init

raylib/external/dirent.h

@@ -0,0 +1,183 @@
+/****************************************************************************
+
+    Declaration of POSIX directory browsing functions and types for Win32.
+
+    Author:  Kevlin Henney (kevlin@acm.org, kevlin@curbralan.com)
+    History: Created March 1997. Updated June 2003.
+             Reviewed by Ramon Santamaria for raylib on January 2020.
+
+    Copyright Kevlin Henney, 1997, 2003. All rights reserved.
+
+    Permission to use, copy, modify, and distribute this software and its
+    documentation for any purpose is hereby granted without fee, provided
+    that this copyright and permissions notice appear in all copies and
+    derivatives.
+    
+    This software is supplied "as is" without express or implied warranty.
+
+    But that said, if there are any problems please get in touch.
+
+****************************************************************************/
+
+#ifndef DIRENT_H
+#define DIRENT_H
+
+// Allow custom memory allocators
+#ifndef DIRENT_MALLOC
+    #define DIRENT_MALLOC(sz)   malloc(sz)
+#endif
+#ifndef DIRENT_FREE
+    #define DIRENT_FREE(p)      free(p)
+#endif
+
+//----------------------------------------------------------------------------------
+// Types and Structures Definition
+//----------------------------------------------------------------------------------
+
+// Fordward declaration of DIR, implementation below
+typedef struct DIR DIR;
+
+struct dirent {
+    char *d_name;
+};
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+//------------------------------------------------------------------------------------
+// Functions Declaration
+//------------------------------------------------------------------------------------
+DIR *opendir(const char *name);
+int closedir(DIR *dir);
+struct dirent *readdir(DIR *dir);
+void rewinddir(DIR *dir);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif      // DIRENT_H
+
+/****************************************************************************
+
+    Implementation of POSIX directory browsing functions and types for Win32.
+
+    Author:  Kevlin Henney (kevlin@acm.org, kevlin@curbralan.com)
+    History: Created March 1997. Updated June 2003.
+             Reviewed by Ramon Santamaria for raylib on January 2020.
+
+    Copyright Kevlin Henney, 1997, 2003. All rights reserved.
+
+    Permission to use, copy, modify, and distribute this software and its
+    documentation for any purpose is hereby granted without fee, provided
+    that this copyright and permissions notice appear in all copies and
+    derivatives.
+    
+    This software is supplied "as is" without express or implied warranty.
+
+    But that said, if there are any problems please get in touch.
+
+****************************************************************************/
+
+#include <io.h>         // _findfirst and _findnext set errno iff they return -1
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+//----------------------------------------------------------------------------------
+// Types and Structures Definition
+//----------------------------------------------------------------------------------
+typedef ptrdiff_t handle_type;  // C99's intptr_t not sufficiently portable
+
+struct DIR {
+    handle_type handle;         // -1 for failed rewind
+    struct _finddata_t info;
+    struct dirent result;       // d_name null iff first time
+    char *name;                 // null-terminated char string
+};
+
+DIR *opendir(const char *name)
+{
+    DIR *dir = 0;
+
+    if (name && name[0])
+    {
+        size_t base_length = strlen(name);
+        
+        // Search pattern must end with suitable wildcard
+        const char *all = strchr("/\\", name[base_length - 1]) ? "*" : "/*";
+
+        if ((dir = (DIR *)DIRENT_MALLOC(sizeof *dir)) != 0 &&
+            (dir->name = (char *)DIRENT_MALLOC(base_length + strlen(all) + 1)) != 0)
+        {
+            strcat(strcpy(dir->name, name), all);
+
+            if ((dir->handle = (handle_type) _findfirst(dir->name, &dir->info)) != -1)
+            {
+                dir->result.d_name = 0;
+            }
+            else  // rollback
+            {
+                DIRENT_FREE(dir->name);
+                DIRENT_FREE(dir);
+                dir = 0;
+            }
+        }
+        else  // rollback
+        {
+            DIRENT_FREE(dir);
+            dir   = 0;
+            errno = ENOMEM;
+        }
+    }
+    else errno = EINVAL;
+
+    return dir;
+}
+
+int closedir(DIR *dir)
+{
+    int result = -1;
+
+    if (dir)
+    {
+        if (dir->handle != -1) result = _findclose(dir->handle);
+
+        DIRENT_FREE(dir->name);
+        DIRENT_FREE(dir);
+    }
+
+    // NOTE: All errors ampped to EBADF
+    if (result == -1) errno = EBADF;
+
+    return result;
+}
+
+struct dirent *readdir(DIR *dir)
+{
+    struct dirent *result = 0;
+
+    if (dir && dir->handle != -1)
+    {
+        if (!dir->result.d_name || _findnext(dir->handle, &dir->info) != -1)
+        {
+            result = &dir->result;
+            result->d_name = dir->info.name;
+        }
+    }
+    else errno = EBADF;
+
+    return result;
+}
+
+void rewinddir(DIR *dir)
+{
+    if (dir && dir->handle != -1)
+    {
+        _findclose(dir->handle);
+        dir->handle = (handle_type) _findfirst(dir->name, &dir->info);
+        dir->result.d_name = 0;
+    }
+    else errno = EBADF;
+}

raylib/external/glfw/deps/getopt.c

@@ -0,0 +1,230 @@
+/* Copyright (c) 2012, Kim Gräsman
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  * Neither the name of Kim Gräsman nor the names of contributors may be used
+ *    to endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL KIM GRÄSMAN BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "getopt.h"
+
+#include <stddef.h>
+#include <string.h>
+
+const int no_argument = 0;
+const int required_argument = 1;
+const int optional_argument = 2;
+
+char* optarg;
+int optopt;
+/* The variable optind [...] shall be initialized to 1 by the system. */
+int optind = 1;
+int opterr;
+
+static char* optcursor = NULL;
+
+/* Implemented based on [1] and [2] for optional arguments.
+   optopt is handled FreeBSD-style, per [3].
+   Other GNU and FreeBSD extensions are purely accidental.
+
+[1] http://pubs.opengroup.org/onlinepubs/000095399/functions/getopt.html
+[2] http://www.kernel.org/doc/man-pages/online/pages/man3/getopt.3.html
+[3] http://www.freebsd.org/cgi/man.cgi?query=getopt&sektion=3&manpath=FreeBSD+9.0-RELEASE
+*/
+int getopt(int argc, char* const argv[], const char* optstring) {
+  int optchar = -1;
+  const char* optdecl = NULL;
+
+  optarg = NULL;
+  opterr = 0;
+  optopt = 0;
+
+  /* Unspecified, but we need it to avoid overrunning the argv bounds. */
+  if (optind >= argc)
+    goto no_more_optchars;
+
+  /* If, when getopt() is called argv[optind] is a null pointer, getopt()
+     shall return -1 without changing optind. */
+  if (argv[optind] == NULL)
+    goto no_more_optchars;
+
+  /* If, when getopt() is called *argv[optind]  is not the character '-',
+     getopt() shall return -1 without changing optind. */
+  if (*argv[optind] != '-')
+    goto no_more_optchars;
+
+  /* If, when getopt() is called argv[optind] points to the string "-",
+     getopt() shall return -1 without changing optind. */
+  if (strcmp(argv[optind], "-") == 0)
+    goto no_more_optchars;
+
+  /* If, when getopt() is called argv[optind] points to the string "--",
+     getopt() shall return -1 after incrementing optind. */
+  if (strcmp(argv[optind], "--") == 0) {
+    ++optind;
+    goto no_more_optchars;
+  }
+
+  if (optcursor == NULL || *optcursor == '\0')
+    optcursor = argv[optind] + 1;
+
+  optchar = *optcursor;
+
+  /* FreeBSD: The variable optopt saves the last known option character
+     returned by getopt(). */
+  optopt = optchar;
+
+  /* The getopt() function shall return the next option character (if one is
+     found) from argv that matches a character in optstring, if there is
+     one that matches. */
+  optdecl = strchr(optstring, optchar);
+  if (optdecl) {
+    /* [I]f a character is followed by a colon, the option takes an
+       argument. */
+    if (optdecl[1] == ':') {
+      optarg = ++optcursor;
+      if (*optarg == '\0') {
+        /* GNU extension: Two colons mean an option takes an
+           optional arg; if there is text in the current argv-element
+           (i.e., in the same word as the option name itself, for example,
+           "-oarg"), then it is returned in optarg, otherwise optarg is set
+           to zero. */
+        if (optdecl[2] != ':') {
+          /* If the option was the last character in the string pointed to by
+             an element of argv, then optarg shall contain the next element
+             of argv, and optind shall be incremented by 2. If the resulting
+             value of optind is greater than argc, this indicates a missing
+             option-argument, and getopt() shall return an error indication.
+
+             Otherwise, optarg shall point to the string following the
+             option character in that element of argv, and optind shall be
+             incremented by 1.
+          */
+          if (++optind < argc) {
+            optarg = argv[optind];
+          } else {
+            /* If it detects a missing option-argument, it shall return the
+               colon character ( ':' ) if the first character of optstring
+               was a colon, or a question-mark character ( '?' ) otherwise.
+            */
+            optarg = NULL;
+            optchar = (optstring[0] == ':') ? ':' : '?';
+          }
+        } else {
+          optarg = NULL;
+        }
+      }
+
+      optcursor = NULL;
+    }
+  } else {
+    /* If getopt() encounters an option character that is not contained in
+       optstring, it shall return the question-mark ( '?' ) character. */
+    optchar = '?';
+  }
+
+  if (optcursor == NULL || *++optcursor == '\0')
+    ++optind;
+
+  return optchar;
+
+no_more_optchars:
+  optcursor = NULL;
+  return -1;
+}
+
+/* Implementation based on [1].
+
+[1] http://www.kernel.org/doc/man-pages/online/pages/man3/getopt.3.html
+*/
+int getopt_long(int argc, char* const argv[], const char* optstring,
+  const struct option* longopts, int* longindex) {
+  const struct option* o = longopts;
+  const struct option* match = NULL;
+  int num_matches = 0;
+  size_t argument_name_length = 0;
+  const char* current_argument = NULL;
+  int retval = -1;
+
+  optarg = NULL;
+  optopt = 0;
+
+  if (optind >= argc)
+    return -1;
+
+  if (strlen(argv[optind]) < 3 || strncmp(argv[optind], "--", 2) != 0)
+    return getopt(argc, argv, optstring);
+
+  /* It's an option; starts with -- and is longer than two chars. */
+  current_argument = argv[optind] + 2;
+  argument_name_length = strcspn(current_argument, "=");
+  for (; o->name; ++o) {
+    if (strncmp(o->name, current_argument, argument_name_length) == 0) {
+      match = o;
+      ++num_matches;
+    }
+  }
+
+  if (num_matches == 1) {
+    /* If longindex is not NULL, it points to a variable which is set to the
+       index of the long option relative to longopts. */
+    if (longindex)
+      *longindex = (int) (match - longopts);
+
+    /* If flag is NULL, then getopt_long() shall return val.
+       Otherwise, getopt_long() returns 0, and flag shall point to a variable
+       which shall be set to val if the option is found, but left unchanged if
+       the option is not found. */
+    if (match->flag)
+      *(match->flag) = match->val;
+
+    retval = match->flag ? 0 : match->val;
+
+    if (match->has_arg != no_argument) {
+      optarg = strchr(argv[optind], '=');
+      if (optarg != NULL)
+        ++optarg;
+
+      if (match->has_arg == required_argument) {
+        /* Only scan the next argv for required arguments. Behavior is not
+           specified, but has been observed with Ubuntu and Mac OSX. */
+        if (optarg == NULL && ++optind < argc) {
+          optarg = argv[optind];
+        }
+
+        if (optarg == NULL)
+          retval = ':';
+      }
+    } else if (strchr(argv[optind], '=')) {
+      /* An argument was provided to a non-argument option.
+         I haven't seen this specified explicitly, but both GNU and BSD-based
+         implementations show this behavior.
+      */
+      retval = '?';
+    }
+  } else {
+    /* Unknown option or ambiguous match. */
+    retval = '?';
+  }
+
+  ++optind;
+  return retval;
+}

raylib/external/glfw/deps/getopt.h

@@ -0,0 +1,57 @@
+/* Copyright (c) 2012, Kim Gräsman
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  * Neither the name of Kim Gräsman nor the names of contributors may be used
+ *    to endorse or promote products derived from this software without specific
+ *    prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL KIM GRÄSMAN BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef INCLUDED_GETOPT_PORT_H
+#define INCLUDED_GETOPT_PORT_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+extern const int no_argument;
+extern const int required_argument;
+extern const int optional_argument;
+
+extern char* optarg;
+extern int optind, opterr, optopt;
+
+struct option {
+  const char* name;
+  int has_arg;
+  int* flag;
+  int val;
+};
+
+int getopt(int argc, char* const argv[], const char* optstring);
+
+int getopt_long(int argc, char* const argv[],
+  const char* optstring, const struct option* longopts, int* longindex);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif // INCLUDED_GETOPT_PORT_H

raylib/external/glfw/deps/mingw/_mingw_dxhelper.h

@@ -0,0 +1,117 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the mingw-w64 runtime package.
+ * No warranty is given; refer to the file DISCLAIMER within this package.
+ */
+
+#if defined(_MSC_VER) && !defined(_MSC_EXTENSIONS)
+#define NONAMELESSUNION		1
+#endif
+#if defined(NONAMELESSSTRUCT) && \
+   !defined(NONAMELESSUNION)
+#define NONAMELESSUNION		1
+#endif
+#if defined(NONAMELESSUNION)  && \
+   !defined(NONAMELESSSTRUCT)
+#define NONAMELESSSTRUCT	1
+#endif
+#if !defined(__GNU_EXTENSION)
+#if defined(__GNUC__) || defined(__GNUG__)
+#define __GNU_EXTENSION		__extension__
+#else
+#define __GNU_EXTENSION
+#endif
+#endif /* __extension__ */
+
+#ifndef __ANONYMOUS_DEFINED
+#define __ANONYMOUS_DEFINED
+#if defined(__GNUC__) || defined(__GNUG__)
+#define _ANONYMOUS_UNION	__extension__
+#define _ANONYMOUS_STRUCT	__extension__
+#else
+#define _ANONYMOUS_UNION
+#define _ANONYMOUS_STRUCT
+#endif
+#ifndef NONAMELESSUNION
+#define _UNION_NAME(x)
+#define _STRUCT_NAME(x)
+#else /* NONAMELESSUNION */
+#define _UNION_NAME(x)  x
+#define _STRUCT_NAME(x) x
+#endif
+#endif	/* __ANONYMOUS_DEFINED */
+
+#ifndef DUMMYUNIONNAME
+# ifdef NONAMELESSUNION
+#  define DUMMYUNIONNAME  u
+#  define DUMMYUNIONNAME1 u1	/* Wine uses this variant */
+#  define DUMMYUNIONNAME2 u2
+#  define DUMMYUNIONNAME3 u3
+#  define DUMMYUNIONNAME4 u4
+#  define DUMMYUNIONNAME5 u5
+#  define DUMMYUNIONNAME6 u6
+#  define DUMMYUNIONNAME7 u7
+#  define DUMMYUNIONNAME8 u8
+#  define DUMMYUNIONNAME9 u9
+# else /* NONAMELESSUNION */
+#  define DUMMYUNIONNAME
+#  define DUMMYUNIONNAME1	/* Wine uses this variant */
+#  define DUMMYUNIONNAME2
+#  define DUMMYUNIONNAME3
+#  define DUMMYUNIONNAME4
+#  define DUMMYUNIONNAME5
+#  define DUMMYUNIONNAME6
+#  define DUMMYUNIONNAME7
+#  define DUMMYUNIONNAME8
+#  define DUMMYUNIONNAME9
+# endif
+#endif	/* DUMMYUNIONNAME */
+
+#if !defined(DUMMYUNIONNAME1)	/* MinGW does not define this one */
+# ifdef NONAMELESSUNION
+#  define DUMMYUNIONNAME1 u1	/* Wine uses this variant */
+# else
+#  define DUMMYUNIONNAME1	/* Wine uses this variant */
+# endif
+#endif	/* DUMMYUNIONNAME1 */
+
+#ifndef DUMMYSTRUCTNAME
+# ifdef NONAMELESSUNION
+#  define DUMMYSTRUCTNAME  s
+#  define DUMMYSTRUCTNAME1 s1	/* Wine uses this variant */
+#  define DUMMYSTRUCTNAME2 s2
+#  define DUMMYSTRUCTNAME3 s3
+#  define DUMMYSTRUCTNAME4 s4
+#  define DUMMYSTRUCTNAME5 s5
+# else
+#  define DUMMYSTRUCTNAME
+#  define DUMMYSTRUCTNAME1	/* Wine uses this variant */
+#  define DUMMYSTRUCTNAME2
+#  define DUMMYSTRUCTNAME3
+#  define DUMMYSTRUCTNAME4
+#  define DUMMYSTRUCTNAME5
+# endif
+#endif /* DUMMYSTRUCTNAME */
+
+/* These are for compatibility with the Wine source tree */
+
+#ifndef WINELIB_NAME_AW
+# ifdef __MINGW_NAME_AW
+#   define WINELIB_NAME_AW  __MINGW_NAME_AW
+# else
+#  ifdef UNICODE
+#   define WINELIB_NAME_AW(func) func##W
+#  else
+#   define WINELIB_NAME_AW(func) func##A
+#  endif
+# endif
+#endif	/* WINELIB_NAME_AW */
+
+#ifndef DECL_WINELIB_TYPE_AW
+# ifdef __MINGW_TYPEDEF_AW
+#  define DECL_WINELIB_TYPE_AW  __MINGW_TYPEDEF_AW
+# else
+#  define DECL_WINELIB_TYPE_AW(type)  typedef WINELIB_NAME_AW(type) type;
+# endif
+#endif	/* DECL_WINELIB_TYPE_AW */
+

raylib/external/glfw/deps/mingw/xinput.h

@@ -0,0 +1,239 @@
+/*
+ * The Wine project - Xinput Joystick Library
+ * Copyright 2008 Andrew Fenn
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef __WINE_XINPUT_H
+#define __WINE_XINPUT_H
+
+#include <windef.h>
+
+/*
+ * Bitmasks for the joysticks buttons, determines what has
+ * been pressed on the joystick, these need to be mapped
+ * to whatever device you're using instead of an xbox 360
+ * joystick
+ */
+
+#define XINPUT_GAMEPAD_DPAD_UP          0x0001
+#define XINPUT_GAMEPAD_DPAD_DOWN        0x0002
+#define XINPUT_GAMEPAD_DPAD_LEFT        0x0004
+#define XINPUT_GAMEPAD_DPAD_RIGHT       0x0008
+#define XINPUT_GAMEPAD_START            0x0010
+#define XINPUT_GAMEPAD_BACK             0x0020
+#define XINPUT_GAMEPAD_LEFT_THUMB       0x0040
+#define XINPUT_GAMEPAD_RIGHT_THUMB      0x0080
+#define XINPUT_GAMEPAD_LEFT_SHOULDER    0x0100
+#define XINPUT_GAMEPAD_RIGHT_SHOULDER   0x0200
+#define XINPUT_GAMEPAD_A                0x1000
+#define XINPUT_GAMEPAD_B                0x2000
+#define XINPUT_GAMEPAD_X                0x4000
+#define XINPUT_GAMEPAD_Y                0x8000
+
+/*
+ * Defines the flags used to determine if the user is pushing
+ * down on a button, not holding a button, etc
+ */
+
+#define XINPUT_KEYSTROKE_KEYDOWN        0x0001
+#define XINPUT_KEYSTROKE_KEYUP          0x0002
+#define XINPUT_KEYSTROKE_REPEAT         0x0004
+
+/*
+ * Defines the codes which are returned by XInputGetKeystroke
+ */
+
+#define VK_PAD_A                        0x5800
+#define VK_PAD_B                        0x5801
+#define VK_PAD_X                        0x5802
+#define VK_PAD_Y                        0x5803
+#define VK_PAD_RSHOULDER                0x5804
+#define VK_PAD_LSHOULDER                0x5805
+#define VK_PAD_LTRIGGER                 0x5806
+#define VK_PAD_RTRIGGER                 0x5807
+#define VK_PAD_DPAD_UP                  0x5810
+#define VK_PAD_DPAD_DOWN                0x5811
+#define VK_PAD_DPAD_LEFT                0x5812
+#define VK_PAD_DPAD_RIGHT               0x5813
+#define VK_PAD_START                    0x5814
+#define VK_PAD_BACK                     0x5815
+#define VK_PAD_LTHUMB_PRESS             0x5816
+#define VK_PAD_RTHUMB_PRESS             0x5817
+#define VK_PAD_LTHUMB_UP                0x5820
+#define VK_PAD_LTHUMB_DOWN              0x5821
+#define VK_PAD_LTHUMB_RIGHT             0x5822
+#define VK_PAD_LTHUMB_LEFT              0x5823
+#define VK_PAD_LTHUMB_UPLEFT            0x5824
+#define VK_PAD_LTHUMB_UPRIGHT           0x5825
+#define VK_PAD_LTHUMB_DOWNRIGHT         0x5826
+#define VK_PAD_LTHUMB_DOWNLEFT          0x5827
+#define VK_PAD_RTHUMB_UP                0x5830
+#define VK_PAD_RTHUMB_DOWN              0x5831
+#define VK_PAD_RTHUMB_RIGHT             0x5832
+#define VK_PAD_RTHUMB_LEFT              0x5833
+#define VK_PAD_RTHUMB_UPLEFT            0x5834
+#define VK_PAD_RTHUMB_UPRIGHT           0x5835
+#define VK_PAD_RTHUMB_DOWNRIGHT         0x5836
+#define VK_PAD_RTHUMB_DOWNLEFT          0x5837
+
+/*
+ * Deadzones are for analogue joystick controls on the joypad
+ * which determine when input should be assumed to be in the
+ * middle of the pad. This is a threshold to stop a joypad
+ * controlling the game when the player isn't touching the
+ * controls.
+ */
+
+#define XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE  7849
+#define XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE 8689
+#define XINPUT_GAMEPAD_TRIGGER_THRESHOLD    30
+
+
+/*
+ * Defines what type of abilities the type of joystick has
+ * DEVTYPE_GAMEPAD is available for all joysticks, however
+ * there may be more specific identifiers for other joysticks
+ * which are being used.
+ */
+
+#define XINPUT_DEVTYPE_GAMEPAD          0x01
+#define XINPUT_DEVSUBTYPE_GAMEPAD       0x01
+#define XINPUT_DEVSUBTYPE_WHEEL         0x02
+#define XINPUT_DEVSUBTYPE_ARCADE_STICK  0x03
+#define XINPUT_DEVSUBTYPE_FLIGHT_SICK   0x04
+#define XINPUT_DEVSUBTYPE_DANCE_PAD     0x05
+#define XINPUT_DEVSUBTYPE_GUITAR        0x06
+#define XINPUT_DEVSUBTYPE_DRUM_KIT      0x08
+
+/*
+ * These are used with the XInputGetCapabilities function to
+ * determine the abilities to the joystick which has been
+ * plugged in.
+ */
+
+#define XINPUT_CAPS_VOICE_SUPPORTED     0x0004
+#define XINPUT_FLAG_GAMEPAD             0x00000001
+
+/*
+ * Defines the status of the battery if one is used in the
+ * attached joystick. The first two define if the joystick
+ * supports a battery. Disconnected means that the joystick
+ * isn't connected. Wired shows that the joystick is a wired
+ * joystick.
+ */
+
+#define BATTERY_DEVTYPE_GAMEPAD         0x00
+#define BATTERY_DEVTYPE_HEADSET         0x01
+#define BATTERY_TYPE_DISCONNECTED       0x00
+#define BATTERY_TYPE_WIRED              0x01
+#define BATTERY_TYPE_ALKALINE           0x02
+#define BATTERY_TYPE_NIMH               0x03
+#define BATTERY_TYPE_UNKNOWN            0xFF
+#define BATTERY_LEVEL_EMPTY             0x00
+#define BATTERY_LEVEL_LOW               0x01
+#define BATTERY_LEVEL_MEDIUM            0x02
+#define BATTERY_LEVEL_FULL              0x03
+
+/*
+ * How many joysticks can be used with this library. Games that
+ * use the xinput library will not go over this number.
+ */
+
+#define XUSER_MAX_COUNT                 4
+#define XUSER_INDEX_ANY                 0x000000FF
+
+/*
+ * Defines the structure of an xbox 360 joystick.
+ */
+
+typedef struct _XINPUT_GAMEPAD {
+    WORD wButtons;
+    BYTE bLeftTrigger;
+    BYTE bRightTrigger;
+    SHORT sThumbLX;
+    SHORT sThumbLY;
+    SHORT sThumbRX;
+    SHORT sThumbRY;
+} XINPUT_GAMEPAD, *PXINPUT_GAMEPAD;
+
+typedef struct _XINPUT_STATE {
+    DWORD dwPacketNumber;
+    XINPUT_GAMEPAD Gamepad;
+} XINPUT_STATE, *PXINPUT_STATE;
+
+/*
+ * Defines the structure of how much vibration is set on both the
+ * right and left motors in a joystick. If you're not using a 360
+ * joystick you will have to map these to your device.
+ */
+
+typedef struct _XINPUT_VIBRATION {
+    WORD wLeftMotorSpeed;
+    WORD wRightMotorSpeed;
+} XINPUT_VIBRATION, *PXINPUT_VIBRATION;
+
+/*
+ * Defines the structure for what kind of abilities the joystick has
+ * such abilities are things such as if the joystick has the ability
+ * to send and receive audio, if the joystick is in fact a driving
+ * wheel or perhaps if the joystick is some kind of dance pad or
+ * guitar.
+ */
+
+typedef struct _XINPUT_CAPABILITIES {
+    BYTE Type;
+    BYTE SubType;
+    WORD Flags;
+    XINPUT_GAMEPAD Gamepad;
+    XINPUT_VIBRATION Vibration;
+} XINPUT_CAPABILITIES, *PXINPUT_CAPABILITIES;
+
+/*
+ * Defines the structure for a joystick input event which is
+ * retrieved using the function XInputGetKeystroke
+ */
+typedef struct _XINPUT_KEYSTROKE {
+    WORD VirtualKey;
+    WCHAR Unicode;
+    WORD Flags;
+    BYTE UserIndex;
+    BYTE HidCode;
+} XINPUT_KEYSTROKE, *PXINPUT_KEYSTROKE;
+
+typedef struct _XINPUT_BATTERY_INFORMATION
+{
+    BYTE BatteryType;
+    BYTE BatteryLevel;
+} XINPUT_BATTERY_INFORMATION, *PXINPUT_BATTERY_INFORMATION;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void WINAPI XInputEnable(WINBOOL);
+DWORD WINAPI XInputSetState(DWORD, XINPUT_VIBRATION*);
+DWORD WINAPI XInputGetState(DWORD, XINPUT_STATE*);
+DWORD WINAPI XInputGetKeystroke(DWORD, DWORD, PXINPUT_KEYSTROKE);
+DWORD WINAPI XInputGetCapabilities(DWORD, DWORD, XINPUT_CAPABILITIES*);
+DWORD WINAPI XInputGetDSoundAudioDeviceGuids(DWORD, GUID*, GUID*);
+DWORD WINAPI XInputGetBatteryInformation(DWORD, BYTE, XINPUT_BATTERY_INFORMATION*);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __WINE_XINPUT_H */

raylib/external/glfw/deps/wayland/fractional-scale-v1.xml

@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="fractional_scale_v1">
+  <copyright>
+    Copyright © 2022 Kenny Levinsen
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <description summary="Protocol for requesting fractional surface scales">
+    This protocol allows a compositor to suggest for surfaces to render at
+    fractional scales.
+
+    A client can submit scaled content by utilizing wp_viewport. This is done by
+    creating a wp_viewport object for the surface and setting the destination
+    rectangle to the surface size before the scale factor is applied.
+
+    The buffer size is calculated by multiplying the surface size by the
+    intended scale.
+
+    The wl_surface buffer scale should remain set to 1.
+
+    If a surface has a surface-local size of 100 px by 50 px and wishes to
+    submit buffers with a scale of 1.5, then a buffer of 150px by 75 px should
+    be used and the wp_viewport destination rectangle should be 100 px by 50 px.
+
+    For toplevel surfaces, the size is rounded halfway away from zero. The
+    rounding algorithm for subsurface position and size is not defined.
+  </description>
+
+  <interface name="wp_fractional_scale_manager_v1" version="1">
+    <description summary="fractional surface scale information">
+      A global interface for requesting surfaces to use fractional scales.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="unbind the fractional surface scale interface">
+        Informs the server that the client will not be using this protocol
+        object anymore. This does not affect any other objects,
+        wp_fractional_scale_v1 objects included.
+      </description>
+    </request>
+
+    <enum name="error">
+      <entry name="fractional_scale_exists" value="0"
+        summary="the surface already has a fractional_scale object associated"/>
+    </enum>
+
+    <request name="get_fractional_scale">
+      <description summary="extend surface interface for scale information">
+        Create an add-on object for the the wl_surface to let the compositor
+        request fractional scales. If the given wl_surface already has a
+        wp_fractional_scale_v1 object associated, the fractional_scale_exists
+        protocol error is raised.
+      </description>
+      <arg name="id" type="new_id" interface="wp_fractional_scale_v1"
+           summary="the new surface scale info interface id"/>
+      <arg name="surface" type="object" interface="wl_surface"
+           summary="the surface"/>
+    </request>
+  </interface>
+
+  <interface name="wp_fractional_scale_v1" version="1">
+    <description summary="fractional scale interface to a wl_surface">
+      An additional interface to a wl_surface object which allows the compositor
+      to inform the client of the preferred scale.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="remove surface scale information for surface">
+        Destroy the fractional scale object. When this object is destroyed,
+        preferred_scale events will no longer be sent.
+      </description>
+    </request>
+
+    <event name="preferred_scale">
+      <description summary="notify of new preferred scale">
+        Notification of a new preferred scale for this surface that the
+        compositor suggests that the client should use.
+
+        The sent scale is the numerator of a fraction with a denominator of 120.
+      </description>
+      <arg name="scale" type="uint" summary="the new preferred scale"/>
+    </event>
+  </interface>
+</protocol>

raylib/external/glfw/deps/wayland/idle-inhibit-unstable-v1.xml

@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="idle_inhibit_unstable_v1">
+
+  <copyright>
+    Copyright © 2015 Samsung Electronics Co., Ltd
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <interface name="zwp_idle_inhibit_manager_v1" version="1">
+    <description summary="control behavior when display idles">
+      This interface permits inhibiting the idle behavior such as screen
+      blanking, locking, and screensaving.  The client binds the idle manager
+      globally, then creates idle-inhibitor objects for each surface.
+
+      Warning! The protocol described in this file is experimental and
+      backward incompatible changes may be made. Backward compatible changes
+      may be added together with the corresponding interface version bump.
+      Backward incompatible changes are done by bumping the version number in
+      the protocol and interface names and resetting the interface version.
+      Once the protocol is to be declared stable, the 'z' prefix and the
+      version number in the protocol and interface names are removed and the
+      interface version number is reset.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the idle inhibitor object">
+	Destroy the inhibit manager.
+      </description>
+    </request>
+
+    <request name="create_inhibitor">
+      <description summary="create a new inhibitor object">
+	Create a new inhibitor object associated with the given surface.
+      </description>
+      <arg name="id" type="new_id" interface="zwp_idle_inhibitor_v1"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="the surface that inhibits the idle behavior"/>
+    </request>
+
+  </interface>
+
+  <interface name="zwp_idle_inhibitor_v1" version="1">
+    <description summary="context object for inhibiting idle behavior">
+      An idle inhibitor prevents the output that the associated surface is
+      visible on from being set to a state where it is not visually usable due
+      to lack of user interaction (e.g. blanked, dimmed, locked, set to power
+      save, etc.)  Any screensaver processes are also blocked from displaying.
+
+      If the surface is destroyed, unmapped, becomes occluded, loses
+      visibility, or otherwise becomes not visually relevant for the user, the
+      idle inhibitor will not be honored by the compositor; if the surface
+      subsequently regains visibility the inhibitor takes effect once again.
+      Likewise, the inhibitor isn't honored if the system was already idled at
+      the time the inhibitor was established, although if the system later
+      de-idles and re-idles the inhibitor will take effect.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the idle inhibitor object">
+	Remove the inhibitor effect from the associated wl_surface.
+      </description>
+    </request>
+
+  </interface>
+</protocol>

raylib/external/glfw/deps/wayland/pointer-constraints-unstable-v1.xml

@@ -0,0 +1,339 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="pointer_constraints_unstable_v1">
+
+  <copyright>
+    Copyright © 2014      Jonas Ådahl
+    Copyright © 2015      Red Hat Inc.
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <description summary="protocol for constraining pointer motions">
+    This protocol specifies a set of interfaces used for adding constraints to
+    the motion of a pointer. Possible constraints include confining pointer
+    motions to a given region, or locking it to its current position.
+
+    In order to constrain the pointer, a client must first bind the global
+    interface "wp_pointer_constraints" which, if a compositor supports pointer
+    constraints, is exposed by the registry. Using the bound global object, the
+    client uses the request that corresponds to the type of constraint it wants
+    to make. See wp_pointer_constraints for more details.
+
+    Warning! The protocol described in this file is experimental and backward
+    incompatible changes may be made. Backward compatible changes may be added
+    together with the corresponding interface version bump. Backward
+    incompatible changes are done by bumping the version number in the protocol
+    and interface names and resetting the interface version. Once the protocol
+    is to be declared stable, the 'z' prefix and the version number in the
+    protocol and interface names are removed and the interface version number is
+    reset.
+  </description>
+
+  <interface name="zwp_pointer_constraints_v1" version="1">
+    <description summary="constrain the movement of a pointer">
+      The global interface exposing pointer constraining functionality. It
+      exposes two requests: lock_pointer for locking the pointer to its
+      position, and confine_pointer for locking the pointer to a region.
+
+      The lock_pointer and confine_pointer requests create the objects
+      wp_locked_pointer and wp_confined_pointer respectively, and the client can
+      use these objects to interact with the lock.
+
+      For any surface, only one lock or confinement may be active across all
+      wl_pointer objects of the same seat. If a lock or confinement is requested
+      when another lock or confinement is active or requested on the same surface
+      and with any of the wl_pointer objects of the same seat, an
+      'already_constrained' error will be raised.
+    </description>
+
+    <enum name="error">
+      <description summary="wp_pointer_constraints error values">
+	These errors can be emitted in response to wp_pointer_constraints
+	requests.
+      </description>
+      <entry name="already_constrained" value="1"
+	     summary="pointer constraint already requested on that surface"/>
+    </enum>
+
+    <enum name="lifetime">
+      <description summary="constraint lifetime">
+	These values represent different lifetime semantics. They are passed
+	as arguments to the factory requests to specify how the constraint
+	lifetimes should be managed.
+      </description>
+      <entry name="oneshot" value="1">
+	<description summary="the pointer constraint is defunct once deactivated">
+	  A oneshot pointer constraint will never reactivate once it has been
+	  deactivated. See the corresponding deactivation event
+	  (wp_locked_pointer.unlocked and wp_confined_pointer.unconfined) for
+	  details.
+	</description>
+      </entry>
+      <entry name="persistent" value="2">
+	<description summary="the pointer constraint may reactivate">
+	  A persistent pointer constraint may again reactivate once it has
+	  been deactivated. See the corresponding deactivation event
+	  (wp_locked_pointer.unlocked and wp_confined_pointer.unconfined) for
+	  details.
+	</description>
+      </entry>
+    </enum>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the pointer constraints manager object">
+	Used by the client to notify the server that it will no longer use this
+	pointer constraints object.
+      </description>
+    </request>
+
+    <request name="lock_pointer">
+      <description summary="lock pointer to a position">
+	The lock_pointer request lets the client request to disable movements of
+	the virtual pointer (i.e. the cursor), effectively locking the pointer
+	to a position. This request may not take effect immediately; in the
+	future, when the compositor deems implementation-specific constraints
+	are satisfied, the pointer lock will be activated and the compositor
+	sends a locked event.
+
+	The protocol provides no guarantee that the constraints are ever
+	satisfied, and does not require the compositor to send an error if the
+	constraints cannot ever be satisfied. It is thus possible to request a
+	lock that will never activate.
+
+	There may not be another pointer constraint of any kind requested or
+	active on the surface for any of the wl_pointer objects of the seat of
+	the passed pointer when requesting a lock. If there is, an error will be
+	raised. See general pointer lock documentation for more details.
+
+	The intersection of the region passed with this request and the input
+	region of the surface is used to determine where the pointer must be
+	in order for the lock to activate. It is up to the compositor whether to
+	warp the pointer or require some kind of user interaction for the lock
+	to activate. If the region is null the surface input region is used.
+
+	A surface may receive pointer focus without the lock being activated.
+
+	The request creates a new object wp_locked_pointer which is used to
+	interact with the lock as well as receive updates about its state. See
+	the the description of wp_locked_pointer for further information.
+
+	Note that while a pointer is locked, the wl_pointer objects of the
+	corresponding seat will not emit any wl_pointer.motion events, but
+	relative motion events will still be emitted via wp_relative_pointer
+	objects of the same seat. wl_pointer.axis and wl_pointer.button events
+	are unaffected.
+      </description>
+      <arg name="id" type="new_id" interface="zwp_locked_pointer_v1"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="surface to lock pointer to"/>
+      <arg name="pointer" type="object" interface="wl_pointer"
+	   summary="the pointer that should be locked"/>
+      <arg name="region" type="object" interface="wl_region" allow-null="true"
+	   summary="region of surface"/>
+      <arg name="lifetime" type="uint" enum="lifetime" summary="lock lifetime"/>
+    </request>
+
+    <request name="confine_pointer">
+      <description summary="confine pointer to a region">
+	The confine_pointer request lets the client request to confine the
+	pointer cursor to a given region. This request may not take effect
+	immediately; in the future, when the compositor deems implementation-
+	specific constraints are satisfied, the pointer confinement will be
+	activated and the compositor sends a confined event.
+
+	The intersection of the region passed with this request and the input
+	region of the surface is used to determine where the pointer must be
+	in order for the confinement to activate. It is up to the compositor
+	whether to warp the pointer or require some kind of user interaction for
+	the confinement to activate. If the region is null the surface input
+	region is used.
+
+	The request will create a new object wp_confined_pointer which is used
+	to interact with the confinement as well as receive updates about its
+	state. See the the description of wp_confined_pointer for further
+	information.
+      </description>
+      <arg name="id" type="new_id" interface="zwp_confined_pointer_v1"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="surface to lock pointer to"/>
+      <arg name="pointer" type="object" interface="wl_pointer"
+	   summary="the pointer that should be confined"/>
+      <arg name="region" type="object" interface="wl_region" allow-null="true"
+	   summary="region of surface"/>
+      <arg name="lifetime" type="uint" enum="lifetime" summary="confinement lifetime"/>
+    </request>
+  </interface>
+
+  <interface name="zwp_locked_pointer_v1" version="1">
+    <description summary="receive relative pointer motion events">
+      The wp_locked_pointer interface represents a locked pointer state.
+
+      While the lock of this object is active, the wl_pointer objects of the
+      associated seat will not emit any wl_pointer.motion events.
+
+      This object will send the event 'locked' when the lock is activated.
+      Whenever the lock is activated, it is guaranteed that the locked surface
+      will already have received pointer focus and that the pointer will be
+      within the region passed to the request creating this object.
+
+      To unlock the pointer, send the destroy request. This will also destroy
+      the wp_locked_pointer object.
+
+      If the compositor decides to unlock the pointer the unlocked event is
+      sent. See wp_locked_pointer.unlock for details.
+
+      When unlocking, the compositor may warp the cursor position to the set
+      cursor position hint. If it does, it will not result in any relative
+      motion events emitted via wp_relative_pointer.
+
+      If the surface the lock was requested on is destroyed and the lock is not
+      yet activated, the wp_locked_pointer object is now defunct and must be
+      destroyed.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the locked pointer object">
+	Destroy the locked pointer object. If applicable, the compositor will
+	unlock the pointer.
+      </description>
+    </request>
+
+    <request name="set_cursor_position_hint">
+      <description summary="set the pointer cursor position hint">
+	Set the cursor position hint relative to the top left corner of the
+	surface.
+
+	If the client is drawing its own cursor, it should update the position
+	hint to the position of its own cursor. A compositor may use this
+	information to warp the pointer upon unlock in order to avoid pointer
+	jumps.
+
+	The cursor position hint is double buffered. The new hint will only take
+	effect when the associated surface gets it pending state applied. See
+	wl_surface.commit for details.
+      </description>
+      <arg name="surface_x" type="fixed"
+	   summary="surface-local x coordinate"/>
+      <arg name="surface_y" type="fixed"
+	   summary="surface-local y coordinate"/>
+    </request>
+
+    <request name="set_region">
+      <description summary="set a new lock region">
+	Set a new region used to lock the pointer.
+
+	The new lock region is double-buffered. The new lock region will
+	only take effect when the associated surface gets its pending state
+	applied. See wl_surface.commit for details.
+
+	For details about the lock region, see wp_locked_pointer.
+      </description>
+      <arg name="region" type="object" interface="wl_region" allow-null="true"
+	   summary="region of surface"/>
+    </request>
+
+    <event name="locked">
+      <description summary="lock activation event">
+	Notification that the pointer lock of the seat's pointer is activated.
+      </description>
+    </event>
+
+    <event name="unlocked">
+      <description summary="lock deactivation event">
+	Notification that the pointer lock of the seat's pointer is no longer
+	active. If this is a oneshot pointer lock (see
+	wp_pointer_constraints.lifetime) this object is now defunct and should
+	be destroyed. If this is a persistent pointer lock (see
+	wp_pointer_constraints.lifetime) this pointer lock may again
+	reactivate in the future.
+      </description>
+    </event>
+  </interface>
+
+  <interface name="zwp_confined_pointer_v1" version="1">
+    <description summary="confined pointer object">
+      The wp_confined_pointer interface represents a confined pointer state.
+
+      This object will send the event 'confined' when the confinement is
+      activated. Whenever the confinement is activated, it is guaranteed that
+      the surface the pointer is confined to will already have received pointer
+      focus and that the pointer will be within the region passed to the request
+      creating this object. It is up to the compositor to decide whether this
+      requires some user interaction and if the pointer will warp to within the
+      passed region if outside.
+
+      To unconfine the pointer, send the destroy request. This will also destroy
+      the wp_confined_pointer object.
+
+      If the compositor decides to unconfine the pointer the unconfined event is
+      sent. The wp_confined_pointer object is at this point defunct and should
+      be destroyed.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the confined pointer object">
+	Destroy the confined pointer object. If applicable, the compositor will
+	unconfine the pointer.
+      </description>
+    </request>
+
+    <request name="set_region">
+      <description summary="set a new confine region">
+	Set a new region used to confine the pointer.
+
+	The new confine region is double-buffered. The new confine region will
+	only take effect when the associated surface gets its pending state
+	applied. See wl_surface.commit for details.
+
+	If the confinement is active when the new confinement region is applied
+	and the pointer ends up outside of newly applied region, the pointer may
+	warped to a position within the new confinement region. If warped, a
+	wl_pointer.motion event will be emitted, but no
+	wp_relative_pointer.relative_motion event.
+
+	The compositor may also, instead of using the new region, unconfine the
+	pointer.
+
+	For details about the confine region, see wp_confined_pointer.
+      </description>
+      <arg name="region" type="object" interface="wl_region" allow-null="true"
+	   summary="region of surface"/>
+    </request>
+
+    <event name="confined">
+      <description summary="pointer confined">
+	Notification that the pointer confinement of the seat's pointer is
+	activated.
+      </description>
+    </event>
+
+    <event name="unconfined">
+      <description summary="pointer unconfined">
+	Notification that the pointer confinement of the seat's pointer is no
+	longer active. If this is a oneshot pointer confinement (see
+	wp_pointer_constraints.lifetime) this object is now defunct and should
+	be destroyed. If this is a persistent pointer confinement (see
+	wp_pointer_constraints.lifetime) this pointer confinement may again
+	reactivate in the future.
+      </description>
+    </event>
+  </interface>
+
+</protocol>

raylib/external/glfw/deps/wayland/relative-pointer-unstable-v1.xml

@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="relative_pointer_unstable_v1">
+
+  <copyright>
+    Copyright © 2014      Jonas Ådahl
+    Copyright © 2015      Red Hat Inc.
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <description summary="protocol for relative pointer motion events">
+    This protocol specifies a set of interfaces used for making clients able to
+    receive relative pointer events not obstructed by barriers (such as the
+    monitor edge or other pointer barriers).
+
+    To start receiving relative pointer events, a client must first bind the
+    global interface "wp_relative_pointer_manager" which, if a compositor
+    supports relative pointer motion events, is exposed by the registry. After
+    having created the relative pointer manager proxy object, the client uses
+    it to create the actual relative pointer object using the
+    "get_relative_pointer" request given a wl_pointer. The relative pointer
+    motion events will then, when applicable, be transmitted via the proxy of
+    the newly created relative pointer object. See the documentation of the
+    relative pointer interface for more details.
+
+    Warning! The protocol described in this file is experimental and backward
+    incompatible changes may be made. Backward compatible changes may be added
+    together with the corresponding interface version bump. Backward
+    incompatible changes are done by bumping the version number in the protocol
+    and interface names and resetting the interface version. Once the protocol
+    is to be declared stable, the 'z' prefix and the version number in the
+    protocol and interface names are removed and the interface version number is
+    reset.
+  </description>
+
+  <interface name="zwp_relative_pointer_manager_v1" version="1">
+    <description summary="get relative pointer objects">
+      A global interface used for getting the relative pointer object for a
+      given pointer.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the relative pointer manager object">
+	Used by the client to notify the server that it will no longer use this
+	relative pointer manager object.
+      </description>
+    </request>
+
+    <request name="get_relative_pointer">
+      <description summary="get a relative pointer object">
+	Create a relative pointer interface given a wl_pointer object. See the
+	wp_relative_pointer interface for more details.
+      </description>
+      <arg name="id" type="new_id" interface="zwp_relative_pointer_v1"/>
+      <arg name="pointer" type="object" interface="wl_pointer"/>
+    </request>
+  </interface>
+
+  <interface name="zwp_relative_pointer_v1" version="1">
+    <description summary="relative pointer object">
+      A wp_relative_pointer object is an extension to the wl_pointer interface
+      used for emitting relative pointer events. It shares the same focus as
+      wl_pointer objects of the same seat and will only emit events when it has
+      focus.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="release the relative pointer object"/>
+    </request>
+
+    <event name="relative_motion">
+      <description summary="relative pointer motion">
+	Relative x/y pointer motion from the pointer of the seat associated with
+	this object.
+
+	A relative motion is in the same dimension as regular wl_pointer motion
+	events, except they do not represent an absolute position. For example,
+	moving a pointer from (x, y) to (x', y') would have the equivalent
+	relative motion (x' - x, y' - y). If a pointer motion caused the
+	absolute pointer position to be clipped by for example the edge of the
+	monitor, the relative motion is unaffected by the clipping and will
+	represent the unclipped motion.
+
+	This event also contains non-accelerated motion deltas. The
+	non-accelerated delta is, when applicable, the regular pointer motion
+	delta as it was before having applied motion acceleration and other
+	transformations such as normalization.
+
+	Note that the non-accelerated delta does not represent 'raw' events as
+	they were read from some device. Pointer motion acceleration is device-
+	and configuration-specific and non-accelerated deltas and accelerated
+	deltas may have the same value on some devices.
+
+	Relative motions are not coupled to wl_pointer.motion events, and can be
+	sent in combination with such events, but also independently. There may
+	also be scenarios where wl_pointer.motion is sent, but there is no
+	relative motion. The order of an absolute and relative motion event
+	originating from the same physical motion is not guaranteed.
+
+	If the client needs button events or focus state, it can receive them
+	from a wl_pointer object of the same seat that the wp_relative_pointer
+	object is associated with.
+      </description>
+      <arg name="utime_hi" type="uint"
+	   summary="high 32 bits of a 64 bit timestamp with microsecond granularity"/>
+      <arg name="utime_lo" type="uint"
+	   summary="low 32 bits of a 64 bit timestamp with microsecond granularity"/>
+      <arg name="dx" type="fixed"
+	   summary="the x component of the motion vector"/>
+      <arg name="dy" type="fixed"
+	   summary="the y component of the motion vector"/>
+      <arg name="dx_unaccel" type="fixed"
+	   summary="the x component of the unaccelerated motion vector"/>
+      <arg name="dy_unaccel" type="fixed"
+	   summary="the y component of the unaccelerated motion vector"/>
+    </event>
+  </interface>
+
+</protocol>

raylib/external/glfw/deps/wayland/viewporter.xml

@@ -0,0 +1,180 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="viewporter">
+
+  <copyright>
+    Copyright © 2013-2016 Collabora, Ltd.
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <interface name="wp_viewporter" version="1">
+    <description summary="surface cropping and scaling">
+      The global interface exposing surface cropping and scaling
+      capabilities is used to instantiate an interface extension for a
+      wl_surface object. This extended interface will then allow
+      cropping and scaling the surface contents, effectively
+      disconnecting the direct relationship between the buffer and the
+      surface size.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="unbind from the cropping and scaling interface">
+	Informs the server that the client will not be using this
+	protocol object anymore. This does not affect any other objects,
+	wp_viewport objects included.
+      </description>
+    </request>
+
+    <enum name="error">
+      <entry name="viewport_exists" value="0"
+             summary="the surface already has a viewport object associated"/>
+    </enum>
+
+    <request name="get_viewport">
+      <description summary="extend surface interface for crop and scale">
+	Instantiate an interface extension for the given wl_surface to
+	crop and scale its content. If the given wl_surface already has
+	a wp_viewport object associated, the viewport_exists
+	protocol error is raised.
+      </description>
+      <arg name="id" type="new_id" interface="wp_viewport"
+           summary="the new viewport interface id"/>
+      <arg name="surface" type="object" interface="wl_surface"
+           summary="the surface"/>
+    </request>
+  </interface>
+
+  <interface name="wp_viewport" version="1">
+    <description summary="crop and scale interface to a wl_surface">
+      An additional interface to a wl_surface object, which allows the
+      client to specify the cropping and scaling of the surface
+      contents.
+
+      This interface works with two concepts: the source rectangle (src_x,
+      src_y, src_width, src_height), and the destination size (dst_width,
+      dst_height). The contents of the source rectangle are scaled to the
+      destination size, and content outside the source rectangle is ignored.
+      This state is double-buffered, and is applied on the next
+      wl_surface.commit.
+
+      The two parts of crop and scale state are independent: the source
+      rectangle, and the destination size. Initially both are unset, that
+      is, no scaling is applied. The whole of the current wl_buffer is
+      used as the source, and the surface size is as defined in
+      wl_surface.attach.
+
+      If the destination size is set, it causes the surface size to become
+      dst_width, dst_height. The source (rectangle) is scaled to exactly
+      this size. This overrides whatever the attached wl_buffer size is,
+      unless the wl_buffer is NULL. If the wl_buffer is NULL, the surface
+      has no content and therefore no size. Otherwise, the size is always
+      at least 1x1 in surface local coordinates.
+
+      If the source rectangle is set, it defines what area of the wl_buffer is
+      taken as the source. If the source rectangle is set and the destination
+      size is not set, then src_width and src_height must be integers, and the
+      surface size becomes the source rectangle size. This results in cropping
+      without scaling. If src_width or src_height are not integers and
+      destination size is not set, the bad_size protocol error is raised when
+      the surface state is applied.
+
+      The coordinate transformations from buffer pixel coordinates up to
+      the surface-local coordinates happen in the following order:
+        1. buffer_transform (wl_surface.set_buffer_transform)
+        2. buffer_scale (wl_surface.set_buffer_scale)
+        3. crop and scale (wp_viewport.set*)
+      This means, that the source rectangle coordinates of crop and scale
+      are given in the coordinates after the buffer transform and scale,
+      i.e. in the coordinates that would be the surface-local coordinates
+      if the crop and scale was not applied.
+
+      If src_x or src_y are negative, the bad_value protocol error is raised.
+      Otherwise, if the source rectangle is partially or completely outside of
+      the non-NULL wl_buffer, then the out_of_buffer protocol error is raised
+      when the surface state is applied. A NULL wl_buffer does not raise the
+      out_of_buffer error.
+
+      If the wl_surface associated with the wp_viewport is destroyed,
+      all wp_viewport requests except 'destroy' raise the protocol error
+      no_surface.
+
+      If the wp_viewport object is destroyed, the crop and scale
+      state is removed from the wl_surface. The change will be applied
+      on the next wl_surface.commit.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="remove scaling and cropping from the surface">
+	The associated wl_surface's crop and scale state is removed.
+	The change is applied on the next wl_surface.commit.
+      </description>
+    </request>
+
+    <enum name="error">
+      <entry name="bad_value" value="0"
+	     summary="negative or zero values in width or height"/>
+      <entry name="bad_size" value="1"
+	     summary="destination size is not integer"/>
+      <entry name="out_of_buffer" value="2"
+	     summary="source rectangle extends outside of the content area"/>
+      <entry name="no_surface" value="3"
+	     summary="the wl_surface was destroyed"/>
+    </enum>
+
+    <request name="set_source">
+      <description summary="set the source rectangle for cropping">
+	Set the source rectangle of the associated wl_surface. See
+	wp_viewport for the description, and relation to the wl_buffer
+	size.
+
+	If all of x, y, width and height are -1.0, the source rectangle is
+	unset instead. Any other set of values where width or height are zero
+	or negative, or x or y are negative, raise the bad_value protocol
+	error.
+
+	The crop and scale state is double-buffered state, and will be
+	applied on the next wl_surface.commit.
+      </description>
+      <arg name="x" type="fixed" summary="source rectangle x"/>
+      <arg name="y" type="fixed" summary="source rectangle y"/>
+      <arg name="width" type="fixed" summary="source rectangle width"/>
+      <arg name="height" type="fixed" summary="source rectangle height"/>
+    </request>
+
+    <request name="set_destination">
+      <description summary="set the surface size for scaling">
+	Set the destination size of the associated wl_surface. See
+	wp_viewport for the description, and relation to the wl_buffer
+	size.
+
+	If width is -1 and height is -1, the destination size is unset
+	instead. Any other pair of values for width and height that
+	contains zero or negative values raises the bad_value protocol
+	error.
+
+	The crop and scale state is double-buffered state, and will be
+	applied on the next wl_surface.commit.
+      </description>
+      <arg name="width" type="int" summary="surface width"/>
+      <arg name="height" type="int" summary="surface height"/>
+    </request>
+  </interface>
+
+</protocol>

raylib/external/glfw/deps/wayland/xdg-activation-v1.xml

@@ -0,0 +1,200 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="xdg_activation_v1">
+
+  <copyright>
+    Copyright © 2020 Aleix Pol Gonzalez &lt;aleixpol@kde.org&gt;
+    Copyright © 2020 Carlos Garnacho &lt;carlosg@gnome.org&gt;
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <description summary="Protocol for requesting activation of surfaces">
+    The way for a client to pass focus to another toplevel is as follows.
+
+    The client that intends to activate another toplevel uses the
+    xdg_activation_v1.get_activation_token request to get an activation token.
+    This token is then forwarded to the client, which is supposed to activate
+    one of its surfaces, through a separate band of communication.
+
+    One established way of doing this is through the XDG_ACTIVATION_TOKEN
+    environment variable of a newly launched child process. The child process
+    should unset the environment variable again right after reading it out in
+    order to avoid propagating it to other child processes.
+
+    Another established way exists for Applications implementing the D-Bus
+    interface org.freedesktop.Application, which should get their token under
+    activation-token on their platform_data.
+
+    In general activation tokens may be transferred across clients through
+    means not described in this protocol.
+
+    The client to be activated will then pass the token
+    it received to the xdg_activation_v1.activate request. The compositor can
+    then use this token to decide how to react to the activation request.
+
+    The token the activating client gets may be ineffective either already at
+    the time it receives it, for example if it was not focused, for focus
+    stealing prevention. The activating client will have no way to discover
+    the validity of the token, and may still forward it to the to be activated
+    client.
+
+    The created activation token may optionally get information attached to it
+    that can be used by the compositor to identify the application that we
+    intend to activate. This can for example be used to display a visual hint
+    about what application is being started.
+
+    Warning! The protocol described in this file is currently in the testing
+    phase. Backward compatible changes may be added together with the
+    corresponding interface version bump. Backward incompatible changes can
+    only be done by creating a new major version of the extension.
+  </description>
+
+  <interface name="xdg_activation_v1" version="1">
+    <description summary="interface for activating surfaces">
+      A global interface used for informing the compositor about applications
+      being activated or started, or for applications to request to be
+      activated.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the xdg_activation object">
+        Notify the compositor that the xdg_activation object will no longer be
+        used.
+
+        The child objects created via this interface are unaffected and should
+        be destroyed separately.
+      </description>
+    </request>
+
+    <request name="get_activation_token">
+      <description summary="requests a token">
+        Creates an xdg_activation_token_v1 object that will provide
+        the initiating client with a unique token for this activation. This
+        token should be offered to the clients to be activated.
+      </description>
+
+      <arg name="id" type="new_id" interface="xdg_activation_token_v1"/>
+    </request>
+
+    <request name="activate">
+      <description summary="notify new interaction being available">
+        Requests surface activation. It's up to the compositor to display
+        this information as desired, for example by placing the surface above
+        the rest.
+
+        The compositor may know who requested this by checking the activation
+        token and might decide not to follow through with the activation if it's
+        considered unwanted.
+
+        Compositors can ignore unknown activation tokens when an invalid
+        token is passed.
+      </description>
+      <arg name="token" type="string" summary="the activation token of the initiating client"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="the wl_surface to activate"/>
+    </request>
+  </interface>
+
+  <interface name="xdg_activation_token_v1" version="1">
+    <description summary="an exported activation handle">
+      An object for setting up a token and receiving a token handle that can
+      be passed as an activation token to another client.
+
+      The object is created using the xdg_activation_v1.get_activation_token
+      request. This object should then be populated with the app_id, surface
+      and serial information and committed. The compositor shall then issue a
+      done event with the token. In case the request's parameters are invalid,
+      the compositor will provide an invalid token.
+    </description>
+
+    <enum name="error">
+      <entry name="already_used" value="0"
+             summary="The token has already been used previously"/>
+    </enum>
+
+    <request name="set_serial">
+      <description summary="specifies the seat and serial of the activating event">
+        Provides information about the seat and serial event that requested the
+        token.
+
+        The serial can come from an input or focus event. For instance, if a
+        click triggers the launch of a third-party client, the launcher client
+        should send a set_serial request with the serial and seat from the
+        wl_pointer.button event.
+
+        Some compositors might refuse to activate toplevels when the token
+        doesn't have a valid and recent enough event serial.
+
+        Must be sent before commit. This information is optional.
+      </description>
+      <arg name="serial" type="uint"
+           summary="the serial of the event that triggered the activation"/>
+      <arg name="seat" type="object" interface="wl_seat"
+           summary="the wl_seat of the event"/>
+    </request>
+
+    <request name="set_app_id">
+      <description summary="specifies the application being activated">
+        The requesting client can specify an app_id to associate the token
+        being created with it.
+
+        Must be sent before commit. This information is optional.
+      </description>
+      <arg name="app_id" type="string"
+           summary="the application id of the client being activated."/>
+    </request>
+
+    <request name="set_surface">
+      <description summary="specifies the surface requesting activation">
+        This request sets the surface requesting the activation. Note, this is
+        different from the surface that will be activated.
+
+        Some compositors might refuse to activate toplevels when the token
+        doesn't have a requesting surface.
+
+        Must be sent before commit. This information is optional.
+      </description>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="the requesting surface"/>
+    </request>
+
+    <request name="commit">
+      <description summary="issues the token request">
+        Requests an activation token based on the different parameters that
+        have been offered through set_serial, set_surface and set_app_id.
+      </description>
+    </request>
+
+    <event name="done">
+      <description summary="the exported activation token">
+        The 'done' event contains the unique token of this activation request
+        and notifies that the provider is done.
+      </description>
+      <arg name="token" type="string" summary="the exported activation token"/>
+    </event>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the xdg_activation_token_v1 object">
+        Notify the compositor that the xdg_activation_token_v1 object will no
+        longer be used. The received token stays valid.
+      </description>
+    </request>
+  </interface>
+</protocol>

raylib/external/glfw/deps/wayland/xdg-decoration-unstable-v1.xml

@@ -0,0 +1,156 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="xdg_decoration_unstable_v1">
+  <copyright>
+    Copyright © 2018 Simon Ser
+
+    Permission is hereby granted, free of charge, to any person obtaining a
+    copy of this software and associated documentation files (the "Software"),
+    to deal in the Software without restriction, including without limitation
+    the rights to use, copy, modify, merge, publish, distribute, sublicense,
+    and/or sell copies of the Software, and to permit persons to whom the
+    Software is furnished to do so, subject to the following conditions:
+
+    The above copyright notice and this permission notice (including the next
+    paragraph) shall be included in all copies or substantial portions of the
+    Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+    THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+    DEALINGS IN THE SOFTWARE.
+  </copyright>
+
+  <interface name="zxdg_decoration_manager_v1" version="1">
+    <description summary="window decoration manager">
+      This interface allows a compositor to announce support for server-side
+      decorations.
+
+      A window decoration is a set of window controls as deemed appropriate by
+      the party managing them, such as user interface components used to move,
+      resize and change a window's state.
+
+      A client can use this protocol to request being decorated by a supporting
+      compositor.
+
+      If compositor and client do not negotiate the use of a server-side
+      decoration using this protocol, clients continue to self-decorate as they
+      see fit.
+
+      Warning! The protocol described in this file is experimental and
+      backward incompatible changes may be made. Backward compatible changes
+      may be added together with the corresponding interface version bump.
+      Backward incompatible changes are done by bumping the version number in
+      the protocol and interface names and resetting the interface version.
+      Once the protocol is to be declared stable, the 'z' prefix and the
+      version number in the protocol and interface names are removed and the
+      interface version number is reset.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the decoration manager object">
+        Destroy the decoration manager. This doesn't destroy objects created
+        with the manager.
+      </description>
+    </request>
+
+    <request name="get_toplevel_decoration">
+      <description summary="create a new toplevel decoration object">
+        Create a new decoration object associated with the given toplevel.
+
+        Creating an xdg_toplevel_decoration from an xdg_toplevel which has a
+        buffer attached or committed is a client error, and any attempts by a
+        client to attach or manipulate a buffer prior to the first
+        xdg_toplevel_decoration.configure event must also be treated as
+        errors.
+      </description>
+      <arg name="id" type="new_id" interface="zxdg_toplevel_decoration_v1"/>
+      <arg name="toplevel" type="object" interface="xdg_toplevel"/>
+    </request>
+  </interface>
+
+  <interface name="zxdg_toplevel_decoration_v1" version="1">
+    <description summary="decoration object for a toplevel surface">
+      The decoration object allows the compositor to toggle server-side window
+      decorations for a toplevel surface. The client can request to switch to
+      another mode.
+
+      The xdg_toplevel_decoration object must be destroyed before its
+      xdg_toplevel.
+    </description>
+
+    <enum name="error">
+      <entry name="unconfigured_buffer" value="0"
+        summary="xdg_toplevel has a buffer attached before configure"/>
+      <entry name="already_constructed" value="1"
+        summary="xdg_toplevel already has a decoration object"/>
+      <entry name="orphaned" value="2"
+        summary="xdg_toplevel destroyed before the decoration object"/>
+    </enum>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the decoration object">
+        Switch back to a mode without any server-side decorations at the next
+        commit.
+      </description>
+    </request>
+
+    <enum name="mode">
+      <description summary="window decoration modes">
+        These values describe window decoration modes.
+      </description>
+      <entry name="client_side" value="1"
+        summary="no server-side window decoration"/>
+      <entry name="server_side" value="2"
+        summary="server-side window decoration"/>
+    </enum>
+
+    <request name="set_mode">
+      <description summary="set the decoration mode">
+        Set the toplevel surface decoration mode. This informs the compositor
+        that the client prefers the provided decoration mode.
+
+        After requesting a decoration mode, the compositor will respond by
+        emitting an xdg_surface.configure event. The client should then update
+        its content, drawing it without decorations if the received mode is
+        server-side decorations. The client must also acknowledge the configure
+        when committing the new content (see xdg_surface.ack_configure).
+
+        The compositor can decide not to use the client's mode and enforce a
+        different mode instead.
+
+        Clients whose decoration mode depend on the xdg_toplevel state may send
+        a set_mode request in response to an xdg_surface.configure event and wait
+        for the next xdg_surface.configure event to prevent unwanted state.
+        Such clients are responsible for preventing configure loops and must
+        make sure not to send multiple successive set_mode requests with the
+        same decoration mode.
+      </description>
+      <arg name="mode" type="uint" enum="mode" summary="the decoration mode"/>
+    </request>
+
+    <request name="unset_mode">
+      <description summary="unset the decoration mode">
+        Unset the toplevel surface decoration mode. This informs the compositor
+        that the client doesn't prefer a particular decoration mode.
+
+        This request has the same semantics as set_mode.
+      </description>
+    </request>
+
+    <event name="configure">
+      <description summary="suggest a surface change">
+        The configure event asks the client to change its decoration mode. The
+        configured state should not be applied immediately. Clients must send an
+        ack_configure in response to this event. See xdg_surface.configure and
+        xdg_surface.ack_configure for details.
+
+        A configure event can be sent at any time. The specified mode must be
+        obeyed by the client.
+      </description>
+      <arg name="mode" type="uint" enum="mode" summary="the decoration mode"/>
+    </event>
+  </interface>
+</protocol>

raylib/external/glfw/include/GLFW/glfw3native.h

@@ -0,0 +1,663 @@
+/*************************************************************************
+ * GLFW 3.4 - www.glfw.org
+ * A library for OpenGL, window and input
+ *------------------------------------------------------------------------
+ * Copyright (c) 2002-2006 Marcus Geelnard
+ * Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty. In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would
+ *    be appreciated but is not required.
+ *
+ * 2. Altered source versions must be plainly marked as such, and must not
+ *    be misrepresented as being the original software.
+ *
+ * 3. This notice may not be removed or altered from any source
+ *    distribution.
+ *
+ *************************************************************************/
+
+#ifndef _glfw3_native_h_
+#define _glfw3_native_h_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*************************************************************************
+ * Doxygen documentation
+ *************************************************************************/
+
+/*! @file glfw3native.h
+ *  @brief The header of the native access functions.
+ *
+ *  This is the header file of the native access functions.  See @ref native for
+ *  more information.
+ */
+/*! @defgroup native Native access
+ *  @brief Functions related to accessing native handles.
+ *
+ *  **By using the native access functions you assert that you know what you're
+ *  doing and how to fix problems caused by using them.  If you don't, you
+ *  shouldn't be using them.**
+ *
+ *  Before the inclusion of @ref glfw3native.h, you may define zero or more
+ *  window system API macro and zero or more context creation API macros.
+ *
+ *  The chosen backends must match those the library was compiled for.  Failure
+ *  to do this will cause a link-time error.
+ *
+ *  The available window API macros are:
+ *  * `GLFW_EXPOSE_NATIVE_WIN32`
+ *  * `GLFW_EXPOSE_NATIVE_COCOA`
+ *  * `GLFW_EXPOSE_NATIVE_X11`
+ *  * `GLFW_EXPOSE_NATIVE_WAYLAND`
+ *
+ *  The available context API macros are:
+ *  * `GLFW_EXPOSE_NATIVE_WGL`
+ *  * `GLFW_EXPOSE_NATIVE_NSGL`
+ *  * `GLFW_EXPOSE_NATIVE_GLX`
+ *  * `GLFW_EXPOSE_NATIVE_EGL`
+ *  * `GLFW_EXPOSE_NATIVE_OSMESA`
+ *
+ *  These macros select which of the native access functions that are declared
+ *  and which platform-specific headers to include.  It is then up your (by
+ *  definition platform-specific) code to handle which of these should be
+ *  defined.
+ *
+ *  If you do not want the platform-specific headers to be included, define
+ *  `GLFW_NATIVE_INCLUDE_NONE` before including the @ref glfw3native.h header.
+ *
+ *  @code
+ *  #define GLFW_EXPOSE_NATIVE_WIN32
+ *  #define GLFW_EXPOSE_NATIVE_WGL
+ *  #define GLFW_NATIVE_INCLUDE_NONE
+ *  #include <GLFW/glfw3native.h>
+ *  @endcode
+ */
+
+
+/*************************************************************************
+ * System headers and types
+ *************************************************************************/
+
+#if !defined(GLFW_NATIVE_INCLUDE_NONE)
+
+ #if defined(GLFW_EXPOSE_NATIVE_WIN32) || defined(GLFW_EXPOSE_NATIVE_WGL)
+  /* This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
+   * example to allow applications to correctly declare a GL_KHR_debug callback)
+   * but windows.h assumes no one will define APIENTRY before it does
+   */
+  #if defined(GLFW_APIENTRY_DEFINED)
+   #undef APIENTRY
+   #undef GLFW_APIENTRY_DEFINED
+  #endif
+  #include <windows.h>
+ #endif
+
+ #if defined(GLFW_EXPOSE_NATIVE_COCOA) || defined(GLFW_EXPOSE_NATIVE_NSGL)
+  #if defined(__OBJC__)
+   #import <Cocoa/Cocoa.h>
+  #else
+   #include <ApplicationServices/ApplicationServices.h>
+   #include <objc/objc.h>
+  #endif
+ #endif
+
+ #if defined(GLFW_EXPOSE_NATIVE_X11) || defined(GLFW_EXPOSE_NATIVE_GLX)
+  #include <X11/Xlib.h>
+  #include <X11/extensions/Xrandr.h>
+ #endif
+
+ #if defined(GLFW_EXPOSE_NATIVE_WAYLAND)
+  #include <wayland-client.h>
+ #endif
+
+ #if defined(GLFW_EXPOSE_NATIVE_WGL)
+  /* WGL is declared by windows.h */
+ #endif
+ #if defined(GLFW_EXPOSE_NATIVE_NSGL)
+  /* NSGL is declared by Cocoa.h */
+ #endif
+ #if defined(GLFW_EXPOSE_NATIVE_GLX)
+  /* This is a workaround for the fact that glfw3.h defines GLAPIENTRY because by
+   * default it also acts as an OpenGL header
+   * However, glx.h will include gl.h, which will define it unconditionally
+   */
+  #if defined(GLFW_GLAPIENTRY_DEFINED)
+   #undef GLAPIENTRY
+   #undef GLFW_GLAPIENTRY_DEFINED
+  #endif
+  #include <GL/glx.h>
+ #endif
+ #if defined(GLFW_EXPOSE_NATIVE_EGL)
+  #include <EGL/egl.h>
+ #endif
+ #if defined(GLFW_EXPOSE_NATIVE_OSMESA)
+  /* This is a workaround for the fact that glfw3.h defines GLAPIENTRY because by
+   * default it also acts as an OpenGL header
+   * However, osmesa.h will include gl.h, which will define it unconditionally
+   */
+  #if defined(GLFW_GLAPIENTRY_DEFINED)
+   #undef GLAPIENTRY
+   #undef GLFW_GLAPIENTRY_DEFINED
+  #endif
+  #include <GL/osmesa.h>
+ #endif
+
+#endif /*GLFW_NATIVE_INCLUDE_NONE*/
+
+
+/*************************************************************************
+ * Functions
+ *************************************************************************/
+
+#if defined(GLFW_EXPOSE_NATIVE_WIN32)
+/*! @brief Returns the adapter device name of the specified monitor.
+ *
+ *  @return The UTF-8 encoded adapter device name (for example `\\.\DISPLAY1`)
+ *  of the specified monitor, or `NULL` if an [error](@ref error_handling)
+ *  occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup native
+ */
+GLFWAPI const char* glfwGetWin32Adapter(GLFWmonitor* monitor);
+
+/*! @brief Returns the display device name of the specified monitor.
+ *
+ *  @return The UTF-8 encoded display device name (for example
+ *  `\\.\DISPLAY1\Monitor0`) of the specified monitor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup native
+ */
+GLFWAPI const char* glfwGetWin32Monitor(GLFWmonitor* monitor);
+
+/*! @brief Returns the `HWND` of the specified window.
+ *
+ *  @return The `HWND` of the specified window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @remark The `HDC` associated with the window can be queried with the
+ *  [GetDC](https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdc)
+ *  function.
+ *  @code
+ *  HDC dc = GetDC(glfwGetWin32Window(window));
+ *  @endcode
+ *  This DC is private and does not need to be released.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI HWND glfwGetWin32Window(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_WGL)
+/*! @brief Returns the `HGLRC` of the specified window.
+ *
+ *  @return The `HGLRC` of the specified window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @remark The `HDC` associated with the window can be queried with the
+ *  [GetDC](https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdc)
+ *  function.
+ *  @code
+ *  HDC dc = GetDC(glfwGetWin32Window(window));
+ *  @endcode
+ *  This DC is private and does not need to be released.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_COCOA)
+/*! @brief Returns the `CGDirectDisplayID` of the specified monitor.
+ *
+ *  @return The `CGDirectDisplayID` of the specified monitor, or
+ *  `kCGNullDirectDisplay` if an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup native
+ */
+GLFWAPI CGDirectDisplayID glfwGetCocoaMonitor(GLFWmonitor* monitor);
+
+/*! @brief Returns the `NSWindow` of the specified window.
+ *
+ *  @return The `NSWindow` of the specified window, or `nil` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI id glfwGetCocoaWindow(GLFWwindow* window);
+
+/*! @brief Returns the `NSView` of the specified window.
+ *
+ *  @return The `NSView` of the specified window, or `nil` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.4.
+ *
+ *  @ingroup native
+ */
+GLFWAPI id glfwGetCocoaView(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_NSGL)
+/*! @brief Returns the `NSOpenGLContext` of the specified window.
+ *
+ *  @return The `NSOpenGLContext` of the specified window, or `nil` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI id glfwGetNSGLContext(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_X11)
+/*! @brief Returns the `Display` used by GLFW.
+ *
+ *  @return The `Display` used by GLFW, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI Display* glfwGetX11Display(void);
+
+/*! @brief Returns the `RRCrtc` of the specified monitor.
+ *
+ *  @return The `RRCrtc` of the specified monitor, or `None` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup native
+ */
+GLFWAPI RRCrtc glfwGetX11Adapter(GLFWmonitor* monitor);
+
+/*! @brief Returns the `RROutput` of the specified monitor.
+ *
+ *  @return The `RROutput` of the specified monitor, or `None` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.1.
+ *
+ *  @ingroup native
+ */
+GLFWAPI RROutput glfwGetX11Monitor(GLFWmonitor* monitor);
+
+/*! @brief Returns the `Window` of the specified window.
+ *
+ *  @return The `Window` of the specified window, or `None` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI Window glfwGetX11Window(GLFWwindow* window);
+
+/*! @brief Sets the current primary selection to the specified string.
+ *
+ *  @param[in] string A UTF-8 encoded string.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The specified string is copied before this function
+ *  returns.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref clipboard
+ *  @sa glfwGetX11SelectionString
+ *  @sa glfwSetClipboardString
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup native
+ */
+GLFWAPI void glfwSetX11SelectionString(const char* string);
+
+/*! @brief Returns the contents of the current primary selection as a string.
+ *
+ *  If the selection is empty or if its contents cannot be converted, `NULL`
+ *  is returned and a @ref GLFW_FORMAT_UNAVAILABLE error is generated.
+ *
+ *  @return The contents of the selection as a UTF-8 encoded string, or `NULL`
+ *  if an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_PLATFORM_UNAVAILABLE and @ref GLFW_PLATFORM_ERROR.
+ *
+ *  @pointer_lifetime The returned string is allocated and freed by GLFW. You
+ *  should not free it yourself. It is valid until the next call to @ref
+ *  glfwGetX11SelectionString or @ref glfwSetX11SelectionString, or until the
+ *  library is terminated.
+ *
+ *  @thread_safety This function must only be called from the main thread.
+ *
+ *  @sa @ref clipboard
+ *  @sa glfwSetX11SelectionString
+ *  @sa glfwGetClipboardString
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup native
+ */
+GLFWAPI const char* glfwGetX11SelectionString(void);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_GLX)
+/*! @brief Returns the `GLXContext` of the specified window.
+ *
+ *  @return The `GLXContext` of the specified window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* window);
+
+/*! @brief Returns the `GLXWindow` of the specified window.
+ *
+ *  @return The `GLXWindow` of the specified window, or `None` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
+ *  GLFW_NO_WINDOW_CONTEXT and @ref GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_WAYLAND)
+/*! @brief Returns the `struct wl_display*` used by GLFW.
+ *
+ *  @return The `struct wl_display*` used by GLFW, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI struct wl_display* glfwGetWaylandDisplay(void);
+
+/*! @brief Returns the `struct wl_output*` of the specified monitor.
+ *
+ *  @return The `struct wl_output*` of the specified monitor, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI struct wl_output* glfwGetWaylandMonitor(GLFWmonitor* monitor);
+
+/*! @brief Returns the main `struct wl_surface*` of the specified window.
+ *
+ *  @return The main `struct wl_surface*` of the specified window, or `NULL` if
+ *  an [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_PLATFORM_UNAVAILABLE.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.2.
+ *
+ *  @ingroup native
+ */
+GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_EGL)
+/*! @brief Returns the `EGLDisplay` used by GLFW.
+ *
+ *  @return The `EGLDisplay` used by GLFW, or `EGL_NO_DISPLAY` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
+ *
+ *  @remark Because EGL is initialized on demand, this function will return
+ *  `EGL_NO_DISPLAY` until the first context has been created via EGL.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI EGLDisplay glfwGetEGLDisplay(void);
+
+/*! @brief Returns the `EGLContext` of the specified window.
+ *
+ *  @return The `EGLContext` of the specified window, or `EGL_NO_CONTEXT` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* window);
+
+/*! @brief Returns the `EGLSurface` of the specified window.
+ *
+ *  @return The `EGLSurface` of the specified window, or `EGL_NO_SURFACE` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.0.
+ *
+ *  @ingroup native
+ */
+GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* window);
+#endif
+
+#if defined(GLFW_EXPOSE_NATIVE_OSMESA)
+/*! @brief Retrieves the color buffer associated with the specified window.
+ *
+ *  @param[in] window The window whose color buffer to retrieve.
+ *  @param[out] width Where to store the width of the color buffer, or `NULL`.
+ *  @param[out] height Where to store the height of the color buffer, or `NULL`.
+ *  @param[out] format Where to store the OSMesa pixel format of the color
+ *  buffer, or `NULL`.
+ *  @param[out] buffer Where to store the address of the color buffer, or
+ *  `NULL`.
+ *  @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup native
+ */
+GLFWAPI int glfwGetOSMesaColorBuffer(GLFWwindow* window, int* width, int* height, int* format, void** buffer);
+
+/*! @brief Retrieves the depth buffer associated with the specified window.
+ *
+ *  @param[in] window The window whose depth buffer to retrieve.
+ *  @param[out] width Where to store the width of the depth buffer, or `NULL`.
+ *  @param[out] height Where to store the height of the depth buffer, or `NULL`.
+ *  @param[out] bytesPerValue Where to store the number of bytes per depth
+ *  buffer element, or `NULL`.
+ *  @param[out] buffer Where to store the address of the depth buffer, or
+ *  `NULL`.
+ *  @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup native
+ */
+GLFWAPI int glfwGetOSMesaDepthBuffer(GLFWwindow* window, int* width, int* height, int* bytesPerValue, void** buffer);
+
+/*! @brief Returns the `OSMesaContext` of the specified window.
+ *
+ *  @return The `OSMesaContext` of the specified window, or `NULL` if an
+ *  [error](@ref error_handling) occurred.
+ *
+ *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
+ *  GLFW_NO_WINDOW_CONTEXT.
+ *
+ *  @thread_safety This function may be called from any thread.  Access is not
+ *  synchronized.
+ *
+ *  @since Added in version 3.3.
+ *
+ *  @ingroup native
+ */
+GLFWAPI OSMesaContext glfwGetOSMesaContext(GLFWwindow* window);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _glfw3_native_h_ */
+

raylib/external/glfw/src/cocoa_init.m

@@ -0,0 +1,696 @@
+//========================================================================
+// GLFW 3.4 macOS (modified for raylib) - www.glfw.org; www.raylib.com
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
+// Copyright (c) 2024 M374LX <wilsalx@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_COCOA)
+
+#include <sys/param.h> // For MAXPATHLEN
+
+// Needed for _NSGetProgname
+#include <crt_externs.h>
+
+// Change to our application bundle's resources directory, if present
+//
+static void changeToResourcesDirectory(void)
+{
+    char resourcesPath[MAXPATHLEN];
+
+    CFBundleRef bundle = CFBundleGetMainBundle();
+    if (!bundle)
+        return;
+
+    CFURLRef resourcesURL = CFBundleCopyResourcesDirectoryURL(bundle);
+
+    CFStringRef last = CFURLCopyLastPathComponent(resourcesURL);
+    if (CFStringCompare(CFSTR("Resources"), last, 0) != kCFCompareEqualTo)
+    {
+        CFRelease(last);
+        CFRelease(resourcesURL);
+        return;
+    }
+
+    CFRelease(last);
+
+    if (!CFURLGetFileSystemRepresentation(resourcesURL,
+                                          true,
+                                          (UInt8*) resourcesPath,
+                                          MAXPATHLEN))
+    {
+        CFRelease(resourcesURL);
+        return;
+    }
+
+    CFRelease(resourcesURL);
+
+    chdir(resourcesPath);
+}
+
+// Set up the menu bar (manually)
+// This is nasty, nasty stuff -- calls to undocumented semi-private APIs that
+// could go away at any moment, lots of stuff that really should be
+// localize(d|able), etc.  Add a nib to save us this horror.
+//
+static void createMenuBar(void)
+{
+    NSString* appName = nil;
+    NSDictionary* bundleInfo = [[NSBundle mainBundle] infoDictionary];
+    NSString* nameKeys[] =
+    {
+        @"CFBundleDisplayName",
+        @"CFBundleName",
+        @"CFBundleExecutable",
+    };
+
+    // Try to figure out what the calling application is called
+
+    for (size_t i = 0;  i < sizeof(nameKeys) / sizeof(nameKeys[0]);  i++)
+    {
+        id name = bundleInfo[nameKeys[i]];
+        if (name &&
+            [name isKindOfClass:[NSString class]] &&
+            ![name isEqualToString:@""])
+        {
+            appName = name;
+            break;
+        }
+    }
+
+    if (!appName)
+    {
+        char** progname = _NSGetProgname();
+        if (progname && *progname)
+            appName = @(*progname);
+        else
+            appName = @"GLFW Application";
+    }
+
+    NSMenu* bar = [[NSMenu alloc] init];
+    [NSApp setMainMenu:bar];
+
+    NSMenuItem* appMenuItem =
+        [bar addItemWithTitle:@"" action:NULL keyEquivalent:@""];
+    NSMenu* appMenu = [[NSMenu alloc] init];
+    [appMenuItem setSubmenu:appMenu];
+
+    [appMenu addItemWithTitle:[NSString stringWithFormat:@"About %@", appName]
+                       action:@selector(orderFrontStandardAboutPanel:)
+                keyEquivalent:@""];
+    [appMenu addItem:[NSMenuItem separatorItem]];
+    NSMenu* servicesMenu = [[NSMenu alloc] init];
+    [NSApp setServicesMenu:servicesMenu];
+    [[appMenu addItemWithTitle:@"Services"
+                       action:NULL
+                keyEquivalent:@""] setSubmenu:servicesMenu];
+    [servicesMenu release];
+    [appMenu addItem:[NSMenuItem separatorItem]];
+    [appMenu addItemWithTitle:[NSString stringWithFormat:@"Hide %@", appName]
+                       action:@selector(hide:)
+                keyEquivalent:@"h"];
+    [[appMenu addItemWithTitle:@"Hide Others"
+                       action:@selector(hideOtherApplications:)
+                keyEquivalent:@"h"]
+        setKeyEquivalentModifierMask:NSEventModifierFlagOption | NSEventModifierFlagCommand];
+    [appMenu addItemWithTitle:@"Show All"
+                       action:@selector(unhideAllApplications:)
+                keyEquivalent:@""];
+    [appMenu addItem:[NSMenuItem separatorItem]];
+    [appMenu addItemWithTitle:[NSString stringWithFormat:@"Quit %@", appName]
+                       action:@selector(terminate:)
+                keyEquivalent:@"q"];
+
+    NSMenuItem* windowMenuItem =
+        [bar addItemWithTitle:@"" action:NULL keyEquivalent:@""];
+    [bar release];
+    NSMenu* windowMenu = [[NSMenu alloc] initWithTitle:@"Window"];
+    [NSApp setWindowsMenu:windowMenu];
+    [windowMenuItem setSubmenu:windowMenu];
+
+    [windowMenu addItemWithTitle:@"Minimize"
+                          action:@selector(performMiniaturize:)
+                   keyEquivalent:@"m"];
+    [windowMenu addItemWithTitle:@"Zoom"
+                          action:@selector(performZoom:)
+                   keyEquivalent:@""];
+    [windowMenu addItem:[NSMenuItem separatorItem]];
+    [windowMenu addItemWithTitle:@"Bring All to Front"
+                          action:@selector(arrangeInFront:)
+                   keyEquivalent:@""];
+
+    // TODO: Make this appear at the bottom of the menu (for consistency)
+    [windowMenu addItem:[NSMenuItem separatorItem]];
+    [[windowMenu addItemWithTitle:@"Enter Full Screen"
+                           action:@selector(toggleFullScreen:)
+                    keyEquivalent:@"f"]
+     setKeyEquivalentModifierMask:NSEventModifierFlagControl | NSEventModifierFlagCommand];
+
+    // Prior to Snow Leopard, we need to use this oddly-named semi-private API
+    // to get the application menu working properly.
+    SEL setAppleMenuSelector = NSSelectorFromString(@"setAppleMenu:");
+    [NSApp performSelector:setAppleMenuSelector withObject:appMenu];
+}
+
+// Create key code translation tables
+//
+static void createKeyTablesCocoa(void)
+{
+    memset(_glfw.ns.keycodes, -1, sizeof(_glfw.ns.keycodes));
+    memset(_glfw.ns.scancodes, -1, sizeof(_glfw.ns.scancodes));
+
+    _glfw.ns.keycodes[0x1D] = GLFW_KEY_0;
+    _glfw.ns.keycodes[0x12] = GLFW_KEY_1;
+    _glfw.ns.keycodes[0x13] = GLFW_KEY_2;
+    _glfw.ns.keycodes[0x14] = GLFW_KEY_3;
+    _glfw.ns.keycodes[0x15] = GLFW_KEY_4;
+    _glfw.ns.keycodes[0x17] = GLFW_KEY_5;
+    _glfw.ns.keycodes[0x16] = GLFW_KEY_6;
+    _glfw.ns.keycodes[0x1A] = GLFW_KEY_7;
+    _glfw.ns.keycodes[0x1C] = GLFW_KEY_8;
+    _glfw.ns.keycodes[0x19] = GLFW_KEY_9;
+    _glfw.ns.keycodes[0x00] = GLFW_KEY_A;
+    _glfw.ns.keycodes[0x0B] = GLFW_KEY_B;
+    _glfw.ns.keycodes[0x08] = GLFW_KEY_C;
+    _glfw.ns.keycodes[0x02] = GLFW_KEY_D;
+    _glfw.ns.keycodes[0x0E] = GLFW_KEY_E;
+    _glfw.ns.keycodes[0x03] = GLFW_KEY_F;
+    _glfw.ns.keycodes[0x05] = GLFW_KEY_G;
+    _glfw.ns.keycodes[0x04] = GLFW_KEY_H;
+    _glfw.ns.keycodes[0x22] = GLFW_KEY_I;
+    _glfw.ns.keycodes[0x26] = GLFW_KEY_J;
+    _glfw.ns.keycodes[0x28] = GLFW_KEY_K;
+    _glfw.ns.keycodes[0x25] = GLFW_KEY_L;
+    _glfw.ns.keycodes[0x2E] = GLFW_KEY_M;
+    _glfw.ns.keycodes[0x2D] = GLFW_KEY_N;
+    _glfw.ns.keycodes[0x1F] = GLFW_KEY_O;
+    _glfw.ns.keycodes[0x23] = GLFW_KEY_P;
+    _glfw.ns.keycodes[0x0C] = GLFW_KEY_Q;
+    _glfw.ns.keycodes[0x0F] = GLFW_KEY_R;
+    _glfw.ns.keycodes[0x01] = GLFW_KEY_S;
+    _glfw.ns.keycodes[0x11] = GLFW_KEY_T;
+    _glfw.ns.keycodes[0x20] = GLFW_KEY_U;
+    _glfw.ns.keycodes[0x09] = GLFW_KEY_V;
+    _glfw.ns.keycodes[0x0D] = GLFW_KEY_W;
+    _glfw.ns.keycodes[0x07] = GLFW_KEY_X;
+    _glfw.ns.keycodes[0x10] = GLFW_KEY_Y;
+    _glfw.ns.keycodes[0x06] = GLFW_KEY_Z;
+
+    _glfw.ns.keycodes[0x27] = GLFW_KEY_APOSTROPHE;
+    _glfw.ns.keycodes[0x2A] = GLFW_KEY_BACKSLASH;
+    _glfw.ns.keycodes[0x2B] = GLFW_KEY_COMMA;
+    _glfw.ns.keycodes[0x18] = GLFW_KEY_EQUAL;
+    _glfw.ns.keycodes[0x32] = GLFW_KEY_GRAVE_ACCENT;
+    _glfw.ns.keycodes[0x21] = GLFW_KEY_LEFT_BRACKET;
+    _glfw.ns.keycodes[0x1B] = GLFW_KEY_MINUS;
+    _glfw.ns.keycodes[0x2F] = GLFW_KEY_PERIOD;
+    _glfw.ns.keycodes[0x1E] = GLFW_KEY_RIGHT_BRACKET;
+    _glfw.ns.keycodes[0x29] = GLFW_KEY_SEMICOLON;
+    _glfw.ns.keycodes[0x2C] = GLFW_KEY_SLASH;
+    _glfw.ns.keycodes[0x0A] = GLFW_KEY_WORLD_1;
+
+    _glfw.ns.keycodes[0x33] = GLFW_KEY_BACKSPACE;
+    _glfw.ns.keycodes[0x39] = GLFW_KEY_CAPS_LOCK;
+    _glfw.ns.keycodes[0x75] = GLFW_KEY_DELETE;
+    _glfw.ns.keycodes[0x7D] = GLFW_KEY_DOWN;
+    _glfw.ns.keycodes[0x77] = GLFW_KEY_END;
+    _glfw.ns.keycodes[0x24] = GLFW_KEY_ENTER;
+    _glfw.ns.keycodes[0x35] = GLFW_KEY_ESCAPE;
+    _glfw.ns.keycodes[0x7A] = GLFW_KEY_F1;
+    _glfw.ns.keycodes[0x78] = GLFW_KEY_F2;
+    _glfw.ns.keycodes[0x63] = GLFW_KEY_F3;
+    _glfw.ns.keycodes[0x76] = GLFW_KEY_F4;
+    _glfw.ns.keycodes[0x60] = GLFW_KEY_F5;
+    _glfw.ns.keycodes[0x61] = GLFW_KEY_F6;
+    _glfw.ns.keycodes[0x62] = GLFW_KEY_F7;
+    _glfw.ns.keycodes[0x64] = GLFW_KEY_F8;
+    _glfw.ns.keycodes[0x65] = GLFW_KEY_F9;
+    _glfw.ns.keycodes[0x6D] = GLFW_KEY_F10;
+    _glfw.ns.keycodes[0x67] = GLFW_KEY_F11;
+    _glfw.ns.keycodes[0x6F] = GLFW_KEY_F12;
+    _glfw.ns.keycodes[0x69] = GLFW_KEY_PRINT_SCREEN;
+    _glfw.ns.keycodes[0x6B] = GLFW_KEY_F14;
+    _glfw.ns.keycodes[0x71] = GLFW_KEY_F15;
+    _glfw.ns.keycodes[0x6A] = GLFW_KEY_F16;
+    _glfw.ns.keycodes[0x40] = GLFW_KEY_F17;
+    _glfw.ns.keycodes[0x4F] = GLFW_KEY_F18;
+    _glfw.ns.keycodes[0x50] = GLFW_KEY_F19;
+    _glfw.ns.keycodes[0x5A] = GLFW_KEY_F20;
+    _glfw.ns.keycodes[0x73] = GLFW_KEY_HOME;
+    _glfw.ns.keycodes[0x72] = GLFW_KEY_INSERT;
+    _glfw.ns.keycodes[0x7B] = GLFW_KEY_LEFT;
+    _glfw.ns.keycodes[0x3A] = GLFW_KEY_LEFT_ALT;
+    _glfw.ns.keycodes[0x3B] = GLFW_KEY_LEFT_CONTROL;
+    _glfw.ns.keycodes[0x38] = GLFW_KEY_LEFT_SHIFT;
+    _glfw.ns.keycodes[0x37] = GLFW_KEY_LEFT_SUPER;
+    _glfw.ns.keycodes[0x6E] = GLFW_KEY_MENU;
+    _glfw.ns.keycodes[0x47] = GLFW_KEY_NUM_LOCK;
+    _glfw.ns.keycodes[0x79] = GLFW_KEY_PAGE_DOWN;
+    _glfw.ns.keycodes[0x74] = GLFW_KEY_PAGE_UP;
+    _glfw.ns.keycodes[0x7C] = GLFW_KEY_RIGHT;
+    _glfw.ns.keycodes[0x3D] = GLFW_KEY_RIGHT_ALT;
+    _glfw.ns.keycodes[0x3E] = GLFW_KEY_RIGHT_CONTROL;
+    _glfw.ns.keycodes[0x3C] = GLFW_KEY_RIGHT_SHIFT;
+    _glfw.ns.keycodes[0x36] = GLFW_KEY_RIGHT_SUPER;
+    _glfw.ns.keycodes[0x31] = GLFW_KEY_SPACE;
+    _glfw.ns.keycodes[0x30] = GLFW_KEY_TAB;
+    _glfw.ns.keycodes[0x7E] = GLFW_KEY_UP;
+
+    _glfw.ns.keycodes[0x52] = GLFW_KEY_KP_0;
+    _glfw.ns.keycodes[0x53] = GLFW_KEY_KP_1;
+    _glfw.ns.keycodes[0x54] = GLFW_KEY_KP_2;
+    _glfw.ns.keycodes[0x55] = GLFW_KEY_KP_3;
+    _glfw.ns.keycodes[0x56] = GLFW_KEY_KP_4;
+    _glfw.ns.keycodes[0x57] = GLFW_KEY_KP_5;
+    _glfw.ns.keycodes[0x58] = GLFW_KEY_KP_6;
+    _glfw.ns.keycodes[0x59] = GLFW_KEY_KP_7;
+    _glfw.ns.keycodes[0x5B] = GLFW_KEY_KP_8;
+    _glfw.ns.keycodes[0x5C] = GLFW_KEY_KP_9;
+    _glfw.ns.keycodes[0x45] = GLFW_KEY_KP_ADD;
+    _glfw.ns.keycodes[0x41] = GLFW_KEY_KP_DECIMAL;
+    _glfw.ns.keycodes[0x4B] = GLFW_KEY_KP_DIVIDE;
+    _glfw.ns.keycodes[0x4C] = GLFW_KEY_KP_ENTER;
+    _glfw.ns.keycodes[0x51] = GLFW_KEY_KP_EQUAL;
+    _glfw.ns.keycodes[0x43] = GLFW_KEY_KP_MULTIPLY;
+    _glfw.ns.keycodes[0x4E] = GLFW_KEY_KP_SUBTRACT;
+
+    for (int scancode = 0;  scancode < 256;  scancode++)
+    {
+        // Store the reverse translation for faster key name lookup
+        if (_glfw.ns.keycodes[scancode] >= 0)
+            _glfw.ns.scancodes[_glfw.ns.keycodes[scancode]] = scancode;
+    }
+}
+
+// Retrieve Unicode data for the current keyboard layout
+//
+static GLFWbool updateUnicodeData(void)
+{
+    if (_glfw.ns.inputSource)
+    {
+        CFRelease(_glfw.ns.inputSource);
+        _glfw.ns.inputSource = NULL;
+        _glfw.ns.unicodeData = nil;
+    }
+
+    _glfw.ns.inputSource = TISCopyCurrentKeyboardLayoutInputSource();
+    if (!_glfw.ns.inputSource)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to retrieve keyboard layout input source");
+        return GLFW_FALSE;
+    }
+
+    _glfw.ns.unicodeData =
+        TISGetInputSourceProperty(_glfw.ns.inputSource,
+                                  kTISPropertyUnicodeKeyLayoutData);
+    if (!_glfw.ns.unicodeData)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to retrieve keyboard layout Unicode data");
+        return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+// Load HIToolbox.framework and the TIS symbols we need from it
+//
+static GLFWbool initializeTIS(void)
+{
+    // This works only because Cocoa has already loaded it properly
+    _glfw.ns.tis.bundle =
+        CFBundleGetBundleWithIdentifier(CFSTR("com.apple.HIToolbox"));
+    if (!_glfw.ns.tis.bundle)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to load HIToolbox.framework");
+        return GLFW_FALSE;
+    }
+
+    CFStringRef* kPropertyUnicodeKeyLayoutData =
+        CFBundleGetDataPointerForName(_glfw.ns.tis.bundle,
+                                      CFSTR("kTISPropertyUnicodeKeyLayoutData"));
+    _glfw.ns.tis.CopyCurrentKeyboardLayoutInputSource =
+        CFBundleGetFunctionPointerForName(_glfw.ns.tis.bundle,
+                                          CFSTR("TISCopyCurrentKeyboardLayoutInputSource"));
+    _glfw.ns.tis.GetInputSourceProperty =
+        CFBundleGetFunctionPointerForName(_glfw.ns.tis.bundle,
+                                          CFSTR("TISGetInputSourceProperty"));
+    _glfw.ns.tis.GetKbdType =
+        CFBundleGetFunctionPointerForName(_glfw.ns.tis.bundle,
+                                          CFSTR("LMGetKbdType"));
+
+    if (!kPropertyUnicodeKeyLayoutData ||
+        !TISCopyCurrentKeyboardLayoutInputSource ||
+        !TISGetInputSourceProperty ||
+        !LMGetKbdType)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to load TIS API symbols");
+        return GLFW_FALSE;
+    }
+
+    _glfw.ns.tis.kPropertyUnicodeKeyLayoutData =
+        *kPropertyUnicodeKeyLayoutData;
+
+    return updateUnicodeData();
+}
+
+@interface GLFWHelper : NSObject
+@end
+
+@implementation GLFWHelper
+
+- (void)selectedKeyboardInputSourceChanged:(NSObject* )object
+{
+    updateUnicodeData();
+}
+
+- (void)doNothing:(id)object
+{
+}
+
+@end // GLFWHelper
+
+@interface GLFWApplicationDelegate : NSObject <NSApplicationDelegate>
+@end
+
+@implementation GLFWApplicationDelegate
+
+- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
+{
+    for (_GLFWwindow* window = _glfw.windowListHead;  window;  window = window->next)
+        _glfwInputWindowCloseRequest(window);
+
+    return NSTerminateCancel;
+}
+
+- (void)applicationDidChangeScreenParameters:(NSNotification *) notification
+{
+    for (_GLFWwindow* window = _glfw.windowListHead;  window;  window = window->next)
+    {
+        if (window->context.client != GLFW_NO_API)
+            [window->context.nsgl.object update];
+    }
+
+    _glfwPollMonitorsCocoa();
+}
+
+- (void)applicationWillFinishLaunching:(NSNotification *)notification
+{
+    if (_glfw.hints.init.ns.menubar)
+    {
+        // Menu bar setup must go between sharedApplication and finishLaunching
+        // in order to properly emulate the behavior of NSApplicationMain
+
+        if ([[NSBundle mainBundle] pathForResource:@"MainMenu" ofType:@"nib"])
+        {
+            [[NSBundle mainBundle] loadNibNamed:@"MainMenu"
+                                          owner:NSApp
+                                topLevelObjects:&_glfw.ns.nibObjects];
+        }
+        else
+            createMenuBar();
+    }
+}
+
+- (void)applicationDidFinishLaunching:(NSNotification *)notification
+{
+    _glfwPostEmptyEventCocoa();
+    [NSApp stop:nil];
+}
+
+- (void)applicationDidHide:(NSNotification *)notification
+{
+    for (int i = 0;  i < _glfw.monitorCount;  i++)
+        _glfwRestoreVideoModeCocoa(_glfw.monitors[i]);
+}
+
+@end // GLFWApplicationDelegate
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void* _glfwLoadLocalVulkanLoaderCocoa(void)
+{
+    CFBundleRef bundle = CFBundleGetMainBundle();
+    if (!bundle)
+        return NULL;
+
+    CFURLRef frameworksUrl = CFBundleCopyPrivateFrameworksURL(bundle);
+    if (!frameworksUrl)
+        return NULL;
+
+    CFURLRef loaderUrl = CFURLCreateCopyAppendingPathComponent(
+        kCFAllocatorDefault, frameworksUrl, CFSTR("libvulkan.1.dylib"), false);
+    if (!loaderUrl)
+    {
+        CFRelease(frameworksUrl);
+        return NULL;
+    }
+
+    char path[PATH_MAX];
+    void* handle = NULL;
+
+    if (CFURLGetFileSystemRepresentation(loaderUrl, true, (UInt8*) path, sizeof(path) - 1))
+        handle = _glfwPlatformLoadModule(path);
+
+    CFRelease(loaderUrl);
+    CFRelease(frameworksUrl);
+    return handle;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwConnectCocoa(int platformID, _GLFWplatform* platform)
+{
+    const _GLFWplatform cocoa =
+    {
+        .platformID = GLFW_PLATFORM_COCOA,
+        .init = _glfwInitCocoa,
+        .terminate = _glfwTerminateCocoa,
+        .getCursorPos = _glfwGetCursorPosCocoa,
+        .setCursorPos = _glfwSetCursorPosCocoa,
+        .setCursorMode = _glfwSetCursorModeCocoa,
+        .setRawMouseMotion = _glfwSetRawMouseMotionCocoa,
+        .rawMouseMotionSupported = _glfwRawMouseMotionSupportedCocoa,
+        .createCursor = _glfwCreateCursorCocoa,
+        .createStandardCursor = _glfwCreateStandardCursorCocoa,
+        .destroyCursor = _glfwDestroyCursorCocoa,
+        .setCursor = _glfwSetCursorCocoa,
+        .getScancodeName = _glfwGetScancodeNameCocoa,
+        .getKeyScancode = _glfwGetKeyScancodeCocoa,
+        .setClipboardString = _glfwSetClipboardStringCocoa,
+        .getClipboardString = _glfwGetClipboardStringCocoa,
+        .initJoysticks = _glfwInitJoysticksCocoa,
+        .terminateJoysticks = _glfwTerminateJoysticksCocoa,
+        .pollJoystick = _glfwPollJoystickCocoa,
+        .getMappingName = _glfwGetMappingNameCocoa,
+        .updateGamepadGUID = _glfwUpdateGamepadGUIDCocoa,
+        .freeMonitor = _glfwFreeMonitorCocoa,
+        .getMonitorPos = _glfwGetMonitorPosCocoa,
+        .getMonitorContentScale = _glfwGetMonitorContentScaleCocoa,
+        .getMonitorWorkarea = _glfwGetMonitorWorkareaCocoa,
+        .getVideoModes = _glfwGetVideoModesCocoa,
+        .getVideoMode = _glfwGetVideoModeCocoa,
+        .getGammaRamp = _glfwGetGammaRampCocoa,
+        .setGammaRamp = _glfwSetGammaRampCocoa,
+        .createWindow = _glfwCreateWindowCocoa,
+        .destroyWindow = _glfwDestroyWindowCocoa,
+        .setWindowTitle = _glfwSetWindowTitleCocoa,
+        .setWindowIcon = _glfwSetWindowIconCocoa,
+        .getWindowPos = _glfwGetWindowPosCocoa,
+        .setWindowPos = _glfwSetWindowPosCocoa,
+        .getWindowSize = _glfwGetWindowSizeCocoa,
+        .setWindowSize = _glfwSetWindowSizeCocoa,
+        .setWindowSizeLimits = _glfwSetWindowSizeLimitsCocoa,
+        .setWindowAspectRatio = _glfwSetWindowAspectRatioCocoa,
+        .getFramebufferSize = _glfwGetFramebufferSizeCocoa,
+        .getWindowFrameSize = _glfwGetWindowFrameSizeCocoa,
+        .getWindowContentScale = _glfwGetWindowContentScaleCocoa,
+        .iconifyWindow = _glfwIconifyWindowCocoa,
+        .restoreWindow = _glfwRestoreWindowCocoa,
+        .maximizeWindow = _glfwMaximizeWindowCocoa,
+        .showWindow = _glfwShowWindowCocoa,
+        .hideWindow = _glfwHideWindowCocoa,
+        .requestWindowAttention = _glfwRequestWindowAttentionCocoa,
+        .focusWindow = _glfwFocusWindowCocoa,
+        .setWindowMonitor = _glfwSetWindowMonitorCocoa,
+        .windowFocused = _glfwWindowFocusedCocoa,
+        .windowIconified = _glfwWindowIconifiedCocoa,
+        .windowVisible = _glfwWindowVisibleCocoa,
+        .windowMaximized = _glfwWindowMaximizedCocoa,
+        .windowHovered = _glfwWindowHoveredCocoa,
+        .framebufferTransparent = _glfwFramebufferTransparentCocoa,
+        .getWindowOpacity = _glfwGetWindowOpacityCocoa,
+        .setWindowResizable = _glfwSetWindowResizableCocoa,
+        .setWindowDecorated = _glfwSetWindowDecoratedCocoa,
+        .setWindowFloating = _glfwSetWindowFloatingCocoa,
+        .setWindowOpacity = _glfwSetWindowOpacityCocoa,
+        .setWindowMousePassthrough = _glfwSetWindowMousePassthroughCocoa,
+        .pollEvents = _glfwPollEventsCocoa,
+        .waitEvents = _glfwWaitEventsCocoa,
+        .waitEventsTimeout = _glfwWaitEventsTimeoutCocoa,
+        .postEmptyEvent = _glfwPostEmptyEventCocoa,
+        .getEGLPlatform = _glfwGetEGLPlatformCocoa,
+        .getEGLNativeDisplay = _glfwGetEGLNativeDisplayCocoa,
+        .getEGLNativeWindow = _glfwGetEGLNativeWindowCocoa,
+        .getRequiredInstanceExtensions = _glfwGetRequiredInstanceExtensionsCocoa,
+        .getPhysicalDevicePresentationSupport = _glfwGetPhysicalDevicePresentationSupportCocoa,
+        .createWindowSurface = _glfwCreateWindowSurfaceCocoa
+    };
+
+    *platform = cocoa;
+    return GLFW_TRUE;
+}
+
+int _glfwInitCocoa(void)
+{
+    @autoreleasepool {
+
+    _glfw.ns.helper = [[GLFWHelper alloc] init];
+
+    [NSThread detachNewThreadSelector:@selector(doNothing:)
+                             toTarget:_glfw.ns.helper
+                           withObject:nil];
+
+    [NSApplication sharedApplication];
+
+    _glfw.ns.delegate = [[GLFWApplicationDelegate alloc] init];
+    if (_glfw.ns.delegate == nil)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Failed to create application delegate");
+        return GLFW_FALSE;
+    }
+
+    [NSApp setDelegate:_glfw.ns.delegate];
+
+    NSEvent* (^block)(NSEvent*) = ^ NSEvent* (NSEvent* event)
+    {
+        if ([event modifierFlags] & NSEventModifierFlagCommand)
+            [[NSApp keyWindow] sendEvent:event];
+
+        return event;
+    };
+
+    _glfw.ns.keyUpMonitor =
+        [NSEvent addLocalMonitorForEventsMatchingMask:NSEventMaskKeyUp
+                                              handler:block];
+
+    if (_glfw.hints.init.ns.chdir)
+        changeToResourcesDirectory();
+
+    // Press and Hold prevents some keys from emitting repeated characters
+    NSDictionary* defaults = @{@"ApplePressAndHoldEnabled":@NO};
+    [[NSUserDefaults standardUserDefaults] registerDefaults:defaults];
+
+    [[NSNotificationCenter defaultCenter]
+        addObserver:_glfw.ns.helper
+           selector:@selector(selectedKeyboardInputSourceChanged:)
+               name:NSTextInputContextKeyboardSelectionDidChangeNotification
+             object:nil];
+
+    createKeyTablesCocoa();
+
+    _glfw.ns.eventSource = CGEventSourceCreate(kCGEventSourceStateHIDSystemState);
+    if (!_glfw.ns.eventSource)
+        return GLFW_FALSE;
+
+    CGEventSourceSetLocalEventsSuppressionInterval(_glfw.ns.eventSource, 0.0);
+
+    if (!initializeTIS())
+        return GLFW_FALSE;
+
+    _glfwPollMonitorsCocoa();
+
+    if (![[NSRunningApplication currentApplication] isFinishedLaunching])
+        [NSApp run];
+
+    // In case we are unbundled, make us a proper UI application
+    if (_glfw.hints.init.ns.menubar)
+        [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
+
+    return GLFW_TRUE;
+
+    } // autoreleasepool
+}
+
+void _glfwTerminateCocoa(void)
+{
+    @autoreleasepool {
+
+    if (_glfw.ns.inputSource)
+    {
+        CFRelease(_glfw.ns.inputSource);
+        _glfw.ns.inputSource = NULL;
+        _glfw.ns.unicodeData = nil;
+    }
+
+    if (_glfw.ns.eventSource)
+    {
+        CFRelease(_glfw.ns.eventSource);
+        _glfw.ns.eventSource = NULL;
+    }
+
+    if (_glfw.ns.delegate)
+    {
+        [NSApp setDelegate:nil];
+        [_glfw.ns.delegate release];
+        _glfw.ns.delegate = nil;
+    }
+
+    if (_glfw.ns.helper)
+    {
+        [[NSNotificationCenter defaultCenter]
+            removeObserver:_glfw.ns.helper
+                      name:NSTextInputContextKeyboardSelectionDidChangeNotification
+                    object:nil];
+        [[NSNotificationCenter defaultCenter]
+            removeObserver:_glfw.ns.helper];
+        [_glfw.ns.helper release];
+        _glfw.ns.helper = nil;
+    }
+
+    if (_glfw.ns.keyUpMonitor)
+        [NSEvent removeMonitor:_glfw.ns.keyUpMonitor];
+
+    _glfw_free(_glfw.ns.clipboardString);
+
+    _glfwTerminateNSGL();
+    _glfwTerminateEGL();
+    _glfwTerminateOSMesa();
+
+    } // autoreleasepool
+}
+
+#endif // _GLFW_COCOA
+

raylib/external/glfw/src/cocoa_joystick.h

@@ -0,0 +1,49 @@
+//========================================================================
+// GLFW 3.4 Cocoa - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <IOKit/IOKitLib.h>
+#include <IOKit/IOCFPlugIn.h>
+#include <IOKit/hid/IOHIDKeys.h>
+
+#define GLFW_COCOA_JOYSTICK_STATE         _GLFWjoystickNS ns;
+#define GLFW_COCOA_LIBRARY_JOYSTICK_STATE
+
+// Cocoa-specific per-joystick data
+//
+typedef struct _GLFWjoystickNS
+{
+    IOHIDDeviceRef      device;
+    CFMutableArrayRef   axes;
+    CFMutableArrayRef   buttons;
+    CFMutableArrayRef   hats;
+} _GLFWjoystickNS;
+
+GLFWbool _glfwInitJoysticksCocoa(void);
+void _glfwTerminateJoysticksCocoa(void);
+GLFWbool _glfwPollJoystickCocoa(_GLFWjoystick* js, int mode);
+const char* _glfwGetMappingNameCocoa(void);
+void _glfwUpdateGamepadGUIDCocoa(char* guid);
+

raylib/external/glfw/src/cocoa_joystick.m

@@ -0,0 +1,485 @@
+//========================================================================
+// GLFW 3.4 Cocoa - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
+// Copyright (c) 2012 Torsten Walluhn <tw@mad-cad.net>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_COCOA)
+
+#include <unistd.h>
+#include <ctype.h>
+#include <string.h>
+
+#include <mach/mach.h>
+#include <mach/mach_error.h>
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <Kernel/IOKit/hidsystem/IOHIDUsageTables.h>
+
+
+// Joystick element information
+//
+typedef struct _GLFWjoyelementNS
+{
+    IOHIDElementRef native;
+    uint32_t        usage;
+    int             index;
+    long            minimum;
+    long            maximum;
+
+} _GLFWjoyelementNS;
+
+
+// Returns the value of the specified element of the specified joystick
+//
+static long getElementValue(_GLFWjoystick* js, _GLFWjoyelementNS* element)
+{
+    IOHIDValueRef valueRef;
+    long value = 0;
+
+    if (js->ns.device)
+    {
+        if (IOHIDDeviceGetValue(js->ns.device,
+                                element->native,
+                                &valueRef) == kIOReturnSuccess)
+        {
+            value = IOHIDValueGetIntegerValue(valueRef);
+        }
+    }
+
+    return value;
+}
+
+// Comparison function for matching the SDL element order
+//
+static CFComparisonResult compareElements(const void* fp,
+                                          const void* sp,
+                                          void* user)
+{
+    const _GLFWjoyelementNS* fe = fp;
+    const _GLFWjoyelementNS* se = sp;
+    if (fe->usage < se->usage)
+        return kCFCompareLessThan;
+    if (fe->usage > se->usage)
+        return kCFCompareGreaterThan;
+    if (fe->index < se->index)
+        return kCFCompareLessThan;
+    if (fe->index > se->index)
+        return kCFCompareGreaterThan;
+    return kCFCompareEqualTo;
+}
+
+// Removes the specified joystick
+//
+static void closeJoystick(_GLFWjoystick* js)
+{
+    _glfwInputJoystick(js, GLFW_DISCONNECTED);
+
+    for (int i = 0;  i < CFArrayGetCount(js->ns.axes);  i++)
+        _glfw_free((void*) CFArrayGetValueAtIndex(js->ns.axes, i));
+    CFRelease(js->ns.axes);
+
+    for (int i = 0;  i < CFArrayGetCount(js->ns.buttons);  i++)
+        _glfw_free((void*) CFArrayGetValueAtIndex(js->ns.buttons, i));
+    CFRelease(js->ns.buttons);
+
+    for (int i = 0;  i < CFArrayGetCount(js->ns.hats);  i++)
+        _glfw_free((void*) CFArrayGetValueAtIndex(js->ns.hats, i));
+    CFRelease(js->ns.hats);
+
+    _glfwFreeJoystick(js);
+}
+
+// Callback for user-initiated joystick addition
+//
+static void matchCallback(void* context,
+                          IOReturn result,
+                          void* sender,
+                          IOHIDDeviceRef device)
+{
+    int jid;
+    char name[256];
+    char guid[33];
+    CFTypeRef property;
+    uint32_t vendor = 0, product = 0, version = 0;
+    _GLFWjoystick* js;
+    CFMutableArrayRef axes, buttons, hats;
+
+    for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        if (_glfw.joysticks[jid].ns.device == device)
+            return;
+    }
+
+    CFArrayRef elements =
+        IOHIDDeviceCopyMatchingElements(device, NULL, kIOHIDOptionsTypeNone);
+
+    // It is reportedly possible for this to fail on macOS 13 Ventura
+    // if the application does not have input monitoring permissions
+    if (!elements)
+        return;
+
+    axes    = CFArrayCreateMutable(NULL, 0, NULL);
+    buttons = CFArrayCreateMutable(NULL, 0, NULL);
+    hats    = CFArrayCreateMutable(NULL, 0, NULL);
+
+    property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey));
+    if (property)
+    {
+        CFStringGetCString(property,
+                           name,
+                           sizeof(name),
+                           kCFStringEncodingUTF8);
+    }
+    else
+        strncpy(name, "Unknown", sizeof(name));
+
+    property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDVendorIDKey));
+    if (property)
+        CFNumberGetValue(property, kCFNumberSInt32Type, &vendor);
+
+    property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductIDKey));
+    if (property)
+        CFNumberGetValue(property, kCFNumberSInt32Type, &product);
+
+    property = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDVersionNumberKey));
+    if (property)
+        CFNumberGetValue(property, kCFNumberSInt32Type, &version);
+
+    // Generate a joystick GUID that matches the SDL 2.0.5+ one
+    if (vendor && product)
+    {
+        sprintf(guid, "03000000%02x%02x0000%02x%02x0000%02x%02x0000",
+                (uint8_t) vendor, (uint8_t) (vendor >> 8),
+                (uint8_t) product, (uint8_t) (product >> 8),
+                (uint8_t) version, (uint8_t) (version >> 8));
+    }
+    else
+    {
+        sprintf(guid, "05000000%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x00",
+                name[0], name[1], name[2], name[3],
+                name[4], name[5], name[6], name[7],
+                name[8], name[9], name[10]);
+    }
+
+    for (CFIndex i = 0;  i < CFArrayGetCount(elements);  i++)
+    {
+        IOHIDElementRef native = (IOHIDElementRef)
+            CFArrayGetValueAtIndex(elements, i);
+        if (CFGetTypeID(native) != IOHIDElementGetTypeID())
+            continue;
+
+        const IOHIDElementType type = IOHIDElementGetType(native);
+        if ((type != kIOHIDElementTypeInput_Axis) &&
+            (type != kIOHIDElementTypeInput_Button) &&
+            (type != kIOHIDElementTypeInput_Misc))
+        {
+            continue;
+        }
+
+        CFMutableArrayRef target = NULL;
+
+        const uint32_t usage = IOHIDElementGetUsage(native);
+        const uint32_t page = IOHIDElementGetUsagePage(native);
+        if (page == kHIDPage_GenericDesktop)
+        {
+            switch (usage)
+            {
+                case kHIDUsage_GD_X:
+                case kHIDUsage_GD_Y:
+                case kHIDUsage_GD_Z:
+                case kHIDUsage_GD_Rx:
+                case kHIDUsage_GD_Ry:
+                case kHIDUsage_GD_Rz:
+                case kHIDUsage_GD_Slider:
+                case kHIDUsage_GD_Dial:
+                case kHIDUsage_GD_Wheel:
+                    target = axes;
+                    break;
+                case kHIDUsage_GD_Hatswitch:
+                    target = hats;
+                    break;
+                case kHIDUsage_GD_DPadUp:
+                case kHIDUsage_GD_DPadRight:
+                case kHIDUsage_GD_DPadDown:
+                case kHIDUsage_GD_DPadLeft:
+                case kHIDUsage_GD_SystemMainMenu:
+                case kHIDUsage_GD_Select:
+                case kHIDUsage_GD_Start:
+                    target = buttons;
+                    break;
+            }
+        }
+        else if (page == kHIDPage_Simulation)
+        {
+            switch (usage)
+            {
+                case kHIDUsage_Sim_Accelerator:
+                case kHIDUsage_Sim_Brake:
+                case kHIDUsage_Sim_Throttle:
+                case kHIDUsage_Sim_Rudder:
+                case kHIDUsage_Sim_Steering:
+                    target = axes;
+                    break;
+            }
+        }
+        else if (page == kHIDPage_Button || page == kHIDPage_Consumer)
+            target = buttons;
+
+        if (target)
+        {
+            _GLFWjoyelementNS* element = _glfw_calloc(1, sizeof(_GLFWjoyelementNS));
+            element->native  = native;
+            element->usage   = usage;
+            element->index   = (int) CFArrayGetCount(target);
+            element->minimum = IOHIDElementGetLogicalMin(native);
+            element->maximum = IOHIDElementGetLogicalMax(native);
+            CFArrayAppendValue(target, element);
+        }
+    }
+
+    CFRelease(elements);
+
+    CFArraySortValues(axes, CFRangeMake(0, CFArrayGetCount(axes)),
+                      compareElements, NULL);
+    CFArraySortValues(buttons, CFRangeMake(0, CFArrayGetCount(buttons)),
+                      compareElements, NULL);
+    CFArraySortValues(hats, CFRangeMake(0, CFArrayGetCount(hats)),
+                      compareElements, NULL);
+
+    js = _glfwAllocJoystick(name, guid,
+                            (int) CFArrayGetCount(axes),
+                            (int) CFArrayGetCount(buttons),
+                            (int) CFArrayGetCount(hats));
+
+    js->ns.device  = device;
+    js->ns.axes    = axes;
+    js->ns.buttons = buttons;
+    js->ns.hats    = hats;
+
+    _glfwInputJoystick(js, GLFW_CONNECTED);
+}
+
+// Callback for user-initiated joystick removal
+//
+static void removeCallback(void* context,
+                           IOReturn result,
+                           void* sender,
+                           IOHIDDeviceRef device)
+{
+    for (int jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        if (_glfw.joysticks[jid].connected && _glfw.joysticks[jid].ns.device == device)
+        {
+            closeJoystick(&_glfw.joysticks[jid]);
+            break;
+        }
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitJoysticksCocoa(void)
+{
+    CFMutableArrayRef matching;
+    const long usages[] =
+    {
+        kHIDUsage_GD_Joystick,
+        kHIDUsage_GD_GamePad,
+        kHIDUsage_GD_MultiAxisController
+    };
+
+    _glfw.ns.hidManager = IOHIDManagerCreate(kCFAllocatorDefault,
+                                             kIOHIDOptionsTypeNone);
+
+    matching = CFArrayCreateMutable(kCFAllocatorDefault,
+                                    0,
+                                    &kCFTypeArrayCallBacks);
+    if (!matching)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Cocoa: Failed to create array");
+        return GLFW_FALSE;
+    }
+
+    for (size_t i = 0;  i < sizeof(usages) / sizeof(long);  i++)
+    {
+        const long page = kHIDPage_GenericDesktop;
+
+        CFMutableDictionaryRef dict =
+            CFDictionaryCreateMutable(kCFAllocatorDefault,
+                                      0,
+                                      &kCFTypeDictionaryKeyCallBacks,
+                                      &kCFTypeDictionaryValueCallBacks);
+        if (!dict)
+            continue;
+
+        CFNumberRef pageRef = CFNumberCreate(kCFAllocatorDefault,
+                                             kCFNumberLongType,
+                                             &page);
+        CFNumberRef usageRef = CFNumberCreate(kCFAllocatorDefault,
+                                              kCFNumberLongType,
+                                              &usages[i]);
+        if (pageRef && usageRef)
+        {
+            CFDictionarySetValue(dict,
+                                 CFSTR(kIOHIDDeviceUsagePageKey),
+                                 pageRef);
+            CFDictionarySetValue(dict,
+                                 CFSTR(kIOHIDDeviceUsageKey),
+                                 usageRef);
+            CFArrayAppendValue(matching, dict);
+        }
+
+        if (pageRef)
+            CFRelease(pageRef);
+        if (usageRef)
+            CFRelease(usageRef);
+
+        CFRelease(dict);
+    }
+
+    IOHIDManagerSetDeviceMatchingMultiple(_glfw.ns.hidManager, matching);
+    CFRelease(matching);
+
+    IOHIDManagerRegisterDeviceMatchingCallback(_glfw.ns.hidManager,
+                                               &matchCallback, NULL);
+    IOHIDManagerRegisterDeviceRemovalCallback(_glfw.ns.hidManager,
+                                              &removeCallback, NULL);
+    IOHIDManagerScheduleWithRunLoop(_glfw.ns.hidManager,
+                                    CFRunLoopGetMain(),
+                                    kCFRunLoopDefaultMode);
+    IOHIDManagerOpen(_glfw.ns.hidManager, kIOHIDOptionsTypeNone);
+
+    // Execute the run loop once in order to register any initially-attached
+    // joysticks
+    CFRunLoopRunInMode(kCFRunLoopDefaultMode, 0, false);
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateJoysticksCocoa(void)
+{
+    for (int jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        if (_glfw.joysticks[jid].connected)
+            closeJoystick(&_glfw.joysticks[jid]);
+    }
+
+    if (_glfw.ns.hidManager)
+    {
+        CFRelease(_glfw.ns.hidManager);
+        _glfw.ns.hidManager = NULL;
+    }
+}
+
+
+GLFWbool _glfwPollJoystickCocoa(_GLFWjoystick* js, int mode)
+{
+    if (mode & _GLFW_POLL_AXES)
+    {
+        for (CFIndex i = 0;  i < CFArrayGetCount(js->ns.axes);  i++)
+        {
+            _GLFWjoyelementNS* axis = (_GLFWjoyelementNS*)
+                CFArrayGetValueAtIndex(js->ns.axes, i);
+
+            const long raw = getElementValue(js, axis);
+            // Perform auto calibration
+            if (raw < axis->minimum)
+                axis->minimum = raw;
+            if (raw > axis->maximum)
+                axis->maximum = raw;
+
+            const long size = axis->maximum - axis->minimum;
+            if (size == 0)
+                _glfwInputJoystickAxis(js, (int) i, 0.f);
+            else
+            {
+                const float value = (2.f * (raw - axis->minimum) / size) - 1.f;
+                _glfwInputJoystickAxis(js, (int) i, value);
+            }
+        }
+    }
+
+    if (mode & _GLFW_POLL_BUTTONS)
+    {
+        for (CFIndex i = 0;  i < CFArrayGetCount(js->ns.buttons);  i++)
+        {
+            _GLFWjoyelementNS* button = (_GLFWjoyelementNS*)
+                CFArrayGetValueAtIndex(js->ns.buttons, i);
+            const char value = getElementValue(js, button) - button->minimum;
+            const int state = (value > 0) ? GLFW_PRESS : GLFW_RELEASE;
+            _glfwInputJoystickButton(js, (int) i, state);
+        }
+
+        for (CFIndex i = 0;  i < CFArrayGetCount(js->ns.hats);  i++)
+        {
+            const int states[9] =
+            {
+                GLFW_HAT_UP,
+                GLFW_HAT_RIGHT_UP,
+                GLFW_HAT_RIGHT,
+                GLFW_HAT_RIGHT_DOWN,
+                GLFW_HAT_DOWN,
+                GLFW_HAT_LEFT_DOWN,
+                GLFW_HAT_LEFT,
+                GLFW_HAT_LEFT_UP,
+                GLFW_HAT_CENTERED
+            };
+
+            _GLFWjoyelementNS* hat = (_GLFWjoyelementNS*)
+                CFArrayGetValueAtIndex(js->ns.hats, i);
+            long state = getElementValue(js, hat) - hat->minimum;
+            if (state < 0 || state > 8)
+                state = 8;
+
+            _glfwInputJoystickHat(js, (int) i, states[state]);
+        }
+    }
+
+    return js->connected;
+}
+
+const char* _glfwGetMappingNameCocoa(void)
+{
+    return "Mac OS X";
+}
+
+void _glfwUpdateGamepadGUIDCocoa(char* guid)
+{
+    if ((strncmp(guid + 4, "000000000000", 12) == 0) &&
+        (strncmp(guid + 20, "000000000000", 12) == 0))
+    {
+        char original[33];
+        strncpy(original, guid, sizeof(original) - 1);
+        sprintf(guid, "03000000%.4s0000%.4s000000000000",
+                original, original + 16);
+    }
+}
+
+#endif // _GLFW_COCOA
+

raylib/external/glfw/src/cocoa_monitor.m

@@ -0,0 +1,644 @@
+//========================================================================
+// GLFW 3.4 macOS (modified for raylib) - www.glfw.org; www.raylib.com
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+// Copyright (c) 2024 M374LX <wilsalx@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_COCOA)
+
+#include <stdlib.h>
+#include <limits.h>
+#include <math.h>
+
+#include <IOKit/graphics/IOGraphicsLib.h>
+#include <ApplicationServices/ApplicationServices.h>
+
+
+// Get the name of the specified display, or NULL
+//
+static char* getMonitorName(CGDirectDisplayID displayID, NSScreen* screen)
+{
+    // IOKit doesn't work on Apple Silicon anymore
+    // Luckily, 10.15 introduced -[NSScreen localizedName].
+    // Use it if available, and fall back to IOKit otherwise.
+    if (screen)
+    {
+        if ([screen respondsToSelector:@selector(localizedName)])
+        {
+            NSString* name = [screen valueForKey:@"localizedName"];
+            if (name)
+                return _glfw_strdup([name UTF8String]);
+        }
+    }
+
+    io_iterator_t it;
+    io_service_t service;
+    CFDictionaryRef info;
+
+    if (IOServiceGetMatchingServices(MACH_PORT_NULL,
+                                     IOServiceMatching("IODisplayConnect"),
+                                     &it) != 0)
+    {
+        // This may happen if a desktop Mac is running headless
+        return _glfw_strdup("Display");
+    }
+
+    while ((service = IOIteratorNext(it)) != 0)
+    {
+        info = IODisplayCreateInfoDictionary(service,
+                                             kIODisplayOnlyPreferredName);
+
+        CFNumberRef vendorIDRef =
+            CFDictionaryGetValue(info, CFSTR(kDisplayVendorID));
+        CFNumberRef productIDRef =
+            CFDictionaryGetValue(info, CFSTR(kDisplayProductID));
+        if (!vendorIDRef || !productIDRef)
+        {
+            CFRelease(info);
+            continue;
+        }
+
+        unsigned int vendorID, productID;
+        CFNumberGetValue(vendorIDRef, kCFNumberIntType, &vendorID);
+        CFNumberGetValue(productIDRef, kCFNumberIntType, &productID);
+
+        if (CGDisplayVendorNumber(displayID) == vendorID &&
+            CGDisplayModelNumber(displayID) == productID)
+        {
+            // Info dictionary is used and freed below
+            break;
+        }
+
+        CFRelease(info);
+    }
+
+    IOObjectRelease(it);
+
+    if (!service)
+        return _glfw_strdup("Display");
+
+    CFDictionaryRef names =
+        CFDictionaryGetValue(info, CFSTR(kDisplayProductName));
+
+    CFStringRef nameRef;
+
+    if (!names || !CFDictionaryGetValueIfPresent(names, CFSTR("en_US"),
+                                                 (const void**) &nameRef))
+    {
+        // This may happen if a desktop Mac is running headless
+        CFRelease(info);
+        return _glfw_strdup("Display");
+    }
+
+    const CFIndex size =
+        CFStringGetMaximumSizeForEncoding(CFStringGetLength(nameRef),
+                                          kCFStringEncodingUTF8);
+    char* name = _glfw_calloc(size + 1, 1);
+    CFStringGetCString(nameRef, name, size, kCFStringEncodingUTF8);
+
+    CFRelease(info);
+    return name;
+}
+
+// Check whether the display mode should be included in enumeration
+//
+static GLFWbool modeIsGood(CGDisplayModeRef mode)
+{
+    uint32_t flags = CGDisplayModeGetIOFlags(mode);
+
+    if (!(flags & kDisplayModeValidFlag) || !(flags & kDisplayModeSafeFlag))
+        return GLFW_FALSE;
+    if (flags & kDisplayModeInterlacedFlag)
+        return GLFW_FALSE;
+    if (flags & kDisplayModeStretchedFlag)
+        return GLFW_FALSE;
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED <= 101100
+    CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
+    if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) &&
+        CFStringCompare(format, CFSTR(IO32BitDirectPixels), 0))
+    {
+        CFRelease(format);
+        return GLFW_FALSE;
+    }
+
+    CFRelease(format);
+#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
+    return GLFW_TRUE;
+}
+
+// Convert Core Graphics display mode to GLFW video mode
+//
+static GLFWvidmode vidmodeFromCGDisplayMode(CGDisplayModeRef mode,
+                                            double fallbackRefreshRate)
+{
+    GLFWvidmode result;
+    result.width = (int) CGDisplayModeGetWidth(mode);
+    result.height = (int) CGDisplayModeGetHeight(mode);
+    result.refreshRate = (int) round(CGDisplayModeGetRefreshRate(mode));
+
+    if (result.refreshRate == 0)
+        result.refreshRate = (int) round(fallbackRefreshRate);
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED <= 101100
+    CFStringRef format = CGDisplayModeCopyPixelEncoding(mode);
+    if (CFStringCompare(format, CFSTR(IO16BitDirectPixels), 0) == 0)
+    {
+        result.redBits = 5;
+        result.greenBits = 5;
+        result.blueBits = 5;
+    }
+    else
+#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
+    {
+        result.redBits = 8;
+        result.greenBits = 8;
+        result.blueBits = 8;
+    }
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED <= 101100
+    CFRelease(format);
+#endif /* MAC_OS_X_VERSION_MAX_ALLOWED */
+    return result;
+}
+
+// Starts reservation for display fading
+//
+static CGDisplayFadeReservationToken beginFadeReservation(void)
+{
+    CGDisplayFadeReservationToken token = kCGDisplayFadeReservationInvalidToken;
+
+    if (CGAcquireDisplayFadeReservation(5, &token) == kCGErrorSuccess)
+    {
+        CGDisplayFade(token, 0.3,
+                      kCGDisplayBlendNormal,
+                      kCGDisplayBlendSolidColor,
+                      0.0, 0.0, 0.0,
+                      TRUE);
+    }
+
+    return token;
+}
+
+// Ends reservation for display fading
+//
+static void endFadeReservation(CGDisplayFadeReservationToken token)
+{
+    if (token != kCGDisplayFadeReservationInvalidToken)
+    {
+        CGDisplayFade(token, 0.5,
+                      kCGDisplayBlendSolidColor,
+                      kCGDisplayBlendNormal,
+                      0.0, 0.0, 0.0,
+                      FALSE);
+        CGReleaseDisplayFadeReservation(token);
+    }
+}
+
+// Returns the display refresh rate queried from the I/O registry
+//
+static double getFallbackRefreshRate(CGDirectDisplayID displayID)
+{
+    double refreshRate = 60.0;
+
+    io_iterator_t it;
+    io_service_t service;
+
+    if (IOServiceGetMatchingServices(MACH_PORT_NULL,
+                                     IOServiceMatching("IOFramebuffer"),
+                                     &it) != 0)
+    {
+        return refreshRate;
+    }
+
+    while ((service = IOIteratorNext(it)) != 0)
+    {
+        const CFNumberRef indexRef =
+            IORegistryEntryCreateCFProperty(service,
+                                            CFSTR("IOFramebufferOpenGLIndex"),
+                                            kCFAllocatorDefault,
+                                            kNilOptions);
+        if (!indexRef)
+            continue;
+
+        uint32_t index = 0;
+        CFNumberGetValue(indexRef, kCFNumberIntType, &index);
+        CFRelease(indexRef);
+
+        if (CGOpenGLDisplayMaskToDisplayID(1 << index) != displayID)
+            continue;
+
+        const CFNumberRef clockRef =
+            IORegistryEntryCreateCFProperty(service,
+                                            CFSTR("IOFBCurrentPixelClock"),
+                                            kCFAllocatorDefault,
+                                            kNilOptions);
+        const CFNumberRef countRef =
+            IORegistryEntryCreateCFProperty(service,
+                                            CFSTR("IOFBCurrentPixelCount"),
+                                            kCFAllocatorDefault,
+                                            kNilOptions);
+
+        uint32_t clock = 0, count = 0;
+
+        if (clockRef)
+        {
+            CFNumberGetValue(clockRef, kCFNumberIntType, &clock);
+            CFRelease(clockRef);
+        }
+
+        if (countRef)
+        {
+            CFNumberGetValue(countRef, kCFNumberIntType, &count);
+            CFRelease(countRef);
+        }
+
+        if (clock > 0 && count > 0)
+            refreshRate = clock / (double) count;
+
+        break;
+    }
+
+    IOObjectRelease(it);
+    return refreshRate;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Poll for changes in the set of connected monitors
+//
+void _glfwPollMonitorsCocoa(void)
+{
+    uint32_t displayCount;
+    CGGetOnlineDisplayList(0, NULL, &displayCount);
+    CGDirectDisplayID* displays = _glfw_calloc(displayCount, sizeof(CGDirectDisplayID));
+    CGGetOnlineDisplayList(displayCount, displays, &displayCount);
+
+    for (int i = 0;  i < _glfw.monitorCount;  i++)
+        _glfw.monitors[i]->ns.screen = nil;
+
+    _GLFWmonitor** disconnected = NULL;
+    uint32_t disconnectedCount = _glfw.monitorCount;
+    if (disconnectedCount)
+    {
+        disconnected = _glfw_calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*));
+        memcpy(disconnected,
+               _glfw.monitors,
+               _glfw.monitorCount * sizeof(_GLFWmonitor*));
+    }
+
+    for (uint32_t i = 0;  i < displayCount;  i++)
+    {
+        if (CGDisplayIsAsleep(displays[i]))
+            continue;
+
+        const uint32_t unitNumber = CGDisplayUnitNumber(displays[i]);
+        NSScreen* screen = nil;
+
+        for (screen in [NSScreen screens])
+        {
+            NSNumber* screenNumber = [screen deviceDescription][@"NSScreenNumber"];
+
+            // HACK: Compare unit numbers instead of display IDs to work around
+            //       display replacement on machines with automatic graphics
+            //       switching
+            if (CGDisplayUnitNumber([screenNumber unsignedIntValue]) == unitNumber)
+                break;
+        }
+
+        // HACK: Compare unit numbers instead of display IDs to work around
+        //       display replacement on machines with automatic graphics
+        //       switching
+        uint32_t j;
+        for (j = 0;  j < disconnectedCount;  j++)
+        {
+            if (disconnected[j] && disconnected[j]->ns.unitNumber == unitNumber)
+            {
+                disconnected[j]->ns.screen = screen;
+                disconnected[j] = NULL;
+                break;
+            }
+        }
+
+        if (j < disconnectedCount)
+            continue;
+
+        const CGSize size = CGDisplayScreenSize(displays[i]);
+        char* name = getMonitorName(displays[i], screen);
+        if (!name)
+            continue;
+
+        _GLFWmonitor* monitor = _glfwAllocMonitor(name, size.width, size.height);
+        monitor->ns.displayID  = displays[i];
+        monitor->ns.unitNumber = unitNumber;
+        monitor->ns.screen     = screen;
+
+        _glfw_free(name);
+
+        CGDisplayModeRef mode = CGDisplayCopyDisplayMode(displays[i]);
+        if (CGDisplayModeGetRefreshRate(mode) == 0.0)
+            monitor->ns.fallbackRefreshRate = getFallbackRefreshRate(displays[i]);
+        CGDisplayModeRelease(mode);
+
+        _glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_LAST);
+    }
+
+    for (uint32_t i = 0;  i < disconnectedCount;  i++)
+    {
+        if (disconnected[i])
+            _glfwInputMonitor(disconnected[i], GLFW_DISCONNECTED, 0);
+    }
+
+    _glfw_free(disconnected);
+    _glfw_free(displays);
+}
+
+// Change the current video mode
+//
+void _glfwSetVideoModeCocoa(_GLFWmonitor* monitor, const GLFWvidmode* desired)
+{
+    GLFWvidmode current;
+    _glfwGetVideoModeCocoa(monitor, &current);
+
+    const GLFWvidmode* best = _glfwChooseVideoMode(monitor, desired);
+    if (_glfwCompareVideoModes(&current, best) == 0)
+        return;
+
+    CFArrayRef modes = CGDisplayCopyAllDisplayModes(monitor->ns.displayID, NULL);
+    const CFIndex count = CFArrayGetCount(modes);
+    CGDisplayModeRef native = NULL;
+
+    for (CFIndex i = 0;  i < count;  i++)
+    {
+        CGDisplayModeRef dm = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
+        if (!modeIsGood(dm))
+            continue;
+
+        const GLFWvidmode mode =
+            vidmodeFromCGDisplayMode(dm, monitor->ns.fallbackRefreshRate);
+        if (_glfwCompareVideoModes(best, &mode) == 0)
+        {
+            native = dm;
+            break;
+        }
+    }
+
+    if (native)
+    {
+        if (monitor->ns.previousMode == NULL)
+            monitor->ns.previousMode = CGDisplayCopyDisplayMode(monitor->ns.displayID);
+
+        CGDisplayFadeReservationToken token = beginFadeReservation();
+        CGDisplaySetDisplayMode(monitor->ns.displayID, native, NULL);
+        endFadeReservation(token);
+    }
+
+    CFRelease(modes);
+}
+
+// Restore the previously saved (original) video mode
+//
+void _glfwRestoreVideoModeCocoa(_GLFWmonitor* monitor)
+{
+    if (monitor->ns.previousMode)
+    {
+        CGDisplayFadeReservationToken token = beginFadeReservation();
+        CGDisplaySetDisplayMode(monitor->ns.displayID,
+                                monitor->ns.previousMode, NULL);
+        endFadeReservation(token);
+
+        CGDisplayModeRelease(monitor->ns.previousMode);
+        monitor->ns.previousMode = NULL;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwFreeMonitorCocoa(_GLFWmonitor* monitor)
+{
+}
+
+void _glfwGetMonitorPosCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    @autoreleasepool {
+
+    const CGRect bounds = CGDisplayBounds(monitor->ns.displayID);
+
+    if (xpos)
+        *xpos = (int) bounds.origin.x;
+    if (ypos)
+        *ypos = (int) bounds.origin.y;
+
+    } // autoreleasepool
+}
+
+void _glfwGetMonitorContentScaleCocoa(_GLFWmonitor* monitor,
+                                      float* xscale, float* yscale)
+{
+    @autoreleasepool {
+
+    if (!monitor->ns.screen)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Cannot query content scale without screen");
+    }
+
+    const NSRect points = [monitor->ns.screen frame];
+    const NSRect pixels = [monitor->ns.screen convertRectToBacking:points];
+
+    if (xscale)
+        *xscale = (float) (pixels.size.width / points.size.width);
+    if (yscale)
+        *yscale = (float) (pixels.size.height / points.size.height);
+
+    } // autoreleasepool
+}
+
+void _glfwGetMonitorWorkareaCocoa(_GLFWmonitor* monitor,
+                                  int* xpos, int* ypos,
+                                  int* width, int* height)
+{
+    @autoreleasepool {
+
+    if (!monitor->ns.screen)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Cocoa: Cannot query workarea without screen");
+    }
+
+    const NSRect frameRect = [monitor->ns.screen visibleFrame];
+
+    if (xpos)
+        *xpos = frameRect.origin.x;
+    if (ypos)
+        *ypos = _glfwTransformYCocoa(frameRect.origin.y + frameRect.size.height - 1);
+    if (width)
+        *width = frameRect.size.width;
+    if (height)
+        *height = frameRect.size.height;
+
+    } // autoreleasepool
+}
+
+GLFWvidmode* _glfwGetVideoModesCocoa(_GLFWmonitor* monitor, int* count)
+{
+    @autoreleasepool {
+
+    *count = 0;
+
+    CFArrayRef modes = CGDisplayCopyAllDisplayModes(monitor->ns.displayID, NULL);
+    const CFIndex found = CFArrayGetCount(modes);
+    GLFWvidmode* result = _glfw_calloc(found, sizeof(GLFWvidmode));
+
+    for (CFIndex i = 0;  i < found;  i++)
+    {
+        CGDisplayModeRef dm = (CGDisplayModeRef) CFArrayGetValueAtIndex(modes, i);
+        if (!modeIsGood(dm))
+            continue;
+
+        const GLFWvidmode mode =
+            vidmodeFromCGDisplayMode(dm, monitor->ns.fallbackRefreshRate);
+        CFIndex j;
+
+        for (j = 0;  j < *count;  j++)
+        {
+            if (_glfwCompareVideoModes(result + j, &mode) == 0)
+                break;
+        }
+
+        // Skip duplicate modes
+        if (j < *count)
+            continue;
+
+        (*count)++;
+        result[*count - 1] = mode;
+    }
+
+    CFRelease(modes);
+    return result;
+
+    } // autoreleasepool
+}
+
+GLFWbool _glfwGetVideoModeCocoa(_GLFWmonitor* monitor, GLFWvidmode *mode)
+{
+    @autoreleasepool {
+
+    CGDisplayModeRef native = CGDisplayCopyDisplayMode(monitor->ns.displayID);
+    if (!native)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Cocoa: Failed to query display mode");
+        return GLFW_FALSE;
+    }
+
+    *mode = vidmodeFromCGDisplayMode(native, monitor->ns.fallbackRefreshRate);
+    CGDisplayModeRelease(native);
+    return GLFW_TRUE;
+
+    } // autoreleasepool
+}
+
+GLFWbool _glfwGetGammaRampCocoa(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    @autoreleasepool {
+
+    uint32_t size = CGDisplayGammaTableCapacity(monitor->ns.displayID);
+    CGGammaValue* values = _glfw_calloc(size * 3, sizeof(CGGammaValue));
+
+    CGGetDisplayTransferByTable(monitor->ns.displayID,
+                                size,
+                                values,
+                                values + size,
+                                values + size * 2,
+                                &size);
+
+    _glfwAllocGammaArrays(ramp, size);
+
+    for (uint32_t i = 0; i < size; i++)
+    {
+        ramp->red[i]   = (unsigned short) (values[i] * 65535);
+        ramp->green[i] = (unsigned short) (values[i + size] * 65535);
+        ramp->blue[i]  = (unsigned short) (values[i + size * 2] * 65535);
+    }
+
+    _glfw_free(values);
+    return GLFW_TRUE;
+
+    } // autoreleasepool
+}
+
+void _glfwSetGammaRampCocoa(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    @autoreleasepool {
+
+    CGGammaValue* values = _glfw_calloc(ramp->size * 3, sizeof(CGGammaValue));
+
+    for (unsigned int i = 0;  i < ramp->size;  i++)
+    {
+        values[i]                  = ramp->red[i] / 65535.f;
+        values[i + ramp->size]     = ramp->green[i] / 65535.f;
+        values[i + ramp->size * 2] = ramp->blue[i] / 65535.f;
+    }
+
+    CGSetDisplayTransferByTable(monitor->ns.displayID,
+                                ramp->size,
+                                values,
+                                values + ramp->size,
+                                values + ramp->size * 2);
+
+    _glfw_free(values);
+
+    } // autoreleasepool
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI CGDirectDisplayID glfwGetCocoaMonitor(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(kCGNullDirectDisplay);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_COCOA)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Cocoa: Platform not initialized");
+        return kCGNullDirectDisplay;
+    }
+
+    return monitor->ns.displayID;
+}
+
+#endif // _GLFW_COCOA
+

raylib/external/glfw/src/cocoa_platform.h

@@ -0,0 +1,302 @@
+//========================================================================
+// GLFW 3.4 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <stdint.h>
+
+#include <Carbon/Carbon.h>
+#include <IOKit/hid/IOHIDLib.h>
+
+// NOTE: All of NSGL was deprecated in the 10.14 SDK
+//       This disables the pointless warnings for every symbol we use
+#ifndef GL_SILENCE_DEPRECATION
+#define GL_SILENCE_DEPRECATION
+#endif
+
+#if defined(__OBJC__)
+#import <Cocoa/Cocoa.h>
+#else
+typedef void* id;
+#endif
+
+// NOTE: Many Cocoa enum values have been renamed and we need to build across
+//       SDK versions where one is unavailable or deprecated.
+//       We use the newer names in code and replace them with the older names if
+//       the base SDK does not provide the newer names.
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED < 101400
+ #define NSOpenGLContextParameterSwapInterval NSOpenGLCPSwapInterval
+ #define NSOpenGLContextParameterSurfaceOpacity NSOpenGLCPSurfaceOpacity
+#endif
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED < 101200
+ #define NSBitmapFormatAlphaNonpremultiplied NSAlphaNonpremultipliedBitmapFormat
+ #define NSEventMaskAny NSAnyEventMask
+ #define NSEventMaskKeyUp NSKeyUpMask
+ #define NSEventModifierFlagCapsLock NSAlphaShiftKeyMask
+ #define NSEventModifierFlagCommand NSCommandKeyMask
+ #define NSEventModifierFlagControl NSControlKeyMask
+ #define NSEventModifierFlagDeviceIndependentFlagsMask NSDeviceIndependentModifierFlagsMask
+ #define NSEventModifierFlagOption NSAlternateKeyMask
+ #define NSEventModifierFlagShift NSShiftKeyMask
+ #define NSEventTypeApplicationDefined NSApplicationDefined
+ #define NSWindowStyleMaskBorderless NSBorderlessWindowMask
+ #define NSWindowStyleMaskClosable NSClosableWindowMask
+ #define NSWindowStyleMaskMiniaturizable NSMiniaturizableWindowMask
+ #define NSWindowStyleMaskResizable NSResizableWindowMask
+ #define NSWindowStyleMaskTitled NSTitledWindowMask
+#endif
+
+// NOTE: Many Cocoa dynamically linked constants have been renamed and we need
+//       to build across SDK versions where one is unavailable or deprecated.
+//       We use the newer names in code and replace them with the older names if
+//       the deployment target is older than the newer names.
+
+#if MAC_OS_X_VERSION_MIN_REQUIRED < 101300
+ #define NSPasteboardTypeURL NSURLPboardType
+#endif
+
+typedef VkFlags VkMacOSSurfaceCreateFlagsMVK;
+typedef VkFlags VkMetalSurfaceCreateFlagsEXT;
+
+typedef struct VkMacOSSurfaceCreateInfoMVK
+{
+    VkStructureType                 sType;
+    const void*                     pNext;
+    VkMacOSSurfaceCreateFlagsMVK    flags;
+    const void*                     pView;
+} VkMacOSSurfaceCreateInfoMVK;
+
+typedef struct VkMetalSurfaceCreateInfoEXT
+{
+    VkStructureType                 sType;
+    const void*                     pNext;
+    VkMetalSurfaceCreateFlagsEXT    flags;
+    const void*                     pLayer;
+} VkMetalSurfaceCreateInfoEXT;
+
+typedef VkResult (APIENTRY *PFN_vkCreateMacOSSurfaceMVK)(VkInstance,const VkMacOSSurfaceCreateInfoMVK*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+typedef VkResult (APIENTRY *PFN_vkCreateMetalSurfaceEXT)(VkInstance,const VkMetalSurfaceCreateInfoEXT*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+
+#define GLFW_COCOA_WINDOW_STATE         _GLFWwindowNS  ns;
+#define GLFW_COCOA_LIBRARY_WINDOW_STATE _GLFWlibraryNS ns;
+#define GLFW_COCOA_MONITOR_STATE        _GLFWmonitorNS ns;
+#define GLFW_COCOA_CURSOR_STATE         _GLFWcursorNS  ns;
+
+#define GLFW_NSGL_CONTEXT_STATE         _GLFWcontextNSGL nsgl;
+#define GLFW_NSGL_LIBRARY_CONTEXT_STATE _GLFWlibraryNSGL nsgl;
+
+// HIToolbox.framework pointer typedefs
+#define kTISPropertyUnicodeKeyLayoutData _glfw.ns.tis.kPropertyUnicodeKeyLayoutData
+typedef TISInputSourceRef (*PFN_TISCopyCurrentKeyboardLayoutInputSource)(void);
+#define TISCopyCurrentKeyboardLayoutInputSource _glfw.ns.tis.CopyCurrentKeyboardLayoutInputSource
+typedef void* (*PFN_TISGetInputSourceProperty)(TISInputSourceRef,CFStringRef);
+#define TISGetInputSourceProperty _glfw.ns.tis.GetInputSourceProperty
+typedef UInt8 (*PFN_LMGetKbdType)(void);
+#define LMGetKbdType _glfw.ns.tis.GetKbdType
+
+
+// NSGL-specific per-context data
+//
+typedef struct _GLFWcontextNSGL
+{
+    id                pixelFormat;
+    id                object;
+} _GLFWcontextNSGL;
+
+// NSGL-specific global data
+//
+typedef struct _GLFWlibraryNSGL
+{
+    // dlopen handle for OpenGL.framework (for glfwGetProcAddress)
+    CFBundleRef     framework;
+} _GLFWlibraryNSGL;
+
+// Cocoa-specific per-window data
+//
+typedef struct _GLFWwindowNS
+{
+    id              object;
+    id              delegate;
+    id              view;
+    id              layer;
+
+    GLFWbool        maximized;
+    GLFWbool        occluded;
+    GLFWbool        scaleFramebuffer;
+
+    // Cached window properties to filter out duplicate events
+    int             width, height;
+    int             fbWidth, fbHeight;
+    float           xscale, yscale;
+
+    // The total sum of the distances the cursor has been warped
+    // since the last cursor motion event was processed
+    // This is kept to counteract Cocoa doing the same internally
+    double          cursorWarpDeltaX, cursorWarpDeltaY;
+} _GLFWwindowNS;
+
+// Cocoa-specific global data
+//
+typedef struct _GLFWlibraryNS
+{
+    CGEventSourceRef    eventSource;
+    id                  delegate;
+    GLFWbool            cursorHidden;
+    TISInputSourceRef   inputSource;
+    IOHIDManagerRef     hidManager;
+    id                  unicodeData;
+    id                  helper;
+    id                  keyUpMonitor;
+    id                  nibObjects;
+
+    char                keynames[GLFW_KEY_LAST + 1][17];
+    short int           keycodes[256];
+    short int           scancodes[GLFW_KEY_LAST + 1];
+    char*               clipboardString;
+    CGPoint             cascadePoint;
+    // Where to place the cursor when re-enabled
+    double              restoreCursorPosX, restoreCursorPosY;
+    // The window whose disabled cursor mode is active
+    _GLFWwindow*        disabledCursorWindow;
+
+    struct {
+        CFBundleRef     bundle;
+        PFN_TISCopyCurrentKeyboardLayoutInputSource CopyCurrentKeyboardLayoutInputSource;
+        PFN_TISGetInputSourceProperty GetInputSourceProperty;
+        PFN_LMGetKbdType GetKbdType;
+        CFStringRef     kPropertyUnicodeKeyLayoutData;
+    } tis;
+} _GLFWlibraryNS;
+
+// Cocoa-specific per-monitor data
+//
+typedef struct _GLFWmonitorNS
+{
+    CGDirectDisplayID   displayID;
+    CGDisplayModeRef    previousMode;
+    uint32_t            unitNumber;
+    id                  screen;
+    double              fallbackRefreshRate;
+} _GLFWmonitorNS;
+
+// Cocoa-specific per-cursor data
+//
+typedef struct _GLFWcursorNS
+{
+    id              object;
+} _GLFWcursorNS;
+
+
+GLFWbool _glfwConnectCocoa(int platformID, _GLFWplatform* platform);
+int _glfwInitCocoa(void);
+void _glfwTerminateCocoa(void);
+
+GLFWbool _glfwCreateWindowCocoa(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
+void _glfwDestroyWindowCocoa(_GLFWwindow* window);
+void _glfwSetWindowTitleCocoa(_GLFWwindow* window, const char* title);
+void _glfwSetWindowIconCocoa(_GLFWwindow* window, int count, const GLFWimage* images);
+void _glfwGetWindowPosCocoa(_GLFWwindow* window, int* xpos, int* ypos);
+void _glfwSetWindowPosCocoa(_GLFWwindow* window, int xpos, int ypos);
+void _glfwGetWindowSizeCocoa(_GLFWwindow* window, int* width, int* height);
+void _glfwSetWindowSizeCocoa(_GLFWwindow* window, int width, int height);
+void _glfwSetWindowSizeLimitsCocoa(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+void _glfwSetWindowAspectRatioCocoa(_GLFWwindow* window, int numer, int denom);
+void _glfwGetFramebufferSizeCocoa(_GLFWwindow* window, int* width, int* height);
+void _glfwGetWindowFrameSizeCocoa(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+void _glfwGetWindowContentScaleCocoa(_GLFWwindow* window, float* xscale, float* yscale);
+void _glfwIconifyWindowCocoa(_GLFWwindow* window);
+void _glfwRestoreWindowCocoa(_GLFWwindow* window);
+void _glfwMaximizeWindowCocoa(_GLFWwindow* window);
+void _glfwShowWindowCocoa(_GLFWwindow* window);
+void _glfwHideWindowCocoa(_GLFWwindow* window);
+void _glfwRequestWindowAttentionCocoa(_GLFWwindow* window);
+void _glfwFocusWindowCocoa(_GLFWwindow* window);
+void _glfwSetWindowMonitorCocoa(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+GLFWbool _glfwWindowFocusedCocoa(_GLFWwindow* window);
+GLFWbool _glfwWindowIconifiedCocoa(_GLFWwindow* window);
+GLFWbool _glfwWindowVisibleCocoa(_GLFWwindow* window);
+GLFWbool _glfwWindowMaximizedCocoa(_GLFWwindow* window);
+GLFWbool _glfwWindowHoveredCocoa(_GLFWwindow* window);
+GLFWbool _glfwFramebufferTransparentCocoa(_GLFWwindow* window);
+void _glfwSetWindowResizableCocoa(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowDecoratedCocoa(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowFloatingCocoa(_GLFWwindow* window, GLFWbool enabled);
+float _glfwGetWindowOpacityCocoa(_GLFWwindow* window);
+void _glfwSetWindowOpacityCocoa(_GLFWwindow* window, float opacity);
+void _glfwSetWindowMousePassthroughCocoa(_GLFWwindow* window, GLFWbool enabled);
+
+void _glfwSetRawMouseMotionCocoa(_GLFWwindow *window, GLFWbool enabled);
+GLFWbool _glfwRawMouseMotionSupportedCocoa(void);
+
+void _glfwPollEventsCocoa(void);
+void _glfwWaitEventsCocoa(void);
+void _glfwWaitEventsTimeoutCocoa(double timeout);
+void _glfwPostEmptyEventCocoa(void);
+
+void _glfwGetCursorPosCocoa(_GLFWwindow* window, double* xpos, double* ypos);
+void _glfwSetCursorPosCocoa(_GLFWwindow* window, double xpos, double ypos);
+void _glfwSetCursorModeCocoa(_GLFWwindow* window, int mode);
+const char* _glfwGetScancodeNameCocoa(int scancode);
+int _glfwGetKeyScancodeCocoa(int key);
+GLFWbool _glfwCreateCursorCocoa(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
+GLFWbool _glfwCreateStandardCursorCocoa(_GLFWcursor* cursor, int shape);
+void _glfwDestroyCursorCocoa(_GLFWcursor* cursor);
+void _glfwSetCursorCocoa(_GLFWwindow* window, _GLFWcursor* cursor);
+void _glfwSetClipboardStringCocoa(const char* string);
+const char* _glfwGetClipboardStringCocoa(void);
+
+EGLenum _glfwGetEGLPlatformCocoa(EGLint** attribs);
+EGLNativeDisplayType _glfwGetEGLNativeDisplayCocoa(void);
+EGLNativeWindowType _glfwGetEGLNativeWindowCocoa(_GLFWwindow* window);
+
+void _glfwGetRequiredInstanceExtensionsCocoa(char** extensions);
+GLFWbool _glfwGetPhysicalDevicePresentationSupportCocoa(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+VkResult _glfwCreateWindowSurfaceCocoa(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+
+void _glfwFreeMonitorCocoa(_GLFWmonitor* monitor);
+void _glfwGetMonitorPosCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos);
+void _glfwGetMonitorContentScaleCocoa(_GLFWmonitor* monitor, float* xscale, float* yscale);
+void _glfwGetMonitorWorkareaCocoa(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+GLFWvidmode* _glfwGetVideoModesCocoa(_GLFWmonitor* monitor, int* count);
+GLFWbool _glfwGetVideoModeCocoa(_GLFWmonitor* monitor, GLFWvidmode* mode);
+GLFWbool _glfwGetGammaRampCocoa(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
+void _glfwSetGammaRampCocoa(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+
+void _glfwPollMonitorsCocoa(void);
+void _glfwSetVideoModeCocoa(_GLFWmonitor* monitor, const GLFWvidmode* desired);
+void _glfwRestoreVideoModeCocoa(_GLFWmonitor* monitor);
+
+float _glfwTransformYCocoa(float y);
+
+void* _glfwLoadLocalVulkanLoaderCocoa(void);
+
+GLFWbool _glfwInitNSGL(void);
+void _glfwTerminateNSGL(void);
+GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
+                                const _GLFWctxconfig* ctxconfig,
+                                const _GLFWfbconfig* fbconfig);
+void _glfwDestroyContextNSGL(_GLFWwindow* window);
+

raylib/external/glfw/src/cocoa_time.c

@@ -0,0 +1,57 @@
+//========================================================================
+// GLFW 3.4 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2016 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_COCOA_TIMER)
+
+#include <mach/mach_time.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwPlatformInitTimer(void)
+{
+    mach_timebase_info_data_t info;
+    mach_timebase_info(&info);
+
+    _glfw.timer.ns.frequency = (info.denom * 1e9) / info.numer;
+}
+
+uint64_t _glfwPlatformGetTimerValue(void)
+{
+    return mach_absolute_time();
+}
+
+uint64_t _glfwPlatformGetTimerFrequency(void)
+{
+    return _glfw.timer.ns.frequency;
+}
+
+#endif // GLFW_BUILD_COCOA_TIMER
+

raylib/external/glfw/src/cocoa_time.h

@@ -0,0 +1,35 @@
+//========================================================================
+// GLFW 3.4 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2021 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define GLFW_COCOA_LIBRARY_TIMER_STATE  _GLFWtimerNS   ns;
+
+// Cocoa-specific global timer data
+//
+typedef struct _GLFWtimerNS
+{
+    uint64_t        frequency;
+} _GLFWtimerNS;
+

raylib/external/glfw/src/context.c

@@ -0,0 +1,765 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2016 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+#include <stdio.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Checks whether the desired context attributes are valid
+//
+// This function checks things like whether the specified client API version
+// exists and whether all relevant options have supported and non-conflicting
+// values
+//
+GLFWbool _glfwIsValidContextConfig(const _GLFWctxconfig* ctxconfig)
+{
+    if (ctxconfig->source != GLFW_NATIVE_CONTEXT_API &&
+        ctxconfig->source != GLFW_EGL_CONTEXT_API &&
+        ctxconfig->source != GLFW_OSMESA_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM,
+                        "Invalid context creation API 0x%08X",
+                        ctxconfig->source);
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->client != GLFW_NO_API &&
+        ctxconfig->client != GLFW_OPENGL_API &&
+        ctxconfig->client != GLFW_OPENGL_ES_API)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM,
+                        "Invalid client API 0x%08X",
+                        ctxconfig->client);
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->share)
+    {
+        if (ctxconfig->client == GLFW_NO_API ||
+            ctxconfig->share->context.client == GLFW_NO_API)
+        {
+            _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+            return GLFW_FALSE;
+        }
+
+        if (ctxconfig->source != ctxconfig->share->context.source)
+        {
+            _glfwInputError(GLFW_INVALID_ENUM,
+                            "Context creation APIs do not match between contexts");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->client == GLFW_OPENGL_API)
+    {
+        if ((ctxconfig->major < 1 || ctxconfig->minor < 0) ||
+            (ctxconfig->major == 1 && ctxconfig->minor > 5) ||
+            (ctxconfig->major == 2 && ctxconfig->minor > 1) ||
+            (ctxconfig->major == 3 && ctxconfig->minor > 3))
+        {
+            // OpenGL 1.0 is the smallest valid version
+            // OpenGL 1.x series ended with version 1.5
+            // OpenGL 2.x series ended with version 2.1
+            // OpenGL 3.x series ended with version 3.3
+            // For now, let everything else through
+
+            _glfwInputError(GLFW_INVALID_VALUE,
+                            "Invalid OpenGL version %i.%i",
+                            ctxconfig->major, ctxconfig->minor);
+            return GLFW_FALSE;
+        }
+
+        if (ctxconfig->profile)
+        {
+            if (ctxconfig->profile != GLFW_OPENGL_CORE_PROFILE &&
+                ctxconfig->profile != GLFW_OPENGL_COMPAT_PROFILE)
+            {
+                _glfwInputError(GLFW_INVALID_ENUM,
+                                "Invalid OpenGL profile 0x%08X",
+                                ctxconfig->profile);
+                return GLFW_FALSE;
+            }
+
+            if (ctxconfig->major <= 2 ||
+                (ctxconfig->major == 3 && ctxconfig->minor < 2))
+            {
+                // Desktop OpenGL context profiles are only defined for version 3.2
+                // and above
+
+                _glfwInputError(GLFW_INVALID_VALUE,
+                                "Context profiles are only defined for OpenGL version 3.2 and above");
+                return GLFW_FALSE;
+            }
+        }
+
+        if (ctxconfig->forward && ctxconfig->major <= 2)
+        {
+            // Forward-compatible contexts are only defined for OpenGL version 3.0 and above
+            _glfwInputError(GLFW_INVALID_VALUE,
+                            "Forward-compatibility is only defined for OpenGL version 3.0 and above");
+            return GLFW_FALSE;
+        }
+    }
+    else if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        if (ctxconfig->major < 1 || ctxconfig->minor < 0 ||
+            (ctxconfig->major == 1 && ctxconfig->minor > 1) ||
+            (ctxconfig->major == 2 && ctxconfig->minor > 0))
+        {
+            // OpenGL ES 1.0 is the smallest valid version
+            // OpenGL ES 1.x series ended with version 1.1
+            // OpenGL ES 2.x series ended with version 2.0
+            // For now, let everything else through
+
+            _glfwInputError(GLFW_INVALID_VALUE,
+                            "Invalid OpenGL ES version %i.%i",
+                            ctxconfig->major, ctxconfig->minor);
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->robustness)
+    {
+        if (ctxconfig->robustness != GLFW_NO_RESET_NOTIFICATION &&
+            ctxconfig->robustness != GLFW_LOSE_CONTEXT_ON_RESET)
+        {
+            _glfwInputError(GLFW_INVALID_ENUM,
+                            "Invalid context robustness mode 0x%08X",
+                            ctxconfig->robustness);
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->release)
+    {
+        if (ctxconfig->release != GLFW_RELEASE_BEHAVIOR_NONE &&
+            ctxconfig->release != GLFW_RELEASE_BEHAVIOR_FLUSH)
+        {
+            _glfwInputError(GLFW_INVALID_ENUM,
+                            "Invalid context release behavior 0x%08X",
+                            ctxconfig->release);
+            return GLFW_FALSE;
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+// Chooses the framebuffer config that best matches the desired one
+//
+const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
+                                         const _GLFWfbconfig* alternatives,
+                                         unsigned int count)
+{
+    unsigned int i;
+    unsigned int missing, leastMissing = UINT_MAX;
+    unsigned int colorDiff, leastColorDiff = UINT_MAX;
+    unsigned int extraDiff, leastExtraDiff = UINT_MAX;
+    const _GLFWfbconfig* current;
+    const _GLFWfbconfig* closest = NULL;
+
+    for (i = 0;  i < count;  i++)
+    {
+        current = alternatives + i;
+
+        if (desired->stereo > 0 && current->stereo == 0)
+        {
+            // Stereo is a hard constraint
+            continue;
+        }
+
+        // Count number of missing buffers
+        {
+            missing = 0;
+
+            if (desired->alphaBits > 0 && current->alphaBits == 0)
+                missing++;
+
+            if (desired->depthBits > 0 && current->depthBits == 0)
+                missing++;
+
+            if (desired->stencilBits > 0 && current->stencilBits == 0)
+                missing++;
+
+            if (desired->auxBuffers > 0 &&
+                current->auxBuffers < desired->auxBuffers)
+            {
+                missing += desired->auxBuffers - current->auxBuffers;
+            }
+
+            if (desired->samples > 0 && current->samples == 0)
+            {
+                // Technically, several multisampling buffers could be
+                // involved, but that's a lower level implementation detail and
+                // not important to us here, so we count them as one
+                missing++;
+            }
+
+            if (desired->transparent != current->transparent)
+                missing++;
+        }
+
+        // These polynomials make many small channel size differences matter
+        // less than one large channel size difference
+
+        // Calculate color channel size difference value
+        {
+            colorDiff = 0;
+
+            if (desired->redBits != GLFW_DONT_CARE)
+            {
+                colorDiff += (desired->redBits - current->redBits) *
+                             (desired->redBits - current->redBits);
+            }
+
+            if (desired->greenBits != GLFW_DONT_CARE)
+            {
+                colorDiff += (desired->greenBits - current->greenBits) *
+                             (desired->greenBits - current->greenBits);
+            }
+
+            if (desired->blueBits != GLFW_DONT_CARE)
+            {
+                colorDiff += (desired->blueBits - current->blueBits) *
+                             (desired->blueBits - current->blueBits);
+            }
+        }
+
+        // Calculate non-color channel size difference value
+        {
+            extraDiff = 0;
+
+            if (desired->alphaBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->alphaBits - current->alphaBits) *
+                             (desired->alphaBits - current->alphaBits);
+            }
+
+            if (desired->depthBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->depthBits - current->depthBits) *
+                             (desired->depthBits - current->depthBits);
+            }
+
+            if (desired->stencilBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->stencilBits - current->stencilBits) *
+                             (desired->stencilBits - current->stencilBits);
+            }
+
+            if (desired->accumRedBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->accumRedBits - current->accumRedBits) *
+                             (desired->accumRedBits - current->accumRedBits);
+            }
+
+            if (desired->accumGreenBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->accumGreenBits - current->accumGreenBits) *
+                             (desired->accumGreenBits - current->accumGreenBits);
+            }
+
+            if (desired->accumBlueBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->accumBlueBits - current->accumBlueBits) *
+                             (desired->accumBlueBits - current->accumBlueBits);
+            }
+
+            if (desired->accumAlphaBits != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->accumAlphaBits - current->accumAlphaBits) *
+                             (desired->accumAlphaBits - current->accumAlphaBits);
+            }
+
+            if (desired->samples != GLFW_DONT_CARE)
+            {
+                extraDiff += (desired->samples - current->samples) *
+                             (desired->samples - current->samples);
+            }
+
+            if (desired->sRGB && !current->sRGB)
+                extraDiff++;
+        }
+
+        // Figure out if the current one is better than the best one found so far
+        // Least number of missing buffers is the most important heuristic,
+        // then color buffer size match and lastly size match for other buffers
+
+        if (missing < leastMissing)
+            closest = current;
+        else if (missing == leastMissing)
+        {
+            if ((colorDiff < leastColorDiff) ||
+                (colorDiff == leastColorDiff && extraDiff < leastExtraDiff))
+            {
+                closest = current;
+            }
+        }
+
+        if (current == closest)
+        {
+            leastMissing = missing;
+            leastColorDiff = colorDiff;
+            leastExtraDiff = extraDiff;
+        }
+    }
+
+    return closest;
+}
+
+// Retrieves the attributes of the current context
+//
+GLFWbool _glfwRefreshContextAttribs(_GLFWwindow* window,
+                                    const _GLFWctxconfig* ctxconfig)
+{
+    int i;
+    _GLFWwindow* previous;
+    const char* version;
+    const char* prefixes[] =
+    {
+        "OpenGL ES-CM ",
+        "OpenGL ES-CL ",
+        "OpenGL ES ",
+        NULL
+    };
+
+    window->context.source = ctxconfig->source;
+    window->context.client = GLFW_OPENGL_API;
+
+    previous = _glfwPlatformGetTls(&_glfw.contextSlot);
+    glfwMakeContextCurrent((GLFWwindow*) window);
+    if (_glfwPlatformGetTls(&_glfw.contextSlot) != window)
+        return GLFW_FALSE;
+
+    window->context.GetIntegerv = (PFNGLGETINTEGERVPROC)
+        window->context.getProcAddress("glGetIntegerv");
+    window->context.GetString = (PFNGLGETSTRINGPROC)
+        window->context.getProcAddress("glGetString");
+    if (!window->context.GetIntegerv || !window->context.GetString)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Entry point retrieval is broken");
+        glfwMakeContextCurrent((GLFWwindow*) previous);
+        return GLFW_FALSE;
+    }
+
+    version = (const char*) window->context.GetString(GL_VERSION);
+    if (!version)
+    {
+        if (ctxconfig->client == GLFW_OPENGL_API)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "OpenGL version string retrieval is broken");
+        }
+        else
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "OpenGL ES version string retrieval is broken");
+        }
+
+        glfwMakeContextCurrent((GLFWwindow*) previous);
+        return GLFW_FALSE;
+    }
+
+    for (i = 0;  prefixes[i];  i++)
+    {
+        const size_t length = strlen(prefixes[i]);
+
+        if (strncmp(version, prefixes[i], length) == 0)
+        {
+            version += length;
+            window->context.client = GLFW_OPENGL_ES_API;
+            break;
+        }
+    }
+
+    if (!sscanf(version, "%d.%d.%d",
+                &window->context.major,
+                &window->context.minor,
+                &window->context.revision))
+    {
+        if (window->context.client == GLFW_OPENGL_API)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "No version found in OpenGL version string");
+        }
+        else
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "No version found in OpenGL ES version string");
+        }
+
+        glfwMakeContextCurrent((GLFWwindow*) previous);
+        return GLFW_FALSE;
+    }
+
+    if (window->context.major < ctxconfig->major ||
+        (window->context.major == ctxconfig->major &&
+         window->context.minor < ctxconfig->minor))
+    {
+        // The desired OpenGL version is greater than the actual version
+        // This only happens if the machine lacks {GLX|WGL}_ARB_create_context
+        // /and/ the user has requested an OpenGL version greater than 1.0
+
+        // For API consistency, we emulate the behavior of the
+        // {GLX|WGL}_ARB_create_context extension and fail here
+
+        if (window->context.client == GLFW_OPENGL_API)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "Requested OpenGL version %i.%i, got version %i.%i",
+                            ctxconfig->major, ctxconfig->minor,
+                            window->context.major, window->context.minor);
+        }
+        else
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "Requested OpenGL ES version %i.%i, got version %i.%i",
+                            ctxconfig->major, ctxconfig->minor,
+                            window->context.major, window->context.minor);
+        }
+
+        glfwMakeContextCurrent((GLFWwindow*) previous);
+        return GLFW_FALSE;
+    }
+
+    if (window->context.major >= 3)
+    {
+        // OpenGL 3.0+ uses a different function for extension string retrieval
+        // We cache it here instead of in glfwExtensionSupported mostly to alert
+        // users as early as possible that their build may be broken
+
+        window->context.GetStringi = (PFNGLGETSTRINGIPROC)
+            window->context.getProcAddress("glGetStringi");
+        if (!window->context.GetStringi)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Entry point retrieval is broken");
+            glfwMakeContextCurrent((GLFWwindow*) previous);
+            return GLFW_FALSE;
+        }
+    }
+
+    if (window->context.client == GLFW_OPENGL_API)
+    {
+        // Read back context flags (OpenGL 3.0 and above)
+        if (window->context.major >= 3)
+        {
+            GLint flags;
+            window->context.GetIntegerv(GL_CONTEXT_FLAGS, &flags);
+
+            if (flags & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT)
+                window->context.forward = GLFW_TRUE;
+
+            if (flags & GL_CONTEXT_FLAG_DEBUG_BIT)
+                window->context.debug = GLFW_TRUE;
+            else if (glfwExtensionSupported("GL_ARB_debug_output") &&
+                     ctxconfig->debug)
+            {
+                // HACK: This is a workaround for older drivers (pre KHR_debug)
+                //       not setting the debug bit in the context flags for
+                //       debug contexts
+                window->context.debug = GLFW_TRUE;
+            }
+
+            if (flags & GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR)
+                window->context.noerror = GLFW_TRUE;
+        }
+
+        // Read back OpenGL context profile (OpenGL 3.2 and above)
+        if (window->context.major >= 4 ||
+            (window->context.major == 3 && window->context.minor >= 2))
+        {
+            GLint mask;
+            window->context.GetIntegerv(GL_CONTEXT_PROFILE_MASK, &mask);
+
+            if (mask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT)
+                window->context.profile = GLFW_OPENGL_COMPAT_PROFILE;
+            else if (mask & GL_CONTEXT_CORE_PROFILE_BIT)
+                window->context.profile = GLFW_OPENGL_CORE_PROFILE;
+            else if (glfwExtensionSupported("GL_ARB_compatibility"))
+            {
+                // HACK: This is a workaround for the compatibility profile bit
+                //       not being set in the context flags if an OpenGL 3.2+
+                //       context was created without having requested a specific
+                //       version
+                window->context.profile = GLFW_OPENGL_COMPAT_PROFILE;
+            }
+        }
+
+        // Read back robustness strategy
+        if (glfwExtensionSupported("GL_ARB_robustness"))
+        {
+            // NOTE: We avoid using the context flags for detection, as they are
+            //       only present from 3.0 while the extension applies from 1.1
+
+            GLint strategy;
+            window->context.GetIntegerv(GL_RESET_NOTIFICATION_STRATEGY_ARB,
+                                        &strategy);
+
+            if (strategy == GL_LOSE_CONTEXT_ON_RESET_ARB)
+                window->context.robustness = GLFW_LOSE_CONTEXT_ON_RESET;
+            else if (strategy == GL_NO_RESET_NOTIFICATION_ARB)
+                window->context.robustness = GLFW_NO_RESET_NOTIFICATION;
+        }
+    }
+    else
+    {
+        // Read back robustness strategy
+        if (glfwExtensionSupported("GL_EXT_robustness"))
+        {
+            // NOTE: The values of these constants match those of the OpenGL ARB
+            //       one, so we can reuse them here
+
+            GLint strategy;
+            window->context.GetIntegerv(GL_RESET_NOTIFICATION_STRATEGY_ARB,
+                                        &strategy);
+
+            if (strategy == GL_LOSE_CONTEXT_ON_RESET_ARB)
+                window->context.robustness = GLFW_LOSE_CONTEXT_ON_RESET;
+            else if (strategy == GL_NO_RESET_NOTIFICATION_ARB)
+                window->context.robustness = GLFW_NO_RESET_NOTIFICATION;
+        }
+    }
+
+    if (glfwExtensionSupported("GL_KHR_context_flush_control"))
+    {
+        GLint behavior;
+        window->context.GetIntegerv(GL_CONTEXT_RELEASE_BEHAVIOR, &behavior);
+
+        if (behavior == GL_NONE)
+            window->context.release = GLFW_RELEASE_BEHAVIOR_NONE;
+        else if (behavior == GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH)
+            window->context.release = GLFW_RELEASE_BEHAVIOR_FLUSH;
+    }
+
+    // Clearing the front buffer to black to avoid garbage pixels left over from
+    // previous uses of our bit of VRAM
+    {
+        PFNGLCLEARPROC glClear = (PFNGLCLEARPROC)
+            window->context.getProcAddress("glClear");
+        glClear(GL_COLOR_BUFFER_BIT);
+
+        if (window->doublebuffer)
+            window->context.swapBuffers(window);
+    }
+
+    glfwMakeContextCurrent((GLFWwindow*) previous);
+    return GLFW_TRUE;
+}
+
+// Searches an extension string for the specified extension
+//
+GLFWbool _glfwStringInExtensionString(const char* string, const char* extensions)
+{
+    const char* start = extensions;
+
+    for (;;)
+    {
+        const char* where;
+        const char* terminator;
+
+        where = strstr(start, string);
+        if (!where)
+            return GLFW_FALSE;
+
+        terminator = where + strlen(string);
+        if (where == start || *(where - 1) == ' ')
+        {
+            if (*terminator == ' ' || *terminator == '\0')
+                break;
+        }
+
+        start = terminator;
+    }
+
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI void glfwMakeContextCurrent(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFWwindow* previous;
+
+    _GLFW_REQUIRE_INIT();
+
+    previous = _glfwPlatformGetTls(&_glfw.contextSlot);
+
+    if (window && window->context.client == GLFW_NO_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT,
+                        "Cannot make current with a window that has no OpenGL or OpenGL ES context");
+        return;
+    }
+
+    if (previous)
+    {
+        if (!window || window->context.source != previous->context.source)
+            previous->context.makeCurrent(NULL);
+    }
+
+    if (window)
+        window->context.makeCurrent(window);
+}
+
+GLFWAPI GLFWwindow* glfwGetCurrentContext(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return _glfwPlatformGetTls(&_glfw.contextSlot);
+}
+
+GLFWAPI void glfwSwapBuffers(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_REQUIRE_INIT();
+
+    if (window->context.client == GLFW_NO_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT,
+                        "Cannot swap buffers of a window that has no OpenGL or OpenGL ES context");
+        return;
+    }
+
+    window->context.swapBuffers(window);
+}
+
+GLFWAPI void glfwSwapInterval(int interval)
+{
+    _GLFWwindow* window;
+
+    _GLFW_REQUIRE_INIT();
+
+    window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    if (!window)
+    {
+        _glfwInputError(GLFW_NO_CURRENT_CONTEXT,
+                        "Cannot set swap interval without a current OpenGL or OpenGL ES context");
+        return;
+    }
+
+    window->context.swapInterval(interval);
+}
+
+GLFWAPI int glfwExtensionSupported(const char* extension)
+{
+    _GLFWwindow* window;
+    assert(extension != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    if (!window)
+    {
+        _glfwInputError(GLFW_NO_CURRENT_CONTEXT,
+                        "Cannot query extension without a current OpenGL or OpenGL ES context");
+        return GLFW_FALSE;
+    }
+
+    if (*extension == '\0')
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Extension name cannot be an empty string");
+        return GLFW_FALSE;
+    }
+
+    if (window->context.major >= 3)
+    {
+        int i;
+        GLint count;
+
+        // Check if extension is in the modern OpenGL extensions string list
+
+        window->context.GetIntegerv(GL_NUM_EXTENSIONS, &count);
+
+        for (i = 0;  i < count;  i++)
+        {
+            const char* en = (const char*)
+                window->context.GetStringi(GL_EXTENSIONS, i);
+            if (!en)
+            {
+                _glfwInputError(GLFW_PLATFORM_ERROR,
+                                "Extension string retrieval is broken");
+                return GLFW_FALSE;
+            }
+
+            if (strcmp(en, extension) == 0)
+                return GLFW_TRUE;
+        }
+    }
+    else
+    {
+        // Check if extension is in the old style OpenGL extensions string
+
+        const char* extensions = (const char*)
+            window->context.GetString(GL_EXTENSIONS);
+        if (!extensions)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Extension string retrieval is broken");
+            return GLFW_FALSE;
+        }
+
+        if (_glfwStringInExtensionString(extension, extensions))
+            return GLFW_TRUE;
+    }
+
+    // Check if extension is in the platform-specific string
+    return window->context.extensionSupported(extension);
+}
+
+GLFWAPI GLFWglproc glfwGetProcAddress(const char* procname)
+{
+    _GLFWwindow* window;
+    assert(procname != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    if (!window)
+    {
+        _glfwInputError(GLFW_NO_CURRENT_CONTEXT,
+                        "Cannot query entry point without a current OpenGL or OpenGL ES context");
+        return NULL;
+    }
+
+    return window->context.getProcAddress(procname);
+}
+

raylib/external/glfw/src/egl_context.c

@@ -0,0 +1,911 @@
+//========================================================================
+// GLFW 3.4 EGL - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+
+
+// Return a description of the specified EGL error
+//
+static const char* getEGLErrorString(EGLint error)
+{
+    switch (error)
+    {
+        case EGL_SUCCESS:
+            return "Success";
+        case EGL_NOT_INITIALIZED:
+            return "EGL is not or could not be initialized";
+        case EGL_BAD_ACCESS:
+            return "EGL cannot access a requested resource";
+        case EGL_BAD_ALLOC:
+            return "EGL failed to allocate resources for the requested operation";
+        case EGL_BAD_ATTRIBUTE:
+            return "An unrecognized attribute or attribute value was passed in the attribute list";
+        case EGL_BAD_CONTEXT:
+            return "An EGLContext argument does not name a valid EGL rendering context";
+        case EGL_BAD_CONFIG:
+            return "An EGLConfig argument does not name a valid EGL frame buffer configuration";
+        case EGL_BAD_CURRENT_SURFACE:
+            return "The current surface of the calling thread is a window, pixel buffer or pixmap that is no longer valid";
+        case EGL_BAD_DISPLAY:
+            return "An EGLDisplay argument does not name a valid EGL display connection";
+        case EGL_BAD_SURFACE:
+            return "An EGLSurface argument does not name a valid surface configured for GL rendering";
+        case EGL_BAD_MATCH:
+            return "Arguments are inconsistent";
+        case EGL_BAD_PARAMETER:
+            return "One or more argument values are invalid";
+        case EGL_BAD_NATIVE_PIXMAP:
+            return "A NativePixmapType argument does not refer to a valid native pixmap";
+        case EGL_BAD_NATIVE_WINDOW:
+            return "A NativeWindowType argument does not refer to a valid native window";
+        case EGL_CONTEXT_LOST:
+            return "The application must destroy all contexts and reinitialise";
+        default:
+            return "ERROR: UNKNOWN EGL ERROR";
+    }
+}
+
+// Returns the specified attribute of the specified EGLConfig
+//
+static int getEGLConfigAttrib(EGLConfig config, int attrib)
+{
+    int value;
+    eglGetConfigAttrib(_glfw.egl.display, config, attrib, &value);
+    return value;
+}
+
+// Return the EGLConfig most closely matching the specified hints
+//
+static GLFWbool chooseEGLConfig(const _GLFWctxconfig* ctxconfig,
+                                const _GLFWfbconfig* fbconfig,
+                                EGLConfig* result)
+{
+    EGLConfig* nativeConfigs;
+    _GLFWfbconfig* usableConfigs;
+    const _GLFWfbconfig* closest;
+    int i, nativeCount, usableCount, apiBit;
+    GLFWbool wrongApiAvailable = GLFW_FALSE;
+
+    if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        if (ctxconfig->major == 1)
+            apiBit = EGL_OPENGL_ES_BIT;
+        else
+            apiBit = EGL_OPENGL_ES2_BIT;
+    }
+    else
+        apiBit = EGL_OPENGL_BIT;
+
+    if (fbconfig->stereo)
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE, "EGL: Stereo rendering not supported");
+        return GLFW_FALSE;
+    }
+
+    eglGetConfigs(_glfw.egl.display, NULL, 0, &nativeCount);
+    if (!nativeCount)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "EGL: No EGLConfigs returned");
+        return GLFW_FALSE;
+    }
+
+    nativeConfigs = _glfw_calloc(nativeCount, sizeof(EGLConfig));
+    eglGetConfigs(_glfw.egl.display, nativeConfigs, nativeCount, &nativeCount);
+
+    usableConfigs = _glfw_calloc(nativeCount, sizeof(_GLFWfbconfig));
+    usableCount = 0;
+
+    for (i = 0;  i < nativeCount;  i++)
+    {
+        const EGLConfig n = nativeConfigs[i];
+        _GLFWfbconfig* u = usableConfigs + usableCount;
+
+        // Only consider RGB(A) EGLConfigs
+        if (getEGLConfigAttrib(n, EGL_COLOR_BUFFER_TYPE) != EGL_RGB_BUFFER)
+            continue;
+
+        // Only consider window EGLConfigs
+        if (!(getEGLConfigAttrib(n, EGL_SURFACE_TYPE) & EGL_WINDOW_BIT))
+            continue;
+
+#if defined(_GLFW_X11)
+        if (_glfw.platform.platformID == GLFW_PLATFORM_X11)
+        {
+            XVisualInfo vi = {0};
+
+            // Only consider EGLConfigs with associated Visuals
+            vi.visualid = getEGLConfigAttrib(n, EGL_NATIVE_VISUAL_ID);
+            if (!vi.visualid)
+                continue;
+
+            if (fbconfig->transparent)
+            {
+                int count;
+                XVisualInfo* vis =
+                    XGetVisualInfo(_glfw.x11.display, VisualIDMask, &vi, &count);
+                if (vis)
+                {
+                    u->transparent = _glfwIsVisualTransparentX11(vis[0].visual);
+                    XFree(vis);
+                }
+            }
+        }
+#endif // _GLFW_X11
+
+        if (!(getEGLConfigAttrib(n, EGL_RENDERABLE_TYPE) & apiBit))
+        {
+            wrongApiAvailable = GLFW_TRUE;
+            continue;
+        }
+
+        u->redBits = getEGLConfigAttrib(n, EGL_RED_SIZE);
+        u->greenBits = getEGLConfigAttrib(n, EGL_GREEN_SIZE);
+        u->blueBits = getEGLConfigAttrib(n, EGL_BLUE_SIZE);
+
+        u->alphaBits = getEGLConfigAttrib(n, EGL_ALPHA_SIZE);
+        u->depthBits = getEGLConfigAttrib(n, EGL_DEPTH_SIZE);
+        u->stencilBits = getEGLConfigAttrib(n, EGL_STENCIL_SIZE);
+
+#if defined(_GLFW_WAYLAND)
+        if (_glfw.platform.platformID == GLFW_PLATFORM_WAYLAND)
+        {
+            // NOTE: The wl_surface opaque region is no guarantee that its buffer
+            //       is presented as opaque, if it also has an alpha channel
+            // HACK: If EGL_EXT_present_opaque is unavailable, ignore any config
+            //       with an alpha channel to ensure the buffer is opaque
+            if (!_glfw.egl.EXT_present_opaque)
+            {
+                if (!fbconfig->transparent && u->alphaBits > 0)
+                    continue;
+            }
+        }
+#endif // _GLFW_WAYLAND
+
+        u->samples = getEGLConfigAttrib(n, EGL_SAMPLES);
+        u->doublebuffer = fbconfig->doublebuffer;
+
+        u->handle = (uintptr_t) n;
+        usableCount++;
+    }
+
+    closest = _glfwChooseFBConfig(fbconfig, usableConfigs, usableCount);
+    if (closest)
+        *result = (EGLConfig) closest->handle;
+    else
+    {
+        if (wrongApiAvailable)
+        {
+            if (ctxconfig->client == GLFW_OPENGL_ES_API)
+            {
+                if (ctxconfig->major == 1)
+                {
+                    _glfwInputError(GLFW_API_UNAVAILABLE,
+                                    "EGL: Failed to find support for OpenGL ES 1.x");
+                }
+                else
+                {
+                    _glfwInputError(GLFW_API_UNAVAILABLE,
+                                    "EGL: Failed to find support for OpenGL ES 2 or later");
+                }
+            }
+            else
+            {
+                _glfwInputError(GLFW_API_UNAVAILABLE,
+                                "EGL: Failed to find support for OpenGL");
+            }
+        }
+        else
+        {
+            _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                            "EGL: Failed to find a suitable EGLConfig");
+        }
+    }
+
+    _glfw_free(nativeConfigs);
+    _glfw_free(usableConfigs);
+
+    return closest != NULL;
+}
+
+static void makeContextCurrentEGL(_GLFWwindow* window)
+{
+    if (window)
+    {
+        if (!eglMakeCurrent(_glfw.egl.display,
+                            window->context.egl.surface,
+                            window->context.egl.surface,
+                            window->context.egl.handle))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "EGL: Failed to make context current: %s",
+                            getEGLErrorString(eglGetError()));
+            return;
+        }
+    }
+    else
+    {
+        if (!eglMakeCurrent(_glfw.egl.display,
+                            EGL_NO_SURFACE,
+                            EGL_NO_SURFACE,
+                            EGL_NO_CONTEXT))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "EGL: Failed to clear current context: %s",
+                            getEGLErrorString(eglGetError()));
+            return;
+        }
+    }
+
+    _glfwPlatformSetTls(&_glfw.contextSlot, window);
+}
+
+static void swapBuffersEGL(_GLFWwindow* window)
+{
+    if (window != _glfwPlatformGetTls(&_glfw.contextSlot))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGL: The context must be current on the calling thread when swapping buffers");
+        return;
+    }
+
+#if defined(_GLFW_WAYLAND)
+    if (_glfw.platform.platformID == GLFW_PLATFORM_WAYLAND)
+    {
+        // NOTE: Swapping buffers on a hidden window on Wayland makes it visible
+        if (!window->wl.visible)
+            return;
+    }
+#endif
+
+    eglSwapBuffers(_glfw.egl.display, window->context.egl.surface);
+}
+
+static void swapIntervalEGL(int interval)
+{
+    eglSwapInterval(_glfw.egl.display, interval);
+}
+
+static int extensionSupportedEGL(const char* extension)
+{
+    const char* extensions = eglQueryString(_glfw.egl.display, EGL_EXTENSIONS);
+    if (extensions)
+    {
+        if (_glfwStringInExtensionString(extension, extensions))
+            return GLFW_TRUE;
+    }
+
+    return GLFW_FALSE;
+}
+
+static GLFWglproc getProcAddressEGL(const char* procname)
+{
+    _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    assert(window != NULL);
+
+    if (window->context.egl.client)
+    {
+        GLFWglproc proc = (GLFWglproc)
+            _glfwPlatformGetModuleSymbol(window->context.egl.client, procname);
+        if (proc)
+            return proc;
+    }
+
+    return eglGetProcAddress(procname);
+}
+
+static void destroyContextEGL(_GLFWwindow* window)
+{
+    // NOTE: Do not unload libGL.so.1 while the X11 display is still open,
+    //       as it will make XCloseDisplay segfault
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11 ||
+        window->context.client != GLFW_OPENGL_API)
+    {
+        if (window->context.egl.client)
+        {
+            _glfwPlatformFreeModule(window->context.egl.client);
+            window->context.egl.client = NULL;
+        }
+    }
+
+    if (window->context.egl.surface)
+    {
+        eglDestroySurface(_glfw.egl.display, window->context.egl.surface);
+        window->context.egl.surface = EGL_NO_SURFACE;
+    }
+
+    if (window->context.egl.handle)
+    {
+        eglDestroyContext(_glfw.egl.display, window->context.egl.handle);
+        window->context.egl.handle = EGL_NO_CONTEXT;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Initialize EGL
+//
+GLFWbool _glfwInitEGL(void)
+{
+    int i;
+    EGLint* attribs = NULL;
+    const char* extensions;
+    const char* sonames[] =
+    {
+#if defined(_GLFW_EGL_LIBRARY)
+        _GLFW_EGL_LIBRARY,
+#elif defined(_GLFW_WIN32)
+        "libEGL.dll",
+        "EGL.dll",
+#elif defined(_GLFW_COCOA)
+        "libEGL.dylib",
+#elif defined(__CYGWIN__)
+        "libEGL-1.so",
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+        "libEGL.so",
+#else
+        "libEGL.so.1",
+#endif
+        NULL
+    };
+
+    if (_glfw.egl.handle)
+        return GLFW_TRUE;
+
+    for (i = 0;  sonames[i];  i++)
+    {
+        _glfw.egl.handle = _glfwPlatformLoadModule(sonames[i]);
+        if (_glfw.egl.handle)
+            break;
+    }
+
+    if (!_glfw.egl.handle)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "EGL: Library not found");
+        return GLFW_FALSE;
+    }
+
+    _glfw.egl.prefix = (strncmp(sonames[i], "lib", 3) == 0);
+
+    _glfw.egl.GetConfigAttrib = (PFN_eglGetConfigAttrib)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglGetConfigAttrib");
+    _glfw.egl.GetConfigs = (PFN_eglGetConfigs)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglGetConfigs");
+    _glfw.egl.GetDisplay = (PFN_eglGetDisplay)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglGetDisplay");
+    _glfw.egl.GetError = (PFN_eglGetError)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglGetError");
+    _glfw.egl.Initialize = (PFN_eglInitialize)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglInitialize");
+    _glfw.egl.Terminate = (PFN_eglTerminate)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglTerminate");
+    _glfw.egl.BindAPI = (PFN_eglBindAPI)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglBindAPI");
+    _glfw.egl.CreateContext = (PFN_eglCreateContext)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglCreateContext");
+    _glfw.egl.DestroySurface = (PFN_eglDestroySurface)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglDestroySurface");
+    _glfw.egl.DestroyContext = (PFN_eglDestroyContext)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglDestroyContext");
+    _glfw.egl.CreateWindowSurface = (PFN_eglCreateWindowSurface)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglCreateWindowSurface");
+    _glfw.egl.MakeCurrent = (PFN_eglMakeCurrent)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglMakeCurrent");
+    _glfw.egl.SwapBuffers = (PFN_eglSwapBuffers)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglSwapBuffers");
+    _glfw.egl.SwapInterval = (PFN_eglSwapInterval)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglSwapInterval");
+    _glfw.egl.QueryString = (PFN_eglQueryString)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglQueryString");
+    _glfw.egl.GetProcAddress = (PFN_eglGetProcAddress)
+        _glfwPlatformGetModuleSymbol(_glfw.egl.handle, "eglGetProcAddress");
+
+    if (!_glfw.egl.GetConfigAttrib ||
+        !_glfw.egl.GetConfigs ||
+        !_glfw.egl.GetDisplay ||
+        !_glfw.egl.GetError ||
+        !_glfw.egl.Initialize ||
+        !_glfw.egl.Terminate ||
+        !_glfw.egl.BindAPI ||
+        !_glfw.egl.CreateContext ||
+        !_glfw.egl.DestroySurface ||
+        !_glfw.egl.DestroyContext ||
+        !_glfw.egl.CreateWindowSurface ||
+        !_glfw.egl.MakeCurrent ||
+        !_glfw.egl.SwapBuffers ||
+        !_glfw.egl.SwapInterval ||
+        !_glfw.egl.QueryString ||
+        !_glfw.egl.GetProcAddress)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGL: Failed to load required entry points");
+
+        _glfwTerminateEGL();
+        return GLFW_FALSE;
+    }
+
+    extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
+    if (extensions && eglGetError() == EGL_SUCCESS)
+        _glfw.egl.EXT_client_extensions = GLFW_TRUE;
+
+    if (_glfw.egl.EXT_client_extensions)
+    {
+        _glfw.egl.EXT_platform_base =
+            _glfwStringInExtensionString("EGL_EXT_platform_base", extensions);
+        _glfw.egl.EXT_platform_x11 =
+            _glfwStringInExtensionString("EGL_EXT_platform_x11", extensions);
+        _glfw.egl.EXT_platform_wayland =
+            _glfwStringInExtensionString("EGL_EXT_platform_wayland", extensions);
+        _glfw.egl.ANGLE_platform_angle =
+            _glfwStringInExtensionString("EGL_ANGLE_platform_angle", extensions);
+        _glfw.egl.ANGLE_platform_angle_opengl =
+            _glfwStringInExtensionString("EGL_ANGLE_platform_angle_opengl", extensions);
+        _glfw.egl.ANGLE_platform_angle_d3d =
+            _glfwStringInExtensionString("EGL_ANGLE_platform_angle_d3d", extensions);
+        _glfw.egl.ANGLE_platform_angle_vulkan =
+            _glfwStringInExtensionString("EGL_ANGLE_platform_angle_vulkan", extensions);
+        _glfw.egl.ANGLE_platform_angle_metal =
+            _glfwStringInExtensionString("EGL_ANGLE_platform_angle_metal", extensions);
+    }
+
+    if (_glfw.egl.EXT_platform_base)
+    {
+        _glfw.egl.GetPlatformDisplayEXT = (PFNEGLGETPLATFORMDISPLAYEXTPROC)
+            eglGetProcAddress("eglGetPlatformDisplayEXT");
+        _glfw.egl.CreatePlatformWindowSurfaceEXT = (PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC)
+            eglGetProcAddress("eglCreatePlatformWindowSurfaceEXT");
+    }
+
+    _glfw.egl.platform = _glfw.platform.getEGLPlatform(&attribs);
+    if (_glfw.egl.platform)
+    {
+        _glfw.egl.display =
+            eglGetPlatformDisplayEXT(_glfw.egl.platform,
+                                     _glfw.platform.getEGLNativeDisplay(),
+                                     attribs);
+    }
+    else
+        _glfw.egl.display = eglGetDisplay(_glfw.platform.getEGLNativeDisplay());
+
+    _glfw_free(attribs);
+
+    if (_glfw.egl.display == EGL_NO_DISPLAY)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "EGL: Failed to get EGL display: %s",
+                        getEGLErrorString(eglGetError()));
+
+        _glfwTerminateEGL();
+        return GLFW_FALSE;
+    }
+
+    if (!eglInitialize(_glfw.egl.display, &_glfw.egl.major, &_glfw.egl.minor))
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "EGL: Failed to initialize EGL: %s",
+                        getEGLErrorString(eglGetError()));
+
+        _glfwTerminateEGL();
+        return GLFW_FALSE;
+    }
+
+    _glfw.egl.KHR_create_context =
+        extensionSupportedEGL("EGL_KHR_create_context");
+    _glfw.egl.KHR_create_context_no_error =
+        extensionSupportedEGL("EGL_KHR_create_context_no_error");
+    _glfw.egl.KHR_gl_colorspace =
+        extensionSupportedEGL("EGL_KHR_gl_colorspace");
+    _glfw.egl.KHR_get_all_proc_addresses =
+        extensionSupportedEGL("EGL_KHR_get_all_proc_addresses");
+    _glfw.egl.KHR_context_flush_control =
+        extensionSupportedEGL("EGL_KHR_context_flush_control");
+    _glfw.egl.EXT_present_opaque =
+        extensionSupportedEGL("EGL_EXT_present_opaque");
+
+    return GLFW_TRUE;
+}
+
+// Terminate EGL
+//
+void _glfwTerminateEGL(void)
+{
+    if (_glfw.egl.display)
+    {
+        eglTerminate(_glfw.egl.display);
+        _glfw.egl.display = EGL_NO_DISPLAY;
+    }
+
+    if (_glfw.egl.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.egl.handle);
+        _glfw.egl.handle = NULL;
+    }
+}
+
+#define SET_ATTRIB(a, v) \
+{ \
+    assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[index++] = a; \
+    attribs[index++] = v; \
+}
+
+// Create the OpenGL or OpenGL ES context
+//
+GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig)
+{
+    EGLint attribs[40];
+    EGLConfig config;
+    EGLContext share = NULL;
+    EGLNativeWindowType native;
+    int index = 0;
+
+    if (!_glfw.egl.display)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "EGL: API not available");
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->share)
+        share = ctxconfig->share->context.egl.handle;
+
+    if (!chooseEGLConfig(ctxconfig, fbconfig, &config))
+        return GLFW_FALSE;
+
+    if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        if (!eglBindAPI(EGL_OPENGL_ES_API))
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "EGL: Failed to bind OpenGL ES: %s",
+                            getEGLErrorString(eglGetError()));
+            return GLFW_FALSE;
+        }
+    }
+    else
+    {
+        if (!eglBindAPI(EGL_OPENGL_API))
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "EGL: Failed to bind OpenGL: %s",
+                            getEGLErrorString(eglGetError()));
+            return GLFW_FALSE;
+        }
+    }
+
+    if (_glfw.egl.KHR_create_context)
+    {
+        int mask = 0, flags = 0;
+
+        if (ctxconfig->client == GLFW_OPENGL_API)
+        {
+            if (ctxconfig->forward)
+                flags |= EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR;
+
+            if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
+                mask |= EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
+            else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+                mask |= EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR;
+        }
+
+        if (ctxconfig->debug)
+            flags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
+
+        if (ctxconfig->robustness)
+        {
+            if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
+            {
+                SET_ATTRIB(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR,
+                           EGL_NO_RESET_NOTIFICATION_KHR);
+            }
+            else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
+            {
+                SET_ATTRIB(EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR,
+                           EGL_LOSE_CONTEXT_ON_RESET_KHR);
+            }
+
+            flags |= EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR;
+        }
+
+        if (ctxconfig->major != 1 || ctxconfig->minor != 0)
+        {
+            SET_ATTRIB(EGL_CONTEXT_MAJOR_VERSION_KHR, ctxconfig->major);
+            SET_ATTRIB(EGL_CONTEXT_MINOR_VERSION_KHR, ctxconfig->minor);
+        }
+
+        if (ctxconfig->noerror)
+        {
+            if (_glfw.egl.KHR_create_context_no_error)
+                SET_ATTRIB(EGL_CONTEXT_OPENGL_NO_ERROR_KHR, GLFW_TRUE);
+        }
+
+        if (mask)
+            SET_ATTRIB(EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, mask);
+
+        if (flags)
+            SET_ATTRIB(EGL_CONTEXT_FLAGS_KHR, flags);
+    }
+    else
+    {
+        if (ctxconfig->client == GLFW_OPENGL_ES_API)
+            SET_ATTRIB(EGL_CONTEXT_CLIENT_VERSION, ctxconfig->major);
+    }
+
+    if (_glfw.egl.KHR_context_flush_control)
+    {
+        if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
+        {
+            SET_ATTRIB(EGL_CONTEXT_RELEASE_BEHAVIOR_KHR,
+                       EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR);
+        }
+        else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
+        {
+            SET_ATTRIB(EGL_CONTEXT_RELEASE_BEHAVIOR_KHR,
+                       EGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_KHR);
+        }
+    }
+
+    SET_ATTRIB(EGL_NONE, EGL_NONE);
+
+    window->context.egl.handle = eglCreateContext(_glfw.egl.display,
+                                                  config, share, attribs);
+
+    if (window->context.egl.handle == EGL_NO_CONTEXT)
+    {
+        _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                        "EGL: Failed to create context: %s",
+                        getEGLErrorString(eglGetError()));
+        return GLFW_FALSE;
+    }
+
+    // Set up attributes for surface creation
+    index = 0;
+
+    if (fbconfig->sRGB)
+    {
+        if (_glfw.egl.KHR_gl_colorspace)
+            SET_ATTRIB(EGL_GL_COLORSPACE_KHR, EGL_GL_COLORSPACE_SRGB_KHR);
+    }
+
+    if (!fbconfig->doublebuffer)
+        SET_ATTRIB(EGL_RENDER_BUFFER, EGL_SINGLE_BUFFER);
+
+    if (_glfw.platform.platformID == GLFW_PLATFORM_WAYLAND)
+    {
+        if (_glfw.egl.EXT_present_opaque)
+            SET_ATTRIB(EGL_PRESENT_OPAQUE_EXT, !fbconfig->transparent);
+    }
+
+    SET_ATTRIB(EGL_NONE, EGL_NONE);
+
+    native = _glfw.platform.getEGLNativeWindow(window);
+    // HACK: ANGLE does not implement eglCreatePlatformWindowSurfaceEXT
+    //       despite reporting EGL_EXT_platform_base
+    if (_glfw.egl.platform && _glfw.egl.platform != EGL_PLATFORM_ANGLE_ANGLE)
+    {
+        window->context.egl.surface =
+            eglCreatePlatformWindowSurfaceEXT(_glfw.egl.display, config, native, attribs);
+    }
+    else
+    {
+        window->context.egl.surface =
+            eglCreateWindowSurface(_glfw.egl.display, config, native, attribs);
+    }
+
+    if (window->context.egl.surface == EGL_NO_SURFACE)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGL: Failed to create window surface: %s",
+                        getEGLErrorString(eglGetError()));
+        return GLFW_FALSE;
+    }
+
+    window->context.egl.config = config;
+
+    // Load the appropriate client library
+    if (!_glfw.egl.KHR_get_all_proc_addresses)
+    {
+        int i;
+        const char** sonames;
+        const char* es1sonames[] =
+        {
+#if defined(_GLFW_GLESV1_LIBRARY)
+            _GLFW_GLESV1_LIBRARY,
+#elif defined(_GLFW_WIN32)
+            "GLESv1_CM.dll",
+            "libGLES_CM.dll",
+#elif defined(_GLFW_COCOA)
+            "libGLESv1_CM.dylib",
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+            "libGLESv1_CM.so",
+#else
+            "libGLESv1_CM.so.1",
+            "libGLES_CM.so.1",
+#endif
+            NULL
+        };
+        const char* es2sonames[] =
+        {
+#if defined(_GLFW_GLESV2_LIBRARY)
+            _GLFW_GLESV2_LIBRARY,
+#elif defined(_GLFW_WIN32)
+            "GLESv2.dll",
+            "libGLESv2.dll",
+#elif defined(_GLFW_COCOA)
+            "libGLESv2.dylib",
+#elif defined(__CYGWIN__)
+            "libGLESv2-2.so",
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+            "libGLESv2.so",
+#else
+            "libGLESv2.so.2",
+#endif
+            NULL
+        };
+        const char* glsonames[] =
+        {
+#if defined(_GLFW_OPENGL_LIBRARY)
+            _GLFW_OPENGL_LIBRARY,
+#elif defined(_GLFW_WIN32)
+#elif defined(_GLFW_COCOA)
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+            "libGL.so",
+#else
+            "libOpenGL.so.0",
+            "libGL.so.1",
+#endif
+            NULL
+        };
+
+        if (ctxconfig->client == GLFW_OPENGL_ES_API)
+        {
+            if (ctxconfig->major == 1)
+                sonames = es1sonames;
+            else
+                sonames = es2sonames;
+        }
+        else
+            sonames = glsonames;
+
+        for (i = 0;  sonames[i];  i++)
+        {
+            // HACK: Match presence of lib prefix to increase chance of finding
+            //       a matching pair in the jungle that is Win32 EGL/GLES
+            if (_glfw.egl.prefix != (strncmp(sonames[i], "lib", 3) == 0))
+                continue;
+
+            window->context.egl.client = _glfwPlatformLoadModule(sonames[i]);
+            if (window->context.egl.client)
+                break;
+        }
+
+        if (!window->context.egl.client)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "EGL: Failed to load client library");
+            return GLFW_FALSE;
+        }
+    }
+
+    window->context.makeCurrent = makeContextCurrentEGL;
+    window->context.swapBuffers = swapBuffersEGL;
+    window->context.swapInterval = swapIntervalEGL;
+    window->context.extensionSupported = extensionSupportedEGL;
+    window->context.getProcAddress = getProcAddressEGL;
+    window->context.destroy = destroyContextEGL;
+
+    return GLFW_TRUE;
+}
+
+#undef SET_ATTRIB
+
+// Returns the Visual and depth of the chosen EGLConfig
+//
+#if defined(_GLFW_X11)
+GLFWbool _glfwChooseVisualEGL(const _GLFWwndconfig* wndconfig,
+                              const _GLFWctxconfig* ctxconfig,
+                              const _GLFWfbconfig* fbconfig,
+                              Visual** visual, int* depth)
+{
+    XVisualInfo* result;
+    XVisualInfo desired;
+    EGLConfig native;
+    EGLint visualID = 0, count = 0;
+    const long vimask = VisualScreenMask | VisualIDMask;
+
+    if (!chooseEGLConfig(ctxconfig, fbconfig, &native))
+        return GLFW_FALSE;
+
+    eglGetConfigAttrib(_glfw.egl.display, native,
+                       EGL_NATIVE_VISUAL_ID, &visualID);
+
+    desired.screen = _glfw.x11.screen;
+    desired.visualid = visualID;
+
+    result = XGetVisualInfo(_glfw.x11.display, vimask, &desired, &count);
+    if (!result)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "EGL: Failed to retrieve Visual for EGLConfig");
+        return GLFW_FALSE;
+    }
+
+    *visual = result->visual;
+    *depth = result->depth;
+
+    XFree(result);
+    return GLFW_TRUE;
+}
+#endif // _GLFW_X11
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI EGLDisplay glfwGetEGLDisplay(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_DISPLAY);
+    return _glfw.egl.display;
+}
+
+GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_CONTEXT);
+
+    if (window->context.source != GLFW_EGL_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return EGL_NO_CONTEXT;
+    }
+
+    return window->context.egl.handle;
+}
+
+GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(EGL_NO_SURFACE);
+
+    if (window->context.source != GLFW_EGL_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return EGL_NO_SURFACE;
+    }
+
+    return window->context.egl.surface;
+}
+

raylib/external/glfw/src/glfw.rc.in

@@ -0,0 +1,30 @@
+
+#include <winver.h>
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION @GLFW_VERSION_MAJOR@,@GLFW_VERSION_MINOR@,@GLFW_VERSION_PATCH@,0
+PRODUCTVERSION @GLFW_VERSION_MAJOR@,@GLFW_VERSION_MINOR@,@GLFW_VERSION_PATCH@,0
+FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+FILEFLAGS 0
+FILEOS VOS_NT_WINDOWS32
+FILETYPE VFT_DLL
+FILESUBTYPE 0
+{
+    BLOCK "StringFileInfo"
+    {
+        BLOCK "040904B0"
+        {
+            VALUE "CompanyName", "GLFW"
+            VALUE "FileDescription", "GLFW @GLFW_VERSION@ DLL"
+            VALUE "FileVersion", "@GLFW_VERSION@"
+            VALUE "OriginalFilename", "glfw3.dll"
+            VALUE "ProductName", "GLFW"
+            VALUE "ProductVersion", "@GLFW_VERSION@"
+        }
+    }
+    BLOCK "VarFileInfo"
+    {
+        VALUE "Translation", 0x409, 1200
+    }
+}
+

raylib/external/glfw/src/glx_context.c

@@ -0,0 +1,719 @@
+//========================================================================
+// GLFW 3.4 GLX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_X11)
+
+#include <string.h>
+#include <stdlib.h>
+#include <assert.h>
+
+#ifndef GLXBadProfileARB
+ #define GLXBadProfileARB 13
+#endif
+
+
+// Returns the specified attribute of the specified GLXFBConfig
+//
+static int getGLXFBConfigAttrib(GLXFBConfig fbconfig, int attrib)
+{
+    int value;
+    glXGetFBConfigAttrib(_glfw.x11.display, fbconfig, attrib, &value);
+    return value;
+}
+
+// Return the GLXFBConfig most closely matching the specified hints
+//
+static GLFWbool chooseGLXFBConfig(const _GLFWfbconfig* desired,
+                                  GLXFBConfig* result)
+{
+    GLXFBConfig* nativeConfigs;
+    _GLFWfbconfig* usableConfigs;
+    const _GLFWfbconfig* closest;
+    int nativeCount, usableCount;
+    const char* vendor;
+    GLFWbool trustWindowBit = GLFW_TRUE;
+
+    // HACK: This is a (hopefully temporary) workaround for Chromium
+    //       (VirtualBox GL) not setting the window bit on any GLXFBConfigs
+    vendor = glXGetClientString(_glfw.x11.display, GLX_VENDOR);
+    if (vendor && strcmp(vendor, "Chromium") == 0)
+        trustWindowBit = GLFW_FALSE;
+
+    nativeConfigs =
+        glXGetFBConfigs(_glfw.x11.display, _glfw.x11.screen, &nativeCount);
+    if (!nativeConfigs || !nativeCount)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "GLX: No GLXFBConfigs returned");
+        return GLFW_FALSE;
+    }
+
+    usableConfigs = _glfw_calloc(nativeCount, sizeof(_GLFWfbconfig));
+    usableCount = 0;
+
+    for (int i = 0;  i < nativeCount;  i++)
+    {
+        const GLXFBConfig n = nativeConfigs[i];
+        _GLFWfbconfig* u = usableConfigs + usableCount;
+
+        // Only consider RGBA GLXFBConfigs
+        if (!(getGLXFBConfigAttrib(n, GLX_RENDER_TYPE) & GLX_RGBA_BIT))
+            continue;
+
+        // Only consider window GLXFBConfigs
+        if (!(getGLXFBConfigAttrib(n, GLX_DRAWABLE_TYPE) & GLX_WINDOW_BIT))
+        {
+            if (trustWindowBit)
+                continue;
+        }
+
+        if (getGLXFBConfigAttrib(n, GLX_DOUBLEBUFFER) != desired->doublebuffer)
+            continue;
+
+        if (desired->transparent)
+        {
+            XVisualInfo* vi = glXGetVisualFromFBConfig(_glfw.x11.display, n);
+            if (vi)
+            {
+                u->transparent = _glfwIsVisualTransparentX11(vi->visual);
+                XFree(vi);
+            }
+        }
+
+        u->redBits = getGLXFBConfigAttrib(n, GLX_RED_SIZE);
+        u->greenBits = getGLXFBConfigAttrib(n, GLX_GREEN_SIZE);
+        u->blueBits = getGLXFBConfigAttrib(n, GLX_BLUE_SIZE);
+
+        u->alphaBits = getGLXFBConfigAttrib(n, GLX_ALPHA_SIZE);
+        u->depthBits = getGLXFBConfigAttrib(n, GLX_DEPTH_SIZE);
+        u->stencilBits = getGLXFBConfigAttrib(n, GLX_STENCIL_SIZE);
+
+        u->accumRedBits = getGLXFBConfigAttrib(n, GLX_ACCUM_RED_SIZE);
+        u->accumGreenBits = getGLXFBConfigAttrib(n, GLX_ACCUM_GREEN_SIZE);
+        u->accumBlueBits = getGLXFBConfigAttrib(n, GLX_ACCUM_BLUE_SIZE);
+        u->accumAlphaBits = getGLXFBConfigAttrib(n, GLX_ACCUM_ALPHA_SIZE);
+
+        u->auxBuffers = getGLXFBConfigAttrib(n, GLX_AUX_BUFFERS);
+
+        if (getGLXFBConfigAttrib(n, GLX_STEREO))
+            u->stereo = GLFW_TRUE;
+
+        if (_glfw.glx.ARB_multisample)
+            u->samples = getGLXFBConfigAttrib(n, GLX_SAMPLES);
+
+        if (_glfw.glx.ARB_framebuffer_sRGB || _glfw.glx.EXT_framebuffer_sRGB)
+            u->sRGB = getGLXFBConfigAttrib(n, GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB);
+
+        u->handle = (uintptr_t) n;
+        usableCount++;
+    }
+
+    closest = _glfwChooseFBConfig(desired, usableConfigs, usableCount);
+    if (closest)
+        *result = (GLXFBConfig) closest->handle;
+
+    XFree(nativeConfigs);
+    _glfw_free(usableConfigs);
+
+    return closest != NULL;
+}
+
+// Create the OpenGL context using legacy API
+//
+static GLXContext createLegacyContextGLX(_GLFWwindow* window,
+                                         GLXFBConfig fbconfig,
+                                         GLXContext share)
+{
+    return glXCreateNewContext(_glfw.x11.display,
+                               fbconfig,
+                               GLX_RGBA_TYPE,
+                               share,
+                               True);
+}
+
+static void makeContextCurrentGLX(_GLFWwindow* window)
+{
+    if (window)
+    {
+        if (!glXMakeCurrent(_glfw.x11.display,
+                            window->context.glx.window,
+                            window->context.glx.handle))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "GLX: Failed to make context current");
+            return;
+        }
+    }
+    else
+    {
+        if (!glXMakeCurrent(_glfw.x11.display, None, NULL))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "GLX: Failed to clear current context");
+            return;
+        }
+    }
+
+    _glfwPlatformSetTls(&_glfw.contextSlot, window);
+}
+
+static void swapBuffersGLX(_GLFWwindow* window)
+{
+    glXSwapBuffers(_glfw.x11.display, window->context.glx.window);
+}
+
+static void swapIntervalGLX(int interval)
+{
+    _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    assert(window != NULL);
+
+    if (_glfw.glx.EXT_swap_control)
+    {
+        _glfw.glx.SwapIntervalEXT(_glfw.x11.display,
+                                  window->context.glx.window,
+                                  interval);
+    }
+    else if (_glfw.glx.MESA_swap_control)
+        _glfw.glx.SwapIntervalMESA(interval);
+    else if (_glfw.glx.SGI_swap_control)
+    {
+        if (interval > 0)
+            _glfw.glx.SwapIntervalSGI(interval);
+    }
+}
+
+static int extensionSupportedGLX(const char* extension)
+{
+    const char* extensions =
+        glXQueryExtensionsString(_glfw.x11.display, _glfw.x11.screen);
+    if (extensions)
+    {
+        if (_glfwStringInExtensionString(extension, extensions))
+            return GLFW_TRUE;
+    }
+
+    return GLFW_FALSE;
+}
+
+static GLFWglproc getProcAddressGLX(const char* procname)
+{
+    if (_glfw.glx.GetProcAddress)
+        return _glfw.glx.GetProcAddress((const GLubyte*) procname);
+    else if (_glfw.glx.GetProcAddressARB)
+        return _glfw.glx.GetProcAddressARB((const GLubyte*) procname);
+    else
+    {
+        // NOTE: glvnd provides GLX 1.4, so this can only happen with libGL
+        return _glfwPlatformGetModuleSymbol(_glfw.glx.handle, procname);
+    }
+}
+
+static void destroyContextGLX(_GLFWwindow* window)
+{
+    if (window->context.glx.window)
+    {
+        glXDestroyWindow(_glfw.x11.display, window->context.glx.window);
+        window->context.glx.window = None;
+    }
+
+    if (window->context.glx.handle)
+    {
+        glXDestroyContext(_glfw.x11.display, window->context.glx.handle);
+        window->context.glx.handle = NULL;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Initialize GLX
+//
+GLFWbool _glfwInitGLX(void)
+{
+    const char* sonames[] =
+    {
+#if defined(_GLFW_GLX_LIBRARY)
+        _GLFW_GLX_LIBRARY,
+#elif defined(__CYGWIN__)
+        "libGL-1.so",
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+        "libGL.so",
+#else
+        "libGLX.so.0",
+        "libGL.so.1",
+        "libGL.so",
+#endif
+        NULL
+    };
+
+    if (_glfw.glx.handle)
+        return GLFW_TRUE;
+
+    for (int i = 0;  sonames[i];  i++)
+    {
+        _glfw.glx.handle = _glfwPlatformLoadModule(sonames[i]);
+        if (_glfw.glx.handle)
+            break;
+    }
+
+    if (!_glfw.glx.handle)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "GLX: Failed to load GLX");
+        return GLFW_FALSE;
+    }
+
+    _glfw.glx.GetFBConfigs = (PFNGLXGETFBCONFIGSPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetFBConfigs");
+    _glfw.glx.GetFBConfigAttrib = (PFNGLXGETFBCONFIGATTRIBPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetFBConfigAttrib");
+    _glfw.glx.GetClientString = (PFNGLXGETCLIENTSTRINGPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetClientString");
+    _glfw.glx.QueryExtension = (PFNGLXQUERYEXTENSIONPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXQueryExtension");
+    _glfw.glx.QueryVersion = (PFNGLXQUERYVERSIONPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXQueryVersion");
+    _glfw.glx.DestroyContext = (PFNGLXDESTROYCONTEXTPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXDestroyContext");
+    _glfw.glx.MakeCurrent = (PFNGLXMAKECURRENTPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXMakeCurrent");
+    _glfw.glx.SwapBuffers = (PFNGLXSWAPBUFFERSPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXSwapBuffers");
+    _glfw.glx.QueryExtensionsString = (PFNGLXQUERYEXTENSIONSSTRINGPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXQueryExtensionsString");
+    _glfw.glx.CreateNewContext = (PFNGLXCREATENEWCONTEXTPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXCreateNewContext");
+    _glfw.glx.CreateWindow = (PFNGLXCREATEWINDOWPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXCreateWindow");
+    _glfw.glx.DestroyWindow = (PFNGLXDESTROYWINDOWPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXDestroyWindow");
+    _glfw.glx.GetVisualFromFBConfig = (PFNGLXGETVISUALFROMFBCONFIGPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetVisualFromFBConfig");
+
+    if (!_glfw.glx.GetFBConfigs ||
+        !_glfw.glx.GetFBConfigAttrib ||
+        !_glfw.glx.GetClientString ||
+        !_glfw.glx.QueryExtension ||
+        !_glfw.glx.QueryVersion ||
+        !_glfw.glx.DestroyContext ||
+        !_glfw.glx.MakeCurrent ||
+        !_glfw.glx.SwapBuffers ||
+        !_glfw.glx.QueryExtensionsString ||
+        !_glfw.glx.CreateNewContext ||
+        !_glfw.glx.CreateWindow ||
+        !_glfw.glx.DestroyWindow ||
+        !_glfw.glx.GetVisualFromFBConfig)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "GLX: Failed to load required entry points");
+        return GLFW_FALSE;
+    }
+
+    // NOTE: Unlike GLX 1.3 entry points these are not required to be present
+    _glfw.glx.GetProcAddress = (PFNGLXGETPROCADDRESSPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetProcAddress");
+    _glfw.glx.GetProcAddressARB = (PFNGLXGETPROCADDRESSPROC)
+        _glfwPlatformGetModuleSymbol(_glfw.glx.handle, "glXGetProcAddressARB");
+
+    if (!glXQueryExtension(_glfw.x11.display,
+                           &_glfw.glx.errorBase,
+                           &_glfw.glx.eventBase))
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "GLX: GLX extension not found");
+        return GLFW_FALSE;
+    }
+
+    if (!glXQueryVersion(_glfw.x11.display, &_glfw.glx.major, &_glfw.glx.minor))
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "GLX: Failed to query GLX version");
+        return GLFW_FALSE;
+    }
+
+    if (_glfw.glx.major == 1 && _glfw.glx.minor < 3)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "GLX: GLX version 1.3 is required");
+        return GLFW_FALSE;
+    }
+
+    if (extensionSupportedGLX("GLX_EXT_swap_control"))
+    {
+        _glfw.glx.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)
+            getProcAddressGLX("glXSwapIntervalEXT");
+
+        if (_glfw.glx.SwapIntervalEXT)
+            _glfw.glx.EXT_swap_control = GLFW_TRUE;
+    }
+
+    if (extensionSupportedGLX("GLX_SGI_swap_control"))
+    {
+        _glfw.glx.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)
+            getProcAddressGLX("glXSwapIntervalSGI");
+
+        if (_glfw.glx.SwapIntervalSGI)
+            _glfw.glx.SGI_swap_control = GLFW_TRUE;
+    }
+
+    if (extensionSupportedGLX("GLX_MESA_swap_control"))
+    {
+        _glfw.glx.SwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)
+            getProcAddressGLX("glXSwapIntervalMESA");
+
+        if (_glfw.glx.SwapIntervalMESA)
+            _glfw.glx.MESA_swap_control = GLFW_TRUE;
+    }
+
+    if (extensionSupportedGLX("GLX_ARB_multisample"))
+        _glfw.glx.ARB_multisample = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_ARB_framebuffer_sRGB"))
+        _glfw.glx.ARB_framebuffer_sRGB = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_EXT_framebuffer_sRGB"))
+        _glfw.glx.EXT_framebuffer_sRGB = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_ARB_create_context"))
+    {
+        _glfw.glx.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
+            getProcAddressGLX("glXCreateContextAttribsARB");
+
+        if (_glfw.glx.CreateContextAttribsARB)
+            _glfw.glx.ARB_create_context = GLFW_TRUE;
+    }
+
+    if (extensionSupportedGLX("GLX_ARB_create_context_robustness"))
+        _glfw.glx.ARB_create_context_robustness = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_ARB_create_context_profile"))
+        _glfw.glx.ARB_create_context_profile = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_EXT_create_context_es2_profile"))
+        _glfw.glx.EXT_create_context_es2_profile = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_ARB_create_context_no_error"))
+        _glfw.glx.ARB_create_context_no_error = GLFW_TRUE;
+
+    if (extensionSupportedGLX("GLX_ARB_context_flush_control"))
+        _glfw.glx.ARB_context_flush_control = GLFW_TRUE;
+
+    return GLFW_TRUE;
+}
+
+// Terminate GLX
+//
+void _glfwTerminateGLX(void)
+{
+    // NOTE: This function must not call any X11 functions, as it is called
+    //       after XCloseDisplay (see _glfwTerminateX11 for details)
+
+    if (_glfw.glx.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.glx.handle);
+        _glfw.glx.handle = NULL;
+    }
+}
+
+#define SET_ATTRIB(a, v) \
+{ \
+    assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[index++] = a; \
+    attribs[index++] = v; \
+}
+
+// Create the OpenGL or OpenGL ES context
+//
+GLFWbool _glfwCreateContextGLX(_GLFWwindow* window,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig)
+{
+    int attribs[40];
+    GLXFBConfig native = NULL;
+    GLXContext share = NULL;
+
+    if (ctxconfig->share)
+        share = ctxconfig->share->context.glx.handle;
+
+    if (!chooseGLXFBConfig(fbconfig, &native))
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "GLX: Failed to find a suitable GLXFBConfig");
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        if (!_glfw.glx.ARB_create_context ||
+            !_glfw.glx.ARB_create_context_profile ||
+            !_glfw.glx.EXT_create_context_es2_profile)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "GLX: OpenGL ES requested but GLX_EXT_create_context_es2_profile is unavailable");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->forward)
+    {
+        if (!_glfw.glx.ARB_create_context)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "GLX: Forward compatibility requested but GLX_ARB_create_context_profile is unavailable");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->profile)
+    {
+        if (!_glfw.glx.ARB_create_context ||
+            !_glfw.glx.ARB_create_context_profile)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "GLX: An OpenGL profile requested but GLX_ARB_create_context_profile is unavailable");
+            return GLFW_FALSE;
+        }
+    }
+
+    _glfwGrabErrorHandlerX11();
+
+    if (_glfw.glx.ARB_create_context)
+    {
+        int index = 0, mask = 0, flags = 0;
+
+        if (ctxconfig->client == GLFW_OPENGL_API)
+        {
+            if (ctxconfig->forward)
+                flags |= GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
+
+            if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
+                mask |= GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
+            else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+                mask |= GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
+        }
+        else
+            mask |= GLX_CONTEXT_ES2_PROFILE_BIT_EXT;
+
+        if (ctxconfig->debug)
+            flags |= GLX_CONTEXT_DEBUG_BIT_ARB;
+
+        if (ctxconfig->robustness)
+        {
+            if (_glfw.glx.ARB_create_context_robustness)
+            {
+                if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
+                {
+                    SET_ATTRIB(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
+                               GLX_NO_RESET_NOTIFICATION_ARB);
+                }
+                else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
+                {
+                    SET_ATTRIB(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
+                               GLX_LOSE_CONTEXT_ON_RESET_ARB);
+                }
+
+                flags |= GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB;
+            }
+        }
+
+        if (ctxconfig->release)
+        {
+            if (_glfw.glx.ARB_context_flush_control)
+            {
+                if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
+                {
+                    SET_ATTRIB(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB,
+                               GLX_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB);
+                }
+                else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
+                {
+                    SET_ATTRIB(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB,
+                               GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB);
+                }
+            }
+        }
+
+        if (ctxconfig->noerror)
+        {
+            if (_glfw.glx.ARB_create_context_no_error)
+                SET_ATTRIB(GLX_CONTEXT_OPENGL_NO_ERROR_ARB, GLFW_TRUE);
+        }
+
+        // NOTE: Only request an explicitly versioned context when necessary, as
+        //       explicitly requesting version 1.0 does not always return the
+        //       highest version supported by the driver
+        if (ctxconfig->major != 1 || ctxconfig->minor != 0)
+        {
+            SET_ATTRIB(GLX_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major);
+            SET_ATTRIB(GLX_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor);
+        }
+
+        if (mask)
+            SET_ATTRIB(GLX_CONTEXT_PROFILE_MASK_ARB, mask);
+
+        if (flags)
+            SET_ATTRIB(GLX_CONTEXT_FLAGS_ARB, flags);
+
+        SET_ATTRIB(None, None);
+
+        window->context.glx.handle =
+            _glfw.glx.CreateContextAttribsARB(_glfw.x11.display,
+                                              native,
+                                              share,
+                                              True,
+                                              attribs);
+
+        // HACK: This is a fallback for broken versions of the Mesa
+        //       implementation of GLX_ARB_create_context_profile that fail
+        //       default 1.0 context creation with a GLXBadProfileARB error in
+        //       violation of the extension spec
+        if (!window->context.glx.handle)
+        {
+            if (_glfw.x11.errorCode == _glfw.glx.errorBase + GLXBadProfileARB &&
+                ctxconfig->client == GLFW_OPENGL_API &&
+                ctxconfig->profile == GLFW_OPENGL_ANY_PROFILE &&
+                ctxconfig->forward == GLFW_FALSE)
+            {
+                window->context.glx.handle =
+                    createLegacyContextGLX(window, native, share);
+            }
+        }
+    }
+    else
+    {
+        window->context.glx.handle =
+            createLegacyContextGLX(window, native, share);
+    }
+
+    _glfwReleaseErrorHandlerX11();
+
+    if (!window->context.glx.handle)
+    {
+        _glfwInputErrorX11(GLFW_VERSION_UNAVAILABLE, "GLX: Failed to create context");
+        return GLFW_FALSE;
+    }
+
+    window->context.glx.window =
+        glXCreateWindow(_glfw.x11.display, native, window->x11.handle, NULL);
+    if (!window->context.glx.window)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "GLX: Failed to create window");
+        return GLFW_FALSE;
+    }
+
+    window->context.makeCurrent = makeContextCurrentGLX;
+    window->context.swapBuffers = swapBuffersGLX;
+    window->context.swapInterval = swapIntervalGLX;
+    window->context.extensionSupported = extensionSupportedGLX;
+    window->context.getProcAddress = getProcAddressGLX;
+    window->context.destroy = destroyContextGLX;
+
+    return GLFW_TRUE;
+}
+
+#undef SET_ATTRIB
+
+// Returns the Visual and depth of the chosen GLXFBConfig
+//
+GLFWbool _glfwChooseVisualGLX(const _GLFWwndconfig* wndconfig,
+                              const _GLFWctxconfig* ctxconfig,
+                              const _GLFWfbconfig* fbconfig,
+                              Visual** visual, int* depth)
+{
+    GLXFBConfig native;
+    XVisualInfo* result;
+
+    if (!chooseGLXFBConfig(fbconfig, &native))
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "GLX: Failed to find a suitable GLXFBConfig");
+        return GLFW_FALSE;
+    }
+
+    result = glXGetVisualFromFBConfig(_glfw.x11.display, native);
+    if (!result)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "GLX: Failed to retrieve Visual for GLXFBConfig");
+        return GLFW_FALSE;
+    }
+
+    *visual = result->visual;
+    *depth  = result->depth;
+
+    XFree(result);
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "GLX: Platform not initialized");
+        return NULL;
+    }
+
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return NULL;
+    }
+
+    return window->context.glx.handle;
+}
+
+GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(None);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "GLX: Platform not initialized");
+        return None;
+    }
+
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return None;
+    }
+
+    return window->context.glx.window;
+}
+
+#endif // _GLFW_X11
+

raylib/external/glfw/src/init.c

@@ -0,0 +1,528 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <assert.h>
+
+
+// NOTE: The global variables below comprise all mutable global data in GLFW
+//       Any other mutable global variable is a bug
+
+// This contains all mutable state shared between compilation units of GLFW
+//
+_GLFWlibrary _glfw = { GLFW_FALSE };
+
+// These are outside of _glfw so they can be used before initialization and
+// after termination without special handling when _glfw is cleared to zero
+//
+static _GLFWerror _glfwMainThreadError;
+static GLFWerrorfun _glfwErrorCallback;
+static GLFWallocator _glfwInitAllocator;
+static _GLFWinitconfig _glfwInitHints =
+{
+    .hatButtons = GLFW_TRUE,
+    .angleType = GLFW_ANGLE_PLATFORM_TYPE_NONE,
+    .platformID = GLFW_ANY_PLATFORM,
+    .vulkanLoader = NULL,
+    .ns =
+    {
+        .menubar = GLFW_TRUE,
+        .chdir = GLFW_TRUE
+    },
+    .x11 =
+    {
+        .xcbVulkanSurface = GLFW_TRUE,
+    },
+    .wl =
+    {
+        .libdecorMode = GLFW_WAYLAND_PREFER_LIBDECOR
+    },
+};
+
+// The allocation function used when no custom allocator is set
+//
+static void* defaultAllocate(size_t size, void* user)
+{
+    return malloc(size);
+}
+
+// The deallocation function used when no custom allocator is set
+//
+static void defaultDeallocate(void* block, void* user)
+{
+    free(block);
+}
+
+// The reallocation function used when no custom allocator is set
+//
+static void* defaultReallocate(void* block, size_t size, void* user)
+{
+    return realloc(block, size);
+}
+
+// Terminate the library
+//
+static void terminate(void)
+{
+    int i;
+
+    memset(&_glfw.callbacks, 0, sizeof(_glfw.callbacks));
+
+    while (_glfw.windowListHead)
+        glfwDestroyWindow((GLFWwindow*) _glfw.windowListHead);
+
+    while (_glfw.cursorListHead)
+        glfwDestroyCursor((GLFWcursor*) _glfw.cursorListHead);
+
+    for (i = 0;  i < _glfw.monitorCount;  i++)
+    {
+        _GLFWmonitor* monitor = _glfw.monitors[i];
+        if (monitor->originalRamp.size)
+            _glfw.platform.setGammaRamp(monitor, &monitor->originalRamp);
+        _glfwFreeMonitor(monitor);
+    }
+
+    _glfw_free(_glfw.monitors);
+    _glfw.monitors = NULL;
+    _glfw.monitorCount = 0;
+
+    _glfw_free(_glfw.mappings);
+    _glfw.mappings = NULL;
+    _glfw.mappingCount = 0;
+
+    _glfwTerminateVulkan();
+    _glfw.platform.terminateJoysticks();
+    _glfw.platform.terminate();
+
+    _glfw.initialized = GLFW_FALSE;
+
+    while (_glfw.errorListHead)
+    {
+        _GLFWerror* error = _glfw.errorListHead;
+        _glfw.errorListHead = error->next;
+        _glfw_free(error);
+    }
+
+    _glfwPlatformDestroyTls(&_glfw.contextSlot);
+    _glfwPlatformDestroyTls(&_glfw.errorSlot);
+    _glfwPlatformDestroyMutex(&_glfw.errorLock);
+
+    memset(&_glfw, 0, sizeof(_glfw));
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Encode a Unicode code point to a UTF-8 stream
+// Based on cutef8 by Jeff Bezanson (Public Domain)
+//
+size_t _glfwEncodeUTF8(char* s, uint32_t codepoint)
+{
+    size_t count = 0;
+
+    if (codepoint < 0x80)
+        s[count++] = (char) codepoint;
+    else if (codepoint < 0x800)
+    {
+        s[count++] = (codepoint >> 6) | 0xc0;
+        s[count++] = (codepoint & 0x3f) | 0x80;
+    }
+    else if (codepoint < 0x10000)
+    {
+        s[count++] = (codepoint >> 12) | 0xe0;
+        s[count++] = ((codepoint >> 6) & 0x3f) | 0x80;
+        s[count++] = (codepoint & 0x3f) | 0x80;
+    }
+    else if (codepoint < 0x110000)
+    {
+        s[count++] = (codepoint >> 18) | 0xf0;
+        s[count++] = ((codepoint >> 12) & 0x3f) | 0x80;
+        s[count++] = ((codepoint >> 6) & 0x3f) | 0x80;
+        s[count++] = (codepoint & 0x3f) | 0x80;
+    }
+
+    return count;
+}
+
+// Splits and translates a text/uri-list into separate file paths
+// NOTE: This function destroys the provided string
+//
+char** _glfwParseUriList(char* text, int* count)
+{
+    const char* prefix = "file://";
+    char** paths = NULL;
+    char* line;
+
+    *count = 0;
+
+    while ((line = strtok(text, "\r\n")))
+    {
+        char* path;
+
+        text = NULL;
+
+        if (line[0] == '#')
+            continue;
+
+        if (strncmp(line, prefix, strlen(prefix)) == 0)
+        {
+            line += strlen(prefix);
+            // TODO: Validate hostname
+            while (*line != '/')
+                line++;
+        }
+
+        (*count)++;
+
+        path = _glfw_calloc(strlen(line) + 1, 1);
+        paths = _glfw_realloc(paths, *count * sizeof(char*));
+        paths[*count - 1] = path;
+
+        while (*line)
+        {
+            if (line[0] == '%' && line[1] && line[2])
+            {
+                const char digits[3] = { line[1], line[2], '\0' };
+                *path = (char) strtol(digits, NULL, 16);
+                line += 2;
+            }
+            else
+                *path = *line;
+
+            path++;
+            line++;
+        }
+    }
+
+    return paths;
+}
+
+char* _glfw_strdup(const char* source)
+{
+    const size_t length = strlen(source);
+    char* result = _glfw_calloc(length + 1, 1);
+    strcpy(result, source);
+    return result;
+}
+
+int _glfw_min(int a, int b)
+{
+    return a < b ? a : b;
+}
+
+int _glfw_max(int a, int b)
+{
+    return a > b ? a : b;
+}
+
+void* _glfw_calloc(size_t count, size_t size)
+{
+    if (count && size)
+    {
+        void* block;
+
+        if (count > SIZE_MAX / size)
+        {
+            _glfwInputError(GLFW_INVALID_VALUE, "Allocation size overflow");
+            return NULL;
+        }
+
+        block = _glfw.allocator.allocate(count * size, _glfw.allocator.user);
+        if (block)
+            return memset(block, 0, count * size);
+        else
+        {
+            _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
+            return NULL;
+        }
+    }
+    else
+        return NULL;
+}
+
+void* _glfw_realloc(void* block, size_t size)
+{
+    if (block && size)
+    {
+        void* resized = _glfw.allocator.reallocate(block, size, _glfw.allocator.user);
+        if (resized)
+            return resized;
+        else
+        {
+            _glfwInputError(GLFW_OUT_OF_MEMORY, NULL);
+            return NULL;
+        }
+    }
+    else if (block)
+    {
+        _glfw_free(block);
+        return NULL;
+    }
+    else
+        return _glfw_calloc(1, size);
+}
+
+void _glfw_free(void* block)
+{
+    if (block)
+        _glfw.allocator.deallocate(block, _glfw.allocator.user);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                         GLFW event API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+// Notifies shared code of an error
+//
+void _glfwInputError(int code, const char* format, ...)
+{
+    _GLFWerror* error;
+    char description[_GLFW_MESSAGE_SIZE];
+
+    if (format)
+    {
+        va_list vl;
+
+        va_start(vl, format);
+        vsnprintf(description, sizeof(description), format, vl);
+        va_end(vl);
+
+        description[sizeof(description) - 1] = '\0';
+    }
+    else
+    {
+        if (code == GLFW_NOT_INITIALIZED)
+            strcpy(description, "The GLFW library is not initialized");
+        else if (code == GLFW_NO_CURRENT_CONTEXT)
+            strcpy(description, "There is no current context");
+        else if (code == GLFW_INVALID_ENUM)
+            strcpy(description, "Invalid argument for enum parameter");
+        else if (code == GLFW_INVALID_VALUE)
+            strcpy(description, "Invalid value for parameter");
+        else if (code == GLFW_OUT_OF_MEMORY)
+            strcpy(description, "Out of memory");
+        else if (code == GLFW_API_UNAVAILABLE)
+            strcpy(description, "The requested API is unavailable");
+        else if (code == GLFW_VERSION_UNAVAILABLE)
+            strcpy(description, "The requested API version is unavailable");
+        else if (code == GLFW_PLATFORM_ERROR)
+            strcpy(description, "A platform-specific error occurred");
+        else if (code == GLFW_FORMAT_UNAVAILABLE)
+            strcpy(description, "The requested format is unavailable");
+        else if (code == GLFW_NO_WINDOW_CONTEXT)
+            strcpy(description, "The specified window has no context");
+        else if (code == GLFW_CURSOR_UNAVAILABLE)
+            strcpy(description, "The specified cursor shape is unavailable");
+        else if (code == GLFW_FEATURE_UNAVAILABLE)
+            strcpy(description, "The requested feature cannot be implemented for this platform");
+        else if (code == GLFW_FEATURE_UNIMPLEMENTED)
+            strcpy(description, "The requested feature has not yet been implemented for this platform");
+        else if (code == GLFW_PLATFORM_UNAVAILABLE)
+            strcpy(description, "The requested platform is unavailable");
+        else
+            strcpy(description, "ERROR: UNKNOWN GLFW ERROR");
+    }
+
+    if (_glfw.initialized)
+    {
+        error = _glfwPlatformGetTls(&_glfw.errorSlot);
+        if (!error)
+        {
+            error = _glfw_calloc(1, sizeof(_GLFWerror));
+            _glfwPlatformSetTls(&_glfw.errorSlot, error);
+            _glfwPlatformLockMutex(&_glfw.errorLock);
+            error->next = _glfw.errorListHead;
+            _glfw.errorListHead = error;
+            _glfwPlatformUnlockMutex(&_glfw.errorLock);
+        }
+    }
+    else
+        error = &_glfwMainThreadError;
+
+    error->code = code;
+    strcpy(error->description, description);
+
+    if (_glfwErrorCallback)
+        _glfwErrorCallback(code, description);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI int glfwInit(void)
+{
+    if (_glfw.initialized)
+        return GLFW_TRUE;
+
+    memset(&_glfw, 0, sizeof(_glfw));
+    _glfw.hints.init = _glfwInitHints;
+
+    _glfw.allocator = _glfwInitAllocator;
+    if (!_glfw.allocator.allocate)
+    {
+        _glfw.allocator.allocate   = defaultAllocate;
+        _glfw.allocator.reallocate = defaultReallocate;
+        _glfw.allocator.deallocate = defaultDeallocate;
+    }
+
+    if (!_glfwSelectPlatform(_glfw.hints.init.platformID, &_glfw.platform))
+        return GLFW_FALSE;
+
+    if (!_glfw.platform.init())
+    {
+        terminate();
+        return GLFW_FALSE;
+    }
+
+    if (!_glfwPlatformCreateMutex(&_glfw.errorLock) ||
+        !_glfwPlatformCreateTls(&_glfw.errorSlot) ||
+        !_glfwPlatformCreateTls(&_glfw.contextSlot))
+    {
+        terminate();
+        return GLFW_FALSE;
+    }
+
+    _glfwPlatformSetTls(&_glfw.errorSlot, &_glfwMainThreadError);
+
+    _glfwInitGamepadMappings();
+
+    _glfwPlatformInitTimer();
+    _glfw.timer.offset = _glfwPlatformGetTimerValue();
+
+    _glfw.initialized = GLFW_TRUE;
+
+    glfwDefaultWindowHints();
+    return GLFW_TRUE;
+}
+
+GLFWAPI void glfwTerminate(void)
+{
+    if (!_glfw.initialized)
+        return;
+
+    terminate();
+}
+
+GLFWAPI void glfwInitHint(int hint, int value)
+{
+    switch (hint)
+    {
+        case GLFW_JOYSTICK_HAT_BUTTONS:
+            _glfwInitHints.hatButtons = value;
+            return;
+        case GLFW_ANGLE_PLATFORM_TYPE:
+            _glfwInitHints.angleType = value;
+            return;
+        case GLFW_PLATFORM:
+            _glfwInitHints.platformID = value;
+            return;
+        case GLFW_COCOA_CHDIR_RESOURCES:
+            _glfwInitHints.ns.chdir = value;
+            return;
+        case GLFW_COCOA_MENUBAR:
+            _glfwInitHints.ns.menubar = value;
+            return;
+        case GLFW_X11_XCB_VULKAN_SURFACE:
+            _glfwInitHints.x11.xcbVulkanSurface = value;
+            return;
+        case GLFW_WAYLAND_LIBDECOR:
+            _glfwInitHints.wl.libdecorMode = value;
+            return;
+    }
+
+    _glfwInputError(GLFW_INVALID_ENUM,
+                    "Invalid init hint 0x%08X", hint);
+}
+
+GLFWAPI void glfwInitAllocator(const GLFWallocator* allocator)
+{
+    if (allocator)
+    {
+        if (allocator->allocate && allocator->reallocate && allocator->deallocate)
+            _glfwInitAllocator = *allocator;
+        else
+            _glfwInputError(GLFW_INVALID_VALUE, "Missing function in allocator");
+    }
+    else
+        memset(&_glfwInitAllocator, 0, sizeof(GLFWallocator));
+}
+
+GLFWAPI void glfwInitVulkanLoader(PFN_vkGetInstanceProcAddr loader)
+{
+    _glfwInitHints.vulkanLoader = loader;
+}
+
+GLFWAPI void glfwGetVersion(int* major, int* minor, int* rev)
+{
+    if (major != NULL)
+        *major = GLFW_VERSION_MAJOR;
+    if (minor != NULL)
+        *minor = GLFW_VERSION_MINOR;
+    if (rev != NULL)
+        *rev = GLFW_VERSION_REVISION;
+}
+
+GLFWAPI int glfwGetError(const char** description)
+{
+    _GLFWerror* error;
+    int code = GLFW_NO_ERROR;
+
+    if (description)
+        *description = NULL;
+
+    if (_glfw.initialized)
+        error = _glfwPlatformGetTls(&_glfw.errorSlot);
+    else
+        error = &_glfwMainThreadError;
+
+    if (error)
+    {
+        code = error->code;
+        error->code = GLFW_NO_ERROR;
+        if (description && code)
+            *description = error->description;
+    }
+
+    return code;
+}
+
+GLFWAPI GLFWerrorfun glfwSetErrorCallback(GLFWerrorfun cbfun)
+{
+    _GLFW_SWAP(GLFWerrorfun, _glfwErrorCallback, cbfun);
+    return cbfun;
+}
+

raylib/external/glfw/src/linux_joystick.c

@@ -0,0 +1,436 @@
+//========================================================================
+// GLFW 3.4 Linux - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/inotify.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <dirent.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#ifndef SYN_DROPPED // < v2.6.39 kernel headers
+// Workaround for CentOS-6, which is supported till 2020-11-30, but still on v2.6.32
+#define SYN_DROPPED 3
+#endif
+
+// Apply an EV_KEY event to the specified joystick
+//
+static void handleKeyEvent(_GLFWjoystick* js, int code, int value)
+{
+    _glfwInputJoystickButton(js,
+                             js->linjs.keyMap[code - BTN_MISC],
+                             value ? GLFW_PRESS : GLFW_RELEASE);
+}
+
+// Apply an EV_ABS event to the specified joystick
+//
+static void handleAbsEvent(_GLFWjoystick* js, int code, int value)
+{
+    const int index = js->linjs.absMap[code];
+
+    if (code >= ABS_HAT0X && code <= ABS_HAT3Y)
+    {
+        static const char stateMap[3][3] =
+        {
+            { GLFW_HAT_CENTERED, GLFW_HAT_UP,       GLFW_HAT_DOWN },
+            { GLFW_HAT_LEFT,     GLFW_HAT_LEFT_UP,  GLFW_HAT_LEFT_DOWN },
+            { GLFW_HAT_RIGHT,    GLFW_HAT_RIGHT_UP, GLFW_HAT_RIGHT_DOWN },
+        };
+
+        const int hat = (code - ABS_HAT0X) / 2;
+        const int axis = (code - ABS_HAT0X) % 2;
+        int* state = js->linjs.hats[hat];
+
+        // NOTE: Looking at several input drivers, it seems all hat events use
+        //       -1 for left / up, 0 for centered and 1 for right / down
+        if (value == 0)
+            state[axis] = 0;
+        else if (value < 0)
+            state[axis] = 1;
+        else if (value > 0)
+            state[axis] = 2;
+
+        _glfwInputJoystickHat(js, index, stateMap[state[0]][state[1]]);
+    }
+    else
+    {
+        const struct input_absinfo* info = &js->linjs.absInfo[code];
+        float normalized = value;
+
+        const int range = info->maximum - info->minimum;
+        if (range)
+        {
+            // Normalize to 0.0 -> 1.0
+            normalized = (normalized - info->minimum) / range;
+            // Normalize to -1.0 -> 1.0
+            normalized = normalized * 2.0f - 1.0f;
+        }
+
+        _glfwInputJoystickAxis(js, index, normalized);
+    }
+}
+
+// Poll state of absolute axes
+//
+static void pollAbsState(_GLFWjoystick* js)
+{
+    for (int code = 0;  code < ABS_CNT;  code++)
+    {
+        if (js->linjs.absMap[code] < 0)
+            continue;
+
+        struct input_absinfo* info = &js->linjs.absInfo[code];
+
+        if (ioctl(js->linjs.fd, EVIOCGABS(code), info) < 0)
+            continue;
+
+        handleAbsEvent(js, code, info->value);
+    }
+}
+
+#define isBitSet(bit, arr) (arr[(bit) / 8] & (1 << ((bit) % 8)))
+
+// Attempt to open the specified joystick device
+//
+static GLFWbool openJoystickDevice(const char* path)
+{
+    for (int jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        if (!_glfw.joysticks[jid].connected)
+            continue;
+        if (strcmp(_glfw.joysticks[jid].linjs.path, path) == 0)
+            return GLFW_FALSE;
+    }
+
+    _GLFWjoystickLinux linjs = {0};
+    linjs.fd = open(path, O_RDONLY | O_NONBLOCK | O_CLOEXEC);
+    if (linjs.fd == -1)
+        return GLFW_FALSE;
+
+    char evBits[(EV_CNT + 7) / 8] = {0};
+    char keyBits[(KEY_CNT + 7) / 8] = {0};
+    char absBits[(ABS_CNT + 7) / 8] = {0};
+    struct input_id id;
+
+    if (ioctl(linjs.fd, EVIOCGBIT(0, sizeof(evBits)), evBits) < 0 ||
+        ioctl(linjs.fd, EVIOCGBIT(EV_KEY, sizeof(keyBits)), keyBits) < 0 ||
+        ioctl(linjs.fd, EVIOCGBIT(EV_ABS, sizeof(absBits)), absBits) < 0 ||
+        ioctl(linjs.fd, EVIOCGID, &id) < 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Linux: Failed to query input device: %s",
+                        strerror(errno));
+        close(linjs.fd);
+        return GLFW_FALSE;
+    }
+
+    // Ensure this device supports the events expected of a joystick
+    if (!isBitSet(EV_ABS, evBits))
+    {
+        close(linjs.fd);
+        return GLFW_FALSE;
+    }
+
+    char name[256] = "";
+
+    if (ioctl(linjs.fd, EVIOCGNAME(sizeof(name)), name) < 0)
+        strncpy(name, "Unknown", sizeof(name));
+
+    char guid[33] = "";
+
+    // Generate a joystick GUID that matches the SDL 2.0.5+ one
+    if (id.vendor && id.product && id.version)
+    {
+        sprintf(guid, "%02x%02x0000%02x%02x0000%02x%02x0000%02x%02x0000",
+                id.bustype & 0xff, id.bustype >> 8,
+                id.vendor & 0xff,  id.vendor >> 8,
+                id.product & 0xff, id.product >> 8,
+                id.version & 0xff, id.version >> 8);
+    }
+    else
+    {
+        sprintf(guid, "%02x%02x0000%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x00",
+                id.bustype & 0xff, id.bustype >> 8,
+                name[0], name[1], name[2], name[3],
+                name[4], name[5], name[6], name[7],
+                name[8], name[9], name[10]);
+    }
+
+    int axisCount = 0, buttonCount = 0, hatCount = 0;
+
+    for (int code = BTN_MISC;  code < KEY_CNT;  code++)
+    {
+        if (!isBitSet(code, keyBits))
+            continue;
+
+        linjs.keyMap[code - BTN_MISC] = buttonCount;
+        buttonCount++;
+    }
+
+    for (int code = 0;  code < ABS_CNT;  code++)
+    {
+        linjs.absMap[code] = -1;
+        if (!isBitSet(code, absBits))
+            continue;
+
+        if (code >= ABS_HAT0X && code <= ABS_HAT3Y)
+        {
+            linjs.absMap[code] = hatCount;
+            hatCount++;
+            // Skip the Y axis
+            code++;
+        }
+        else
+        {
+            if (ioctl(linjs.fd, EVIOCGABS(code), &linjs.absInfo[code]) < 0)
+                continue;
+
+            linjs.absMap[code] = axisCount;
+            axisCount++;
+        }
+    }
+
+    _GLFWjoystick* js =
+        _glfwAllocJoystick(name, guid, axisCount, buttonCount, hatCount);
+    if (!js)
+    {
+        close(linjs.fd);
+        return GLFW_FALSE;
+    }
+
+    strncpy(linjs.path, path, sizeof(linjs.path) - 1);
+    memcpy(&js->linjs, &linjs, sizeof(linjs));
+
+    pollAbsState(js);
+
+    _glfwInputJoystick(js, GLFW_CONNECTED);
+    return GLFW_TRUE;
+}
+
+#undef isBitSet
+
+// Frees all resources associated with the specified joystick
+//
+static void closeJoystick(_GLFWjoystick* js)
+{
+    _glfwInputJoystick(js, GLFW_DISCONNECTED);
+    close(js->linjs.fd);
+    _glfwFreeJoystick(js);
+}
+
+// Lexically compare joysticks by name; used by qsort
+//
+static int compareJoysticks(const void* fp, const void* sp)
+{
+    const _GLFWjoystick* fj = fp;
+    const _GLFWjoystick* sj = sp;
+    return strcmp(fj->linjs.path, sj->linjs.path);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwDetectJoystickConnectionLinux(void)
+{
+    if (_glfw.linjs.inotify <= 0)
+        return;
+
+    ssize_t offset = 0;
+    char buffer[16384];
+    const ssize_t size = read(_glfw.linjs.inotify, buffer, sizeof(buffer));
+
+    while (size > offset)
+    {
+        regmatch_t match;
+        const struct inotify_event* e = (struct inotify_event*) (buffer + offset);
+
+        offset += sizeof(struct inotify_event) + e->len;
+
+        if (regexec(&_glfw.linjs.regex, e->name, 1, &match, 0) != 0)
+            continue;
+
+        char path[PATH_MAX];
+        snprintf(path, sizeof(path), "/dev/input/%s", e->name);
+
+        if (e->mask & (IN_CREATE | IN_ATTRIB))
+            openJoystickDevice(path);
+        else if (e->mask & IN_DELETE)
+        {
+            for (int jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+            {
+                if (strcmp(_glfw.joysticks[jid].linjs.path, path) == 0)
+                {
+                    closeJoystick(_glfw.joysticks + jid);
+                    break;
+                }
+            }
+        }
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitJoysticksLinux(void)
+{
+    const char* dirname = "/dev/input";
+
+    _glfw.linjs.inotify = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);
+    if (_glfw.linjs.inotify > 0)
+    {
+        // HACK: Register for IN_ATTRIB to get notified when udev is done
+        //       This works well in practice but the true way is libudev
+
+        _glfw.linjs.watch = inotify_add_watch(_glfw.linjs.inotify,
+                                              dirname,
+                                              IN_CREATE | IN_ATTRIB | IN_DELETE);
+    }
+
+    // Continue without device connection notifications if inotify fails
+
+    _glfw.linjs.regexCompiled = (regcomp(&_glfw.linjs.regex, "^event[0-9]\\+$", 0) == 0);
+    if (!_glfw.linjs.regexCompiled)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Linux: Failed to compile regex");
+        return GLFW_FALSE;
+    }
+
+    int count = 0;
+
+    DIR* dir = opendir(dirname);
+    if (dir)
+    {
+        struct dirent* entry;
+
+        while ((entry = readdir(dir)))
+        {
+            regmatch_t match;
+
+            if (regexec(&_glfw.linjs.regex, entry->d_name, 1, &match, 0) != 0)
+                continue;
+
+            char path[PATH_MAX];
+
+            snprintf(path, sizeof(path), "%s/%s", dirname, entry->d_name);
+
+            if (openJoystickDevice(path))
+                count++;
+        }
+
+        closedir(dir);
+    }
+
+    // Continue with no joysticks if enumeration fails
+
+    qsort(_glfw.joysticks, count, sizeof(_GLFWjoystick), compareJoysticks);
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateJoysticksLinux(void)
+{
+    for (int jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        _GLFWjoystick* js = _glfw.joysticks + jid;
+        if (js->connected)
+            closeJoystick(js);
+    }
+
+    if (_glfw.linjs.inotify > 0)
+    {
+        if (_glfw.linjs.watch > 0)
+            inotify_rm_watch(_glfw.linjs.inotify, _glfw.linjs.watch);
+
+        close(_glfw.linjs.inotify);
+    }
+
+    if (_glfw.linjs.regexCompiled)
+        regfree(&_glfw.linjs.regex);
+}
+
+GLFWbool _glfwPollJoystickLinux(_GLFWjoystick* js, int mode)
+{
+    // Read all queued events (non-blocking)
+    for (;;)
+    {
+        struct input_event e;
+
+        errno = 0;
+        if (read(js->linjs.fd, &e, sizeof(e)) < 0)
+        {
+            // Reset the joystick slot if the device was disconnected
+            if (errno == ENODEV)
+                closeJoystick(js);
+
+            break;
+        }
+
+        if (e.type == EV_SYN)
+        {
+            if (e.code == SYN_DROPPED)
+                _glfw.linjs.dropped = GLFW_TRUE;
+            else if (e.code == SYN_REPORT)
+            {
+                _glfw.linjs.dropped = GLFW_FALSE;
+                pollAbsState(js);
+            }
+        }
+
+        if (_glfw.linjs.dropped)
+            continue;
+
+        if (e.type == EV_KEY)
+            handleKeyEvent(js, e.code, e.value);
+        else if (e.type == EV_ABS)
+            handleAbsEvent(js, e.code, e.value);
+    }
+
+    return js->connected;
+}
+
+const char* _glfwGetMappingNameLinux(void)
+{
+    return "Linux";
+}
+
+void _glfwUpdateGamepadGUIDLinux(char* guid)
+{
+}
+
+#endif // GLFW_BUILD_LINUX_JOYSTICK
+

raylib/external/glfw/src/linux_joystick.h

@@ -0,0 +1,64 @@
+//========================================================================
+// GLFW 3.4 Linux - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <linux/input.h>
+#include <linux/limits.h>
+#include <regex.h>
+
+#define GLFW_LINUX_JOYSTICK_STATE         _GLFWjoystickLinux linjs;
+#define GLFW_LINUX_LIBRARY_JOYSTICK_STATE _GLFWlibraryLinux  linjs;
+
+// Linux-specific joystick data
+//
+typedef struct _GLFWjoystickLinux
+{
+    int                     fd;
+    char                    path[PATH_MAX];
+    int                     keyMap[KEY_CNT - BTN_MISC];
+    int                     absMap[ABS_CNT];
+    struct input_absinfo    absInfo[ABS_CNT];
+    int                     hats[4][2];
+} _GLFWjoystickLinux;
+
+// Linux-specific joystick API data
+//
+typedef struct _GLFWlibraryLinux
+{
+    int                     inotify;
+    int                     watch;
+    regex_t                 regex;
+    GLFWbool                regexCompiled;
+    GLFWbool                dropped;
+} _GLFWlibraryLinux;
+
+void _glfwDetectJoystickConnectionLinux(void);
+
+GLFWbool _glfwInitJoysticksLinux(void);
+void _glfwTerminateJoysticksLinux(void);
+GLFWbool _glfwPollJoystickLinux(_GLFWjoystick* js, int mode);
+const char* _glfwGetMappingNameLinux(void);
+void _glfwUpdateGamepadGUIDLinux(char* guid);
+

raylib/external/glfw/src/mappings.h.in

@@ -0,0 +1,82 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+// As mappings.h.in, this file is used by CMake to produce the mappings.h
+// header file.  If you are adding a GLFW specific gamepad mapping, this is
+// where to put it.
+//========================================================================
+// As mappings.h, this provides all pre-defined gamepad mappings, including
+// all available in SDL_GameControllerDB.  Do not edit this file.  Any gamepad
+// mappings not specific to GLFW should be submitted to SDL_GameControllerDB.
+// This file can be re-generated from mappings.h.in and the upstream
+// gamecontrollerdb.txt with the 'update_mappings' CMake target.
+//========================================================================
+
+// All gamepad mappings not labeled GLFW are copied from the
+// SDL_GameControllerDB project under the following license:
+//
+// Simple DirectMedia Layer
+// Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
+//
+// This software is provided 'as-is', without any express or implied warranty.
+// In no event will the authors be held liable for any damages arising from the
+// use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not be
+//    misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source distribution.
+
+const char* _glfwDefaultMappings[] =
+{
+#if defined(_GLFW_WIN32)
+@GLFW_WIN32_MAPPINGS@
+"78696e70757401000000000000000000,XInput Gamepad (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757402000000000000000000,XInput Wheel (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757403000000000000000000,XInput Arcade Stick (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757404000000000000000000,XInput Flight Stick (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757405000000000000000000,XInput Dance Pad (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757406000000000000000000,XInput Guitar (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+"78696e70757408000000000000000000,XInput Drum Kit (GLFW),platform:Windows,a:b0,b:b1,x:b2,y:b3,leftshoulder:b4,rightshoulder:b5,back:b6,start:b7,leftstick:b8,rightstick:b9,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,dpup:h0.1,dpright:h0.2,dpdown:h0.4,dpleft:h0.8,",
+#endif // _GLFW_WIN32
+
+#if defined(_GLFW_COCOA)
+@GLFW_COCOA_MAPPINGS@
+#endif // _GLFW_COCOA
+
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+@GLFW_LINUX_MAPPINGS@
+#endif // GLFW_BUILD_LINUX_JOYSTICK
+};
+

raylib/external/glfw/src/monitor.c

@@ -0,0 +1,548 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <assert.h>
+#include <math.h>
+#include <float.h>
+#include <string.h>
+#include <stdlib.h>
+#include <limits.h>
+
+
+// Lexically compare video modes, used by qsort
+//
+static int compareVideoModes(const void* fp, const void* sp)
+{
+    const GLFWvidmode* fm = fp;
+    const GLFWvidmode* sm = sp;
+    const int fbpp = fm->redBits + fm->greenBits + fm->blueBits;
+    const int sbpp = sm->redBits + sm->greenBits + sm->blueBits;
+    const int farea = fm->width * fm->height;
+    const int sarea = sm->width * sm->height;
+
+    // First sort on color bits per pixel
+    if (fbpp != sbpp)
+        return fbpp - sbpp;
+
+    // Then sort on screen area
+    if (farea != sarea)
+        return farea - sarea;
+
+    // Then sort on width
+    if (fm->width != sm->width)
+        return fm->width - sm->width;
+
+    // Lastly sort on refresh rate
+    return fm->refreshRate - sm->refreshRate;
+}
+
+// Retrieves the available modes for the specified monitor
+//
+static GLFWbool refreshVideoModes(_GLFWmonitor* monitor)
+{
+    int modeCount;
+    GLFWvidmode* modes;
+
+    if (monitor->modes)
+        return GLFW_TRUE;
+
+    modes = _glfw.platform.getVideoModes(monitor, &modeCount);
+    if (!modes)
+        return GLFW_FALSE;
+
+    qsort(modes, modeCount, sizeof(GLFWvidmode), compareVideoModes);
+
+    _glfw_free(monitor->modes);
+    monitor->modes = modes;
+    monitor->modeCount = modeCount;
+
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                         GLFW event API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+// Notifies shared code of a monitor connection or disconnection
+//
+void _glfwInputMonitor(_GLFWmonitor* monitor, int action, int placement)
+{
+    assert(monitor != NULL);
+    assert(action == GLFW_CONNECTED || action == GLFW_DISCONNECTED);
+    assert(placement == _GLFW_INSERT_FIRST || placement == _GLFW_INSERT_LAST);
+
+    if (action == GLFW_CONNECTED)
+    {
+        _glfw.monitorCount++;
+        _glfw.monitors =
+            _glfw_realloc(_glfw.monitors,
+                          sizeof(_GLFWmonitor*) * _glfw.monitorCount);
+
+        if (placement == _GLFW_INSERT_FIRST)
+        {
+            memmove(_glfw.monitors + 1,
+                    _glfw.monitors,
+                    ((size_t) _glfw.monitorCount - 1) * sizeof(_GLFWmonitor*));
+            _glfw.monitors[0] = monitor;
+        }
+        else
+            _glfw.monitors[_glfw.monitorCount - 1] = monitor;
+    }
+    else if (action == GLFW_DISCONNECTED)
+    {
+        int i;
+        _GLFWwindow* window;
+
+        for (window = _glfw.windowListHead;  window;  window = window->next)
+        {
+            if (window->monitor == monitor)
+            {
+                int width, height, xoff, yoff;
+                _glfw.platform.getWindowSize(window, &width, &height);
+                _glfw.platform.setWindowMonitor(window, NULL, 0, 0, width, height, 0);
+                _glfw.platform.getWindowFrameSize(window, &xoff, &yoff, NULL, NULL);
+                _glfw.platform.setWindowPos(window, xoff, yoff);
+            }
+        }
+
+        for (i = 0;  i < _glfw.monitorCount;  i++)
+        {
+            if (_glfw.monitors[i] == monitor)
+            {
+                _glfw.monitorCount--;
+                memmove(_glfw.monitors + i,
+                        _glfw.monitors + i + 1,
+                        ((size_t) _glfw.monitorCount - i) * sizeof(_GLFWmonitor*));
+                break;
+            }
+        }
+    }
+
+    if (_glfw.callbacks.monitor)
+        _glfw.callbacks.monitor((GLFWmonitor*) monitor, action);
+
+    if (action == GLFW_DISCONNECTED)
+        _glfwFreeMonitor(monitor);
+}
+
+// Notifies shared code that a full screen window has acquired or released
+// a monitor
+//
+void _glfwInputMonitorWindow(_GLFWmonitor* monitor, _GLFWwindow* window)
+{
+    assert(monitor != NULL);
+    monitor->window = window;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Allocates and returns a monitor object with the specified name and dimensions
+//
+_GLFWmonitor* _glfwAllocMonitor(const char* name, int widthMM, int heightMM)
+{
+    _GLFWmonitor* monitor = _glfw_calloc(1, sizeof(_GLFWmonitor));
+    monitor->widthMM = widthMM;
+    monitor->heightMM = heightMM;
+
+    strncpy(monitor->name, name, sizeof(monitor->name) - 1);
+
+    return monitor;
+}
+
+// Frees a monitor object and any data associated with it
+//
+void _glfwFreeMonitor(_GLFWmonitor* monitor)
+{
+    if (monitor == NULL)
+        return;
+
+    _glfw.platform.freeMonitor(monitor);
+
+    _glfwFreeGammaArrays(&monitor->originalRamp);
+    _glfwFreeGammaArrays(&monitor->currentRamp);
+
+    _glfw_free(monitor->modes);
+    _glfw_free(monitor);
+}
+
+// Allocates red, green and blue value arrays of the specified size
+//
+void _glfwAllocGammaArrays(GLFWgammaramp* ramp, unsigned int size)
+{
+    ramp->red = _glfw_calloc(size, sizeof(unsigned short));
+    ramp->green = _glfw_calloc(size, sizeof(unsigned short));
+    ramp->blue = _glfw_calloc(size, sizeof(unsigned short));
+    ramp->size = size;
+}
+
+// Frees the red, green and blue value arrays and clears the struct
+//
+void _glfwFreeGammaArrays(GLFWgammaramp* ramp)
+{
+    _glfw_free(ramp->red);
+    _glfw_free(ramp->green);
+    _glfw_free(ramp->blue);
+
+    memset(ramp, 0, sizeof(GLFWgammaramp));
+}
+
+// Chooses the video mode most closely matching the desired one
+//
+const GLFWvidmode* _glfwChooseVideoMode(_GLFWmonitor* monitor,
+                                        const GLFWvidmode* desired)
+{
+    int i;
+    unsigned int sizeDiff, leastSizeDiff = UINT_MAX;
+    unsigned int rateDiff, leastRateDiff = UINT_MAX;
+    unsigned int colorDiff, leastColorDiff = UINT_MAX;
+    const GLFWvidmode* current;
+    const GLFWvidmode* closest = NULL;
+
+    if (!refreshVideoModes(monitor))
+        return NULL;
+
+    for (i = 0;  i < monitor->modeCount;  i++)
+    {
+        current = monitor->modes + i;
+
+        colorDiff = 0;
+
+        if (desired->redBits != GLFW_DONT_CARE)
+            colorDiff += abs(current->redBits - desired->redBits);
+        if (desired->greenBits != GLFW_DONT_CARE)
+            colorDiff += abs(current->greenBits - desired->greenBits);
+        if (desired->blueBits != GLFW_DONT_CARE)
+            colorDiff += abs(current->blueBits - desired->blueBits);
+
+        sizeDiff = abs((current->width - desired->width) *
+                       (current->width - desired->width) +
+                       (current->height - desired->height) *
+                       (current->height - desired->height));
+
+        if (desired->refreshRate != GLFW_DONT_CARE)
+            rateDiff = abs(current->refreshRate - desired->refreshRate);
+        else
+            rateDiff = UINT_MAX - current->refreshRate;
+
+        if ((colorDiff < leastColorDiff) ||
+            (colorDiff == leastColorDiff && sizeDiff < leastSizeDiff) ||
+            (colorDiff == leastColorDiff && sizeDiff == leastSizeDiff && rateDiff < leastRateDiff))
+        {
+            closest = current;
+            leastSizeDiff = sizeDiff;
+            leastRateDiff = rateDiff;
+            leastColorDiff = colorDiff;
+        }
+    }
+
+    return closest;
+}
+
+// Performs lexical comparison between two @ref GLFWvidmode structures
+//
+int _glfwCompareVideoModes(const GLFWvidmode* fm, const GLFWvidmode* sm)
+{
+    return compareVideoModes(fm, sm);
+}
+
+// Splits a color depth into red, green and blue bit depths
+//
+void _glfwSplitBPP(int bpp, int* red, int* green, int* blue)
+{
+    int delta;
+
+    // We assume that by 32 the user really meant 24
+    if (bpp == 32)
+        bpp = 24;
+
+    // Convert "bits per pixel" to red, green & blue sizes
+
+    *red = *green = *blue = bpp / 3;
+    delta = bpp - (*red * 3);
+    if (delta >= 1)
+        *green = *green + 1;
+
+    if (delta == 2)
+        *red = *red + 1;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI GLFWmonitor** glfwGetMonitors(int* count)
+{
+    assert(count != NULL);
+
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    *count = _glfw.monitorCount;
+    return (GLFWmonitor**) _glfw.monitors;
+}
+
+GLFWAPI GLFWmonitor* glfwGetPrimaryMonitor(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (!_glfw.monitorCount)
+        return NULL;
+
+    return (GLFWmonitor*) _glfw.monitors[0];
+}
+
+GLFWAPI void glfwGetMonitorPos(GLFWmonitor* handle, int* xpos, int* ypos)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    if (xpos)
+        *xpos = 0;
+    if (ypos)
+        *ypos = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    _glfw.platform.getMonitorPos(monitor, xpos, ypos);
+}
+
+GLFWAPI void glfwGetMonitorWorkarea(GLFWmonitor* handle,
+                                    int* xpos, int* ypos,
+                                    int* width, int* height)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    if (xpos)
+        *xpos = 0;
+    if (ypos)
+        *ypos = 0;
+    if (width)
+        *width = 0;
+    if (height)
+        *height = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    _glfw.platform.getMonitorWorkarea(monitor, xpos, ypos, width, height);
+}
+
+GLFWAPI void glfwGetMonitorPhysicalSize(GLFWmonitor* handle, int* widthMM, int* heightMM)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    if (widthMM)
+        *widthMM = 0;
+    if (heightMM)
+        *heightMM = 0;
+
+    _GLFW_REQUIRE_INIT();
+
+    if (widthMM)
+        *widthMM = monitor->widthMM;
+    if (heightMM)
+        *heightMM = monitor->heightMM;
+}
+
+GLFWAPI void glfwGetMonitorContentScale(GLFWmonitor* handle,
+                                        float* xscale, float* yscale)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    if (xscale)
+        *xscale = 0.f;
+    if (yscale)
+        *yscale = 0.f;
+
+    _GLFW_REQUIRE_INIT();
+    _glfw.platform.getMonitorContentScale(monitor, xscale, yscale);
+}
+
+GLFWAPI const char* glfwGetMonitorName(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return monitor->name;
+}
+
+GLFWAPI void glfwSetMonitorUserPointer(GLFWmonitor* handle, void* pointer)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    _GLFW_REQUIRE_INIT();
+    monitor->userPointer = pointer;
+}
+
+GLFWAPI void* glfwGetMonitorUserPointer(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return monitor->userPointer;
+}
+
+GLFWAPI GLFWmonitorfun glfwSetMonitorCallback(GLFWmonitorfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    _GLFW_SWAP(GLFWmonitorfun, _glfw.callbacks.monitor, cbfun);
+    return cbfun;
+}
+
+GLFWAPI const GLFWvidmode* glfwGetVideoModes(GLFWmonitor* handle, int* count)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+    assert(count != NULL);
+
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (!refreshVideoModes(monitor))
+        return NULL;
+
+    *count = monitor->modeCount;
+    return monitor->modes;
+}
+
+GLFWAPI const GLFWvidmode* glfwGetVideoMode(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (!_glfw.platform.getVideoMode(monitor, &monitor->currentMode))
+        return NULL;
+
+    return &monitor->currentMode;
+}
+
+GLFWAPI void glfwSetGamma(GLFWmonitor* handle, float gamma)
+{
+    unsigned int i;
+    unsigned short* values;
+    GLFWgammaramp ramp;
+    const GLFWgammaramp* original;
+    assert(handle != NULL);
+    assert(gamma > 0.f);
+    assert(gamma <= FLT_MAX);
+
+    _GLFW_REQUIRE_INIT();
+
+    if (gamma != gamma || gamma <= 0.f || gamma > FLT_MAX)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid gamma value %f", gamma);
+        return;
+    }
+
+    original = glfwGetGammaRamp(handle);
+    if (!original)
+        return;
+
+    values = _glfw_calloc(original->size, sizeof(unsigned short));
+
+    for (i = 0;  i < original->size;  i++)
+    {
+        float value;
+
+        // Calculate intensity
+        value = i / (float) (original->size - 1);
+        // Apply gamma curve
+        value = powf(value, 1.f / gamma) * 65535.f + 0.5f;
+        // Clamp to value range
+        value = fminf(value, 65535.f);
+
+        values[i] = (unsigned short) value;
+    }
+
+    ramp.red = values;
+    ramp.green = values;
+    ramp.blue = values;
+    ramp.size = original->size;
+
+    glfwSetGammaRamp(handle, &ramp);
+    _glfw_free(values);
+}
+
+GLFWAPI const GLFWgammaramp* glfwGetGammaRamp(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    _glfwFreeGammaArrays(&monitor->currentRamp);
+    if (!_glfw.platform.getGammaRamp(monitor, &monitor->currentRamp))
+        return NULL;
+
+    return &monitor->currentRamp;
+}
+
+GLFWAPI void glfwSetGammaRamp(GLFWmonitor* handle, const GLFWgammaramp* ramp)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    assert(monitor != NULL);
+    assert(ramp != NULL);
+    assert(ramp->size > 0);
+    assert(ramp->red != NULL);
+    assert(ramp->green != NULL);
+    assert(ramp->blue != NULL);
+
+    _GLFW_REQUIRE_INIT();
+
+    if (ramp->size <= 0)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE,
+                        "Invalid gamma ramp size %i",
+                        ramp->size);
+        return;
+    }
+
+    if (!monitor->originalRamp.size)
+    {
+        if (!_glfw.platform.getGammaRamp(monitor, &monitor->originalRamp))
+            return;
+    }
+
+    _glfw.platform.setGammaRamp(monitor, ramp);
+}
+

raylib/external/glfw/src/nsgl_context.m

@@ -0,0 +1,384 @@
+//========================================================================
+// GLFW 3.4 macOS - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2009-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_COCOA)
+
+#include <unistd.h>
+#include <math.h>
+
+static void makeContextCurrentNSGL(_GLFWwindow* window)
+{
+    @autoreleasepool {
+
+    if (window)
+        [window->context.nsgl.object makeCurrentContext];
+    else
+        [NSOpenGLContext clearCurrentContext];
+
+    _glfwPlatformSetTls(&_glfw.contextSlot, window);
+
+    } // autoreleasepool
+}
+
+static void swapBuffersNSGL(_GLFWwindow* window)
+{
+    @autoreleasepool {
+
+    // HACK: Simulate vsync with usleep as NSGL swap interval does not apply to
+    //       windows with a non-visible occlusion state
+    if (window->ns.occluded)
+    {
+        int interval = 0;
+        [window->context.nsgl.object getValues:&interval
+                                  forParameter:NSOpenGLContextParameterSwapInterval];
+
+        if (interval > 0)
+        {
+            const double framerate = 60.0;
+            const uint64_t frequency = _glfwPlatformGetTimerFrequency();
+            const uint64_t value = _glfwPlatformGetTimerValue();
+
+            const double elapsed = value / (double) frequency;
+            const double period = 1.0 / framerate;
+            const double delay = period - fmod(elapsed, period);
+
+            usleep(floorl(delay * 1e6));
+        }
+    }
+
+    [window->context.nsgl.object flushBuffer];
+
+    } // autoreleasepool
+}
+
+static void swapIntervalNSGL(int interval)
+{
+    @autoreleasepool {
+
+    _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    assert(window != NULL);
+
+    [window->context.nsgl.object setValues:&interval
+                              forParameter:NSOpenGLContextParameterSwapInterval];
+
+    } // autoreleasepool
+}
+
+static int extensionSupportedNSGL(const char* extension)
+{
+    // There are no NSGL extensions
+    return GLFW_FALSE;
+}
+
+static GLFWglproc getProcAddressNSGL(const char* procname)
+{
+    CFStringRef symbolName = CFStringCreateWithCString(kCFAllocatorDefault,
+                                                       procname,
+                                                       kCFStringEncodingASCII);
+
+    GLFWglproc symbol = CFBundleGetFunctionPointerForName(_glfw.nsgl.framework,
+                                                          symbolName);
+
+    CFRelease(symbolName);
+
+    return symbol;
+}
+
+static void destroyContextNSGL(_GLFWwindow* window)
+{
+    @autoreleasepool {
+
+    [window->context.nsgl.pixelFormat release];
+    window->context.nsgl.pixelFormat = nil;
+
+    [window->context.nsgl.object release];
+    window->context.nsgl.object = nil;
+
+    } // autoreleasepool
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Initialize OpenGL support
+//
+GLFWbool _glfwInitNSGL(void)
+{
+    if (_glfw.nsgl.framework)
+        return GLFW_TRUE;
+
+    _glfw.nsgl.framework =
+        CFBundleGetBundleWithIdentifier(CFSTR("com.apple.opengl"));
+    if (_glfw.nsgl.framework == NULL)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "NSGL: Failed to locate OpenGL framework");
+        return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+// Terminate OpenGL support
+//
+void _glfwTerminateNSGL(void)
+{
+}
+
+// Create the OpenGL context
+//
+GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
+                                const _GLFWctxconfig* ctxconfig,
+                                const _GLFWfbconfig* fbconfig)
+{
+    if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "NSGL: OpenGL ES is not available via NSGL");
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->major > 2)
+    {
+        if (ctxconfig->major == 3 && ctxconfig->minor < 2)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "NSGL: The targeted version of macOS does not support OpenGL 3.0 or 3.1 but may support 3.2 and above");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (ctxconfig->major >= 3 && ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+    {
+        _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                        "NSGL: The compatibility profile is not available on macOS");
+        return GLFW_FALSE;
+    }
+
+    // Context robustness modes (GL_KHR_robustness) are not yet supported by
+    // macOS but are not a hard constraint, so ignore and continue
+
+    // Context release behaviors (GL_KHR_context_flush_control) are not yet
+    // supported by macOS but are not a hard constraint, so ignore and continue
+
+    // Debug contexts (GL_KHR_debug) are not yet supported by macOS but are not
+    // a hard constraint, so ignore and continue
+
+    // No-error contexts (GL_KHR_no_error) are not yet supported by macOS but
+    // are not a hard constraint, so ignore and continue
+
+#define ADD_ATTRIB(a) \
+{ \
+    assert((size_t) index < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[index++] = a; \
+}
+#define SET_ATTRIB(a, v) { ADD_ATTRIB(a); ADD_ATTRIB(v); }
+
+    NSOpenGLPixelFormatAttribute attribs[40];
+    int index = 0;
+
+    ADD_ATTRIB(NSOpenGLPFAAccelerated);
+    ADD_ATTRIB(NSOpenGLPFAClosestPolicy);
+
+    if (ctxconfig->nsgl.offline)
+    {
+        ADD_ATTRIB(NSOpenGLPFAAllowOfflineRenderers);
+        // NOTE: This replaces the NSSupportsAutomaticGraphicsSwitching key in
+        //       Info.plist for unbundled applications
+        // HACK: This assumes that NSOpenGLPixelFormat will remain
+        //       a straightforward wrapper of its CGL counterpart
+        ADD_ATTRIB(kCGLPFASupportsAutomaticGraphicsSwitching);
+    }
+
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 101000
+    if (ctxconfig->major >= 4)
+    {
+        SET_ATTRIB(NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion4_1Core);
+    }
+    else
+#endif /*MAC_OS_X_VERSION_MAX_ALLOWED*/
+    if (ctxconfig->major >= 3)
+    {
+        SET_ATTRIB(NSOpenGLPFAOpenGLProfile, NSOpenGLProfileVersion3_2Core);
+    }
+
+    if (ctxconfig->major <= 2)
+    {
+        if (fbconfig->auxBuffers != GLFW_DONT_CARE)
+            SET_ATTRIB(NSOpenGLPFAAuxBuffers, fbconfig->auxBuffers);
+
+        if (fbconfig->accumRedBits != GLFW_DONT_CARE &&
+            fbconfig->accumGreenBits != GLFW_DONT_CARE &&
+            fbconfig->accumBlueBits != GLFW_DONT_CARE &&
+            fbconfig->accumAlphaBits != GLFW_DONT_CARE)
+        {
+            const int accumBits = fbconfig->accumRedBits +
+                                  fbconfig->accumGreenBits +
+                                  fbconfig->accumBlueBits +
+                                  fbconfig->accumAlphaBits;
+
+            SET_ATTRIB(NSOpenGLPFAAccumSize, accumBits);
+        }
+    }
+
+    if (fbconfig->redBits != GLFW_DONT_CARE &&
+        fbconfig->greenBits != GLFW_DONT_CARE &&
+        fbconfig->blueBits != GLFW_DONT_CARE)
+    {
+        int colorBits = fbconfig->redBits +
+                        fbconfig->greenBits +
+                        fbconfig->blueBits;
+
+        // macOS needs non-zero color size, so set reasonable values
+        if (colorBits == 0)
+            colorBits = 24;
+        else if (colorBits < 15)
+            colorBits = 15;
+
+        SET_ATTRIB(NSOpenGLPFAColorSize, colorBits);
+    }
+
+    if (fbconfig->alphaBits != GLFW_DONT_CARE)
+        SET_ATTRIB(NSOpenGLPFAAlphaSize, fbconfig->alphaBits);
+
+    if (fbconfig->depthBits != GLFW_DONT_CARE)
+        SET_ATTRIB(NSOpenGLPFADepthSize, fbconfig->depthBits);
+
+    if (fbconfig->stencilBits != GLFW_DONT_CARE)
+        SET_ATTRIB(NSOpenGLPFAStencilSize, fbconfig->stencilBits);
+
+    if (fbconfig->stereo)
+    {
+#if MAC_OS_X_VERSION_MAX_ALLOWED >= 101200
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "NSGL: Stereo rendering is deprecated");
+        return GLFW_FALSE;
+#else
+        ADD_ATTRIB(NSOpenGLPFAStereo);
+#endif
+    }
+
+    if (fbconfig->doublebuffer)
+        ADD_ATTRIB(NSOpenGLPFADoubleBuffer);
+
+    if (fbconfig->samples != GLFW_DONT_CARE)
+    {
+        if (fbconfig->samples == 0)
+        {
+            SET_ATTRIB(NSOpenGLPFASampleBuffers, 0);
+        }
+        else
+        {
+            SET_ATTRIB(NSOpenGLPFASampleBuffers, 1);
+            SET_ATTRIB(NSOpenGLPFASamples, fbconfig->samples);
+        }
+    }
+
+    // NOTE: All NSOpenGLPixelFormats on the relevant cards support sRGB
+    //       framebuffer, so there's no need (and no way) to request it
+
+    ADD_ATTRIB(0);
+
+#undef ADD_ATTRIB
+#undef SET_ATTRIB
+
+    window->context.nsgl.pixelFormat =
+        [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
+    if (window->context.nsgl.pixelFormat == nil)
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "NSGL: Failed to find a suitable pixel format");
+        return GLFW_FALSE;
+    }
+
+    NSOpenGLContext* share = nil;
+
+    if (ctxconfig->share)
+        share = ctxconfig->share->context.nsgl.object;
+
+    window->context.nsgl.object =
+        [[NSOpenGLContext alloc] initWithFormat:window->context.nsgl.pixelFormat
+                                   shareContext:share];
+    if (window->context.nsgl.object == nil)
+    {
+        _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                        "NSGL: Failed to create OpenGL context");
+        return GLFW_FALSE;
+    }
+
+    if (fbconfig->transparent)
+    {
+        GLint opaque = 0;
+        [window->context.nsgl.object setValues:&opaque
+                                  forParameter:NSOpenGLContextParameterSurfaceOpacity];
+    }
+
+    [window->ns.view setWantsBestResolutionOpenGLSurface:window->ns.scaleFramebuffer];
+
+    [window->context.nsgl.object setView:window->ns.view];
+
+    window->context.makeCurrent = makeContextCurrentNSGL;
+    window->context.swapBuffers = swapBuffersNSGL;
+    window->context.swapInterval = swapIntervalNSGL;
+    window->context.extensionSupported = extensionSupportedNSGL;
+    window->context.getProcAddress = getProcAddressNSGL;
+    window->context.destroy = destroyContextNSGL;
+
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI id glfwGetNSGLContext(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(nil);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_COCOA)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                        "NSGL: Platform not initialized");
+        return nil;
+    }
+
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return nil;
+    }
+
+    return window->context.nsgl.object;
+}
+
+#endif // _GLFW_COCOA
+

raylib/external/glfw/src/null_init.c

@@ -0,0 +1,264 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016 Google Inc.
+// Copyright (c) 2016-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwConnectNull(int platformID, _GLFWplatform* platform)
+{
+    const _GLFWplatform null =
+    {
+        .platformID = GLFW_PLATFORM_NULL,
+        .init = _glfwInitNull,
+        .terminate = _glfwTerminateNull,
+        .getCursorPos = _glfwGetCursorPosNull,
+        .setCursorPos = _glfwSetCursorPosNull,
+        .setCursorMode = _glfwSetCursorModeNull,
+        .setRawMouseMotion = _glfwSetRawMouseMotionNull,
+        .rawMouseMotionSupported = _glfwRawMouseMotionSupportedNull,
+        .createCursor = _glfwCreateCursorNull,
+        .createStandardCursor = _glfwCreateStandardCursorNull,
+        .destroyCursor = _glfwDestroyCursorNull,
+        .setCursor = _glfwSetCursorNull,
+        .getScancodeName = _glfwGetScancodeNameNull,
+        .getKeyScancode = _glfwGetKeyScancodeNull,
+        .setClipboardString = _glfwSetClipboardStringNull,
+        .getClipboardString = _glfwGetClipboardStringNull,
+        .initJoysticks = _glfwInitJoysticksNull,
+        .terminateJoysticks = _glfwTerminateJoysticksNull,
+        .pollJoystick = _glfwPollJoystickNull,
+        .getMappingName = _glfwGetMappingNameNull,
+        .updateGamepadGUID = _glfwUpdateGamepadGUIDNull,
+        .freeMonitor = _glfwFreeMonitorNull,
+        .getMonitorPos = _glfwGetMonitorPosNull,
+        .getMonitorContentScale = _glfwGetMonitorContentScaleNull,
+        .getMonitorWorkarea = _glfwGetMonitorWorkareaNull,
+        .getVideoModes = _glfwGetVideoModesNull,
+        .getVideoMode = _glfwGetVideoModeNull,
+        .getGammaRamp = _glfwGetGammaRampNull,
+        .setGammaRamp = _glfwSetGammaRampNull,
+        .createWindow = _glfwCreateWindowNull,
+        .destroyWindow = _glfwDestroyWindowNull,
+        .setWindowTitle = _glfwSetWindowTitleNull,
+        .setWindowIcon = _glfwSetWindowIconNull,
+        .getWindowPos = _glfwGetWindowPosNull,
+        .setWindowPos = _glfwSetWindowPosNull,
+        .getWindowSize = _glfwGetWindowSizeNull,
+        .setWindowSize = _glfwSetWindowSizeNull,
+        .setWindowSizeLimits = _glfwSetWindowSizeLimitsNull,
+        .setWindowAspectRatio = _glfwSetWindowAspectRatioNull,
+        .getFramebufferSize = _glfwGetFramebufferSizeNull,
+        .getWindowFrameSize = _glfwGetWindowFrameSizeNull,
+        .getWindowContentScale = _glfwGetWindowContentScaleNull,
+        .iconifyWindow = _glfwIconifyWindowNull,
+        .restoreWindow = _glfwRestoreWindowNull,
+        .maximizeWindow = _glfwMaximizeWindowNull,
+        .showWindow = _glfwShowWindowNull,
+        .hideWindow = _glfwHideWindowNull,
+        .requestWindowAttention = _glfwRequestWindowAttentionNull,
+        .focusWindow = _glfwFocusWindowNull,
+        .setWindowMonitor = _glfwSetWindowMonitorNull,
+        .windowFocused = _glfwWindowFocusedNull,
+        .windowIconified = _glfwWindowIconifiedNull,
+        .windowVisible = _glfwWindowVisibleNull,
+        .windowMaximized = _glfwWindowMaximizedNull,
+        .windowHovered = _glfwWindowHoveredNull,
+        .framebufferTransparent = _glfwFramebufferTransparentNull,
+        .getWindowOpacity = _glfwGetWindowOpacityNull,
+        .setWindowResizable = _glfwSetWindowResizableNull,
+        .setWindowDecorated = _glfwSetWindowDecoratedNull,
+        .setWindowFloating = _glfwSetWindowFloatingNull,
+        .setWindowOpacity = _glfwSetWindowOpacityNull,
+        .setWindowMousePassthrough = _glfwSetWindowMousePassthroughNull,
+        .pollEvents = _glfwPollEventsNull,
+        .waitEvents = _glfwWaitEventsNull,
+        .waitEventsTimeout = _glfwWaitEventsTimeoutNull,
+        .postEmptyEvent = _glfwPostEmptyEventNull,
+        .getEGLPlatform = _glfwGetEGLPlatformNull,
+        .getEGLNativeDisplay = _glfwGetEGLNativeDisplayNull,
+        .getEGLNativeWindow = _glfwGetEGLNativeWindowNull,
+        .getRequiredInstanceExtensions = _glfwGetRequiredInstanceExtensionsNull,
+        .getPhysicalDevicePresentationSupport = _glfwGetPhysicalDevicePresentationSupportNull,
+        .createWindowSurface = _glfwCreateWindowSurfaceNull
+    };
+
+    *platform = null;
+    return GLFW_TRUE;
+}
+
+int _glfwInitNull(void)
+{
+    int scancode;
+
+    memset(_glfw.null.keycodes, -1, sizeof(_glfw.null.keycodes));
+    memset(_glfw.null.scancodes, -1, sizeof(_glfw.null.scancodes));
+
+    _glfw.null.keycodes[GLFW_NULL_SC_SPACE]         = GLFW_KEY_SPACE;
+    _glfw.null.keycodes[GLFW_NULL_SC_APOSTROPHE]    = GLFW_KEY_APOSTROPHE;
+    _glfw.null.keycodes[GLFW_NULL_SC_COMMA]         = GLFW_KEY_COMMA;
+    _glfw.null.keycodes[GLFW_NULL_SC_MINUS]         = GLFW_KEY_MINUS;
+    _glfw.null.keycodes[GLFW_NULL_SC_PERIOD]        = GLFW_KEY_PERIOD;
+    _glfw.null.keycodes[GLFW_NULL_SC_SLASH]         = GLFW_KEY_SLASH;
+    _glfw.null.keycodes[GLFW_NULL_SC_0]             = GLFW_KEY_0;
+    _glfw.null.keycodes[GLFW_NULL_SC_1]             = GLFW_KEY_1;
+    _glfw.null.keycodes[GLFW_NULL_SC_2]             = GLFW_KEY_2;
+    _glfw.null.keycodes[GLFW_NULL_SC_3]             = GLFW_KEY_3;
+    _glfw.null.keycodes[GLFW_NULL_SC_4]             = GLFW_KEY_4;
+    _glfw.null.keycodes[GLFW_NULL_SC_5]             = GLFW_KEY_5;
+    _glfw.null.keycodes[GLFW_NULL_SC_6]             = GLFW_KEY_6;
+    _glfw.null.keycodes[GLFW_NULL_SC_7]             = GLFW_KEY_7;
+    _glfw.null.keycodes[GLFW_NULL_SC_8]             = GLFW_KEY_8;
+    _glfw.null.keycodes[GLFW_NULL_SC_9]             = GLFW_KEY_9;
+    _glfw.null.keycodes[GLFW_NULL_SC_SEMICOLON]     = GLFW_KEY_SEMICOLON;
+    _glfw.null.keycodes[GLFW_NULL_SC_EQUAL]         = GLFW_KEY_EQUAL;
+    _glfw.null.keycodes[GLFW_NULL_SC_A]             = GLFW_KEY_A;
+    _glfw.null.keycodes[GLFW_NULL_SC_B]             = GLFW_KEY_B;
+    _glfw.null.keycodes[GLFW_NULL_SC_C]             = GLFW_KEY_C;
+    _glfw.null.keycodes[GLFW_NULL_SC_D]             = GLFW_KEY_D;
+    _glfw.null.keycodes[GLFW_NULL_SC_E]             = GLFW_KEY_E;
+    _glfw.null.keycodes[GLFW_NULL_SC_F]             = GLFW_KEY_F;
+    _glfw.null.keycodes[GLFW_NULL_SC_G]             = GLFW_KEY_G;
+    _glfw.null.keycodes[GLFW_NULL_SC_H]             = GLFW_KEY_H;
+    _glfw.null.keycodes[GLFW_NULL_SC_I]             = GLFW_KEY_I;
+    _glfw.null.keycodes[GLFW_NULL_SC_J]             = GLFW_KEY_J;
+    _glfw.null.keycodes[GLFW_NULL_SC_K]             = GLFW_KEY_K;
+    _glfw.null.keycodes[GLFW_NULL_SC_L]             = GLFW_KEY_L;
+    _glfw.null.keycodes[GLFW_NULL_SC_M]             = GLFW_KEY_M;
+    _glfw.null.keycodes[GLFW_NULL_SC_N]             = GLFW_KEY_N;
+    _glfw.null.keycodes[GLFW_NULL_SC_O]             = GLFW_KEY_O;
+    _glfw.null.keycodes[GLFW_NULL_SC_P]             = GLFW_KEY_P;
+    _glfw.null.keycodes[GLFW_NULL_SC_Q]             = GLFW_KEY_Q;
+    _glfw.null.keycodes[GLFW_NULL_SC_R]             = GLFW_KEY_R;
+    _glfw.null.keycodes[GLFW_NULL_SC_S]             = GLFW_KEY_S;
+    _glfw.null.keycodes[GLFW_NULL_SC_T]             = GLFW_KEY_T;
+    _glfw.null.keycodes[GLFW_NULL_SC_U]             = GLFW_KEY_U;
+    _glfw.null.keycodes[GLFW_NULL_SC_V]             = GLFW_KEY_V;
+    _glfw.null.keycodes[GLFW_NULL_SC_W]             = GLFW_KEY_W;
+    _glfw.null.keycodes[GLFW_NULL_SC_X]             = GLFW_KEY_X;
+    _glfw.null.keycodes[GLFW_NULL_SC_Y]             = GLFW_KEY_Y;
+    _glfw.null.keycodes[GLFW_NULL_SC_Z]             = GLFW_KEY_Z;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT_BRACKET]  = GLFW_KEY_LEFT_BRACKET;
+    _glfw.null.keycodes[GLFW_NULL_SC_BACKSLASH]     = GLFW_KEY_BACKSLASH;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT_BRACKET] = GLFW_KEY_RIGHT_BRACKET;
+    _glfw.null.keycodes[GLFW_NULL_SC_GRAVE_ACCENT]  = GLFW_KEY_GRAVE_ACCENT;
+    _glfw.null.keycodes[GLFW_NULL_SC_WORLD_1]       = GLFW_KEY_WORLD_1;
+    _glfw.null.keycodes[GLFW_NULL_SC_WORLD_2]       = GLFW_KEY_WORLD_2;
+    _glfw.null.keycodes[GLFW_NULL_SC_ESCAPE]        = GLFW_KEY_ESCAPE;
+    _glfw.null.keycodes[GLFW_NULL_SC_ENTER]         = GLFW_KEY_ENTER;
+    _glfw.null.keycodes[GLFW_NULL_SC_TAB]           = GLFW_KEY_TAB;
+    _glfw.null.keycodes[GLFW_NULL_SC_BACKSPACE]     = GLFW_KEY_BACKSPACE;
+    _glfw.null.keycodes[GLFW_NULL_SC_INSERT]        = GLFW_KEY_INSERT;
+    _glfw.null.keycodes[GLFW_NULL_SC_DELETE]        = GLFW_KEY_DELETE;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT]         = GLFW_KEY_RIGHT;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT]          = GLFW_KEY_LEFT;
+    _glfw.null.keycodes[GLFW_NULL_SC_DOWN]          = GLFW_KEY_DOWN;
+    _glfw.null.keycodes[GLFW_NULL_SC_UP]            = GLFW_KEY_UP;
+    _glfw.null.keycodes[GLFW_NULL_SC_PAGE_UP]       = GLFW_KEY_PAGE_UP;
+    _glfw.null.keycodes[GLFW_NULL_SC_PAGE_DOWN]     = GLFW_KEY_PAGE_DOWN;
+    _glfw.null.keycodes[GLFW_NULL_SC_HOME]          = GLFW_KEY_HOME;
+    _glfw.null.keycodes[GLFW_NULL_SC_END]           = GLFW_KEY_END;
+    _glfw.null.keycodes[GLFW_NULL_SC_CAPS_LOCK]     = GLFW_KEY_CAPS_LOCK;
+    _glfw.null.keycodes[GLFW_NULL_SC_SCROLL_LOCK]   = GLFW_KEY_SCROLL_LOCK;
+    _glfw.null.keycodes[GLFW_NULL_SC_NUM_LOCK]      = GLFW_KEY_NUM_LOCK;
+    _glfw.null.keycodes[GLFW_NULL_SC_PRINT_SCREEN]  = GLFW_KEY_PRINT_SCREEN;
+    _glfw.null.keycodes[GLFW_NULL_SC_PAUSE]         = GLFW_KEY_PAUSE;
+    _glfw.null.keycodes[GLFW_NULL_SC_F1]            = GLFW_KEY_F1;
+    _glfw.null.keycodes[GLFW_NULL_SC_F2]            = GLFW_KEY_F2;
+    _glfw.null.keycodes[GLFW_NULL_SC_F3]            = GLFW_KEY_F3;
+    _glfw.null.keycodes[GLFW_NULL_SC_F4]            = GLFW_KEY_F4;
+    _glfw.null.keycodes[GLFW_NULL_SC_F5]            = GLFW_KEY_F5;
+    _glfw.null.keycodes[GLFW_NULL_SC_F6]            = GLFW_KEY_F6;
+    _glfw.null.keycodes[GLFW_NULL_SC_F7]            = GLFW_KEY_F7;
+    _glfw.null.keycodes[GLFW_NULL_SC_F8]            = GLFW_KEY_F8;
+    _glfw.null.keycodes[GLFW_NULL_SC_F9]            = GLFW_KEY_F9;
+    _glfw.null.keycodes[GLFW_NULL_SC_F10]           = GLFW_KEY_F10;
+    _glfw.null.keycodes[GLFW_NULL_SC_F11]           = GLFW_KEY_F11;
+    _glfw.null.keycodes[GLFW_NULL_SC_F12]           = GLFW_KEY_F12;
+    _glfw.null.keycodes[GLFW_NULL_SC_F13]           = GLFW_KEY_F13;
+    _glfw.null.keycodes[GLFW_NULL_SC_F14]           = GLFW_KEY_F14;
+    _glfw.null.keycodes[GLFW_NULL_SC_F15]           = GLFW_KEY_F15;
+    _glfw.null.keycodes[GLFW_NULL_SC_F16]           = GLFW_KEY_F16;
+    _glfw.null.keycodes[GLFW_NULL_SC_F17]           = GLFW_KEY_F17;
+    _glfw.null.keycodes[GLFW_NULL_SC_F18]           = GLFW_KEY_F18;
+    _glfw.null.keycodes[GLFW_NULL_SC_F19]           = GLFW_KEY_F19;
+    _glfw.null.keycodes[GLFW_NULL_SC_F20]           = GLFW_KEY_F20;
+    _glfw.null.keycodes[GLFW_NULL_SC_F21]           = GLFW_KEY_F21;
+    _glfw.null.keycodes[GLFW_NULL_SC_F22]           = GLFW_KEY_F22;
+    _glfw.null.keycodes[GLFW_NULL_SC_F23]           = GLFW_KEY_F23;
+    _glfw.null.keycodes[GLFW_NULL_SC_F24]           = GLFW_KEY_F24;
+    _glfw.null.keycodes[GLFW_NULL_SC_F25]           = GLFW_KEY_F25;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_0]          = GLFW_KEY_KP_0;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_1]          = GLFW_KEY_KP_1;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_2]          = GLFW_KEY_KP_2;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_3]          = GLFW_KEY_KP_3;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_4]          = GLFW_KEY_KP_4;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_5]          = GLFW_KEY_KP_5;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_6]          = GLFW_KEY_KP_6;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_7]          = GLFW_KEY_KP_7;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_8]          = GLFW_KEY_KP_8;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_9]          = GLFW_KEY_KP_9;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_DECIMAL]    = GLFW_KEY_KP_DECIMAL;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_DIVIDE]     = GLFW_KEY_KP_DIVIDE;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_MULTIPLY]   = GLFW_KEY_KP_MULTIPLY;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_SUBTRACT]   = GLFW_KEY_KP_SUBTRACT;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_ADD]        = GLFW_KEY_KP_ADD;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_ENTER]      = GLFW_KEY_KP_ENTER;
+    _glfw.null.keycodes[GLFW_NULL_SC_KP_EQUAL]      = GLFW_KEY_KP_EQUAL;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT_SHIFT]    = GLFW_KEY_LEFT_SHIFT;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT_CONTROL]  = GLFW_KEY_LEFT_CONTROL;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT_ALT]      = GLFW_KEY_LEFT_ALT;
+    _glfw.null.keycodes[GLFW_NULL_SC_LEFT_SUPER]    = GLFW_KEY_LEFT_SUPER;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT_SHIFT]   = GLFW_KEY_RIGHT_SHIFT;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT_CONTROL] = GLFW_KEY_RIGHT_CONTROL;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT_ALT]     = GLFW_KEY_RIGHT_ALT;
+    _glfw.null.keycodes[GLFW_NULL_SC_RIGHT_SUPER]   = GLFW_KEY_RIGHT_SUPER;
+    _glfw.null.keycodes[GLFW_NULL_SC_MENU]          = GLFW_KEY_MENU;
+
+    for (scancode = GLFW_NULL_SC_FIRST;  scancode < GLFW_NULL_SC_LAST;  scancode++)
+    {
+        if (_glfw.null.keycodes[scancode] > 0)
+            _glfw.null.scancodes[_glfw.null.keycodes[scancode]] = scancode;
+    }
+
+    _glfwPollMonitorsNull();
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateNull(void)
+{
+    free(_glfw.null.clipboardString);
+    _glfwTerminateOSMesa();
+    _glfwTerminateEGL();
+}
+

raylib/external/glfw/src/null_joystick.c

@@ -0,0 +1,56 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitJoysticksNull(void)
+{
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateJoysticksNull(void)
+{
+}
+
+GLFWbool _glfwPollJoystickNull(_GLFWjoystick* js, int mode)
+{
+    return GLFW_FALSE;
+}
+
+const char* _glfwGetMappingNameNull(void)
+{
+    return "";
+}
+
+void _glfwUpdateGamepadGUIDNull(char* guid)
+{
+}
+

raylib/external/glfw/src/null_joystick.h

@@ -0,0 +1,32 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+GLFWbool _glfwInitJoysticksNull(void);
+void _glfwTerminateJoysticksNull(void);
+GLFWbool _glfwPollJoystickNull(_GLFWjoystick* js, int mode);
+const char* _glfwGetMappingNameNull(void);
+void _glfwUpdateGamepadGUIDNull(char* guid);
+

raylib/external/glfw/src/null_monitor.c

@@ -0,0 +1,160 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016 Google Inc.
+// Copyright (c) 2016-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+// The the sole (fake) video mode of our (sole) fake monitor
+//
+static GLFWvidmode getVideoMode(void)
+{
+    GLFWvidmode mode;
+    mode.width = 1920;
+    mode.height = 1080;
+    mode.redBits = 8;
+    mode.greenBits = 8;
+    mode.blueBits = 8;
+    mode.refreshRate = 60;
+    return mode;
+}
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwPollMonitorsNull(void)
+{
+    const float dpi = 141.f;
+    const GLFWvidmode mode = getVideoMode();
+    _GLFWmonitor* monitor = _glfwAllocMonitor("Null SuperNoop 0",
+                                              (int) (mode.width * 25.4f / dpi),
+                                              (int) (mode.height * 25.4f / dpi));
+    _glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_FIRST);
+}
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwFreeMonitorNull(_GLFWmonitor* monitor)
+{
+    _glfwFreeGammaArrays(&monitor->null.ramp);
+}
+
+void _glfwGetMonitorPosNull(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    if (xpos)
+        *xpos = 0;
+    if (ypos)
+        *ypos = 0;
+}
+
+void _glfwGetMonitorContentScaleNull(_GLFWmonitor* monitor,
+                                     float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = 1.f;
+    if (yscale)
+        *yscale = 1.f;
+}
+
+void _glfwGetMonitorWorkareaNull(_GLFWmonitor* monitor,
+                                 int* xpos, int* ypos,
+                                 int* width, int* height)
+{
+    const GLFWvidmode mode = getVideoMode();
+
+    if (xpos)
+        *xpos = 0;
+    if (ypos)
+        *ypos = 10;
+    if (width)
+        *width = mode.width;
+    if (height)
+        *height = mode.height - 10;
+}
+
+GLFWvidmode* _glfwGetVideoModesNull(_GLFWmonitor* monitor, int* found)
+{
+    GLFWvidmode* mode = _glfw_calloc(1, sizeof(GLFWvidmode));
+    *mode = getVideoMode();
+    *found = 1;
+    return mode;
+}
+
+GLFWbool _glfwGetVideoModeNull(_GLFWmonitor* monitor, GLFWvidmode* mode)
+{
+    *mode = getVideoMode();
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwGetGammaRampNull(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    if (!monitor->null.ramp.size)
+    {
+        unsigned int i;
+
+        _glfwAllocGammaArrays(&monitor->null.ramp, 256);
+
+        for (i = 0;  i < monitor->null.ramp.size;  i++)
+        {
+            const float gamma = 2.2f;
+            float value;
+            value = i / (float) (monitor->null.ramp.size - 1);
+            value = powf(value, 1.f / gamma) * 65535.f + 0.5f;
+            value = fminf(value, 65535.f);
+
+            monitor->null.ramp.red[i]   = (unsigned short) value;
+            monitor->null.ramp.green[i] = (unsigned short) value;
+            monitor->null.ramp.blue[i]  = (unsigned short) value;
+        }
+    }
+
+    _glfwAllocGammaArrays(ramp, monitor->null.ramp.size);
+    memcpy(ramp->red,   monitor->null.ramp.red,   sizeof(short) * ramp->size);
+    memcpy(ramp->green, monitor->null.ramp.green, sizeof(short) * ramp->size);
+    memcpy(ramp->blue,  monitor->null.ramp.blue,  sizeof(short) * ramp->size);
+    return GLFW_TRUE;
+}
+
+void _glfwSetGammaRampNull(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    if (monitor->null.ramp.size != ramp->size)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Null: Gamma ramp size must match current ramp size");
+        return;
+    }
+
+    memcpy(monitor->null.ramp.red,   ramp->red,   sizeof(short) * ramp->size);
+    memcpy(monitor->null.ramp.green, ramp->green, sizeof(short) * ramp->size);
+    memcpy(monitor->null.ramp.blue,  ramp->blue,  sizeof(short) * ramp->size);
+}
+

raylib/external/glfw/src/null_platform.h

@@ -0,0 +1,271 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016 Google Inc.
+// Copyright (c) 2016-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define GLFW_NULL_WINDOW_STATE          _GLFWwindowNull null;
+#define GLFW_NULL_LIBRARY_WINDOW_STATE  _GLFWlibraryNull null;
+#define GLFW_NULL_MONITOR_STATE         _GLFWmonitorNull null;
+
+#define GLFW_NULL_CONTEXT_STATE
+#define GLFW_NULL_CURSOR_STATE
+#define GLFW_NULL_LIBRARY_CONTEXT_STATE
+
+#define GLFW_NULL_SC_FIRST          GLFW_NULL_SC_SPACE
+#define GLFW_NULL_SC_SPACE          1
+#define GLFW_NULL_SC_APOSTROPHE     2
+#define GLFW_NULL_SC_COMMA          3
+#define GLFW_NULL_SC_MINUS          4
+#define GLFW_NULL_SC_PERIOD         5
+#define GLFW_NULL_SC_SLASH          6
+#define GLFW_NULL_SC_0              7
+#define GLFW_NULL_SC_1              8
+#define GLFW_NULL_SC_2              9
+#define GLFW_NULL_SC_3              10
+#define GLFW_NULL_SC_4              11
+#define GLFW_NULL_SC_5              12
+#define GLFW_NULL_SC_6              13
+#define GLFW_NULL_SC_7              14
+#define GLFW_NULL_SC_8              15
+#define GLFW_NULL_SC_9              16
+#define GLFW_NULL_SC_SEMICOLON      17
+#define GLFW_NULL_SC_EQUAL          18
+#define GLFW_NULL_SC_LEFT_BRACKET   19
+#define GLFW_NULL_SC_BACKSLASH      20
+#define GLFW_NULL_SC_RIGHT_BRACKET  21
+#define GLFW_NULL_SC_GRAVE_ACCENT   22
+#define GLFW_NULL_SC_WORLD_1        23
+#define GLFW_NULL_SC_WORLD_2        24
+#define GLFW_NULL_SC_ESCAPE         25
+#define GLFW_NULL_SC_ENTER          26
+#define GLFW_NULL_SC_TAB            27
+#define GLFW_NULL_SC_BACKSPACE      28
+#define GLFW_NULL_SC_INSERT         29
+#define GLFW_NULL_SC_DELETE         30
+#define GLFW_NULL_SC_RIGHT          31
+#define GLFW_NULL_SC_LEFT           32
+#define GLFW_NULL_SC_DOWN           33
+#define GLFW_NULL_SC_UP             34
+#define GLFW_NULL_SC_PAGE_UP        35
+#define GLFW_NULL_SC_PAGE_DOWN      36
+#define GLFW_NULL_SC_HOME           37
+#define GLFW_NULL_SC_END            38
+#define GLFW_NULL_SC_CAPS_LOCK      39
+#define GLFW_NULL_SC_SCROLL_LOCK    40
+#define GLFW_NULL_SC_NUM_LOCK       41
+#define GLFW_NULL_SC_PRINT_SCREEN   42
+#define GLFW_NULL_SC_PAUSE          43
+#define GLFW_NULL_SC_A              44
+#define GLFW_NULL_SC_B              45
+#define GLFW_NULL_SC_C              46
+#define GLFW_NULL_SC_D              47
+#define GLFW_NULL_SC_E              48
+#define GLFW_NULL_SC_F              49
+#define GLFW_NULL_SC_G              50
+#define GLFW_NULL_SC_H              51
+#define GLFW_NULL_SC_I              52
+#define GLFW_NULL_SC_J              53
+#define GLFW_NULL_SC_K              54
+#define GLFW_NULL_SC_L              55
+#define GLFW_NULL_SC_M              56
+#define GLFW_NULL_SC_N              57
+#define GLFW_NULL_SC_O              58
+#define GLFW_NULL_SC_P              59
+#define GLFW_NULL_SC_Q              60
+#define GLFW_NULL_SC_R              61
+#define GLFW_NULL_SC_S              62
+#define GLFW_NULL_SC_T              63
+#define GLFW_NULL_SC_U              64
+#define GLFW_NULL_SC_V              65
+#define GLFW_NULL_SC_W              66
+#define GLFW_NULL_SC_X              67
+#define GLFW_NULL_SC_Y              68
+#define GLFW_NULL_SC_Z              69
+#define GLFW_NULL_SC_F1             70
+#define GLFW_NULL_SC_F2             71
+#define GLFW_NULL_SC_F3             72
+#define GLFW_NULL_SC_F4             73
+#define GLFW_NULL_SC_F5             74
+#define GLFW_NULL_SC_F6             75
+#define GLFW_NULL_SC_F7             76
+#define GLFW_NULL_SC_F8             77
+#define GLFW_NULL_SC_F9             78
+#define GLFW_NULL_SC_F10            79
+#define GLFW_NULL_SC_F11            80
+#define GLFW_NULL_SC_F12            81
+#define GLFW_NULL_SC_F13            82
+#define GLFW_NULL_SC_F14            83
+#define GLFW_NULL_SC_F15            84
+#define GLFW_NULL_SC_F16            85
+#define GLFW_NULL_SC_F17            86
+#define GLFW_NULL_SC_F18            87
+#define GLFW_NULL_SC_F19            88
+#define GLFW_NULL_SC_F20            89
+#define GLFW_NULL_SC_F21            90
+#define GLFW_NULL_SC_F22            91
+#define GLFW_NULL_SC_F23            92
+#define GLFW_NULL_SC_F24            93
+#define GLFW_NULL_SC_F25            94
+#define GLFW_NULL_SC_KP_0           95
+#define GLFW_NULL_SC_KP_1           96
+#define GLFW_NULL_SC_KP_2           97
+#define GLFW_NULL_SC_KP_3           98
+#define GLFW_NULL_SC_KP_4           99
+#define GLFW_NULL_SC_KP_5           100
+#define GLFW_NULL_SC_KP_6           101
+#define GLFW_NULL_SC_KP_7           102
+#define GLFW_NULL_SC_KP_8           103
+#define GLFW_NULL_SC_KP_9           104
+#define GLFW_NULL_SC_KP_DECIMAL     105
+#define GLFW_NULL_SC_KP_DIVIDE      106
+#define GLFW_NULL_SC_KP_MULTIPLY    107
+#define GLFW_NULL_SC_KP_SUBTRACT    108
+#define GLFW_NULL_SC_KP_ADD         109
+#define GLFW_NULL_SC_KP_ENTER       110
+#define GLFW_NULL_SC_KP_EQUAL       111
+#define GLFW_NULL_SC_LEFT_SHIFT     112
+#define GLFW_NULL_SC_LEFT_CONTROL   113
+#define GLFW_NULL_SC_LEFT_ALT       114
+#define GLFW_NULL_SC_LEFT_SUPER     115
+#define GLFW_NULL_SC_RIGHT_SHIFT    116
+#define GLFW_NULL_SC_RIGHT_CONTROL  117
+#define GLFW_NULL_SC_RIGHT_ALT      118
+#define GLFW_NULL_SC_RIGHT_SUPER    119
+#define GLFW_NULL_SC_MENU           120
+#define GLFW_NULL_SC_LAST           GLFW_NULL_SC_MENU
+
+// Null-specific per-window data
+//
+typedef struct _GLFWwindowNull
+{
+    int             xpos;
+    int             ypos;
+    int             width;
+    int             height;
+    GLFWbool        visible;
+    GLFWbool        iconified;
+    GLFWbool        maximized;
+    GLFWbool        resizable;
+    GLFWbool        decorated;
+    GLFWbool        floating;
+    GLFWbool        transparent;
+    float           opacity;
+} _GLFWwindowNull;
+
+// Null-specific per-monitor data
+//
+typedef struct _GLFWmonitorNull
+{
+    GLFWgammaramp   ramp;
+} _GLFWmonitorNull;
+
+// Null-specific global data
+//
+typedef struct _GLFWlibraryNull
+{
+    int             xcursor;
+    int             ycursor;
+    char*           clipboardString;
+    _GLFWwindow*    focusedWindow;
+    uint16_t        keycodes[GLFW_NULL_SC_LAST + 1];
+    uint8_t         scancodes[GLFW_KEY_LAST + 1];
+} _GLFWlibraryNull;
+
+void _glfwPollMonitorsNull(void);
+
+GLFWbool _glfwConnectNull(int platformID, _GLFWplatform* platform);
+int _glfwInitNull(void);
+void _glfwTerminateNull(void);
+
+void _glfwFreeMonitorNull(_GLFWmonitor* monitor);
+void _glfwGetMonitorPosNull(_GLFWmonitor* monitor, int* xpos, int* ypos);
+void _glfwGetMonitorContentScaleNull(_GLFWmonitor* monitor, float* xscale, float* yscale);
+void _glfwGetMonitorWorkareaNull(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+GLFWvidmode* _glfwGetVideoModesNull(_GLFWmonitor* monitor, int* found);
+GLFWbool _glfwGetVideoModeNull(_GLFWmonitor* monitor, GLFWvidmode* mode);
+GLFWbool _glfwGetGammaRampNull(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
+void _glfwSetGammaRampNull(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+
+GLFWbool _glfwCreateWindowNull(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
+void _glfwDestroyWindowNull(_GLFWwindow* window);
+void _glfwSetWindowTitleNull(_GLFWwindow* window, const char* title);
+void _glfwSetWindowIconNull(_GLFWwindow* window, int count, const GLFWimage* images);
+void _glfwSetWindowMonitorNull(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+void _glfwGetWindowPosNull(_GLFWwindow* window, int* xpos, int* ypos);
+void _glfwSetWindowPosNull(_GLFWwindow* window, int xpos, int ypos);
+void _glfwGetWindowSizeNull(_GLFWwindow* window, int* width, int* height);
+void _glfwSetWindowSizeNull(_GLFWwindow* window, int width, int height);
+void _glfwSetWindowSizeLimitsNull(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+void _glfwSetWindowAspectRatioNull(_GLFWwindow* window, int n, int d);
+void _glfwGetFramebufferSizeNull(_GLFWwindow* window, int* width, int* height);
+void _glfwGetWindowFrameSizeNull(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+void _glfwGetWindowContentScaleNull(_GLFWwindow* window, float* xscale, float* yscale);
+void _glfwIconifyWindowNull(_GLFWwindow* window);
+void _glfwRestoreWindowNull(_GLFWwindow* window);
+void _glfwMaximizeWindowNull(_GLFWwindow* window);
+GLFWbool _glfwWindowMaximizedNull(_GLFWwindow* window);
+GLFWbool _glfwWindowHoveredNull(_GLFWwindow* window);
+GLFWbool _glfwFramebufferTransparentNull(_GLFWwindow* window);
+void _glfwSetWindowResizableNull(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowDecoratedNull(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowFloatingNull(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowMousePassthroughNull(_GLFWwindow* window, GLFWbool enabled);
+float _glfwGetWindowOpacityNull(_GLFWwindow* window);
+void _glfwSetWindowOpacityNull(_GLFWwindow* window, float opacity);
+void _glfwSetRawMouseMotionNull(_GLFWwindow *window, GLFWbool enabled);
+GLFWbool _glfwRawMouseMotionSupportedNull(void);
+void _glfwShowWindowNull(_GLFWwindow* window);
+void _glfwRequestWindowAttentionNull(_GLFWwindow* window);
+void _glfwHideWindowNull(_GLFWwindow* window);
+void _glfwFocusWindowNull(_GLFWwindow* window);
+GLFWbool _glfwWindowFocusedNull(_GLFWwindow* window);
+GLFWbool _glfwWindowIconifiedNull(_GLFWwindow* window);
+GLFWbool _glfwWindowVisibleNull(_GLFWwindow* window);
+void _glfwPollEventsNull(void);
+void _glfwWaitEventsNull(void);
+void _glfwWaitEventsTimeoutNull(double timeout);
+void _glfwPostEmptyEventNull(void);
+void _glfwGetCursorPosNull(_GLFWwindow* window, double* xpos, double* ypos);
+void _glfwSetCursorPosNull(_GLFWwindow* window, double x, double y);
+void _glfwSetCursorModeNull(_GLFWwindow* window, int mode);
+GLFWbool _glfwCreateCursorNull(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
+GLFWbool _glfwCreateStandardCursorNull(_GLFWcursor* cursor, int shape);
+void _glfwDestroyCursorNull(_GLFWcursor* cursor);
+void _glfwSetCursorNull(_GLFWwindow* window, _GLFWcursor* cursor);
+void _glfwSetClipboardStringNull(const char* string);
+const char* _glfwGetClipboardStringNull(void);
+const char* _glfwGetScancodeNameNull(int scancode);
+int _glfwGetKeyScancodeNull(int key);
+
+EGLenum _glfwGetEGLPlatformNull(EGLint** attribs);
+EGLNativeDisplayType _glfwGetEGLNativeDisplayNull(void);
+EGLNativeWindowType _glfwGetEGLNativeWindowNull(_GLFWwindow* window);
+
+void _glfwGetRequiredInstanceExtensionsNull(char** extensions);
+GLFWbool _glfwGetPhysicalDevicePresentationSupportNull(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+VkResult _glfwCreateWindowSurfaceNull(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+
+void _glfwPollMonitorsNull(void);
+

raylib/external/glfw/src/null_window.c

@@ -0,0 +1,720 @@
+//========================================================================
+// GLFW 3.4 (modified for raylib) - www.glfw.org; www.raylib.com
+//------------------------------------------------------------------------
+// Copyright (c) 2016 Google Inc.
+// Copyright (c) 2016-2019 Camilla Löwy <elmindreda@glfw.org>
+// Copyright (c) 2024 M374LX <wilsalx@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdlib.h>
+
+static void applySizeLimits(_GLFWwindow* window, int* width, int* height)
+{
+    if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE)
+    {
+        const float ratio = (float) window->numer / (float) window->denom;
+        *height = (int) (*width / ratio);
+    }
+
+    if (window->minwidth != GLFW_DONT_CARE)
+        *width = _glfw_max(*width, window->minwidth);
+    else if (window->maxwidth != GLFW_DONT_CARE)
+        *width = _glfw_min(*width, window->maxwidth);
+
+    if (window->minheight != GLFW_DONT_CARE)
+        *height = _glfw_min(*height, window->minheight);
+    else if (window->maxheight != GLFW_DONT_CARE)
+        *height = _glfw_max(*height, window->maxheight);
+}
+
+static void fitToMonitor(_GLFWwindow* window)
+{
+    GLFWvidmode mode;
+    _glfwGetVideoModeNull(window->monitor, &mode);
+    _glfwGetMonitorPosNull(window->monitor,
+                           &window->null.xpos,
+                           &window->null.ypos);
+    window->null.width = mode.width;
+    window->null.height = mode.height;
+}
+
+static void acquireMonitorNull(_GLFWwindow* window)
+{
+    _glfwInputMonitorWindow(window->monitor, window);
+}
+
+static void releaseMonitorNull(_GLFWwindow* window)
+{
+    if (window->monitor->window != window)
+        return;
+
+    _glfwInputMonitorWindow(window->monitor, NULL);
+}
+
+static int createNativeWindow(_GLFWwindow* window,
+                              const _GLFWwndconfig* wndconfig,
+                              const _GLFWfbconfig* fbconfig)
+{
+    if (window->monitor)
+        fitToMonitor(window);
+    else
+    {
+        if (wndconfig->xpos == GLFW_ANY_POSITION && wndconfig->ypos == GLFW_ANY_POSITION)
+        {
+            window->null.xpos = 17;
+            window->null.ypos = 17;
+        }
+        else
+        {
+            window->null.xpos = wndconfig->xpos;
+            window->null.ypos = wndconfig->ypos;
+        }
+
+        window->null.width = wndconfig->width;
+        window->null.height = wndconfig->height;
+    }
+
+    window->null.visible = wndconfig->visible;
+    window->null.decorated = wndconfig->decorated;
+    window->null.maximized = wndconfig->maximized;
+    window->null.floating = wndconfig->floating;
+    window->null.transparent = fbconfig->transparent;
+    window->null.opacity = 1.f;
+
+    return GLFW_TRUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwCreateWindowNull(_GLFWwindow* window,
+                               const _GLFWwndconfig* wndconfig,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig)
+{
+    if (!createNativeWindow(window, wndconfig, fbconfig))
+        return GLFW_FALSE;
+
+    if (ctxconfig->client != GLFW_NO_API)
+    {
+        if (ctxconfig->source == GLFW_NATIVE_CONTEXT_API ||
+            ctxconfig->source == GLFW_OSMESA_CONTEXT_API)
+        {
+            if (!_glfwInitOSMesa())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+        else if (ctxconfig->source == GLFW_EGL_CONTEXT_API)
+        {
+            if (!_glfwInitEGL())
+                return GLFW_FALSE;
+            if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig))
+                return GLFW_FALSE;
+        }
+
+        if (!_glfwRefreshContextAttribs(window, ctxconfig))
+            return GLFW_FALSE;
+    }
+
+    if (wndconfig->mousePassthrough)
+        _glfwSetWindowMousePassthroughNull(window, GLFW_TRUE);
+
+    if (window->monitor)
+    {
+        _glfwShowWindowNull(window);
+        _glfwFocusWindowNull(window);
+        acquireMonitorNull(window);
+
+        if (wndconfig->centerCursor)
+            _glfwCenterCursorInContentArea(window);
+    }
+    else
+    {
+        if (wndconfig->visible)
+        {
+            _glfwShowWindowNull(window);
+            if (wndconfig->focused)
+                _glfwFocusWindowNull(window);
+        }
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwDestroyWindowNull(_GLFWwindow* window)
+{
+    if (window->monitor)
+        releaseMonitorNull(window);
+
+    if (_glfw.null.focusedWindow == window)
+        _glfw.null.focusedWindow = NULL;
+
+    if (window->context.destroy)
+        window->context.destroy(window);
+}
+
+void _glfwSetWindowTitleNull(_GLFWwindow* window, const char* title)
+{
+}
+
+void _glfwSetWindowIconNull(_GLFWwindow* window, int count, const GLFWimage* images)
+{
+}
+
+void _glfwSetWindowMonitorNull(_GLFWwindow* window,
+                               _GLFWmonitor* monitor,
+                               int xpos, int ypos,
+                               int width, int height,
+                               int refreshRate)
+{
+    if (window->monitor == monitor)
+    {
+        if (!monitor)
+        {
+            _glfwSetWindowPosNull(window, xpos, ypos);
+            _glfwSetWindowSizeNull(window, width, height);
+        }
+
+        return;
+    }
+
+    if (window->monitor)
+        releaseMonitorNull(window);
+
+    _glfwInputWindowMonitor(window, monitor);
+
+    if (window->monitor)
+    {
+        window->null.visible = GLFW_TRUE;
+        acquireMonitorNull(window);
+        fitToMonitor(window);
+    }
+    else
+    {
+        _glfwSetWindowPosNull(window, xpos, ypos);
+        _glfwSetWindowSizeNull(window, width, height);
+    }
+}
+
+void _glfwGetWindowPosNull(_GLFWwindow* window, int* xpos, int* ypos)
+{
+    if (xpos)
+        *xpos = window->null.xpos;
+    if (ypos)
+        *ypos = window->null.ypos;
+}
+
+void _glfwSetWindowPosNull(_GLFWwindow* window, int xpos, int ypos)
+{
+    if (window->monitor)
+        return;
+
+    if (window->null.xpos != xpos || window->null.ypos != ypos)
+    {
+        window->null.xpos = xpos;
+        window->null.ypos = ypos;
+        _glfwInputWindowPos(window, xpos, ypos);
+    }
+}
+
+void _glfwGetWindowSizeNull(_GLFWwindow* window, int* width, int* height)
+{
+    if (width)
+        *width = window->null.width;
+    if (height)
+        *height = window->null.height;
+}
+
+void _glfwSetWindowSizeNull(_GLFWwindow* window, int width, int height)
+{
+    if (window->monitor)
+        return;
+
+    if (window->null.width != width || window->null.height != height)
+    {
+        window->null.width = width;
+        window->null.height = height;
+        _glfwInputFramebufferSize(window, width, height);
+        _glfwInputWindowDamage(window);
+        _glfwInputWindowSize(window, width, height);
+    }
+}
+
+void _glfwSetWindowSizeLimitsNull(_GLFWwindow* window,
+                                  int minwidth, int minheight,
+                                  int maxwidth, int maxheight)
+{
+    int width = window->null.width;
+    int height = window->null.height;
+    applySizeLimits(window, &width, &height);
+    _glfwSetWindowSizeNull(window, width, height);
+}
+
+void _glfwSetWindowAspectRatioNull(_GLFWwindow* window, int n, int d)
+{
+    int width = window->null.width;
+    int height = window->null.height;
+    applySizeLimits(window, &width, &height);
+    _glfwSetWindowSizeNull(window, width, height);
+}
+
+void _glfwGetFramebufferSizeNull(_GLFWwindow* window, int* width, int* height)
+{
+    if (width)
+        *width = window->null.width;
+    if (height)
+        *height = window->null.height;
+}
+
+void _glfwGetWindowFrameSizeNull(_GLFWwindow* window,
+                                 int* left, int* top,
+                                 int* right, int* bottom)
+{
+    if (window->null.decorated && !window->monitor)
+    {
+        if (left)
+            *left = 1;
+        if (top)
+            *top = 10;
+        if (right)
+            *right = 1;
+        if (bottom)
+            *bottom = 1;
+    }
+    else
+    {
+        if (left)
+            *left = 0;
+        if (top)
+            *top = 0;
+        if (right)
+            *right = 0;
+        if (bottom)
+            *bottom = 0;
+    }
+}
+
+void _glfwGetWindowContentScaleNull(_GLFWwindow* window, float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = 1.f;
+    if (yscale)
+        *yscale = 1.f;
+}
+
+void _glfwIconifyWindowNull(_GLFWwindow* window)
+{
+    if (_glfw.null.focusedWindow == window)
+    {
+        _glfw.null.focusedWindow = NULL;
+        _glfwInputWindowFocus(window, GLFW_FALSE);
+    }
+
+    if (!window->null.iconified)
+    {
+        window->null.iconified = GLFW_TRUE;
+        _glfwInputWindowIconify(window, GLFW_TRUE);
+
+        if (window->monitor)
+            releaseMonitorNull(window);
+    }
+}
+
+void _glfwRestoreWindowNull(_GLFWwindow* window)
+{
+    if (window->null.iconified)
+    {
+        window->null.iconified = GLFW_FALSE;
+        _glfwInputWindowIconify(window, GLFW_FALSE);
+
+        if (window->monitor)
+            acquireMonitorNull(window);
+    }
+    else if (window->null.maximized)
+    {
+        window->null.maximized = GLFW_FALSE;
+        _glfwInputWindowMaximize(window, GLFW_FALSE);
+    }
+}
+
+void _glfwMaximizeWindowNull(_GLFWwindow* window)
+{
+    if (!window->null.maximized)
+    {
+        window->null.maximized = GLFW_TRUE;
+        _glfwInputWindowMaximize(window, GLFW_TRUE);
+    }
+}
+
+GLFWbool _glfwWindowMaximizedNull(_GLFWwindow* window)
+{
+    return window->null.maximized;
+}
+
+GLFWbool _glfwWindowHoveredNull(_GLFWwindow* window)
+{
+    return _glfw.null.xcursor >= window->null.xpos &&
+           _glfw.null.ycursor >= window->null.ypos &&
+           _glfw.null.xcursor <= window->null.xpos + window->null.width - 1 &&
+           _glfw.null.ycursor <= window->null.ypos + window->null.height - 1;
+}
+
+GLFWbool _glfwFramebufferTransparentNull(_GLFWwindow* window)
+{
+    return window->null.transparent;
+}
+
+void _glfwSetWindowResizableNull(_GLFWwindow* window, GLFWbool enabled)
+{
+    window->null.resizable = enabled;
+}
+
+void _glfwSetWindowDecoratedNull(_GLFWwindow* window, GLFWbool enabled)
+{
+    window->null.decorated = enabled;
+}
+
+void _glfwSetWindowFloatingNull(_GLFWwindow* window, GLFWbool enabled)
+{
+    window->null.floating = enabled;
+}
+
+void _glfwSetWindowMousePassthroughNull(_GLFWwindow* window, GLFWbool enabled)
+{
+}
+
+float _glfwGetWindowOpacityNull(_GLFWwindow* window)
+{
+    return window->null.opacity;
+}
+
+void _glfwSetWindowOpacityNull(_GLFWwindow* window, float opacity)
+{
+    window->null.opacity = opacity;
+}
+
+void _glfwSetRawMouseMotionNull(_GLFWwindow *window, GLFWbool enabled)
+{
+}
+
+GLFWbool _glfwRawMouseMotionSupportedNull(void)
+{
+    return GLFW_TRUE;
+}
+
+void _glfwShowWindowNull(_GLFWwindow* window)
+{
+    window->null.visible = GLFW_TRUE;
+}
+
+void _glfwRequestWindowAttentionNull(_GLFWwindow* window)
+{
+}
+
+void _glfwHideWindowNull(_GLFWwindow* window)
+{
+    if (_glfw.null.focusedWindow == window)
+    {
+        _glfw.null.focusedWindow = NULL;
+        _glfwInputWindowFocus(window, GLFW_FALSE);
+    }
+
+    window->null.visible = GLFW_FALSE;
+}
+
+void _glfwFocusWindowNull(_GLFWwindow* window)
+{
+    _GLFWwindow* previous;
+
+    if (_glfw.null.focusedWindow == window)
+        return;
+
+    if (!window->null.visible)
+        return;
+
+    previous = _glfw.null.focusedWindow;
+    _glfw.null.focusedWindow = window;
+
+    if (previous)
+    {
+        _glfwInputWindowFocus(previous, GLFW_FALSE);
+        if (previous->monitor && previous->autoIconify)
+            _glfwIconifyWindowNull(previous);
+    }
+
+    _glfwInputWindowFocus(window, GLFW_TRUE);
+}
+
+GLFWbool _glfwWindowFocusedNull(_GLFWwindow* window)
+{
+    return _glfw.null.focusedWindow == window;
+}
+
+GLFWbool _glfwWindowIconifiedNull(_GLFWwindow* window)
+{
+    return window->null.iconified;
+}
+
+GLFWbool _glfwWindowVisibleNull(_GLFWwindow* window)
+{
+    return window->null.visible;
+}
+
+void _glfwPollEventsNull(void)
+{
+}
+
+void _glfwWaitEventsNull(void)
+{
+}
+
+void _glfwWaitEventsTimeoutNull(double timeout)
+{
+}
+
+void _glfwPostEmptyEventNull(void)
+{
+}
+
+void _glfwGetCursorPosNull(_GLFWwindow* window, double* xpos, double* ypos)
+{
+    if (xpos)
+        *xpos = _glfw.null.xcursor - window->null.xpos;
+    if (ypos)
+        *ypos = _glfw.null.ycursor - window->null.ypos;
+}
+
+void _glfwSetCursorPosNull(_GLFWwindow* window, double x, double y)
+{
+    _glfw.null.xcursor = window->null.xpos + (int) x;
+    _glfw.null.ycursor = window->null.ypos + (int) y;
+}
+
+void _glfwSetCursorModeNull(_GLFWwindow* window, int mode)
+{
+}
+
+GLFWbool _glfwCreateCursorNull(_GLFWcursor* cursor,
+                               const GLFWimage* image,
+                               int xhot, int yhot)
+{
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwCreateStandardCursorNull(_GLFWcursor* cursor, int shape)
+{
+    return GLFW_TRUE;
+}
+
+void _glfwDestroyCursorNull(_GLFWcursor* cursor)
+{
+}
+
+void _glfwSetCursorNull(_GLFWwindow* window, _GLFWcursor* cursor)
+{
+}
+
+void _glfwSetClipboardStringNull(const char* string)
+{
+    char* copy = _glfw_strdup(string);
+    _glfw_free(_glfw.null.clipboardString);
+    _glfw.null.clipboardString = copy;
+}
+
+const char* _glfwGetClipboardStringNull(void)
+{
+    return _glfw.null.clipboardString;
+}
+
+EGLenum _glfwGetEGLPlatformNull(EGLint** attribs)
+{
+    return 0;
+}
+
+EGLNativeDisplayType _glfwGetEGLNativeDisplayNull(void)
+{
+    return 0;
+}
+
+EGLNativeWindowType _glfwGetEGLNativeWindowNull(_GLFWwindow* window)
+{
+    return 0;
+}
+
+const char* _glfwGetScancodeNameNull(int scancode)
+{
+    if (scancode < GLFW_NULL_SC_FIRST || scancode > GLFW_NULL_SC_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE, "Invalid scancode %i", scancode);
+        return NULL;
+    }
+
+    switch (scancode)
+    {
+        case GLFW_NULL_SC_APOSTROPHE:
+            return "'";
+        case GLFW_NULL_SC_COMMA:
+            return ",";
+        case GLFW_NULL_SC_MINUS:
+        case GLFW_NULL_SC_KP_SUBTRACT:
+            return "-";
+        case GLFW_NULL_SC_PERIOD:
+        case GLFW_NULL_SC_KP_DECIMAL:
+            return ".";
+        case GLFW_NULL_SC_SLASH:
+        case GLFW_NULL_SC_KP_DIVIDE:
+            return "/";
+        case GLFW_NULL_SC_SEMICOLON:
+            return ";";
+        case GLFW_NULL_SC_EQUAL:
+        case GLFW_NULL_SC_KP_EQUAL:
+            return "=";
+        case GLFW_NULL_SC_LEFT_BRACKET:
+            return "[";
+        case GLFW_NULL_SC_RIGHT_BRACKET:
+            return "]";
+        case GLFW_NULL_SC_KP_MULTIPLY:
+            return "*";
+        case GLFW_NULL_SC_KP_ADD:
+            return "+";
+        case GLFW_NULL_SC_BACKSLASH:
+        case GLFW_NULL_SC_WORLD_1:
+        case GLFW_NULL_SC_WORLD_2:
+            return "\\";
+        case GLFW_NULL_SC_0:
+        case GLFW_NULL_SC_KP_0:
+            return "0";
+        case GLFW_NULL_SC_1:
+        case GLFW_NULL_SC_KP_1:
+            return "1";
+        case GLFW_NULL_SC_2:
+        case GLFW_NULL_SC_KP_2:
+            return "2";
+        case GLFW_NULL_SC_3:
+        case GLFW_NULL_SC_KP_3:
+            return "3";
+        case GLFW_NULL_SC_4:
+        case GLFW_NULL_SC_KP_4:
+            return "4";
+        case GLFW_NULL_SC_5:
+        case GLFW_NULL_SC_KP_5:
+            return "5";
+        case GLFW_NULL_SC_6:
+        case GLFW_NULL_SC_KP_6:
+            return "6";
+        case GLFW_NULL_SC_7:
+        case GLFW_NULL_SC_KP_7:
+            return "7";
+        case GLFW_NULL_SC_8:
+        case GLFW_NULL_SC_KP_8:
+            return "8";
+        case GLFW_NULL_SC_9:
+        case GLFW_NULL_SC_KP_9:
+            return "9";
+        case GLFW_NULL_SC_A:
+            return "a";
+        case GLFW_NULL_SC_B:
+            return "b";
+        case GLFW_NULL_SC_C:
+            return "c";
+        case GLFW_NULL_SC_D:
+            return "d";
+        case GLFW_NULL_SC_E:
+            return "e";
+        case GLFW_NULL_SC_F:
+            return "f";
+        case GLFW_NULL_SC_G:
+            return "g";
+        case GLFW_NULL_SC_H:
+            return "h";
+        case GLFW_NULL_SC_I:
+            return "i";
+        case GLFW_NULL_SC_J:
+            return "j";
+        case GLFW_NULL_SC_K:
+            return "k";
+        case GLFW_NULL_SC_L:
+            return "l";
+        case GLFW_NULL_SC_M:
+            return "m";
+        case GLFW_NULL_SC_N:
+            return "n";
+        case GLFW_NULL_SC_O:
+            return "o";
+        case GLFW_NULL_SC_P:
+            return "p";
+        case GLFW_NULL_SC_Q:
+            return "q";
+        case GLFW_NULL_SC_R:
+            return "r";
+        case GLFW_NULL_SC_S:
+            return "s";
+        case GLFW_NULL_SC_T:
+            return "t";
+        case GLFW_NULL_SC_U:
+            return "u";
+        case GLFW_NULL_SC_V:
+            return "v";
+        case GLFW_NULL_SC_W:
+            return "w";
+        case GLFW_NULL_SC_X:
+            return "x";
+        case GLFW_NULL_SC_Y:
+            return "y";
+        case GLFW_NULL_SC_Z:
+            return "z";
+    }
+
+    return NULL;
+}
+
+int _glfwGetKeyScancodeNull(int key)
+{
+    return _glfw.null.scancodes[key];
+}
+
+void _glfwGetRequiredInstanceExtensionsNull(char** extensions)
+{
+}
+
+GLFWbool _glfwGetPhysicalDevicePresentationSupportNull(VkInstance instance,
+                                                       VkPhysicalDevice device,
+                                                       uint32_t queuefamily)
+{
+    return GLFW_FALSE;
+}
+
+VkResult _glfwCreateWindowSurfaceNull(VkInstance instance,
+                                      _GLFWwindow* window,
+                                      const VkAllocationCallbacks* allocator,
+                                      VkSurfaceKHR* surface)
+{
+    // This seems like the most appropriate error to return here
+    return VK_ERROR_EXTENSION_NOT_PRESENT;
+}
+

raylib/external/glfw/src/osmesa_context.c

@@ -0,0 +1,383 @@
+//========================================================================
+// GLFW 3.4 OSMesa - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2016 Google Inc.
+// Copyright (c) 2016-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+static void makeContextCurrentOSMesa(_GLFWwindow* window)
+{
+    if (window)
+    {
+        int width, height;
+        _glfw.platform.getFramebufferSize(window, &width, &height);
+
+        // Check to see if we need to allocate a new buffer
+        if ((window->context.osmesa.buffer == NULL) ||
+            (width != window->context.osmesa.width) ||
+            (height != window->context.osmesa.height))
+        {
+            _glfw_free(window->context.osmesa.buffer);
+
+            // Allocate the new buffer (width * height * 8-bit RGBA)
+            window->context.osmesa.buffer = _glfw_calloc(4, (size_t) width * height);
+            window->context.osmesa.width  = width;
+            window->context.osmesa.height = height;
+        }
+
+        if (!OSMesaMakeCurrent(window->context.osmesa.handle,
+                               window->context.osmesa.buffer,
+                               GL_UNSIGNED_BYTE,
+                               width, height))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "OSMesa: Failed to make context current");
+            return;
+        }
+    }
+
+    _glfwPlatformSetTls(&_glfw.contextSlot, window);
+}
+
+static GLFWglproc getProcAddressOSMesa(const char* procname)
+{
+    return (GLFWglproc) OSMesaGetProcAddress(procname);
+}
+
+static void destroyContextOSMesa(_GLFWwindow* window)
+{
+    if (window->context.osmesa.handle)
+    {
+        OSMesaDestroyContext(window->context.osmesa.handle);
+        window->context.osmesa.handle = NULL;
+    }
+
+    if (window->context.osmesa.buffer)
+    {
+        _glfw_free(window->context.osmesa.buffer);
+        window->context.osmesa.width = 0;
+        window->context.osmesa.height = 0;
+    }
+}
+
+static void swapBuffersOSMesa(_GLFWwindow* window)
+{
+    // No double buffering on OSMesa
+}
+
+static void swapIntervalOSMesa(int interval)
+{
+    // No swap interval on OSMesa
+}
+
+static int extensionSupportedOSMesa(const char* extension)
+{
+    // OSMesa does not have extensions
+    return GLFW_FALSE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitOSMesa(void)
+{
+    int i;
+    const char* sonames[] =
+    {
+#if defined(_GLFW_OSMESA_LIBRARY)
+        _GLFW_OSMESA_LIBRARY,
+#elif defined(_WIN32)
+        "libOSMesa.dll",
+        "OSMesa.dll",
+#elif defined(__APPLE__)
+        "libOSMesa.8.dylib",
+#elif defined(__CYGWIN__)
+        "libOSMesa-8.so",
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+        "libOSMesa.so",
+#else
+        "libOSMesa.so.8",
+        "libOSMesa.so.6",
+#endif
+        NULL
+    };
+
+    if (_glfw.osmesa.handle)
+        return GLFW_TRUE;
+
+    for (i = 0;  sonames[i];  i++)
+    {
+        _glfw.osmesa.handle = _glfwPlatformLoadModule(sonames[i]);
+        if (_glfw.osmesa.handle)
+            break;
+    }
+
+    if (!_glfw.osmesa.handle)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE, "OSMesa: Library not found");
+        return GLFW_FALSE;
+    }
+
+    _glfw.osmesa.CreateContextExt = (PFN_OSMesaCreateContextExt)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaCreateContextExt");
+    _glfw.osmesa.CreateContextAttribs = (PFN_OSMesaCreateContextAttribs)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaCreateContextAttribs");
+    _glfw.osmesa.DestroyContext = (PFN_OSMesaDestroyContext)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaDestroyContext");
+    _glfw.osmesa.MakeCurrent = (PFN_OSMesaMakeCurrent)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaMakeCurrent");
+    _glfw.osmesa.GetColorBuffer = (PFN_OSMesaGetColorBuffer)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaGetColorBuffer");
+    _glfw.osmesa.GetDepthBuffer = (PFN_OSMesaGetDepthBuffer)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaGetDepthBuffer");
+    _glfw.osmesa.GetProcAddress = (PFN_OSMesaGetProcAddress)
+        _glfwPlatformGetModuleSymbol(_glfw.osmesa.handle, "OSMesaGetProcAddress");
+
+    if (!_glfw.osmesa.CreateContextExt ||
+        !_glfw.osmesa.DestroyContext ||
+        !_glfw.osmesa.MakeCurrent ||
+        !_glfw.osmesa.GetColorBuffer ||
+        !_glfw.osmesa.GetDepthBuffer ||
+        !_glfw.osmesa.GetProcAddress)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "OSMesa: Failed to load required entry points");
+
+        _glfwTerminateOSMesa();
+        return GLFW_FALSE;
+    }
+
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateOSMesa(void)
+{
+    if (_glfw.osmesa.handle)
+    {
+        _glfwPlatformFreeModule(_glfw.osmesa.handle);
+        _glfw.osmesa.handle = NULL;
+    }
+}
+
+#define SET_ATTRIB(a, v) \
+{ \
+    assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[index++] = a; \
+    attribs[index++] = v; \
+}
+
+GLFWbool _glfwCreateContextOSMesa(_GLFWwindow* window,
+                                  const _GLFWctxconfig* ctxconfig,
+                                  const _GLFWfbconfig* fbconfig)
+{
+    OSMesaContext share = NULL;
+    const int accumBits = fbconfig->accumRedBits +
+                          fbconfig->accumGreenBits +
+                          fbconfig->accumBlueBits +
+                          fbconfig->accumAlphaBits;
+
+    if (ctxconfig->client == GLFW_OPENGL_ES_API)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "OSMesa: OpenGL ES is not available on OSMesa");
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->share)
+        share = ctxconfig->share->context.osmesa.handle;
+
+    if (OSMesaCreateContextAttribs)
+    {
+        int index = 0, attribs[40];
+
+        SET_ATTRIB(OSMESA_FORMAT, OSMESA_RGBA);
+        SET_ATTRIB(OSMESA_DEPTH_BITS, fbconfig->depthBits);
+        SET_ATTRIB(OSMESA_STENCIL_BITS, fbconfig->stencilBits);
+        SET_ATTRIB(OSMESA_ACCUM_BITS, accumBits);
+
+        if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
+        {
+            SET_ATTRIB(OSMESA_PROFILE, OSMESA_CORE_PROFILE);
+        }
+        else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+        {
+            SET_ATTRIB(OSMESA_PROFILE, OSMESA_COMPAT_PROFILE);
+        }
+
+        if (ctxconfig->major != 1 || ctxconfig->minor != 0)
+        {
+            SET_ATTRIB(OSMESA_CONTEXT_MAJOR_VERSION, ctxconfig->major);
+            SET_ATTRIB(OSMESA_CONTEXT_MINOR_VERSION, ctxconfig->minor);
+        }
+
+        if (ctxconfig->forward)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "OSMesa: Forward-compatible contexts not supported");
+            return GLFW_FALSE;
+        }
+
+        SET_ATTRIB(0, 0);
+
+        window->context.osmesa.handle =
+            OSMesaCreateContextAttribs(attribs, share);
+    }
+    else
+    {
+        if (ctxconfig->profile)
+        {
+            _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                            "OSMesa: OpenGL profiles unavailable");
+            return GLFW_FALSE;
+        }
+
+        window->context.osmesa.handle =
+            OSMesaCreateContextExt(OSMESA_RGBA,
+                                   fbconfig->depthBits,
+                                   fbconfig->stencilBits,
+                                   accumBits,
+                                   share);
+    }
+
+    if (window->context.osmesa.handle == NULL)
+    {
+        _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                        "OSMesa: Failed to create context");
+        return GLFW_FALSE;
+    }
+
+    window->context.makeCurrent = makeContextCurrentOSMesa;
+    window->context.swapBuffers = swapBuffersOSMesa;
+    window->context.swapInterval = swapIntervalOSMesa;
+    window->context.extensionSupported = extensionSupportedOSMesa;
+    window->context.getProcAddress = getProcAddressOSMesa;
+    window->context.destroy = destroyContextOSMesa;
+
+    return GLFW_TRUE;
+}
+
+#undef SET_ATTRIB
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI int glfwGetOSMesaColorBuffer(GLFWwindow* handle, int* width,
+                                     int* height, int* format, void** buffer)
+{
+    void* mesaBuffer;
+    GLint mesaWidth, mesaHeight, mesaFormat;
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    if (window->context.source != GLFW_OSMESA_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return GLFW_FALSE;
+    }
+
+    if (!OSMesaGetColorBuffer(window->context.osmesa.handle,
+                              &mesaWidth, &mesaHeight,
+                              &mesaFormat, &mesaBuffer))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "OSMesa: Failed to retrieve color buffer");
+        return GLFW_FALSE;
+    }
+
+    if (width)
+        *width = mesaWidth;
+    if (height)
+        *height = mesaHeight;
+    if (format)
+        *format = mesaFormat;
+    if (buffer)
+        *buffer = mesaBuffer;
+
+    return GLFW_TRUE;
+}
+
+GLFWAPI int glfwGetOSMesaDepthBuffer(GLFWwindow* handle,
+                                     int* width, int* height,
+                                     int* bytesPerValue,
+                                     void** buffer)
+{
+    void* mesaBuffer;
+    GLint mesaWidth, mesaHeight, mesaBytes;
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    if (window->context.source != GLFW_OSMESA_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return GLFW_FALSE;
+    }
+
+    if (!OSMesaGetDepthBuffer(window->context.osmesa.handle,
+                              &mesaWidth, &mesaHeight,
+                              &mesaBytes, &mesaBuffer))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "OSMesa: Failed to retrieve depth buffer");
+        return GLFW_FALSE;
+    }
+
+    if (width)
+        *width = mesaWidth;
+    if (height)
+        *height = mesaHeight;
+    if (bytesPerValue)
+        *bytesPerValue = mesaBytes;
+    if (buffer)
+        *buffer = mesaBuffer;
+
+    return GLFW_TRUE;
+}
+
+GLFWAPI OSMesaContext glfwGetOSMesaContext(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (window->context.source != GLFW_OSMESA_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return NULL;
+    }
+
+    return window->context.osmesa.handle;
+}
+

raylib/external/glfw/src/platform.c

@@ -0,0 +1,204 @@
+//========================================================================
+// GLFW 3.4 (modified for raylib) - www.glfw.org; www.raylib.com
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+// Copyright (c) 2024 M374LX <wilsalx@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <string.h>
+#include <stdlib.h>
+
+// These construct a string literal from individual numeric constants
+#define _GLFW_CONCAT_VERSION(m, n, r) #m "." #n "." #r
+#define _GLFW_MAKE_VERSION(m, n, r) _GLFW_CONCAT_VERSION(m, n, r)
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+static const struct
+{
+    int ID;
+    GLFWbool (*connect)(int,_GLFWplatform*);
+} supportedPlatforms[] =
+{
+#if defined(_GLFW_WIN32)
+    { GLFW_PLATFORM_WIN32, _glfwConnectWin32 },
+#endif
+#if defined(_GLFW_COCOA)
+    { GLFW_PLATFORM_COCOA, _glfwConnectCocoa },
+#endif
+#if defined(_GLFW_WAYLAND)
+    { GLFW_PLATFORM_WAYLAND, _glfwConnectWayland },
+#endif
+#if defined(_GLFW_X11)
+    { GLFW_PLATFORM_X11, _glfwConnectX11 },
+#endif
+};
+
+GLFWbool _glfwSelectPlatform(int desiredID, _GLFWplatform* platform)
+{
+    const size_t count = sizeof(supportedPlatforms) / sizeof(supportedPlatforms[0]);
+    size_t i;
+
+    if (desiredID != GLFW_ANY_PLATFORM &&
+        desiredID != GLFW_PLATFORM_WIN32 &&
+        desiredID != GLFW_PLATFORM_COCOA &&
+        desiredID != GLFW_PLATFORM_WAYLAND &&
+        desiredID != GLFW_PLATFORM_X11 &&
+        desiredID != GLFW_PLATFORM_NULL)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid platform ID 0x%08X", desiredID);
+        return GLFW_FALSE;
+    }
+
+#if defined(_GLFW_WAYLAND) && defined(_GLFW_X11)
+    if (desiredID == GLFW_ANY_PLATFORM)
+    {
+        const char* const session = getenv("XDG_SESSION_TYPE");
+        if (session)
+        {
+            // Only follow XDG_SESSION_TYPE if it is set correctly and the
+            // environment looks plausble; otherwise fall back to detection
+            if (strcmp(session, "wayland") == 0 && getenv("WAYLAND_DISPLAY"))
+                desiredID = GLFW_PLATFORM_WAYLAND;
+            else if (strcmp(session, "x11") == 0 && getenv("DISPLAY"))
+                desiredID = GLFW_PLATFORM_X11;
+        }
+    }
+#endif
+
+    if (desiredID == GLFW_ANY_PLATFORM)
+    {
+        // If there is exactly one platform available for auto-selection, let it emit the
+        // error on failure as the platform-specific error description may be more helpful
+        if (count == 1)
+            return supportedPlatforms[0].connect(supportedPlatforms[0].ID, platform);
+
+        for (i = 0;  i < count;  i++)
+        {
+            if (supportedPlatforms[i].connect(desiredID, platform))
+                return GLFW_TRUE;
+        }
+
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Failed to detect any supported platform");
+    }
+    else
+    {
+        for (i = 0;  i < count;  i++)
+        {
+            if (supportedPlatforms[i].ID == desiredID)
+                return supportedPlatforms[i].connect(desiredID, platform);
+        }
+
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "The requested platform is not supported");
+    }
+
+    return GLFW_FALSE;
+}
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI int glfwGetPlatform(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+    return _glfw.platform.platformID;
+}
+
+GLFWAPI int glfwPlatformSupported(int platformID)
+{
+    const size_t count = sizeof(supportedPlatforms) / sizeof(supportedPlatforms[0]);
+    size_t i;
+
+    if (platformID != GLFW_PLATFORM_WIN32 &&
+        platformID != GLFW_PLATFORM_COCOA &&
+        platformID != GLFW_PLATFORM_WAYLAND &&
+        platformID != GLFW_PLATFORM_X11 &&
+        platformID != GLFW_PLATFORM_NULL)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid platform ID 0x%08X", platformID);
+        return GLFW_FALSE;
+    }
+
+    if (platformID == GLFW_PLATFORM_NULL)
+        return GLFW_TRUE;
+
+    for (i = 0;  i < count;  i++)
+    {
+        if (platformID == supportedPlatforms[i].ID)
+            return GLFW_TRUE;
+    }
+
+    return GLFW_FALSE;
+}
+
+GLFWAPI const char* glfwGetVersionString(void)
+{
+    return _GLFW_MAKE_VERSION(GLFW_VERSION_MAJOR,
+                              GLFW_VERSION_MINOR,
+                              GLFW_VERSION_REVISION)
+#if defined(_GLFW_WIN32)
+        " Win32 WGL"
+#endif
+#if defined(_GLFW_COCOA)
+        " Cocoa NSGL"
+#endif
+#if defined(_GLFW_WAYLAND)
+        " Wayland"
+#endif
+#if defined(_GLFW_X11)
+        " X11 GLX"
+#endif
+        " Null"
+        " EGL"
+        " OSMesa"
+#if defined(__MINGW64_VERSION_MAJOR)
+        " MinGW-w64"
+#elif defined(__MINGW32__)
+        " MinGW"
+#elif defined(_MSC_VER)
+        " VisualC"
+#endif
+#if defined(_GLFW_USE_HYBRID_HPG) || defined(_GLFW_USE_OPTIMUS_HPG)
+        " hybrid-GPU"
+#endif
+#if defined(_POSIX_MONOTONIC_CLOCK)
+        " monotonic"
+#endif
+#if defined(_GLFW_BUILD_DLL)
+#if defined(_WIN32)
+        " DLL"
+#elif defined(__APPLE__)
+        " dynamic"
+#else
+        " shared"
+#endif
+#endif
+        ;
+}
+

raylib/external/glfw/src/platform.h

@@ -0,0 +1,212 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#if defined(GLFW_BUILD_WIN32_TIMER) || \
+    defined(GLFW_BUILD_WIN32_MODULE) || \
+    defined(GLFW_BUILD_WIN32_THREAD) || \
+    defined(GLFW_BUILD_COCOA_TIMER) || \
+    defined(GLFW_BUILD_POSIX_TIMER) || \
+    defined(GLFW_BUILD_POSIX_MODULE) || \
+    defined(GLFW_BUILD_POSIX_THREAD) || \
+    defined(GLFW_BUILD_POSIX_POLL) || \
+    defined(GLFW_BUILD_LINUX_JOYSTICK)
+ #error "You must not define these; define zero or more _GLFW_<platform> macros instead"
+#endif
+
+#include "null_platform.h"
+#define GLFW_EXPOSE_NATIVE_EGL
+#define GLFW_EXPOSE_NATIVE_OSMESA
+
+#if defined(_GLFW_WIN32)
+ #include "win32_platform.h"
+ #define GLFW_EXPOSE_NATIVE_WIN32
+ #define GLFW_EXPOSE_NATIVE_WGL
+#else
+ #define GLFW_WIN32_WINDOW_STATE
+ #define GLFW_WIN32_MONITOR_STATE
+ #define GLFW_WIN32_CURSOR_STATE
+ #define GLFW_WIN32_LIBRARY_WINDOW_STATE
+ #define GLFW_WGL_CONTEXT_STATE
+ #define GLFW_WGL_LIBRARY_CONTEXT_STATE
+#endif
+
+#if defined(_GLFW_COCOA)
+ #include "cocoa_platform.h"
+ #define GLFW_EXPOSE_NATIVE_COCOA
+ #define GLFW_EXPOSE_NATIVE_NSGL
+#else
+ #define GLFW_COCOA_WINDOW_STATE
+ #define GLFW_COCOA_MONITOR_STATE
+ #define GLFW_COCOA_CURSOR_STATE
+ #define GLFW_COCOA_LIBRARY_WINDOW_STATE
+ #define GLFW_NSGL_CONTEXT_STATE
+ #define GLFW_NSGL_LIBRARY_CONTEXT_STATE
+#endif
+
+#if defined(_GLFW_WAYLAND)
+ #include "wl_platform.h"
+ #define GLFW_EXPOSE_NATIVE_WAYLAND
+#else
+ #define GLFW_WAYLAND_WINDOW_STATE
+ #define GLFW_WAYLAND_MONITOR_STATE
+ #define GLFW_WAYLAND_CURSOR_STATE
+ #define GLFW_WAYLAND_LIBRARY_WINDOW_STATE
+#endif
+
+#if defined(_GLFW_X11)
+ #include "x11_platform.h"
+ #define GLFW_EXPOSE_NATIVE_X11
+ #define GLFW_EXPOSE_NATIVE_GLX
+#else
+ #define GLFW_X11_WINDOW_STATE
+ #define GLFW_X11_MONITOR_STATE
+ #define GLFW_X11_CURSOR_STATE
+ #define GLFW_X11_LIBRARY_WINDOW_STATE
+ #define GLFW_GLX_CONTEXT_STATE
+ #define GLFW_GLX_LIBRARY_CONTEXT_STATE
+#endif
+
+#include "null_joystick.h"
+
+#if defined(_GLFW_WIN32)
+ #include "win32_joystick.h"
+#else
+ #define GLFW_WIN32_JOYSTICK_STATE
+ #define GLFW_WIN32_LIBRARY_JOYSTICK_STATE
+#endif
+
+#if defined(_GLFW_COCOA)
+ #include "cocoa_joystick.h"
+#else
+ #define GLFW_COCOA_JOYSTICK_STATE
+ #define GLFW_COCOA_LIBRARY_JOYSTICK_STATE
+#endif
+
+#if (defined(_GLFW_X11) || defined(_GLFW_WAYLAND)) && defined(__linux__)
+ #define GLFW_BUILD_LINUX_JOYSTICK
+#endif
+
+#if defined(GLFW_BUILD_LINUX_JOYSTICK)
+ #include "linux_joystick.h"
+#else
+ #define GLFW_LINUX_JOYSTICK_STATE
+ #define GLFW_LINUX_LIBRARY_JOYSTICK_STATE
+#endif
+
+#define GLFW_PLATFORM_WINDOW_STATE \
+        GLFW_WIN32_WINDOW_STATE \
+        GLFW_COCOA_WINDOW_STATE \
+        GLFW_WAYLAND_WINDOW_STATE \
+        GLFW_X11_WINDOW_STATE \
+        GLFW_NULL_WINDOW_STATE \
+
+#define GLFW_PLATFORM_MONITOR_STATE \
+        GLFW_WIN32_MONITOR_STATE \
+        GLFW_COCOA_MONITOR_STATE \
+        GLFW_WAYLAND_MONITOR_STATE \
+        GLFW_X11_MONITOR_STATE \
+        GLFW_NULL_MONITOR_STATE \
+
+#define GLFW_PLATFORM_CURSOR_STATE \
+        GLFW_WIN32_CURSOR_STATE \
+        GLFW_COCOA_CURSOR_STATE \
+        GLFW_WAYLAND_CURSOR_STATE \
+        GLFW_X11_CURSOR_STATE \
+        GLFW_NULL_CURSOR_STATE \
+
+#define GLFW_PLATFORM_JOYSTICK_STATE \
+        GLFW_WIN32_JOYSTICK_STATE \
+        GLFW_COCOA_JOYSTICK_STATE \
+        GLFW_LINUX_JOYSTICK_STATE
+
+#define GLFW_PLATFORM_LIBRARY_WINDOW_STATE \
+        GLFW_WIN32_LIBRARY_WINDOW_STATE \
+        GLFW_COCOA_LIBRARY_WINDOW_STATE \
+        GLFW_WAYLAND_LIBRARY_WINDOW_STATE \
+        GLFW_X11_LIBRARY_WINDOW_STATE \
+        GLFW_NULL_LIBRARY_WINDOW_STATE \
+
+#define GLFW_PLATFORM_LIBRARY_JOYSTICK_STATE \
+        GLFW_WIN32_LIBRARY_JOYSTICK_STATE \
+        GLFW_COCOA_LIBRARY_JOYSTICK_STATE \
+        GLFW_LINUX_LIBRARY_JOYSTICK_STATE
+
+#define GLFW_PLATFORM_CONTEXT_STATE \
+        GLFW_WGL_CONTEXT_STATE \
+        GLFW_NSGL_CONTEXT_STATE \
+        GLFW_GLX_CONTEXT_STATE
+
+#define GLFW_PLATFORM_LIBRARY_CONTEXT_STATE \
+        GLFW_WGL_LIBRARY_CONTEXT_STATE \
+        GLFW_NSGL_LIBRARY_CONTEXT_STATE \
+        GLFW_GLX_LIBRARY_CONTEXT_STATE
+
+#if defined(_WIN32)
+ #define GLFW_BUILD_WIN32_THREAD
+#else
+ #define GLFW_BUILD_POSIX_THREAD
+#endif
+
+#if defined(GLFW_BUILD_WIN32_THREAD)
+ #include "win32_thread.h"
+ #define GLFW_PLATFORM_TLS_STATE    GLFW_WIN32_TLS_STATE
+ #define GLFW_PLATFORM_MUTEX_STATE  GLFW_WIN32_MUTEX_STATE
+#elif defined(GLFW_BUILD_POSIX_THREAD)
+ #include "posix_thread.h"
+ #define GLFW_PLATFORM_TLS_STATE    GLFW_POSIX_TLS_STATE
+ #define GLFW_PLATFORM_MUTEX_STATE  GLFW_POSIX_MUTEX_STATE
+#endif
+
+#if defined(_WIN32)
+ #define GLFW_BUILD_WIN32_TIMER
+#elif defined(__APPLE__)
+ #define GLFW_BUILD_COCOA_TIMER
+#else
+ #define GLFW_BUILD_POSIX_TIMER
+#endif
+
+#if defined(GLFW_BUILD_WIN32_TIMER)
+ #include "win32_time.h"
+ #define GLFW_PLATFORM_LIBRARY_TIMER_STATE  GLFW_WIN32_LIBRARY_TIMER_STATE
+#elif defined(GLFW_BUILD_COCOA_TIMER)
+ #include "cocoa_time.h"
+ #define GLFW_PLATFORM_LIBRARY_TIMER_STATE  GLFW_COCOA_LIBRARY_TIMER_STATE
+#elif defined(GLFW_BUILD_POSIX_TIMER)
+ #include "posix_time.h"
+ #define GLFW_PLATFORM_LIBRARY_TIMER_STATE  GLFW_POSIX_LIBRARY_TIMER_STATE
+#endif
+
+#if defined(_WIN32)
+ #define GLFW_BUILD_WIN32_MODULE
+#else
+ #define GLFW_BUILD_POSIX_MODULE
+#endif
+
+#if defined(_GLFW_WAYLAND) || defined(_GLFW_X11)
+ #define GLFW_BUILD_POSIX_POLL
+#endif
+

raylib/external/glfw/src/posix_module.c

@@ -0,0 +1,53 @@
+//========================================================================
+// GLFW 3.4 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2021 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_POSIX_MODULE)
+
+#include <dlfcn.h>
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void* _glfwPlatformLoadModule(const char* path)
+{
+    return dlopen(path, RTLD_LAZY | RTLD_LOCAL);
+}
+
+void _glfwPlatformFreeModule(void* module)
+{
+    dlclose(module);
+}
+
+GLFWproc _glfwPlatformGetModuleSymbol(void* module, const char* name)
+{
+    return dlsym(module, name);
+}
+
+#endif // GLFW_BUILD_POSIX_MODULE
+

raylib/external/glfw/src/posix_poll.c

@@ -0,0 +1,83 @@
+//========================================================================
+// GLFW 3.4 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2022 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define _GNU_SOURCE
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_POSIX_POLL)
+
+#include <signal.h>
+#include <time.h>
+#include <errno.h>
+
+GLFWbool _glfwPollPOSIX(struct pollfd* fds, nfds_t count, double* timeout)
+{
+    for (;;)
+    {
+        if (timeout)
+        {
+            const uint64_t base = _glfwPlatformGetTimerValue();
+
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__)
+            const time_t seconds = (time_t) *timeout;
+            const long nanoseconds = (long) ((*timeout - seconds) * 1e9);
+            const struct timespec ts = { seconds, nanoseconds };
+            const int result = ppoll(fds, count, &ts, NULL);
+#elif defined(__NetBSD__)
+            const time_t seconds = (time_t) *timeout;
+            const long nanoseconds = (long) ((*timeout - seconds) * 1e9);
+            const struct timespec ts = { seconds, nanoseconds };
+            const int result = pollts(fds, count, &ts, NULL);
+#else
+            const int milliseconds = (int) (*timeout * 1e3);
+            const int result = poll(fds, count, milliseconds);
+#endif
+            const int error = errno; // clock_gettime may overwrite our error
+
+            *timeout -= (_glfwPlatformGetTimerValue() - base) /
+                (double) _glfwPlatformGetTimerFrequency();
+
+            if (result > 0)
+                return GLFW_TRUE;
+            else if (result == -1 && error != EINTR && error != EAGAIN)
+                return GLFW_FALSE;
+            else if (*timeout <= 0.0)
+                return GLFW_FALSE;
+        }
+        else
+        {
+            const int result = poll(fds, count, -1);
+            if (result > 0)
+                return GLFW_TRUE;
+            else if (result == -1 && errno != EINTR && errno != EAGAIN)
+                return GLFW_FALSE;
+        }
+    }
+}
+
+#endif // GLFW_BUILD_POSIX_POLL
+

raylib/external/glfw/src/posix_poll.h

@@ -0,0 +1,30 @@
+//========================================================================
+// GLFW 3.4 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2022 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <poll.h>
+
+GLFWbool _glfwPollPOSIX(struct pollfd* fds, nfds_t count, double* timeout);
+

raylib/external/glfw/src/posix_thread.c

@@ -0,0 +1,107 @@
+//========================================================================
+// GLFW 3.4 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_POSIX_THREAD)
+
+#include <assert.h>
+#include <string.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwPlatformCreateTls(_GLFWtls* tls)
+{
+    assert(tls->posix.allocated == GLFW_FALSE);
+
+    if (pthread_key_create(&tls->posix.key, NULL) != 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "POSIX: Failed to create context TLS");
+        return GLFW_FALSE;
+    }
+
+    tls->posix.allocated = GLFW_TRUE;
+    return GLFW_TRUE;
+}
+
+void _glfwPlatformDestroyTls(_GLFWtls* tls)
+{
+    if (tls->posix.allocated)
+        pthread_key_delete(tls->posix.key);
+    memset(tls, 0, sizeof(_GLFWtls));
+}
+
+void* _glfwPlatformGetTls(_GLFWtls* tls)
+{
+    assert(tls->posix.allocated == GLFW_TRUE);
+    return pthread_getspecific(tls->posix.key);
+}
+
+void _glfwPlatformSetTls(_GLFWtls* tls, void* value)
+{
+    assert(tls->posix.allocated == GLFW_TRUE);
+    pthread_setspecific(tls->posix.key, value);
+}
+
+GLFWbool _glfwPlatformCreateMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->posix.allocated == GLFW_FALSE);
+
+    if (pthread_mutex_init(&mutex->posix.handle, NULL) != 0)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "POSIX: Failed to create mutex");
+        return GLFW_FALSE;
+    }
+
+    return mutex->posix.allocated = GLFW_TRUE;
+}
+
+void _glfwPlatformDestroyMutex(_GLFWmutex* mutex)
+{
+    if (mutex->posix.allocated)
+        pthread_mutex_destroy(&mutex->posix.handle);
+    memset(mutex, 0, sizeof(_GLFWmutex));
+}
+
+void _glfwPlatformLockMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->posix.allocated == GLFW_TRUE);
+    pthread_mutex_lock(&mutex->posix.handle);
+}
+
+void _glfwPlatformUnlockMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->posix.allocated == GLFW_TRUE);
+    pthread_mutex_unlock(&mutex->posix.handle);
+}
+
+#endif // GLFW_BUILD_POSIX_THREAD
+

raylib/external/glfw/src/posix_thread.h

@@ -0,0 +1,49 @@
+//========================================================================
+// GLFW 3.4 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <pthread.h>
+
+#define GLFW_POSIX_TLS_STATE    _GLFWtlsPOSIX   posix;
+#define GLFW_POSIX_MUTEX_STATE  _GLFWmutexPOSIX posix;
+
+
+// POSIX-specific thread local storage data
+//
+typedef struct _GLFWtlsPOSIX
+{
+    GLFWbool        allocated;
+    pthread_key_t   key;
+} _GLFWtlsPOSIX;
+
+// POSIX-specific mutex data
+//
+typedef struct _GLFWmutexPOSIX
+{
+    GLFWbool        allocated;
+    pthread_mutex_t handle;
+} _GLFWmutexPOSIX;
+

raylib/external/glfw/src/posix_time.c

@@ -0,0 +1,65 @@
+//========================================================================
+// GLFW 3.4 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_POSIX_TIMER)
+
+#include <unistd.h>
+#include <sys/time.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwPlatformInitTimer(void)
+{
+    _glfw.timer.posix.clock = CLOCK_REALTIME;
+    _glfw.timer.posix.frequency = 1000000000;
+
+#if defined(_POSIX_MONOTONIC_CLOCK)
+    struct timespec ts;
+    if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0)
+        _glfw.timer.posix.clock = CLOCK_MONOTONIC;
+#endif
+}
+
+uint64_t _glfwPlatformGetTimerValue(void)
+{
+    struct timespec ts;
+    clock_gettime(_glfw.timer.posix.clock, &ts);
+    return (uint64_t) ts.tv_sec * _glfw.timer.posix.frequency + (uint64_t) ts.tv_nsec;
+}
+
+uint64_t _glfwPlatformGetTimerFrequency(void)
+{
+    return _glfw.timer.posix.frequency;
+}
+
+#endif // GLFW_BUILD_POSIX_TIMER
+

raylib/external/glfw/src/posix_time.h

@@ -0,0 +1,41 @@
+//========================================================================
+// GLFW 3.4 POSIX - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define GLFW_POSIX_LIBRARY_TIMER_STATE _GLFWtimerPOSIX posix;
+
+#include <stdint.h>
+#include <time.h>
+
+
+// POSIX-specific global timer data
+//
+typedef struct _GLFWtimerPOSIX
+{
+    clockid_t   clock;
+    uint64_t    frequency;
+} _GLFWtimerPOSIX;
+

raylib/external/glfw/src/vulkan.c

@@ -0,0 +1,328 @@
+//========================================================================
+// GLFW 3.4 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define _GLFW_FIND_LOADER    1
+#define _GLFW_REQUIRE_LOADER 2
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitVulkan(int mode)
+{
+    VkResult err;
+    VkExtensionProperties* ep;
+    PFN_vkEnumerateInstanceExtensionProperties vkEnumerateInstanceExtensionProperties;
+    uint32_t i, count;
+
+    if (_glfw.vk.available)
+        return GLFW_TRUE;
+
+    if (_glfw.hints.init.vulkanLoader)
+        _glfw.vk.GetInstanceProcAddr = _glfw.hints.init.vulkanLoader;
+    else
+    {
+#if defined(_GLFW_VULKAN_LIBRARY)
+        _glfw.vk.handle = _glfwPlatformLoadModule(_GLFW_VULKAN_LIBRARY);
+#elif defined(_GLFW_WIN32)
+        _glfw.vk.handle = _glfwPlatformLoadModule("vulkan-1.dll");
+#elif defined(_GLFW_COCOA)
+        _glfw.vk.handle = _glfwPlatformLoadModule("libvulkan.1.dylib");
+        if (!_glfw.vk.handle)
+            _glfw.vk.handle = _glfwLoadLocalVulkanLoaderCocoa();
+#elif defined(__OpenBSD__) || defined(__NetBSD__)
+        _glfw.vk.handle = _glfwPlatformLoadModule("libvulkan.so");
+#else
+        _glfw.vk.handle = _glfwPlatformLoadModule("libvulkan.so.1");
+#endif
+        if (!_glfw.vk.handle)
+        {
+            if (mode == _GLFW_REQUIRE_LOADER)
+                _glfwInputError(GLFW_API_UNAVAILABLE, "Vulkan: Loader not found");
+
+            return GLFW_FALSE;
+        }
+
+        _glfw.vk.GetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)
+            _glfwPlatformGetModuleSymbol(_glfw.vk.handle, "vkGetInstanceProcAddr");
+        if (!_glfw.vk.GetInstanceProcAddr)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "Vulkan: Loader does not export vkGetInstanceProcAddr");
+
+            _glfwTerminateVulkan();
+            return GLFW_FALSE;
+        }
+    }
+
+    vkEnumerateInstanceExtensionProperties = (PFN_vkEnumerateInstanceExtensionProperties)
+        vkGetInstanceProcAddr(NULL, "vkEnumerateInstanceExtensionProperties");
+    if (!vkEnumerateInstanceExtensionProperties)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Vulkan: Failed to retrieve vkEnumerateInstanceExtensionProperties");
+
+        _glfwTerminateVulkan();
+        return GLFW_FALSE;
+    }
+
+    err = vkEnumerateInstanceExtensionProperties(NULL, &count, NULL);
+    if (err)
+    {
+        // NOTE: This happens on systems with a loader but without any Vulkan ICD
+        if (mode == _GLFW_REQUIRE_LOADER)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "Vulkan: Failed to query instance extension count: %s",
+                            _glfwGetVulkanResultString(err));
+        }
+
+        _glfwTerminateVulkan();
+        return GLFW_FALSE;
+    }
+
+    ep = _glfw_calloc(count, sizeof(VkExtensionProperties));
+
+    err = vkEnumerateInstanceExtensionProperties(NULL, &count, ep);
+    if (err)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Vulkan: Failed to query instance extensions: %s",
+                        _glfwGetVulkanResultString(err));
+
+        _glfw_free(ep);
+        _glfwTerminateVulkan();
+        return GLFW_FALSE;
+    }
+
+    for (i = 0;  i < count;  i++)
+    {
+        if (strcmp(ep[i].extensionName, "VK_KHR_surface") == 0)
+            _glfw.vk.KHR_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_KHR_win32_surface") == 0)
+            _glfw.vk.KHR_win32_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_MVK_macos_surface") == 0)
+            _glfw.vk.MVK_macos_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_EXT_metal_surface") == 0)
+            _glfw.vk.EXT_metal_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_KHR_xlib_surface") == 0)
+            _glfw.vk.KHR_xlib_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_KHR_xcb_surface") == 0)
+            _glfw.vk.KHR_xcb_surface = GLFW_TRUE;
+        else if (strcmp(ep[i].extensionName, "VK_KHR_wayland_surface") == 0)
+            _glfw.vk.KHR_wayland_surface = GLFW_TRUE;
+    }
+
+    _glfw_free(ep);
+
+    _glfw.vk.available = GLFW_TRUE;
+
+    _glfw.platform.getRequiredInstanceExtensions(_glfw.vk.extensions);
+
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateVulkan(void)
+{
+    if (_glfw.vk.handle)
+        _glfwPlatformFreeModule(_glfw.vk.handle);
+}
+
+const char* _glfwGetVulkanResultString(VkResult result)
+{
+    switch (result)
+    {
+        case VK_SUCCESS:
+            return "Success";
+        case VK_NOT_READY:
+            return "A fence or query has not yet completed";
+        case VK_TIMEOUT:
+            return "A wait operation has not completed in the specified time";
+        case VK_EVENT_SET:
+            return "An event is signaled";
+        case VK_EVENT_RESET:
+            return "An event is unsignaled";
+        case VK_INCOMPLETE:
+            return "A return array was too small for the result";
+        case VK_ERROR_OUT_OF_HOST_MEMORY:
+            return "A host memory allocation has failed";
+        case VK_ERROR_OUT_OF_DEVICE_MEMORY:
+            return "A device memory allocation has failed";
+        case VK_ERROR_INITIALIZATION_FAILED:
+            return "Initialization of an object could not be completed for implementation-specific reasons";
+        case VK_ERROR_DEVICE_LOST:
+            return "The logical or physical device has been lost";
+        case VK_ERROR_MEMORY_MAP_FAILED:
+            return "Mapping of a memory object has failed";
+        case VK_ERROR_LAYER_NOT_PRESENT:
+            return "A requested layer is not present or could not be loaded";
+        case VK_ERROR_EXTENSION_NOT_PRESENT:
+            return "A requested extension is not supported";
+        case VK_ERROR_FEATURE_NOT_PRESENT:
+            return "A requested feature is not supported";
+        case VK_ERROR_INCOMPATIBLE_DRIVER:
+            return "The requested version of Vulkan is not supported by the driver or is otherwise incompatible";
+        case VK_ERROR_TOO_MANY_OBJECTS:
+            return "Too many objects of the type have already been created";
+        case VK_ERROR_FORMAT_NOT_SUPPORTED:
+            return "A requested format is not supported on this device";
+        case VK_ERROR_SURFACE_LOST_KHR:
+            return "A surface is no longer available";
+        case VK_SUBOPTIMAL_KHR:
+            return "A swapchain no longer matches the surface properties exactly, but can still be used";
+        case VK_ERROR_OUT_OF_DATE_KHR:
+            return "A surface has changed in such a way that it is no longer compatible with the swapchain";
+        case VK_ERROR_INCOMPATIBLE_DISPLAY_KHR:
+            return "The display used by a swapchain does not use the same presentable image layout";
+        case VK_ERROR_NATIVE_WINDOW_IN_USE_KHR:
+            return "The requested window is already connected to a VkSurfaceKHR, or to some other non-Vulkan API";
+        case VK_ERROR_VALIDATION_FAILED_EXT:
+            return "A validation layer found an error";
+        default:
+            return "ERROR: UNKNOWN VULKAN ERROR";
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW public API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI int glfwVulkanSupported(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+    return _glfwInitVulkan(_GLFW_FIND_LOADER);
+}
+
+GLFWAPI const char** glfwGetRequiredInstanceExtensions(uint32_t* count)
+{
+    assert(count != NULL);
+
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
+        return NULL;
+
+    if (!_glfw.vk.extensions[0])
+        return NULL;
+
+    *count = 2;
+    return (const char**) _glfw.vk.extensions;
+}
+
+GLFWAPI GLFWvkproc glfwGetInstanceProcAddress(VkInstance instance,
+                                              const char* procname)
+{
+    GLFWvkproc proc;
+    assert(procname != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
+        return NULL;
+
+    // NOTE: Vulkan 1.0 and 1.1 vkGetInstanceProcAddr cannot return itself
+    if (strcmp(procname, "vkGetInstanceProcAddr") == 0)
+        return (GLFWvkproc) vkGetInstanceProcAddr;
+
+    proc = (GLFWvkproc) vkGetInstanceProcAddr(instance, procname);
+    if (!proc)
+    {
+        if (_glfw.vk.handle)
+            proc = (GLFWvkproc) _glfwPlatformGetModuleSymbol(_glfw.vk.handle, procname);
+    }
+
+    return proc;
+}
+
+GLFWAPI int glfwGetPhysicalDevicePresentationSupport(VkInstance instance,
+                                                     VkPhysicalDevice device,
+                                                     uint32_t queuefamily)
+{
+    assert(instance != VK_NULL_HANDLE);
+    assert(device != VK_NULL_HANDLE);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
+
+    if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
+        return GLFW_FALSE;
+
+    if (!_glfw.vk.extensions[0])
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Vulkan: Window surface creation extensions not found");
+        return GLFW_FALSE;
+    }
+
+    return _glfw.platform.getPhysicalDevicePresentationSupport(instance,
+                                                               device,
+                                                               queuefamily);
+}
+
+GLFWAPI VkResult glfwCreateWindowSurface(VkInstance instance,
+                                         GLFWwindow* handle,
+                                         const VkAllocationCallbacks* allocator,
+                                         VkSurfaceKHR* surface)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(instance != VK_NULL_HANDLE);
+    assert(window != NULL);
+    assert(surface != NULL);
+
+    *surface = VK_NULL_HANDLE;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(VK_ERROR_INITIALIZATION_FAILED);
+
+    if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
+        return VK_ERROR_INITIALIZATION_FAILED;
+
+    if (!_glfw.vk.extensions[0])
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "Vulkan: Window surface creation extensions not found");
+        return VK_ERROR_EXTENSION_NOT_PRESENT;
+    }
+
+    if (window->context.client != GLFW_NO_API)
+    {
+        _glfwInputError(GLFW_INVALID_VALUE,
+                        "Vulkan: Window surface creation requires the window to have the client API set to GLFW_NO_API");
+        return VK_ERROR_NATIVE_WINDOW_IN_USE_KHR;
+    }
+
+    return _glfw.platform.createWindowSurface(instance, window, allocator, surface);
+}
+

raylib/external/glfw/src/wgl_context.c

@@ -0,0 +1,798 @@
+//========================================================================
+// GLFW 3.4 WGL - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WIN32)
+
+#include <stdlib.h>
+#include <assert.h>
+
+// Return the value corresponding to the specified attribute
+//
+static int findPixelFormatAttribValueWGL(const int* attribs,
+                                         int attribCount,
+                                         const int* values,
+                                         int attrib)
+{
+    int i;
+
+    for (i = 0;  i < attribCount;  i++)
+    {
+        if (attribs[i] == attrib)
+            return values[i];
+    }
+
+    _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                         "WGL: Unknown pixel format attribute requested");
+    return 0;
+}
+
+#define ADD_ATTRIB(a) \
+{ \
+    assert((size_t) attribCount < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[attribCount++] = a; \
+}
+#define FIND_ATTRIB_VALUE(a) \
+    findPixelFormatAttribValueWGL(attribs, attribCount, values, a)
+
+// Return a list of available and usable framebuffer configs
+//
+static int choosePixelFormatWGL(_GLFWwindow* window,
+                                const _GLFWctxconfig* ctxconfig,
+                                const _GLFWfbconfig* fbconfig)
+{
+    _GLFWfbconfig* usableConfigs;
+    const _GLFWfbconfig* closest;
+    int i, pixelFormat, nativeCount, usableCount = 0, attribCount = 0;
+    int attribs[40];
+    int values[sizeof(attribs) / sizeof(attribs[0])];
+
+    nativeCount = DescribePixelFormat(window->context.wgl.dc,
+                                      1,
+                                      sizeof(PIXELFORMATDESCRIPTOR),
+                                      NULL);
+
+    if (_glfw.wgl.ARB_pixel_format)
+    {
+        ADD_ATTRIB(WGL_SUPPORT_OPENGL_ARB);
+        ADD_ATTRIB(WGL_DRAW_TO_WINDOW_ARB);
+        ADD_ATTRIB(WGL_PIXEL_TYPE_ARB);
+        ADD_ATTRIB(WGL_ACCELERATION_ARB);
+        ADD_ATTRIB(WGL_RED_BITS_ARB);
+        ADD_ATTRIB(WGL_RED_SHIFT_ARB);
+        ADD_ATTRIB(WGL_GREEN_BITS_ARB);
+        ADD_ATTRIB(WGL_GREEN_SHIFT_ARB);
+        ADD_ATTRIB(WGL_BLUE_BITS_ARB);
+        ADD_ATTRIB(WGL_BLUE_SHIFT_ARB);
+        ADD_ATTRIB(WGL_ALPHA_BITS_ARB);
+        ADD_ATTRIB(WGL_ALPHA_SHIFT_ARB);
+        ADD_ATTRIB(WGL_DEPTH_BITS_ARB);
+        ADD_ATTRIB(WGL_STENCIL_BITS_ARB);
+        ADD_ATTRIB(WGL_ACCUM_BITS_ARB);
+        ADD_ATTRIB(WGL_ACCUM_RED_BITS_ARB);
+        ADD_ATTRIB(WGL_ACCUM_GREEN_BITS_ARB);
+        ADD_ATTRIB(WGL_ACCUM_BLUE_BITS_ARB);
+        ADD_ATTRIB(WGL_ACCUM_ALPHA_BITS_ARB);
+        ADD_ATTRIB(WGL_AUX_BUFFERS_ARB);
+        ADD_ATTRIB(WGL_STEREO_ARB);
+        ADD_ATTRIB(WGL_DOUBLE_BUFFER_ARB);
+
+        if (_glfw.wgl.ARB_multisample)
+            ADD_ATTRIB(WGL_SAMPLES_ARB);
+
+        if (ctxconfig->client == GLFW_OPENGL_API)
+        {
+            if (_glfw.wgl.ARB_framebuffer_sRGB || _glfw.wgl.EXT_framebuffer_sRGB)
+                ADD_ATTRIB(WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB);
+        }
+        else
+        {
+            if (_glfw.wgl.EXT_colorspace)
+                ADD_ATTRIB(WGL_COLORSPACE_EXT);
+        }
+
+        // NOTE: In a Parallels VM WGL_ARB_pixel_format returns fewer pixel formats than
+        //       DescribePixelFormat, violating the guarantees of the extension spec
+        // HACK: Iterate through the minimum of both counts
+
+        const int attrib = WGL_NUMBER_PIXEL_FORMATS_ARB;
+        int extensionCount;
+
+        if (!wglGetPixelFormatAttribivARB(window->context.wgl.dc,
+                                          1, 0, 1, &attrib, &extensionCount))
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "WGL: Failed to retrieve pixel format attribute");
+            return 0;
+        }
+
+        nativeCount = _glfw_min(nativeCount, extensionCount);
+    }
+
+    usableConfigs = _glfw_calloc(nativeCount, sizeof(_GLFWfbconfig));
+
+    for (i = 0;  i < nativeCount;  i++)
+    {
+        _GLFWfbconfig* u = usableConfigs + usableCount;
+        pixelFormat = i + 1;
+
+        if (_glfw.wgl.ARB_pixel_format)
+        {
+            // Get pixel format attributes through "modern" extension
+
+            if (!wglGetPixelFormatAttribivARB(window->context.wgl.dc,
+                                              pixelFormat, 0,
+                                              attribCount,
+                                              attribs, values))
+            {
+                _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                    "WGL: Failed to retrieve pixel format attributes");
+
+                _glfw_free(usableConfigs);
+                return 0;
+            }
+
+            if (!FIND_ATTRIB_VALUE(WGL_SUPPORT_OPENGL_ARB) ||
+                !FIND_ATTRIB_VALUE(WGL_DRAW_TO_WINDOW_ARB))
+            {
+                continue;
+            }
+
+            if (FIND_ATTRIB_VALUE(WGL_PIXEL_TYPE_ARB) != WGL_TYPE_RGBA_ARB)
+                continue;
+
+            if (FIND_ATTRIB_VALUE(WGL_ACCELERATION_ARB) == WGL_NO_ACCELERATION_ARB)
+                continue;
+
+            if (FIND_ATTRIB_VALUE(WGL_DOUBLE_BUFFER_ARB) != fbconfig->doublebuffer)
+                continue;
+
+            u->redBits = FIND_ATTRIB_VALUE(WGL_RED_BITS_ARB);
+            u->greenBits = FIND_ATTRIB_VALUE(WGL_GREEN_BITS_ARB);
+            u->blueBits = FIND_ATTRIB_VALUE(WGL_BLUE_BITS_ARB);
+            u->alphaBits = FIND_ATTRIB_VALUE(WGL_ALPHA_BITS_ARB);
+
+            u->depthBits = FIND_ATTRIB_VALUE(WGL_DEPTH_BITS_ARB);
+            u->stencilBits = FIND_ATTRIB_VALUE(WGL_STENCIL_BITS_ARB);
+
+            u->accumRedBits = FIND_ATTRIB_VALUE(WGL_ACCUM_RED_BITS_ARB);
+            u->accumGreenBits = FIND_ATTRIB_VALUE(WGL_ACCUM_GREEN_BITS_ARB);
+            u->accumBlueBits = FIND_ATTRIB_VALUE(WGL_ACCUM_BLUE_BITS_ARB);
+            u->accumAlphaBits = FIND_ATTRIB_VALUE(WGL_ACCUM_ALPHA_BITS_ARB);
+
+            u->auxBuffers = FIND_ATTRIB_VALUE(WGL_AUX_BUFFERS_ARB);
+
+            if (FIND_ATTRIB_VALUE(WGL_STEREO_ARB))
+                u->stereo = GLFW_TRUE;
+
+            if (_glfw.wgl.ARB_multisample)
+                u->samples = FIND_ATTRIB_VALUE(WGL_SAMPLES_ARB);
+
+            if (ctxconfig->client == GLFW_OPENGL_API)
+            {
+                if (_glfw.wgl.ARB_framebuffer_sRGB ||
+                    _glfw.wgl.EXT_framebuffer_sRGB)
+                {
+                    if (FIND_ATTRIB_VALUE(WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB))
+                        u->sRGB = GLFW_TRUE;
+                }
+            }
+            else
+            {
+                if (_glfw.wgl.EXT_colorspace)
+                {
+                    if (FIND_ATTRIB_VALUE(WGL_COLORSPACE_EXT) == WGL_COLORSPACE_SRGB_EXT)
+                        u->sRGB = GLFW_TRUE;
+                }
+            }
+        }
+        else
+        {
+            // Get pixel format attributes through legacy PFDs
+
+            PIXELFORMATDESCRIPTOR pfd;
+
+            if (!DescribePixelFormat(window->context.wgl.dc,
+                                     pixelFormat,
+                                     sizeof(PIXELFORMATDESCRIPTOR),
+                                     &pfd))
+            {
+                _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                    "WGL: Failed to describe pixel format");
+
+                _glfw_free(usableConfigs);
+                return 0;
+            }
+
+            if (!(pfd.dwFlags & PFD_DRAW_TO_WINDOW) ||
+                !(pfd.dwFlags & PFD_SUPPORT_OPENGL))
+            {
+                continue;
+            }
+
+            if (!(pfd.dwFlags & PFD_GENERIC_ACCELERATED) &&
+                (pfd.dwFlags & PFD_GENERIC_FORMAT))
+            {
+                continue;
+            }
+
+            if (pfd.iPixelType != PFD_TYPE_RGBA)
+                continue;
+
+            if (!!(pfd.dwFlags & PFD_DOUBLEBUFFER) != fbconfig->doublebuffer)
+                continue;
+
+            u->redBits = pfd.cRedBits;
+            u->greenBits = pfd.cGreenBits;
+            u->blueBits = pfd.cBlueBits;
+            u->alphaBits = pfd.cAlphaBits;
+
+            u->depthBits = pfd.cDepthBits;
+            u->stencilBits = pfd.cStencilBits;
+
+            u->accumRedBits = pfd.cAccumRedBits;
+            u->accumGreenBits = pfd.cAccumGreenBits;
+            u->accumBlueBits = pfd.cAccumBlueBits;
+            u->accumAlphaBits = pfd.cAccumAlphaBits;
+
+            u->auxBuffers = pfd.cAuxBuffers;
+
+            if (pfd.dwFlags & PFD_STEREO)
+                u->stereo = GLFW_TRUE;
+        }
+
+        u->handle = pixelFormat;
+        usableCount++;
+    }
+
+    if (!usableCount)
+    {
+        _glfwInputError(GLFW_API_UNAVAILABLE,
+                        "WGL: The driver does not appear to support OpenGL");
+
+        _glfw_free(usableConfigs);
+        return 0;
+    }
+
+    closest = _glfwChooseFBConfig(fbconfig, usableConfigs, usableCount);
+    if (!closest)
+    {
+        _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
+                        "WGL: Failed to find a suitable pixel format");
+
+        _glfw_free(usableConfigs);
+        return 0;
+    }
+
+    pixelFormat = (int) closest->handle;
+    _glfw_free(usableConfigs);
+
+    return pixelFormat;
+}
+
+#undef ADD_ATTRIB
+#undef FIND_ATTRIB_VALUE
+
+static void makeContextCurrentWGL(_GLFWwindow* window)
+{
+    if (window)
+    {
+        if (wglMakeCurrent(window->context.wgl.dc, window->context.wgl.handle))
+            _glfwPlatformSetTls(&_glfw.contextSlot, window);
+        else
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "WGL: Failed to make context current");
+            _glfwPlatformSetTls(&_glfw.contextSlot, NULL);
+        }
+    }
+    else
+    {
+        if (!wglMakeCurrent(NULL, NULL))
+        {
+            _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                 "WGL: Failed to clear current context");
+        }
+
+        _glfwPlatformSetTls(&_glfw.contextSlot, NULL);
+    }
+}
+
+static void swapBuffersWGL(_GLFWwindow* window)
+{
+    if (!window->monitor)
+    {
+        // HACK: Use DwmFlush when desktop composition is enabled on Windows Vista and 7
+        if (!IsWindows8OrGreater() && IsWindowsVistaOrGreater())
+        {
+            BOOL enabled = FALSE;
+
+            if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled)
+            {
+                int count = abs(window->context.wgl.interval);
+                while (count--)
+                    DwmFlush();
+            }
+        }
+    }
+
+    SwapBuffers(window->context.wgl.dc);
+}
+
+static void swapIntervalWGL(int interval)
+{
+    _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
+    assert(window != NULL);
+
+    window->context.wgl.interval = interval;
+
+    if (!window->monitor)
+    {
+        // HACK: Disable WGL swap interval when desktop composition is enabled on Windows
+        //       Vista and 7 to avoid interfering with DWM vsync
+        if (!IsWindows8OrGreater() && IsWindowsVistaOrGreater())
+        {
+            BOOL enabled = FALSE;
+
+            if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled)
+                interval = 0;
+        }
+    }
+
+    if (_glfw.wgl.EXT_swap_control)
+        wglSwapIntervalEXT(interval);
+}
+
+static int extensionSupportedWGL(const char* extension)
+{
+    const char* extensions = NULL;
+
+    if (_glfw.wgl.GetExtensionsStringARB)
+        extensions = wglGetExtensionsStringARB(wglGetCurrentDC());
+    else if (_glfw.wgl.GetExtensionsStringEXT)
+        extensions = wglGetExtensionsStringEXT();
+
+    if (!extensions)
+        return GLFW_FALSE;
+
+    return _glfwStringInExtensionString(extension, extensions);
+}
+
+static GLFWglproc getProcAddressWGL(const char* procname)
+{
+    const GLFWglproc proc = (GLFWglproc) wglGetProcAddress(procname);
+    if (proc)
+        return proc;
+
+    return (GLFWglproc) _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, procname);
+}
+
+static void destroyContextWGL(_GLFWwindow* window)
+{
+    if (window->context.wgl.handle)
+    {
+        wglDeleteContext(window->context.wgl.handle);
+        window->context.wgl.handle = NULL;
+    }
+}
+
+// Initialize WGL
+//
+GLFWbool _glfwInitWGL(void)
+{
+    PIXELFORMATDESCRIPTOR pfd;
+    HGLRC prc, rc;
+    HDC pdc, dc;
+
+    if (_glfw.wgl.instance)
+        return GLFW_TRUE;
+
+    _glfw.wgl.instance = _glfwPlatformLoadModule("opengl32.dll");
+    if (!_glfw.wgl.instance)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to load opengl32.dll");
+        return GLFW_FALSE;
+    }
+
+    _glfw.wgl.CreateContext = (PFN_wglCreateContext)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglCreateContext");
+    _glfw.wgl.DeleteContext = (PFN_wglDeleteContext)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglDeleteContext");
+    _glfw.wgl.GetProcAddress = (PFN_wglGetProcAddress)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglGetProcAddress");
+    _glfw.wgl.GetCurrentDC = (PFN_wglGetCurrentDC)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglGetCurrentDC");
+    _glfw.wgl.GetCurrentContext = (PFN_wglGetCurrentContext)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglGetCurrentContext");
+    _glfw.wgl.MakeCurrent = (PFN_wglMakeCurrent)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglMakeCurrent");
+    _glfw.wgl.ShareLists = (PFN_wglShareLists)
+        _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglShareLists");
+
+    // NOTE: A dummy context has to be created for opengl32.dll to load the
+    //       OpenGL ICD, from which we can then query WGL extensions
+    // NOTE: This code will accept the Microsoft GDI ICD; accelerated context
+    //       creation failure occurs during manual pixel format enumeration
+
+    dc = GetDC(_glfw.win32.helperWindowHandle);
+
+    ZeroMemory(&pfd, sizeof(pfd));
+    pfd.nSize = sizeof(pfd);
+    pfd.nVersion = 1;
+    pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
+    pfd.iPixelType = PFD_TYPE_RGBA;
+    pfd.cColorBits = 24;
+
+    if (!SetPixelFormat(dc, ChoosePixelFormat(dc, &pfd), &pfd))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to set pixel format for dummy context");
+        return GLFW_FALSE;
+    }
+
+    rc = wglCreateContext(dc);
+    if (!rc)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to create dummy context");
+        return GLFW_FALSE;
+    }
+
+    pdc = wglGetCurrentDC();
+    prc = wglGetCurrentContext();
+
+    if (!wglMakeCurrent(dc, rc))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to make dummy context current");
+        wglMakeCurrent(pdc, prc);
+        wglDeleteContext(rc);
+        return GLFW_FALSE;
+    }
+
+    // NOTE: Functions must be loaded first as they're needed to retrieve the
+    //       extension string that tells us whether the functions are supported
+    _glfw.wgl.GetExtensionsStringEXT = (PFNWGLGETEXTENSIONSSTRINGEXTPROC)
+        wglGetProcAddress("wglGetExtensionsStringEXT");
+    _glfw.wgl.GetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)
+        wglGetProcAddress("wglGetExtensionsStringARB");
+    _glfw.wgl.CreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)
+        wglGetProcAddress("wglCreateContextAttribsARB");
+    _glfw.wgl.SwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)
+        wglGetProcAddress("wglSwapIntervalEXT");
+    _glfw.wgl.GetPixelFormatAttribivARB = (PFNWGLGETPIXELFORMATATTRIBIVARBPROC)
+        wglGetProcAddress("wglGetPixelFormatAttribivARB");
+
+    // NOTE: WGL_ARB_extensions_string and WGL_EXT_extensions_string are not
+    //       checked below as we are already using them
+    _glfw.wgl.ARB_multisample =
+        extensionSupportedWGL("WGL_ARB_multisample");
+    _glfw.wgl.ARB_framebuffer_sRGB =
+        extensionSupportedWGL("WGL_ARB_framebuffer_sRGB");
+    _glfw.wgl.EXT_framebuffer_sRGB =
+        extensionSupportedWGL("WGL_EXT_framebuffer_sRGB");
+    _glfw.wgl.ARB_create_context =
+        extensionSupportedWGL("WGL_ARB_create_context");
+    _glfw.wgl.ARB_create_context_profile =
+        extensionSupportedWGL("WGL_ARB_create_context_profile");
+    _glfw.wgl.EXT_create_context_es2_profile =
+        extensionSupportedWGL("WGL_EXT_create_context_es2_profile");
+    _glfw.wgl.ARB_create_context_robustness =
+        extensionSupportedWGL("WGL_ARB_create_context_robustness");
+    _glfw.wgl.ARB_create_context_no_error =
+        extensionSupportedWGL("WGL_ARB_create_context_no_error");
+    _glfw.wgl.EXT_swap_control =
+        extensionSupportedWGL("WGL_EXT_swap_control");
+    _glfw.wgl.EXT_colorspace =
+        extensionSupportedWGL("WGL_EXT_colorspace");
+    _glfw.wgl.ARB_pixel_format =
+        extensionSupportedWGL("WGL_ARB_pixel_format");
+    _glfw.wgl.ARB_context_flush_control =
+        extensionSupportedWGL("WGL_ARB_context_flush_control");
+
+    wglMakeCurrent(pdc, prc);
+    wglDeleteContext(rc);
+    return GLFW_TRUE;
+}
+
+// Terminate WGL
+//
+void _glfwTerminateWGL(void)
+{
+    if (_glfw.wgl.instance)
+        _glfwPlatformFreeModule(_glfw.wgl.instance);
+}
+
+#define SET_ATTRIB(a, v) \
+{ \
+    assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
+    attribs[index++] = a; \
+    attribs[index++] = v; \
+}
+
+// Create the OpenGL or OpenGL ES context
+//
+GLFWbool _glfwCreateContextWGL(_GLFWwindow* window,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig)
+{
+    int attribs[40];
+    int pixelFormat;
+    PIXELFORMATDESCRIPTOR pfd;
+    HGLRC share = NULL;
+
+    if (ctxconfig->share)
+        share = ctxconfig->share->context.wgl.handle;
+
+    window->context.wgl.dc = GetDC(window->win32.handle);
+    if (!window->context.wgl.dc)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "WGL: Failed to retrieve DC for window");
+        return GLFW_FALSE;
+    }
+
+    pixelFormat = choosePixelFormatWGL(window, ctxconfig, fbconfig);
+    if (!pixelFormat)
+        return GLFW_FALSE;
+
+    if (!DescribePixelFormat(window->context.wgl.dc,
+                             pixelFormat, sizeof(pfd), &pfd))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to retrieve PFD for selected pixel format");
+        return GLFW_FALSE;
+    }
+
+    if (!SetPixelFormat(window->context.wgl.dc, pixelFormat, &pfd))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "WGL: Failed to set selected pixel format");
+        return GLFW_FALSE;
+    }
+
+    if (ctxconfig->client == GLFW_OPENGL_API)
+    {
+        if (ctxconfig->forward)
+        {
+            if (!_glfw.wgl.ARB_create_context)
+            {
+                _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                "WGL: A forward compatible OpenGL context requested but WGL_ARB_create_context is unavailable");
+                return GLFW_FALSE;
+            }
+        }
+
+        if (ctxconfig->profile)
+        {
+            if (!_glfw.wgl.ARB_create_context_profile)
+            {
+                _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                "WGL: OpenGL profile requested but WGL_ARB_create_context_profile is unavailable");
+                return GLFW_FALSE;
+            }
+        }
+    }
+    else
+    {
+        if (!_glfw.wgl.ARB_create_context ||
+            !_glfw.wgl.ARB_create_context_profile ||
+            !_glfw.wgl.EXT_create_context_es2_profile)
+        {
+            _glfwInputError(GLFW_API_UNAVAILABLE,
+                            "WGL: OpenGL ES requested but WGL_ARB_create_context_es2_profile is unavailable");
+            return GLFW_FALSE;
+        }
+    }
+
+    if (_glfw.wgl.ARB_create_context)
+    {
+        int index = 0, mask = 0, flags = 0;
+
+        if (ctxconfig->client == GLFW_OPENGL_API)
+        {
+            if (ctxconfig->forward)
+                flags |= WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
+
+            if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
+                mask |= WGL_CONTEXT_CORE_PROFILE_BIT_ARB;
+            else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
+                mask |= WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
+        }
+        else
+            mask |= WGL_CONTEXT_ES2_PROFILE_BIT_EXT;
+
+        if (ctxconfig->debug)
+            flags |= WGL_CONTEXT_DEBUG_BIT_ARB;
+
+        if (ctxconfig->robustness)
+        {
+            if (_glfw.wgl.ARB_create_context_robustness)
+            {
+                if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
+                {
+                    SET_ATTRIB(WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
+                               WGL_NO_RESET_NOTIFICATION_ARB);
+                }
+                else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
+                {
+                    SET_ATTRIB(WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
+                               WGL_LOSE_CONTEXT_ON_RESET_ARB);
+                }
+
+                flags |= WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB;
+            }
+        }
+
+        if (ctxconfig->release)
+        {
+            if (_glfw.wgl.ARB_context_flush_control)
+            {
+                if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
+                {
+                    SET_ATTRIB(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB,
+                               WGL_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB);
+                }
+                else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
+                {
+                    SET_ATTRIB(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB,
+                               WGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB);
+                }
+            }
+        }
+
+        if (ctxconfig->noerror)
+        {
+            if (_glfw.wgl.ARB_create_context_no_error)
+                SET_ATTRIB(WGL_CONTEXT_OPENGL_NO_ERROR_ARB, GLFW_TRUE);
+        }
+
+        // NOTE: Only request an explicitly versioned context when necessary, as
+        //       explicitly requesting version 1.0 does not always return the
+        //       highest version supported by the driver
+        if (ctxconfig->major != 1 || ctxconfig->minor != 0)
+        {
+            SET_ATTRIB(WGL_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major);
+            SET_ATTRIB(WGL_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor);
+        }
+
+        if (flags)
+            SET_ATTRIB(WGL_CONTEXT_FLAGS_ARB, flags);
+
+        if (mask)
+            SET_ATTRIB(WGL_CONTEXT_PROFILE_MASK_ARB, mask);
+
+        SET_ATTRIB(0, 0);
+
+        window->context.wgl.handle =
+            wglCreateContextAttribsARB(window->context.wgl.dc, share, attribs);
+        if (!window->context.wgl.handle)
+        {
+            const DWORD error = GetLastError();
+
+            if (error == (0xc0070000 | ERROR_INVALID_VERSION_ARB))
+            {
+                if (ctxconfig->client == GLFW_OPENGL_API)
+                {
+                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                    "WGL: Driver does not support OpenGL version %i.%i",
+                                    ctxconfig->major,
+                                    ctxconfig->minor);
+                }
+                else
+                {
+                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                    "WGL: Driver does not support OpenGL ES version %i.%i",
+                                    ctxconfig->major,
+                                    ctxconfig->minor);
+                }
+            }
+            else if (error == (0xc0070000 | ERROR_INVALID_PROFILE_ARB))
+            {
+                _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                "WGL: Driver does not support the requested OpenGL profile");
+            }
+            else if (error == (0xc0070000 | ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB))
+            {
+                _glfwInputError(GLFW_INVALID_VALUE,
+                                "WGL: The share context is not compatible with the requested context");
+            }
+            else
+            {
+                if (ctxconfig->client == GLFW_OPENGL_API)
+                {
+                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                    "WGL: Failed to create OpenGL context");
+                }
+                else
+                {
+                    _glfwInputError(GLFW_VERSION_UNAVAILABLE,
+                                    "WGL: Failed to create OpenGL ES context");
+                }
+            }
+
+            return GLFW_FALSE;
+        }
+    }
+    else
+    {
+        window->context.wgl.handle = wglCreateContext(window->context.wgl.dc);
+        if (!window->context.wgl.handle)
+        {
+            _glfwInputErrorWin32(GLFW_VERSION_UNAVAILABLE,
+                                 "WGL: Failed to create OpenGL context");
+            return GLFW_FALSE;
+        }
+
+        if (share)
+        {
+            if (!wglShareLists(share, window->context.wgl.handle))
+            {
+                _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                                     "WGL: Failed to enable sharing with specified OpenGL context");
+                return GLFW_FALSE;
+            }
+        }
+    }
+
+    window->context.makeCurrent = makeContextCurrentWGL;
+    window->context.swapBuffers = swapBuffersWGL;
+    window->context.swapInterval = swapIntervalWGL;
+    window->context.extensionSupported = extensionSupportedWGL;
+    window->context.getProcAddress = getProcAddressWGL;
+    window->context.destroy = destroyContextWGL;
+
+    return GLFW_TRUE;
+}
+
+#undef SET_ATTRIB
+
+GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WIN32)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE,
+                        "WGL: Platform not initialized");
+        return NULL;
+    }
+
+    if (window->context.source != GLFW_NATIVE_CONTEXT_API)
+    {
+        _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
+        return NULL;
+    }
+
+    return window->context.wgl.handle;
+}
+
+#endif // _GLFW_WIN32
+

raylib/external/glfw/src/win32_init.c

@@ -0,0 +1,732 @@
+//========================================================================
+// GLFW 3.4 Win32 (modified for raylib) - www.glfw.org; www.raylib.com
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+// Copyright (c) 2024 M374LX <wilsalx@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WIN32)
+
+#include <stdlib.h>
+
+static const GUID _glfw_GUID_DEVINTERFACE_HID =
+    {0x4d1e55b2,0xf16f,0x11cf,{0x88,0xcb,0x00,0x11,0x11,0x00,0x00,0x30}};
+
+#define GUID_DEVINTERFACE_HID _glfw_GUID_DEVINTERFACE_HID
+
+#if defined(_GLFW_USE_HYBRID_HPG) || defined(_GLFW_USE_OPTIMUS_HPG)
+
+#if defined(_GLFW_BUILD_DLL)
+ #pragma message("These symbols must be exported by the executable and have no effect in a DLL")
+#endif
+
+// Executables (but not DLLs) exporting this symbol with this value will be
+// automatically directed to the high-performance GPU on Nvidia Optimus systems
+// with up-to-date drivers
+//
+__declspec(dllexport) DWORD NvOptimusEnablement = 1;
+
+// Executables (but not DLLs) exporting this symbol with this value will be
+// automatically directed to the high-performance GPU on AMD PowerXpress systems
+// with up-to-date drivers
+//
+__declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
+
+#endif // _GLFW_USE_HYBRID_HPG
+
+#if defined(_GLFW_BUILD_DLL)
+
+// GLFW DLL entry point
+//
+BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
+{
+    return TRUE;
+}
+
+#endif // _GLFW_BUILD_DLL
+
+// Load necessary libraries (DLLs)
+//
+static GLFWbool loadLibraries(void)
+{
+    if (!GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS |
+                                GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
+                            (const WCHAR*) &_glfw,
+                            (HMODULE*) &_glfw.win32.instance))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to retrieve own module handle");
+        return GLFW_FALSE;
+    }
+
+    _glfw.win32.user32.instance = _glfwPlatformLoadModule("user32.dll");
+    if (!_glfw.win32.user32.instance)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to load user32.dll");
+        return GLFW_FALSE;
+    }
+
+    _glfw.win32.user32.SetProcessDPIAware_ = (PFN_SetProcessDPIAware)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "SetProcessDPIAware");
+    _glfw.win32.user32.ChangeWindowMessageFilterEx_ = (PFN_ChangeWindowMessageFilterEx)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "ChangeWindowMessageFilterEx");
+    _glfw.win32.user32.EnableNonClientDpiScaling_ = (PFN_EnableNonClientDpiScaling)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "EnableNonClientDpiScaling");
+    _glfw.win32.user32.SetProcessDpiAwarenessContext_ = (PFN_SetProcessDpiAwarenessContext)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "SetProcessDpiAwarenessContext");
+    _glfw.win32.user32.GetDpiForWindow_ = (PFN_GetDpiForWindow)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "GetDpiForWindow");
+    _glfw.win32.user32.AdjustWindowRectExForDpi_ = (PFN_AdjustWindowRectExForDpi)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "AdjustWindowRectExForDpi");
+    _glfw.win32.user32.GetSystemMetricsForDpi_ = (PFN_GetSystemMetricsForDpi)
+        _glfwPlatformGetModuleSymbol(_glfw.win32.user32.instance, "GetSystemMetricsForDpi");
+
+    _glfw.win32.dinput8.instance = _glfwPlatformLoadModule("dinput8.dll");
+    if (_glfw.win32.dinput8.instance)
+    {
+        _glfw.win32.dinput8.Create = (PFN_DirectInput8Create)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dinput8.instance, "DirectInput8Create");
+    }
+
+    {
+        int i;
+        const char* names[] =
+        {
+            "xinput1_4.dll",
+            "xinput1_3.dll",
+            "xinput9_1_0.dll",
+            "xinput1_2.dll",
+            "xinput1_1.dll",
+            NULL
+        };
+
+        for (i = 0;  names[i];  i++)
+        {
+            _glfw.win32.xinput.instance = _glfwPlatformLoadModule(names[i]);
+            if (_glfw.win32.xinput.instance)
+            {
+                _glfw.win32.xinput.GetCapabilities = (PFN_XInputGetCapabilities)
+                    _glfwPlatformGetModuleSymbol(_glfw.win32.xinput.instance, "XInputGetCapabilities");
+                _glfw.win32.xinput.GetState = (PFN_XInputGetState)
+                    _glfwPlatformGetModuleSymbol(_glfw.win32.xinput.instance, "XInputGetState");
+
+                break;
+            }
+        }
+    }
+
+    _glfw.win32.dwmapi.instance = _glfwPlatformLoadModule("dwmapi.dll");
+    if (_glfw.win32.dwmapi.instance)
+    {
+        _glfw.win32.dwmapi.IsCompositionEnabled = (PFN_DwmIsCompositionEnabled)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmIsCompositionEnabled");
+        _glfw.win32.dwmapi.Flush = (PFN_DwmFlush)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmFlush");
+        _glfw.win32.dwmapi.EnableBlurBehindWindow = (PFN_DwmEnableBlurBehindWindow)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmEnableBlurBehindWindow");
+        _glfw.win32.dwmapi.GetColorizationColor = (PFN_DwmGetColorizationColor)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmGetColorizationColor");
+    }
+
+    _glfw.win32.shcore.instance = _glfwPlatformLoadModule("shcore.dll");
+    if (_glfw.win32.shcore.instance)
+    {
+        _glfw.win32.shcore.SetProcessDpiAwareness_ = (PFN_SetProcessDpiAwareness)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.shcore.instance, "SetProcessDpiAwareness");
+        _glfw.win32.shcore.GetDpiForMonitor_ = (PFN_GetDpiForMonitor)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.shcore.instance, "GetDpiForMonitor");
+    }
+
+    _glfw.win32.ntdll.instance = _glfwPlatformLoadModule("ntdll.dll");
+    if (_glfw.win32.ntdll.instance)
+    {
+        _glfw.win32.ntdll.RtlVerifyVersionInfo_ = (PFN_RtlVerifyVersionInfo)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.ntdll.instance, "RtlVerifyVersionInfo");
+    }
+
+    return GLFW_TRUE;
+}
+
+// Unload used libraries (DLLs)
+//
+static void freeLibraries(void)
+{
+    if (_glfw.win32.xinput.instance)
+        _glfwPlatformFreeModule(_glfw.win32.xinput.instance);
+
+    if (_glfw.win32.dinput8.instance)
+        _glfwPlatformFreeModule(_glfw.win32.dinput8.instance);
+
+    if (_glfw.win32.user32.instance)
+        _glfwPlatformFreeModule(_glfw.win32.user32.instance);
+
+    if (_glfw.win32.dwmapi.instance)
+        _glfwPlatformFreeModule(_glfw.win32.dwmapi.instance);
+
+    if (_glfw.win32.shcore.instance)
+        _glfwPlatformFreeModule(_glfw.win32.shcore.instance);
+
+    if (_glfw.win32.ntdll.instance)
+        _glfwPlatformFreeModule(_glfw.win32.ntdll.instance);
+}
+
+// Create key code translation tables
+//
+static void createKeyTablesWin32(void)
+{
+    int scancode;
+
+    memset(_glfw.win32.keycodes, -1, sizeof(_glfw.win32.keycodes));
+    memset(_glfw.win32.scancodes, -1, sizeof(_glfw.win32.scancodes));
+
+    _glfw.win32.keycodes[0x00B] = GLFW_KEY_0;
+    _glfw.win32.keycodes[0x002] = GLFW_KEY_1;
+    _glfw.win32.keycodes[0x003] = GLFW_KEY_2;
+    _glfw.win32.keycodes[0x004] = GLFW_KEY_3;
+    _glfw.win32.keycodes[0x005] = GLFW_KEY_4;
+    _glfw.win32.keycodes[0x006] = GLFW_KEY_5;
+    _glfw.win32.keycodes[0x007] = GLFW_KEY_6;
+    _glfw.win32.keycodes[0x008] = GLFW_KEY_7;
+    _glfw.win32.keycodes[0x009] = GLFW_KEY_8;
+    _glfw.win32.keycodes[0x00A] = GLFW_KEY_9;
+    _glfw.win32.keycodes[0x01E] = GLFW_KEY_A;
+    _glfw.win32.keycodes[0x030] = GLFW_KEY_B;
+    _glfw.win32.keycodes[0x02E] = GLFW_KEY_C;
+    _glfw.win32.keycodes[0x020] = GLFW_KEY_D;
+    _glfw.win32.keycodes[0x012] = GLFW_KEY_E;
+    _glfw.win32.keycodes[0x021] = GLFW_KEY_F;
+    _glfw.win32.keycodes[0x022] = GLFW_KEY_G;
+    _glfw.win32.keycodes[0x023] = GLFW_KEY_H;
+    _glfw.win32.keycodes[0x017] = GLFW_KEY_I;
+    _glfw.win32.keycodes[0x024] = GLFW_KEY_J;
+    _glfw.win32.keycodes[0x025] = GLFW_KEY_K;
+    _glfw.win32.keycodes[0x026] = GLFW_KEY_L;
+    _glfw.win32.keycodes[0x032] = GLFW_KEY_M;
+    _glfw.win32.keycodes[0x031] = GLFW_KEY_N;
+    _glfw.win32.keycodes[0x018] = GLFW_KEY_O;
+    _glfw.win32.keycodes[0x019] = GLFW_KEY_P;
+    _glfw.win32.keycodes[0x010] = GLFW_KEY_Q;
+    _glfw.win32.keycodes[0x013] = GLFW_KEY_R;
+    _glfw.win32.keycodes[0x01F] = GLFW_KEY_S;
+    _glfw.win32.keycodes[0x014] = GLFW_KEY_T;
+    _glfw.win32.keycodes[0x016] = GLFW_KEY_U;
+    _glfw.win32.keycodes[0x02F] = GLFW_KEY_V;
+    _glfw.win32.keycodes[0x011] = GLFW_KEY_W;
+    _glfw.win32.keycodes[0x02D] = GLFW_KEY_X;
+    _glfw.win32.keycodes[0x015] = GLFW_KEY_Y;
+    _glfw.win32.keycodes[0x02C] = GLFW_KEY_Z;
+
+    _glfw.win32.keycodes[0x028] = GLFW_KEY_APOSTROPHE;
+    _glfw.win32.keycodes[0x02B] = GLFW_KEY_BACKSLASH;
+    _glfw.win32.keycodes[0x033] = GLFW_KEY_COMMA;
+    _glfw.win32.keycodes[0x00D] = GLFW_KEY_EQUAL;
+    _glfw.win32.keycodes[0x029] = GLFW_KEY_GRAVE_ACCENT;
+    _glfw.win32.keycodes[0x01A] = GLFW_KEY_LEFT_BRACKET;
+    _glfw.win32.keycodes[0x00C] = GLFW_KEY_MINUS;
+    _glfw.win32.keycodes[0x034] = GLFW_KEY_PERIOD;
+    _glfw.win32.keycodes[0x01B] = GLFW_KEY_RIGHT_BRACKET;
+    _glfw.win32.keycodes[0x027] = GLFW_KEY_SEMICOLON;
+    _glfw.win32.keycodes[0x035] = GLFW_KEY_SLASH;
+    _glfw.win32.keycodes[0x056] = GLFW_KEY_WORLD_2;
+
+    _glfw.win32.keycodes[0x00E] = GLFW_KEY_BACKSPACE;
+    _glfw.win32.keycodes[0x153] = GLFW_KEY_DELETE;
+    _glfw.win32.keycodes[0x14F] = GLFW_KEY_END;
+    _glfw.win32.keycodes[0x01C] = GLFW_KEY_ENTER;
+    _glfw.win32.keycodes[0x001] = GLFW_KEY_ESCAPE;
+    _glfw.win32.keycodes[0x147] = GLFW_KEY_HOME;
+    _glfw.win32.keycodes[0x152] = GLFW_KEY_INSERT;
+    _glfw.win32.keycodes[0x15D] = GLFW_KEY_MENU;
+    _glfw.win32.keycodes[0x151] = GLFW_KEY_PAGE_DOWN;
+    _glfw.win32.keycodes[0x149] = GLFW_KEY_PAGE_UP;
+    _glfw.win32.keycodes[0x045] = GLFW_KEY_PAUSE;
+    _glfw.win32.keycodes[0x039] = GLFW_KEY_SPACE;
+    _glfw.win32.keycodes[0x00F] = GLFW_KEY_TAB;
+    _glfw.win32.keycodes[0x03A] = GLFW_KEY_CAPS_LOCK;
+    _glfw.win32.keycodes[0x145] = GLFW_KEY_NUM_LOCK;
+    _glfw.win32.keycodes[0x046] = GLFW_KEY_SCROLL_LOCK;
+    _glfw.win32.keycodes[0x03B] = GLFW_KEY_F1;
+    _glfw.win32.keycodes[0x03C] = GLFW_KEY_F2;
+    _glfw.win32.keycodes[0x03D] = GLFW_KEY_F3;
+    _glfw.win32.keycodes[0x03E] = GLFW_KEY_F4;
+    _glfw.win32.keycodes[0x03F] = GLFW_KEY_F5;
+    _glfw.win32.keycodes[0x040] = GLFW_KEY_F6;
+    _glfw.win32.keycodes[0x041] = GLFW_KEY_F7;
+    _glfw.win32.keycodes[0x042] = GLFW_KEY_F8;
+    _glfw.win32.keycodes[0x043] = GLFW_KEY_F9;
+    _glfw.win32.keycodes[0x044] = GLFW_KEY_F10;
+    _glfw.win32.keycodes[0x057] = GLFW_KEY_F11;
+    _glfw.win32.keycodes[0x058] = GLFW_KEY_F12;
+    _glfw.win32.keycodes[0x064] = GLFW_KEY_F13;
+    _glfw.win32.keycodes[0x065] = GLFW_KEY_F14;
+    _glfw.win32.keycodes[0x066] = GLFW_KEY_F15;
+    _glfw.win32.keycodes[0x067] = GLFW_KEY_F16;
+    _glfw.win32.keycodes[0x068] = GLFW_KEY_F17;
+    _glfw.win32.keycodes[0x069] = GLFW_KEY_F18;
+    _glfw.win32.keycodes[0x06A] = GLFW_KEY_F19;
+    _glfw.win32.keycodes[0x06B] = GLFW_KEY_F20;
+    _glfw.win32.keycodes[0x06C] = GLFW_KEY_F21;
+    _glfw.win32.keycodes[0x06D] = GLFW_KEY_F22;
+    _glfw.win32.keycodes[0x06E] = GLFW_KEY_F23;
+    _glfw.win32.keycodes[0x076] = GLFW_KEY_F24;
+    _glfw.win32.keycodes[0x038] = GLFW_KEY_LEFT_ALT;
+    _glfw.win32.keycodes[0x01D] = GLFW_KEY_LEFT_CONTROL;
+    _glfw.win32.keycodes[0x02A] = GLFW_KEY_LEFT_SHIFT;
+    _glfw.win32.keycodes[0x15B] = GLFW_KEY_LEFT_SUPER;
+    _glfw.win32.keycodes[0x137] = GLFW_KEY_PRINT_SCREEN;
+    _glfw.win32.keycodes[0x138] = GLFW_KEY_RIGHT_ALT;
+    _glfw.win32.keycodes[0x11D] = GLFW_KEY_RIGHT_CONTROL;
+    _glfw.win32.keycodes[0x036] = GLFW_KEY_RIGHT_SHIFT;
+    _glfw.win32.keycodes[0x15C] = GLFW_KEY_RIGHT_SUPER;
+    _glfw.win32.keycodes[0x150] = GLFW_KEY_DOWN;
+    _glfw.win32.keycodes[0x14B] = GLFW_KEY_LEFT;
+    _glfw.win32.keycodes[0x14D] = GLFW_KEY_RIGHT;
+    _glfw.win32.keycodes[0x148] = GLFW_KEY_UP;
+
+    _glfw.win32.keycodes[0x052] = GLFW_KEY_KP_0;
+    _glfw.win32.keycodes[0x04F] = GLFW_KEY_KP_1;
+    _glfw.win32.keycodes[0x050] = GLFW_KEY_KP_2;
+    _glfw.win32.keycodes[0x051] = GLFW_KEY_KP_3;
+    _glfw.win32.keycodes[0x04B] = GLFW_KEY_KP_4;
+    _glfw.win32.keycodes[0x04C] = GLFW_KEY_KP_5;
+    _glfw.win32.keycodes[0x04D] = GLFW_KEY_KP_6;
+    _glfw.win32.keycodes[0x047] = GLFW_KEY_KP_7;
+    _glfw.win32.keycodes[0x048] = GLFW_KEY_KP_8;
+    _glfw.win32.keycodes[0x049] = GLFW_KEY_KP_9;
+    _glfw.win32.keycodes[0x04E] = GLFW_KEY_KP_ADD;
+    _glfw.win32.keycodes[0x053] = GLFW_KEY_KP_DECIMAL;
+    _glfw.win32.keycodes[0x135] = GLFW_KEY_KP_DIVIDE;
+    _glfw.win32.keycodes[0x11C] = GLFW_KEY_KP_ENTER;
+    _glfw.win32.keycodes[0x059] = GLFW_KEY_KP_EQUAL;
+    _glfw.win32.keycodes[0x037] = GLFW_KEY_KP_MULTIPLY;
+    _glfw.win32.keycodes[0x04A] = GLFW_KEY_KP_SUBTRACT;
+
+    for (scancode = 0;  scancode < 512;  scancode++)
+    {
+        if (_glfw.win32.keycodes[scancode] > 0)
+            _glfw.win32.scancodes[_glfw.win32.keycodes[scancode]] = scancode;
+    }
+}
+
+// Window procedure for the hidden helper window
+//
+static LRESULT CALLBACK helperWindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+    switch (uMsg)
+    {
+        case WM_DISPLAYCHANGE:
+            _glfwPollMonitorsWin32();
+            break;
+
+        case WM_DEVICECHANGE:
+        {
+            if (!_glfw.joysticksInitialized)
+                break;
+
+            if (wParam == DBT_DEVICEARRIVAL)
+            {
+                DEV_BROADCAST_HDR* dbh = (DEV_BROADCAST_HDR*) lParam;
+                if (dbh && dbh->dbch_devicetype == DBT_DEVTYP_DEVICEINTERFACE)
+                    _glfwDetectJoystickConnectionWin32();
+            }
+            else if (wParam == DBT_DEVICEREMOVECOMPLETE)
+            {
+                DEV_BROADCAST_HDR* dbh = (DEV_BROADCAST_HDR*) lParam;
+                if (dbh && dbh->dbch_devicetype == DBT_DEVTYP_DEVICEINTERFACE)
+                    _glfwDetectJoystickDisconnectionWin32();
+            }
+
+            break;
+        }
+    }
+
+    return DefWindowProcW(hWnd, uMsg, wParam, lParam);
+}
+
+// Creates a dummy window for behind-the-scenes work
+//
+static GLFWbool createHelperWindow(void)
+{
+    MSG msg;
+    WNDCLASSEXW wc = { sizeof(wc) };
+
+    wc.style         = CS_OWNDC;
+    wc.lpfnWndProc   = (WNDPROC) helperWindowProc;
+    wc.hInstance     = _glfw.win32.instance;
+    wc.lpszClassName = L"GLFW3 Helper";
+
+    _glfw.win32.helperWindowClass = RegisterClassExW(&wc);
+    if (!_glfw.win32.helperWindowClass)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to register helper window class");
+        return GLFW_FALSE;
+    }
+
+    _glfw.win32.helperWindowHandle =
+        CreateWindowExW(WS_EX_OVERLAPPEDWINDOW,
+                        MAKEINTATOM(_glfw.win32.helperWindowClass),
+                        L"GLFW message window",
+                        WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
+                        0, 0, 1, 1,
+                        NULL, NULL,
+                        _glfw.win32.instance,
+                        NULL);
+
+    if (!_glfw.win32.helperWindowHandle)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to create helper window");
+        return GLFW_FALSE;
+    }
+
+    // HACK: The command to the first ShowWindow call is ignored if the parent
+    //       process passed along a STARTUPINFO, so clear that with a no-op call
+    ShowWindow(_glfw.win32.helperWindowHandle, SW_HIDE);
+
+    // Register for HID device notifications
+    {
+        DEV_BROADCAST_DEVICEINTERFACE_W dbi;
+        ZeroMemory(&dbi, sizeof(dbi));
+        dbi.dbcc_size = sizeof(dbi);
+        dbi.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
+        dbi.dbcc_classguid = GUID_DEVINTERFACE_HID;
+
+        _glfw.win32.deviceNotificationHandle =
+            RegisterDeviceNotificationW(_glfw.win32.helperWindowHandle,
+                                        (DEV_BROADCAST_HDR*) &dbi,
+                                        DEVICE_NOTIFY_WINDOW_HANDLE);
+    }
+
+    while (PeekMessageW(&msg, _glfw.win32.helperWindowHandle, 0, 0, PM_REMOVE))
+    {
+        TranslateMessage(&msg);
+        DispatchMessageW(&msg);
+    }
+
+   return GLFW_TRUE;
+}
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Returns a wide string version of the specified UTF-8 string
+//
+WCHAR* _glfwCreateWideStringFromUTF8Win32(const char* source)
+{
+    WCHAR* target;
+    int count;
+
+    count = MultiByteToWideChar(CP_UTF8, 0, source, -1, NULL, 0);
+    if (!count)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to convert string from UTF-8");
+        return NULL;
+    }
+
+    target = _glfw_calloc(count, sizeof(WCHAR));
+
+    if (!MultiByteToWideChar(CP_UTF8, 0, source, -1, target, count))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to convert string from UTF-8");
+        _glfw_free(target);
+        return NULL;
+    }
+
+    return target;
+}
+
+// Returns a UTF-8 string version of the specified wide string
+//
+char* _glfwCreateUTF8FromWideStringWin32(const WCHAR* source)
+{
+    char* target;
+    int size;
+
+    size = WideCharToMultiByte(CP_UTF8, 0, source, -1, NULL, 0, NULL, NULL);
+    if (!size)
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to convert string to UTF-8");
+        return NULL;
+    }
+
+    target = _glfw_calloc(size, 1);
+
+    if (!WideCharToMultiByte(CP_UTF8, 0, source, -1, target, size, NULL, NULL))
+    {
+        _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
+                             "Win32: Failed to convert string to UTF-8");
+        _glfw_free(target);
+        return NULL;
+    }
+
+    return target;
+}
+
+// Reports the specified error, appending information about the last Win32 error
+//
+void _glfwInputErrorWin32(int error, const char* description)
+{
+    WCHAR buffer[_GLFW_MESSAGE_SIZE] = L"";
+    char message[_GLFW_MESSAGE_SIZE] = "";
+
+    FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM |
+                       FORMAT_MESSAGE_IGNORE_INSERTS |
+                       FORMAT_MESSAGE_MAX_WIDTH_MASK,
+                   NULL,
+                   GetLastError() & 0xffff,
+                   MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+                   buffer,
+                   sizeof(buffer) / sizeof(WCHAR),
+                   NULL);
+    WideCharToMultiByte(CP_UTF8, 0, buffer, -1, message, sizeof(message), NULL, NULL);
+
+    _glfwInputError(error, "%s: %s", description, message);
+}
+
+// Updates key names according to the current keyboard layout
+//
+void _glfwUpdateKeyNamesWin32(void)
+{
+    int key;
+    BYTE state[256] = {0};
+
+    memset(_glfw.win32.keynames, 0, sizeof(_glfw.win32.keynames));
+
+    for (key = GLFW_KEY_SPACE;  key <= GLFW_KEY_LAST;  key++)
+    {
+        UINT vk;
+        int scancode, length;
+        WCHAR chars[16];
+
+        scancode = _glfw.win32.scancodes[key];
+        if (scancode == -1)
+            continue;
+
+        if (key >= GLFW_KEY_KP_0 && key <= GLFW_KEY_KP_ADD)
+        {
+            const UINT vks[] = {
+                VK_NUMPAD0,  VK_NUMPAD1,  VK_NUMPAD2, VK_NUMPAD3,
+                VK_NUMPAD4,  VK_NUMPAD5,  VK_NUMPAD6, VK_NUMPAD7,
+                VK_NUMPAD8,  VK_NUMPAD9,  VK_DECIMAL, VK_DIVIDE,
+                VK_MULTIPLY, VK_SUBTRACT, VK_ADD
+            };
+
+            vk = vks[key - GLFW_KEY_KP_0];
+        }
+        else
+            vk = MapVirtualKeyW(scancode, MAPVK_VSC_TO_VK);
+
+        length = ToUnicode(vk, scancode, state,
+                           chars, sizeof(chars) / sizeof(WCHAR),
+                           0);
+
+        if (length == -1)
+        {
+            // This is a dead key, so we need a second simulated key press
+            // to make it output its own character (usually a diacritic)
+            length = ToUnicode(vk, scancode, state,
+                               chars, sizeof(chars) / sizeof(WCHAR),
+                               0);
+        }
+
+        if (length < 1)
+            continue;
+
+        WideCharToMultiByte(CP_UTF8, 0, chars, 1,
+                            _glfw.win32.keynames[key],
+                            sizeof(_glfw.win32.keynames[key]),
+                            NULL, NULL);
+    }
+}
+
+// Replacement for IsWindowsVersionOrGreater, as we cannot rely on the
+// application having a correct embedded manifest
+//
+BOOL _glfwIsWindowsVersionOrGreaterWin32(WORD major, WORD minor, WORD sp)
+{
+    OSVERSIONINFOEXW osvi = { sizeof(osvi), major, minor, 0, 0, {0}, sp };
+    DWORD mask = VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR;
+    ULONGLONG cond = VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_MINORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
+    // HACK: Use RtlVerifyVersionInfo instead of VerifyVersionInfoW as the
+    //       latter lies unless the user knew to embed a non-default manifest
+    //       announcing support for Windows 10 via supportedOS GUID
+    return RtlVerifyVersionInfo(&osvi, mask, cond) == 0;
+}
+
+// Checks whether we are on at least the specified build of Windows 10
+//
+BOOL _glfwIsWindows10BuildOrGreaterWin32(WORD build)
+{
+    OSVERSIONINFOEXW osvi = { sizeof(osvi), 10, 0, build };
+    DWORD mask = VER_MAJORVERSION | VER_MINORVERSION | VER_BUILDNUMBER;
+    ULONGLONG cond = VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_MINORVERSION, VER_GREATER_EQUAL);
+    cond = VerSetConditionMask(cond, VER_BUILDNUMBER, VER_GREATER_EQUAL);
+    // HACK: Use RtlVerifyVersionInfo instead of VerifyVersionInfoW as the
+    //       latter lies unless the user knew to embed a non-default manifest
+    //       announcing support for Windows 10 via supportedOS GUID
+    return RtlVerifyVersionInfo(&osvi, mask, cond) == 0;
+}
+
+GLFWbool _glfwConnectWin32(int platformID, _GLFWplatform* platform)
+{
+    const _GLFWplatform win32 =
+    {
+        .platformID = GLFW_PLATFORM_WIN32,
+        .init = _glfwInitWin32,
+        .terminate = _glfwTerminateWin32,
+        .getCursorPos = _glfwGetCursorPosWin32,
+        .setCursorPos = _glfwSetCursorPosWin32,
+        .setCursorMode = _glfwSetCursorModeWin32,
+        .setRawMouseMotion = _glfwSetRawMouseMotionWin32,
+        .rawMouseMotionSupported = _glfwRawMouseMotionSupportedWin32,
+        .createCursor = _glfwCreateCursorWin32,
+        .createStandardCursor = _glfwCreateStandardCursorWin32,
+        .destroyCursor = _glfwDestroyCursorWin32,
+        .setCursor = _glfwSetCursorWin32,
+        .getScancodeName = _glfwGetScancodeNameWin32,
+        .getKeyScancode = _glfwGetKeyScancodeWin32,
+        .setClipboardString = _glfwSetClipboardStringWin32,
+        .getClipboardString = _glfwGetClipboardStringWin32,
+        .initJoysticks = _glfwInitJoysticksWin32,
+        .terminateJoysticks = _glfwTerminateJoysticksWin32,
+        .pollJoystick = _glfwPollJoystickWin32,
+        .getMappingName = _glfwGetMappingNameWin32,
+        .updateGamepadGUID = _glfwUpdateGamepadGUIDWin32,
+        .freeMonitor = _glfwFreeMonitorWin32,
+        .getMonitorPos = _glfwGetMonitorPosWin32,
+        .getMonitorContentScale = _glfwGetMonitorContentScaleWin32,
+        .getMonitorWorkarea = _glfwGetMonitorWorkareaWin32,
+        .getVideoModes = _glfwGetVideoModesWin32,
+        .getVideoMode = _glfwGetVideoModeWin32,
+        .getGammaRamp = _glfwGetGammaRampWin32,
+        .setGammaRamp = _glfwSetGammaRampWin32,
+        .createWindow = _glfwCreateWindowWin32,
+        .destroyWindow = _glfwDestroyWindowWin32,
+        .setWindowTitle = _glfwSetWindowTitleWin32,
+        .setWindowIcon = _glfwSetWindowIconWin32,
+        .getWindowPos = _glfwGetWindowPosWin32,
+        .setWindowPos = _glfwSetWindowPosWin32,
+        .getWindowSize = _glfwGetWindowSizeWin32,
+        .setWindowSize = _glfwSetWindowSizeWin32,
+        .setWindowSizeLimits = _glfwSetWindowSizeLimitsWin32,
+        .setWindowAspectRatio = _glfwSetWindowAspectRatioWin32,
+        .getFramebufferSize = _glfwGetFramebufferSizeWin32,
+        .getWindowFrameSize = _glfwGetWindowFrameSizeWin32,
+        .getWindowContentScale = _glfwGetWindowContentScaleWin32,
+        .iconifyWindow = _glfwIconifyWindowWin32,
+        .restoreWindow = _glfwRestoreWindowWin32,
+        .maximizeWindow = _glfwMaximizeWindowWin32,
+        .showWindow = _glfwShowWindowWin32,
+        .hideWindow = _glfwHideWindowWin32,
+        .requestWindowAttention = _glfwRequestWindowAttentionWin32,
+        .focusWindow = _glfwFocusWindowWin32,
+        .setWindowMonitor = _glfwSetWindowMonitorWin32,
+        .windowFocused = _glfwWindowFocusedWin32,
+        .windowIconified = _glfwWindowIconifiedWin32,
+        .windowVisible = _glfwWindowVisibleWin32,
+        .windowMaximized = _glfwWindowMaximizedWin32,
+        .windowHovered = _glfwWindowHoveredWin32,
+        .framebufferTransparent = _glfwFramebufferTransparentWin32,
+        .getWindowOpacity = _glfwGetWindowOpacityWin32,
+        .setWindowResizable = _glfwSetWindowResizableWin32,
+        .setWindowDecorated = _glfwSetWindowDecoratedWin32,
+        .setWindowFloating = _glfwSetWindowFloatingWin32,
+        .setWindowOpacity = _glfwSetWindowOpacityWin32,
+        .setWindowMousePassthrough = _glfwSetWindowMousePassthroughWin32,
+        .pollEvents = _glfwPollEventsWin32,
+        .waitEvents = _glfwWaitEventsWin32,
+        .waitEventsTimeout = _glfwWaitEventsTimeoutWin32,
+        .postEmptyEvent = _glfwPostEmptyEventWin32,
+        .getEGLPlatform = _glfwGetEGLPlatformWin32,
+        .getEGLNativeDisplay = _glfwGetEGLNativeDisplayWin32,
+        .getEGLNativeWindow = _glfwGetEGLNativeWindowWin32,
+        .getRequiredInstanceExtensions = _glfwGetRequiredInstanceExtensionsWin32,
+        .getPhysicalDevicePresentationSupport = _glfwGetPhysicalDevicePresentationSupportWin32,
+        .createWindowSurface = _glfwCreateWindowSurfaceWin32
+    };
+
+    *platform = win32;
+    return GLFW_TRUE;
+}
+
+int _glfwInitWin32(void)
+{
+    if (!loadLibraries())
+        return GLFW_FALSE;
+
+    createKeyTablesWin32();
+    _glfwUpdateKeyNamesWin32();
+
+    if (_glfwIsWindows10Version1703OrGreaterWin32())
+        SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);
+    else if (IsWindows8Point1OrGreater())
+        SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
+    else if (IsWindowsVistaOrGreater())
+        SetProcessDPIAware();
+
+    if (!createHelperWindow())
+        return GLFW_FALSE;
+
+    _glfwPollMonitorsWin32();
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateWin32(void)
+{
+    if (_glfw.win32.blankCursor)
+        DestroyIcon((HICON) _glfw.win32.blankCursor);
+
+    if (_glfw.win32.deviceNotificationHandle)
+        UnregisterDeviceNotification(_glfw.win32.deviceNotificationHandle);
+
+    if (_glfw.win32.helperWindowHandle)
+        DestroyWindow(_glfw.win32.helperWindowHandle);
+    if (_glfw.win32.helperWindowClass)
+        UnregisterClassW(MAKEINTATOM(_glfw.win32.helperWindowClass), _glfw.win32.instance);
+    if (_glfw.win32.mainWindowClass)
+        UnregisterClassW(MAKEINTATOM(_glfw.win32.mainWindowClass), _glfw.win32.instance);
+
+    _glfw_free(_glfw.win32.clipboardString);
+    _glfw_free(_glfw.win32.rawInput);
+
+    _glfwTerminateWGL();
+    _glfwTerminateEGL();
+    _glfwTerminateOSMesa();
+
+    freeLibraries();
+}
+
+#endif // _GLFW_WIN32
+

raylib/external/glfw/src/win32_joystick.c

@@ -0,0 +1,767 @@
+//========================================================================
+// GLFW 3.4 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WIN32)
+
+#include <stdio.h>
+#include <math.h>
+
+#define _GLFW_TYPE_AXIS     0
+#define _GLFW_TYPE_SLIDER   1
+#define _GLFW_TYPE_BUTTON   2
+#define _GLFW_TYPE_POV      3
+
+// Data produced with DirectInput device object enumeration
+//
+typedef struct _GLFWobjenumWin32
+{
+    IDirectInputDevice8W*   device;
+    _GLFWjoyobjectWin32*    objects;
+    int                     objectCount;
+    int                     axisCount;
+    int                     sliderCount;
+    int                     buttonCount;
+    int                     povCount;
+} _GLFWobjenumWin32;
+
+// Define local copies of the necessary GUIDs
+//
+static const GUID _glfw_IID_IDirectInput8W =
+    {0xbf798031,0x483a,0x4da2,{0xaa,0x99,0x5d,0x64,0xed,0x36,0x97,0x00}};
+static const GUID _glfw_GUID_XAxis =
+    {0xa36d02e0,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_YAxis =
+    {0xa36d02e1,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_ZAxis =
+    {0xa36d02e2,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_RxAxis =
+    {0xa36d02f4,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_RyAxis =
+    {0xa36d02f5,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_RzAxis =
+    {0xa36d02e3,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_Slider =
+    {0xa36d02e4,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+static const GUID _glfw_GUID_POV =
+    {0xa36d02f2,0xc9f3,0x11cf,{0xbf,0xc7,0x44,0x45,0x53,0x54,0x00,0x00}};
+
+#define IID_IDirectInput8W _glfw_IID_IDirectInput8W
+#define GUID_XAxis _glfw_GUID_XAxis
+#define GUID_YAxis _glfw_GUID_YAxis
+#define GUID_ZAxis _glfw_GUID_ZAxis
+#define GUID_RxAxis _glfw_GUID_RxAxis
+#define GUID_RyAxis _glfw_GUID_RyAxis
+#define GUID_RzAxis _glfw_GUID_RzAxis
+#define GUID_Slider _glfw_GUID_Slider
+#define GUID_POV _glfw_GUID_POV
+
+// Object data array for our clone of c_dfDIJoystick
+// Generated with https://github.com/elmindreda/c_dfDIJoystick2
+//
+static DIOBJECTDATAFORMAT _glfwObjectDataFormats[] =
+{
+    { &GUID_XAxis,DIJOFS_X,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_YAxis,DIJOFS_Y,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_ZAxis,DIJOFS_Z,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_RxAxis,DIJOFS_RX,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_RyAxis,DIJOFS_RY,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_RzAxis,DIJOFS_RZ,DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_Slider,DIJOFS_SLIDER(0),DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_Slider,DIJOFS_SLIDER(1),DIDFT_AXIS|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,DIDOI_ASPECTPOSITION },
+    { &GUID_POV,DIJOFS_POV(0),DIDFT_POV|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { &GUID_POV,DIJOFS_POV(1),DIDFT_POV|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { &GUID_POV,DIJOFS_POV(2),DIDFT_POV|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { &GUID_POV,DIJOFS_POV(3),DIDFT_POV|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(0),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(1),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(2),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(3),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(4),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(5),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(6),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(7),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(8),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(9),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(10),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(11),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(12),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(13),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(14),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(15),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(16),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(17),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(18),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(19),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(20),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(21),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(22),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(23),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(24),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(25),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(26),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(27),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(28),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(29),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(30),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+    { NULL,DIJOFS_BUTTON(31),DIDFT_BUTTON|DIDFT_OPTIONAL|DIDFT_ANYINSTANCE,0 },
+};
+
+// Our clone of c_dfDIJoystick
+//
+static const DIDATAFORMAT _glfwDataFormat =
+{
+    sizeof(DIDATAFORMAT),
+    sizeof(DIOBJECTDATAFORMAT),
+    DIDFT_ABSAXIS,
+    sizeof(DIJOYSTATE),
+    sizeof(_glfwObjectDataFormats) / sizeof(DIOBJECTDATAFORMAT),
+    _glfwObjectDataFormats
+};
+
+// Returns a description fitting the specified XInput capabilities
+//
+static const char* getDeviceDescription(const XINPUT_CAPABILITIES* xic)
+{
+    switch (xic->SubType)
+    {
+        case XINPUT_DEVSUBTYPE_WHEEL:
+            return "XInput Wheel";
+        case XINPUT_DEVSUBTYPE_ARCADE_STICK:
+            return "XInput Arcade Stick";
+        case XINPUT_DEVSUBTYPE_FLIGHT_STICK:
+            return "XInput Flight Stick";
+        case XINPUT_DEVSUBTYPE_DANCE_PAD:
+            return "XInput Dance Pad";
+        case XINPUT_DEVSUBTYPE_GUITAR:
+            return "XInput Guitar";
+        case XINPUT_DEVSUBTYPE_DRUM_KIT:
+            return "XInput Drum Kit";
+        case XINPUT_DEVSUBTYPE_GAMEPAD:
+        {
+            if (xic->Flags & XINPUT_CAPS_WIRELESS)
+                return "Wireless Xbox Controller";
+            else
+                return "Xbox Controller";
+        }
+    }
+
+    return "Unknown XInput Device";
+}
+
+// Lexically compare device objects
+//
+static int compareJoystickObjects(const void* first, const void* second)
+{
+    const _GLFWjoyobjectWin32* fo = first;
+    const _GLFWjoyobjectWin32* so = second;
+
+    if (fo->type != so->type)
+        return fo->type - so->type;
+
+    return fo->offset - so->offset;
+}
+
+// Checks whether the specified device supports XInput
+// Technique from FDInputJoystickManager::IsXInputDeviceFast in ZDoom
+//
+static GLFWbool supportsXInput(const GUID* guid)
+{
+    UINT i, count = 0;
+    RAWINPUTDEVICELIST* ridl;
+    GLFWbool result = GLFW_FALSE;
+
+    if (GetRawInputDeviceList(NULL, &count, sizeof(RAWINPUTDEVICELIST)) != 0)
+        return GLFW_FALSE;
+
+    ridl = _glfw_calloc(count, sizeof(RAWINPUTDEVICELIST));
+
+    if (GetRawInputDeviceList(ridl, &count, sizeof(RAWINPUTDEVICELIST)) == (UINT) -1)
+    {
+        _glfw_free(ridl);
+        return GLFW_FALSE;
+    }
+
+    for (i = 0;  i < count;  i++)
+    {
+        RID_DEVICE_INFO rdi;
+        char name[256];
+        UINT size;
+
+        if (ridl[i].dwType != RIM_TYPEHID)
+            continue;
+
+        ZeroMemory(&rdi, sizeof(rdi));
+        rdi.cbSize = sizeof(rdi);
+        size = sizeof(rdi);
+
+        if ((INT) GetRawInputDeviceInfoA(ridl[i].hDevice,
+                                         RIDI_DEVICEINFO,
+                                         &rdi, &size) == -1)
+        {
+            continue;
+        }
+
+        if (MAKELONG(rdi.hid.dwVendorId, rdi.hid.dwProductId) != (LONG) guid->Data1)
+            continue;
+
+        memset(name, 0, sizeof(name));
+        size = sizeof(name);
+
+        if ((INT) GetRawInputDeviceInfoA(ridl[i].hDevice,
+                                         RIDI_DEVICENAME,
+                                         name, &size) == -1)
+        {
+            break;
+        }
+
+        name[sizeof(name) - 1] = '\0';
+        if (strstr(name, "IG_"))
+        {
+            result = GLFW_TRUE;
+            break;
+        }
+    }
+
+    _glfw_free(ridl);
+    return result;
+}
+
+// Frees all resources associated with the specified joystick
+//
+static void closeJoystick(_GLFWjoystick* js)
+{
+    _glfwInputJoystick(js, GLFW_DISCONNECTED);
+
+    if (js->win32.device)
+    {
+        IDirectInputDevice8_Unacquire(js->win32.device);
+        IDirectInputDevice8_Release(js->win32.device);
+    }
+
+    _glfw_free(js->win32.objects);
+    _glfwFreeJoystick(js);
+}
+
+// DirectInput device object enumeration callback
+// Insights gleaned from SDL
+//
+static BOOL CALLBACK deviceObjectCallback(const DIDEVICEOBJECTINSTANCEW* doi,
+                                          void* user)
+{
+    _GLFWobjenumWin32* data = user;
+    _GLFWjoyobjectWin32* object = data->objects + data->objectCount;
+
+    if (DIDFT_GETTYPE(doi->dwType) & DIDFT_AXIS)
+    {
+        DIPROPRANGE dipr;
+
+        if (memcmp(&doi->guidType, &GUID_Slider, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_SLIDER(data->sliderCount);
+        else if (memcmp(&doi->guidType, &GUID_XAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_X;
+        else if (memcmp(&doi->guidType, &GUID_YAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_Y;
+        else if (memcmp(&doi->guidType, &GUID_ZAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_Z;
+        else if (memcmp(&doi->guidType, &GUID_RxAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_RX;
+        else if (memcmp(&doi->guidType, &GUID_RyAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_RY;
+        else if (memcmp(&doi->guidType, &GUID_RzAxis, sizeof(GUID)) == 0)
+            object->offset = DIJOFS_RZ;
+        else
+            return DIENUM_CONTINUE;
+
+        ZeroMemory(&dipr, sizeof(dipr));
+        dipr.diph.dwSize = sizeof(dipr);
+        dipr.diph.dwHeaderSize = sizeof(dipr.diph);
+        dipr.diph.dwObj = doi->dwType;
+        dipr.diph.dwHow = DIPH_BYID;
+        dipr.lMin = -32768;
+        dipr.lMax =  32767;
+
+        if (FAILED(IDirectInputDevice8_SetProperty(data->device,
+                                                   DIPROP_RANGE,
+                                                   &dipr.diph)))
+        {
+            return DIENUM_CONTINUE;
+        }
+
+        if (memcmp(&doi->guidType, &GUID_Slider, sizeof(GUID)) == 0)
+        {
+            object->type = _GLFW_TYPE_SLIDER;
+            data->sliderCount++;
+        }
+        else
+        {
+            object->type = _GLFW_TYPE_AXIS;
+            data->axisCount++;
+        }
+    }
+    else if (DIDFT_GETTYPE(doi->dwType) & DIDFT_BUTTON)
+    {
+        object->offset = DIJOFS_BUTTON(data->buttonCount);
+        object->type = _GLFW_TYPE_BUTTON;
+        data->buttonCount++;
+    }
+    else if (DIDFT_GETTYPE(doi->dwType) & DIDFT_POV)
+    {
+        object->offset = DIJOFS_POV(data->povCount);
+        object->type = _GLFW_TYPE_POV;
+        data->povCount++;
+    }
+
+    data->objectCount++;
+    return DIENUM_CONTINUE;
+}
+
+// DirectInput device enumeration callback
+//
+static BOOL CALLBACK deviceCallback(const DIDEVICEINSTANCE* di, void* user)
+{
+    int jid = 0;
+    DIDEVCAPS dc;
+    DIPROPDWORD dipd;
+    IDirectInputDevice8* device;
+    _GLFWobjenumWin32 data;
+    _GLFWjoystick* js;
+    char guid[33];
+    char name[256];
+
+    for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        js = _glfw.joysticks + jid;
+        if (js->connected)
+        {
+            if (memcmp(&js->win32.guid, &di->guidInstance, sizeof(GUID)) == 0)
+                return DIENUM_CONTINUE;
+        }
+    }
+
+    if (supportsXInput(&di->guidProduct))
+        return DIENUM_CONTINUE;
+
+    if (FAILED(IDirectInput8_CreateDevice(_glfw.win32.dinput8.api,
+                                          &di->guidInstance,
+                                          &device,
+                                          NULL)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to create device");
+        return DIENUM_CONTINUE;
+    }
+
+    if (FAILED(IDirectInputDevice8_SetDataFormat(device, &_glfwDataFormat)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to set device data format");
+
+        IDirectInputDevice8_Release(device);
+        return DIENUM_CONTINUE;
+    }
+
+    ZeroMemory(&dc, sizeof(dc));
+    dc.dwSize = sizeof(dc);
+
+    if (FAILED(IDirectInputDevice8_GetCapabilities(device, &dc)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to query device capabilities");
+
+        IDirectInputDevice8_Release(device);
+        return DIENUM_CONTINUE;
+    }
+
+    ZeroMemory(&dipd, sizeof(dipd));
+    dipd.diph.dwSize = sizeof(dipd);
+    dipd.diph.dwHeaderSize = sizeof(dipd.diph);
+    dipd.diph.dwHow = DIPH_DEVICE;
+    dipd.dwData = DIPROPAXISMODE_ABS;
+
+    if (FAILED(IDirectInputDevice8_SetProperty(device,
+                                               DIPROP_AXISMODE,
+                                               &dipd.diph)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to set device axis mode");
+
+        IDirectInputDevice8_Release(device);
+        return DIENUM_CONTINUE;
+    }
+
+    memset(&data, 0, sizeof(data));
+    data.device = device;
+    data.objects = _glfw_calloc(dc.dwAxes + (size_t) dc.dwButtons + dc.dwPOVs,
+                                sizeof(_GLFWjoyobjectWin32));
+
+    if (FAILED(IDirectInputDevice8_EnumObjects(device,
+                                               deviceObjectCallback,
+                                               &data,
+                                               DIDFT_AXIS | DIDFT_BUTTON | DIDFT_POV)))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to enumerate device objects");
+
+        IDirectInputDevice8_Release(device);
+        _glfw_free(data.objects);
+        return DIENUM_CONTINUE;
+    }
+
+    qsort(data.objects, data.objectCount,
+          sizeof(_GLFWjoyobjectWin32),
+          compareJoystickObjects);
+
+    if (!WideCharToMultiByte(CP_UTF8, 0,
+                             di->tszInstanceName, -1,
+                             name, sizeof(name),
+                             NULL, NULL))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to convert joystick name to UTF-8");
+
+        IDirectInputDevice8_Release(device);
+        _glfw_free(data.objects);
+        return DIENUM_STOP;
+    }
+
+    // Generate a joystick GUID that matches the SDL 2.0.5+ one
+    if (memcmp(&di->guidProduct.Data4[2], "PIDVID", 6) == 0)
+    {
+        sprintf(guid, "03000000%02x%02x0000%02x%02x000000000000",
+                (uint8_t) di->guidProduct.Data1,
+                (uint8_t) (di->guidProduct.Data1 >> 8),
+                (uint8_t) (di->guidProduct.Data1 >> 16),
+                (uint8_t) (di->guidProduct.Data1 >> 24));
+    }
+    else
+    {
+        sprintf(guid, "05000000%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x00",
+                name[0], name[1], name[2], name[3],
+                name[4], name[5], name[6], name[7],
+                name[8], name[9], name[10]);
+    }
+
+    js = _glfwAllocJoystick(name, guid,
+                            data.axisCount + data.sliderCount,
+                            data.buttonCount,
+                            data.povCount);
+    if (!js)
+    {
+        IDirectInputDevice8_Release(device);
+        _glfw_free(data.objects);
+        return DIENUM_STOP;
+    }
+
+    js->win32.device = device;
+    js->win32.guid = di->guidInstance;
+    js->win32.objects = data.objects;
+    js->win32.objectCount = data.objectCount;
+
+    _glfwInputJoystick(js, GLFW_CONNECTED);
+    return DIENUM_CONTINUE;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Checks for new joysticks after DBT_DEVICEARRIVAL
+//
+void _glfwDetectJoystickConnectionWin32(void)
+{
+    if (_glfw.win32.xinput.instance)
+    {
+        DWORD index;
+
+        for (index = 0;  index < XUSER_MAX_COUNT;  index++)
+        {
+            int jid;
+            char guid[33];
+            XINPUT_CAPABILITIES xic;
+            _GLFWjoystick* js;
+
+            for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+            {
+                if (_glfw.joysticks[jid].connected &&
+                    _glfw.joysticks[jid].win32.device == NULL &&
+                    _glfw.joysticks[jid].win32.index == index)
+                {
+                    break;
+                }
+            }
+
+            if (jid <= GLFW_JOYSTICK_LAST)
+                continue;
+
+            if (XInputGetCapabilities(index, 0, &xic) != ERROR_SUCCESS)
+                continue;
+
+            // Generate a joystick GUID that matches the SDL 2.0.5+ one
+            sprintf(guid, "78696e707574%02x000000000000000000",
+                    xic.SubType & 0xff);
+
+            js = _glfwAllocJoystick(getDeviceDescription(&xic), guid, 6, 10, 1);
+            if (!js)
+                continue;
+
+            js->win32.index = index;
+
+            _glfwInputJoystick(js, GLFW_CONNECTED);
+        }
+    }
+
+    if (_glfw.win32.dinput8.api)
+    {
+        if (FAILED(IDirectInput8_EnumDevices(_glfw.win32.dinput8.api,
+                                             DI8DEVCLASS_GAMECTRL,
+                                             deviceCallback,
+                                             NULL,
+                                             DIEDFL_ALLDEVICES)))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Failed to enumerate DirectInput8 devices");
+            return;
+        }
+    }
+}
+
+// Checks for joystick disconnection after DBT_DEVICEREMOVECOMPLETE
+//
+void _glfwDetectJoystickDisconnectionWin32(void)
+{
+    int jid;
+
+    for (jid = 0;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+    {
+        _GLFWjoystick* js = _glfw.joysticks + jid;
+        if (js->connected)
+            _glfwPollJoystickWin32(js, _GLFW_POLL_PRESENCE);
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwInitJoysticksWin32(void)
+{
+    if (_glfw.win32.dinput8.instance)
+    {
+        if (FAILED(DirectInput8Create(_glfw.win32.instance,
+                                      DIRECTINPUT_VERSION,
+                                      &IID_IDirectInput8W,
+                                      (void**) &_glfw.win32.dinput8.api,
+                                      NULL)))
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "Win32: Failed to create interface");
+            return GLFW_FALSE;
+        }
+    }
+
+    _glfwDetectJoystickConnectionWin32();
+    return GLFW_TRUE;
+}
+
+void _glfwTerminateJoysticksWin32(void)
+{
+    int jid;
+
+    for (jid = GLFW_JOYSTICK_1;  jid <= GLFW_JOYSTICK_LAST;  jid++)
+        closeJoystick(_glfw.joysticks + jid);
+
+    if (_glfw.win32.dinput8.api)
+        IDirectInput8_Release(_glfw.win32.dinput8.api);
+}
+
+GLFWbool _glfwPollJoystickWin32(_GLFWjoystick* js, int mode)
+{
+    if (js->win32.device)
+    {
+        int i, ai = 0, bi = 0, pi = 0;
+        HRESULT result;
+        DIJOYSTATE state = {0};
+
+        IDirectInputDevice8_Poll(js->win32.device);
+        result = IDirectInputDevice8_GetDeviceState(js->win32.device,
+                                                    sizeof(state),
+                                                    &state);
+        if (result == DIERR_NOTACQUIRED || result == DIERR_INPUTLOST)
+        {
+            IDirectInputDevice8_Acquire(js->win32.device);
+            IDirectInputDevice8_Poll(js->win32.device);
+            result = IDirectInputDevice8_GetDeviceState(js->win32.device,
+                                                        sizeof(state),
+                                                        &state);
+        }
+
+        if (FAILED(result))
+        {
+            closeJoystick(js);
+            return GLFW_FALSE;
+        }
+
+        if (mode == _GLFW_POLL_PRESENCE)
+            return GLFW_TRUE;
+
+        for (i = 0;  i < js->win32.objectCount;  i++)
+        {
+            const void* data = (char*) &state + js->win32.objects[i].offset;
+
+            switch (js->win32.objects[i].type)
+            {
+                case _GLFW_TYPE_AXIS:
+                case _GLFW_TYPE_SLIDER:
+                {
+                    const float value = (*((LONG*) data) + 0.5f) / 32767.5f;
+                    _glfwInputJoystickAxis(js, ai, value);
+                    ai++;
+                    break;
+                }
+
+                case _GLFW_TYPE_BUTTON:
+                {
+                    const char value = (*((BYTE*) data) & 0x80) != 0;
+                    _glfwInputJoystickButton(js, bi, value);
+                    bi++;
+                    break;
+                }
+
+                case _GLFW_TYPE_POV:
+                {
+                    const int states[9] =
+                    {
+                        GLFW_HAT_UP,
+                        GLFW_HAT_RIGHT_UP,
+                        GLFW_HAT_RIGHT,
+                        GLFW_HAT_RIGHT_DOWN,
+                        GLFW_HAT_DOWN,
+                        GLFW_HAT_LEFT_DOWN,
+                        GLFW_HAT_LEFT,
+                        GLFW_HAT_LEFT_UP,
+                        GLFW_HAT_CENTERED
+                    };
+
+                    // Screams of horror are appropriate at this point
+                    int stateIndex = LOWORD(*(DWORD*) data) / (45 * DI_DEGREES);
+                    if (stateIndex < 0 || stateIndex > 8)
+                        stateIndex = 8;
+
+                    _glfwInputJoystickHat(js, pi, states[stateIndex]);
+                    pi++;
+                    break;
+                }
+            }
+        }
+    }
+    else
+    {
+        int i, dpad = 0;
+        DWORD result;
+        XINPUT_STATE xis;
+        const WORD buttons[10] =
+        {
+            XINPUT_GAMEPAD_A,
+            XINPUT_GAMEPAD_B,
+            XINPUT_GAMEPAD_X,
+            XINPUT_GAMEPAD_Y,
+            XINPUT_GAMEPAD_LEFT_SHOULDER,
+            XINPUT_GAMEPAD_RIGHT_SHOULDER,
+            XINPUT_GAMEPAD_BACK,
+            XINPUT_GAMEPAD_START,
+            XINPUT_GAMEPAD_LEFT_THUMB,
+            XINPUT_GAMEPAD_RIGHT_THUMB
+        };
+
+        result = XInputGetState(js->win32.index, &xis);
+        if (result != ERROR_SUCCESS)
+        {
+            if (result == ERROR_DEVICE_NOT_CONNECTED)
+                closeJoystick(js);
+
+            return GLFW_FALSE;
+        }
+
+        if (mode == _GLFW_POLL_PRESENCE)
+            return GLFW_TRUE;
+
+        _glfwInputJoystickAxis(js, 0, (xis.Gamepad.sThumbLX + 0.5f) / 32767.5f);
+        _glfwInputJoystickAxis(js, 1, -(xis.Gamepad.sThumbLY + 0.5f) / 32767.5f);
+        _glfwInputJoystickAxis(js, 2, (xis.Gamepad.sThumbRX + 0.5f) / 32767.5f);
+        _glfwInputJoystickAxis(js, 3, -(xis.Gamepad.sThumbRY + 0.5f) / 32767.5f);
+        _glfwInputJoystickAxis(js, 4, xis.Gamepad.bLeftTrigger / 127.5f - 1.f);
+        _glfwInputJoystickAxis(js, 5, xis.Gamepad.bRightTrigger / 127.5f - 1.f);
+
+        for (i = 0;  i < 10;  i++)
+        {
+            const char value = (xis.Gamepad.wButtons & buttons[i]) ? 1 : 0;
+            _glfwInputJoystickButton(js, i, value);
+        }
+
+        if (xis.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_UP)
+            dpad |= GLFW_HAT_UP;
+        if (xis.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_RIGHT)
+            dpad |= GLFW_HAT_RIGHT;
+        if (xis.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_DOWN)
+            dpad |= GLFW_HAT_DOWN;
+        if (xis.Gamepad.wButtons & XINPUT_GAMEPAD_DPAD_LEFT)
+            dpad |= GLFW_HAT_LEFT;
+
+        // Treat invalid combinations as neither being pressed
+        // while preserving what data can be preserved
+        if ((dpad & GLFW_HAT_RIGHT) && (dpad & GLFW_HAT_LEFT))
+            dpad &= ~(GLFW_HAT_RIGHT | GLFW_HAT_LEFT);
+        if ((dpad & GLFW_HAT_UP) && (dpad & GLFW_HAT_DOWN))
+            dpad &= ~(GLFW_HAT_UP | GLFW_HAT_DOWN);
+
+        _glfwInputJoystickHat(js, 0, dpad);
+    }
+
+    return GLFW_TRUE;
+}
+
+const char* _glfwGetMappingNameWin32(void)
+{
+    return "Windows";
+}
+
+void _glfwUpdateGamepadGUIDWin32(char* guid)
+{
+    if (strcmp(guid + 20, "504944564944") == 0)
+    {
+        char original[33];
+        strncpy(original, guid, sizeof(original) - 1);
+        sprintf(guid, "03000000%.4s0000%.4s000000000000",
+                original, original + 4);
+    }
+}
+
+#endif // _GLFW_WIN32
+

raylib/external/glfw/src/win32_joystick.h

@@ -0,0 +1,51 @@
+//========================================================================
+// GLFW 3.4 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define GLFW_WIN32_JOYSTICK_STATE         _GLFWjoystickWin32 win32;
+#define GLFW_WIN32_LIBRARY_JOYSTICK_STATE
+
+// Joystick element (axis, button or slider)
+//
+typedef struct _GLFWjoyobjectWin32
+{
+    int                     offset;
+    int                     type;
+} _GLFWjoyobjectWin32;
+
+// Win32-specific per-joystick data
+//
+typedef struct _GLFWjoystickWin32
+{
+    _GLFWjoyobjectWin32*    objects;
+    int                     objectCount;
+    IDirectInputDevice8W*   device;
+    DWORD                   index;
+    GUID                    guid;
+} _GLFWjoystickWin32;
+
+void _glfwDetectJoystickConnectionWin32(void);
+void _glfwDetectJoystickDisconnectionWin32(void);
+

raylib/external/glfw/src/win32_module.c

@@ -0,0 +1,51 @@
+//========================================================================
+// GLFW 3.4 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2021 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_WIN32_MODULE)
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void* _glfwPlatformLoadModule(const char* path)
+{
+    return LoadLibraryA(path);
+}
+
+void _glfwPlatformFreeModule(void* module)
+{
+    FreeLibrary((HMODULE) module);
+}
+
+GLFWproc _glfwPlatformGetModuleSymbol(void* module, const char* name)
+{
+    return (GLFWproc) GetProcAddress((HMODULE) module, name);
+}
+
+#endif // GLFW_BUILD_WIN32_MODULE
+

raylib/external/glfw/src/win32_monitor.c

@@ -0,0 +1,569 @@
+//========================================================================
+// GLFW 3.4 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WIN32)
+
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <wchar.h>
+
+
+// Callback for EnumDisplayMonitors in createMonitor
+//
+static BOOL CALLBACK monitorCallback(HMONITOR handle,
+                                     HDC dc,
+                                     RECT* rect,
+                                     LPARAM data)
+{
+    MONITORINFOEXW mi;
+    ZeroMemory(&mi, sizeof(mi));
+    mi.cbSize = sizeof(mi);
+
+    if (GetMonitorInfoW(handle, (MONITORINFO*) &mi))
+    {
+        _GLFWmonitor* monitor = (_GLFWmonitor*) data;
+        if (wcscmp(mi.szDevice, monitor->win32.adapterName) == 0)
+            monitor->win32.handle = handle;
+    }
+
+    return TRUE;
+}
+
+// Create monitor from an adapter and (optionally) a display
+//
+static _GLFWmonitor* createMonitor(DISPLAY_DEVICEW* adapter,
+                                   DISPLAY_DEVICEW* display)
+{
+    _GLFWmonitor* monitor;
+    int widthMM, heightMM;
+    char* name;
+    HDC dc;
+    DEVMODEW dm;
+    RECT rect;
+
+    if (display)
+        name = _glfwCreateUTF8FromWideStringWin32(display->DeviceString);
+    else
+        name = _glfwCreateUTF8FromWideStringWin32(adapter->DeviceString);
+    if (!name)
+        return NULL;
+
+    ZeroMemory(&dm, sizeof(dm));
+    dm.dmSize = sizeof(dm);
+    EnumDisplaySettingsW(adapter->DeviceName, ENUM_CURRENT_SETTINGS, &dm);
+
+    dc = CreateDCW(L"DISPLAY", adapter->DeviceName, NULL, NULL);
+
+    if (IsWindows8Point1OrGreater())
+    {
+        widthMM  = GetDeviceCaps(dc, HORZSIZE);
+        heightMM = GetDeviceCaps(dc, VERTSIZE);
+    }
+    else
+    {
+        widthMM  = (int) (dm.dmPelsWidth * 25.4f / GetDeviceCaps(dc, LOGPIXELSX));
+        heightMM = (int) (dm.dmPelsHeight * 25.4f / GetDeviceCaps(dc, LOGPIXELSY));
+    }
+
+    DeleteDC(dc);
+
+    monitor = _glfwAllocMonitor(name, widthMM, heightMM);
+    _glfw_free(name);
+
+    if (adapter->StateFlags & DISPLAY_DEVICE_MODESPRUNED)
+        monitor->win32.modesPruned = GLFW_TRUE;
+
+    wcscpy(monitor->win32.adapterName, adapter->DeviceName);
+    WideCharToMultiByte(CP_UTF8, 0,
+                        adapter->DeviceName, -1,
+                        monitor->win32.publicAdapterName,
+                        sizeof(monitor->win32.publicAdapterName),
+                        NULL, NULL);
+
+    if (display)
+    {
+        wcscpy(monitor->win32.displayName, display->DeviceName);
+        WideCharToMultiByte(CP_UTF8, 0,
+                            display->DeviceName, -1,
+                            monitor->win32.publicDisplayName,
+                            sizeof(monitor->win32.publicDisplayName),
+                            NULL, NULL);
+    }
+
+    rect.left   = dm.dmPosition.x;
+    rect.top    = dm.dmPosition.y;
+    rect.right  = dm.dmPosition.x + dm.dmPelsWidth;
+    rect.bottom = dm.dmPosition.y + dm.dmPelsHeight;
+
+    EnumDisplayMonitors(NULL, &rect, monitorCallback, (LPARAM) monitor);
+    return monitor;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Poll for changes in the set of connected monitors
+//
+void _glfwPollMonitorsWin32(void)
+{
+    int i, disconnectedCount;
+    _GLFWmonitor** disconnected = NULL;
+    DWORD adapterIndex, displayIndex;
+    DISPLAY_DEVICEW adapter, display;
+    _GLFWmonitor* monitor;
+
+    disconnectedCount = _glfw.monitorCount;
+    if (disconnectedCount)
+    {
+        disconnected = _glfw_calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*));
+        memcpy(disconnected,
+               _glfw.monitors,
+               _glfw.monitorCount * sizeof(_GLFWmonitor*));
+    }
+
+    for (adapterIndex = 0;  ;  adapterIndex++)
+    {
+        int type = _GLFW_INSERT_LAST;
+
+        ZeroMemory(&adapter, sizeof(adapter));
+        adapter.cb = sizeof(adapter);
+
+        if (!EnumDisplayDevicesW(NULL, adapterIndex, &adapter, 0))
+            break;
+
+        if (!(adapter.StateFlags & DISPLAY_DEVICE_ACTIVE))
+            continue;
+
+        if (adapter.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)
+            type = _GLFW_INSERT_FIRST;
+
+        for (displayIndex = 0;  ;  displayIndex++)
+        {
+            ZeroMemory(&display, sizeof(display));
+            display.cb = sizeof(display);
+
+            if (!EnumDisplayDevicesW(adapter.DeviceName, displayIndex, &display, 0))
+                break;
+
+            if (!(display.StateFlags & DISPLAY_DEVICE_ACTIVE))
+                continue;
+
+            for (i = 0;  i < disconnectedCount;  i++)
+            {
+                if (disconnected[i] &&
+                    wcscmp(disconnected[i]->win32.displayName,
+                           display.DeviceName) == 0)
+                {
+                    disconnected[i] = NULL;
+                    // handle may have changed, update
+                    EnumDisplayMonitors(NULL, NULL, monitorCallback, (LPARAM) _glfw.monitors[i]);
+                    break;
+                }
+            }
+
+            if (i < disconnectedCount)
+                continue;
+
+            monitor = createMonitor(&adapter, &display);
+            if (!monitor)
+            {
+                _glfw_free(disconnected);
+                return;
+            }
+
+            _glfwInputMonitor(monitor, GLFW_CONNECTED, type);
+
+            type = _GLFW_INSERT_LAST;
+        }
+
+        // HACK: If an active adapter does not have any display devices
+        //       (as sometimes happens), add it directly as a monitor
+        if (displayIndex == 0)
+        {
+            for (i = 0;  i < disconnectedCount;  i++)
+            {
+                if (disconnected[i] &&
+                    wcscmp(disconnected[i]->win32.adapterName,
+                           adapter.DeviceName) == 0)
+                {
+                    disconnected[i] = NULL;
+                    break;
+                }
+            }
+
+            if (i < disconnectedCount)
+                continue;
+
+            monitor = createMonitor(&adapter, NULL);
+            if (!monitor)
+            {
+                _glfw_free(disconnected);
+                return;
+            }
+
+            _glfwInputMonitor(monitor, GLFW_CONNECTED, type);
+        }
+    }
+
+    for (i = 0;  i < disconnectedCount;  i++)
+    {
+        if (disconnected[i])
+            _glfwInputMonitor(disconnected[i], GLFW_DISCONNECTED, 0);
+    }
+
+    _glfw_free(disconnected);
+}
+
+// Change the current video mode
+//
+void _glfwSetVideoModeWin32(_GLFWmonitor* monitor, const GLFWvidmode* desired)
+{
+    GLFWvidmode current;
+    const GLFWvidmode* best;
+    DEVMODEW dm;
+    LONG result;
+
+    best = _glfwChooseVideoMode(monitor, desired);
+    _glfwGetVideoModeWin32(monitor, &current);
+    if (_glfwCompareVideoModes(&current, best) == 0)
+        return;
+
+    ZeroMemory(&dm, sizeof(dm));
+    dm.dmSize = sizeof(dm);
+    dm.dmFields           = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL |
+                            DM_DISPLAYFREQUENCY;
+    dm.dmPelsWidth        = best->width;
+    dm.dmPelsHeight       = best->height;
+    dm.dmBitsPerPel       = best->redBits + best->greenBits + best->blueBits;
+    dm.dmDisplayFrequency = best->refreshRate;
+
+    if (dm.dmBitsPerPel < 15 || dm.dmBitsPerPel >= 24)
+        dm.dmBitsPerPel = 32;
+
+    result = ChangeDisplaySettingsExW(monitor->win32.adapterName,
+                                      &dm,
+                                      NULL,
+                                      CDS_FULLSCREEN,
+                                      NULL);
+    if (result == DISP_CHANGE_SUCCESSFUL)
+        monitor->win32.modeChanged = GLFW_TRUE;
+    else
+    {
+        const char* description = "Unknown error";
+
+        if (result == DISP_CHANGE_BADDUALVIEW)
+            description = "The system uses DualView";
+        else if (result == DISP_CHANGE_BADFLAGS)
+            description = "Invalid flags";
+        else if (result == DISP_CHANGE_BADMODE)
+            description = "Graphics mode not supported";
+        else if (result == DISP_CHANGE_BADPARAM)
+            description = "Invalid parameter";
+        else if (result == DISP_CHANGE_FAILED)
+            description = "Graphics mode failed";
+        else if (result == DISP_CHANGE_NOTUPDATED)
+            description = "Failed to write to registry";
+        else if (result == DISP_CHANGE_RESTART)
+            description = "Computer restart required";
+
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Failed to set video mode: %s",
+                        description);
+    }
+}
+
+// Restore the previously saved (original) video mode
+//
+void _glfwRestoreVideoModeWin32(_GLFWmonitor* monitor)
+{
+    if (monitor->win32.modeChanged)
+    {
+        ChangeDisplaySettingsExW(monitor->win32.adapterName,
+                                 NULL, NULL, CDS_FULLSCREEN, NULL);
+        monitor->win32.modeChanged = GLFW_FALSE;
+    }
+}
+
+void _glfwGetHMONITORContentScaleWin32(HMONITOR handle, float* xscale, float* yscale)
+{
+    UINT xdpi, ydpi;
+
+    if (xscale)
+        *xscale = 0.f;
+    if (yscale)
+        *yscale = 0.f;
+
+    if (IsWindows8Point1OrGreater())
+    {
+        if (GetDpiForMonitor(handle, MDT_EFFECTIVE_DPI, &xdpi, &ydpi) != S_OK)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to query monitor DPI");
+            return;
+        }
+    }
+    else
+    {
+        const HDC dc = GetDC(NULL);
+        xdpi = GetDeviceCaps(dc, LOGPIXELSX);
+        ydpi = GetDeviceCaps(dc, LOGPIXELSY);
+        ReleaseDC(NULL, dc);
+    }
+
+    if (xscale)
+        *xscale = xdpi / (float) USER_DEFAULT_SCREEN_DPI;
+    if (yscale)
+        *yscale = ydpi / (float) USER_DEFAULT_SCREEN_DPI;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwFreeMonitorWin32(_GLFWmonitor* monitor)
+{
+}
+
+void _glfwGetMonitorPosWin32(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    DEVMODEW dm;
+    ZeroMemory(&dm, sizeof(dm));
+    dm.dmSize = sizeof(dm);
+
+    EnumDisplaySettingsExW(monitor->win32.adapterName,
+                           ENUM_CURRENT_SETTINGS,
+                           &dm,
+                           EDS_ROTATEDMODE);
+
+    if (xpos)
+        *xpos = dm.dmPosition.x;
+    if (ypos)
+        *ypos = dm.dmPosition.y;
+}
+
+void _glfwGetMonitorContentScaleWin32(_GLFWmonitor* monitor,
+                                      float* xscale, float* yscale)
+{
+    _glfwGetHMONITORContentScaleWin32(monitor->win32.handle, xscale, yscale);
+}
+
+void _glfwGetMonitorWorkareaWin32(_GLFWmonitor* monitor,
+                                  int* xpos, int* ypos,
+                                  int* width, int* height)
+{
+    MONITORINFO mi = { sizeof(mi) };
+    GetMonitorInfoW(monitor->win32.handle, &mi);
+
+    if (xpos)
+        *xpos = mi.rcWork.left;
+    if (ypos)
+        *ypos = mi.rcWork.top;
+    if (width)
+        *width = mi.rcWork.right - mi.rcWork.left;
+    if (height)
+        *height = mi.rcWork.bottom - mi.rcWork.top;
+}
+
+GLFWvidmode* _glfwGetVideoModesWin32(_GLFWmonitor* monitor, int* count)
+{
+    int modeIndex = 0, size = 0;
+    GLFWvidmode* result = NULL;
+
+    *count = 0;
+
+    for (;;)
+    {
+        int i;
+        GLFWvidmode mode;
+        DEVMODEW dm;
+
+        ZeroMemory(&dm, sizeof(dm));
+        dm.dmSize = sizeof(dm);
+
+        if (!EnumDisplaySettingsW(monitor->win32.adapterName, modeIndex, &dm))
+            break;
+
+        modeIndex++;
+
+        // Skip modes with less than 15 BPP
+        if (dm.dmBitsPerPel < 15)
+            continue;
+
+        mode.width  = dm.dmPelsWidth;
+        mode.height = dm.dmPelsHeight;
+        mode.refreshRate = dm.dmDisplayFrequency;
+        _glfwSplitBPP(dm.dmBitsPerPel,
+                      &mode.redBits,
+                      &mode.greenBits,
+                      &mode.blueBits);
+
+        for (i = 0;  i < *count;  i++)
+        {
+            if (_glfwCompareVideoModes(result + i, &mode) == 0)
+                break;
+        }
+
+        // Skip duplicate modes
+        if (i < *count)
+            continue;
+
+        if (monitor->win32.modesPruned)
+        {
+            // Skip modes not supported by the connected displays
+            if (ChangeDisplaySettingsExW(monitor->win32.adapterName,
+                                         &dm,
+                                         NULL,
+                                         CDS_TEST,
+                                         NULL) != DISP_CHANGE_SUCCESSFUL)
+            {
+                continue;
+            }
+        }
+
+        if (*count == size)
+        {
+            size += 128;
+            result = (GLFWvidmode*) _glfw_realloc(result, size * sizeof(GLFWvidmode));
+        }
+
+        (*count)++;
+        result[*count - 1] = mode;
+    }
+
+    if (!*count)
+    {
+        // HACK: Report the current mode if no valid modes were found
+        result = _glfw_calloc(1, sizeof(GLFWvidmode));
+        _glfwGetVideoModeWin32(monitor, result);
+        *count = 1;
+    }
+
+    return result;
+}
+
+GLFWbool _glfwGetVideoModeWin32(_GLFWmonitor* monitor, GLFWvidmode* mode)
+{
+    DEVMODEW dm;
+    ZeroMemory(&dm, sizeof(dm));
+    dm.dmSize = sizeof(dm);
+
+    if (!EnumDisplaySettingsW(monitor->win32.adapterName, ENUM_CURRENT_SETTINGS, &dm))
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to query display settings");
+        return GLFW_FALSE;
+    }
+
+    mode->width  = dm.dmPelsWidth;
+    mode->height = dm.dmPelsHeight;
+    mode->refreshRate = dm.dmDisplayFrequency;
+    _glfwSplitBPP(dm.dmBitsPerPel,
+                  &mode->redBits,
+                  &mode->greenBits,
+                  &mode->blueBits);
+
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwGetGammaRampWin32(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    HDC dc;
+    WORD values[3][256];
+
+    dc = CreateDCW(L"DISPLAY", monitor->win32.adapterName, NULL, NULL);
+    GetDeviceGammaRamp(dc, values);
+    DeleteDC(dc);
+
+    _glfwAllocGammaArrays(ramp, 256);
+
+    memcpy(ramp->red,   values[0], sizeof(values[0]));
+    memcpy(ramp->green, values[1], sizeof(values[1]));
+    memcpy(ramp->blue,  values[2], sizeof(values[2]));
+
+    return GLFW_TRUE;
+}
+
+void _glfwSetGammaRampWin32(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    HDC dc;
+    WORD values[3][256];
+
+    if (ramp->size != 256)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Win32: Gamma ramp size must be 256");
+        return;
+    }
+
+    memcpy(values[0], ramp->red,   sizeof(values[0]));
+    memcpy(values[1], ramp->green, sizeof(values[1]));
+    memcpy(values[2], ramp->blue,  sizeof(values[2]));
+
+    dc = CreateDCW(L"DISPLAY", monitor->win32.adapterName, NULL, NULL);
+    SetDeviceGammaRamp(dc, values);
+    DeleteDC(dc);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI const char* glfwGetWin32Adapter(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WIN32)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Win32: Platform not initialized");
+        return NULL;
+    }
+
+    return monitor->win32.publicAdapterName;
+}
+
+GLFWAPI const char* glfwGetWin32Monitor(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WIN32)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Win32: Platform not initialized");
+        return NULL;
+    }
+
+    return monitor->win32.publicDisplayName;
+}
+
+#endif // _GLFW_WIN32
+

raylib/external/glfw/src/win32_platform.h

@@ -0,0 +1,627 @@
+//========================================================================
+// GLFW 3.4 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+// We don't need all the fancy stuff
+#ifndef NOMINMAX
+ #define NOMINMAX
+#endif
+
+#ifndef VC_EXTRALEAN
+ #define VC_EXTRALEAN
+#endif
+
+#ifndef WIN32_LEAN_AND_MEAN
+ #define WIN32_LEAN_AND_MEAN
+#endif
+
+// This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
+// example to allow applications to correctly declare a GL_KHR_debug callback)
+// but windows.h assumes no one will define APIENTRY before it does
+#undef APIENTRY
+
+// GLFW on Windows is Unicode only and does not work in MBCS mode
+#ifndef UNICODE
+ #define UNICODE
+#endif
+
+// GLFW requires Windows XP or later
+#if WINVER < 0x0501
+ #undef WINVER
+ #define WINVER 0x0501
+#endif
+#if _WIN32_WINNT < 0x0501
+ #undef _WIN32_WINNT
+ #define _WIN32_WINNT 0x0501
+#endif
+
+// GLFW uses DirectInput8 interfaces
+#define DIRECTINPUT_VERSION 0x0800
+
+// GLFW uses OEM cursor resources
+#define OEMRESOURCE
+
+#include <wctype.h>
+#include <windows.h>
+#include <dinput.h>
+#include <xinput.h>
+#include <dbt.h>
+
+// HACK: Define macros that some windows.h variants don't
+#ifndef WM_MOUSEHWHEEL
+ #define WM_MOUSEHWHEEL 0x020E
+#endif
+#ifndef WM_DWMCOMPOSITIONCHANGED
+ #define WM_DWMCOMPOSITIONCHANGED 0x031E
+#endif
+#ifndef WM_DWMCOLORIZATIONCOLORCHANGED
+ #define WM_DWMCOLORIZATIONCOLORCHANGED 0x0320
+#endif
+#ifndef WM_COPYGLOBALDATA
+ #define WM_COPYGLOBALDATA 0x0049
+#endif
+#ifndef WM_UNICHAR
+ #define WM_UNICHAR 0x0109
+#endif
+#ifndef UNICODE_NOCHAR
+ #define UNICODE_NOCHAR 0xFFFF
+#endif
+#ifndef WM_DPICHANGED
+ #define WM_DPICHANGED 0x02E0
+#endif
+#ifndef GET_XBUTTON_WPARAM
+ #define GET_XBUTTON_WPARAM(w) (HIWORD(w))
+#endif
+#ifndef EDS_ROTATEDMODE
+ #define EDS_ROTATEDMODE 0x00000004
+#endif
+#ifndef DISPLAY_DEVICE_ACTIVE
+ #define DISPLAY_DEVICE_ACTIVE 0x00000001
+#endif
+#ifndef _WIN32_WINNT_WINBLUE
+ #define _WIN32_WINNT_WINBLUE 0x0603
+#endif
+#ifndef _WIN32_WINNT_WIN8
+ #define _WIN32_WINNT_WIN8 0x0602
+#endif
+#ifndef WM_GETDPISCALEDSIZE
+ #define WM_GETDPISCALEDSIZE 0x02e4
+#endif
+#ifndef USER_DEFAULT_SCREEN_DPI
+ #define USER_DEFAULT_SCREEN_DPI 96
+#endif
+#ifndef OCR_HAND
+ #define OCR_HAND 32649
+#endif
+
+#if WINVER < 0x0601
+typedef struct
+{
+    DWORD cbSize;
+    DWORD ExtStatus;
+} CHANGEFILTERSTRUCT;
+#ifndef MSGFLT_ALLOW
+ #define MSGFLT_ALLOW 1
+#endif
+#endif /*Windows 7*/
+
+#if WINVER < 0x0600
+#define DWM_BB_ENABLE 0x00000001
+#define DWM_BB_BLURREGION 0x00000002
+typedef struct
+{
+    DWORD dwFlags;
+    BOOL fEnable;
+    HRGN hRgnBlur;
+    BOOL fTransitionOnMaximized;
+} DWM_BLURBEHIND;
+#else
+ #include <dwmapi.h>
+#endif /*Windows Vista*/
+
+#ifndef DPI_ENUMS_DECLARED
+typedef enum
+{
+    PROCESS_DPI_UNAWARE = 0,
+    PROCESS_SYSTEM_DPI_AWARE = 1,
+    PROCESS_PER_MONITOR_DPI_AWARE = 2
+} PROCESS_DPI_AWARENESS;
+typedef enum
+{
+    MDT_EFFECTIVE_DPI = 0,
+    MDT_ANGULAR_DPI = 1,
+    MDT_RAW_DPI = 2,
+    MDT_DEFAULT = MDT_EFFECTIVE_DPI
+} MONITOR_DPI_TYPE;
+#endif /*DPI_ENUMS_DECLARED*/
+
+#ifndef DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2
+#define DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2 ((HANDLE) -4)
+#endif /*DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2*/
+
+// Replacement for versionhelpers.h macros, as we cannot rely on the
+// application having a correct embedded manifest
+//
+#define IsWindowsVistaOrGreater()                                     \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_VISTA),   \
+                                        LOBYTE(_WIN32_WINNT_VISTA), 0)
+#define IsWindows7OrGreater()                                         \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_WIN7),    \
+                                        LOBYTE(_WIN32_WINNT_WIN7), 0)
+#define IsWindows8OrGreater()                                         \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_WIN8),    \
+                                        LOBYTE(_WIN32_WINNT_WIN8), 0)
+#define IsWindows8Point1OrGreater()                                   \
+    _glfwIsWindowsVersionOrGreaterWin32(HIBYTE(_WIN32_WINNT_WINBLUE), \
+                                        LOBYTE(_WIN32_WINNT_WINBLUE), 0)
+
+// Windows 10 Anniversary Update
+#define _glfwIsWindows10Version1607OrGreaterWin32() \
+    _glfwIsWindows10BuildOrGreaterWin32(14393)
+// Windows 10 Creators Update
+#define _glfwIsWindows10Version1703OrGreaterWin32() \
+    _glfwIsWindows10BuildOrGreaterWin32(15063)
+
+// HACK: Define macros that some xinput.h variants don't
+#ifndef XINPUT_CAPS_WIRELESS
+ #define XINPUT_CAPS_WIRELESS 0x0002
+#endif
+#ifndef XINPUT_DEVSUBTYPE_WHEEL
+ #define XINPUT_DEVSUBTYPE_WHEEL 0x02
+#endif
+#ifndef XINPUT_DEVSUBTYPE_ARCADE_STICK
+ #define XINPUT_DEVSUBTYPE_ARCADE_STICK 0x03
+#endif
+#ifndef XINPUT_DEVSUBTYPE_FLIGHT_STICK
+ #define XINPUT_DEVSUBTYPE_FLIGHT_STICK 0x04
+#endif
+#ifndef XINPUT_DEVSUBTYPE_DANCE_PAD
+ #define XINPUT_DEVSUBTYPE_DANCE_PAD 0x05
+#endif
+#ifndef XINPUT_DEVSUBTYPE_GUITAR
+ #define XINPUT_DEVSUBTYPE_GUITAR 0x06
+#endif
+#ifndef XINPUT_DEVSUBTYPE_DRUM_KIT
+ #define XINPUT_DEVSUBTYPE_DRUM_KIT 0x08
+#endif
+#ifndef XINPUT_DEVSUBTYPE_ARCADE_PAD
+ #define XINPUT_DEVSUBTYPE_ARCADE_PAD 0x13
+#endif
+#ifndef XUSER_MAX_COUNT
+ #define XUSER_MAX_COUNT 4
+#endif
+
+// HACK: Define macros that some dinput.h variants don't
+#ifndef DIDFT_OPTIONAL
+ #define DIDFT_OPTIONAL 0x80000000
+#endif
+
+#define WGL_NUMBER_PIXEL_FORMATS_ARB 0x2000
+#define WGL_SUPPORT_OPENGL_ARB 0x2010
+#define WGL_DRAW_TO_WINDOW_ARB 0x2001
+#define WGL_PIXEL_TYPE_ARB 0x2013
+#define WGL_TYPE_RGBA_ARB 0x202b
+#define WGL_ACCELERATION_ARB 0x2003
+#define WGL_NO_ACCELERATION_ARB 0x2025
+#define WGL_RED_BITS_ARB 0x2015
+#define WGL_RED_SHIFT_ARB 0x2016
+#define WGL_GREEN_BITS_ARB 0x2017
+#define WGL_GREEN_SHIFT_ARB 0x2018
+#define WGL_BLUE_BITS_ARB 0x2019
+#define WGL_BLUE_SHIFT_ARB 0x201a
+#define WGL_ALPHA_BITS_ARB 0x201b
+#define WGL_ALPHA_SHIFT_ARB 0x201c
+#define WGL_ACCUM_BITS_ARB 0x201d
+#define WGL_ACCUM_RED_BITS_ARB 0x201e
+#define WGL_ACCUM_GREEN_BITS_ARB 0x201f
+#define WGL_ACCUM_BLUE_BITS_ARB 0x2020
+#define WGL_ACCUM_ALPHA_BITS_ARB 0x2021
+#define WGL_DEPTH_BITS_ARB 0x2022
+#define WGL_STENCIL_BITS_ARB 0x2023
+#define WGL_AUX_BUFFERS_ARB 0x2024
+#define WGL_STEREO_ARB 0x2012
+#define WGL_DOUBLE_BUFFER_ARB 0x2011
+#define WGL_SAMPLES_ARB 0x2042
+#define WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB 0x20a9
+#define WGL_CONTEXT_DEBUG_BIT_ARB 0x00000001
+#define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x00000002
+#define WGL_CONTEXT_PROFILE_MASK_ARB 0x9126
+#define WGL_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001
+#define WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002
+#define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091
+#define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092
+#define WGL_CONTEXT_FLAGS_ARB 0x2094
+#define WGL_CONTEXT_ES2_PROFILE_BIT_EXT 0x00000004
+#define WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB 0x00000004
+#define WGL_LOSE_CONTEXT_ON_RESET_ARB 0x8252
+#define WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB 0x8256
+#define WGL_NO_RESET_NOTIFICATION_ARB 0x8261
+#define WGL_CONTEXT_RELEASE_BEHAVIOR_ARB 0x2097
+#define WGL_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB 0
+#define WGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB 0x2098
+#define WGL_CONTEXT_OPENGL_NO_ERROR_ARB 0x31b3
+#define WGL_COLORSPACE_EXT 0x309d
+#define WGL_COLORSPACE_SRGB_EXT 0x3089
+
+#define ERROR_INVALID_VERSION_ARB 0x2095
+#define ERROR_INVALID_PROFILE_ARB 0x2096
+#define ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB 0x2054
+
+// xinput.dll function pointer typedefs
+typedef DWORD (WINAPI * PFN_XInputGetCapabilities)(DWORD,DWORD,XINPUT_CAPABILITIES*);
+typedef DWORD (WINAPI * PFN_XInputGetState)(DWORD,XINPUT_STATE*);
+#define XInputGetCapabilities _glfw.win32.xinput.GetCapabilities
+#define XInputGetState _glfw.win32.xinput.GetState
+
+// dinput8.dll function pointer typedefs
+typedef HRESULT (WINAPI * PFN_DirectInput8Create)(HINSTANCE,DWORD,REFIID,LPVOID*,LPUNKNOWN);
+#define DirectInput8Create _glfw.win32.dinput8.Create
+
+// user32.dll function pointer typedefs
+typedef BOOL (WINAPI * PFN_SetProcessDPIAware)(void);
+typedef BOOL (WINAPI * PFN_ChangeWindowMessageFilterEx)(HWND,UINT,DWORD,CHANGEFILTERSTRUCT*);
+typedef BOOL (WINAPI * PFN_EnableNonClientDpiScaling)(HWND);
+typedef BOOL (WINAPI * PFN_SetProcessDpiAwarenessContext)(HANDLE);
+typedef UINT (WINAPI * PFN_GetDpiForWindow)(HWND);
+typedef BOOL (WINAPI * PFN_AdjustWindowRectExForDpi)(LPRECT,DWORD,BOOL,DWORD,UINT);
+typedef int (WINAPI * PFN_GetSystemMetricsForDpi)(int,UINT);
+#define SetProcessDPIAware _glfw.win32.user32.SetProcessDPIAware_
+#define ChangeWindowMessageFilterEx _glfw.win32.user32.ChangeWindowMessageFilterEx_
+#define EnableNonClientDpiScaling _glfw.win32.user32.EnableNonClientDpiScaling_
+#define SetProcessDpiAwarenessContext _glfw.win32.user32.SetProcessDpiAwarenessContext_
+#define GetDpiForWindow _glfw.win32.user32.GetDpiForWindow_
+#define AdjustWindowRectExForDpi _glfw.win32.user32.AdjustWindowRectExForDpi_
+#define GetSystemMetricsForDpi _glfw.win32.user32.GetSystemMetricsForDpi_
+
+// dwmapi.dll function pointer typedefs
+typedef HRESULT (WINAPI * PFN_DwmIsCompositionEnabled)(BOOL*);
+typedef HRESULT (WINAPI * PFN_DwmFlush)(VOID);
+typedef HRESULT(WINAPI * PFN_DwmEnableBlurBehindWindow)(HWND,const DWM_BLURBEHIND*);
+typedef HRESULT (WINAPI * PFN_DwmGetColorizationColor)(DWORD*,BOOL*);
+#define DwmIsCompositionEnabled _glfw.win32.dwmapi.IsCompositionEnabled
+#define DwmFlush _glfw.win32.dwmapi.Flush
+#define DwmEnableBlurBehindWindow _glfw.win32.dwmapi.EnableBlurBehindWindow
+#define DwmGetColorizationColor _glfw.win32.dwmapi.GetColorizationColor
+
+// shcore.dll function pointer typedefs
+typedef HRESULT (WINAPI * PFN_SetProcessDpiAwareness)(PROCESS_DPI_AWARENESS);
+typedef HRESULT (WINAPI * PFN_GetDpiForMonitor)(HMONITOR,MONITOR_DPI_TYPE,UINT*,UINT*);
+#define SetProcessDpiAwareness _glfw.win32.shcore.SetProcessDpiAwareness_
+#define GetDpiForMonitor _glfw.win32.shcore.GetDpiForMonitor_
+
+// ntdll.dll function pointer typedefs
+typedef LONG (WINAPI * PFN_RtlVerifyVersionInfo)(OSVERSIONINFOEXW*,ULONG,ULONGLONG);
+#define RtlVerifyVersionInfo _glfw.win32.ntdll.RtlVerifyVersionInfo_
+
+// WGL extension pointer typedefs
+typedef BOOL (WINAPI * PFNWGLSWAPINTERVALEXTPROC)(int);
+typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVARBPROC)(HDC,int,int,UINT,const int*,int*);
+typedef const char* (WINAPI * PFNWGLGETEXTENSIONSSTRINGEXTPROC)(void);
+typedef const char* (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC)(HDC);
+typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSARBPROC)(HDC,HGLRC,const int*);
+#define wglSwapIntervalEXT _glfw.wgl.SwapIntervalEXT
+#define wglGetPixelFormatAttribivARB _glfw.wgl.GetPixelFormatAttribivARB
+#define wglGetExtensionsStringEXT _glfw.wgl.GetExtensionsStringEXT
+#define wglGetExtensionsStringARB _glfw.wgl.GetExtensionsStringARB
+#define wglCreateContextAttribsARB _glfw.wgl.CreateContextAttribsARB
+
+// opengl32.dll function pointer typedefs
+typedef HGLRC (WINAPI * PFN_wglCreateContext)(HDC);
+typedef BOOL (WINAPI * PFN_wglDeleteContext)(HGLRC);
+typedef PROC (WINAPI * PFN_wglGetProcAddress)(LPCSTR);
+typedef HDC (WINAPI * PFN_wglGetCurrentDC)(void);
+typedef HGLRC (WINAPI * PFN_wglGetCurrentContext)(void);
+typedef BOOL (WINAPI * PFN_wglMakeCurrent)(HDC,HGLRC);
+typedef BOOL (WINAPI * PFN_wglShareLists)(HGLRC,HGLRC);
+#define wglCreateContext _glfw.wgl.CreateContext
+#define wglDeleteContext _glfw.wgl.DeleteContext
+#define wglGetProcAddress _glfw.wgl.GetProcAddress
+#define wglGetCurrentDC _glfw.wgl.GetCurrentDC
+#define wglGetCurrentContext _glfw.wgl.GetCurrentContext
+#define wglMakeCurrent _glfw.wgl.MakeCurrent
+#define wglShareLists _glfw.wgl.ShareLists
+
+typedef VkFlags VkWin32SurfaceCreateFlagsKHR;
+
+typedef struct VkWin32SurfaceCreateInfoKHR
+{
+    VkStructureType                 sType;
+    const void*                     pNext;
+    VkWin32SurfaceCreateFlagsKHR    flags;
+    HINSTANCE                       hinstance;
+    HWND                            hwnd;
+} VkWin32SurfaceCreateInfoKHR;
+
+typedef VkResult (APIENTRY *PFN_vkCreateWin32SurfaceKHR)(VkInstance,const VkWin32SurfaceCreateInfoKHR*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceWin32PresentationSupportKHR)(VkPhysicalDevice,uint32_t);
+
+#define GLFW_WIN32_WINDOW_STATE         _GLFWwindowWin32  win32;
+#define GLFW_WIN32_LIBRARY_WINDOW_STATE _GLFWlibraryWin32 win32;
+#define GLFW_WIN32_MONITOR_STATE        _GLFWmonitorWin32 win32;
+#define GLFW_WIN32_CURSOR_STATE         _GLFWcursorWin32  win32;
+
+#define GLFW_WGL_CONTEXT_STATE          _GLFWcontextWGL wgl;
+#define GLFW_WGL_LIBRARY_CONTEXT_STATE  _GLFWlibraryWGL wgl;
+
+
+// WGL-specific per-context data
+//
+typedef struct _GLFWcontextWGL
+{
+    HDC       dc;
+    HGLRC     handle;
+    int       interval;
+} _GLFWcontextWGL;
+
+// WGL-specific global data
+//
+typedef struct _GLFWlibraryWGL
+{
+    HINSTANCE                           instance;
+    PFN_wglCreateContext                CreateContext;
+    PFN_wglDeleteContext                DeleteContext;
+    PFN_wglGetProcAddress               GetProcAddress;
+    PFN_wglGetCurrentDC                 GetCurrentDC;
+    PFN_wglGetCurrentContext            GetCurrentContext;
+    PFN_wglMakeCurrent                  MakeCurrent;
+    PFN_wglShareLists                   ShareLists;
+
+    PFNWGLSWAPINTERVALEXTPROC           SwapIntervalEXT;
+    PFNWGLGETPIXELFORMATATTRIBIVARBPROC GetPixelFormatAttribivARB;
+    PFNWGLGETEXTENSIONSSTRINGEXTPROC    GetExtensionsStringEXT;
+    PFNWGLGETEXTENSIONSSTRINGARBPROC    GetExtensionsStringARB;
+    PFNWGLCREATECONTEXTATTRIBSARBPROC   CreateContextAttribsARB;
+    GLFWbool                            EXT_swap_control;
+    GLFWbool                            EXT_colorspace;
+    GLFWbool                            ARB_multisample;
+    GLFWbool                            ARB_framebuffer_sRGB;
+    GLFWbool                            EXT_framebuffer_sRGB;
+    GLFWbool                            ARB_pixel_format;
+    GLFWbool                            ARB_create_context;
+    GLFWbool                            ARB_create_context_profile;
+    GLFWbool                            EXT_create_context_es2_profile;
+    GLFWbool                            ARB_create_context_robustness;
+    GLFWbool                            ARB_create_context_no_error;
+    GLFWbool                            ARB_context_flush_control;
+} _GLFWlibraryWGL;
+
+// Win32-specific per-window data
+//
+typedef struct _GLFWwindowWin32
+{
+    HWND                handle;
+    HICON               bigIcon;
+    HICON               smallIcon;
+
+    GLFWbool            cursorTracked;
+    GLFWbool            frameAction;
+    GLFWbool            iconified;
+    GLFWbool            maximized;
+    // Whether to enable framebuffer transparency on DWM
+    GLFWbool            transparent;
+    GLFWbool            scaleToMonitor;
+    GLFWbool            keymenu;
+    GLFWbool            showDefault;
+
+    // Cached size used to filter out duplicate events
+    int                 width, height;
+
+    // The last received cursor position, regardless of source
+    int                 lastCursorPosX, lastCursorPosY;
+    // The last received high surrogate when decoding pairs of UTF-16 messages
+    WCHAR               highSurrogate;
+} _GLFWwindowWin32;
+
+// Win32-specific global data
+//
+typedef struct _GLFWlibraryWin32
+{
+    HINSTANCE           instance;
+    HWND                helperWindowHandle;
+    ATOM                helperWindowClass;
+    ATOM                mainWindowClass;
+    HDEVNOTIFY          deviceNotificationHandle;
+    int                 acquiredMonitorCount;
+    char*               clipboardString;
+    short int           keycodes[512];
+    short int           scancodes[GLFW_KEY_LAST + 1];
+    char                keynames[GLFW_KEY_LAST + 1][5];
+    // Where to place the cursor when re-enabled
+    double              restoreCursorPosX, restoreCursorPosY;
+    // The window whose disabled cursor mode is active
+    _GLFWwindow*        disabledCursorWindow;
+    // The window the cursor is captured in
+    _GLFWwindow*        capturedCursorWindow;
+    RAWINPUT*           rawInput;
+    int                 rawInputSize;
+    UINT                mouseTrailSize;
+    // The cursor handle to use to hide the cursor (NULL or a transparent cursor)
+    HCURSOR             blankCursor;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_DirectInput8Create          Create;
+        IDirectInput8W*                 api;
+    } dinput8;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_XInputGetCapabilities       GetCapabilities;
+        PFN_XInputGetState              GetState;
+    } xinput;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_SetProcessDPIAware          SetProcessDPIAware_;
+        PFN_ChangeWindowMessageFilterEx ChangeWindowMessageFilterEx_;
+        PFN_EnableNonClientDpiScaling   EnableNonClientDpiScaling_;
+        PFN_SetProcessDpiAwarenessContext SetProcessDpiAwarenessContext_;
+        PFN_GetDpiForWindow             GetDpiForWindow_;
+        PFN_AdjustWindowRectExForDpi    AdjustWindowRectExForDpi_;
+        PFN_GetSystemMetricsForDpi      GetSystemMetricsForDpi_;
+    } user32;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_DwmIsCompositionEnabled     IsCompositionEnabled;
+        PFN_DwmFlush                    Flush;
+        PFN_DwmEnableBlurBehindWindow   EnableBlurBehindWindow;
+        PFN_DwmGetColorizationColor     GetColorizationColor;
+    } dwmapi;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_SetProcessDpiAwareness      SetProcessDpiAwareness_;
+        PFN_GetDpiForMonitor            GetDpiForMonitor_;
+    } shcore;
+
+    struct {
+        HINSTANCE                       instance;
+        PFN_RtlVerifyVersionInfo        RtlVerifyVersionInfo_;
+    } ntdll;
+} _GLFWlibraryWin32;
+
+// Win32-specific per-monitor data
+//
+typedef struct _GLFWmonitorWin32
+{
+    HMONITOR            handle;
+    // This size matches the static size of DISPLAY_DEVICE.DeviceName
+    WCHAR               adapterName[32];
+    WCHAR               displayName[32];
+    char                publicAdapterName[32];
+    char                publicDisplayName[32];
+    GLFWbool            modesPruned;
+    GLFWbool            modeChanged;
+} _GLFWmonitorWin32;
+
+// Win32-specific per-cursor data
+//
+typedef struct _GLFWcursorWin32
+{
+    HCURSOR             handle;
+} _GLFWcursorWin32;
+
+
+GLFWbool _glfwConnectWin32(int platformID, _GLFWplatform* platform);
+int _glfwInitWin32(void);
+void _glfwTerminateWin32(void);
+
+WCHAR* _glfwCreateWideStringFromUTF8Win32(const char* source);
+char* _glfwCreateUTF8FromWideStringWin32(const WCHAR* source);
+BOOL _glfwIsWindowsVersionOrGreaterWin32(WORD major, WORD minor, WORD sp);
+BOOL _glfwIsWindows10BuildOrGreaterWin32(WORD build);
+void _glfwInputErrorWin32(int error, const char* description);
+void _glfwUpdateKeyNamesWin32(void);
+
+void _glfwPollMonitorsWin32(void);
+void _glfwSetVideoModeWin32(_GLFWmonitor* monitor, const GLFWvidmode* desired);
+void _glfwRestoreVideoModeWin32(_GLFWmonitor* monitor);
+void _glfwGetHMONITORContentScaleWin32(HMONITOR handle, float* xscale, float* yscale);
+
+GLFWbool _glfwCreateWindowWin32(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
+void _glfwDestroyWindowWin32(_GLFWwindow* window);
+void _glfwSetWindowTitleWin32(_GLFWwindow* window, const char* title);
+void _glfwSetWindowIconWin32(_GLFWwindow* window, int count, const GLFWimage* images);
+void _glfwGetWindowPosWin32(_GLFWwindow* window, int* xpos, int* ypos);
+void _glfwSetWindowPosWin32(_GLFWwindow* window, int xpos, int ypos);
+void _glfwGetWindowSizeWin32(_GLFWwindow* window, int* width, int* height);
+void _glfwSetWindowSizeWin32(_GLFWwindow* window, int width, int height);
+void _glfwSetWindowSizeLimitsWin32(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+void _glfwSetWindowAspectRatioWin32(_GLFWwindow* window, int numer, int denom);
+void _glfwGetFramebufferSizeWin32(_GLFWwindow* window, int* width, int* height);
+void _glfwGetWindowFrameSizeWin32(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+void _glfwGetWindowContentScaleWin32(_GLFWwindow* window, float* xscale, float* yscale);
+void _glfwIconifyWindowWin32(_GLFWwindow* window);
+void _glfwRestoreWindowWin32(_GLFWwindow* window);
+void _glfwMaximizeWindowWin32(_GLFWwindow* window);
+void _glfwShowWindowWin32(_GLFWwindow* window);
+void _glfwHideWindowWin32(_GLFWwindow* window);
+void _glfwRequestWindowAttentionWin32(_GLFWwindow* window);
+void _glfwFocusWindowWin32(_GLFWwindow* window);
+void _glfwSetWindowMonitorWin32(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+GLFWbool _glfwWindowFocusedWin32(_GLFWwindow* window);
+GLFWbool _glfwWindowIconifiedWin32(_GLFWwindow* window);
+GLFWbool _glfwWindowVisibleWin32(_GLFWwindow* window);
+GLFWbool _glfwWindowMaximizedWin32(_GLFWwindow* window);
+GLFWbool _glfwWindowHoveredWin32(_GLFWwindow* window);
+GLFWbool _glfwFramebufferTransparentWin32(_GLFWwindow* window);
+void _glfwSetWindowResizableWin32(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowDecoratedWin32(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowFloatingWin32(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowMousePassthroughWin32(_GLFWwindow* window, GLFWbool enabled);
+float _glfwGetWindowOpacityWin32(_GLFWwindow* window);
+void _glfwSetWindowOpacityWin32(_GLFWwindow* window, float opacity);
+
+void _glfwSetRawMouseMotionWin32(_GLFWwindow *window, GLFWbool enabled);
+GLFWbool _glfwRawMouseMotionSupportedWin32(void);
+
+void _glfwPollEventsWin32(void);
+void _glfwWaitEventsWin32(void);
+void _glfwWaitEventsTimeoutWin32(double timeout);
+void _glfwPostEmptyEventWin32(void);
+
+void _glfwGetCursorPosWin32(_GLFWwindow* window, double* xpos, double* ypos);
+void _glfwSetCursorPosWin32(_GLFWwindow* window, double xpos, double ypos);
+void _glfwSetCursorModeWin32(_GLFWwindow* window, int mode);
+const char* _glfwGetScancodeNameWin32(int scancode);
+int _glfwGetKeyScancodeWin32(int key);
+GLFWbool _glfwCreateCursorWin32(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
+GLFWbool _glfwCreateStandardCursorWin32(_GLFWcursor* cursor, int shape);
+void _glfwDestroyCursorWin32(_GLFWcursor* cursor);
+void _glfwSetCursorWin32(_GLFWwindow* window, _GLFWcursor* cursor);
+void _glfwSetClipboardStringWin32(const char* string);
+const char* _glfwGetClipboardStringWin32(void);
+
+EGLenum _glfwGetEGLPlatformWin32(EGLint** attribs);
+EGLNativeDisplayType _glfwGetEGLNativeDisplayWin32(void);
+EGLNativeWindowType _glfwGetEGLNativeWindowWin32(_GLFWwindow* window);
+
+void _glfwGetRequiredInstanceExtensionsWin32(char** extensions);
+GLFWbool _glfwGetPhysicalDevicePresentationSupportWin32(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+VkResult _glfwCreateWindowSurfaceWin32(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+
+void _glfwFreeMonitorWin32(_GLFWmonitor* monitor);
+void _glfwGetMonitorPosWin32(_GLFWmonitor* monitor, int* xpos, int* ypos);
+void _glfwGetMonitorContentScaleWin32(_GLFWmonitor* monitor, float* xscale, float* yscale);
+void _glfwGetMonitorWorkareaWin32(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+GLFWvidmode* _glfwGetVideoModesWin32(_GLFWmonitor* monitor, int* count);
+GLFWbool _glfwGetVideoModeWin32(_GLFWmonitor* monitor, GLFWvidmode* mode);
+GLFWbool _glfwGetGammaRampWin32(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
+void _glfwSetGammaRampWin32(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+
+GLFWbool _glfwInitJoysticksWin32(void);
+void _glfwTerminateJoysticksWin32(void);
+GLFWbool _glfwPollJoystickWin32(_GLFWjoystick* js, int mode);
+const char* _glfwGetMappingNameWin32(void);
+void _glfwUpdateGamepadGUIDWin32(char* guid);
+
+GLFWbool _glfwInitWGL(void);
+void _glfwTerminateWGL(void);
+GLFWbool _glfwCreateContextWGL(_GLFWwindow* window,
+                               const _GLFWctxconfig* ctxconfig,
+                               const _GLFWfbconfig* fbconfig);
+

raylib/external/glfw/src/win32_thread.c

@@ -0,0 +1,100 @@
+//========================================================================
+// GLFW 3.4 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_WIN32_THREAD)
+
+#include <assert.h>
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwPlatformCreateTls(_GLFWtls* tls)
+{
+    assert(tls->win32.allocated == GLFW_FALSE);
+
+    tls->win32.index = TlsAlloc();
+    if (tls->win32.index == TLS_OUT_OF_INDEXES)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Win32: Failed to allocate TLS index");
+        return GLFW_FALSE;
+    }
+
+    tls->win32.allocated = GLFW_TRUE;
+    return GLFW_TRUE;
+}
+
+void _glfwPlatformDestroyTls(_GLFWtls* tls)
+{
+    if (tls->win32.allocated)
+        TlsFree(tls->win32.index);
+    memset(tls, 0, sizeof(_GLFWtls));
+}
+
+void* _glfwPlatformGetTls(_GLFWtls* tls)
+{
+    assert(tls->win32.allocated == GLFW_TRUE);
+    return TlsGetValue(tls->win32.index);
+}
+
+void _glfwPlatformSetTls(_GLFWtls* tls, void* value)
+{
+    assert(tls->win32.allocated == GLFW_TRUE);
+    TlsSetValue(tls->win32.index, value);
+}
+
+GLFWbool _glfwPlatformCreateMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->win32.allocated == GLFW_FALSE);
+    InitializeCriticalSection(&mutex->win32.section);
+    return mutex->win32.allocated = GLFW_TRUE;
+}
+
+void _glfwPlatformDestroyMutex(_GLFWmutex* mutex)
+{
+    if (mutex->win32.allocated)
+        DeleteCriticalSection(&mutex->win32.section);
+    memset(mutex, 0, sizeof(_GLFWmutex));
+}
+
+void _glfwPlatformLockMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->win32.allocated == GLFW_TRUE);
+    EnterCriticalSection(&mutex->win32.section);
+}
+
+void _glfwPlatformUnlockMutex(_GLFWmutex* mutex)
+{
+    assert(mutex->win32.allocated == GLFW_TRUE);
+    LeaveCriticalSection(&mutex->win32.section);
+}
+
+#endif // GLFW_BUILD_WIN32_THREAD
+

raylib/external/glfw/src/win32_thread.h

@@ -0,0 +1,53 @@
+//========================================================================
+// GLFW 3.4 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+// This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
+// example to allow applications to correctly declare a GL_KHR_debug callback)
+// but windows.h assumes no one will define APIENTRY before it does
+#undef APIENTRY
+
+#include <windows.h>
+
+#define GLFW_WIN32_TLS_STATE            _GLFWtlsWin32     win32;
+#define GLFW_WIN32_MUTEX_STATE          _GLFWmutexWin32   win32;
+
+// Win32-specific thread local storage data
+//
+typedef struct _GLFWtlsWin32
+{
+    GLFWbool            allocated;
+    DWORD               index;
+} _GLFWtlsWin32;
+
+// Win32-specific mutex data
+//
+typedef struct _GLFWmutexWin32
+{
+    GLFWbool            allocated;
+    CRITICAL_SECTION    section;
+} _GLFWmutexWin32;
+

raylib/external/glfw/src/win32_time.c

@@ -0,0 +1,54 @@
+//========================================================================
+// GLFW 3.4 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(GLFW_BUILD_WIN32_TIMER)
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwPlatformInitTimer(void)
+{
+    QueryPerformanceFrequency((LARGE_INTEGER*) &_glfw.timer.win32.frequency);
+}
+
+uint64_t _glfwPlatformGetTimerValue(void)
+{
+    uint64_t value;
+    QueryPerformanceCounter((LARGE_INTEGER*) &value);
+    return value;
+}
+
+uint64_t _glfwPlatformGetTimerFrequency(void)
+{
+    return _glfw.timer.win32.frequency;
+}
+
+#endif // GLFW_BUILD_WIN32_TIMER
+

raylib/external/glfw/src/win32_time.h

@@ -0,0 +1,43 @@
+//========================================================================
+// GLFW 3.4 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+// This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
+// example to allow applications to correctly declare a GL_KHR_debug callback)
+// but windows.h assumes no one will define APIENTRY before it does
+#undef APIENTRY
+
+#include <windows.h>
+
+#define GLFW_WIN32_LIBRARY_TIMER_STATE  _GLFWtimerWin32   win32;
+
+// Win32-specific global timer data
+//
+typedef struct _GLFWtimerWin32
+{
+    uint64_t            frequency;
+} _GLFWtimerWin32;
+

raylib/external/glfw/src/wl_monitor.c

@@ -0,0 +1,274 @@
+//========================================================================
+// GLFW 3.4 Wayland - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_WAYLAND)
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <math.h>
+
+#include "wayland-client-protocol.h"
+
+
+static void outputHandleGeometry(void* userData,
+                                 struct wl_output* output,
+                                 int32_t x,
+                                 int32_t y,
+                                 int32_t physicalWidth,
+                                 int32_t physicalHeight,
+                                 int32_t subpixel,
+                                 const char* make,
+                                 const char* model,
+                                 int32_t transform)
+{
+    struct _GLFWmonitor* monitor = userData;
+
+    monitor->wl.x = x;
+    monitor->wl.y = y;
+    monitor->widthMM = physicalWidth;
+    monitor->heightMM = physicalHeight;
+
+    if (strlen(monitor->name) == 0)
+        snprintf(monitor->name, sizeof(monitor->name), "%s %s", make, model);
+}
+
+static void outputHandleMode(void* userData,
+                             struct wl_output* output,
+                             uint32_t flags,
+                             int32_t width,
+                             int32_t height,
+                             int32_t refresh)
+{
+    struct _GLFWmonitor* monitor = userData;
+    GLFWvidmode mode;
+
+    mode.width = width;
+    mode.height = height;
+    mode.redBits = 8;
+    mode.greenBits = 8;
+    mode.blueBits = 8;
+    mode.refreshRate = (int) round(refresh / 1000.0);
+
+    monitor->modeCount++;
+    monitor->modes =
+        _glfw_realloc(monitor->modes, monitor->modeCount * sizeof(GLFWvidmode));
+    monitor->modes[monitor->modeCount - 1] = mode;
+
+    if (flags & WL_OUTPUT_MODE_CURRENT)
+        monitor->wl.currentMode = monitor->modeCount - 1;
+}
+
+static void outputHandleDone(void* userData, struct wl_output* output)
+{
+    struct _GLFWmonitor* monitor = userData;
+
+    if (monitor->widthMM <= 0 || monitor->heightMM <= 0)
+    {
+        // If Wayland does not provide a physical size, assume the default 96 DPI
+        const GLFWvidmode* mode = &monitor->modes[monitor->wl.currentMode];
+        monitor->widthMM  = (int) (mode->width * 25.4f / 96.f);
+        monitor->heightMM = (int) (mode->height * 25.4f / 96.f);
+    }
+
+    for (int i = 0; i < _glfw.monitorCount; i++)
+    {
+        if (_glfw.monitors[i] == monitor)
+            return;
+    }
+
+    _glfwInputMonitor(monitor, GLFW_CONNECTED, _GLFW_INSERT_LAST);
+}
+
+static void outputHandleScale(void* userData,
+                              struct wl_output* output,
+                              int32_t factor)
+{
+    struct _GLFWmonitor* monitor = userData;
+
+    monitor->wl.scale = factor;
+
+    for (_GLFWwindow* window = _glfw.windowListHead; window; window = window->next)
+    {
+        for (size_t i = 0; i < window->wl.outputScaleCount; i++)
+        {
+            if (window->wl.outputScales[i].output == monitor->wl.output)
+            {
+                window->wl.outputScales[i].factor = monitor->wl.scale;
+                _glfwUpdateBufferScaleFromOutputsWayland(window);
+                break;
+            }
+        }
+    }
+}
+
+void outputHandleName(void* userData, struct wl_output* wl_output, const char* name)
+{
+    struct _GLFWmonitor* monitor = userData;
+
+    strncpy(monitor->name, name, sizeof(monitor->name) - 1);
+}
+
+void outputHandleDescription(void* userData,
+                             struct wl_output* wl_output,
+                             const char* description)
+{
+}
+
+static const struct wl_output_listener outputListener =
+{
+    outputHandleGeometry,
+    outputHandleMode,
+    outputHandleDone,
+    outputHandleScale,
+    outputHandleName,
+    outputHandleDescription,
+};
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwAddOutputWayland(uint32_t name, uint32_t version)
+{
+    if (version < 2)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "Wayland: Unsupported output interface version");
+        return;
+    }
+
+    version = _glfw_min(version, WL_OUTPUT_NAME_SINCE_VERSION);
+
+    struct wl_output* output = wl_registry_bind(_glfw.wl.registry,
+                                                name,
+                                                &wl_output_interface,
+                                                version);
+    if (!output)
+        return;
+
+    // The actual name of this output will be set in the geometry handler
+    _GLFWmonitor* monitor = _glfwAllocMonitor("", 0, 0);
+    monitor->wl.scale = 1;
+    monitor->wl.output = output;
+    monitor->wl.name = name;
+
+    wl_proxy_set_tag((struct wl_proxy*) output, &_glfw.wl.tag);
+    wl_output_add_listener(output, &outputListener, monitor);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwFreeMonitorWayland(_GLFWmonitor* monitor)
+{
+    if (monitor->wl.output)
+        wl_output_destroy(monitor->wl.output);
+}
+
+void _glfwGetMonitorPosWayland(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    if (xpos)
+        *xpos = monitor->wl.x;
+    if (ypos)
+        *ypos = monitor->wl.y;
+}
+
+void _glfwGetMonitorContentScaleWayland(_GLFWmonitor* monitor,
+                                        float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = (float) monitor->wl.scale;
+    if (yscale)
+        *yscale = (float) monitor->wl.scale;
+}
+
+void _glfwGetMonitorWorkareaWayland(_GLFWmonitor* monitor,
+                                    int* xpos, int* ypos,
+                                    int* width, int* height)
+{
+    if (xpos)
+        *xpos = monitor->wl.x;
+    if (ypos)
+        *ypos = monitor->wl.y;
+    if (width)
+        *width = monitor->modes[monitor->wl.currentMode].width;
+    if (height)
+        *height = monitor->modes[monitor->wl.currentMode].height;
+}
+
+GLFWvidmode* _glfwGetVideoModesWayland(_GLFWmonitor* monitor, int* found)
+{
+    *found = monitor->modeCount;
+    return monitor->modes;
+}
+
+GLFWbool _glfwGetVideoModeWayland(_GLFWmonitor* monitor, GLFWvidmode* mode)
+{
+    *mode = monitor->modes[monitor->wl.currentMode];
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwGetGammaRampWayland(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Wayland: Gamma ramp access is not available");
+    return GLFW_FALSE;
+}
+
+void _glfwSetGammaRampWayland(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    _glfwInputError(GLFW_FEATURE_UNAVAILABLE,
+                    "Wayland: Gamma ramp access is not available");
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI struct wl_output* glfwGetWaylandMonitor(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_WAYLAND)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "Wayland: Platform not initialized");
+        return NULL;
+    }
+
+    return monitor->wl.output;
+}
+
+#endif // _GLFW_WAYLAND
+

raylib/external/glfw/src/wl_platform.h

@@ -0,0 +1,691 @@
+//========================================================================
+// GLFW 3.4 Wayland - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include <wayland-client-core.h>
+#include <xkbcommon/xkbcommon.h>
+#include <xkbcommon/xkbcommon-compose.h>
+
+#include <stdbool.h>
+
+typedef VkFlags VkWaylandSurfaceCreateFlagsKHR;
+
+typedef struct VkWaylandSurfaceCreateInfoKHR
+{
+    VkStructureType                 sType;
+    const void*                     pNext;
+    VkWaylandSurfaceCreateFlagsKHR  flags;
+    struct wl_display*              display;
+    struct wl_surface*              surface;
+} VkWaylandSurfaceCreateInfoKHR;
+
+typedef VkResult (APIENTRY *PFN_vkCreateWaylandSurfaceKHR)(VkInstance,const VkWaylandSurfaceCreateInfoKHR*,const VkAllocationCallbacks*,VkSurfaceKHR*);
+typedef VkBool32 (APIENTRY *PFN_vkGetPhysicalDeviceWaylandPresentationSupportKHR)(VkPhysicalDevice,uint32_t,struct wl_display*);
+
+#include "xkb_unicode.h"
+#include "posix_poll.h"
+
+typedef int (* PFN_wl_display_flush)(struct wl_display* display);
+typedef void (* PFN_wl_display_cancel_read)(struct wl_display* display);
+typedef int (* PFN_wl_display_dispatch_pending)(struct wl_display* display);
+typedef int (* PFN_wl_display_read_events)(struct wl_display* display);
+typedef struct wl_display* (* PFN_wl_display_connect)(const char*);
+typedef void (* PFN_wl_display_disconnect)(struct wl_display*);
+typedef int (* PFN_wl_display_roundtrip)(struct wl_display*);
+typedef int (* PFN_wl_display_get_fd)(struct wl_display*);
+typedef int (* PFN_wl_display_prepare_read)(struct wl_display*);
+typedef void (* PFN_wl_proxy_marshal)(struct wl_proxy*,uint32_t,...);
+typedef int (* PFN_wl_proxy_add_listener)(struct wl_proxy*,void(**)(void),void*);
+typedef void (* PFN_wl_proxy_destroy)(struct wl_proxy*);
+typedef struct wl_proxy* (* PFN_wl_proxy_marshal_constructor)(struct wl_proxy*,uint32_t,const struct wl_interface*,...);
+typedef struct wl_proxy* (* PFN_wl_proxy_marshal_constructor_versioned)(struct wl_proxy*,uint32_t,const struct wl_interface*,uint32_t,...);
+typedef void* (* PFN_wl_proxy_get_user_data)(struct wl_proxy*);
+typedef void (* PFN_wl_proxy_set_user_data)(struct wl_proxy*,void*);
+typedef void (* PFN_wl_proxy_set_tag)(struct wl_proxy*,const char*const*);
+typedef const char* const* (* PFN_wl_proxy_get_tag)(struct wl_proxy*);
+typedef uint32_t (* PFN_wl_proxy_get_version)(struct wl_proxy*);
+typedef struct wl_proxy* (* PFN_wl_proxy_marshal_flags)(struct wl_proxy*,uint32_t,const struct wl_interface*,uint32_t,uint32_t,...);
+#define wl_display_flush _glfw.wl.client.display_flush
+#define wl_display_cancel_read _glfw.wl.client.display_cancel_read
+#define wl_display_dispatch_pending _glfw.wl.client.display_dispatch_pending
+#define wl_display_read_events _glfw.wl.client.display_read_events
+#define wl_display_disconnect _glfw.wl.client.display_disconnect
+#define wl_display_roundtrip _glfw.wl.client.display_roundtrip
+#define wl_display_get_fd _glfw.wl.client.display_get_fd
+#define wl_display_prepare_read _glfw.wl.client.display_prepare_read
+#define wl_proxy_marshal _glfw.wl.client.proxy_marshal
+#define wl_proxy_add_listener _glfw.wl.client.proxy_add_listener
+#define wl_proxy_destroy _glfw.wl.client.proxy_destroy
+#define wl_proxy_marshal_constructor _glfw.wl.client.proxy_marshal_constructor
+#define wl_proxy_marshal_constructor_versioned _glfw.wl.client.proxy_marshal_constructor_versioned
+#define wl_proxy_get_user_data _glfw.wl.client.proxy_get_user_data
+#define wl_proxy_set_user_data _glfw.wl.client.proxy_set_user_data
+#define wl_proxy_get_tag _glfw.wl.client.proxy_get_tag
+#define wl_proxy_set_tag _glfw.wl.client.proxy_set_tag
+#define wl_proxy_get_version _glfw.wl.client.proxy_get_version
+#define wl_proxy_marshal_flags _glfw.wl.client.proxy_marshal_flags
+
+struct wl_shm;
+struct wl_output;
+
+#define wl_display_interface _glfw_wl_display_interface
+#define wl_subcompositor_interface _glfw_wl_subcompositor_interface
+#define wl_compositor_interface _glfw_wl_compositor_interface
+#define wl_shm_interface _glfw_wl_shm_interface
+#define wl_data_device_manager_interface _glfw_wl_data_device_manager_interface
+#define wl_shell_interface _glfw_wl_shell_interface
+#define wl_buffer_interface _glfw_wl_buffer_interface
+#define wl_callback_interface _glfw_wl_callback_interface
+#define wl_data_device_interface _glfw_wl_data_device_interface
+#define wl_data_offer_interface _glfw_wl_data_offer_interface
+#define wl_data_source_interface _glfw_wl_data_source_interface
+#define wl_keyboard_interface _glfw_wl_keyboard_interface
+#define wl_output_interface _glfw_wl_output_interface
+#define wl_pointer_interface _glfw_wl_pointer_interface
+#define wl_region_interface _glfw_wl_region_interface
+#define wl_registry_interface _glfw_wl_registry_interface
+#define wl_seat_interface _glfw_wl_seat_interface
+#define wl_shell_surface_interface _glfw_wl_shell_surface_interface
+#define wl_shm_pool_interface _glfw_wl_shm_pool_interface
+#define wl_subsurface_interface _glfw_wl_subsurface_interface
+#define wl_surface_interface _glfw_wl_surface_interface
+#define wl_touch_interface _glfw_wl_touch_interface
+#define zwp_idle_inhibitor_v1_interface _glfw_zwp_idle_inhibitor_v1_interface
+#define zwp_idle_inhibit_manager_v1_interface _glfw_zwp_idle_inhibit_manager_v1_interface
+#define zwp_confined_pointer_v1_interface _glfw_zwp_confined_pointer_v1_interface
+#define zwp_locked_pointer_v1_interface _glfw_zwp_locked_pointer_v1_interface
+#define zwp_pointer_constraints_v1_interface _glfw_zwp_pointer_constraints_v1_interface
+#define zwp_relative_pointer_v1_interface _glfw_zwp_relative_pointer_v1_interface
+#define zwp_relative_pointer_manager_v1_interface _glfw_zwp_relative_pointer_manager_v1_interface
+#define wp_viewport_interface _glfw_wp_viewport_interface
+#define wp_viewporter_interface _glfw_wp_viewporter_interface
+#define xdg_toplevel_interface _glfw_xdg_toplevel_interface
+#define zxdg_toplevel_decoration_v1_interface _glfw_zxdg_toplevel_decoration_v1_interface
+#define zxdg_decoration_manager_v1_interface _glfw_zxdg_decoration_manager_v1_interface
+#define xdg_popup_interface _glfw_xdg_popup_interface
+#define xdg_positioner_interface _glfw_xdg_positioner_interface
+#define xdg_surface_interface _glfw_xdg_surface_interface
+#define xdg_toplevel_interface _glfw_xdg_toplevel_interface
+#define xdg_wm_base_interface _glfw_xdg_wm_base_interface
+#define xdg_activation_v1_interface _glfw_xdg_activation_v1_interface
+#define xdg_activation_token_v1_interface _glfw_xdg_activation_token_v1_interface
+#define wl_surface_interface _glfw_wl_surface_interface
+#define wp_fractional_scale_v1_interface _glfw_wp_fractional_scale_v1_interface
+
+#define GLFW_WAYLAND_WINDOW_STATE         _GLFWwindowWayland  wl;
+#define GLFW_WAYLAND_LIBRARY_WINDOW_STATE _GLFWlibraryWayland wl;
+#define GLFW_WAYLAND_MONITOR_STATE        _GLFWmonitorWayland wl;
+#define GLFW_WAYLAND_CURSOR_STATE         _GLFWcursorWayland  wl;
+
+struct wl_cursor_image {
+    uint32_t width;
+    uint32_t height;
+    uint32_t hotspot_x;
+    uint32_t hotspot_y;
+    uint32_t delay;
+};
+struct wl_cursor {
+    unsigned int image_count;
+    struct wl_cursor_image** images;
+    char* name;
+};
+typedef struct wl_cursor_theme* (* PFN_wl_cursor_theme_load)(const char*, int, struct wl_shm*);
+typedef void (* PFN_wl_cursor_theme_destroy)(struct wl_cursor_theme*);
+typedef struct wl_cursor* (* PFN_wl_cursor_theme_get_cursor)(struct wl_cursor_theme*, const char*);
+typedef struct wl_buffer* (* PFN_wl_cursor_image_get_buffer)(struct wl_cursor_image*);
+#define wl_cursor_theme_load _glfw.wl.cursor.theme_load
+#define wl_cursor_theme_destroy _glfw.wl.cursor.theme_destroy
+#define wl_cursor_theme_get_cursor _glfw.wl.cursor.theme_get_cursor
+#define wl_cursor_image_get_buffer _glfw.wl.cursor.image_get_buffer
+
+typedef struct wl_egl_window* (* PFN_wl_egl_window_create)(struct wl_surface*, int, int);
+typedef void (* PFN_wl_egl_window_destroy)(struct wl_egl_window*);
+typedef void (* PFN_wl_egl_window_resize)(struct wl_egl_window*, int, int, int, int);
+#define wl_egl_window_create _glfw.wl.egl.window_create
+#define wl_egl_window_destroy _glfw.wl.egl.window_destroy
+#define wl_egl_window_resize _glfw.wl.egl.window_resize
+
+typedef struct xkb_context* (* PFN_xkb_context_new)(enum xkb_context_flags);
+typedef void (* PFN_xkb_context_unref)(struct xkb_context*);
+typedef struct xkb_keymap* (* PFN_xkb_keymap_new_from_string)(struct xkb_context*, const char*, enum xkb_keymap_format, enum xkb_keymap_compile_flags);
+typedef void (* PFN_xkb_keymap_unref)(struct xkb_keymap*);
+typedef xkb_mod_index_t (* PFN_xkb_keymap_mod_get_index)(struct xkb_keymap*, const char*);
+typedef int (* PFN_xkb_keymap_key_repeats)(struct xkb_keymap*, xkb_keycode_t);
+typedef int (* PFN_xkb_keymap_key_get_syms_by_level)(struct xkb_keymap*,xkb_keycode_t,xkb_layout_index_t,xkb_level_index_t,const xkb_keysym_t**);
+typedef struct xkb_state* (* PFN_xkb_state_new)(struct xkb_keymap*);
+typedef void (* PFN_xkb_state_unref)(struct xkb_state*);
+typedef int (* PFN_xkb_state_key_get_syms)(struct xkb_state*, xkb_keycode_t, const xkb_keysym_t**);
+typedef enum xkb_state_component (* PFN_xkb_state_update_mask)(struct xkb_state*, xkb_mod_mask_t, xkb_mod_mask_t, xkb_mod_mask_t, xkb_layout_index_t, xkb_layout_index_t, xkb_layout_index_t);
+typedef xkb_layout_index_t (* PFN_xkb_state_key_get_layout)(struct xkb_state*,xkb_keycode_t);
+typedef int (* PFN_xkb_state_mod_index_is_active)(struct xkb_state*,xkb_mod_index_t,enum xkb_state_component);
+#define xkb_context_new _glfw.wl.xkb.context_new
+#define xkb_context_unref _glfw.wl.xkb.context_unref
+#define xkb_keymap_new_from_string _glfw.wl.xkb.keymap_new_from_string
+#define xkb_keymap_unref _glfw.wl.xkb.keymap_unref
+#define xkb_keymap_mod_get_index _glfw.wl.xkb.keymap_mod_get_index
+#define xkb_keymap_key_repeats _glfw.wl.xkb.keymap_key_repeats
+#define xkb_keymap_key_get_syms_by_level _glfw.wl.xkb.keymap_key_get_syms_by_level
+#define xkb_state_new _glfw.wl.xkb.state_new
+#define xkb_state_unref _glfw.wl.xkb.state_unref
+#define xkb_state_key_get_syms _glfw.wl.xkb.state_key_get_syms
+#define xkb_state_update_mask _glfw.wl.xkb.state_update_mask
+#define xkb_state_key_get_layout _glfw.wl.xkb.state_key_get_layout
+#define xkb_state_mod_index_is_active _glfw.wl.xkb.state_mod_index_is_active
+
+typedef struct xkb_compose_table* (* PFN_xkb_compose_table_new_from_locale)(struct xkb_context*, const char*, enum xkb_compose_compile_flags);
+typedef void (* PFN_xkb_compose_table_unref)(struct xkb_compose_table*);
+typedef struct xkb_compose_state* (* PFN_xkb_compose_state_new)(struct xkb_compose_table*, enum xkb_compose_state_flags);
+typedef void (* PFN_xkb_compose_state_unref)(struct xkb_compose_state*);
+typedef enum xkb_compose_feed_result (* PFN_xkb_compose_state_feed)(struct xkb_compose_state*, xkb_keysym_t);
+typedef enum xkb_compose_status (* PFN_xkb_compose_state_get_status)(struct xkb_compose_state*);
+typedef xkb_keysym_t (* PFN_xkb_compose_state_get_one_sym)(struct xkb_compose_state*);
+#define xkb_compose_table_new_from_locale _glfw.wl.xkb.compose_table_new_from_locale
+#define xkb_compose_table_unref _glfw.wl.xkb.compose_table_unref
+#define xkb_compose_state_new _glfw.wl.xkb.compose_state_new
+#define xkb_compose_state_unref _glfw.wl.xkb.compose_state_unref
+#define xkb_compose_state_feed _glfw.wl.xkb.compose_state_feed
+#define xkb_compose_state_get_status _glfw.wl.xkb.compose_state_get_status
+#define xkb_compose_state_get_one_sym _glfw.wl.xkb.compose_state_get_one_sym
+
+struct libdecor;
+struct libdecor_frame;
+struct libdecor_state;
+struct libdecor_configuration;
+
+enum libdecor_error
+{
+	LIBDECOR_ERROR_COMPOSITOR_INCOMPATIBLE,
+	LIBDECOR_ERROR_INVALID_FRAME_CONFIGURATION,
+};
+
+enum libdecor_window_state
+{
+	LIBDECOR_WINDOW_STATE_NONE = 0,
+	LIBDECOR_WINDOW_STATE_ACTIVE = 1,
+	LIBDECOR_WINDOW_STATE_MAXIMIZED = 2,
+	LIBDECOR_WINDOW_STATE_FULLSCREEN = 4,
+	LIBDECOR_WINDOW_STATE_TILED_LEFT = 8,
+	LIBDECOR_WINDOW_STATE_TILED_RIGHT = 16,
+	LIBDECOR_WINDOW_STATE_TILED_TOP = 32,
+	LIBDECOR_WINDOW_STATE_TILED_BOTTOM = 64
+};
+
+enum libdecor_capabilities
+{
+	LIBDECOR_ACTION_MOVE = 1,
+	LIBDECOR_ACTION_RESIZE = 2,
+	LIBDECOR_ACTION_MINIMIZE = 4,
+	LIBDECOR_ACTION_FULLSCREEN = 8,
+	LIBDECOR_ACTION_CLOSE = 16
+};
+
+struct libdecor_interface
+{
+	void (* error)(struct libdecor*,enum libdecor_error,const char*);
+	void (* reserved0)(void);
+	void (* reserved1)(void);
+	void (* reserved2)(void);
+	void (* reserved3)(void);
+	void (* reserved4)(void);
+	void (* reserved5)(void);
+	void (* reserved6)(void);
+	void (* reserved7)(void);
+	void (* reserved8)(void);
+	void (* reserved9)(void);
+};
+
+struct libdecor_frame_interface
+{
+	void (* configure)(struct libdecor_frame*,struct libdecor_configuration*,void*);
+	void (* close)(struct libdecor_frame*,void*);
+	void (* commit)(struct libdecor_frame*,void*);
+	void (* dismiss_popup)(struct libdecor_frame*,const char*,void*);
+	void (* reserved0)(void);
+	void (* reserved1)(void);
+	void (* reserved2)(void);
+	void (* reserved3)(void);
+	void (* reserved4)(void);
+	void (* reserved5)(void);
+	void (* reserved6)(void);
+	void (* reserved7)(void);
+	void (* reserved8)(void);
+	void (* reserved9)(void);
+};
+
+typedef struct libdecor* (* PFN_libdecor_new)(struct wl_display*,const struct libdecor_interface*);
+typedef void (* PFN_libdecor_unref)(struct libdecor*);
+typedef int (* PFN_libdecor_get_fd)(struct libdecor*);
+typedef int (* PFN_libdecor_dispatch)(struct libdecor*,int);
+typedef struct libdecor_frame* (* PFN_libdecor_decorate)(struct libdecor*,struct wl_surface*,const struct libdecor_frame_interface*,void*);
+typedef void (* PFN_libdecor_frame_unref)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_set_app_id)(struct libdecor_frame*,const char*);
+typedef void (* PFN_libdecor_frame_set_title)(struct libdecor_frame*,const char*);
+typedef void (* PFN_libdecor_frame_set_minimized)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_set_fullscreen)(struct libdecor_frame*,struct wl_output*);
+typedef void (* PFN_libdecor_frame_unset_fullscreen)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_map)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_commit)(struct libdecor_frame*,struct libdecor_state*,struct libdecor_configuration*);
+typedef void (* PFN_libdecor_frame_set_min_content_size)(struct libdecor_frame*,int,int);
+typedef void (* PFN_libdecor_frame_set_max_content_size)(struct libdecor_frame*,int,int);
+typedef void (* PFN_libdecor_frame_set_maximized)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_unset_maximized)(struct libdecor_frame*);
+typedef void (* PFN_libdecor_frame_set_capabilities)(struct libdecor_frame*,enum libdecor_capabilities);
+typedef void (* PFN_libdecor_frame_unset_capabilities)(struct libdecor_frame*,enum libdecor_capabilities);
+typedef void (* PFN_libdecor_frame_set_visibility)(struct libdecor_frame*,bool visible);
+typedef struct xdg_toplevel* (* PFN_libdecor_frame_get_xdg_toplevel)(struct libdecor_frame*);
+typedef bool (* PFN_libdecor_configuration_get_content_size)(struct libdecor_configuration*,struct libdecor_frame*,int*,int*);
+typedef bool (* PFN_libdecor_configuration_get_window_state)(struct libdecor_configuration*,enum libdecor_window_state*);
+typedef struct libdecor_state* (* PFN_libdecor_state_new)(int,int);
+typedef void (* PFN_libdecor_state_free)(struct libdecor_state*);
+#define libdecor_new _glfw.wl.libdecor.libdecor_new_
+#define libdecor_unref _glfw.wl.libdecor.libdecor_unref_
+#define libdecor_get_fd _glfw.wl.libdecor.libdecor_get_fd_
+#define libdecor_dispatch _glfw.wl.libdecor.libdecor_dispatch_
+#define libdecor_decorate _glfw.wl.libdecor.libdecor_decorate_
+#define libdecor_frame_unref _glfw.wl.libdecor.libdecor_frame_unref_
+#define libdecor_frame_set_app_id _glfw.wl.libdecor.libdecor_frame_set_app_id_
+#define libdecor_frame_set_title _glfw.wl.libdecor.libdecor_frame_set_title_
+#define libdecor_frame_set_minimized _glfw.wl.libdecor.libdecor_frame_set_minimized_
+#define libdecor_frame_set_fullscreen _glfw.wl.libdecor.libdecor_frame_set_fullscreen_
+#define libdecor_frame_unset_fullscreen _glfw.wl.libdecor.libdecor_frame_unset_fullscreen_
+#define libdecor_frame_map _glfw.wl.libdecor.libdecor_frame_map_
+#define libdecor_frame_commit _glfw.wl.libdecor.libdecor_frame_commit_
+#define libdecor_frame_set_min_content_size _glfw.wl.libdecor.libdecor_frame_set_min_content_size_
+#define libdecor_frame_set_max_content_size _glfw.wl.libdecor.libdecor_frame_set_max_content_size_
+#define libdecor_frame_set_maximized _glfw.wl.libdecor.libdecor_frame_set_maximized_
+#define libdecor_frame_unset_maximized _glfw.wl.libdecor.libdecor_frame_unset_maximized_
+#define libdecor_frame_set_capabilities _glfw.wl.libdecor.libdecor_frame_set_capabilities_
+#define libdecor_frame_unset_capabilities _glfw.wl.libdecor.libdecor_frame_unset_capabilities_
+#define libdecor_frame_set_visibility _glfw.wl.libdecor.libdecor_frame_set_visibility_
+#define libdecor_frame_get_xdg_toplevel _glfw.wl.libdecor.libdecor_frame_get_xdg_toplevel_
+#define libdecor_configuration_get_content_size _glfw.wl.libdecor.libdecor_configuration_get_content_size_
+#define libdecor_configuration_get_window_state _glfw.wl.libdecor.libdecor_configuration_get_window_state_
+#define libdecor_state_new _glfw.wl.libdecor.libdecor_state_new_
+#define libdecor_state_free _glfw.wl.libdecor.libdecor_state_free_
+
+typedef struct _GLFWfallbackEdgeWayland
+{
+    struct wl_surface*          surface;
+    struct wl_subsurface*       subsurface;
+    struct wp_viewport*         viewport;
+} _GLFWfallbackEdgeWayland;
+
+typedef struct _GLFWofferWayland
+{
+    struct wl_data_offer*       offer;
+    GLFWbool                    text_plain_utf8;
+    GLFWbool                    text_uri_list;
+} _GLFWofferWayland;
+
+typedef struct _GLFWscaleWayland
+{
+    struct wl_output*           output;
+    int32_t                     factor;
+} _GLFWscaleWayland;
+
+// Wayland-specific per-window data
+//
+typedef struct _GLFWwindowWayland
+{
+    int                         width, height;
+    int                         fbWidth, fbHeight;
+    GLFWbool                    visible;
+    GLFWbool                    maximized;
+    GLFWbool                    activated;
+    GLFWbool                    fullscreen;
+    GLFWbool                    hovered;
+    GLFWbool                    transparent;
+    GLFWbool                    scaleFramebuffer;
+    struct wl_surface*          surface;
+    struct wl_callback*         callback;
+
+    struct {
+        struct wl_egl_window*   window;
+    } egl;
+
+    struct {
+        int                     width, height;
+        GLFWbool                maximized;
+        GLFWbool                iconified;
+        GLFWbool                activated;
+        GLFWbool                fullscreen;
+    } pending;
+
+    struct {
+        struct xdg_surface*     surface;
+        struct xdg_toplevel*    toplevel;
+        struct zxdg_toplevel_decoration_v1* decoration;
+        uint32_t                decorationMode;
+    } xdg;
+
+    struct {
+        struct libdecor_frame*  frame;
+    } libdecor;
+
+    _GLFWcursor*                currentCursor;
+    double                      cursorPosX, cursorPosY;
+
+    char*                       appId;
+
+    // We need to track the monitors the window spans on to calculate the
+    // optimal scaling factor.
+    int32_t                     bufferScale;
+    _GLFWscaleWayland*          outputScales;
+    size_t                      outputScaleCount;
+    size_t                      outputScaleSize;
+
+    struct wp_viewport*             scalingViewport;
+    uint32_t                        scalingNumerator;
+    struct wp_fractional_scale_v1*  fractionalScale;
+
+    struct zwp_relative_pointer_v1* relativePointer;
+    struct zwp_locked_pointer_v1*   lockedPointer;
+    struct zwp_confined_pointer_v1* confinedPointer;
+
+    struct zwp_idle_inhibitor_v1*   idleInhibitor;
+    struct xdg_activation_token_v1* activationToken;
+
+    struct {
+        GLFWbool                    decorations;
+        struct wl_buffer*           buffer;
+        _GLFWfallbackEdgeWayland    top, left, right, bottom;
+        struct wl_surface*          focus;
+    } fallback;
+} _GLFWwindowWayland;
+
+// Wayland-specific global data
+//
+typedef struct _GLFWlibraryWayland
+{
+    struct wl_display*          display;
+    struct wl_registry*         registry;
+    struct wl_compositor*       compositor;
+    struct wl_subcompositor*    subcompositor;
+    struct wl_shm*              shm;
+    struct wl_seat*             seat;
+    struct wl_pointer*          pointer;
+    struct wl_keyboard*         keyboard;
+    struct wl_data_device_manager*          dataDeviceManager;
+    struct wl_data_device*      dataDevice;
+    struct xdg_wm_base*         wmBase;
+    struct zxdg_decoration_manager_v1*      decorationManager;
+    struct wp_viewporter*       viewporter;
+    struct zwp_relative_pointer_manager_v1* relativePointerManager;
+    struct zwp_pointer_constraints_v1*      pointerConstraints;
+    struct zwp_idle_inhibit_manager_v1*     idleInhibitManager;
+    struct xdg_activation_v1*               activationManager;
+    struct wp_fractional_scale_manager_v1*  fractionalScaleManager;
+
+    _GLFWofferWayland*          offers;
+    unsigned int                offerCount;
+
+    struct wl_data_offer*       selectionOffer;
+    struct wl_data_source*      selectionSource;
+
+    struct wl_data_offer*       dragOffer;
+    _GLFWwindow*                dragFocus;
+    uint32_t                    dragSerial;
+
+    const char*                 tag;
+
+    struct wl_cursor_theme*     cursorTheme;
+    struct wl_cursor_theme*     cursorThemeHiDPI;
+    struct wl_surface*          cursorSurface;
+    const char*                 cursorPreviousName;
+    int                         cursorTimerfd;
+    uint32_t                    serial;
+    uint32_t                    pointerEnterSerial;
+
+    int                         keyRepeatTimerfd;
+    int32_t                     keyRepeatRate;
+    int32_t                     keyRepeatDelay;
+    int                         keyRepeatScancode;
+
+    char*                       clipboardString;
+    short int                   keycodes[256];
+    short int                   scancodes[GLFW_KEY_LAST + 1];
+    char                        keynames[GLFW_KEY_LAST + 1][5];
+
+    struct {
+        void*                   handle;
+        struct xkb_context*     context;
+        struct xkb_keymap*      keymap;
+        struct xkb_state*       state;
+
+        struct xkb_compose_state* composeState;
+
+        xkb_mod_index_t         controlIndex;
+        xkb_mod_index_t         altIndex;
+        xkb_mod_index_t         shiftIndex;
+        xkb_mod_index_t         superIndex;
+        xkb_mod_index_t         capsLockIndex;
+        xkb_mod_index_t         numLockIndex;
+        unsigned int            modifiers;
+
+        PFN_xkb_context_new context_new;
+        PFN_xkb_context_unref context_unref;
+        PFN_xkb_keymap_new_from_string keymap_new_from_string;
+        PFN_xkb_keymap_unref keymap_unref;
+        PFN_xkb_keymap_mod_get_index keymap_mod_get_index;
+        PFN_xkb_keymap_key_repeats keymap_key_repeats;
+        PFN_xkb_keymap_key_get_syms_by_level keymap_key_get_syms_by_level;
+        PFN_xkb_state_new state_new;
+        PFN_xkb_state_unref state_unref;
+        PFN_xkb_state_key_get_syms state_key_get_syms;
+        PFN_xkb_state_update_mask state_update_mask;
+        PFN_xkb_state_key_get_layout state_key_get_layout;
+        PFN_xkb_state_mod_index_is_active state_mod_index_is_active;
+
+        PFN_xkb_compose_table_new_from_locale compose_table_new_from_locale;
+        PFN_xkb_compose_table_unref compose_table_unref;
+        PFN_xkb_compose_state_new compose_state_new;
+        PFN_xkb_compose_state_unref compose_state_unref;
+        PFN_xkb_compose_state_feed compose_state_feed;
+        PFN_xkb_compose_state_get_status compose_state_get_status;
+        PFN_xkb_compose_state_get_one_sym compose_state_get_one_sym;
+    } xkb;
+
+    _GLFWwindow*                pointerFocus;
+    _GLFWwindow*                keyboardFocus;
+
+    struct {
+        void*                                       handle;
+        PFN_wl_display_flush                        display_flush;
+        PFN_wl_display_cancel_read                  display_cancel_read;
+        PFN_wl_display_dispatch_pending             display_dispatch_pending;
+        PFN_wl_display_read_events                  display_read_events;
+        PFN_wl_display_disconnect                   display_disconnect;
+        PFN_wl_display_roundtrip                    display_roundtrip;
+        PFN_wl_display_get_fd                       display_get_fd;
+        PFN_wl_display_prepare_read                 display_prepare_read;
+        PFN_wl_proxy_marshal                        proxy_marshal;
+        PFN_wl_proxy_add_listener                   proxy_add_listener;
+        PFN_wl_proxy_destroy                        proxy_destroy;
+        PFN_wl_proxy_marshal_constructor            proxy_marshal_constructor;
+        PFN_wl_proxy_marshal_constructor_versioned  proxy_marshal_constructor_versioned;
+        PFN_wl_proxy_get_user_data                  proxy_get_user_data;
+        PFN_wl_proxy_set_user_data                  proxy_set_user_data;
+        PFN_wl_proxy_get_tag                        proxy_get_tag;
+        PFN_wl_proxy_set_tag                        proxy_set_tag;
+        PFN_wl_proxy_get_version                    proxy_get_version;
+        PFN_wl_proxy_marshal_flags                  proxy_marshal_flags;
+    } client;
+
+    struct {
+        void*                   handle;
+
+        PFN_wl_cursor_theme_load theme_load;
+        PFN_wl_cursor_theme_destroy theme_destroy;
+        PFN_wl_cursor_theme_get_cursor theme_get_cursor;
+        PFN_wl_cursor_image_get_buffer image_get_buffer;
+    } cursor;
+
+    struct {
+        void*                   handle;
+
+        PFN_wl_egl_window_create window_create;
+        PFN_wl_egl_window_destroy window_destroy;
+        PFN_wl_egl_window_resize window_resize;
+    } egl;
+
+    struct {
+        void*                   handle;
+        struct libdecor*        context;
+        struct wl_callback*     callback;
+        GLFWbool                ready;
+        PFN_libdecor_new        libdecor_new_;
+        PFN_libdecor_unref      libdecor_unref_;
+        PFN_libdecor_get_fd     libdecor_get_fd_;
+        PFN_libdecor_dispatch   libdecor_dispatch_;
+        PFN_libdecor_decorate   libdecor_decorate_;
+        PFN_libdecor_frame_unref libdecor_frame_unref_;
+        PFN_libdecor_frame_set_app_id libdecor_frame_set_app_id_;
+        PFN_libdecor_frame_set_title libdecor_frame_set_title_;
+        PFN_libdecor_frame_set_minimized libdecor_frame_set_minimized_;
+        PFN_libdecor_frame_set_fullscreen libdecor_frame_set_fullscreen_;
+        PFN_libdecor_frame_unset_fullscreen libdecor_frame_unset_fullscreen_;
+        PFN_libdecor_frame_map libdecor_frame_map_;
+        PFN_libdecor_frame_commit libdecor_frame_commit_;
+        PFN_libdecor_frame_set_min_content_size libdecor_frame_set_min_content_size_;
+        PFN_libdecor_frame_set_max_content_size libdecor_frame_set_max_content_size_;
+        PFN_libdecor_frame_set_maximized libdecor_frame_set_maximized_;
+        PFN_libdecor_frame_unset_maximized libdecor_frame_unset_maximized_;
+        PFN_libdecor_frame_set_capabilities libdecor_frame_set_capabilities_;
+        PFN_libdecor_frame_unset_capabilities libdecor_frame_unset_capabilities_;
+        PFN_libdecor_frame_set_visibility libdecor_frame_set_visibility_;
+        PFN_libdecor_frame_get_xdg_toplevel libdecor_frame_get_xdg_toplevel_;
+        PFN_libdecor_configuration_get_content_size libdecor_configuration_get_content_size_;
+        PFN_libdecor_configuration_get_window_state libdecor_configuration_get_window_state_;
+        PFN_libdecor_state_new libdecor_state_new_;
+        PFN_libdecor_state_free libdecor_state_free_;
+    } libdecor;
+} _GLFWlibraryWayland;
+
+// Wayland-specific per-monitor data
+//
+typedef struct _GLFWmonitorWayland
+{
+    struct wl_output*           output;
+    uint32_t                    name;
+    int                         currentMode;
+
+    int                         x;
+    int                         y;
+    int32_t                     scale;
+} _GLFWmonitorWayland;
+
+// Wayland-specific per-cursor data
+//
+typedef struct _GLFWcursorWayland
+{
+    struct wl_cursor*           cursor;
+    struct wl_cursor*           cursorHiDPI;
+    struct wl_buffer*           buffer;
+    int                         width, height;
+    int                         xhot, yhot;
+    int                         currentImage;
+} _GLFWcursorWayland;
+
+GLFWbool _glfwConnectWayland(int platformID, _GLFWplatform* platform);
+int _glfwInitWayland(void);
+void _glfwTerminateWayland(void);
+
+GLFWbool _glfwCreateWindowWayland(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig);
+void _glfwDestroyWindowWayland(_GLFWwindow* window);
+void _glfwSetWindowTitleWayland(_GLFWwindow* window, const char* title);
+void _glfwSetWindowIconWayland(_GLFWwindow* window, int count, const GLFWimage* images);
+void _glfwGetWindowPosWayland(_GLFWwindow* window, int* xpos, int* ypos);
+void _glfwSetWindowPosWayland(_GLFWwindow* window, int xpos, int ypos);
+void _glfwGetWindowSizeWayland(_GLFWwindow* window, int* width, int* height);
+void _glfwSetWindowSizeWayland(_GLFWwindow* window, int width, int height);
+void _glfwSetWindowSizeLimitsWayland(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight);
+void _glfwSetWindowAspectRatioWayland(_GLFWwindow* window, int numer, int denom);
+void _glfwGetFramebufferSizeWayland(_GLFWwindow* window, int* width, int* height);
+void _glfwGetWindowFrameSizeWayland(_GLFWwindow* window, int* left, int* top, int* right, int* bottom);
+void _glfwGetWindowContentScaleWayland(_GLFWwindow* window, float* xscale, float* yscale);
+void _glfwIconifyWindowWayland(_GLFWwindow* window);
+void _glfwRestoreWindowWayland(_GLFWwindow* window);
+void _glfwMaximizeWindowWayland(_GLFWwindow* window);
+void _glfwShowWindowWayland(_GLFWwindow* window);
+void _glfwHideWindowWayland(_GLFWwindow* window);
+void _glfwRequestWindowAttentionWayland(_GLFWwindow* window);
+void _glfwFocusWindowWayland(_GLFWwindow* window);
+void _glfwSetWindowMonitorWayland(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate);
+GLFWbool _glfwWindowFocusedWayland(_GLFWwindow* window);
+GLFWbool _glfwWindowIconifiedWayland(_GLFWwindow* window);
+GLFWbool _glfwWindowVisibleWayland(_GLFWwindow* window);
+GLFWbool _glfwWindowMaximizedWayland(_GLFWwindow* window);
+GLFWbool _glfwWindowHoveredWayland(_GLFWwindow* window);
+GLFWbool _glfwFramebufferTransparentWayland(_GLFWwindow* window);
+void _glfwSetWindowResizableWayland(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowDecoratedWayland(_GLFWwindow* window, GLFWbool enabled);
+void _glfwSetWindowFloatingWayland(_GLFWwindow* window, GLFWbool enabled);
+float _glfwGetWindowOpacityWayland(_GLFWwindow* window);
+void _glfwSetWindowOpacityWayland(_GLFWwindow* window, float opacity);
+void _glfwSetWindowMousePassthroughWayland(_GLFWwindow* window, GLFWbool enabled);
+
+void _glfwSetRawMouseMotionWayland(_GLFWwindow* window, GLFWbool enabled);
+GLFWbool _glfwRawMouseMotionSupportedWayland(void);
+
+void _glfwPollEventsWayland(void);
+void _glfwWaitEventsWayland(void);
+void _glfwWaitEventsTimeoutWayland(double timeout);
+void _glfwPostEmptyEventWayland(void);
+
+void _glfwGetCursorPosWayland(_GLFWwindow* window, double* xpos, double* ypos);
+void _glfwSetCursorPosWayland(_GLFWwindow* window, double xpos, double ypos);
+void _glfwSetCursorModeWayland(_GLFWwindow* window, int mode);
+const char* _glfwGetScancodeNameWayland(int scancode);
+int _glfwGetKeyScancodeWayland(int key);
+GLFWbool _glfwCreateCursorWayland(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot);
+GLFWbool _glfwCreateStandardCursorWayland(_GLFWcursor* cursor, int shape);
+void _glfwDestroyCursorWayland(_GLFWcursor* cursor);
+void _glfwSetCursorWayland(_GLFWwindow* window, _GLFWcursor* cursor);
+void _glfwSetClipboardStringWayland(const char* string);
+const char* _glfwGetClipboardStringWayland(void);
+
+EGLenum _glfwGetEGLPlatformWayland(EGLint** attribs);
+EGLNativeDisplayType _glfwGetEGLNativeDisplayWayland(void);
+EGLNativeWindowType _glfwGetEGLNativeWindowWayland(_GLFWwindow* window);
+
+void _glfwGetRequiredInstanceExtensionsWayland(char** extensions);
+GLFWbool _glfwGetPhysicalDevicePresentationSupportWayland(VkInstance instance, VkPhysicalDevice device, uint32_t queuefamily);
+VkResult _glfwCreateWindowSurfaceWayland(VkInstance instance, _GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface);
+
+void _glfwFreeMonitorWayland(_GLFWmonitor* monitor);
+void _glfwGetMonitorPosWayland(_GLFWmonitor* monitor, int* xpos, int* ypos);
+void _glfwGetMonitorContentScaleWayland(_GLFWmonitor* monitor, float* xscale, float* yscale);
+void _glfwGetMonitorWorkareaWayland(_GLFWmonitor* monitor, int* xpos, int* ypos, int* width, int* height);
+GLFWvidmode* _glfwGetVideoModesWayland(_GLFWmonitor* monitor, int* count);
+GLFWbool _glfwGetVideoModeWayland(_GLFWmonitor* monitor, GLFWvidmode* mode);
+GLFWbool _glfwGetGammaRampWayland(_GLFWmonitor* monitor, GLFWgammaramp* ramp);
+void _glfwSetGammaRampWayland(_GLFWmonitor* monitor, const GLFWgammaramp* ramp);
+
+void _glfwAddOutputWayland(uint32_t name, uint32_t version);
+void _glfwUpdateBufferScaleFromOutputsWayland(_GLFWwindow* window);
+
+void _glfwAddSeatListenerWayland(struct wl_seat* seat);
+void _glfwAddDataDeviceListenerWayland(struct wl_data_device* device);
+

raylib/external/glfw/src/x11_monitor.c

@@ -0,0 +1,641 @@
+//========================================================================
+// GLFW 3.4 X11 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_X11)
+
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+
+// Check whether the display mode should be included in enumeration
+//
+static GLFWbool modeIsGood(const XRRModeInfo* mi)
+{
+    return (mi->modeFlags & RR_Interlace) == 0;
+}
+
+// Calculates the refresh rate, in Hz, from the specified RandR mode info
+//
+static int calculateRefreshRate(const XRRModeInfo* mi)
+{
+    if (mi->hTotal && mi->vTotal)
+        return (int) round((double) mi->dotClock / ((double) mi->hTotal * (double) mi->vTotal));
+    else
+        return 0;
+}
+
+// Returns the mode info for a RandR mode XID
+//
+static const XRRModeInfo* getModeInfo(const XRRScreenResources* sr, RRMode id)
+{
+    for (int i = 0;  i < sr->nmode;  i++)
+    {
+        if (sr->modes[i].id == id)
+            return sr->modes + i;
+    }
+
+    return NULL;
+}
+
+// Convert RandR mode info to GLFW video mode
+//
+static GLFWvidmode vidmodeFromModeInfo(const XRRModeInfo* mi,
+                                       const XRRCrtcInfo* ci)
+{
+    GLFWvidmode mode;
+
+    if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270)
+    {
+        mode.width  = mi->height;
+        mode.height = mi->width;
+    }
+    else
+    {
+        mode.width  = mi->width;
+        mode.height = mi->height;
+    }
+
+    mode.refreshRate = calculateRefreshRate(mi);
+
+    _glfwSplitBPP(DefaultDepth(_glfw.x11.display, _glfw.x11.screen),
+                  &mode.redBits, &mode.greenBits, &mode.blueBits);
+
+    return mode;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Poll for changes in the set of connected monitors
+//
+void _glfwPollMonitorsX11(void)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        int disconnectedCount, screenCount = 0;
+        _GLFWmonitor** disconnected = NULL;
+        XineramaScreenInfo* screens = NULL;
+        XRRScreenResources* sr = XRRGetScreenResourcesCurrent(_glfw.x11.display,
+                                                              _glfw.x11.root);
+        RROutput primary = XRRGetOutputPrimary(_glfw.x11.display,
+                                               _glfw.x11.root);
+
+        if (_glfw.x11.xinerama.available)
+            screens = XineramaQueryScreens(_glfw.x11.display, &screenCount);
+
+        disconnectedCount = _glfw.monitorCount;
+        if (disconnectedCount)
+        {
+            disconnected = _glfw_calloc(_glfw.monitorCount, sizeof(_GLFWmonitor*));
+            memcpy(disconnected,
+                   _glfw.monitors,
+                   _glfw.monitorCount * sizeof(_GLFWmonitor*));
+        }
+
+        for (int i = 0;  i < sr->noutput;  i++)
+        {
+            int j, type, widthMM, heightMM;
+
+            XRROutputInfo* oi = XRRGetOutputInfo(_glfw.x11.display, sr, sr->outputs[i]);
+            if (oi->connection != RR_Connected || oi->crtc == None)
+            {
+                XRRFreeOutputInfo(oi);
+                continue;
+            }
+
+            for (j = 0;  j < disconnectedCount;  j++)
+            {
+                if (disconnected[j] &&
+                    disconnected[j]->x11.output == sr->outputs[i])
+                {
+                    disconnected[j] = NULL;
+                    break;
+                }
+            }
+
+            if (j < disconnectedCount)
+            {
+                XRRFreeOutputInfo(oi);
+                continue;
+            }
+
+            XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, oi->crtc);
+            if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270)
+            {
+                widthMM  = oi->mm_height;
+                heightMM = oi->mm_width;
+            }
+            else
+            {
+                widthMM  = oi->mm_width;
+                heightMM = oi->mm_height;
+            }
+
+            if (widthMM <= 0 || heightMM <= 0)
+            {
+                // HACK: If RandR does not provide a physical size, assume the
+                //       X11 default 96 DPI and calculate from the CRTC viewport
+                // NOTE: These members are affected by rotation, unlike the mode
+                //       info and output info members
+                widthMM  = (int) (ci->width * 25.4f / 96.f);
+                heightMM = (int) (ci->height * 25.4f / 96.f);
+            }
+
+            _GLFWmonitor* monitor = _glfwAllocMonitor(oi->name, widthMM, heightMM);
+            monitor->x11.output = sr->outputs[i];
+            monitor->x11.crtc   = oi->crtc;
+
+            for (j = 0;  j < screenCount;  j++)
+            {
+                if (screens[j].x_org == ci->x &&
+                    screens[j].y_org == ci->y &&
+                    screens[j].width == ci->width &&
+                    screens[j].height == ci->height)
+                {
+                    monitor->x11.index = j;
+                    break;
+                }
+            }
+
+            if (monitor->x11.output == primary)
+                type = _GLFW_INSERT_FIRST;
+            else
+                type = _GLFW_INSERT_LAST;
+
+            _glfwInputMonitor(monitor, GLFW_CONNECTED, type);
+
+            XRRFreeOutputInfo(oi);
+            XRRFreeCrtcInfo(ci);
+        }
+
+        XRRFreeScreenResources(sr);
+
+        if (screens)
+            XFree(screens);
+
+        for (int i = 0;  i < disconnectedCount;  i++)
+        {
+            if (disconnected[i])
+                _glfwInputMonitor(disconnected[i], GLFW_DISCONNECTED, 0);
+        }
+
+        _glfw_free(disconnected);
+    }
+    else
+    {
+        const int widthMM = DisplayWidthMM(_glfw.x11.display, _glfw.x11.screen);
+        const int heightMM = DisplayHeightMM(_glfw.x11.display, _glfw.x11.screen);
+
+        _glfwInputMonitor(_glfwAllocMonitor("Display", widthMM, heightMM),
+                          GLFW_CONNECTED,
+                          _GLFW_INSERT_FIRST);
+    }
+}
+
+// Set the current video mode for the specified monitor
+//
+void _glfwSetVideoModeX11(_GLFWmonitor* monitor, const GLFWvidmode* desired)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        GLFWvidmode current;
+        RRMode native = None;
+
+        const GLFWvidmode* best = _glfwChooseVideoMode(monitor, desired);
+        _glfwGetVideoModeX11(monitor, &current);
+        if (_glfwCompareVideoModes(&current, best) == 0)
+            return;
+
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+        XRROutputInfo* oi = XRRGetOutputInfo(_glfw.x11.display, sr, monitor->x11.output);
+
+        for (int i = 0;  i < oi->nmode;  i++)
+        {
+            const XRRModeInfo* mi = getModeInfo(sr, oi->modes[i]);
+            if (!modeIsGood(mi))
+                continue;
+
+            const GLFWvidmode mode = vidmodeFromModeInfo(mi, ci);
+            if (_glfwCompareVideoModes(best, &mode) == 0)
+            {
+                native = mi->id;
+                break;
+            }
+        }
+
+        if (native)
+        {
+            if (monitor->x11.oldMode == None)
+                monitor->x11.oldMode = ci->mode;
+
+            XRRSetCrtcConfig(_glfw.x11.display,
+                             sr, monitor->x11.crtc,
+                             CurrentTime,
+                             ci->x, ci->y,
+                             native,
+                             ci->rotation,
+                             ci->outputs,
+                             ci->noutput);
+        }
+
+        XRRFreeOutputInfo(oi);
+        XRRFreeCrtcInfo(ci);
+        XRRFreeScreenResources(sr);
+    }
+}
+
+// Restore the saved (original) video mode for the specified monitor
+//
+void _glfwRestoreVideoModeX11(_GLFWmonitor* monitor)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        if (monitor->x11.oldMode == None)
+            return;
+
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+
+        XRRSetCrtcConfig(_glfw.x11.display,
+                         sr, monitor->x11.crtc,
+                         CurrentTime,
+                         ci->x, ci->y,
+                         monitor->x11.oldMode,
+                         ci->rotation,
+                         ci->outputs,
+                         ci->noutput);
+
+        XRRFreeCrtcInfo(ci);
+        XRRFreeScreenResources(sr);
+
+        monitor->x11.oldMode = None;
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+void _glfwFreeMonitorX11(_GLFWmonitor* monitor)
+{
+}
+
+void _glfwGetMonitorPosX11(_GLFWmonitor* monitor, int* xpos, int* ypos)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+
+        if (ci)
+        {
+            if (xpos)
+                *xpos = ci->x;
+            if (ypos)
+                *ypos = ci->y;
+
+            XRRFreeCrtcInfo(ci);
+        }
+
+        XRRFreeScreenResources(sr);
+    }
+}
+
+void _glfwGetMonitorContentScaleX11(_GLFWmonitor* monitor,
+                                    float* xscale, float* yscale)
+{
+    if (xscale)
+        *xscale = _glfw.x11.contentScaleX;
+    if (yscale)
+        *yscale = _glfw.x11.contentScaleY;
+}
+
+void _glfwGetMonitorWorkareaX11(_GLFWmonitor* monitor,
+                                int* xpos, int* ypos,
+                                int* width, int* height)
+{
+    int areaX = 0, areaY = 0, areaWidth = 0, areaHeight = 0;
+
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+
+        areaX = ci->x;
+        areaY = ci->y;
+
+        const XRRModeInfo* mi = getModeInfo(sr, ci->mode);
+
+        if (ci->rotation == RR_Rotate_90 || ci->rotation == RR_Rotate_270)
+        {
+            areaWidth  = mi->height;
+            areaHeight = mi->width;
+        }
+        else
+        {
+            areaWidth  = mi->width;
+            areaHeight = mi->height;
+        }
+
+        XRRFreeCrtcInfo(ci);
+        XRRFreeScreenResources(sr);
+    }
+    else
+    {
+        areaWidth  = DisplayWidth(_glfw.x11.display, _glfw.x11.screen);
+        areaHeight = DisplayHeight(_glfw.x11.display, _glfw.x11.screen);
+    }
+
+    if (_glfw.x11.NET_WORKAREA && _glfw.x11.NET_CURRENT_DESKTOP)
+    {
+        Atom* extents = NULL;
+        Atom* desktop = NULL;
+        const unsigned long extentCount =
+            _glfwGetWindowPropertyX11(_glfw.x11.root,
+                                      _glfw.x11.NET_WORKAREA,
+                                      XA_CARDINAL,
+                                      (unsigned char**) &extents);
+
+        if (_glfwGetWindowPropertyX11(_glfw.x11.root,
+                                      _glfw.x11.NET_CURRENT_DESKTOP,
+                                      XA_CARDINAL,
+                                      (unsigned char**) &desktop) > 0)
+        {
+            if (extentCount >= 4 && *desktop < extentCount / 4)
+            {
+                const int globalX = extents[*desktop * 4 + 0];
+                const int globalY = extents[*desktop * 4 + 1];
+                const int globalWidth  = extents[*desktop * 4 + 2];
+                const int globalHeight = extents[*desktop * 4 + 3];
+
+                if (areaX < globalX)
+                {
+                    areaWidth -= globalX - areaX;
+                    areaX = globalX;
+                }
+
+                if (areaY < globalY)
+                {
+                    areaHeight -= globalY - areaY;
+                    areaY = globalY;
+                }
+
+                if (areaX + areaWidth > globalX + globalWidth)
+                    areaWidth = globalX - areaX + globalWidth;
+                if (areaY + areaHeight > globalY + globalHeight)
+                    areaHeight = globalY - areaY + globalHeight;
+            }
+        }
+
+        if (extents)
+            XFree(extents);
+        if (desktop)
+            XFree(desktop);
+    }
+
+    if (xpos)
+        *xpos = areaX;
+    if (ypos)
+        *ypos = areaY;
+    if (width)
+        *width = areaWidth;
+    if (height)
+        *height = areaHeight;
+}
+
+GLFWvidmode* _glfwGetVideoModesX11(_GLFWmonitor* monitor, int* count)
+{
+    GLFWvidmode* result;
+
+    *count = 0;
+
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+        XRROutputInfo* oi = XRRGetOutputInfo(_glfw.x11.display, sr, monitor->x11.output);
+
+        result = _glfw_calloc(oi->nmode, sizeof(GLFWvidmode));
+
+        for (int i = 0;  i < oi->nmode;  i++)
+        {
+            const XRRModeInfo* mi = getModeInfo(sr, oi->modes[i]);
+            if (!modeIsGood(mi))
+                continue;
+
+            const GLFWvidmode mode = vidmodeFromModeInfo(mi, ci);
+            int j;
+
+            for (j = 0;  j < *count;  j++)
+            {
+                if (_glfwCompareVideoModes(result + j, &mode) == 0)
+                    break;
+            }
+
+            // Skip duplicate modes
+            if (j < *count)
+                continue;
+
+            (*count)++;
+            result[*count - 1] = mode;
+        }
+
+        XRRFreeOutputInfo(oi);
+        XRRFreeCrtcInfo(ci);
+        XRRFreeScreenResources(sr);
+    }
+    else
+    {
+        *count = 1;
+        result = _glfw_calloc(1, sizeof(GLFWvidmode));
+        _glfwGetVideoModeX11(monitor, result);
+    }
+
+    return result;
+}
+
+GLFWbool _glfwGetVideoModeX11(_GLFWmonitor* monitor, GLFWvidmode* mode)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.monitorBroken)
+    {
+        XRRScreenResources* sr =
+            XRRGetScreenResourcesCurrent(_glfw.x11.display, _glfw.x11.root);
+        const XRRModeInfo* mi = NULL;
+
+        XRRCrtcInfo* ci = XRRGetCrtcInfo(_glfw.x11.display, sr, monitor->x11.crtc);
+        if (ci)
+        {
+            mi = getModeInfo(sr, ci->mode);
+            if (mi)
+                *mode = vidmodeFromModeInfo(mi, ci);
+
+            XRRFreeCrtcInfo(ci);
+        }
+
+        XRRFreeScreenResources(sr);
+
+        if (!mi)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to query video mode");
+            return GLFW_FALSE;
+        }
+    }
+    else
+    {
+        mode->width = DisplayWidth(_glfw.x11.display, _glfw.x11.screen);
+        mode->height = DisplayHeight(_glfw.x11.display, _glfw.x11.screen);
+        mode->refreshRate = 0;
+
+        _glfwSplitBPP(DefaultDepth(_glfw.x11.display, _glfw.x11.screen),
+                      &mode->redBits, &mode->greenBits, &mode->blueBits);
+    }
+
+    return GLFW_TRUE;
+}
+
+GLFWbool _glfwGetGammaRampX11(_GLFWmonitor* monitor, GLFWgammaramp* ramp)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
+    {
+        const size_t size = XRRGetCrtcGammaSize(_glfw.x11.display,
+                                                monitor->x11.crtc);
+        XRRCrtcGamma* gamma = XRRGetCrtcGamma(_glfw.x11.display,
+                                              monitor->x11.crtc);
+
+        _glfwAllocGammaArrays(ramp, size);
+
+        memcpy(ramp->red,   gamma->red,   size * sizeof(unsigned short));
+        memcpy(ramp->green, gamma->green, size * sizeof(unsigned short));
+        memcpy(ramp->blue,  gamma->blue,  size * sizeof(unsigned short));
+
+        XRRFreeGamma(gamma);
+        return GLFW_TRUE;
+    }
+    else if (_glfw.x11.vidmode.available)
+    {
+        int size;
+        XF86VidModeGetGammaRampSize(_glfw.x11.display, _glfw.x11.screen, &size);
+
+        _glfwAllocGammaArrays(ramp, size);
+
+        XF86VidModeGetGammaRamp(_glfw.x11.display,
+                                _glfw.x11.screen,
+                                ramp->size, ramp->red, ramp->green, ramp->blue);
+        return GLFW_TRUE;
+    }
+    else
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "X11: Gamma ramp access not supported by server");
+        return GLFW_FALSE;
+    }
+}
+
+void _glfwSetGammaRampX11(_GLFWmonitor* monitor, const GLFWgammaramp* ramp)
+{
+    if (_glfw.x11.randr.available && !_glfw.x11.randr.gammaBroken)
+    {
+        if (XRRGetCrtcGammaSize(_glfw.x11.display, monitor->x11.crtc) != ramp->size)
+        {
+            _glfwInputError(GLFW_PLATFORM_ERROR,
+                            "X11: Gamma ramp size must match current ramp size");
+            return;
+        }
+
+        XRRCrtcGamma* gamma = XRRAllocGamma(ramp->size);
+
+        memcpy(gamma->red,   ramp->red,   ramp->size * sizeof(unsigned short));
+        memcpy(gamma->green, ramp->green, ramp->size * sizeof(unsigned short));
+        memcpy(gamma->blue,  ramp->blue,  ramp->size * sizeof(unsigned short));
+
+        XRRSetCrtcGamma(_glfw.x11.display, monitor->x11.crtc, gamma);
+        XRRFreeGamma(gamma);
+    }
+    else if (_glfw.x11.vidmode.available)
+    {
+        XF86VidModeSetGammaRamp(_glfw.x11.display,
+                                _glfw.x11.screen,
+                                ramp->size,
+                                (unsigned short*) ramp->red,
+                                (unsigned short*) ramp->green,
+                                (unsigned short*) ramp->blue);
+    }
+    else
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR,
+                        "X11: Gamma ramp access not supported by server");
+    }
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        GLFW native API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWAPI RRCrtc glfwGetX11Adapter(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(None);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "X11: Platform not initialized");
+        return None;
+    }
+
+    return monitor->x11.crtc;
+}
+
+GLFWAPI RROutput glfwGetX11Monitor(GLFWmonitor* handle)
+{
+    _GLFWmonitor* monitor = (_GLFWmonitor*) handle;
+    _GLFW_REQUIRE_INIT_OR_RETURN(None);
+
+    if (_glfw.platform.platformID != GLFW_PLATFORM_X11)
+    {
+        _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, "X11: Platform not initialized");
+        return None;
+    }
+
+    return monitor->x11.output;
+}
+
+#endif // _GLFW_X11
+

raylib/external/glfw/src/xkb_unicode.c

@@ -0,0 +1,943 @@
+//========================================================================
+// GLFW 3.4 X11 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2017 Camilla Löwy <elmindreda@glfw.org>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#include "internal.h"
+
+#if defined(_GLFW_X11) || defined(_GLFW_WAYLAND)
+
+/*
+ * Marcus: This code was originally written by Markus G. Kuhn.
+ * I have made some slight changes (trimmed it down a bit from >60 KB to
+ * 20 KB), but the functionality is the same.
+ */
+
+/*
+ * This module converts keysym values into the corresponding ISO 10646
+ * (UCS, Unicode) values.
+ *
+ * The array keysymtab[] contains pairs of X11 keysym values for graphical
+ * characters and the corresponding Unicode value. The function
+ * _glfwKeySym2Unicode() maps a keysym onto a Unicode value using a binary
+ * search, therefore keysymtab[] must remain SORTED by keysym value.
+ *
+ * We allow to represent any UCS character in the range U-00000000 to
+ * U-00FFFFFF by a keysym value in the range 0x01000000 to 0x01ffffff.
+ * This admittedly does not cover the entire 31-bit space of UCS, but
+ * it does cover all of the characters up to U-10FFFF, which can be
+ * represented by UTF-16, and more, and it is very unlikely that higher
+ * UCS codes will ever be assigned by ISO. So to get Unicode character
+ * U+ABCD you can directly use keysym 0x0100abcd.
+ *
+ * Original author: Markus G. Kuhn <mkuhn@acm.org>, University of
+ *                  Cambridge, April 2001
+ *
+ * Special thanks to Richard Verhoeven <river@win.tue.nl> for preparing
+ * an initial draft of the mapping table.
+ *
+ */
+
+
+//************************************************************************
+//****                KeySym to Unicode mapping table                 ****
+//************************************************************************
+
+static const struct codepair {
+  unsigned short keysym;
+  unsigned short ucs;
+} keysymtab[] = {
+  { 0x01a1, 0x0104 },
+  { 0x01a2, 0x02d8 },
+  { 0x01a3, 0x0141 },
+  { 0x01a5, 0x013d },
+  { 0x01a6, 0x015a },
+  { 0x01a9, 0x0160 },
+  { 0x01aa, 0x015e },
+  { 0x01ab, 0x0164 },
+  { 0x01ac, 0x0179 },
+  { 0x01ae, 0x017d },
+  { 0x01af, 0x017b },
+  { 0x01b1, 0x0105 },
+  { 0x01b2, 0x02db },
+  { 0x01b3, 0x0142 },
+  { 0x01b5, 0x013e },
+  { 0x01b6, 0x015b },
+  { 0x01b7, 0x02c7 },
+  { 0x01b9, 0x0161 },
+  { 0x01ba, 0x015f },
+  { 0x01bb, 0x0165 },
+  { 0x01bc, 0x017a },
+  { 0x01bd, 0x02dd },
+  { 0x01be, 0x017e },
+  { 0x01bf, 0x017c },
+  { 0x01c0, 0x0154 },
+  { 0x01c3, 0x0102 },
+  { 0x01c5, 0x0139 },
+  { 0x01c6, 0x0106 },
+  { 0x01c8, 0x010c },
+  { 0x01ca, 0x0118 },
+  { 0x01cc, 0x011a },
+  { 0x01cf, 0x010e },
+  { 0x01d0, 0x0110 },
+  { 0x01d1, 0x0143 },
+  { 0x01d2, 0x0147 },
+  { 0x01d5, 0x0150 },
+  { 0x01d8, 0x0158 },
+  { 0x01d9, 0x016e },
+  { 0x01db, 0x0170 },
+  { 0x01de, 0x0162 },
+  { 0x01e0, 0x0155 },
+  { 0x01e3, 0x0103 },
+  { 0x01e5, 0x013a },
+  { 0x01e6, 0x0107 },
+  { 0x01e8, 0x010d },
+  { 0x01ea, 0x0119 },
+  { 0x01ec, 0x011b },
+  { 0x01ef, 0x010f },
+  { 0x01f0, 0x0111 },
+  { 0x01f1, 0x0144 },
+  { 0x01f2, 0x0148 },
+  { 0x01f5, 0x0151 },
+  { 0x01f8, 0x0159 },
+  { 0x01f9, 0x016f },
+  { 0x01fb, 0x0171 },
+  { 0x01fe, 0x0163 },
+  { 0x01ff, 0x02d9 },
+  { 0x02a1, 0x0126 },
+  { 0x02a6, 0x0124 },
+  { 0x02a9, 0x0130 },
+  { 0x02ab, 0x011e },
+  { 0x02ac, 0x0134 },
+  { 0x02b1, 0x0127 },
+  { 0x02b6, 0x0125 },
+  { 0x02b9, 0x0131 },
+  { 0x02bb, 0x011f },
+  { 0x02bc, 0x0135 },
+  { 0x02c5, 0x010a },
+  { 0x02c6, 0x0108 },
+  { 0x02d5, 0x0120 },
+  { 0x02d8, 0x011c },
+  { 0x02dd, 0x016c },
+  { 0x02de, 0x015c },
+  { 0x02e5, 0x010b },
+  { 0x02e6, 0x0109 },
+  { 0x02f5, 0x0121 },
+  { 0x02f8, 0x011d },
+  { 0x02fd, 0x016d },
+  { 0x02fe, 0x015d },
+  { 0x03a2, 0x0138 },
+  { 0x03a3, 0x0156 },
+  { 0x03a5, 0x0128 },
+  { 0x03a6, 0x013b },
+  { 0x03aa, 0x0112 },
+  { 0x03ab, 0x0122 },
+  { 0x03ac, 0x0166 },
+  { 0x03b3, 0x0157 },
+  { 0x03b5, 0x0129 },
+  { 0x03b6, 0x013c },
+  { 0x03ba, 0x0113 },
+  { 0x03bb, 0x0123 },
+  { 0x03bc, 0x0167 },
+  { 0x03bd, 0x014a },
+  { 0x03bf, 0x014b },
+  { 0x03c0, 0x0100 },
+  { 0x03c7, 0x012e },
+  { 0x03cc, 0x0116 },
+  { 0x03cf, 0x012a },
+  { 0x03d1, 0x0145 },
+  { 0x03d2, 0x014c },
+  { 0x03d3, 0x0136 },
+  { 0x03d9, 0x0172 },
+  { 0x03dd, 0x0168 },
+  { 0x03de, 0x016a },
+  { 0x03e0, 0x0101 },
+  { 0x03e7, 0x012f },
+  { 0x03ec, 0x0117 },
+  { 0x03ef, 0x012b },
+  { 0x03f1, 0x0146 },
+  { 0x03f2, 0x014d },
+  { 0x03f3, 0x0137 },
+  { 0x03f9, 0x0173 },
+  { 0x03fd, 0x0169 },
+  { 0x03fe, 0x016b },
+  { 0x047e, 0x203e },
+  { 0x04a1, 0x3002 },
+  { 0x04a2, 0x300c },
+  { 0x04a3, 0x300d },
+  { 0x04a4, 0x3001 },
+  { 0x04a5, 0x30fb },
+  { 0x04a6, 0x30f2 },
+  { 0x04a7, 0x30a1 },
+  { 0x04a8, 0x30a3 },
+  { 0x04a9, 0x30a5 },
+  { 0x04aa, 0x30a7 },
+  { 0x04ab, 0x30a9 },
+  { 0x04ac, 0x30e3 },
+  { 0x04ad, 0x30e5 },
+  { 0x04ae, 0x30e7 },
+  { 0x04af, 0x30c3 },
+  { 0x04b0, 0x30fc },
+  { 0x04b1, 0x30a2 },
+  { 0x04b2, 0x30a4 },
+  { 0x04b3, 0x30a6 },
+  { 0x04b4, 0x30a8 },
+  { 0x04b5, 0x30aa },
+  { 0x04b6, 0x30ab },
+  { 0x04b7, 0x30ad },
+  { 0x04b8, 0x30af },
+  { 0x04b9, 0x30b1 },
+  { 0x04ba, 0x30b3 },
+  { 0x04bb, 0x30b5 },
+  { 0x04bc, 0x30b7 },
+  { 0x04bd, 0x30b9 },
+  { 0x04be, 0x30bb },
+  { 0x04bf, 0x30bd },
+  { 0x04c0, 0x30bf },
+  { 0x04c1, 0x30c1 },
+  { 0x04c2, 0x30c4 },
+  { 0x04c3, 0x30c6 },
+  { 0x04c4, 0x30c8 },
+  { 0x04c5, 0x30ca },
+  { 0x04c6, 0x30cb },
+  { 0x04c7, 0x30cc },
+  { 0x04c8, 0x30cd },
+  { 0x04c9, 0x30ce },
+  { 0x04ca, 0x30cf },
+  { 0x04cb, 0x30d2 },
+  { 0x04cc, 0x30d5 },
+  { 0x04cd, 0x30d8 },
+  { 0x04ce, 0x30db },
+  { 0x04cf, 0x30de },
+  { 0x04d0, 0x30df },
+  { 0x04d1, 0x30e0 },
+  { 0x04d2, 0x30e1 },
+  { 0x04d3, 0x30e2 },
+  { 0x04d4, 0x30e4 },
+  { 0x04d5, 0x30e6 },
+  { 0x04d6, 0x30e8 },
+  { 0x04d7, 0x30e9 },
+  { 0x04d8, 0x30ea },
+  { 0x04d9, 0x30eb },
+  { 0x04da, 0x30ec },
+  { 0x04db, 0x30ed },
+  { 0x04dc, 0x30ef },
+  { 0x04dd, 0x30f3 },
+  { 0x04de, 0x309b },
+  { 0x04df, 0x309c },
+  { 0x05ac, 0x060c },
+  { 0x05bb, 0x061b },
+  { 0x05bf, 0x061f },
+  { 0x05c1, 0x0621 },
+  { 0x05c2, 0x0622 },
+  { 0x05c3, 0x0623 },
+  { 0x05c4, 0x0624 },
+  { 0x05c5, 0x0625 },
+  { 0x05c6, 0x0626 },
+  { 0x05c7, 0x0627 },
+  { 0x05c8, 0x0628 },
+  { 0x05c9, 0x0629 },
+  { 0x05ca, 0x062a },
+  { 0x05cb, 0x062b },
+  { 0x05cc, 0x062c },
+  { 0x05cd, 0x062d },
+  { 0x05ce, 0x062e },
+  { 0x05cf, 0x062f },
+  { 0x05d0, 0x0630 },
+  { 0x05d1, 0x0631 },
+  { 0x05d2, 0x0632 },
+  { 0x05d3, 0x0633 },
+  { 0x05d4, 0x0634 },
+  { 0x05d5, 0x0635 },
+  { 0x05d6, 0x0636 },
+  { 0x05d7, 0x0637 },
+  { 0x05d8, 0x0638 },
+  { 0x05d9, 0x0639 },
+  { 0x05da, 0x063a },
+  { 0x05e0, 0x0640 },
+  { 0x05e1, 0x0641 },
+  { 0x05e2, 0x0642 },
+  { 0x05e3, 0x0643 },
+  { 0x05e4, 0x0644 },
+  { 0x05e5, 0x0645 },
+  { 0x05e6, 0x0646 },
+  { 0x05e7, 0x0647 },
+  { 0x05e8, 0x0648 },
+  { 0x05e9, 0x0649 },
+  { 0x05ea, 0x064a },
+  { 0x05eb, 0x064b },
+  { 0x05ec, 0x064c },
+  { 0x05ed, 0x064d },
+  { 0x05ee, 0x064e },
+  { 0x05ef, 0x064f },
+  { 0x05f0, 0x0650 },
+  { 0x05f1, 0x0651 },
+  { 0x05f2, 0x0652 },
+  { 0x06a1, 0x0452 },
+  { 0x06a2, 0x0453 },
+  { 0x06a3, 0x0451 },
+  { 0x06a4, 0x0454 },
+  { 0x06a5, 0x0455 },
+  { 0x06a6, 0x0456 },
+  { 0x06a7, 0x0457 },
+  { 0x06a8, 0x0458 },
+  { 0x06a9, 0x0459 },
+  { 0x06aa, 0x045a },
+  { 0x06ab, 0x045b },
+  { 0x06ac, 0x045c },
+  { 0x06ae, 0x045e },
+  { 0x06af, 0x045f },
+  { 0x06b0, 0x2116 },
+  { 0x06b1, 0x0402 },
+  { 0x06b2, 0x0403 },
+  { 0x06b3, 0x0401 },
+  { 0x06b4, 0x0404 },
+  { 0x06b5, 0x0405 },
+  { 0x06b6, 0x0406 },
+  { 0x06b7, 0x0407 },
+  { 0x06b8, 0x0408 },
+  { 0x06b9, 0x0409 },
+  { 0x06ba, 0x040a },
+  { 0x06bb, 0x040b },
+  { 0x06bc, 0x040c },
+  { 0x06be, 0x040e },
+  { 0x06bf, 0x040f },
+  { 0x06c0, 0x044e },
+  { 0x06c1, 0x0430 },
+  { 0x06c2, 0x0431 },
+  { 0x06c3, 0x0446 },
+  { 0x06c4, 0x0434 },
+  { 0x06c5, 0x0435 },
+  { 0x06c6, 0x0444 },
+  { 0x06c7, 0x0433 },
+  { 0x06c8, 0x0445 },
+  { 0x06c9, 0x0438 },
+  { 0x06ca, 0x0439 },
+  { 0x06cb, 0x043a },
+  { 0x06cc, 0x043b },
+  { 0x06cd, 0x043c },
+  { 0x06ce, 0x043d },
+  { 0x06cf, 0x043e },
+  { 0x06d0, 0x043f },
+  { 0x06d1, 0x044f },
+  { 0x06d2, 0x0440 },
+  { 0x06d3, 0x0441 },
+  { 0x06d4, 0x0442 },
+  { 0x06d5, 0x0443 },
+  { 0x06d6, 0x0436 },
+  { 0x06d7, 0x0432 },
+  { 0x06d8, 0x044c },
+  { 0x06d9, 0x044b },
+  { 0x06da, 0x0437 },
+  { 0x06db, 0x0448 },
+  { 0x06dc, 0x044d },
+  { 0x06dd, 0x0449 },
+  { 0x06de, 0x0447 },
+  { 0x06df, 0x044a },
+  { 0x06e0, 0x042e },
+  { 0x06e1, 0x0410 },
+  { 0x06e2, 0x0411 },
+  { 0x06e3, 0x0426 },
+  { 0x06e4, 0x0414 },
+  { 0x06e5, 0x0415 },
+  { 0x06e6, 0x0424 },
+  { 0x06e7, 0x0413 },
+  { 0x06e8, 0x0425 },
+  { 0x06e9, 0x0418 },
+  { 0x06ea, 0x0419 },
+  { 0x06eb, 0x041a },
+  { 0x06ec, 0x041b },
+  { 0x06ed, 0x041c },
+  { 0x06ee, 0x041d },
+  { 0x06ef, 0x041e },
+  { 0x06f0, 0x041f },
+  { 0x06f1, 0x042f },
+  { 0x06f2, 0x0420 },
+  { 0x06f3, 0x0421 },
+  { 0x06f4, 0x0422 },
+  { 0x06f5, 0x0423 },
+  { 0x06f6, 0x0416 },
+  { 0x06f7, 0x0412 },
+  { 0x06f8, 0x042c },
+  { 0x06f9, 0x042b },
+  { 0x06fa, 0x0417 },
+  { 0x06fb, 0x0428 },
+  { 0x06fc, 0x042d },
+  { 0x06fd, 0x0429 },
+  { 0x06fe, 0x0427 },
+  { 0x06ff, 0x042a },
+  { 0x07a1, 0x0386 },
+  { 0x07a2, 0x0388 },
+  { 0x07a3, 0x0389 },
+  { 0x07a4, 0x038a },
+  { 0x07a5, 0x03aa },
+  { 0x07a7, 0x038c },
+  { 0x07a8, 0x038e },
+  { 0x07a9, 0x03ab },
+  { 0x07ab, 0x038f },
+  { 0x07ae, 0x0385 },
+  { 0x07af, 0x2015 },
+  { 0x07b1, 0x03ac },
+  { 0x07b2, 0x03ad },
+  { 0x07b3, 0x03ae },
+  { 0x07b4, 0x03af },
+  { 0x07b5, 0x03ca },
+  { 0x07b6, 0x0390 },
+  { 0x07b7, 0x03cc },
+  { 0x07b8, 0x03cd },
+  { 0x07b9, 0x03cb },
+  { 0x07ba, 0x03b0 },
+  { 0x07bb, 0x03ce },
+  { 0x07c1, 0x0391 },
+  { 0x07c2, 0x0392 },
+  { 0x07c3, 0x0393 },
+  { 0x07c4, 0x0394 },
+  { 0x07c5, 0x0395 },
+  { 0x07c6, 0x0396 },
+  { 0x07c7, 0x0397 },
+  { 0x07c8, 0x0398 },
+  { 0x07c9, 0x0399 },
+  { 0x07ca, 0x039a },
+  { 0x07cb, 0x039b },
+  { 0x07cc, 0x039c },
+  { 0x07cd, 0x039d },
+  { 0x07ce, 0x039e },
+  { 0x07cf, 0x039f },
+  { 0x07d0, 0x03a0 },
+  { 0x07d1, 0x03a1 },
+  { 0x07d2, 0x03a3 },
+  { 0x07d4, 0x03a4 },
+  { 0x07d5, 0x03a5 },
+  { 0x07d6, 0x03a6 },
+  { 0x07d7, 0x03a7 },
+  { 0x07d8, 0x03a8 },
+  { 0x07d9, 0x03a9 },
+  { 0x07e1, 0x03b1 },
+  { 0x07e2, 0x03b2 },
+  { 0x07e3, 0x03b3 },
+  { 0x07e4, 0x03b4 },
+  { 0x07e5, 0x03b5 },
+  { 0x07e6, 0x03b6 },
+  { 0x07e7, 0x03b7 },
+  { 0x07e8, 0x03b8 },
+  { 0x07e9, 0x03b9 },
+  { 0x07ea, 0x03ba },
+  { 0x07eb, 0x03bb },
+  { 0x07ec, 0x03bc },
+  { 0x07ed, 0x03bd },
+  { 0x07ee, 0x03be },
+  { 0x07ef, 0x03bf },
+  { 0x07f0, 0x03c0 },
+  { 0x07f1, 0x03c1 },
+  { 0x07f2, 0x03c3 },
+  { 0x07f3, 0x03c2 },
+  { 0x07f4, 0x03c4 },
+  { 0x07f5, 0x03c5 },
+  { 0x07f6, 0x03c6 },
+  { 0x07f7, 0x03c7 },
+  { 0x07f8, 0x03c8 },
+  { 0x07f9, 0x03c9 },
+  { 0x08a1, 0x23b7 },
+  { 0x08a2, 0x250c },
+  { 0x08a3, 0x2500 },
+  { 0x08a4, 0x2320 },
+  { 0x08a5, 0x2321 },
+  { 0x08a6, 0x2502 },
+  { 0x08a7, 0x23a1 },
+  { 0x08a8, 0x23a3 },
+  { 0x08a9, 0x23a4 },
+  { 0x08aa, 0x23a6 },
+  { 0x08ab, 0x239b },
+  { 0x08ac, 0x239d },
+  { 0x08ad, 0x239e },
+  { 0x08ae, 0x23a0 },
+  { 0x08af, 0x23a8 },
+  { 0x08b0, 0x23ac },
+  { 0x08bc, 0x2264 },
+  { 0x08bd, 0x2260 },
+  { 0x08be, 0x2265 },
+  { 0x08bf, 0x222b },
+  { 0x08c0, 0x2234 },
+  { 0x08c1, 0x221d },
+  { 0x08c2, 0x221e },
+  { 0x08c5, 0x2207 },
+  { 0x08c8, 0x223c },
+  { 0x08c9, 0x2243 },
+  { 0x08cd, 0x21d4 },
+  { 0x08ce, 0x21d2 },
+  { 0x08cf, 0x2261 },
+  { 0x08d6, 0x221a },
+  { 0x08da, 0x2282 },
+  { 0x08db, 0x2283 },
+  { 0x08dc, 0x2229 },
+  { 0x08dd, 0x222a },
+  { 0x08de, 0x2227 },
+  { 0x08df, 0x2228 },
+  { 0x08ef, 0x2202 },
+  { 0x08f6, 0x0192 },
+  { 0x08fb, 0x2190 },
+  { 0x08fc, 0x2191 },
+  { 0x08fd, 0x2192 },
+  { 0x08fe, 0x2193 },
+  { 0x09e0, 0x25c6 },
+  { 0x09e1, 0x2592 },
+  { 0x09e2, 0x2409 },
+  { 0x09e3, 0x240c },
+  { 0x09e4, 0x240d },
+  { 0x09e5, 0x240a },
+  { 0x09e8, 0x2424 },
+  { 0x09e9, 0x240b },
+  { 0x09ea, 0x2518 },
+  { 0x09eb, 0x2510 },
+  { 0x09ec, 0x250c },
+  { 0x09ed, 0x2514 },
+  { 0x09ee, 0x253c },
+  { 0x09ef, 0x23ba },
+  { 0x09f0, 0x23bb },
+  { 0x09f1, 0x2500 },
+  { 0x09f2, 0x23bc },
+  { 0x09f3, 0x23bd },
+  { 0x09f4, 0x251c },
+  { 0x09f5, 0x2524 },
+  { 0x09f6, 0x2534 },
+  { 0x09f7, 0x252c },
+  { 0x09f8, 0x2502 },
+  { 0x0aa1, 0x2003 },
+  { 0x0aa2, 0x2002 },
+  { 0x0aa3, 0x2004 },
+  { 0x0aa4, 0x2005 },
+  { 0x0aa5, 0x2007 },
+  { 0x0aa6, 0x2008 },
+  { 0x0aa7, 0x2009 },
+  { 0x0aa8, 0x200a },
+  { 0x0aa9, 0x2014 },
+  { 0x0aaa, 0x2013 },
+  { 0x0aae, 0x2026 },
+  { 0x0aaf, 0x2025 },
+  { 0x0ab0, 0x2153 },
+  { 0x0ab1, 0x2154 },
+  { 0x0ab2, 0x2155 },
+  { 0x0ab3, 0x2156 },
+  { 0x0ab4, 0x2157 },
+  { 0x0ab5, 0x2158 },
+  { 0x0ab6, 0x2159 },
+  { 0x0ab7, 0x215a },
+  { 0x0ab8, 0x2105 },
+  { 0x0abb, 0x2012 },
+  { 0x0abc, 0x2329 },
+  { 0x0abe, 0x232a },
+  { 0x0ac3, 0x215b },
+  { 0x0ac4, 0x215c },
+  { 0x0ac5, 0x215d },
+  { 0x0ac6, 0x215e },
+  { 0x0ac9, 0x2122 },
+  { 0x0aca, 0x2613 },
+  { 0x0acc, 0x25c1 },
+  { 0x0acd, 0x25b7 },
+  { 0x0ace, 0x25cb },
+  { 0x0acf, 0x25af },
+  { 0x0ad0, 0x2018 },
+  { 0x0ad1, 0x2019 },
+  { 0x0ad2, 0x201c },
+  { 0x0ad3, 0x201d },
+  { 0x0ad4, 0x211e },
+  { 0x0ad6, 0x2032 },
+  { 0x0ad7, 0x2033 },
+  { 0x0ad9, 0x271d },
+  { 0x0adb, 0x25ac },
+  { 0x0adc, 0x25c0 },
+  { 0x0add, 0x25b6 },
+  { 0x0ade, 0x25cf },
+  { 0x0adf, 0x25ae },
+  { 0x0ae0, 0x25e6 },
+  { 0x0ae1, 0x25ab },
+  { 0x0ae2, 0x25ad },
+  { 0x0ae3, 0x25b3 },
+  { 0x0ae4, 0x25bd },
+  { 0x0ae5, 0x2606 },
+  { 0x0ae6, 0x2022 },
+  { 0x0ae7, 0x25aa },
+  { 0x0ae8, 0x25b2 },
+  { 0x0ae9, 0x25bc },
+  { 0x0aea, 0x261c },
+  { 0x0aeb, 0x261e },
+  { 0x0aec, 0x2663 },
+  { 0x0aed, 0x2666 },
+  { 0x0aee, 0x2665 },
+  { 0x0af0, 0x2720 },
+  { 0x0af1, 0x2020 },
+  { 0x0af2, 0x2021 },
+  { 0x0af3, 0x2713 },
+  { 0x0af4, 0x2717 },
+  { 0x0af5, 0x266f },
+  { 0x0af6, 0x266d },
+  { 0x0af7, 0x2642 },
+  { 0x0af8, 0x2640 },
+  { 0x0af9, 0x260e },
+  { 0x0afa, 0x2315 },
+  { 0x0afb, 0x2117 },
+  { 0x0afc, 0x2038 },
+  { 0x0afd, 0x201a },
+  { 0x0afe, 0x201e },
+  { 0x0ba3, 0x003c },
+  { 0x0ba6, 0x003e },
+  { 0x0ba8, 0x2228 },
+  { 0x0ba9, 0x2227 },
+  { 0x0bc0, 0x00af },
+  { 0x0bc2, 0x22a5 },
+  { 0x0bc3, 0x2229 },
+  { 0x0bc4, 0x230a },
+  { 0x0bc6, 0x005f },
+  { 0x0bca, 0x2218 },
+  { 0x0bcc, 0x2395 },
+  { 0x0bce, 0x22a4 },
+  { 0x0bcf, 0x25cb },
+  { 0x0bd3, 0x2308 },
+  { 0x0bd6, 0x222a },
+  { 0x0bd8, 0x2283 },
+  { 0x0bda, 0x2282 },
+  { 0x0bdc, 0x22a2 },
+  { 0x0bfc, 0x22a3 },
+  { 0x0cdf, 0x2017 },
+  { 0x0ce0, 0x05d0 },
+  { 0x0ce1, 0x05d1 },
+  { 0x0ce2, 0x05d2 },
+  { 0x0ce3, 0x05d3 },
+  { 0x0ce4, 0x05d4 },
+  { 0x0ce5, 0x05d5 },
+  { 0x0ce6, 0x05d6 },
+  { 0x0ce7, 0x05d7 },
+  { 0x0ce8, 0x05d8 },
+  { 0x0ce9, 0x05d9 },
+  { 0x0cea, 0x05da },
+  { 0x0ceb, 0x05db },
+  { 0x0cec, 0x05dc },
+  { 0x0ced, 0x05dd },
+  { 0x0cee, 0x05de },
+  { 0x0cef, 0x05df },
+  { 0x0cf0, 0x05e0 },
+  { 0x0cf1, 0x05e1 },
+  { 0x0cf2, 0x05e2 },
+  { 0x0cf3, 0x05e3 },
+  { 0x0cf4, 0x05e4 },
+  { 0x0cf5, 0x05e5 },
+  { 0x0cf6, 0x05e6 },
+  { 0x0cf7, 0x05e7 },
+  { 0x0cf8, 0x05e8 },
+  { 0x0cf9, 0x05e9 },
+  { 0x0cfa, 0x05ea },
+  { 0x0da1, 0x0e01 },
+  { 0x0da2, 0x0e02 },
+  { 0x0da3, 0x0e03 },
+  { 0x0da4, 0x0e04 },
+  { 0x0da5, 0x0e05 },
+  { 0x0da6, 0x0e06 },
+  { 0x0da7, 0x0e07 },
+  { 0x0da8, 0x0e08 },
+  { 0x0da9, 0x0e09 },
+  { 0x0daa, 0x0e0a },
+  { 0x0dab, 0x0e0b },
+  { 0x0dac, 0x0e0c },
+  { 0x0dad, 0x0e0d },
+  { 0x0dae, 0x0e0e },
+  { 0x0daf, 0x0e0f },
+  { 0x0db0, 0x0e10 },
+  { 0x0db1, 0x0e11 },
+  { 0x0db2, 0x0e12 },
+  { 0x0db3, 0x0e13 },
+  { 0x0db4, 0x0e14 },
+  { 0x0db5, 0x0e15 },
+  { 0x0db6, 0x0e16 },
+  { 0x0db7, 0x0e17 },
+  { 0x0db8, 0x0e18 },
+  { 0x0db9, 0x0e19 },
+  { 0x0dba, 0x0e1a },
+  { 0x0dbb, 0x0e1b },
+  { 0x0dbc, 0x0e1c },
+  { 0x0dbd, 0x0e1d },
+  { 0x0dbe, 0x0e1e },
+  { 0x0dbf, 0x0e1f },
+  { 0x0dc0, 0x0e20 },
+  { 0x0dc1, 0x0e21 },
+  { 0x0dc2, 0x0e22 },
+  { 0x0dc3, 0x0e23 },
+  { 0x0dc4, 0x0e24 },
+  { 0x0dc5, 0x0e25 },
+  { 0x0dc6, 0x0e26 },
+  { 0x0dc7, 0x0e27 },
+  { 0x0dc8, 0x0e28 },
+  { 0x0dc9, 0x0e29 },
+  { 0x0dca, 0x0e2a },
+  { 0x0dcb, 0x0e2b },
+  { 0x0dcc, 0x0e2c },
+  { 0x0dcd, 0x0e2d },
+  { 0x0dce, 0x0e2e },
+  { 0x0dcf, 0x0e2f },
+  { 0x0dd0, 0x0e30 },
+  { 0x0dd1, 0x0e31 },
+  { 0x0dd2, 0x0e32 },
+  { 0x0dd3, 0x0e33 },
+  { 0x0dd4, 0x0e34 },
+  { 0x0dd5, 0x0e35 },
+  { 0x0dd6, 0x0e36 },
+  { 0x0dd7, 0x0e37 },
+  { 0x0dd8, 0x0e38 },
+  { 0x0dd9, 0x0e39 },
+  { 0x0dda, 0x0e3a },
+  { 0x0ddf, 0x0e3f },
+  { 0x0de0, 0x0e40 },
+  { 0x0de1, 0x0e41 },
+  { 0x0de2, 0x0e42 },
+  { 0x0de3, 0x0e43 },
+  { 0x0de4, 0x0e44 },
+  { 0x0de5, 0x0e45 },
+  { 0x0de6, 0x0e46 },
+  { 0x0de7, 0x0e47 },
+  { 0x0de8, 0x0e48 },
+  { 0x0de9, 0x0e49 },
+  { 0x0dea, 0x0e4a },
+  { 0x0deb, 0x0e4b },
+  { 0x0dec, 0x0e4c },
+  { 0x0ded, 0x0e4d },
+  { 0x0df0, 0x0e50 },
+  { 0x0df1, 0x0e51 },
+  { 0x0df2, 0x0e52 },
+  { 0x0df3, 0x0e53 },
+  { 0x0df4, 0x0e54 },
+  { 0x0df5, 0x0e55 },
+  { 0x0df6, 0x0e56 },
+  { 0x0df7, 0x0e57 },
+  { 0x0df8, 0x0e58 },
+  { 0x0df9, 0x0e59 },
+  { 0x0ea1, 0x3131 },
+  { 0x0ea2, 0x3132 },
+  { 0x0ea3, 0x3133 },
+  { 0x0ea4, 0x3134 },
+  { 0x0ea5, 0x3135 },
+  { 0x0ea6, 0x3136 },
+  { 0x0ea7, 0x3137 },
+  { 0x0ea8, 0x3138 },
+  { 0x0ea9, 0x3139 },
+  { 0x0eaa, 0x313a },
+  { 0x0eab, 0x313b },
+  { 0x0eac, 0x313c },
+  { 0x0ead, 0x313d },
+  { 0x0eae, 0x313e },
+  { 0x0eaf, 0x313f },
+  { 0x0eb0, 0x3140 },
+  { 0x0eb1, 0x3141 },
+  { 0x0eb2, 0x3142 },
+  { 0x0eb3, 0x3143 },
+  { 0x0eb4, 0x3144 },
+  { 0x0eb5, 0x3145 },
+  { 0x0eb6, 0x3146 },
+  { 0x0eb7, 0x3147 },
+  { 0x0eb8, 0x3148 },
+  { 0x0eb9, 0x3149 },
+  { 0x0eba, 0x314a },
+  { 0x0ebb, 0x314b },
+  { 0x0ebc, 0x314c },
+  { 0x0ebd, 0x314d },
+  { 0x0ebe, 0x314e },
+  { 0x0ebf, 0x314f },
+  { 0x0ec0, 0x3150 },
+  { 0x0ec1, 0x3151 },
+  { 0x0ec2, 0x3152 },
+  { 0x0ec3, 0x3153 },
+  { 0x0ec4, 0x3154 },
+  { 0x0ec5, 0x3155 },
+  { 0x0ec6, 0x3156 },
+  { 0x0ec7, 0x3157 },
+  { 0x0ec8, 0x3158 },
+  { 0x0ec9, 0x3159 },
+  { 0x0eca, 0x315a },
+  { 0x0ecb, 0x315b },
+  { 0x0ecc, 0x315c },
+  { 0x0ecd, 0x315d },
+  { 0x0ece, 0x315e },
+  { 0x0ecf, 0x315f },
+  { 0x0ed0, 0x3160 },
+  { 0x0ed1, 0x3161 },
+  { 0x0ed2, 0x3162 },
+  { 0x0ed3, 0x3163 },
+  { 0x0ed4, 0x11a8 },
+  { 0x0ed5, 0x11a9 },
+  { 0x0ed6, 0x11aa },
+  { 0x0ed7, 0x11ab },
+  { 0x0ed8, 0x11ac },
+  { 0x0ed9, 0x11ad },
+  { 0x0eda, 0x11ae },
+  { 0x0edb, 0x11af },
+  { 0x0edc, 0x11b0 },
+  { 0x0edd, 0x11b1 },
+  { 0x0ede, 0x11b2 },
+  { 0x0edf, 0x11b3 },
+  { 0x0ee0, 0x11b4 },
+  { 0x0ee1, 0x11b5 },
+  { 0x0ee2, 0x11b6 },
+  { 0x0ee3, 0x11b7 },
+  { 0x0ee4, 0x11b8 },
+  { 0x0ee5, 0x11b9 },
+  { 0x0ee6, 0x11ba },
+  { 0x0ee7, 0x11bb },
+  { 0x0ee8, 0x11bc },
+  { 0x0ee9, 0x11bd },
+  { 0x0eea, 0x11be },
+  { 0x0eeb, 0x11bf },
+  { 0x0eec, 0x11c0 },
+  { 0x0eed, 0x11c1 },
+  { 0x0eee, 0x11c2 },
+  { 0x0eef, 0x316d },
+  { 0x0ef0, 0x3171 },
+  { 0x0ef1, 0x3178 },
+  { 0x0ef2, 0x317f },
+  { 0x0ef3, 0x3181 },
+  { 0x0ef4, 0x3184 },
+  { 0x0ef5, 0x3186 },
+  { 0x0ef6, 0x318d },
+  { 0x0ef7, 0x318e },
+  { 0x0ef8, 0x11eb },
+  { 0x0ef9, 0x11f0 },
+  { 0x0efa, 0x11f9 },
+  { 0x0eff, 0x20a9 },
+  { 0x13a4, 0x20ac },
+  { 0x13bc, 0x0152 },
+  { 0x13bd, 0x0153 },
+  { 0x13be, 0x0178 },
+  { 0x20ac, 0x20ac },
+  { 0xfe50,    '`' },
+  { 0xfe51, 0x00b4 },
+  { 0xfe52,    '^' },
+  { 0xfe53,    '~' },
+  { 0xfe54, 0x00af },
+  { 0xfe55, 0x02d8 },
+  { 0xfe56, 0x02d9 },
+  { 0xfe57, 0x00a8 },
+  { 0xfe58, 0x02da },
+  { 0xfe59, 0x02dd },
+  { 0xfe5a, 0x02c7 },
+  { 0xfe5b, 0x00b8 },
+  { 0xfe5c, 0x02db },
+  { 0xfe5d, 0x037a },
+  { 0xfe5e, 0x309b },
+  { 0xfe5f, 0x309c },
+  { 0xfe63,    '/' },
+  { 0xfe64, 0x02bc },
+  { 0xfe65, 0x02bd },
+  { 0xfe66, 0x02f5 },
+  { 0xfe67, 0x02f3 },
+  { 0xfe68, 0x02cd },
+  { 0xfe69, 0xa788 },
+  { 0xfe6a, 0x02f7 },
+  { 0xfe6e,    ',' },
+  { 0xfe6f, 0x00a4 },
+  { 0xfe80,    'a' }, // XK_dead_a
+  { 0xfe81,    'A' }, // XK_dead_A
+  { 0xfe82,    'e' }, // XK_dead_e
+  { 0xfe83,    'E' }, // XK_dead_E
+  { 0xfe84,    'i' }, // XK_dead_i
+  { 0xfe85,    'I' }, // XK_dead_I
+  { 0xfe86,    'o' }, // XK_dead_o
+  { 0xfe87,    'O' }, // XK_dead_O
+  { 0xfe88,    'u' }, // XK_dead_u
+  { 0xfe89,    'U' }, // XK_dead_U
+  { 0xfe8a, 0x0259 },
+  { 0xfe8b, 0x018f },
+  { 0xfe8c, 0x00b5 },
+  { 0xfe90,    '_' },
+  { 0xfe91, 0x02c8 },
+  { 0xfe92, 0x02cc },
+  { 0xff80 /*XKB_KEY_KP_Space*/,     ' ' },
+  { 0xff95 /*XKB_KEY_KP_7*/, 0x0037 },
+  { 0xff96 /*XKB_KEY_KP_4*/, 0x0034 },
+  { 0xff97 /*XKB_KEY_KP_8*/, 0x0038 },
+  { 0xff98 /*XKB_KEY_KP_6*/, 0x0036 },
+  { 0xff99 /*XKB_KEY_KP_2*/, 0x0032 },
+  { 0xff9a /*XKB_KEY_KP_9*/, 0x0039 },
+  { 0xff9b /*XKB_KEY_KP_3*/, 0x0033 },
+  { 0xff9c /*XKB_KEY_KP_1*/, 0x0031 },
+  { 0xff9d /*XKB_KEY_KP_5*/, 0x0035 },
+  { 0xff9e /*XKB_KEY_KP_0*/, 0x0030 },
+  { 0xffaa /*XKB_KEY_KP_Multiply*/,  '*' },
+  { 0xffab /*XKB_KEY_KP_Add*/,       '+' },
+  { 0xffac /*XKB_KEY_KP_Separator*/, ',' },
+  { 0xffad /*XKB_KEY_KP_Subtract*/,  '-' },
+  { 0xffae /*XKB_KEY_KP_Decimal*/,   '.' },
+  { 0xffaf /*XKB_KEY_KP_Divide*/,    '/' },
+  { 0xffb0 /*XKB_KEY_KP_0*/, 0x0030 },
+  { 0xffb1 /*XKB_KEY_KP_1*/, 0x0031 },
+  { 0xffb2 /*XKB_KEY_KP_2*/, 0x0032 },
+  { 0xffb3 /*XKB_KEY_KP_3*/, 0x0033 },
+  { 0xffb4 /*XKB_KEY_KP_4*/, 0x0034 },
+  { 0xffb5 /*XKB_KEY_KP_5*/, 0x0035 },
+  { 0xffb6 /*XKB_KEY_KP_6*/, 0x0036 },
+  { 0xffb7 /*XKB_KEY_KP_7*/, 0x0037 },
+  { 0xffb8 /*XKB_KEY_KP_8*/, 0x0038 },
+  { 0xffb9 /*XKB_KEY_KP_9*/, 0x0039 },
+  { 0xffbd /*XKB_KEY_KP_Equal*/,     '=' }
+};
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Convert XKB KeySym to Unicode
+//
+uint32_t _glfwKeySym2Unicode(unsigned int keysym)
+{
+    int min = 0;
+    int max = sizeof(keysymtab) / sizeof(struct codepair) - 1;
+    int mid;
+
+    // First check for Latin-1 characters (1:1 mapping)
+    if ((keysym >= 0x0020 && keysym <= 0x007e) ||
+        (keysym >= 0x00a0 && keysym <= 0x00ff))
+    {
+        return keysym;
+    }
+
+    // Also check for directly encoded 24-bit UCS characters
+    if ((keysym & 0xff000000) == 0x01000000)
+        return keysym & 0x00ffffff;
+
+    // Binary search in table
+    while (max >= min)
+    {
+        mid = (min + max) / 2;
+        if (keysymtab[mid].keysym < keysym)
+            min = mid + 1;
+        else if (keysymtab[mid].keysym > keysym)
+            max = mid - 1;
+        else
+            return keysymtab[mid].ucs;
+    }
+
+    // No matching Unicode value found
+    return GLFW_INVALID_CODEPOINT;
+}
+
+#endif // _GLFW_WAYLAND or _GLFW_X11
+

raylib/external/glfw/src/xkb_unicode.h

@@ -0,0 +1,30 @@
+//========================================================================
+// GLFW 3.4 Linux - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2014 Jonas Ådahl <jadahl@gmail.com>
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would
+//    be appreciated but is not required.
+//
+// 2. Altered source versions must be plainly marked as such, and must not
+//    be misrepresented as being the original software.
+//
+// 3. This notice may not be removed or altered from any source
+//    distribution.
+//
+//========================================================================
+
+#define GLFW_INVALID_CODEPOINT 0xffffffffu
+
+uint32_t _glfwKeySym2Unicode(unsigned int keysym);
+

raylib/external/msf_gif.h

@@ -0,0 +1,717 @@
+/*
+HOW TO USE:
+
+    In exactly one translation unit (.c or .cpp file), #define MSF_GIF_IMPL before including the header, like so:
+
+    #define MSF_GIF_IMPL
+    #include "msf_gif.h"
+
+    Everywhere else, just include the header like normal.
+
+
+USAGE EXAMPLE:
+
+    int width = 480, height = 320, centisecondsPerFrame = 5, bitDepth = 16;
+    MsfGifState gifState = {};
+    // msf_gif_bgra_flag = true; //optionally, set this flag if your pixels are in BGRA format instead of RGBA
+    // msf_gif_alpha_threshold = 128; //optionally, enable transparency (see function documentation below for details)
+    msf_gif_begin(&gifState, width, height);
+    msf_gif_frame(&gifState, ..., centisecondsPerFrame, bitDepth, width * 4); //frame 1
+    msf_gif_frame(&gifState, ..., centisecondsPerFrame, bitDepth, width * 4); //frame 2
+    msf_gif_frame(&gifState, ..., centisecondsPerFrame, bitDepth, width * 4); //frame 3, etc...
+    MsfGifResult result = msf_gif_end(&gifState);
+    if (result.data) {
+        FILE * fp = fopen("MyGif.gif", "wb");
+        fwrite(result.data, result.dataSize, 1, fp);
+        fclose(fp);
+    }
+    msf_gif_free(result);
+
+Detailed function documentation can be found in the header section below.
+
+
+ERROR HANDLING:
+
+    If memory allocation fails, the functions will signal the error via their return values.
+    If one function call fails, the library will free all of its allocations,
+    and all subsequent calls will safely no-op and return 0 until the next call to `msf_gif_begin()`.
+    Therefore, it's safe to check only the return value of `msf_gif_end()`.
+
+
+REPLACING MALLOC:
+
+    This library uses malloc+realloc+free internally for memory allocation.
+    To facilitate integration with custom memory allocators, these calls go through macros, which can be redefined.
+    The expected function signature equivalents of the macros are as follows:
+
+    void * MSF_GIF_MALLOC(void * context, size_t newSize)
+    void * MSF_GIF_REALLOC(void * context, void * oldMemory, size_t oldSize, size_t newSize)
+    void MSF_GIF_FREE(void * context, void * oldMemory, size_t oldSize)
+
+    If your allocator needs a context pointer, you can set the `customAllocatorContext` field of the MsfGifState struct
+    before calling msf_gif_begin(), and it will be passed to all subsequent allocator macro calls.
+
+    The maximum number of bytes the library will allocate to encode a single gif is bounded by the following formula:
+    `(2 * 1024 * 1024) + (width * height * 8) + ((1024 + width * height * 1.5) * 3 * frameCount)`
+    The peak heap memory usage in bytes, if using a general-purpose heap allocator, is bounded by the following formula:
+    `(2 * 1024 * 1024) + (width * height * 9.5) + 1024 + (16 * frameCount) + (2 * sizeOfResultingGif)
+
+
+See end of file for license information.
+*/
+
+//version 2.2
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/// HEADER                                                                                                           ///
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#ifndef MSF_GIF_H
+#define MSF_GIF_H
+
+#include <stdint.h>
+#include <stddef.h>
+
+typedef struct {
+    void * data;
+    size_t dataSize;
+
+    size_t allocSize; //internal use
+    void * contextPointer; //internal use
+} MsfGifResult;
+
+typedef struct { //internal use
+    uint32_t * pixels;
+    int depth, count, rbits, gbits, bbits;
+} MsfCookedFrame;
+
+typedef struct MsfGifBuffer {
+    struct MsfGifBuffer * next;
+    size_t size;
+    uint8_t data[1];
+} MsfGifBuffer;
+
+typedef size_t (* MsfGifFileWriteFunc) (const void * buffer, size_t size, size_t count, void * stream);
+typedef struct {
+    MsfGifFileWriteFunc fileWriteFunc;
+    void * fileWriteData;
+    MsfCookedFrame previousFrame;
+    MsfCookedFrame currentFrame;
+    int16_t * lzwMem;
+    MsfGifBuffer * listHead;
+    MsfGifBuffer * listTail;
+    int width, height;
+    void * customAllocatorContext;
+    int framesSubmitted; //needed for transparency to work correctly (because we reach into the previous frame)
+} MsfGifState;
+
+#ifdef __cplusplus
+extern "C" {
+#endif //__cplusplus
+
+/**
+ * @param width                Image width in pixels.
+ * @param height               Image height in pixels.
+ * @return                     Non-zero on success, 0 on error.
+ */
+int msf_gif_begin(MsfGifState * handle, int width, int height);
+
+/**
+ * @param pixelData            Pointer to raw framebuffer data. Rows must be contiguous in memory, in RGBA8 format
+ *                             (or BGRA8 if you have set `msf_gif_bgra_flag = true`).
+ *                             Note: This function does NOT free `pixelData`. You must free it yourself afterwards.
+ * @param centiSecondsPerFrame How many hundredths of a second this frame should be displayed for.
+ *                             Note: This being specified in centiseconds is a limitation of the GIF format.
+ * @param maxBitDepth          Limits how many bits per pixel can be used when quantizing the gif.
+ *                             The actual bit depth chosen for a given frame will be less than or equal to
+ *                             the supplied maximum, depending on the variety of colors used in the frame.
+ *                             `maxBitDepth` will be clamped between 1 and 16. The recommended default is 16.
+ *                             Lowering this value can result in faster exports and smaller gifs,
+ *                             but the quality may suffer.
+ *                             Please experiment with this value to find what works best for your application.
+ * @param pitchInBytes         The number of bytes from the beginning of one row of pixels to the beginning of the next.
+ *                             If you want to flip the image, just pass in a negative pitch.
+ * @return                     Non-zero on success, 0 on error.
+ */
+int msf_gif_frame(MsfGifState * handle, uint8_t * pixelData, int centiSecondsPerFame, int maxBitDepth, int pitchInBytes);
+
+/**
+ * @return                     A block of memory containing the gif file data, or NULL on error.
+ *                             You are responsible for freeing this via `msf_gif_free()`.
+ */
+MsfGifResult msf_gif_end(MsfGifState * handle);
+
+/**
+ * @param result                The MsfGifResult struct, verbatim as it was returned from `msf_gif_end()`.
+ */
+void msf_gif_free(MsfGifResult result);
+
+//The gif format only supports 1-bit transparency, meaning a pixel will either be fully transparent or fully opaque.
+//Pixels with an alpha value less than the alpha threshold will be treated as transparent.
+//To enable exporting transparent gifs, set it to a value between 1 and 255 (inclusive) before calling msf_gif_frame().
+//Setting it to 0 causes the alpha channel to be ignored. Its initial value is 0.
+extern int msf_gif_alpha_threshold;
+
+//Set `msf_gif_bgra_flag = true` before calling `msf_gif_frame()` if your pixels are in BGRA byte order instead of RBGA.
+extern int msf_gif_bgra_flag;
+
+
+
+//TO-FILE FUNCTIONS
+//These functions are equivalent to the ones above, but they write results to a file incrementally,
+//instead of building a buffer in memory. This can result in lower memory usage when saving large gifs,
+//because memory usage is bounded by only the size of a single frame, and is not dependent on the number of frames.
+//There is currently no reason to use these unless you are on a memory-constrained platform.
+//If in doubt about which API to use, for now you should use the normal (non-file) functions above.
+//The signature of MsfGifFileWriteFunc matches fwrite for convenience, so that you can use the C file API like so:
+//  FILE * fp = fopen("MyGif.gif", "wb");
+//  msf_gif_begin_to_file(&handle, width, height, (MsfGifFileWriteFunc) fwrite, (void *) fp);
+//  msf_gif_frame_to_file(...)
+//  msf_gif_end_to_file(&handle);
+//  fclose(fp);
+//If you use a custom file write function, you must take care to return the same values that fwrite() would return.
+//Note that all three functions will potentially write to the file.
+int msf_gif_begin_to_file(MsfGifState * handle, int width, int height, MsfGifFileWriteFunc func, void * filePointer);
+int msf_gif_frame_to_file(MsfGifState * handle, uint8_t * pixelData, int centiSecondsPerFame, int maxBitDepth, int pitchInBytes);
+int msf_gif_end_to_file(MsfGifState * handle); //returns 0 on error and non-zero on success
+
+#ifdef __cplusplus
+}
+#endif //__cplusplus
+
+#endif //MSF_GIF_H
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/// IMPLEMENTATION                                                                                                   ///
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#ifdef MSF_GIF_IMPL
+#ifndef MSF_GIF_ALREADY_IMPLEMENTED_IN_THIS_TRANSLATION_UNIT
+#define MSF_GIF_ALREADY_IMPLEMENTED_IN_THIS_TRANSLATION_UNIT
+
+//ensure the library user has either defined all of malloc/realloc/free, or none
+#if defined(MSF_GIF_MALLOC) && defined(MSF_GIF_REALLOC) && defined(MSF_GIF_FREE) //ok
+#elif !defined(MSF_GIF_MALLOC) && !defined(MSF_GIF_REALLOC) && !defined(MSF_GIF_FREE) //ok
+#else
+#error "You must either define all of MSF_GIF_MALLOC, MSF_GIF_REALLOC, and MSF_GIF_FREE, or define none of them"
+#endif
+
+//provide default allocator definitions that redirect to the standard global allocator
+#if !defined(MSF_GIF_MALLOC)
+#include <stdlib.h> //malloc, etc.
+#define MSF_GIF_MALLOC(contextPointer, newSize) malloc(newSize)
+#define MSF_GIF_REALLOC(contextPointer, oldMemory, oldSize, newSize) realloc(oldMemory, newSize)
+#define MSF_GIF_FREE(contextPointer, oldMemory, oldSize) free(oldMemory)
+#endif
+
+//instrumentation for capturing profiling traces (useless for the library user, but useful for the library author)
+#ifdef MSF_GIF_ENABLE_TRACING
+#define MsfTimeFunc TimeFunc
+#define MsfTimeLoop TimeLoop
+#define msf_init_profiling_thread init_profiling_thread
+#else
+#define MsfTimeFunc
+#define MsfTimeLoop(name)
+#define msf_init_profiling_thread()
+#endif //MSF_GIF_ENABLE_TRACING
+
+#include <string.h> //memcpy
+
+//TODO: use compiler-specific notation to force-inline functions currently marked inline
+#if defined(__GNUC__) //gcc, clang
+static inline int msf_bit_log(int i) { return 32 - __builtin_clz(i); }
+#elif defined(_MSC_VER) //msvc
+#include <intrin.h>
+static inline int msf_bit_log(int i) { unsigned long idx; _BitScanReverse(&idx, i); return idx + 1; }
+#else //fallback implementation for other compilers
+//from https://stackoverflow.com/a/31718095/3064745 - thanks!
+static inline int msf_bit_log(int i) {
+    static const int MultiplyDeBruijnBitPosition[32] = {
+        0, 9, 1, 10, 13, 21, 2, 29, 11, 14, 16, 18, 22, 25, 3, 30,
+        8, 12, 20, 28, 15, 17, 24, 7, 19, 27, 23, 6, 26, 5, 4, 31,
+    };
+    i |= i >> 1;
+    i |= i >> 2;
+    i |= i >> 4;
+    i |= i >> 8;
+    i |= i >> 16;
+    return MultiplyDeBruijnBitPosition[(uint32_t)(i * 0x07C4ACDDU) >> 27] + 1;
+}
+#endif
+static inline int msf_imin(int a, int b) { return a < b? a : b; }
+static inline int msf_imax(int a, int b) { return b < a? a : b; }
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/// Frame Cooking                                                                                                    ///
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+#if (defined (__SSE2__) || defined (_M_X64) || _M_IX86_FP == 2) && !defined(MSF_GIF_NO_SSE2)
+#include <emmintrin.h>
+#endif
+
+int msf_gif_alpha_threshold = 0;
+int msf_gif_bgra_flag = 0;
+
+static void msf_cook_frame(MsfCookedFrame * frame, uint8_t * raw, uint8_t * used,
+                           int width, int height, int pitch, int depth)
+{ MsfTimeFunc
+    //bit depth for each channel
+    static const int rdepthsArray[17] = { 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5 };
+    static const int gdepthsArray[17] = { 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6 };
+    static const int bdepthsArray[17] = { 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5 };
+    //this extra level of indirection looks unnecessary but we need to explicitly decay the arrays to pointers
+    //in order to be able to swap them because of C's annoying not-quite-pointers, not-quite-value-types stack arrays.
+    const int * rdepths = msf_gif_bgra_flag? bdepthsArray : rdepthsArray;
+    const int * gdepths =                                   gdepthsArray;
+    const int * bdepths = msf_gif_bgra_flag? rdepthsArray : bdepthsArray;
+
+    static const int ditherKernel[16] = {
+         0 << 12,  8 << 12,  2 << 12, 10 << 12,
+        12 << 12,  4 << 12, 14 << 12,  6 << 12,
+         3 << 12, 11 << 12,  1 << 12,  9 << 12,
+        15 << 12,  7 << 12, 13 << 12,  5 << 12,
+    };
+
+    uint32_t * cooked = frame->pixels;
+    int count = 0;
+    MsfTimeLoop("do") do {
+        int rbits = rdepths[depth], gbits = gdepths[depth], bbits = bdepths[depth];
+        int paletteSize = (1 << (rbits + gbits + bbits)) + 1;
+        memset(used, 0, paletteSize * sizeof(uint8_t));
+
+        //TODO: document what this math does and why it's correct
+        int rdiff = (1 << (8 - rbits)) - 1;
+        int gdiff = (1 << (8 - gbits)) - 1;
+        int bdiff = (1 << (8 - bbits)) - 1;
+        short rmul = (short) ((255.0f - rdiff) / 255.0f * 257);
+        short gmul = (short) ((255.0f - gdiff) / 255.0f * 257);
+        short bmul = (short) ((255.0f - bdiff) / 255.0f * 257);
+
+        int gmask = ((1 << gbits) - 1) << rbits;
+        int bmask = ((1 << bbits) - 1) << rbits << gbits;
+
+        MsfTimeLoop("cook") for (int y = 0; y < height; ++y) {
+            int x = 0;
+
+            #if (defined (__SSE2__) || defined (_M_X64) || _M_IX86_FP == 2) && !defined(MSF_GIF_NO_SSE2)
+                __m128i k = _mm_loadu_si128((__m128i *) &ditherKernel[(y & 3) * 4]);
+                __m128i k2 = _mm_or_si128(_mm_srli_epi32(k, rbits), _mm_slli_epi32(_mm_srli_epi32(k, bbits), 16));
+                for (; x < width - 3; x += 4) {
+                    uint8_t * pixels = &raw[y * pitch + x * 4];
+                    __m128i p = _mm_loadu_si128((__m128i *) pixels);
+
+                    __m128i rb = _mm_and_si128(p, _mm_set1_epi32(0x00FF00FF));
+                    __m128i rb1 = _mm_mullo_epi16(rb, _mm_set_epi16(bmul, rmul, bmul, rmul, bmul, rmul, bmul, rmul));
+                    __m128i rb2 = _mm_adds_epu16(rb1, k2);
+                    __m128i r3 = _mm_srli_epi32(_mm_and_si128(rb2, _mm_set1_epi32(0x0000FFFF)), 16 - rbits);
+                    __m128i b3 = _mm_and_si128(_mm_srli_epi32(rb2, 32 - rbits - gbits - bbits), _mm_set1_epi32(bmask));
+
+                    __m128i g = _mm_and_si128(_mm_srli_epi32(p, 8), _mm_set1_epi32(0x000000FF));
+                    __m128i g1 = _mm_mullo_epi16(g, _mm_set1_epi32(gmul));
+                    __m128i g2 = _mm_adds_epu16(g1, _mm_srli_epi32(k, gbits));
+                    __m128i g3 = _mm_and_si128(_mm_srli_epi32(g2, 16 - rbits - gbits), _mm_set1_epi32(gmask));
+
+                    __m128i out = _mm_or_si128(_mm_or_si128(r3, g3), b3);
+
+                    //mask in transparency based on threshold
+                    //NOTE: we can theoretically do a sub instead of srli by doing an unsigned compare via bias
+                    //      to maybe save a TINY amount of throughput? but lol who cares maybe I'll do it later -m
+                    __m128i invAlphaMask = _mm_cmplt_epi32(_mm_srli_epi32(p, 24), _mm_set1_epi32(msf_gif_alpha_threshold));
+                    out = _mm_or_si128(_mm_and_si128(invAlphaMask, _mm_set1_epi32(paletteSize - 1)), _mm_andnot_si128(invAlphaMask, out));
+
+                    //TODO: does storing this as a __m128i then reading it back as a uint32_t violate strict aliasing?
+                    uint32_t * c = &cooked[y * width + x];
+                    _mm_storeu_si128((__m128i *) c, out);
+                }
+            #endif
+
+            //scalar cleanup loop
+            for (; x < width; ++x) {
+                uint8_t * p = &raw[y * pitch + x * 4];
+
+                //transparent pixel if alpha is low
+                if (p[3] < msf_gif_alpha_threshold) {
+                    cooked[y * width + x] = paletteSize - 1;
+                    continue;
+                }
+
+                int dx = x & 3, dy = y & 3;
+                int k = ditherKernel[dy * 4 + dx];
+                cooked[y * width + x] =
+                    (msf_imin(65535, p[2] * bmul + (k >> bbits)) >> (16 - rbits - gbits - bbits) & bmask) |
+                    (msf_imin(65535, p[1] * gmul + (k >> gbits)) >> (16 - rbits - gbits        ) & gmask) |
+                     msf_imin(65535, p[0] * rmul + (k >> rbits)) >> (16 - rbits                );
+            }
+        }
+
+        count = 0;
+        MsfTimeLoop("mark") for (int i = 0; i < width * height; ++i) {
+            used[cooked[i]] = 1;
+        }
+
+        //count used colors, transparent is ignored
+        MsfTimeLoop("count") for (int j = 0; j < paletteSize - 1; ++j) {
+            count += used[j];
+        }
+    } while (count >= 256 && --depth);
+
+    MsfCookedFrame ret = { cooked, depth, count, rdepths[depth], gdepths[depth], bdepths[depth] };
+    *frame = ret;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/// Frame Compression                                                                                                ///
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+static inline void msf_put_code(uint8_t * * writeHead, uint32_t * blockBits, int len, uint32_t code) {
+    //insert new code into block buffer
+    int idx = *blockBits / 8;
+    int bit = *blockBits % 8;
+    (*writeHead)[idx + 0] |= code <<       bit ;
+    (*writeHead)[idx + 1] |= code >> ( 8 - bit);
+    (*writeHead)[idx + 2] |= code >> (16 - bit);
+    *blockBits += len;
+
+    //prep the next block buffer if the current one is full
+    if (*blockBits >= 256 * 8) {
+        *blockBits -= 255 * 8;
+        (*writeHead) += 256;
+        (*writeHead)[2] = (*writeHead)[1];
+        (*writeHead)[1] = (*writeHead)[0];
+        (*writeHead)[0] = 255;
+        memset((*writeHead) + 4, 0, 256);
+    }
+}
+
+typedef struct {
+    int16_t * data;
+    int len;
+    int stride;
+} MsfStridedList;
+
+static inline void msf_lzw_reset(MsfStridedList * lzw, int tableSize, int stride) { MsfTimeFunc
+    memset(lzw->data, 0xFF, 4096 * stride * sizeof(int16_t));
+    lzw->len = tableSize + 2;
+    lzw->stride = stride;
+}
+
+static MsfGifBuffer * msf_compress_frame(void * allocContext, int width, int height, int centiSeconds,
+                                         MsfCookedFrame frame, MsfGifState * handle, uint8_t * used, int16_t * lzwMem)
+{ MsfTimeFunc
+    //NOTE: we reserve enough memory for theoretical the worst case upfront because it's a reasonable amount,
+    //      and prevents us from ever having to check size or realloc during compression
+    int maxBufSize = offsetof(MsfGifBuffer, data) + 32 + 256 * 3 + width * height * 3 / 2; //headers + color table + data
+    MsfGifBuffer * buffer = (MsfGifBuffer *) MSF_GIF_MALLOC(allocContext, maxBufSize);
+    if (!buffer) { return NULL; }
+    uint8_t * writeHead = buffer->data;
+    MsfStridedList lzw = { lzwMem, 0, 0 };
+
+    //allocate tlb
+    int totalBits = frame.rbits + frame.gbits + frame.bbits;
+    int tlbSize = (1 << totalBits) + 1;
+    uint8_t tlb[(1 << 16) + 1]; //only 64k, so stack allocating is fine
+
+    //generate palette
+    typedef struct { uint8_t r, g, b; } Color3;
+    Color3 table[256] = { {0} };
+    int tableIdx = 1; //we start counting at 1 because 0 is the transparent color
+    //transparent is always last in the table
+    tlb[tlbSize-1] = 0;
+    MsfTimeLoop("table") for (int i = 0; i < tlbSize-1; ++i) {
+        if (used[i]) {
+            tlb[i] = tableIdx;
+            int rmask = (1 << frame.rbits) - 1;
+            int gmask = (1 << frame.gbits) - 1;
+            //isolate components
+            int r = i & rmask;
+            int g = i >> frame.rbits & gmask;
+            int b = i >> (frame.rbits + frame.gbits);
+            //shift into highest bits
+            r <<= 8 - frame.rbits;
+            g <<= 8 - frame.gbits;
+            b <<= 8 - frame.bbits;
+            table[tableIdx].r = r | r >> frame.rbits | r >> (frame.rbits * 2) | r >> (frame.rbits * 3);
+            table[tableIdx].g = g | g >> frame.gbits | g >> (frame.gbits * 2) | g >> (frame.gbits * 3);
+            table[tableIdx].b = b | b >> frame.bbits | b >> (frame.bbits * 2) | b >> (frame.bbits * 3);
+            if (msf_gif_bgra_flag) {
+                uint8_t temp = table[tableIdx].r;
+                table[tableIdx].r = table[tableIdx].b;
+                table[tableIdx].b = temp;
+            }
+            ++tableIdx;
+        }
+    }
+    int hasTransparentPixels = used[tlbSize-1];
+
+    //SPEC: "Because of some algorithmic constraints however, black & white images which have one color bit
+    //       must be indicated as having a code size of 2."
+    int tableBits = msf_imax(2, msf_bit_log(tableIdx - 1));
+    int tableSize = 1 << tableBits;
+    //NOTE: we don't just compare `depth` field here because it will be wrong for the first frame and we will segfault
+    MsfCookedFrame previous = handle->previousFrame;
+    int hasSamePal = frame.rbits == previous.rbits && frame.gbits == previous.gbits && frame.bbits == previous.bbits;
+    int framesCompatible = hasSamePal && !hasTransparentPixels;
+
+    //NOTE: because __attribute__((__packed__)) is annoyingly compiler-specific, we do this unreadable weirdness
+    char headerBytes[19] = "\x21\xF9\x04\x05\0\0\0\0" "\x2C\0\0\0\0\0\0\0\0\x80";
+    //NOTE: we need to check the frame number because if we reach into the buffer prior to the first frame,
+    //      we'll just clobber the file header instead, which is a bug
+    if (hasTransparentPixels && handle->framesSubmitted > 0) {
+        handle->listTail->data[3] = 0x09; //set the previous frame's disposal to background, so transparency is possible
+    }
+    memcpy(&headerBytes[4], &centiSeconds, 2);
+    memcpy(&headerBytes[13], &width, 2);
+    memcpy(&headerBytes[15], &height, 2);
+    headerBytes[17] |= tableBits - 1;
+    memcpy(writeHead, headerBytes, 18);
+    writeHead += 18;
+
+    //local color table
+    memcpy(writeHead, table, tableSize * sizeof(Color3));
+    writeHead += tableSize * sizeof(Color3);
+    *writeHead++ = tableBits;
+
+    //prep block
+    memset(writeHead, 0, 260);
+    writeHead[0] = 255;
+    uint32_t blockBits = 8; //relative to block.head
+
+    //SPEC: "Encoders should output a Clear code as the first code of each image data stream."
+    msf_lzw_reset(&lzw, tableSize, tableIdx);
+    msf_put_code(&writeHead, &blockBits, msf_bit_log(lzw.len - 1), tableSize);
+
+    int lastCode = framesCompatible && frame.pixels[0] == previous.pixels[0]? 0 : tlb[frame.pixels[0]];
+    MsfTimeLoop("compress") for (int i = 1; i < width * height; ++i) {
+        //PERF: branching vs. branchless version of this line is observed to have no discernable impact on speed
+        int color = framesCompatible && frame.pixels[i] == previous.pixels[i]? 0 : tlb[frame.pixels[i]];
+        int code = (&lzw.data[lastCode * lzw.stride])[color];
+        if (code < 0) {
+            //write to code stream
+            int codeBits = msf_bit_log(lzw.len - 1);
+            msf_put_code(&writeHead, &blockBits, codeBits, lastCode);
+
+            if (lzw.len > 4095) {
+                //reset buffer code table
+                msf_put_code(&writeHead, &blockBits, codeBits, tableSize);
+                msf_lzw_reset(&lzw, tableSize, tableIdx);
+            } else {
+                (&lzw.data[lastCode * lzw.stride])[color] = lzw.len;
+                ++lzw.len;
+            }
+
+            lastCode = color;
+        } else {
+            lastCode = code;
+        }
+    }
+
+    //write code for leftover index buffer contents, then the end code
+    msf_put_code(&writeHead, &blockBits, msf_imin(12, msf_bit_log(lzw.len - 1)), lastCode);
+    msf_put_code(&writeHead, &blockBits, msf_imin(12, msf_bit_log(lzw.len)), tableSize + 1);
+
+    //flush remaining data
+    if (blockBits > 8) {
+        int bytes = (blockBits + 7) / 8; //round up
+        writeHead[0] = bytes - 1;
+        writeHead += bytes;
+    }
+    *writeHead++ = 0; //terminating block
+
+    //fill in buffer header and shrink buffer to fit data
+    buffer->next = NULL;
+    buffer->size = writeHead - buffer->data;
+    MsfGifBuffer * moved =
+        (MsfGifBuffer *) MSF_GIF_REALLOC(allocContext, buffer, maxBufSize, offsetof(MsfGifBuffer, data) + buffer->size);
+    if (!moved) { MSF_GIF_FREE(allocContext, buffer, maxBufSize); return NULL; }
+    return moved;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/// To-memory API                                                                                                    ///
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+static const int lzwAllocSize = 4096 * 256 * sizeof(int16_t);
+
+//NOTE: by C standard library conventions, freeing NULL should be a no-op,
+//      but just in case the user's custom free doesn't follow that rule, we do null checks on our end as well.
+static void msf_free_gif_state(MsfGifState * handle) {
+    if (handle->previousFrame.pixels) MSF_GIF_FREE(handle->customAllocatorContext, handle->previousFrame.pixels,
+                                                   handle->width * handle->height * sizeof(uint32_t));
+    if (handle->currentFrame.pixels)  MSF_GIF_FREE(handle->customAllocatorContext, handle->currentFrame.pixels,
+                                                   handle->width * handle->height * sizeof(uint32_t));
+    if (handle->lzwMem) MSF_GIF_FREE(handle->customAllocatorContext, handle->lzwMem, lzwAllocSize);
+    for (MsfGifBuffer * node = handle->listHead; node;) {
+        MsfGifBuffer * next = node->next; //NOTE: we have to copy the `next` pointer BEFORE freeing the node holding it
+        MSF_GIF_FREE(handle->customAllocatorContext, node, offsetof(MsfGifBuffer, data) + node->size);
+        node = next;
+    }
+    handle->listHead = NULL; //this implicitly marks the handle as invalid until the next msf_gif_begin() call
+}
+
+int msf_gif_begin(MsfGifState * handle, int width, int height) { MsfTimeFunc
+    //NOTE: we cannot stomp the entire struct to zero because we must preserve `customAllocatorContext`.
+    MsfCookedFrame empty = {0}; //god I hate MSVC...
+    handle->previousFrame = empty;
+    handle->currentFrame = empty;
+    handle->width = width;
+    handle->height = height;
+    handle->framesSubmitted = 0;
+
+    //allocate memory for LZW buffer
+    //NOTE: Unfortunately we can't just use stack memory for the LZW table because it's 2MB,
+    //      which is more stack space than most operating systems give by default,
+    //      and we can't realistically expect users to be willing to override that just to use our library,
+    //      so we have to allocate this on the heap.
+    handle->lzwMem = (int16_t *) MSF_GIF_MALLOC(handle->customAllocatorContext, lzwAllocSize);
+    handle->previousFrame.pixels =
+        (uint32_t *) MSF_GIF_MALLOC(handle->customAllocatorContext, handle->width * handle->height * sizeof(uint32_t));
+    handle->currentFrame.pixels =
+        (uint32_t *) MSF_GIF_MALLOC(handle->customAllocatorContext, handle->width * handle->height * sizeof(uint32_t));
+
+    //setup header buffer header (lol)
+    handle->listHead = (MsfGifBuffer *) MSF_GIF_MALLOC(handle->customAllocatorContext, offsetof(MsfGifBuffer, data) + 32);
+    if (!handle->listHead || !handle->lzwMem || !handle->previousFrame.pixels || !handle->currentFrame.pixels) {
+        msf_free_gif_state(handle);
+        return 0;
+    }
+    handle->listTail = handle->listHead;
+    handle->listHead->next = NULL;
+    handle->listHead->size = 32;
+
+    //NOTE: because __attribute__((__packed__)) is annoyingly compiler-specific, we do this unreadable weirdness
+    char headerBytes[33] = "GIF89a\0\0\0\0\x70\0\0" "\x21\xFF\x0BNETSCAPE2.0\x03\x01\0\0\0";
+    memcpy(&headerBytes[6], &width, 2);
+    memcpy(&headerBytes[8], &height, 2);
+    memcpy(handle->listHead->data, headerBytes, 32);
+    return 1;
+}
+
+int msf_gif_frame(MsfGifState * handle, uint8_t * pixelData, int centiSecondsPerFame, int maxBitDepth, int pitchInBytes)
+{ MsfTimeFunc
+    if (!handle->listHead) { return 0; }
+
+    maxBitDepth = msf_imax(1, msf_imin(16, maxBitDepth));
+    if (pitchInBytes == 0) pitchInBytes = handle->width * 4;
+    if (pitchInBytes < 0) pixelData -= pitchInBytes * (handle->height - 1);
+
+    uint8_t used[(1 << 16) + 1]; //only 64k, so stack allocating is fine
+    msf_cook_frame(&handle->currentFrame, pixelData, used, handle->width, handle->height, pitchInBytes,
+        msf_imin(maxBitDepth, handle->previousFrame.depth + 160 / msf_imax(1, handle->previousFrame.count)));
+
+    MsfGifBuffer * buffer = msf_compress_frame(handle->customAllocatorContext, handle->width, handle->height,
+        centiSecondsPerFame, handle->currentFrame, handle, used, handle->lzwMem);
+    if (!buffer) { msf_free_gif_state(handle); return 0; }
+    handle->listTail->next = buffer;
+    handle->listTail = buffer;
+
+    //swap current and previous frames
+    MsfCookedFrame tmp = handle->previousFrame;
+    handle->previousFrame = handle->currentFrame;
+    handle->currentFrame = tmp;
+
+    handle->framesSubmitted += 1;
+    return 1;
+}
+
+MsfGifResult msf_gif_end(MsfGifState * handle) { MsfTimeFunc
+    if (!handle->listHead) { MsfGifResult empty = {0}; return empty; }
+
+    //first pass: determine total size
+    size_t total = 1; //1 byte for trailing marker
+    for (MsfGifBuffer * node = handle->listHead; node; node = node->next) { total += node->size; }
+
+    //second pass: write data
+    uint8_t * buffer = (uint8_t *) MSF_GIF_MALLOC(handle->customAllocatorContext, total);
+    if (buffer) {
+        uint8_t * writeHead = buffer;
+        for (MsfGifBuffer * node = handle->listHead; node; node = node->next) {
+            memcpy(writeHead, node->data, node->size);
+            writeHead += node->size;
+        }
+        *writeHead++ = 0x3B;
+    }
+
+    //third pass: free buffers
+    msf_free_gif_state(handle);
+
+    MsfGifResult ret = { buffer, total, total, handle->customAllocatorContext };
+    return ret;
+}
+
+void msf_gif_free(MsfGifResult result) { MsfTimeFunc
+    if (result.data) { MSF_GIF_FREE(result.contextPointer, result.data, result.allocSize); }
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/// To-file API                                                                                                      ///
+////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+int msf_gif_begin_to_file(MsfGifState * handle, int width, int height, MsfGifFileWriteFunc func, void * filePointer) {
+    handle->fileWriteFunc = func;
+    handle->fileWriteData = filePointer;
+    return msf_gif_begin(handle, width, height);
+}
+
+int msf_gif_frame_to_file(MsfGifState * handle, uint8_t * pixelData, int centiSecondsPerFame, int maxBitDepth, int pitchInBytes) {
+    if (!msf_gif_frame(handle, pixelData, centiSecondsPerFame, maxBitDepth, pitchInBytes)) { return 0; }
+
+    //NOTE: this is a somewhat hacky implementation which is not perfectly efficient, but it's good enough for now
+    MsfGifBuffer * head = handle->listHead;
+    if (!handle->fileWriteFunc(head->data, head->size, 1, handle->fileWriteData)) { msf_free_gif_state(handle); return 0; }
+    handle->listHead = head->next;
+    MSF_GIF_FREE(handle->customAllocatorContext, head, offsetof(MsfGifBuffer, data) + head->size);
+    return 1;
+}
+
+int msf_gif_end_to_file(MsfGifState * handle) {
+    //NOTE: this is a somewhat hacky implementation which is not perfectly efficient, but it's good enough for now
+    MsfGifResult result = msf_gif_end(handle);
+    int ret = (int) handle->fileWriteFunc(result.data, result.dataSize, 1, handle->fileWriteData);
+    msf_gif_free(result);
+    return ret;
+}
+
+#endif //MSF_GIF_ALREADY_IMPLEMENTED_IN_THIS_TRANSLATION_UNIT
+#endif //MSF_GIF_IMPL
+
+/*
+------------------------------------------------------------------------------
+This software is available under 2 licenses -- choose whichever you prefer.
+------------------------------------------------------------------------------
+ALTERNATIVE A - MIT License
+Copyright (c) 2021 Miles Fogle
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+------------------------------------------------------------------------------
+ALTERNATIVE B - Public Domain (www.unlicense.org)
+This is free and unencumbered software released into the public domain.
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+------------------------------------------------------------------------------
+*/

raylib/external/qoa.h

@@ -0,0 +1,742 @@
+/*
+
+Copyright (c) 2023, Dominic Szablewski - https://phoboslab.org
+SPDX-License-Identifier: MIT
+
+QOA - The "Quite OK Audio" format for fast, lossy audio compression
+
+
+-- Data Format
+
+QOA encodes pulse-code modulated (PCM) audio data with up to 255 channels, 
+sample rates from 1 up to 16777215 hertz and a bit depth of 16 bits.
+
+The compression method employed in QOA is lossy; it discards some information
+from the uncompressed PCM data. For many types of audio signals this compression
+is "transparent", i.e. the difference from the original file is often not
+audible.
+
+QOA encodes 20 samples of 16 bit PCM data into slices of 64 bits. A single
+sample therefore requires 3.2 bits of storage space, resulting in a 5x
+compression (16 / 3.2).
+
+A QOA file consists of an 8 byte file header, followed by a number of frames.
+Each frame contains an 8 byte frame header, the current 16 byte en-/decoder
+state per channel and 256 slices per channel. Each slice is 8 bytes wide and
+encodes 20 samples of audio data.
+
+All values, including the slices, are big endian. The file layout is as follows:
+
+struct {
+	struct {
+		char     magic[4];         // magic bytes "qoaf"
+		uint32_t samples;          // samples per channel in this file
+	} file_header;             
+
+	struct {
+		struct {
+			uint8_t  num_channels; // no. of channels
+			uint24_t samplerate;   // samplerate in hz
+			uint16_t fsamples;     // samples per channel in this frame
+			uint16_t fsize;        // frame size (includes this header)
+		} frame_header;          
+
+		struct {
+			int16_t history[4];    // most recent last
+			int16_t weights[4];    // most recent last
+		} lms_state[num_channels]; 
+
+		qoa_slice_t slices[256][num_channels];
+
+	} frames[ceil(samples / (256 * 20))];
+} qoa_file_t;
+
+Each `qoa_slice_t` contains a quantized scalefactor `sf_quant` and 20 quantized
+residuals `qrNN`:
+
+.- QOA_SLICE -- 64 bits, 20 samples --------------------------/  /------------.
+|        Byte[0]         |        Byte[1]         |  Byte[2]  \  \  Byte[7]   |
+| 7  6  5  4  3  2  1  0 | 7  6  5  4  3  2  1  0 | 7  6  5   /  /    2  1  0 |
+|------------+--------+--------+--------+---------+---------+-\  \--+---------|
+|  sf_quant  |  qr00  |  qr01  |  qr02  |  qr03   |  qr04   | /  /  |  qr19   |
+`-------------------------------------------------------------\  \------------`
+
+Each frame except the last must contain exactly 256 slices per channel. The last
+frame may contain between 1 .. 256 (inclusive) slices per channel. The last
+slice (for each channel) in the last frame may contain less than 20 samples; the
+slice still must be 8 bytes wide, with the unused samples zeroed out.
+
+Channels are interleaved per slice. E.g. for 2 channel stereo: 
+slice[0] = L, slice[1] = R, slice[2] = L, slice[3] = R ...
+
+A valid QOA file or stream must have at least one frame. Each frame must contain
+at least one channel and one sample with a samplerate between 1 .. 16777215
+(inclusive).
+
+If the total number of samples is not known by the encoder, the samples in the
+file header may be set to 0x00000000 to indicate that the encoder is 
+"streaming". In a streaming context, the samplerate and number of channels may
+differ from frame to frame. For static files (those with samples set to a
+non-zero value), each frame must have the same number of channels and same
+samplerate.
+
+Note that this implementation of QOA only handles files with a known total
+number of samples.
+
+A decoder should support at least 8 channels. The channel layout for channel
+counts 1 .. 8 is:
+
+	1. Mono
+	2. L, R
+	3. L, R, C 
+	4. FL, FR, B/SL, B/SR 
+	5. FL, FR, C, B/SL, B/SR 
+	6. FL, FR, C, LFE, B/SL, B/SR
+	7. FL, FR, C, LFE, B, SL, SR 
+	8. FL, FR, C, LFE, BL, BR, SL, SR
+
+QOA predicts each audio sample based on the previously decoded ones using a
+"Sign-Sign Least Mean Squares Filter" (LMS). This prediction plus the 
+dequantized residual forms the final output sample.
+
+*/
+
+
+
+/* -----------------------------------------------------------------------------
+	Header - Public functions */
+
+#ifndef QOA_H
+#define QOA_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define QOA_MIN_FILESIZE 16
+#define QOA_MAX_CHANNELS 8
+
+#define QOA_SLICE_LEN 20
+#define QOA_SLICES_PER_FRAME 256
+#define QOA_FRAME_LEN (QOA_SLICES_PER_FRAME * QOA_SLICE_LEN)
+#define QOA_LMS_LEN 4
+#define QOA_MAGIC 0x716f6166 /* 'qoaf' */
+
+#define QOA_FRAME_SIZE(channels, slices) \
+	(8 + QOA_LMS_LEN * 4 * channels + 8 * slices * channels)
+
+typedef struct {
+	int history[QOA_LMS_LEN];
+	int weights[QOA_LMS_LEN];
+} qoa_lms_t;
+
+typedef struct {
+	unsigned int channels;
+	unsigned int samplerate;
+	unsigned int samples;
+	qoa_lms_t lms[QOA_MAX_CHANNELS];
+	#ifdef QOA_RECORD_TOTAL_ERROR
+		double error;
+	#endif
+} qoa_desc;
+
+unsigned int qoa_encode_header(qoa_desc *qoa, unsigned char *bytes);
+unsigned int qoa_encode_frame(const short *sample_data, qoa_desc *qoa, unsigned int frame_len, unsigned char *bytes);
+void *qoa_encode(const short *sample_data, qoa_desc *qoa, unsigned int *out_len);
+
+unsigned int qoa_max_frame_size(qoa_desc *qoa);
+unsigned int qoa_decode_header(const unsigned char *bytes, int size, qoa_desc *qoa);
+unsigned int qoa_decode_frame(const unsigned char *bytes, unsigned int size, qoa_desc *qoa, short *sample_data, unsigned int *frame_len);
+short *qoa_decode(const unsigned char *bytes, int size, qoa_desc *file);
+
+#ifndef QOA_NO_STDIO
+
+int qoa_write(const char *filename, const short *sample_data, qoa_desc *qoa);
+void *qoa_read(const char *filename, qoa_desc *qoa);
+
+#endif /* QOA_NO_STDIO */
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* QOA_H */
+
+
+/* -----------------------------------------------------------------------------
+	Implementation */
+
+#ifdef QOA_IMPLEMENTATION
+#include <stdlib.h>
+
+#ifndef QOA_MALLOC
+	#define QOA_MALLOC(sz) malloc(sz)
+	#define QOA_FREE(p) free(p)
+#endif
+
+typedef unsigned long long qoa_uint64_t;
+
+
+/* The quant_tab provides an index into the dequant_tab for residuals in the
+range of -8 .. 8. It maps this range to just 3bits and becomes less accurate at 
+the higher end. Note that the residual zero is identical to the lowest positive 
+value. This is mostly fine, since the qoa_div() function always rounds away 
+from zero. */
+
+static const int qoa_quant_tab[17] = {
+	7, 7, 7, 5, 5, 3, 3, 1, /* -8..-1 */
+	0,                      /*  0     */
+	0, 2, 2, 4, 4, 6, 6, 6  /*  1.. 8 */
+};
+
+
+/* We have 16 different scalefactors. Like the quantized residuals these become
+less accurate at the higher end. In theory, the highest scalefactor that we
+would need to encode the highest 16bit residual is (2**16)/8 = 8192. However we
+rely on the LMS filter to predict samples accurately enough that a maximum 
+residual of one quarter of the 16 bit range is sufficient. I.e. with the 
+scalefactor 2048 times the quant range of 8 we can encode residuals up to 2**14.
+
+The scalefactor values are computed as:
+scalefactor_tab[s] <- round(pow(s + 1, 2.75)) */
+
+static const int qoa_scalefactor_tab[16] = {
+	1, 7, 21, 45, 84, 138, 211, 304, 421, 562, 731, 928, 1157, 1419, 1715, 2048
+};
+
+
+/* The reciprocal_tab maps each of the 16 scalefactors to their rounded 
+reciprocals 1/scalefactor. This allows us to calculate the scaled residuals in 
+the encoder with just one multiplication instead of an expensive division. We 
+do this in .16 fixed point with integers, instead of floats.
+
+The reciprocal_tab is computed as:
+reciprocal_tab[s] <- ((1<<16) + scalefactor_tab[s] - 1) / scalefactor_tab[s] */
+
+static const int qoa_reciprocal_tab[16] = {
+	65536, 9363, 3121, 1457, 781, 475, 311, 216, 156, 117, 90, 71, 57, 47, 39, 32
+};
+
+
+/* The dequant_tab maps each of the scalefactors and quantized residuals to 
+their unscaled & dequantized version.
+
+Since qoa_div rounds away from the zero, the smallest entries are mapped to 3/4
+instead of 1. The dequant_tab assumes the following dequantized values for each 
+of the quant_tab indices and is computed as:
+float dqt[8] = {0.75, -0.75, 2.5, -2.5, 4.5, -4.5, 7, -7};
+dequant_tab[s][q] <- round_ties_away_from_zero(scalefactor_tab[s] * dqt[q])
+
+The rounding employed here is "to nearest, ties away from zero",  i.e. positive
+and negative values are treated symmetrically.
+*/
+
+static const int qoa_dequant_tab[16][8] = {
+	{   1,    -1,    3,    -3,    5,    -5,     7,     -7},
+	{   5,    -5,   18,   -18,   32,   -32,    49,    -49},
+	{  16,   -16,   53,   -53,   95,   -95,   147,   -147},
+	{  34,   -34,  113,  -113,  203,  -203,   315,   -315},
+	{  63,   -63,  210,  -210,  378,  -378,   588,   -588},
+	{ 104,  -104,  345,  -345,  621,  -621,   966,   -966},
+	{ 158,  -158,  528,  -528,  950,  -950,  1477,  -1477},
+	{ 228,  -228,  760,  -760, 1368, -1368,  2128,  -2128},
+	{ 316,  -316, 1053, -1053, 1895, -1895,  2947,  -2947},
+	{ 422,  -422, 1405, -1405, 2529, -2529,  3934,  -3934},
+	{ 548,  -548, 1828, -1828, 3290, -3290,  5117,  -5117},
+	{ 696,  -696, 2320, -2320, 4176, -4176,  6496,  -6496},
+	{ 868,  -868, 2893, -2893, 5207, -5207,  8099,  -8099},
+	{1064, -1064, 3548, -3548, 6386, -6386,  9933,  -9933},
+	{1286, -1286, 4288, -4288, 7718, -7718, 12005, -12005},
+	{1536, -1536, 5120, -5120, 9216, -9216, 14336, -14336},
+};
+
+
+/* The Least Mean Squares Filter is the heart of QOA. It predicts the next
+sample based on the previous 4 reconstructed samples. It does so by continuously
+adjusting 4 weights based on the residual of the previous prediction.
+
+The next sample is predicted as the sum of (weight[i] * history[i]).
+
+The adjustment of the weights is done with a "Sign-Sign-LMS" that adds or
+subtracts the residual to each weight, based on the corresponding sample from 
+the history. This, surprisingly, is sufficient to get worthwhile predictions.
+
+This is all done with fixed point integers. Hence the right-shifts when updating
+the weights and calculating the prediction. */
+
+static int qoa_lms_predict(qoa_lms_t *lms) {
+	int prediction = 0;
+	for (int i = 0; i < QOA_LMS_LEN; i++) {
+		prediction += lms->weights[i] * lms->history[i];
+	}
+	return prediction >> 13;
+}
+
+static void qoa_lms_update(qoa_lms_t *lms, int sample, int residual) {
+	int delta = residual >> 4;
+	for (int i = 0; i < QOA_LMS_LEN; i++) {
+		lms->weights[i] += lms->history[i] < 0 ? -delta : delta;
+	}
+
+	for (int i = 0; i < QOA_LMS_LEN-1; i++) {
+		lms->history[i] = lms->history[i+1];
+	}
+	lms->history[QOA_LMS_LEN-1] = sample;
+}
+
+
+/* qoa_div() implements a rounding division, but avoids rounding to zero for 
+small numbers. E.g. 0.1 will be rounded to 1. Note that 0 itself still 
+returns as 0, which is handled in the qoa_quant_tab[].
+qoa_div() takes an index into the .16 fixed point qoa_reciprocal_tab as an
+argument, so it can do the division with a cheaper integer multiplication. */
+
+static inline int qoa_div(int v, int scalefactor) {
+	int reciprocal = qoa_reciprocal_tab[scalefactor];
+	int n = (v * reciprocal + (1 << 15)) >> 16;
+	n = n + ((v > 0) - (v < 0)) - ((n > 0) - (n < 0)); /* round away from 0 */
+	return n;
+}
+
+static inline int qoa_clamp(int v, int min, int max) {
+	if (v < min) { return min; }
+	if (v > max) { return max; }
+	return v;
+}
+
+/* This specialized clamp function for the signed 16 bit range improves decode
+performance quite a bit. The extra if() statement works nicely with the CPUs
+branch prediction as this branch is rarely taken. */
+
+static inline int qoa_clamp_s16(int v) {
+	if ((unsigned int)(v + 32768) > 65535) {
+		if (v < -32768) { return -32768; }
+		if (v >  32767) { return  32767; }
+	}
+	return v;
+}
+
+static inline qoa_uint64_t qoa_read_u64(const unsigned char *bytes, unsigned int *p) {
+	bytes += *p;
+	*p += 8;
+	return 
+		((qoa_uint64_t)(bytes[0]) << 56) | ((qoa_uint64_t)(bytes[1]) << 48) |
+		((qoa_uint64_t)(bytes[2]) << 40) | ((qoa_uint64_t)(bytes[3]) << 32) |
+		((qoa_uint64_t)(bytes[4]) << 24) | ((qoa_uint64_t)(bytes[5]) << 16) |
+		((qoa_uint64_t)(bytes[6]) <<  8) | ((qoa_uint64_t)(bytes[7]) <<  0);
+}
+
+static inline void qoa_write_u64(qoa_uint64_t v, unsigned char *bytes, unsigned int *p) {
+	bytes += *p;
+	*p += 8;
+	bytes[0] = (v >> 56) & 0xff;
+	bytes[1] = (v >> 48) & 0xff;
+	bytes[2] = (v >> 40) & 0xff;
+	bytes[3] = (v >> 32) & 0xff;
+	bytes[4] = (v >> 24) & 0xff;
+	bytes[5] = (v >> 16) & 0xff;
+	bytes[6] = (v >>  8) & 0xff;
+	bytes[7] = (v >>  0) & 0xff;
+}
+
+
+/* -----------------------------------------------------------------------------
+	Encoder */
+
+unsigned int qoa_encode_header(qoa_desc *qoa, unsigned char *bytes) {
+	unsigned int p = 0;
+	qoa_write_u64(((qoa_uint64_t)QOA_MAGIC << 32) | qoa->samples, bytes, &p);
+	return p;
+}
+
+unsigned int qoa_encode_frame(const short *sample_data, qoa_desc *qoa, unsigned int frame_len, unsigned char *bytes) {
+	unsigned int channels = qoa->channels;
+
+	unsigned int p = 0;
+	unsigned int slices = (frame_len + QOA_SLICE_LEN - 1) / QOA_SLICE_LEN;
+	unsigned int frame_size = QOA_FRAME_SIZE(channels, slices);
+	int prev_scalefactor[QOA_MAX_CHANNELS] = {0};
+
+	/* Write the frame header */
+	qoa_write_u64((
+		(qoa_uint64_t)qoa->channels   << 56 |
+		(qoa_uint64_t)qoa->samplerate << 32 |
+		(qoa_uint64_t)frame_len       << 16 |
+		(qoa_uint64_t)frame_size
+	), bytes, &p);
+
+	
+	for (unsigned int c = 0; c < channels; c++) {
+		/* Write the current LMS state */
+		qoa_uint64_t weights = 0;
+		qoa_uint64_t history = 0;
+		for (int i = 0; i < QOA_LMS_LEN; i++) {
+			history = (history << 16) | (qoa->lms[c].history[i] & 0xffff);
+			weights = (weights << 16) | (qoa->lms[c].weights[i] & 0xffff);
+		}
+		qoa_write_u64(history, bytes, &p);
+		qoa_write_u64(weights, bytes, &p);
+	}
+
+	/* We encode all samples with the channels interleaved on a slice level.
+	E.g. for stereo: (ch-0, slice 0), (ch 1, slice 0), (ch 0, slice 1), ...*/
+	for (unsigned int sample_index = 0; sample_index < frame_len; sample_index += QOA_SLICE_LEN) {
+
+		for (unsigned int c = 0; c < channels; c++) {
+			int slice_len = qoa_clamp(QOA_SLICE_LEN, 0, frame_len - sample_index);
+			int slice_start = sample_index * channels + c;
+			int slice_end = (sample_index + slice_len) * channels + c;			
+
+			/* Brute for search for the best scalefactor. Just go through all
+			16 scalefactors, encode all samples for the current slice and 
+			meassure the total squared error. */
+			qoa_uint64_t best_rank = -1;
+			#ifdef QOA_RECORD_TOTAL_ERROR
+				qoa_uint64_t best_error = -1;
+			#endif
+			qoa_uint64_t best_slice = 0;
+			qoa_lms_t best_lms;
+			int best_scalefactor = 0;
+
+			for (int sfi = 0; sfi < 16; sfi++) {
+				/* There is a strong correlation between the scalefactors of
+				neighboring slices. As an optimization, start testing
+				the best scalefactor of the previous slice first. */
+				int scalefactor = (sfi + prev_scalefactor[c]) % 16;
+
+				/* We have to reset the LMS state to the last known good one
+				before trying each scalefactor, as each pass updates the LMS
+				state when encoding. */
+				qoa_lms_t lms = qoa->lms[c];
+				qoa_uint64_t slice = scalefactor;
+				qoa_uint64_t current_rank = 0;
+				#ifdef QOA_RECORD_TOTAL_ERROR
+					qoa_uint64_t current_error = 0;
+				#endif
+
+				for (int si = slice_start; si < slice_end; si += channels) {
+					int sample = sample_data[si];
+					int predicted = qoa_lms_predict(&lms);
+
+					int residual = sample - predicted;
+					int scaled = qoa_div(residual, scalefactor);
+					int clamped = qoa_clamp(scaled, -8, 8);
+					int quantized = qoa_quant_tab[clamped + 8];
+					int dequantized = qoa_dequant_tab[scalefactor][quantized];
+					int reconstructed = qoa_clamp_s16(predicted + dequantized);
+
+
+					/* If the weights have grown too large, we introduce a penalty
+					here. This prevents pops/clicks in certain problem cases */
+					int weights_penalty = ((
+						lms.weights[0] * lms.weights[0] + 
+						lms.weights[1] * lms.weights[1] + 
+						lms.weights[2] * lms.weights[2] + 
+						lms.weights[3] * lms.weights[3]
+					) >> 18) - 0x8ff;
+					if (weights_penalty < 0) {
+						weights_penalty = 0;
+					}
+
+					long long error = (sample - reconstructed);
+					qoa_uint64_t error_sq = error * error;
+
+					current_rank += error_sq + weights_penalty * weights_penalty;
+					#ifdef QOA_RECORD_TOTAL_ERROR
+						current_error += error_sq;
+					#endif
+					if (current_rank > best_rank) {
+						break;
+					}
+
+					qoa_lms_update(&lms, reconstructed, dequantized);
+					slice = (slice << 3) | quantized;
+				}
+
+				if (current_rank < best_rank) {
+					best_rank = current_rank;
+					#ifdef QOA_RECORD_TOTAL_ERROR
+						best_error = current_error;
+					#endif
+					best_slice = slice;
+					best_lms = lms;
+					best_scalefactor = scalefactor;
+				}
+			}
+
+			prev_scalefactor[c] = best_scalefactor;
+
+			qoa->lms[c] = best_lms;
+			#ifdef QOA_RECORD_TOTAL_ERROR
+				qoa->error += best_error;
+			#endif
+
+			/* If this slice was shorter than QOA_SLICE_LEN, we have to left-
+			shift all encoded data, to ensure the rightmost bits are the empty
+			ones. This should only happen in the last frame of a file as all
+			slices are completely filled otherwise. */
+			best_slice <<= (QOA_SLICE_LEN - slice_len) * 3;
+			qoa_write_u64(best_slice, bytes, &p);
+		}
+	}
+	
+	return p;
+}
+
+void *qoa_encode(const short *sample_data, qoa_desc *qoa, unsigned int *out_len) {
+	if (
+		qoa->samples == 0 || 
+		qoa->samplerate == 0 || qoa->samplerate > 0xffffff ||
+		qoa->channels == 0 || qoa->channels > QOA_MAX_CHANNELS
+	) {
+		return NULL;
+	}
+
+	/* Calculate the encoded size and allocate */
+	unsigned int num_frames = (qoa->samples + QOA_FRAME_LEN-1) / QOA_FRAME_LEN;
+	unsigned int num_slices = (qoa->samples + QOA_SLICE_LEN-1) / QOA_SLICE_LEN;
+	unsigned int encoded_size = 8 +                    /* 8 byte file header */
+		num_frames * 8 +                               /* 8 byte frame headers */
+		num_frames * QOA_LMS_LEN * 4 * qoa->channels + /* 4 * 4 bytes lms state per channel */
+		num_slices * 8 * qoa->channels;                /* 8 byte slices */
+
+	unsigned char *bytes = QOA_MALLOC(encoded_size);
+
+	for (unsigned int c = 0; c < qoa->channels; c++) {
+		/* Set the initial LMS weights to {0, 0, -1, 2}. This helps with the 
+		prediction of the first few ms of a file. */
+		qoa->lms[c].weights[0] = 0;
+		qoa->lms[c].weights[1] = 0;
+		qoa->lms[c].weights[2] = -(1<<13);
+		qoa->lms[c].weights[3] =  (1<<14);
+
+		/* Explicitly set the history samples to 0, as we might have some
+		garbage in there. */
+		for (int i = 0; i < QOA_LMS_LEN; i++) {
+			qoa->lms[c].history[i] = 0;
+		}
+	}
+
+
+	/* Encode the header and go through all frames */
+	unsigned int p = qoa_encode_header(qoa, bytes);
+	#ifdef QOA_RECORD_TOTAL_ERROR
+		qoa->error = 0;
+	#endif
+
+	int frame_len = QOA_FRAME_LEN;
+	for (unsigned int sample_index = 0; sample_index < qoa->samples; sample_index += frame_len) {
+		frame_len = qoa_clamp(QOA_FRAME_LEN, 0, qoa->samples - sample_index);		
+		const short *frame_samples = sample_data + sample_index * qoa->channels;
+		unsigned int frame_size = qoa_encode_frame(frame_samples, qoa, frame_len, bytes + p);
+		p += frame_size;
+	}
+
+	*out_len = p;
+	return bytes;
+}
+
+
+
+/* -----------------------------------------------------------------------------
+	Decoder */
+
+unsigned int qoa_max_frame_size(qoa_desc *qoa) {
+	return QOA_FRAME_SIZE(qoa->channels, QOA_SLICES_PER_FRAME);
+}
+
+unsigned int qoa_decode_header(const unsigned char *bytes, int size, qoa_desc *qoa) {
+	unsigned int p = 0;
+	if (size < QOA_MIN_FILESIZE) {
+		return 0;
+	}
+
+
+	/* Read the file header, verify the magic number ('qoaf') and read the 
+	total number of samples. */
+	qoa_uint64_t file_header = qoa_read_u64(bytes, &p);
+
+	if ((file_header >> 32) != QOA_MAGIC) {
+		return 0;
+	}
+
+	qoa->samples = file_header & 0xffffffff;
+	if (!qoa->samples) {
+		return 0;
+	}
+
+	/* Peek into the first frame header to get the number of channels and
+	the samplerate. */
+	qoa_uint64_t frame_header = qoa_read_u64(bytes, &p);
+	qoa->channels   = (frame_header >> 56) & 0x0000ff;
+	qoa->samplerate = (frame_header >> 32) & 0xffffff;
+
+	if (qoa->channels == 0 || qoa->samples == 0 || qoa->samplerate == 0) {
+		return 0;
+	}
+
+	return 8;
+}
+
+unsigned int qoa_decode_frame(const unsigned char *bytes, unsigned int size, qoa_desc *qoa, short *sample_data, unsigned int *frame_len) {
+	unsigned int p = 0;
+	*frame_len = 0;
+
+	if (size < 8 + QOA_LMS_LEN * 4 * qoa->channels) {
+		return 0;
+	}
+
+	/* Read and verify the frame header */
+	qoa_uint64_t frame_header = qoa_read_u64(bytes, &p);
+	unsigned int channels   = (frame_header >> 56) & 0x0000ff;
+	unsigned int samplerate = (frame_header >> 32) & 0xffffff;
+	unsigned int samples    = (frame_header >> 16) & 0x00ffff;
+	unsigned int frame_size = (frame_header      ) & 0x00ffff;
+
+	unsigned int data_size = frame_size - 8 - QOA_LMS_LEN * 4 * channels;
+	unsigned int num_slices = data_size / 8;
+	unsigned int max_total_samples = num_slices * QOA_SLICE_LEN;
+
+	if (
+		channels != qoa->channels || 
+		samplerate != qoa->samplerate ||
+		frame_size > size ||
+		samples * channels > max_total_samples
+	) {
+		return 0;
+	}
+
+
+	/* Read the LMS state: 4 x 2 bytes history, 4 x 2 bytes weights per channel */
+	for (unsigned int c = 0; c < channels; c++) {
+		qoa_uint64_t history = qoa_read_u64(bytes, &p);
+		qoa_uint64_t weights = qoa_read_u64(bytes, &p);
+		for (int i = 0; i < QOA_LMS_LEN; i++) {
+			qoa->lms[c].history[i] = ((signed short)(history >> 48));
+			history <<= 16;
+			qoa->lms[c].weights[i] = ((signed short)(weights >> 48));
+			weights <<= 16;
+		}
+	}
+
+
+	/* Decode all slices for all channels in this frame */
+	for (unsigned int sample_index = 0; sample_index < samples; sample_index += QOA_SLICE_LEN) {
+		for (unsigned int c = 0; c < channels; c++) {
+			qoa_uint64_t slice = qoa_read_u64(bytes, &p);
+
+			int scalefactor = (slice >> 60) & 0xf;
+			slice <<= 4;
+
+			int slice_start = sample_index * channels + c;
+			int slice_end = qoa_clamp(sample_index + QOA_SLICE_LEN, 0, samples) * channels + c;
+
+			for (int si = slice_start; si < slice_end; si += channels) {
+				int predicted = qoa_lms_predict(&qoa->lms[c]);
+				int quantized = (slice >> 61) & 0x7;
+				int dequantized = qoa_dequant_tab[scalefactor][quantized];
+				int reconstructed = qoa_clamp_s16(predicted + dequantized);
+				
+				sample_data[si] = reconstructed;
+				slice <<= 3;
+
+				qoa_lms_update(&qoa->lms[c], reconstructed, dequantized);
+			}
+		}
+	}
+
+	*frame_len = samples;
+	return p;
+}
+
+short *qoa_decode(const unsigned char *bytes, int size, qoa_desc *qoa) {
+	unsigned int p = qoa_decode_header(bytes, size, qoa);
+	if (!p) {
+		return NULL;
+	}
+
+	/* Calculate the required size of the sample buffer and allocate */
+	int total_samples = qoa->samples * qoa->channels;
+	short *sample_data = QOA_MALLOC(total_samples * sizeof(short));
+
+	unsigned int sample_index = 0;
+	unsigned int frame_len;
+	unsigned int frame_size;
+
+	/* Decode all frames */
+	do {
+		short *sample_ptr = sample_data + sample_index * qoa->channels;
+		frame_size = qoa_decode_frame(bytes + p, size - p, qoa, sample_ptr, &frame_len);
+
+		p += frame_size;
+		sample_index += frame_len;
+	} while (frame_size && sample_index < qoa->samples);
+
+	qoa->samples = sample_index;
+	return sample_data;
+}
+
+
+
+/* -----------------------------------------------------------------------------
+	File read/write convenience functions */
+
+#ifndef QOA_NO_STDIO
+#include <stdio.h>
+
+int qoa_write(const char *filename, const short *sample_data, qoa_desc *qoa) {
+	FILE *f = fopen(filename, "wb");
+	unsigned int size;
+	void *encoded;
+
+	if (!f) {
+		return 0;
+	}
+
+	encoded = qoa_encode(sample_data, qoa, &size);
+	if (!encoded) {
+		fclose(f);
+		return 0;
+	}
+
+	fwrite(encoded, 1, size, f);
+	fclose(f);
+
+	QOA_FREE(encoded);
+	return size;
+}
+
+void *qoa_read(const char *filename, qoa_desc *qoa) {
+	FILE *f = fopen(filename, "rb");
+	int size, bytes_read;
+	void *data;
+	short *sample_data;
+
+	if (!f) {
+		return NULL;
+	}
+
+	fseek(f, 0, SEEK_END);
+	size = ftell(f);
+	if (size <= 0) {
+		fclose(f);
+		return NULL;
+	}
+	fseek(f, 0, SEEK_SET);
+
+	data = QOA_MALLOC(size);
+	if (!data) {
+		fclose(f);
+		return NULL;
+	}
+
+	bytes_read = fread(data, 1, size, f);
+	fclose(f);
+
+	sample_data = qoa_decode(data, bytes_read, qoa);
+	QOA_FREE(data);
+	return sample_data;
+}
+
+#endif /* QOA_NO_STDIO */
+#endif /* QOA_IMPLEMENTATION */

raylib/external/qoaplay.c

@@ -0,0 +1,278 @@
+/*******************************************************************************************
+*
+*   qoaplay - QOA stream playing helper functions
+*
+*   qoaplay is a tiny abstraction to read and decode a QOA file "on the fly".
+*   It reads and decodes one frame at a time with minimal memory requirements.
+*   qoaplay also provides some functions to seek to a specific frame.
+*
+*   LICENSE: MIT License
+*
+*   Copyright (c) 2023 Dominic Szablewski (@phoboslab), reviewed by Ramon Santamaria (@raysan5)
+*
+*   Permission is hereby granted, free of charge, to any person obtaining a copy
+*   of this software and associated documentation files (the "Software"), to deal
+*   in the Software without restriction, including without limitation the rights
+*   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+*   copies of the Software, and to permit persons to whom the Software is
+*   furnished to do so, subject to the following conditions:
+*
+*   The above copyright notice and this permission notice shall be included in all
+*   copies or substantial portions of the Software.
+*
+*   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+*   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+*   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+*   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+*   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+*   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+*   SOFTWARE.
+*
+**********************************************************************************************/
+
+//----------------------------------------------------------------------------------
+// Types and Structures Definition
+//----------------------------------------------------------------------------------
+// QOA streaming data descriptor
+typedef struct {
+    qoa_desc info;                  // QOA descriptor data
+
+    FILE *file;                     // QOA file to read, if NULL, using memory buffer -> file_data
+    unsigned char *file_data;       // QOA file data on memory
+    unsigned int file_data_size;    // QOA file data on memory size
+    unsigned int file_data_offset;  // QOA file data on memory offset for next read
+
+    unsigned int first_frame_pos;   // First frame position (after QOA header, required for offset)
+    unsigned int sample_position;   // Current streaming sample position
+
+    unsigned char *buffer;          // Buffer used to read samples from file/memory (used on decoding)
+    unsigned int buffer_len;        // Buffer length to read samples for streaming
+
+    short *sample_data;             // Sample data decoded
+    unsigned int sample_data_len;   // Sample data decoded length
+    unsigned int sample_data_pos;   // Sample data decoded position
+
+} qoaplay_desc;
+
+//----------------------------------------------------------------------------------
+// Module Functions Declaration
+//----------------------------------------------------------------------------------
+
+#if defined(__cplusplus)
+extern "C" {            // Prevents name mangling of functions
+#endif
+
+qoaplay_desc *qoaplay_open(const char *path);
+qoaplay_desc *qoaplay_open_memory(const unsigned char *data, int data_size);
+void qoaplay_close(qoaplay_desc *qoa_ctx);
+
+void qoaplay_rewind(qoaplay_desc *qoa_ctx);
+void qoaplay_seek_frame(qoaplay_desc *qoa_ctx, int frame);
+unsigned int qoaplay_decode(qoaplay_desc *qoa_ctx, float *sample_data, int num_samples);
+unsigned int qoaplay_decode_frame(qoaplay_desc *qoa_ctx);
+double qoaplay_get_duration(qoaplay_desc *qoa_ctx);
+double qoaplay_get_time(qoaplay_desc *qoa_ctx);
+int qoaplay_get_frame(qoaplay_desc *qoa_ctx);
+
+#if defined(__cplusplus)
+}            // Prevents name mangling of functions
+#endif
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition
+//----------------------------------------------------------------------------------
+
+// Open QOA file, keep FILE pointer to keep reading from file
+qoaplay_desc *qoaplay_open(const char *path)
+{
+    FILE *file = fopen(path, "rb");
+    if (!file) return NULL;
+
+    // Read and decode the file header
+    unsigned char header[QOA_MIN_FILESIZE];
+    int read = fread(header, QOA_MIN_FILESIZE, 1, file);
+    if (!read) return NULL;
+
+    qoa_desc qoa;
+    unsigned int first_frame_pos = qoa_decode_header(header, QOA_MIN_FILESIZE, &qoa);
+    if (!first_frame_pos) return NULL;
+
+    // Rewind the file back to beginning of the first frame
+    fseek(file, first_frame_pos, SEEK_SET);
+
+    // Allocate one chunk of memory for the qoaplay_desc struct
+    // + the sample data for one frame
+    // + a buffer to hold one frame of encoded data
+    unsigned int buffer_size = qoa_max_frame_size(&qoa);
+    unsigned int sample_data_size = qoa.channels*QOA_FRAME_LEN*sizeof(short)*2;
+    qoaplay_desc *qoa_ctx = QOA_MALLOC(sizeof(qoaplay_desc) + buffer_size + sample_data_size);
+    memset(qoa_ctx, 0, sizeof(qoaplay_desc));
+
+    qoa_ctx->file = file;
+    qoa_ctx->file_data = NULL;
+    qoa_ctx->file_data_size = 0;
+    qoa_ctx->file_data_offset = 0;
+    qoa_ctx->first_frame_pos = first_frame_pos;
+
+    // Setup data pointers to previously allocated data
+    qoa_ctx->buffer = ((unsigned char *)qoa_ctx) + sizeof(qoaplay_desc);
+    qoa_ctx->sample_data = (short *)(((unsigned char *)qoa_ctx) + sizeof(qoaplay_desc) + buffer_size);
+
+    qoa_ctx->info.channels = qoa.channels;
+    qoa_ctx->info.samplerate = qoa.samplerate;
+    qoa_ctx->info.samples = qoa.samples;
+
+    return qoa_ctx;
+}
+
+// Open QOA file from memory, no FILE pointer required
+qoaplay_desc *qoaplay_open_memory(const unsigned char *data, int data_size)
+{
+    // Read and decode the file header
+    unsigned char header[QOA_MIN_FILESIZE];
+    memcpy(header, data, QOA_MIN_FILESIZE);
+
+    qoa_desc qoa;
+    unsigned int first_frame_pos = qoa_decode_header(header, QOA_MIN_FILESIZE, &qoa);
+    if (!first_frame_pos) return NULL;
+
+    // Allocate one chunk of memory for the qoaplay_desc struct
+    // + the sample data for one frame
+    // + a buffer to hold one frame of encoded data
+    unsigned int buffer_size = qoa_max_frame_size(&qoa);
+    unsigned int sample_data_size = qoa.channels*QOA_FRAME_LEN*sizeof(short)*2;
+    qoaplay_desc *qoa_ctx = QOA_MALLOC(sizeof(qoaplay_desc) + buffer_size + sample_data_size);
+    memset(qoa_ctx, 0, sizeof(qoaplay_desc));
+
+    qoa_ctx->file = NULL;
+
+    // Keep a copy of file data provided to be managed internally
+    qoa_ctx->file_data = (unsigned char *)QOA_MALLOC(data_size);
+    memcpy(qoa_ctx->file_data, data, data_size);
+    qoa_ctx->file_data_size = data_size;
+    qoa_ctx->file_data_offset = 0;
+    qoa_ctx->first_frame_pos = first_frame_pos;
+
+    // Setup data pointers to previously allocated data
+    qoa_ctx->buffer = ((unsigned char *)qoa_ctx) + sizeof(qoaplay_desc);
+    qoa_ctx->sample_data = (short *)(((unsigned char *)qoa_ctx) + sizeof(qoaplay_desc) + buffer_size);
+
+    qoa_ctx->info.channels = qoa.channels;
+    qoa_ctx->info.samplerate = qoa.samplerate;
+    qoa_ctx->info.samples = qoa.samples;
+
+    return qoa_ctx;
+}
+
+// Close QOA file (if open) and free internal memory
+void qoaplay_close(qoaplay_desc *qoa_ctx)
+{
+    if (qoa_ctx->file) fclose(qoa_ctx->file);
+
+    if ((qoa_ctx->file_data) && (qoa_ctx->file_data_size > 0))
+    {
+        QOA_FREE(qoa_ctx->file_data);
+        qoa_ctx->file_data_size = 0;
+    }
+
+    QOA_FREE(qoa_ctx);
+}
+
+// Decode one frame from QOA data
+unsigned int qoaplay_decode_frame(qoaplay_desc *qoa_ctx)
+{
+    if (qoa_ctx->file) qoa_ctx->buffer_len = fread(qoa_ctx->buffer, 1, qoa_max_frame_size(&qoa_ctx->info), qoa_ctx->file);
+    else
+    {
+        qoa_ctx->buffer_len = qoa_max_frame_size(&qoa_ctx->info);
+        memcpy(qoa_ctx->buffer, qoa_ctx->file_data + qoa_ctx->file_data_offset, qoa_ctx->buffer_len);
+        qoa_ctx->file_data_offset += qoa_ctx->buffer_len;
+    }
+
+    unsigned int frame_len;
+    qoa_decode_frame(qoa_ctx->buffer, qoa_ctx->buffer_len, &qoa_ctx->info, qoa_ctx->sample_data, &frame_len);
+    qoa_ctx->sample_data_pos = 0;
+    qoa_ctx->sample_data_len = frame_len;
+
+    return frame_len;
+}
+
+// Rewind QOA file or memory pointer to beginning
+void qoaplay_rewind(qoaplay_desc *qoa_ctx)
+{
+    if (qoa_ctx->file) fseek(qoa_ctx->file, qoa_ctx->first_frame_pos, SEEK_SET);
+    else qoa_ctx->file_data_offset = 0;
+
+    qoa_ctx->sample_position = 0;
+    qoa_ctx->sample_data_len = 0;
+    qoa_ctx->sample_data_pos = 0;
+}
+
+// Decode required QOA frames
+unsigned int qoaplay_decode(qoaplay_desc *qoa_ctx, float *sample_data, int num_samples)
+{
+    int src_index = qoa_ctx->sample_data_pos*qoa_ctx->info.channels;
+    int dst_index = 0;
+
+    for (int i = 0; i < num_samples; i++)
+    {
+        // Do we have to decode more samples?
+        if (qoa_ctx->sample_data_len - qoa_ctx->sample_data_pos == 0)
+        {
+            if (!qoaplay_decode_frame(qoa_ctx))
+            {
+                // Loop to the beginning
+                qoaplay_rewind(qoa_ctx);
+                qoaplay_decode_frame(qoa_ctx);
+            }
+
+            src_index = 0;
+        }
+
+        // Normalize to -1..1 floats and write to dest
+        for (int c = 0; c < qoa_ctx->info.channels; c++)
+        {
+            sample_data[dst_index++] = qoa_ctx->sample_data[src_index++]/32768.0;
+        }
+
+        qoa_ctx->sample_data_pos++;
+        qoa_ctx->sample_position++;
+    }
+
+    return num_samples;
+}
+
+// Get QOA total time duration in seconds
+double qoaplay_get_duration(qoaplay_desc *qoa_ctx)
+{
+    return (double)qoa_ctx->info.samples/(double)qoa_ctx->info.samplerate;
+}
+
+// Get QOA current time position in seconds
+double qoaplay_get_time(qoaplay_desc *qoa_ctx)
+{
+    return (double)qoa_ctx->sample_position/(double)qoa_ctx->info.samplerate;
+}
+
+// Get QOA current audio frame
+int qoaplay_get_frame(qoaplay_desc *qoa_ctx)
+{
+    return qoa_ctx->sample_position/QOA_FRAME_LEN;
+}
+
+// Seek QOA audio frame
+void qoaplay_seek_frame(qoaplay_desc *qoa_ctx, int frame)
+{
+    if (frame < 0) frame = 0;
+
+    if (frame > qoa_ctx->info.samples/QOA_FRAME_LEN) frame = qoa_ctx->info.samples/QOA_FRAME_LEN;
+
+    qoa_ctx->sample_position = frame*QOA_FRAME_LEN;
+    qoa_ctx->sample_data_len = 0;
+    qoa_ctx->sample_data_pos = 0;
+
+    unsigned int offset = qoa_ctx->first_frame_pos + frame*qoa_max_frame_size(&qoa_ctx->info);
+
+    if (qoa_ctx->file) fseek(qoa_ctx->file, offset, SEEK_SET);
+    else qoa_ctx->file_data_offset = offset;
+}

raylib/external/qoi.h

@@ -0,0 +1,649 @@
+/*
+
+Copyright (c) 2021, Dominic Szablewski - https://phoboslab.org
+SPDX-License-Identifier: MIT
+
+
+QOI - The "Quite OK Image" format for fast, lossless image compression
+
+-- About
+
+QOI encodes and decodes images in a lossless format. Compared to stb_image and
+stb_image_write QOI offers 20x-50x faster encoding, 3x-4x faster decoding and
+20% better compression.
+
+
+-- Synopsis
+
+// Define `QOI_IMPLEMENTATION` in *one* C/C++ file before including this
+// library to create the implementation.
+
+#define QOI_IMPLEMENTATION
+#include "qoi.h"
+
+// Encode and store an RGBA buffer to the file system. The qoi_desc describes
+// the input pixel data.
+qoi_write("image_new.qoi", rgba_pixels, &(qoi_desc){
+	.width = 1920,
+	.height = 1080,
+	.channels = 4,
+	.colorspace = QOI_SRGB
+});
+
+// Load and decode a QOI image from the file system into a 32bbp RGBA buffer.
+// The qoi_desc struct will be filled with the width, height, number of channels
+// and colorspace read from the file header.
+qoi_desc desc;
+void *rgba_pixels = qoi_read("image.qoi", &desc, 4);
+
+
+
+-- Documentation
+
+This library provides the following functions;
+- qoi_read    -- read and decode a QOI file
+- qoi_decode  -- decode the raw bytes of a QOI image from memory
+- qoi_write   -- encode and write a QOI file
+- qoi_encode  -- encode an rgba buffer into a QOI image in memory
+
+See the function declaration below for the signature and more information.
+
+If you don't want/need the qoi_read and qoi_write functions, you can define
+QOI_NO_STDIO before including this library.
+
+This library uses malloc() and free(). To supply your own malloc implementation
+you can define QOI_MALLOC and QOI_FREE before including this library.
+
+This library uses memset() to zero-initialize the index. To supply your own
+implementation you can define QOI_ZEROARR before including this library.
+
+
+-- Data Format
+
+A QOI file has a 14 byte header, followed by any number of data "chunks" and an
+8-byte end marker.
+
+struct qoi_header_t {
+	char     magic[4];   // magic bytes "qoif"
+	uint32_t width;      // image width in pixels (BE)
+	uint32_t height;     // image height in pixels (BE)
+	uint8_t  channels;   // 3 = RGB, 4 = RGBA
+	uint8_t  colorspace; // 0 = sRGB with linear alpha, 1 = all channels linear
+};
+
+Images are encoded row by row, left to right, top to bottom. The decoder and
+encoder start with {r: 0, g: 0, b: 0, a: 255} as the previous pixel value. An
+image is complete when all pixels specified by width * height have been covered.
+
+Pixels are encoded as
+ - a run of the previous pixel
+ - an index into an array of previously seen pixels
+ - a difference to the previous pixel value in r,g,b
+ - full r,g,b or r,g,b,a values
+
+The color channels are assumed to not be premultiplied with the alpha channel
+("un-premultiplied alpha").
+
+A running array[64] (zero-initialized) of previously seen pixel values is
+maintained by the encoder and decoder. Each pixel that is seen by the encoder
+and decoder is put into this array at the position formed by a hash function of
+the color value. In the encoder, if the pixel value at the index matches the
+current pixel, this index position is written to the stream as QOI_OP_INDEX.
+The hash function for the index is:
+
+	index_position = (r * 3 + g * 5 + b * 7 + a * 11) % 64
+
+Each chunk starts with a 2- or 8-bit tag, followed by a number of data bits. The
+bit length of chunks is divisible by 8 - i.e. all chunks are byte aligned. All
+values encoded in these data bits have the most significant bit on the left.
+
+The 8-bit tags have precedence over the 2-bit tags. A decoder must check for the
+presence of an 8-bit tag first.
+
+The byte stream's end is marked with 7 0x00 bytes followed a single 0x01 byte.
+
+
+The possible chunks are:
+
+
+.- QOI_OP_INDEX ----------.
+|         Byte[0]         |
+|  7  6  5  4  3  2  1  0 |
+|-------+-----------------|
+|  0  0 |     index       |
+`-------------------------`
+2-bit tag b00
+6-bit index into the color index array: 0..63
+
+A valid encoder must not issue 2 or more consecutive QOI_OP_INDEX chunks to the
+same index. QOI_OP_RUN should be used instead.
+
+
+.- QOI_OP_DIFF -----------.
+|         Byte[0]         |
+|  7  6  5  4  3  2  1  0 |
+|-------+-----+-----+-----|
+|  0  1 |  dr |  dg |  db |
+`-------------------------`
+2-bit tag b01
+2-bit   red channel difference from the previous pixel between -2..1
+2-bit green channel difference from the previous pixel between -2..1
+2-bit  blue channel difference from the previous pixel between -2..1
+
+The difference to the current channel values are using a wraparound operation,
+so "1 - 2" will result in 255, while "255 + 1" will result in 0.
+
+Values are stored as unsigned integers with a bias of 2. E.g. -2 is stored as
+0 (b00). 1 is stored as 3 (b11).
+
+The alpha value remains unchanged from the previous pixel.
+
+
+.- QOI_OP_LUMA -------------------------------------.
+|         Byte[0]         |         Byte[1]         |
+|  7  6  5  4  3  2  1  0 |  7  6  5  4  3  2  1  0 |
+|-------+-----------------+-------------+-----------|
+|  1  0 |  green diff     |   dr - dg   |  db - dg  |
+`---------------------------------------------------`
+2-bit tag b10
+6-bit green channel difference from the previous pixel -32..31
+4-bit   red channel difference minus green channel difference -8..7
+4-bit  blue channel difference minus green channel difference -8..7
+
+The green channel is used to indicate the general direction of change and is
+encoded in 6 bits. The red and blue channels (dr and db) base their diffs off
+of the green channel difference and are encoded in 4 bits. I.e.:
+	dr_dg = (cur_px.r - prev_px.r) - (cur_px.g - prev_px.g)
+	db_dg = (cur_px.b - prev_px.b) - (cur_px.g - prev_px.g)
+
+The difference to the current channel values are using a wraparound operation,
+so "10 - 13" will result in 253, while "250 + 7" will result in 1.
+
+Values are stored as unsigned integers with a bias of 32 for the green channel
+and a bias of 8 for the red and blue channel.
+
+The alpha value remains unchanged from the previous pixel.
+
+
+.- QOI_OP_RUN ------------.
+|         Byte[0]         |
+|  7  6  5  4  3  2  1  0 |
+|-------+-----------------|
+|  1  1 |       run       |
+`-------------------------`
+2-bit tag b11
+6-bit run-length repeating the previous pixel: 1..62
+
+The run-length is stored with a bias of -1. Note that the run-lengths 63 and 64
+(b111110 and b111111) are illegal as they are occupied by the QOI_OP_RGB and
+QOI_OP_RGBA tags.
+
+
+.- QOI_OP_RGB ------------------------------------------.
+|         Byte[0]         | Byte[1] | Byte[2] | Byte[3] |
+|  7  6  5  4  3  2  1  0 | 7 .. 0  | 7 .. 0  | 7 .. 0  |
+|-------------------------+---------+---------+---------|
+|  1  1  1  1  1  1  1  0 |   red   |  green  |  blue   |
+`-------------------------------------------------------`
+8-bit tag b11111110
+8-bit   red channel value
+8-bit green channel value
+8-bit  blue channel value
+
+The alpha value remains unchanged from the previous pixel.
+
+
+.- QOI_OP_RGBA ---------------------------------------------------.
+|         Byte[0]         | Byte[1] | Byte[2] | Byte[3] | Byte[4] |
+|  7  6  5  4  3  2  1  0 | 7 .. 0  | 7 .. 0  | 7 .. 0  | 7 .. 0  |
+|-------------------------+---------+---------+---------+---------|
+|  1  1  1  1  1  1  1  1 |   red   |  green  |  blue   |  alpha  |
+`-----------------------------------------------------------------`
+8-bit tag b11111111
+8-bit   red channel value
+8-bit green channel value
+8-bit  blue channel value
+8-bit alpha channel value
+
+*/
+
+
+/* -----------------------------------------------------------------------------
+Header - Public functions */
+
+#ifndef QOI_H
+#define QOI_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* A pointer to a qoi_desc struct has to be supplied to all of qoi's functions.
+It describes either the input format (for qoi_write and qoi_encode), or is
+filled with the description read from the file header (for qoi_read and
+qoi_decode).
+
+The colorspace in this qoi_desc is an enum where
+	0 = sRGB, i.e. gamma scaled RGB channels and a linear alpha channel
+	1 = all channels are linear
+You may use the constants QOI_SRGB or QOI_LINEAR. The colorspace is purely
+informative. It will be saved to the file header, but does not affect
+how chunks are en-/decoded. */
+
+#define QOI_SRGB   0
+#define QOI_LINEAR 1
+
+typedef struct {
+	unsigned int width;
+	unsigned int height;
+	unsigned char channels;
+	unsigned char colorspace;
+} qoi_desc;
+
+#ifndef QOI_NO_STDIO
+
+/* Encode raw RGB or RGBA pixels into a QOI image and write it to the file
+system. The qoi_desc struct must be filled with the image width, height,
+number of channels (3 = RGB, 4 = RGBA) and the colorspace.
+
+The function returns 0 on failure (invalid parameters, or fopen or malloc
+failed) or the number of bytes written on success. */
+
+int qoi_write(const char *filename, const void *data, const qoi_desc *desc);
+
+
+/* Read and decode a QOI image from the file system. If channels is 0, the
+number of channels from the file header is used. If channels is 3 or 4 the
+output format will be forced into this number of channels.
+
+The function either returns NULL on failure (invalid data, or malloc or fopen
+failed) or a pointer to the decoded pixels. On success, the qoi_desc struct
+will be filled with the description from the file header.
+
+The returned pixel data should be free()d after use. */
+
+void *qoi_read(const char *filename, qoi_desc *desc, int channels);
+
+#endif /* QOI_NO_STDIO */
+
+
+/* Encode raw RGB or RGBA pixels into a QOI image in memory.
+
+The function either returns NULL on failure (invalid parameters or malloc
+failed) or a pointer to the encoded data on success. On success the out_len
+is set to the size in bytes of the encoded data.
+
+The returned qoi data should be free()d after use. */
+
+void *qoi_encode(const void *data, const qoi_desc *desc, int *out_len);
+
+
+/* Decode a QOI image from memory.
+
+The function either returns NULL on failure (invalid parameters or malloc
+failed) or a pointer to the decoded pixels. On success, the qoi_desc struct
+is filled with the description from the file header.
+
+The returned pixel data should be free()d after use. */
+
+void *qoi_decode(const void *data, int size, qoi_desc *desc, int channels);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* QOI_H */
+
+
+/* -----------------------------------------------------------------------------
+Implementation */
+
+#ifdef QOI_IMPLEMENTATION
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef QOI_MALLOC
+	#define QOI_MALLOC(sz) malloc(sz)
+	#define QOI_FREE(p)    free(p)
+#endif
+#ifndef QOI_ZEROARR
+	#define QOI_ZEROARR(a) memset((a),0,sizeof(a))
+#endif
+
+#define QOI_OP_INDEX  0x00 /* 00xxxxxx */
+#define QOI_OP_DIFF   0x40 /* 01xxxxxx */
+#define QOI_OP_LUMA   0x80 /* 10xxxxxx */
+#define QOI_OP_RUN    0xc0 /* 11xxxxxx */
+#define QOI_OP_RGB    0xfe /* 11111110 */
+#define QOI_OP_RGBA   0xff /* 11111111 */
+
+#define QOI_MASK_2    0xc0 /* 11000000 */
+
+#define QOI_COLOR_HASH(C) (C.rgba.r*3 + C.rgba.g*5 + C.rgba.b*7 + C.rgba.a*11)
+#define QOI_MAGIC \
+	(((unsigned int)'q') << 24 | ((unsigned int)'o') << 16 | \
+	 ((unsigned int)'i') <<  8 | ((unsigned int)'f'))
+#define QOI_HEADER_SIZE 14
+
+/* 2GB is the max file size that this implementation can safely handle. We guard
+against anything larger than that, assuming the worst case with 5 bytes per
+pixel, rounded down to a nice clean value. 400 million pixels ought to be
+enough for anybody. */
+#define QOI_PIXELS_MAX ((unsigned int)400000000)
+
+typedef union {
+	struct { unsigned char r, g, b, a; } rgba;
+	unsigned int v;
+} qoi_rgba_t;
+
+static const unsigned char qoi_padding[8] = {0,0,0,0,0,0,0,1};
+
+static void qoi_write_32(unsigned char *bytes, int *p, unsigned int v) {
+	bytes[(*p)++] = (0xff000000 & v) >> 24;
+	bytes[(*p)++] = (0x00ff0000 & v) >> 16;
+	bytes[(*p)++] = (0x0000ff00 & v) >> 8;
+	bytes[(*p)++] = (0x000000ff & v);
+}
+
+static unsigned int qoi_read_32(const unsigned char *bytes, int *p) {
+	unsigned int a = bytes[(*p)++];
+	unsigned int b = bytes[(*p)++];
+	unsigned int c = bytes[(*p)++];
+	unsigned int d = bytes[(*p)++];
+	return a << 24 | b << 16 | c << 8 | d;
+}
+
+void *qoi_encode(const void *data, const qoi_desc *desc, int *out_len) {
+	int i, max_size, p, run;
+	int px_len, px_end, px_pos, channels;
+	unsigned char *bytes;
+	const unsigned char *pixels;
+	qoi_rgba_t index[64];
+	qoi_rgba_t px, px_prev;
+
+	if (
+		data == NULL || out_len == NULL || desc == NULL ||
+		desc->width == 0 || desc->height == 0 ||
+		desc->channels < 3 || desc->channels > 4 ||
+		desc->colorspace > 1 ||
+		desc->height >= QOI_PIXELS_MAX / desc->width
+	) {
+		return NULL;
+	}
+
+	max_size =
+		desc->width * desc->height * (desc->channels + 1) +
+		QOI_HEADER_SIZE + sizeof(qoi_padding);
+
+	p = 0;
+	bytes = (unsigned char *) QOI_MALLOC(max_size);
+	if (!bytes) {
+		return NULL;
+	}
+
+	qoi_write_32(bytes, &p, QOI_MAGIC);
+	qoi_write_32(bytes, &p, desc->width);
+	qoi_write_32(bytes, &p, desc->height);
+	bytes[p++] = desc->channels;
+	bytes[p++] = desc->colorspace;
+
+
+	pixels = (const unsigned char *)data;
+
+	QOI_ZEROARR(index);
+
+	run = 0;
+	px_prev.rgba.r = 0;
+	px_prev.rgba.g = 0;
+	px_prev.rgba.b = 0;
+	px_prev.rgba.a = 255;
+	px = px_prev;
+
+	px_len = desc->width * desc->height * desc->channels;
+	px_end = px_len - desc->channels;
+	channels = desc->channels;
+
+	for (px_pos = 0; px_pos < px_len; px_pos += channels) {
+		px.rgba.r = pixels[px_pos + 0];
+		px.rgba.g = pixels[px_pos + 1];
+		px.rgba.b = pixels[px_pos + 2];
+
+		if (channels == 4) {
+			px.rgba.a = pixels[px_pos + 3];
+		}
+
+		if (px.v == px_prev.v) {
+			run++;
+			if (run == 62 || px_pos == px_end) {
+				bytes[p++] = QOI_OP_RUN | (run - 1);
+				run = 0;
+			}
+		}
+		else {
+			int index_pos;
+
+			if (run > 0) {
+				bytes[p++] = QOI_OP_RUN | (run - 1);
+				run = 0;
+			}
+
+			index_pos = QOI_COLOR_HASH(px) % 64;
+
+			if (index[index_pos].v == px.v) {
+				bytes[p++] = QOI_OP_INDEX | index_pos;
+			}
+			else {
+				index[index_pos] = px;
+
+				if (px.rgba.a == px_prev.rgba.a) {
+					signed char vr = px.rgba.r - px_prev.rgba.r;
+					signed char vg = px.rgba.g - px_prev.rgba.g;
+					signed char vb = px.rgba.b - px_prev.rgba.b;
+
+					signed char vg_r = vr - vg;
+					signed char vg_b = vb - vg;
+
+					if (
+						vr > -3 && vr < 2 &&
+						vg > -3 && vg < 2 &&
+						vb > -3 && vb < 2
+					) {
+						bytes[p++] = QOI_OP_DIFF | (vr + 2) << 4 | (vg + 2) << 2 | (vb + 2);
+					}
+					else if (
+						vg_r >  -9 && vg_r <  8 &&
+						vg   > -33 && vg   < 32 &&
+						vg_b >  -9 && vg_b <  8
+					) {
+						bytes[p++] = QOI_OP_LUMA     | (vg   + 32);
+						bytes[p++] = (vg_r + 8) << 4 | (vg_b +  8);
+					}
+					else {
+						bytes[p++] = QOI_OP_RGB;
+						bytes[p++] = px.rgba.r;
+						bytes[p++] = px.rgba.g;
+						bytes[p++] = px.rgba.b;
+					}
+				}
+				else {
+					bytes[p++] = QOI_OP_RGBA;
+					bytes[p++] = px.rgba.r;
+					bytes[p++] = px.rgba.g;
+					bytes[p++] = px.rgba.b;
+					bytes[p++] = px.rgba.a;
+				}
+			}
+		}
+		px_prev = px;
+	}
+
+	for (i = 0; i < (int)sizeof(qoi_padding); i++) {
+		bytes[p++] = qoi_padding[i];
+	}
+
+	*out_len = p;
+	return bytes;
+}
+
+void *qoi_decode(const void *data, int size, qoi_desc *desc, int channels) {
+	const unsigned char *bytes;
+	unsigned int header_magic;
+	unsigned char *pixels;
+	qoi_rgba_t index[64];
+	qoi_rgba_t px;
+	int px_len, chunks_len, px_pos;
+	int p = 0, run = 0;
+
+	if (
+		data == NULL || desc == NULL ||
+		(channels != 0 && channels != 3 && channels != 4) ||
+		size < QOI_HEADER_SIZE + (int)sizeof(qoi_padding)
+	) {
+		return NULL;
+	}
+
+	bytes = (const unsigned char *)data;
+
+	header_magic = qoi_read_32(bytes, &p);
+	desc->width = qoi_read_32(bytes, &p);
+	desc->height = qoi_read_32(bytes, &p);
+	desc->channels = bytes[p++];
+	desc->colorspace = bytes[p++];
+
+	if (
+		desc->width == 0 || desc->height == 0 ||
+		desc->channels < 3 || desc->channels > 4 ||
+		desc->colorspace > 1 ||
+		header_magic != QOI_MAGIC ||
+		desc->height >= QOI_PIXELS_MAX / desc->width
+	) {
+		return NULL;
+	}
+
+	if (channels == 0) {
+		channels = desc->channels;
+	}
+
+	px_len = desc->width * desc->height * channels;
+	pixels = (unsigned char *) QOI_MALLOC(px_len);
+	if (!pixels) {
+		return NULL;
+	}
+
+	QOI_ZEROARR(index);
+	px.rgba.r = 0;
+	px.rgba.g = 0;
+	px.rgba.b = 0;
+	px.rgba.a = 255;
+
+	chunks_len = size - (int)sizeof(qoi_padding);
+	for (px_pos = 0; px_pos < px_len; px_pos += channels) {
+		if (run > 0) {
+			run--;
+		}
+		else if (p < chunks_len) {
+			int b1 = bytes[p++];
+
+			if (b1 == QOI_OP_RGB) {
+				px.rgba.r = bytes[p++];
+				px.rgba.g = bytes[p++];
+				px.rgba.b = bytes[p++];
+			}
+			else if (b1 == QOI_OP_RGBA) {
+				px.rgba.r = bytes[p++];
+				px.rgba.g = bytes[p++];
+				px.rgba.b = bytes[p++];
+				px.rgba.a = bytes[p++];
+			}
+			else if ((b1 & QOI_MASK_2) == QOI_OP_INDEX) {
+				px = index[b1];
+			}
+			else if ((b1 & QOI_MASK_2) == QOI_OP_DIFF) {
+				px.rgba.r += ((b1 >> 4) & 0x03) - 2;
+				px.rgba.g += ((b1 >> 2) & 0x03) - 2;
+				px.rgba.b += ( b1       & 0x03) - 2;
+			}
+			else if ((b1 & QOI_MASK_2) == QOI_OP_LUMA) {
+				int b2 = bytes[p++];
+				int vg = (b1 & 0x3f) - 32;
+				px.rgba.r += vg - 8 + ((b2 >> 4) & 0x0f);
+				px.rgba.g += vg;
+				px.rgba.b += vg - 8 +  (b2       & 0x0f);
+			}
+			else if ((b1 & QOI_MASK_2) == QOI_OP_RUN) {
+				run = (b1 & 0x3f);
+			}
+
+			index[QOI_COLOR_HASH(px) % 64] = px;
+		}
+
+		pixels[px_pos + 0] = px.rgba.r;
+		pixels[px_pos + 1] = px.rgba.g;
+		pixels[px_pos + 2] = px.rgba.b;
+		
+		if (channels == 4) {
+			pixels[px_pos + 3] = px.rgba.a;
+		}
+	}
+
+	return pixels;
+}
+
+#ifndef QOI_NO_STDIO
+#include <stdio.h>
+
+int qoi_write(const char *filename, const void *data, const qoi_desc *desc) {
+	FILE *f = fopen(filename, "wb");
+	int size, err;
+	void *encoded;
+
+	if (!f) {
+		return 0;
+	}
+
+	encoded = qoi_encode(data, desc, &size);
+	if (!encoded) {
+		fclose(f);
+		return 0;
+	}
+
+	fwrite(encoded, 1, size, f);
+	fflush(f);
+	err = ferror(f);
+	fclose(f);
+
+	QOI_FREE(encoded);
+	return err ? 0 : size;
+}
+
+void *qoi_read(const char *filename, qoi_desc *desc, int channels) {
+	FILE *f = fopen(filename, "rb");
+	int size, bytes_read;
+	void *pixels, *data;
+
+	if (!f) {
+		return NULL;
+	}
+
+	fseek(f, 0, SEEK_END);
+	size = ftell(f);
+	if (size <= 0 || fseek(f, 0, SEEK_SET) != 0) {
+		fclose(f);
+		return NULL;
+	}
+
+	data = QOI_MALLOC(size);
+	if (!data) {
+		fclose(f);
+		return NULL;
+	}
+
+	bytes_read = fread(data, 1, size, f);
+	fclose(f);
+	pixels = (bytes_read != size) ? NULL : qoi_decode(data, bytes_read, desc, channels);
+	QOI_FREE(data);
+	return pixels;
+}
+
+#endif /* QOI_NO_STDIO */
+#endif /* QOI_IMPLEMENTATION */

raylib/external/rl_gputex.h

@@ -0,0 +1,826 @@
+/**********************************************************************************************
+*
+*   rl_gputex v1.0 - GPU compressed textures loading and saving
+*
+*   DESCRIPTION:
+*
+*     Load GPU compressed image data from image files provided as memory data arrays,
+*     data is loaded compressed, ready to be loaded into GPU.
+*
+*     Note that some file formats (DDS, PVR, KTX) also support uncompressed data storage.
+*     In those cases data is loaded uncompressed and format is returned.
+*
+*   TODO:
+*     - Implement raylib function: rlGetGlTextureFormats(), required by rl_save_ktx_to_memory()
+*     - Review rl_load_ktx_from_memory() to support KTX v2.2 specs
+*
+*   CONFIGURATION:
+*
+*   #define RL_GPUTEX_SUPPORT_DDS
+*   #define RL_GPUTEX_SUPPORT_PKM
+*   #define RL_GPUTEX_SUPPORT_KTX
+*   #define RL_GPUTEX_SUPPORT_PVR
+*   #define RL_GPUTEX_SUPPORT_ASTC
+*       Define desired file formats to be supported
+*
+*
+*   LICENSE: zlib/libpng
+*
+*   Copyright (c) 2013-2022 Ramon Santamaria (@raysan5)
+*
+*   This software is provided "as-is", without any express or implied warranty. In no event
+*   will the authors be held liable for any damages arising from the use of this software.
+*
+*   Permission is granted to anyone to use this software for any purpose, including commercial
+*   applications, and to alter it and redistribute it freely, subject to the following restrictions:
+*
+*     1. The origin of this software must not be misrepresented; you must not claim that you
+*     wrote the original software. If you use this software in a product, an acknowledgment
+*     in the product documentation would be appreciated but is not required.
+*
+*     2. Altered source versions must be plainly marked as such, and must not be misrepresented
+*     as being the original software.
+*
+*     3. This notice may not be removed or altered from any source distribution.
+*
+**********************************************************************************************/
+
+#ifndef RL_GPUTEX_H
+#define RL_GPUTEX_H
+
+#ifndef RLAPI
+    #define RLAPI       // Functions defined as 'extern' by default (implicit specifiers)
+#endif
+
+//----------------------------------------------------------------------------------
+// Module Functions Declaration
+//----------------------------------------------------------------------------------
+#if defined(__cplusplus)
+extern "C" {            // Prevents name mangling of functions
+#endif
+
+// Load image data from memory data files
+RLAPI void *rl_load_dds_from_memory(const unsigned char *file_data, unsigned int file_size, int *width, int *height, int *format, int *mips);
+RLAPI void *rl_load_pkm_from_memory(const unsigned char *file_data, unsigned int file_size, int *width, int *height, int *format, int *mips);
+RLAPI void *rl_load_ktx_from_memory(const unsigned char *file_data, unsigned int file_size, int *width, int *height, int *format, int *mips);
+RLAPI void *rl_load_pvr_from_memory(const unsigned char *file_data, unsigned int file_size, int *width, int *height, int *format, int *mips);
+RLAPI void *rl_load_astc_from_memory(const unsigned char *file_data, unsigned int file_size, int *width, int *height, int *format, int *mips);
+
+RLAPI int rl_save_ktx_to_memory(const char *fileName, void *data, int width, int height, int format, int mipmaps);  // Save image data as KTX file
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif // RL_GPUTEX_H
+
+
+/***********************************************************************************
+*
+*   RL_GPUTEX IMPLEMENTATION
+*
+************************************************************************************/
+
+#if defined(RL_GPUTEX_IMPLEMENTATION)
+
+// Simple log system to avoid RPNG_LOG() calls if required
+// NOTE: Avoiding those calls, also avoids const strings memory usage
+#define RL_GPUTEX_SHOW_LOG_INFO
+#if defined(RL_GPUTEX_SHOW_LOG_INFO) && !defined(LOG)
+#define LOG(...) printf(__VA_ARGS__)
+#else
+#define LOG(...)
+#endif
+
+//----------------------------------------------------------------------------------
+// Module Internal Functions Declaration
+//----------------------------------------------------------------------------------
+// Get pixel data size in bytes for certain pixel format
+static int get_pixel_data_size(int width, int height, int format);
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition
+//----------------------------------------------------------------------------------
+#if defined(RL_GPUTEX_SUPPORT_DDS)
+// Loading DDS from memory image data (compressed or uncompressed)
+void *rl_load_dds_from_memory(const unsigned char *file_data, unsigned int file_size, int *width, int *height, int *format, int *mips)
+{
+    void *image_data = NULL;        // Image data pointer
+    int image_pixel_size = 0;       // Image pixel size
+
+    unsigned char *file_data_ptr = (unsigned char *)file_data;
+
+    // Required extension:
+    // GL_EXT_texture_compression_s3tc
+
+    // Supported tokens (defined by extensions)
+    // GL_COMPRESSED_RGB_S3TC_DXT1_EXT      0x83F0
+    // GL_COMPRESSED_RGBA_S3TC_DXT1_EXT     0x83F1
+    // GL_COMPRESSED_RGBA_S3TC_DXT3_EXT     0x83F2
+    // GL_COMPRESSED_RGBA_S3TC_DXT5_EXT     0x83F3
+
+    #define FOURCC_DXT1 0x31545844  // Equivalent to "DXT1" in ASCII
+    #define FOURCC_DXT3 0x33545844  // Equivalent to "DXT3" in ASCII
+    #define FOURCC_DXT5 0x35545844  // Equivalent to "DXT5" in ASCII
+
+    // DDS Pixel Format
+    typedef struct {
+        unsigned int size;
+        unsigned int flags;
+        unsigned int fourcc;
+        unsigned int rgb_bit_count;
+        unsigned int r_bit_mask;
+        unsigned int g_bit_mask;
+        unsigned int b_bit_mask;
+        unsigned int a_bit_mask;
+    } dds_pixel_format;
+
+    // DDS Header (124 bytes)
+    typedef struct {
+        unsigned int size;
+        unsigned int flags;
+        unsigned int height;
+        unsigned int width;
+        unsigned int pitch_or_linear_size;
+        unsigned int depth;
+        unsigned int mipmap_count;
+        unsigned int reserved1[11];
+        dds_pixel_format ddspf;
+        unsigned int caps;
+        unsigned int caps2;
+        unsigned int caps3;
+        unsigned int caps4;
+        unsigned int reserved2;
+    } dds_header;
+
+    if (file_data_ptr != NULL)
+    {
+        // Verify the type of file
+        unsigned char *dds_header_id = file_data_ptr;
+        file_data_ptr += 4;
+
+        if ((dds_header_id[0] != 'D') || (dds_header_id[1] != 'D') || (dds_header_id[2] != 'S') || (dds_header_id[3] != ' '))
+        {
+            LOG("WARNING: IMAGE: DDS file data not valid");
+        }
+        else
+        {
+            dds_header *header = (dds_header *)file_data_ptr;
+
+            file_data_ptr += sizeof(dds_header);        // Skip header
+
+            *width = header->width;
+            *height = header->height;
+
+            if (*width % 4 != 0) LOG("WARNING: IMAGE: DDS file width must be multiple of 4. Image will not display correctly");
+            if (*height % 4 != 0) LOG("WARNING: IMAGE: DDS file height must be multiple of 4. Image will not display correctly");
+
+            image_pixel_size = header->width*header->height;
+
+            if (header->mipmap_count == 0) *mips = 1;   // Parameter not used
+            else *mips = header->mipmap_count;
+
+            if (header->ddspf.rgb_bit_count == 16)      // 16bit mode, no compressed
+            {
+                if (header->ddspf.flags == 0x40)        // No alpha channel
+                {
+                    int data_size = image_pixel_size*sizeof(unsigned short);
+                    if (header->mipmap_count > 1) data_size = data_size + data_size / 3;
+                    image_data = RL_MALLOC(data_size);
+
+                    memcpy(image_data, file_data_ptr, data_size);
+
+                    *format = PIXELFORMAT_UNCOMPRESSED_R5G6B5;
+                }
+                else if (header->ddspf.flags == 0x41)           // With alpha channel
+                {
+                    if (header->ddspf.a_bit_mask == 0x8000)     // 1bit alpha
+                    {
+                        int data_size = image_pixel_size*sizeof(unsigned short);
+                        if (header->mipmap_count > 1) data_size = data_size + data_size / 3;
+                        image_data = RL_MALLOC(data_size);
+
+                        memcpy(image_data, file_data_ptr, data_size);
+
+                        unsigned char alpha = 0;
+
+                        // NOTE: Data comes as A1R5G5B5, it must be reordered to R5G5B5A1
+                        for (int i = 0; i < image_pixel_size; i++)
+                        {
+                            alpha = ((unsigned short *)image_data)[i] >> 15;
+                            ((unsigned short *)image_data)[i] = ((unsigned short *)image_data)[i] << 1;
+                            ((unsigned short *)image_data)[i] += alpha;
+                        }
+
+                        *format = PIXELFORMAT_UNCOMPRESSED_R5G5B5A1;
+                    }
+                    else if (header->ddspf.a_bit_mask == 0xf000)   // 4bit alpha
+                    {
+                        int data_size = image_pixel_size*sizeof(unsigned short);
+                        if (header->mipmap_count > 1) data_size = data_size + data_size / 3;
+                        image_data = RL_MALLOC(data_size);
+
+                        memcpy(image_data, file_data_ptr, data_size);
+
+                        unsigned char alpha = 0;
+
+                        // NOTE: Data comes as A4R4G4B4, it must be reordered R4G4B4A4
+                        for (int i = 0; i < image_pixel_size; i++)
+                        {
+                            alpha = ((unsigned short *)image_data)[i] >> 12;
+                            ((unsigned short *)image_data)[i] = ((unsigned short *)image_data)[i] << 4;
+                            ((unsigned short *)image_data)[i] += alpha;
+                        }
+
+                        *format = PIXELFORMAT_UNCOMPRESSED_R4G4B4A4;
+                    }
+                }
+            }
+            else if ((header->ddspf.flags == 0x40) && (header->ddspf.rgb_bit_count == 24))   // DDS_RGB, no compressed
+            {
+                int data_size = image_pixel_size*3*sizeof(unsigned char);
+                if (header->mipmap_count > 1) data_size = data_size + data_size / 3;
+                image_data = RL_MALLOC(data_size);
+
+                memcpy(image_data, file_data_ptr, data_size);
+
+                *format = PIXELFORMAT_UNCOMPRESSED_R8G8B8;
+            }
+            else if ((header->ddspf.flags == 0x41) && (header->ddspf.rgb_bit_count == 32)) // DDS_RGBA, no compressed
+            {
+                int data_size = image_pixel_size*4*sizeof(unsigned char);
+                if (header->mipmap_count > 1) data_size = data_size + data_size / 3;
+                image_data = RL_MALLOC(data_size);
+
+                memcpy(image_data, file_data_ptr, data_size);
+
+                unsigned char blue = 0;
+
+                // NOTE: Data comes as A8R8G8B8, it must be reordered R8G8B8A8 (view next comment)
+                // DirecX understand ARGB as a 32bit DWORD but the actual memory byte alignment is BGRA
+                // So, we must realign B8G8R8A8 to R8G8B8A8
+                for (int i = 0; i < image_pixel_size*4; i += 4)
+                {
+                    blue = ((unsigned char *)image_data)[i];
+                    ((unsigned char *)image_data)[i] = ((unsigned char *)image_data)[i + 2];
+                    ((unsigned char *)image_data)[i + 2] = blue;
+                }
+
+                *format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8;
+            }
+            else if (((header->ddspf.flags == 0x04) || (header->ddspf.flags == 0x05)) && (header->ddspf.fourcc > 0)) // Compressed
+            {
+                int data_size = 0;
+
+                // Calculate data size, including all mipmaps
+                if (header->mipmap_count > 1) data_size = header->pitch_or_linear_size + header->pitch_or_linear_size / 3;
+                else data_size = header->pitch_or_linear_size;
+
+                image_data = RL_MALLOC(data_size*sizeof(unsigned char));
+
+                memcpy(image_data, file_data_ptr, data_size);
+
+                switch (header->ddspf.fourcc)
+                {
+                    case FOURCC_DXT1:
+                    {
+                        if (header->ddspf.flags == 0x04) *format = PIXELFORMAT_COMPRESSED_DXT1_RGB;
+                        else *format = PIXELFORMAT_COMPRESSED_DXT1_RGBA;
+                    } break;
+                    case FOURCC_DXT3: *format = PIXELFORMAT_COMPRESSED_DXT3_RGBA; break;
+                    case FOURCC_DXT5: *format = PIXELFORMAT_COMPRESSED_DXT5_RGBA; break;
+                    default: break;
+                }
+            }
+        }
+    }
+
+    return image_data;
+}
+#endif
+
+#if defined(RL_GPUTEX_SUPPORT_PKM)
+// Loading PKM image data (ETC1/ETC2 compression)
+// NOTE: KTX is the standard Khronos Group compression format (ETC1/ETC2, mipmaps)
+// PKM is a much simpler file format used mainly to contain a single ETC1/ETC2 compressed image (no mipmaps)
+void *rl_load_pkm_from_memory(const unsigned char *file_data, unsigned int file_size, int *width, int *height, int *format, int *mips)
+{
+    void *image_data = NULL;        // Image data pointer
+
+    unsigned char *file_data_ptr = (unsigned char *)file_data;
+
+    // Required extensions:
+    // GL_OES_compressed_ETC1_RGB8_texture  (ETC1) (OpenGL ES 2.0)
+    // GL_ARB_ES3_compatibility  (ETC2/EAC) (OpenGL ES 3.0)
+
+    // Supported tokens (defined by extensions)
+    // GL_ETC1_RGB8_OES                 0x8D64
+    // GL_COMPRESSED_RGB8_ETC2          0x9274
+    // GL_COMPRESSED_RGBA8_ETC2_EAC     0x9278
+
+    // PKM file (ETC1) Header (16 bytes)
+    typedef struct {
+        char id[4];                 // "PKM "
+        char version[2];            // "10" or "20"
+        unsigned short format;      // Data format (big-endian) (Check list below)
+        unsigned short width;       // Texture width (big-endian) (orig_width rounded to multiple of 4)
+        unsigned short height;      // Texture height (big-endian) (orig_height rounded to multiple of 4)
+        unsigned short orig_width;   // Original width (big-endian)
+        unsigned short orig_height;  // Original height (big-endian)
+    } pkm_header;
+
+    // Formats list
+    // version 10: format: 0=ETC1_RGB, [1=ETC1_RGBA, 2=ETC1_RGB_MIP, 3=ETC1_RGBA_MIP] (not used)
+    // version 20: format: 0=ETC1_RGB, 1=ETC2_RGB, 2=ETC2_RGBA_OLD, 3=ETC2_RGBA, 4=ETC2_RGBA1, 5=ETC2_R, 6=ETC2_RG, 7=ETC2_SIGNED_R, 8=ETC2_SIGNED_R
+
+    // NOTE: The extended width and height are the widths rounded up to a multiple of 4.
+    // NOTE: ETC is always 4bit per pixel (64 bit for each 4x4 block of pixels)
+
+    if (file_data_ptr != NULL)
+    {
+        pkm_header *header = (pkm_header *)file_data_ptr;
+
+        if ((header->id[0] != 'P') || (header->id[1] != 'K') || (header->id[2] != 'M') || (header->id[3] != ' '))
+        {
+            LOG("WARNING: IMAGE: PKM file data not valid");
+        }
+        else
+        {
+            file_data_ptr += sizeof(pkm_header);   // Skip header
+
+            // NOTE: format, width and height come as big-endian, data must be swapped to little-endian
+            header->format = ((header->format & 0x00FF) << 8) | ((header->format & 0xFF00) >> 8);
+            header->width = ((header->width & 0x00FF) << 8) | ((header->width & 0xFF00) >> 8);
+            header->height = ((header->height & 0x00FF) << 8) | ((header->height & 0xFF00) >> 8);
+
+            *width = header->width;
+            *height = header->height;
+            *mips = 1;
+
+            int bpp = 4;
+            if (header->format == 3) bpp = 8;
+
+            int data_size = (*width)*(*height)*bpp/8;  // Total data size in bytes
+
+            image_data = RL_MALLOC(data_size*sizeof(unsigned char));
+
+            memcpy(image_data, file_data_ptr, data_size);
+
+            if (header->format == 0) *format = PIXELFORMAT_COMPRESSED_ETC1_RGB;
+            else if (header->format == 1) *format = PIXELFORMAT_COMPRESSED_ETC2_RGB;
+            else if (header->format == 3) *format = PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA;
+        }
+    }
+
+    return image_data;
+}
+#endif
+
+#if defined(RL_GPUTEX_SUPPORT_KTX)
+// Load KTX compressed image data (ETC1/ETC2 compression)
+// TODO: Review KTX loading, many things changed!
+void *rl_load_ktx_from_memory(const unsigned char *file_data, unsigned int file_size, int *width, int *height, int *format, int *mips)
+{
+    void *image_data = NULL;        // Image data pointer
+
+    unsigned char *file_data_ptr = (unsigned char *)file_data;
+
+    // Required extensions:
+    // GL_OES_compressed_ETC1_RGB8_texture  (ETC1)
+    // GL_ARB_ES3_compatibility  (ETC2/EAC)
+
+    // Supported tokens (defined by extensions)
+    // GL_ETC1_RGB8_OES                 0x8D64
+    // GL_COMPRESSED_RGB8_ETC2          0x9274
+    // GL_COMPRESSED_RGBA8_ETC2_EAC     0x9278
+
+    // KTX file Header (64 bytes)
+    // v1.1 - https://www.khronos.org/opengles/sdk/tools/KTX/file_format_spec/
+    // v2.0 - http://github.khronos.org/KTX-Specification/
+
+    // KTX 1.1 Header
+    // TODO: Support KTX 2.2 specs!
+    typedef struct {
+        char id[12];                            // Identifier: "«KTX 11»\r\n\x1A\n"
+        unsigned int endianness;                // Little endian: 0x01 0x02 0x03 0x04
+        unsigned int gl_type;                   // For compressed textures, glType must equal 0
+        unsigned int gl_type_size;              // For compressed texture data, usually 1
+        unsigned int gl_format;                 // For compressed textures is 0
+        unsigned int gl_internal_format;        // Compressed internal format
+        unsigned int gl_base_internal_format;   // Same as glFormat (RGB, RGBA, ALPHA...)
+        unsigned int width;                     // Texture image width in pixels
+        unsigned int height;                    // Texture image height in pixels
+        unsigned int depth;                     // For 2D textures is 0
+        unsigned int elements;                  // Number of array elements, usually 0
+        unsigned int faces;                     // Cubemap faces, for no-cubemap = 1
+        unsigned int mipmap_levels;             // Non-mipmapped textures = 1
+        unsigned int key_value_data_size;       // Used to encode any arbitrary data...
+    } ktx_header;
+
+    // NOTE: Before start of every mipmap data block, we have: unsigned int data_size
+
+    if (file_data_ptr != NULL)
+    {
+        ktx_header *header = (ktx_header *)file_data_ptr;
+
+        if ((header->id[1] != 'K') || (header->id[2] != 'T') || (header->id[3] != 'X') ||
+            (header->id[4] != ' ') || (header->id[5] != '1') || (header->id[6] != '1'))
+        {
+            LOG("WARNING: IMAGE: KTX file data not valid");
+        }
+        else
+        {
+            file_data_ptr += sizeof(ktx_header);           // Move file data pointer
+
+            *width = header->width;
+            *height = header->height;
+            *mips = header->mipmap_levels;
+
+            file_data_ptr += header->key_value_data_size; // Skip value data size
+
+            int data_size = ((int *)file_data_ptr)[0];
+            file_data_ptr += sizeof(int);
+
+            image_data = RL_MALLOC(data_size*sizeof(unsigned char));
+
+            memcpy(image_data, file_data_ptr, data_size);
+
+            if (header->gl_internal_format == 0x8D64) *format = PIXELFORMAT_COMPRESSED_ETC1_RGB;
+            else if (header->gl_internal_format == 0x9274) *format = PIXELFORMAT_COMPRESSED_ETC2_RGB;
+            else if (header->gl_internal_format == 0x9278) *format = PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA;
+
+            // TODO: Support uncompressed data formats? Right now it returns format = 0!
+        }
+    }
+
+    return image_data;
+}
+
+// Save image data as KTX file
+// NOTE: By default KTX 1.1 spec is used, 2.0 is still on draft (01Oct2018)
+// TODO: Review KTX saving, many things changed!
+int rl_save_ktx(const char *file_name, void *data, int width, int height, int format, int mipmaps)
+{
+    // KTX file Header (64 bytes)
+    // v1.1 - https://www.khronos.org/opengles/sdk/tools/KTX/file_format_spec/
+    // v2.0 - http://github.khronos.org/KTX-Specification/ - Final specs by 2021-04-18
+    typedef struct {
+        char id[12];                            // Identifier: "«KTX 11»\r\n\x1A\n"         // KTX 2.0: "«KTX 22»\r\n\x1A\n"
+        unsigned int endianness;                // Little endian: 0x01 0x02 0x03 0x04
+        unsigned int gl_type;                   // For compressed textures, glType must equal 0
+        unsigned int gl_type_size;              // For compressed texture data, usually 1
+        unsigned int gl_format;                 // For compressed textures is 0
+        unsigned int gl_internal_format;        // Compressed internal format
+        unsigned int gl_base_internal_format;   // Same as glFormat (RGB, RGBA, ALPHA...)   // KTX 2.0: UInt32 vkFormat
+        unsigned int width;                     // Texture image width in pixels
+        unsigned int height;                    // Texture image height in pixels
+        unsigned int depth;                     // For 2D textures is 0
+        unsigned int elements;                  // Number of array elements, usually 0
+        unsigned int faces;                     // Cubemap faces, for no-cubemap = 1
+        unsigned int mipmap_levels;             // Non-mipmapped textures = 1
+        unsigned int key_value_data_size;       // Used to encode any arbitrary data...     // KTX 2.0: UInt32 levelOrder - ordering of the mipmap levels, usually 0
+                                                                                            // KTX 2.0: UInt32 supercompressionScheme - 0 (None), 1 (Crunch CRN), 2 (Zlib DEFLATE)...
+        // KTX 2.0 defines additional header elements...
+    } ktx_header;
+
+    // Calculate file data_size required
+    int data_size = sizeof(ktx_header);
+
+    for (int i = 0, w = width, h = height; i < mipmaps; i++)
+    {
+        data_size += get_pixel_data_size(w, h, format);
+        w /= 2; h /= 2;
+    }
+
+    unsigned char *file_data = RL_CALLOC(data_size, 1);
+    unsigned char *file_data_ptr = file_data;
+
+    ktx_header header = { 0 };
+
+    // KTX identifier (v1.1)
+    //unsigned char id[12] = { '«', 'K', 'T', 'X', ' ', '1', '1', '»', '\r', '\n', '\x1A', '\n' };
+    //unsigned char id[12] = { 0xAB, 0x4B, 0x54, 0x58, 0x20, 0x31, 0x31, 0xBB, 0x0D, 0x0A, 0x1A, 0x0A };
+
+    const char ktx_identifier[12] = { 0xAB, 'K', 'T', 'X', ' ', '1', '1', 0xBB, '\r', '\n', 0x1A, '\n' };
+
+    // Get the image header
+    memcpy(header.id, ktx_identifier, 12);  // KTX 1.1 signature
+    header.endianness = 0;
+    header.gl_type = 0;                     // Obtained from format
+    header.gl_type_size = 1;
+    header.gl_format = 0;                   // Obtained from format
+    header.gl_internal_format = 0;          // Obtained from format
+    header.gl_base_internal_format = 0;
+    header.width = width;
+    header.height = height;
+    header.depth = 0;
+    header.elements = 0;
+    header.faces = 1;
+    header.mipmap_levels = mipmaps;         // If it was 0, it means mipmaps should be generated on loading (not for compressed formats)
+    header.key_value_data_size = 0;         // No extra data after the header
+
+    rlGetGlTextureFormats(format, &header.gl_internal_format, &header.gl_format, &header.gl_type);   // rlgl module function
+    header.gl_base_internal_format = header.gl_format;    // KTX 1.1 only
+
+    // NOTE: We can save into a .ktx all PixelFormats supported by raylib, including compressed formats like DXT, ETC or ASTC
+
+    if (header.gl_format == -1) LOG("WARNING: IMAGE: GL format not supported for KTX export (%i)", header.gl_format);
+    else
+    {
+        memcpy(file_data_ptr, &header, sizeof(ktx_header));
+        file_data_ptr += sizeof(ktx_header);
+
+        int temp_width = width;
+        int temp_height = height;
+        int data_offset = 0;
+
+        // Save all mipmaps data
+        for (int i = 0; i < mipmaps; i++)
+        {
+            unsigned int data_size = get_pixel_data_size(temp_width, temp_height, format);
+
+            memcpy(file_data_ptr, &data_size, sizeof(unsigned int));
+            memcpy(file_data_ptr + 4, (unsigned char *)data + data_offset, data_size);
+
+            temp_width /= 2;
+            temp_height /= 2;
+            data_offset += data_size;
+            file_data_ptr += (4 + data_size);
+        }
+    }
+
+    // Save file data to file
+    int success = false;
+    FILE *file = fopen(file_name, "wb");
+
+    if (file != NULL)
+    {
+        unsigned int count = (unsigned int)fwrite(file_data, sizeof(unsigned char), data_size, file);
+
+        if (count == 0) LOG("WARNING: FILEIO: [%s] Failed to write file", file_name);
+        else if (count != data_size) LOG("WARNING: FILEIO: [%s] File partially written", file_name);
+        else LOG("INFO: FILEIO: [%s] File saved successfully", file_name);
+
+        int result = fclose(file);
+        if (result == 0) success = true;
+    }
+    else LOG("WARNING: FILEIO: [%s] Failed to open file", file_name);
+
+    RL_FREE(file_data);    // Free file data buffer
+
+    // If all data has been written correctly to file, success = 1
+    return success;
+}
+#endif
+
+#if defined(RL_GPUTEX_SUPPORT_PVR)
+// Loading PVR image data (uncompressed or PVRT compression)
+// NOTE: PVR v2 not supported, use PVR v3 instead
+void *rl_load_pvr_from_memory(const unsigned char *file_data, unsigned int file_size, int *width, int *height, int *format, int *mips)
+{
+    void *image_data = NULL;        // Image data pointer
+
+    unsigned char *file_data_ptr = (unsigned char *)file_data;
+
+    // Required extension:
+    // GL_IMG_texture_compression_pvrtc
+
+    // Supported tokens (defined by extensions)
+    // GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG       0x8C00
+    // GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG      0x8C02
+
+#if 0   // Not used...
+    // PVR file v2 Header (52 bytes)
+    typedef struct {
+        unsigned int headerLength;
+        unsigned int height;
+        unsigned int width;
+        unsigned int numMipmaps;
+        unsigned int flags;
+        unsigned int dataLength;
+        unsigned int bpp;
+        unsigned int bitmaskRed;
+        unsigned int bitmaskGreen;
+        unsigned int bitmaskBlue;
+        unsigned int bitmaskAlpha;
+        unsigned int pvrTag;
+        unsigned int numSurfs;
+    } PVRHeaderV2;
+#endif
+
+    // PVR file v3 Header (52 bytes)
+    // NOTE: After it could be metadata (15 bytes?)
+    typedef struct {
+        char id[4];
+        unsigned int flags;
+        unsigned char channels[4];      // pixelFormat high part
+        unsigned char channel_depth[4];  // pixelFormat low part
+        unsigned int color_space;
+        unsigned int channel_type;
+        unsigned int height;
+        unsigned int width;
+        unsigned int depth;
+        unsigned int num_surfaces;
+        unsigned int num_faces;
+        unsigned int num_mipmaps;
+        unsigned int metadata_size;
+    } pvr_header;
+
+#if 0   // Not used...
+    // Metadata (usually 15 bytes)
+    typedef struct {
+        unsigned int devFOURCC;
+        unsigned int key;
+        unsigned int data_size;      // Not used?
+        unsigned char *data;        // Not used?
+    } PVRMetadata;
+#endif
+
+    if (file_data_ptr != NULL)
+    {
+        // Check PVR image version
+        unsigned char pvr_version = file_data_ptr[0];
+
+        // Load different PVR data formats
+        if (pvr_version == 0x50)
+        {
+            pvr_header *header = (pvr_header *)file_data_ptr;
+
+            if ((header->id[0] != 'P') || (header->id[1] != 'V') || (header->id[2] != 'R') || (header->id[3] != 3))
+            {
+                LOG("WARNING: IMAGE: PVR file data not valid");
+            }
+            else
+            {
+                file_data_ptr += sizeof(pvr_header);   // Skip header
+
+                *width = header->width;
+                *height = header->height;
+                *mips = header->num_mipmaps;
+
+                // Check data format
+                if (((header->channels[0] == 'l') && (header->channels[1] == 0)) && (header->channel_depth[0] == 8)) *format = PIXELFORMAT_UNCOMPRESSED_GRAYSCALE;
+                else if (((header->channels[0] == 'l') && (header->channels[1] == 'a')) && ((header->channel_depth[0] == 8) && (header->channel_depth[1] == 8))) *format = PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA;
+                else if ((header->channels[0] == 'r') && (header->channels[1] == 'g') && (header->channels[2] == 'b'))
+                {
+                    if (header->channels[3] == 'a')
+                    {
+                        if ((header->channel_depth[0] == 5) && (header->channel_depth[1] == 5) && (header->channel_depth[2] == 5) && (header->channel_depth[3] == 1)) *format = PIXELFORMAT_UNCOMPRESSED_R5G5B5A1;
+                        else if ((header->channel_depth[0] == 4) && (header->channel_depth[1] == 4) && (header->channel_depth[2] == 4) && (header->channel_depth[3] == 4)) *format = PIXELFORMAT_UNCOMPRESSED_R4G4B4A4;
+                        else if ((header->channel_depth[0] == 8) && (header->channel_depth[1] == 8) && (header->channel_depth[2] == 8) && (header->channel_depth[3] == 8)) *format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8;
+                    }
+                    else if (header->channels[3] == 0)
+                    {
+                        if ((header->channel_depth[0] == 5) && (header->channel_depth[1] == 6) && (header->channel_depth[2] == 5)) *format = PIXELFORMAT_UNCOMPRESSED_R5G6B5;
+                        else if ((header->channel_depth[0] == 8) && (header->channel_depth[1] == 8) && (header->channel_depth[2] == 8)) *format = PIXELFORMAT_UNCOMPRESSED_R8G8B8;
+                    }
+                }
+                else if (header->channels[0] == 2) *format = PIXELFORMAT_COMPRESSED_PVRT_RGB;
+                else if (header->channels[0] == 3) *format = PIXELFORMAT_COMPRESSED_PVRT_RGBA;
+
+                file_data_ptr += header->metadata_size;    // Skip meta data header
+
+                // Calculate data size (depends on format)
+                int bpp = 0;
+                switch (*format)
+                {
+                    case PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: bpp = 8; break;
+                    case PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA:
+                    case PIXELFORMAT_UNCOMPRESSED_R5G5B5A1:
+                    case PIXELFORMAT_UNCOMPRESSED_R5G6B5:
+                    case PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: bpp = 16; break;
+                    case PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: bpp = 32; break;
+                    case PIXELFORMAT_UNCOMPRESSED_R8G8B8: bpp = 24; break;
+                    case PIXELFORMAT_COMPRESSED_PVRT_RGB:
+                    case PIXELFORMAT_COMPRESSED_PVRT_RGBA: bpp = 4; break;
+                    default: break;
+                }
+
+                int data_size = (*width)*(*height)*bpp/8;  // Total data size in bytes
+                image_data = RL_MALLOC(data_size*sizeof(unsigned char));
+
+                memcpy(image_data, file_data_ptr, data_size);
+            }
+        }
+        else if (pvr_version == 52) LOG("INFO: IMAGE: PVRv2 format not supported, update your files to PVRv3");
+    }
+
+    return image_data;
+}
+#endif
+
+#if defined(RL_GPUTEX_SUPPORT_ASTC)
+// Load ASTC compressed image data (ASTC compression)
+void *rl_load_astc_from_memory(const unsigned char *file_data, unsigned int file_size, int *width, int *height, int *format, int *mips)
+{
+    void *image_data = NULL;        // Image data pointer
+
+    unsigned char *file_data_ptr = (unsigned char *)file_data;
+
+    // Required extensions:
+    // GL_KHR_texture_compression_astc_hdr
+    // GL_KHR_texture_compression_astc_ldr
+
+    // Supported tokens (defined by extensions)
+    // GL_COMPRESSED_RGBA_ASTC_4x4_KHR      0x93b0
+    // GL_COMPRESSED_RGBA_ASTC_8x8_KHR      0x93b7
+
+    // ASTC file Header (16 bytes)
+    typedef struct {
+        unsigned char id[4];        // Signature: 0x13 0xAB 0xA1 0x5C
+        unsigned char blockX;       // Block X dimensions
+        unsigned char blockY;       // Block Y dimensions
+        unsigned char blockZ;       // Block Z dimensions (1 for 2D images)
+        unsigned char width[3];     // void *width in pixels (24bit value)
+        unsigned char height[3];    // void *height in pixels (24bit value)
+        unsigned char length[3];    // void *Z-size (1 for 2D images)
+    } astc_header;
+
+    if (file_data_ptr != NULL)
+    {
+        astc_header *header = (astc_header *)file_data_ptr;
+
+        if ((header->id[3] != 0x5c) || (header->id[2] != 0xa1) || (header->id[1] != 0xab) || (header->id[0] != 0x13))
+        {
+            LOG("WARNING: IMAGE: ASTC file data not valid");
+        }
+        else
+        {
+            file_data_ptr += sizeof(astc_header);   // Skip header
+
+            // NOTE: Assuming Little Endian (could it be wrong?)
+            *width = 0x00000000 | ((int)header->width[2] << 16) | ((int)header->width[1] << 8) | ((int)header->width[0]);
+            *height = 0x00000000 | ((int)header->height[2] << 16) | ((int)header->height[1] << 8) | ((int)header->height[0]);
+            *mips = 1;      // NOTE: ASTC format only contains one mipmap level
+
+            // NOTE: Each block is always stored in 128bit so we can calculate the bpp
+            int bpp = 128/(header->blockX*header->blockY);
+
+            // NOTE: Currently we only support 2 blocks configurations: 4x4 and 8x8
+            if ((bpp == 8) || (bpp == 2))
+            {
+                int data_size = (*width)*(*height)*bpp/8;  // Data size in bytes
+
+                image_data = RL_MALLOC(data_size*sizeof(unsigned char));
+
+                memcpy(image_data, file_data_ptr, data_size);
+
+                if (bpp == 8) *format = PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA;
+                else if (bpp == 2) *format = PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA;
+            }
+            else LOG("WARNING: IMAGE: ASTC block size configuration not supported");
+        }
+    }
+
+    return image_data;
+}
+#endif
+
+//----------------------------------------------------------------------------------
+// Module Internal Functions Definition
+//----------------------------------------------------------------------------------
+// Get pixel data size in bytes for certain pixel format
+static int get_pixel_data_size(int width, int height, int format)
+{
+    int data_size = 0;       // Size in bytes
+    int bpp = 0;            // Bits per pixel
+
+    switch (format)
+    {
+        case PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: bpp = 8; break;
+        case PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA:
+        case PIXELFORMAT_UNCOMPRESSED_R5G6B5:
+        case PIXELFORMAT_UNCOMPRESSED_R5G5B5A1:
+        case PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: bpp = 16; break;
+        case PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: bpp = 32; break;
+        case PIXELFORMAT_UNCOMPRESSED_R8G8B8: bpp = 24; break;
+        case PIXELFORMAT_UNCOMPRESSED_R32: bpp = 32; break;
+        case PIXELFORMAT_UNCOMPRESSED_R32G32B32: bpp = 32*3; break;
+        case PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: bpp = 32*4; break;
+        case PIXELFORMAT_COMPRESSED_DXT1_RGB:
+        case PIXELFORMAT_COMPRESSED_DXT1_RGBA:
+        case PIXELFORMAT_COMPRESSED_ETC1_RGB:
+        case PIXELFORMAT_COMPRESSED_ETC2_RGB:
+        case PIXELFORMAT_COMPRESSED_PVRT_RGB:
+        case PIXELFORMAT_COMPRESSED_PVRT_RGBA: bpp = 4; break;
+        case PIXELFORMAT_COMPRESSED_DXT3_RGBA:
+        case PIXELFORMAT_COMPRESSED_DXT5_RGBA:
+        case PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA:
+        case PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA: bpp = 8; break;
+        case PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: bpp = 2; break;
+        default: break;
+    }
+
+    data_size = width*height*bpp/8;  // Total data size in bytes
+
+    // Most compressed formats works on 4x4 blocks,
+    // if texture is smaller, minimum dataSize is 8 or 16
+    if ((width < 4) && (height < 4))
+    {
+        if ((format >= PIXELFORMAT_COMPRESSED_DXT1_RGB) && (format < PIXELFORMAT_COMPRESSED_DXT3_RGBA)) data_size = 8;
+        else if ((format >= PIXELFORMAT_COMPRESSED_DXT3_RGBA) && (format < PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA)) data_size = 16;
+    }
+
+    return data_size;
+}
+#endif // RL_GPUTEX_IMPLEMENTATION

raylib/external/rprand.h

@@ -0,0 +1,311 @@
+/**********************************************************************************************
+*
+*   rprand v1.0 - A simple and easy-to-use pseudo-random numbers generator (PRNG)
+*
+*   FEATURES:
+*       - Pseudo-random values generation, 32 bits: [0..4294967295]
+*       - Sequence generation avoiding duplicate values
+*       - Using standard and proven prng algorithm (Xoshiro128**)
+*       - State initialized with a separate generator (SplitMix64)
+*
+*   LIMITATIONS:
+*       - No negative numbers, up to the user to manage them
+*
+*   POSSIBLE IMPROVEMENTS:
+*       - Support 64 bits generation
+*
+*   ADDITIONAL NOTES:
+*     This library implements two pseudo-random number generation algorithms: 
+*
+*         - Xoshiro128** : https://prng.di.unimi.it/xoshiro128starstar.c
+*         - SplitMix64   : https://prng.di.unimi.it/splitmix64.c
+*
+*     SplitMix64 is used to initialize the Xoshiro128** state, from a provided seed
+*
+*     It's suggested to use SplitMix64 to initialize the state of the generators starting from 
+*     a 64-bit seed, as research has shown that initialization must be performed with a generator 
+*     radically different in nature from the one initialized to avoid correlation on similar seeds.
+*
+*   CONFIGURATION:
+*       #define RPRAND_IMPLEMENTATION
+*           Generates the implementation of the library into the included file.
+*           If not defined, the library is in header only mode and can be included in other headers
+*           or source files without problems. But only ONE file should hold the implementation.
+* 
+*   DEPENDENCIES: none
+*
+*   VERSIONS HISTORY:
+*       1.0 (01-Jun-2023) First version
+*
+*
+*   LICENSE: zlib/libpng
+*
+*   Copyright (c) 2023 Ramon Santamaria (@raysan5)
+*
+*   This software is provided "as-is", without any express or implied warranty. In no event
+*   will the authors be held liable for any damages arising from the use of this software.
+*
+*   Permission is granted to anyone to use this software for any purpose, including commercial
+*   applications, and to alter it and redistribute it freely, subject to the following restrictions:
+*
+*     1. The origin of this software must not be misrepresented; you must not claim that you
+*     wrote the original software. If you use this software in a product, an acknowledgment
+*     in the product documentation would be appreciated but is not required.
+*
+*     2. Altered source versions must be plainly marked as such, and must not be misrepresented
+*     as being the original software.
+*
+*     3. This notice may not be removed or altered from any source distribution.
+*
+**********************************************************************************************/
+
+#ifndef RPRAND_H
+#define RPRAND_H
+
+#define RPRAND_VERSION    "1.0"
+
+// Function specifiers in case library is build/used as a shared library (Windows)
+// NOTE: Microsoft specifiers to tell compiler that symbols are imported/exported from a .dll
+#if defined(_WIN32)
+    #if defined(BUILD_LIBTYPE_SHARED)
+        #define RPRAND __declspec(dllexport)     // We are building the library as a Win32 shared library (.dll)
+    #elif defined(USE_LIBTYPE_SHARED)
+        #define RPRAND __declspec(dllimport)     // We are using the library as a Win32 shared library (.dll)
+    #endif
+#endif
+
+// Function specifiers definition
+#ifndef RPRANDAPI
+    #define RPRANDAPI       // Functions defined as 'extern' by default (implicit specifiers)
+#endif
+
+//----------------------------------------------------------------------------------
+// Defines and Macros
+//----------------------------------------------------------------------------------
+// Allow custom memory allocators
+#ifndef RPRAND_CALLOC
+    #define RPRAND_CALLOC(ptr,sz)     calloc(ptr,sz)
+#endif
+#ifndef RPRAND_FREE
+    #define RPRAND_FREE(ptr)          free(ptr)
+#endif
+
+// Simple log system to avoid RPNG_LOG() calls if required
+// NOTE: Avoiding those calls, also avoids const strings memory usage
+#define RPRAND_SHOW_LOG_INFO
+#if defined(RPNG_SHOW_LOG_INFO)
+  #define RPRAND_LOG(...) printf(__VA_ARGS__)
+#else
+  #define RPRAND_LOG(...)
+#endif
+
+//----------------------------------------------------------------------------------
+// Types and Structures Definition
+//----------------------------------------------------------------------------------
+//...
+
+#ifdef __cplusplus
+extern "C" {                // Prevents name mangling of functions
+#endif
+
+//----------------------------------------------------------------------------------
+// Global Variables Definition
+//----------------------------------------------------------------------------------
+//...
+
+//----------------------------------------------------------------------------------
+// Module Functions Declaration
+//----------------------------------------------------------------------------------
+RPRANDAPI void rprand_set_seed(unsigned long long seed);        // Set rprand_state for Xoshiro128**, seed is 64bit
+RPRANDAPI int rprand_get_value(int min, int max);               // Get random value within a range, min and max included
+
+RPRANDAPI int *rprand_load_sequence(unsigned int count, int min, int max); // Load pseudo-random numbers sequence with no duplicates
+RPRANDAPI void rprand_unload_sequence(int *sequence);           // Unload pseudo-random numbers sequence
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // RPRAND_H
+
+/***********************************************************************************
+*
+*   RPRAND IMPLEMENTATION
+*
+************************************************************************************/
+
+#if defined(RPRAND_IMPLEMENTATION)
+
+#include <stdlib.h>     // Required for: calloc(), free(), abs()
+#include <stdint.h>     // Required for data types: uint32_t, uint64_t
+
+//----------------------------------------------------------------------------------
+// Types and Structures Definition
+//----------------------------------------------------------------------------------
+// ...
+
+//----------------------------------------------------------------------------------
+// Global Variables Definition
+//----------------------------------------------------------------------------------
+static uint64_t rprand_seed = 0xAABBCCDD;       // SplitMix64 default seed (aligned to rprand_state)
+static uint32_t rprand_state[4] = {             // Xoshiro128** state, initialized by SplitMix64
+    0x96ea83c1,
+    0x218b21e5,
+    0xaa91febd,
+    0x976414d4
+};        
+
+//----------------------------------------------------------------------------------
+// Module internal functions declaration
+//----------------------------------------------------------------------------------
+static uint32_t rprand_xoshiro(void);           // Xoshiro128** generator (uses global rprand_state)
+static uint64_t rprand_splitmix64(void);        // SplitMix64 generator (uses seed to generate rprand_state)
+
+//----------------------------------------------------------------------------------
+// Module functions definition
+//----------------------------------------------------------------------------------
+// Set rprand_state for Xoshiro128**
+// NOTE: We use a custom generation algorithm using SplitMix64
+void rprand_set_seed(unsigned long long seed)
+{
+    rprand_seed = (uint64_t)seed;    // Set SplitMix64 seed for further use
+
+    // To generate the Xoshiro128** state, we use SplitMix64 generator first
+    // We generate 4 pseudo-random 64bit numbers that we combine using their LSB|MSB
+    rprand_state[0] = (uint32_t)(rprand_splitmix64() & 0xffffffff);
+    rprand_state[1] = (uint32_t)((rprand_splitmix64() & 0xffffffff00000000) >> 32);
+    rprand_state[2] = (uint32_t)(rprand_splitmix64() & 0xffffffff);
+    rprand_state[3] = (uint32_t)((rprand_splitmix64() & 0xffffffff00000000) >> 32);
+}
+
+// Get random value within a range, min and max included
+int rprand_get_value(int min, int max)
+{
+    int value = rprand_xoshiro()%(abs(max - min) + 1) + min;
+
+    return value;
+}
+
+// Load pseudo-random numbers sequence with no duplicates, min and max included
+int *rprand_load_sequence(unsigned int count, int min, int max)
+{
+    int *sequence = NULL;
+    
+    if (count > (unsigned int)(abs(max - min) + 1)) 
+    {
+        RPRAND_LOG("WARNING: Sequence count required is greater than range provided\n");
+        //count = (max - min);
+        return sequence;
+    }
+
+    sequence = (int *)RPRAND_CALLOC(count, sizeof(int));
+
+    int value = 0;
+    bool value_is_dup = false;
+
+    for (unsigned int i = 0; i < count;)
+    {
+        value = ((unsigned int)rprand_xoshiro()%(abs(max - min) + 1)) + min;
+
+        for (unsigned int j = 0; j < i; j++)
+        {
+            if (sequence[j] == value)
+            {
+                value_is_dup = true;
+                break;
+            }
+        }
+
+        if (!value_is_dup)
+        {
+            sequence[i] = value;
+            i++;
+        }
+
+        value_is_dup = false;
+    }
+
+    return sequence;
+}
+
+// Unload pseudo-random numbers sequence
+void rprand_unload_sequence(int *sequence)
+{
+    RPRAND_FREE(sequence);
+    sequence = NULL;
+}
+
+//----------------------------------------------------------------------------------
+// Module internal functions definition
+//----------------------------------------------------------------------------------
+static inline uint32_t rprand_rotate_left(const uint32_t x, int k)
+{
+    return (x << k) | (x >> (32 - k));
+}
+
+// Xoshiro128** generator info:
+//   
+//   Written in 2018 by David Blackman and Sebastiano Vigna (vigna@acm.org)
+//   
+//   To the extent possible under law, the author has dedicated all copyright
+//   and related and neighboring rights to this software to the public domain
+//   worldwide. This software is distributed without any warranty.
+//   
+//   See <http://creativecommons.org/publicdomain/zero/1.0/>.
+//   
+//   This is xoshiro128** 1.1, one of our 32-bit all-purpose, rock-solid
+//   generators. It has excellent speed, a state size (128 bits) that is
+//   large enough for mild parallelism, and it passes all tests we are aware
+//   of.
+// 
+//   Note that version 1.0 had mistakenly s[0] instead of s[1] as state
+//   word passed to the scrambler.
+// 
+//   For generating just single-precision (i.e., 32-bit) floating-point
+//   numbers, xoshiro128+ is even faster.
+// 
+//   The state must be seeded so that it is not everywhere zero.
+//
+uint32_t rprand_xoshiro(void)
+{
+    const uint32_t result = rprand_rotate_left(rprand_state[1]*5, 7)*9;
+    const uint32_t t = rprand_state[1] << 9;
+
+    rprand_state[2] ^= rprand_state[0];
+    rprand_state[3] ^= rprand_state[1];
+    rprand_state[1] ^= rprand_state[2];
+    rprand_state[0] ^= rprand_state[3];
+    
+    rprand_state[2] ^= t;
+    
+    rprand_state[3] = rprand_rotate_left(rprand_state[3], 11);
+
+    return result;
+}
+
+// SplitMix64 generator info:
+//   
+//   Written in 2015 by Sebastiano Vigna (vigna@acm.org)
+//   
+//   To the extent possible under law, the author has dedicated all copyright
+//   and related and neighboring rights to this software to the public domain
+//   worldwide. This software is distributed without any warranty.
+//   
+//   See <http://creativecommons.org/publicdomain/zero/1.0/>.
+//   
+//
+//   This is a fixed-increment version of Java 8's SplittableRandom generator
+//   See http://dx.doi.org/10.1145/2714064.2660195 and
+//   http://docs.oracle.com/javase/8/docs/api/java/util/SplittableRandom.html
+//   
+//   It is a very fast generator passing BigCrush, and it can be useful if
+//   for some reason you absolutely want 64 bits of state.
+uint64_t rprand_splitmix64()
+{
+    uint64_t z = (rprand_seed += 0x9e3779b97f4a7c15);
+    z = (z ^ (z >> 30))*0xbf58476d1ce4e5b9;
+    z = (z ^ (z >> 27))*0x94d049bb133111eb;
+    return z ^ (z >> 31);
+}
+
+#endif  // RPRAND_IMPLEMENTATION

raylib/external/sdefl.h

@@ -0,0 +1,790 @@
+/*# Small Deflate
+`sdefl` is a small bare bone lossless compression library in ANSI C (ISO C90)
+which implements the Deflate (RFC 1951) compressed data format specification standard.
+It is mainly tuned to get as much speed and compression ratio from as little code
+as needed to keep the implementation as concise as possible.
+
+## Features
+- Portable single header and source file duo written in ANSI C (ISO C90)
+- Dual license with either MIT or public domain
+- Small implementation
+    - Deflate: 525 LoC
+    - Inflate: 320 LoC
+- Webassembly:
+    - Deflate ~3.7 KB (~2.2KB compressed)
+    - Inflate ~3.6 KB (~2.2KB compressed)
+
+## Usage:
+This file behaves differently depending on what symbols you define
+before including it.
+
+Header-File mode:
+If you do not define `SDEFL_IMPLEMENTATION` before including this file, it
+will operate in header only mode. In this mode it declares all used structs
+and the API of the library without including the implementation of the library.
+
+Implementation mode:
+If you define `SDEFL_IMPLEMENTATION` before including this file, it will
+compile the implementation . Make sure that you only include
+this file implementation in *one* C or C++ file to prevent collisions.
+
+### Benchmark
+
+| Compressor name         | Compression| Decompress.| Compr. size | Ratio |
+| ------------------------| -----------| -----------| ----------- | ----- |
+| miniz 1.0 -1            |   122 MB/s |   208 MB/s |    48510028 | 48.51 |
+| miniz 1.0 -6            |    27 MB/s |   260 MB/s |    36513697 | 36.51 |
+| miniz 1.0 -9            |    23 MB/s |   261 MB/s |    36460101 | 36.46 |
+| zlib 1.2.11 -1          |    72 MB/s |   307 MB/s |    42298774 | 42.30 |
+| zlib 1.2.11 -6          |    24 MB/s |   313 MB/s |    36548921 | 36.55 |
+| zlib 1.2.11 -9          |    20 MB/s |   314 MB/s |    36475792 | 36.48 |
+| sdefl 1.0 -0            |   127 MB/s |   355 MB/s |    40004116 | 39.88 |
+| sdefl 1.0 -1            |   111 MB/s |   413 MB/s |    38940674 | 38.82 |
+| sdefl 1.0 -5            |    45 MB/s |   436 MB/s |    36577183 | 36.46 |
+| sdefl 1.0 -7            |    38 MB/s |   432 MB/s |    36523781 | 36.41 |
+| libdeflate 1.3 -1       |   147 MB/s |   667 MB/s |    39597378 | 39.60 |
+| libdeflate 1.3 -6       |    69 MB/s |   689 MB/s |    36648318 | 36.65 |
+| libdeflate 1.3 -9       |    13 MB/s |   672 MB/s |    35197141 | 35.20 |
+| libdeflate 1.3 -12      |  8.13 MB/s |   670 MB/s |    35100568 | 35.10 |
+
+### Compression
+Results on the [Silesia compression corpus](http://sun.aei.polsl.pl/~sdeor/index.php?page=silesia):
+
+| File    |   Original | `sdefl 0`    | `sdefl 5`  | `sdefl 7`   |
+| --------| -----------| -------------| ---------- | ------------|
+| dickens | 10.192.446 | 4,260,187    |  3,845,261 |   3,833,657 |
+| mozilla | 51.220.480 | 20,774,706   | 19,607,009 |  19,565,867 |
+| mr      |  9.970.564 | 3,860,531    |  3,673,460 |   3,665,627 |
+| nci     | 33.553.445 | 4,030,283    |  3,094,526 |   3,006,075 |
+| ooffice |  6.152.192 | 3,320,063    |  3,186,373 |   3,183,815 |
+| osdb    | 10.085.684 | 3,919,646    |  3,649,510 |   3,649,477 |
+| reymont |  6.627.202 | 2,263,378    |  1,857,588 |   1,827,237 |
+| samba   | 21.606.400 | 6,121,797    |  5,462,670 |   5,450,762 |
+| sao     |  7.251.944 | 5,612,421    |  5,485,380 |   5,481,765 |
+| webster | 41.458.703 | 13,972,648   | 12,059,432 |  11,991,421 |
+| xml     |  5.345.280 | 886,620      |    674,009 |     662,141 |
+| x-ray   |  8.474.240 | 6,304,655    |  6,244,779 |   6,244,779 |
+
+## License
+```
+------------------------------------------------------------------------------
+This software is available under 2 licenses -- choose whichever you prefer.
+------------------------------------------------------------------------------
+ALTERNATIVE A - MIT License
+Copyright (c) 2020-2023 Micha Mettke
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+------------------------------------------------------------------------------
+ALTERNATIVE B - Public Domain (www.unlicense.org)
+This is free and unencumbered software released into the public domain.
+Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
+software, either in source code form or as a compiled binary, for any purpose,
+commercial or non-commercial, and by any means.
+In jurisdictions that recognize copyright laws, the author or authors of this
+software dedicate any and all copyright interest in the software to the public
+domain. We make this dedication for the benefit of the public at large and to
+the detriment of our heirs and successors. We intend this dedication to be an
+overt act of relinquishment in perpetuity of all present and future rights to
+this software under copyright law.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+------------------------------------------------------------------------------
+```
+*/
+#ifndef SDEFL_H_INCLUDED
+#define SDEFL_H_INCLUDED
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SDEFL_MAX_OFF   (1 << 15)
+#define SDEFL_WIN_SIZ   SDEFL_MAX_OFF
+#define SDEFL_WIN_MSK   (SDEFL_WIN_SIZ-1)
+
+#define SDEFL_HASH_BITS 15
+#define SDEFL_HASH_SIZ  (1 << SDEFL_HASH_BITS)
+#define SDEFL_HASH_MSK  (SDEFL_HASH_SIZ-1)
+
+#define SDEFL_MIN_MATCH 4
+#define SDEFL_BLK_MAX   (256*1024)
+#define SDEFL_SEQ_SIZ   ((SDEFL_BLK_MAX+2)/3)
+
+#define SDEFL_SYM_MAX   (288)
+#define SDEFL_OFF_MAX   (32)
+#define SDEFL_PRE_MAX   (19)
+
+#define SDEFL_LVL_MIN   0
+#define SDEFL_LVL_DEF   5
+#define SDEFL_LVL_MAX   8
+
+struct sdefl_freq {
+  unsigned lit[SDEFL_SYM_MAX];
+  unsigned off[SDEFL_OFF_MAX];
+};
+struct sdefl_code_words {
+  unsigned lit[SDEFL_SYM_MAX];
+  unsigned off[SDEFL_OFF_MAX];
+};
+struct sdefl_lens {
+  unsigned char lit[SDEFL_SYM_MAX];
+  unsigned char off[SDEFL_OFF_MAX];
+};
+struct sdefl_codes {
+  struct sdefl_code_words word;
+  struct sdefl_lens len;
+};
+struct sdefl_seqt {
+  int off, len;
+};
+struct sdefl {
+  int bits, bitcnt;
+  int tbl[SDEFL_HASH_SIZ];
+  int prv[SDEFL_WIN_SIZ];
+
+  int seq_cnt;
+  struct sdefl_seqt seq[SDEFL_SEQ_SIZ];
+  struct sdefl_freq freq;
+  struct sdefl_codes cod;
+};
+extern int sdefl_bound(int in_len);
+extern int sdeflate(struct sdefl *s, void *o, const void *i, int n, int lvl);
+extern int zsdeflate(struct sdefl *s, void *o, const void *i, int n, int lvl);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SDEFL_H_INCLUDED */
+
+#ifdef SDEFL_IMPLEMENTATION
+
+#include <assert.h> /* assert */
+#include <string.h> /* memcpy */
+#include <limits.h> /* CHAR_BIT */
+
+#define SDEFL_NIL               (-1)
+#define SDEFL_MAX_MATCH         258
+#define SDEFL_MAX_CODE_LEN      (15)
+#define SDEFL_SYM_BITS          (10u)
+#define SDEFL_SYM_MSK           ((1u << SDEFL_SYM_BITS)-1u)
+#define SDEFL_RAW_BLK_SIZE      (65535)
+#define SDEFL_LIT_LEN_CODES     (14)
+#define SDEFL_OFF_CODES         (15)
+#define SDEFL_PRE_CODES         (7)
+#define SDEFL_CNT_NUM(n)        ((((n)+3u/4u)+3u)&~3u)
+#define SDEFL_EOB               (256)
+
+#define sdefl_npow2(n) (1 << (sdefl_ilog2((n)-1) + 1))
+#define sdefl_div_round_up(n,d) (((n)+((d)-1))/(d))
+
+static int
+sdefl_ilog2(int n) {
+  if (!n) return 0;
+#ifdef _MSC_VER
+  unsigned long msbp = 0;
+  _BitScanReverse(&msbp, (unsigned long)n);
+  return (int)msbp;
+#elif defined(__GNUC__) || defined(__clang__)
+  return (int)sizeof(unsigned long) * CHAR_BIT - 1 - __builtin_clzl((unsigned long)n);
+#else
+  #define lt(n) n, n, n, n, n, n, n, n, n, n, n, n, n, n, n, n
+  static const char tbl[256] = {
+    0,0,1,1,2,2,2,2,3,3,3,3,3,3,3,3,lt(4), lt(5), lt(5), lt(6), lt(6), lt(6), lt(6),
+    lt(7), lt(7), lt(7), lt(7), lt(7), lt(7), lt(7), lt(7)};
+  int tt, t;
+  if ((tt = (n >> 16))) {
+    return (t = (tt >> 8)) ? 24 + tbl[t] : 16 + tbl[tt];
+  } else {
+    return (t = (n >> 8)) ? 8 + tbl[t] : tbl[n];
+  }
+  #undef lt
+#endif
+}
+static unsigned
+sdefl_uload32(const void *p) {
+  /* hopefully will be optimized to an unaligned read */
+  unsigned n = 0;
+  memcpy(&n, p, sizeof(n));
+  return n;
+}
+static unsigned
+sdefl_hash32(const void *p) {
+  unsigned n = sdefl_uload32(p);
+  return (n * 0x9E377989) >> (32 - SDEFL_HASH_BITS);
+}
+static void
+sdefl_put(unsigned char **dst, struct sdefl *s, int code, int bitcnt) {
+  s->bits |= (code << s->bitcnt);
+  s->bitcnt += bitcnt;
+  while (s->bitcnt >= 8) {
+    unsigned char *tar = *dst;
+    *tar = (unsigned char)(s->bits & 0xFF);
+    s->bits >>= 8;
+    s->bitcnt -= 8;
+    *dst = *dst + 1;
+  }
+}
+static void
+sdefl_heap_sub(unsigned A[], unsigned len, unsigned sub) {
+  unsigned c, p = sub;
+  unsigned v = A[sub];
+  while ((c = p << 1) <= len) {
+    if (c < len && A[c + 1] > A[c]) c++;
+    if (v >= A[c]) break;
+    A[p] = A[c], p = c;
+  }
+  A[p] = v;
+}
+static void
+sdefl_heap_array(unsigned *A, unsigned len) {
+  unsigned sub;
+  for (sub = len >> 1; sub >= 1; sub--)
+    sdefl_heap_sub(A, len, sub);
+}
+static void
+sdefl_heap_sort(unsigned *A, unsigned n) {
+  A--;
+  sdefl_heap_array(A, n);
+  while (n >= 2) {
+    unsigned tmp = A[n];
+    A[n--] = A[1];
+    A[1] = tmp;
+    sdefl_heap_sub(A, n, 1);
+  }
+}
+static unsigned
+sdefl_sort_sym(unsigned sym_cnt, unsigned *freqs,
+               unsigned char *lens, unsigned *sym_out) {
+  unsigned cnts[SDEFL_CNT_NUM(SDEFL_SYM_MAX)] = {0};
+  unsigned cnt_num = SDEFL_CNT_NUM(sym_cnt);
+  unsigned used_sym = 0;
+  unsigned sym, i;
+  for (sym = 0; sym < sym_cnt; sym++)
+    cnts[freqs[sym] < cnt_num-1 ? freqs[sym]: cnt_num-1]++;
+  for (i = 1; i < cnt_num; i++) {
+    unsigned cnt = cnts[i];
+    cnts[i] = used_sym;
+    used_sym += cnt;
+  }
+  for (sym = 0; sym < sym_cnt; sym++) {
+    unsigned freq = freqs[sym];
+    if (freq) {
+        unsigned idx = freq < cnt_num-1 ? freq : cnt_num-1;
+        sym_out[cnts[idx]++] = sym | (freq << SDEFL_SYM_BITS);
+    } else lens[sym] = 0;
+  }
+  sdefl_heap_sort(sym_out + cnts[cnt_num-2], cnts[cnt_num-1] - cnts[cnt_num-2]);
+  return used_sym;
+}
+static void
+sdefl_build_tree(unsigned *A, unsigned sym_cnt) {
+  unsigned i = 0, b = 0, e = 0;
+  do {
+    unsigned m, n, freq_shift;
+    if (i != sym_cnt && (b == e || (A[i] >> SDEFL_SYM_BITS) <= (A[b] >> SDEFL_SYM_BITS)))
+      m = i++;
+    else m = b++;
+    if (i != sym_cnt && (b == e || (A[i] >> SDEFL_SYM_BITS) <= (A[b] >> SDEFL_SYM_BITS)))
+      n = i++;
+    else n = b++;
+
+    freq_shift = (A[m] & ~SDEFL_SYM_MSK) + (A[n] & ~SDEFL_SYM_MSK);
+    A[m] = (A[m] & SDEFL_SYM_MSK) | (e << SDEFL_SYM_BITS);
+    A[n] = (A[n] & SDEFL_SYM_MSK) | (e << SDEFL_SYM_BITS);
+    A[e] = (A[e] & SDEFL_SYM_MSK) | freq_shift;
+  } while (sym_cnt - ++e > 1);
+}
+static void
+sdefl_gen_len_cnt(unsigned *A, unsigned root, unsigned *len_cnt,
+                  unsigned max_code_len) {
+  int n;
+  unsigned i;
+  for (i = 0; i <= max_code_len; i++)
+    len_cnt[i] = 0;
+  len_cnt[1] = 2;
+
+  A[root] &= SDEFL_SYM_MSK;
+  for (n = (int)root - 1; n >= 0; n--) {
+    unsigned p = A[n] >> SDEFL_SYM_BITS;
+    unsigned pdepth = A[p] >> SDEFL_SYM_BITS;
+    unsigned depth = pdepth + 1;
+    unsigned len = depth;
+
+    A[n] = (A[n] & SDEFL_SYM_MSK) | (depth << SDEFL_SYM_BITS);
+    if (len >= max_code_len) {
+      len = max_code_len;
+      do len--; while (!len_cnt[len]);
+    }
+    len_cnt[len]--;
+    len_cnt[len+1] += 2;
+  }
+}
+static void
+sdefl_gen_codes(unsigned *A, unsigned char *lens, const unsigned *len_cnt,
+                unsigned max_code_word_len, unsigned sym_cnt) {
+  unsigned i, sym, len, nxt[SDEFL_MAX_CODE_LEN + 1];
+  for (i = 0, len = max_code_word_len; len >= 1; len--) {
+    unsigned cnt = len_cnt[len];
+    while (cnt--) lens[A[i++] & SDEFL_SYM_MSK] = (unsigned char)len;
+  }
+  nxt[0] = nxt[1] = 0;
+  for (len = 2; len <= max_code_word_len; len++)
+    nxt[len] = (nxt[len-1] + len_cnt[len-1]) << 1;
+  for (sym = 0; sym < sym_cnt; sym++)
+    A[sym] = nxt[lens[sym]]++;
+}
+static unsigned
+sdefl_rev(unsigned c, unsigned char n) {
+  c = ((c & 0x5555) << 1) | ((c & 0xAAAA) >> 1);
+  c = ((c & 0x3333) << 2) | ((c & 0xCCCC) >> 2);
+  c = ((c & 0x0F0F) << 4) | ((c & 0xF0F0) >> 4);
+  c = ((c & 0x00FF) << 8) | ((c & 0xFF00) >> 8);
+  return c >> (16-n);
+}
+static void
+sdefl_huff(unsigned char *lens, unsigned *codes, unsigned *freqs,
+           unsigned num_syms, unsigned max_code_len) {
+  unsigned c, *A = codes;
+  unsigned len_cnt[SDEFL_MAX_CODE_LEN + 1];
+  unsigned used_syms = sdefl_sort_sym(num_syms, freqs, lens, A);
+  if (!used_syms) return;
+  if (used_syms == 1) {
+    unsigned s = A[0] & SDEFL_SYM_MSK;
+    unsigned i = s ? s : 1;
+    codes[0] = 0, lens[0] = 1;
+    codes[i] = 1, lens[i] = 1;
+    return;
+  }
+  sdefl_build_tree(A, used_syms);
+  sdefl_gen_len_cnt(A, used_syms-2, len_cnt, max_code_len);
+  sdefl_gen_codes(A, lens, len_cnt, max_code_len, num_syms);
+  for (c = 0; c < num_syms; c++) {
+    codes[c] = sdefl_rev(codes[c], lens[c]);
+  }
+}
+struct sdefl_symcnt {
+  int items;
+  int lit;
+  int off;
+};
+static void
+sdefl_precode(struct sdefl_symcnt *cnt, unsigned *freqs, unsigned *items,
+              const unsigned char *litlen, const unsigned char *offlen) {
+  unsigned *at = items;
+  unsigned run_start = 0;
+
+  unsigned total = 0;
+  unsigned char lens[SDEFL_SYM_MAX + SDEFL_OFF_MAX];
+  for (cnt->lit = SDEFL_SYM_MAX; cnt->lit > 257; cnt->lit--)
+    if (litlen[cnt->lit - 1]) break;
+  for (cnt->off = SDEFL_OFF_MAX; cnt->off > 1; cnt->off--)
+    if (offlen[cnt->off - 1]) break;
+
+  total = (unsigned)(cnt->lit + cnt->off);
+  memcpy(lens, litlen, sizeof(unsigned char) * (size_t)cnt->lit);
+  memcpy(lens + cnt->lit, offlen, sizeof(unsigned char) * (size_t)cnt->off);
+  do {
+    unsigned len = lens[run_start];
+    unsigned run_end = run_start;
+    do run_end++; while (run_end != total && len == lens[run_end]);
+    if (!len) {
+      while ((run_end - run_start) >= 11) {
+        unsigned n = (run_end - run_start) - 11;
+        unsigned xbits =  n < 0x7f ? n : 0x7f;
+        freqs[18]++;
+        *at++ = 18u | (xbits << 5u);
+        run_start += 11 + xbits;
+      }
+      if ((run_end - run_start) >= 3) {
+        unsigned n = (run_end - run_start) - 3;
+        unsigned xbits =  n < 0x7 ? n : 0x7;
+        freqs[17]++;
+        *at++ = 17u | (xbits << 5u);
+        run_start += 3 + xbits;
+      }
+    } else if ((run_end - run_start) >= 4) {
+      freqs[len]++;
+      *at++ = len;
+      run_start++;
+      do {
+        unsigned xbits = (run_end - run_start) - 3;
+        xbits = xbits < 0x03 ? xbits : 0x03;
+        *at++ = 16 | (xbits << 5);
+        run_start += 3 + xbits;
+        freqs[16]++;
+      } while ((run_end - run_start) >= 3);
+    }
+    while (run_start != run_end) {
+      freqs[len]++;
+      *at++ = len;
+      run_start++;
+    }
+  } while (run_start != total);
+  cnt->items = (int)(at - items);
+}
+struct sdefl_match_codest {
+  int ls, lc;
+  int dc, dx;
+};
+static void
+sdefl_match_codes(struct sdefl_match_codest *cod, int dist, int len) {
+  static const short dxmax[] = {0,6,12,24,48,96,192,384,768,1536,3072,6144,12288,24576};
+  static const unsigned char lslot[258+1] = {
+    0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12,
+    12, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 16,
+    16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18,
+    18, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20,
+    20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
+    21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
+    22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
+    23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24,
+    24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25,
+    25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,
+    25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26,
+    26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26,
+    26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+    27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27,
+    27, 27, 28
+  };
+  assert(len <= 258);
+  assert(dist <= 32768);
+  cod->ls = lslot[len];
+  cod->lc = 257 + cod->ls;
+  assert(cod->lc <= 285);
+
+  cod->dx = sdefl_ilog2(sdefl_npow2(dist) >> 2);
+  cod->dc = cod->dx ? ((cod->dx + 1) << 1) + (dist > dxmax[cod->dx]) : dist-1;
+}
+enum sdefl_blk_type {
+  SDEFL_BLK_UCOMPR,
+  SDEFL_BLK_DYN
+};
+static enum sdefl_blk_type
+sdefl_blk_type(const struct sdefl *s, int blk_len, int pre_item_len,
+               const unsigned *pre_freq, const unsigned char *pre_len) {
+  static const unsigned char x_pre_bits[] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
+  static const unsigned char x_len_bits[] = {0,0,0,0,0,0,0,0, 1,1,1,1,2,2,2,2,
+    3,3,3,3,4,4,4,4, 5,5,5,5,0};
+  static const unsigned char x_off_bits[] = {0,0,0,0,1,1,2,2, 3,3,4,4,5,5,6,6,
+    7,7,8,8,9,9,10,10, 11,11,12,12,13,13};
+
+  int dyn_cost = 0;
+  int fix_cost = 0;
+  int sym = 0;
+
+  dyn_cost += 5 + 5 + 4 + (3 * pre_item_len);
+  for (sym = 0; sym < SDEFL_PRE_MAX; sym++)
+    dyn_cost += pre_freq[sym] * (x_pre_bits[sym] + pre_len[sym]);
+  for (sym = 0; sym < 256; sym++)
+    dyn_cost += s->freq.lit[sym] * s->cod.len.lit[sym];
+  dyn_cost += s->cod.len.lit[SDEFL_EOB];
+  for (sym = 257; sym < 286; sym++)
+    dyn_cost += s->freq.lit[sym] * (x_len_bits[sym - 257] + s->cod.len.lit[sym]);
+  for (sym = 0; sym < 30; sym++)
+    dyn_cost += s->freq.off[sym] * (x_off_bits[sym] + s->cod.len.off[sym]);
+
+  fix_cost += 8*(5 * sdefl_div_round_up(blk_len, SDEFL_RAW_BLK_SIZE) + blk_len + 1 + 2);
+  return (dyn_cost < fix_cost) ? SDEFL_BLK_DYN : SDEFL_BLK_UCOMPR;
+}
+static void
+sdefl_put16(unsigned char **dst, unsigned short x) {
+  unsigned char *val = *dst;
+  val[0] = (unsigned char)(x & 0xff);
+  val[1] = (unsigned char)(x >> 8);
+  *dst = val + 2;
+}
+static void
+sdefl_match(unsigned char **dst, struct sdefl *s, int dist, int len) {
+  static const char lxn[] = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
+  static const short lmin[] = {3,4,5,6,7,8,9,10,11,13,15,17,19,23,27,31,35,43,
+      51,59,67,83,99,115,131,163,195,227,258};
+  static const short dmin[] = {1,2,3,4,5,7,9,13,17,25,33,49,65,97,129,193,257,
+      385,513,769,1025,1537,2049,3073,4097,6145,8193,12289,16385,24577};
+
+  struct sdefl_match_codest cod;
+  sdefl_match_codes(&cod, dist, len);
+  sdefl_put(dst, s, (int)s->cod.word.lit[cod.lc], s->cod.len.lit[cod.lc]);
+  sdefl_put(dst, s, len - lmin[cod.ls], lxn[cod.ls]);
+  sdefl_put(dst, s, (int)s->cod.word.off[cod.dc], s->cod.len.off[cod.dc]);
+  sdefl_put(dst, s, dist - dmin[cod.dc], cod.dx);
+}
+static void
+sdefl_flush(unsigned char **dst, struct sdefl *s, int is_last,
+            const unsigned char *in, int blk_begin, int blk_end) {
+  int blk_len = blk_end - blk_begin;
+  int j, i = 0, item_cnt = 0;
+  struct sdefl_symcnt symcnt = {0};
+  unsigned codes[SDEFL_PRE_MAX];
+  unsigned char lens[SDEFL_PRE_MAX];
+  unsigned freqs[SDEFL_PRE_MAX] = {0};
+  unsigned items[SDEFL_SYM_MAX + SDEFL_OFF_MAX];
+  static const unsigned char perm[SDEFL_PRE_MAX] = {16,17,18,0,8,7,9,6,10,5,11,
+      4,12,3,13,2,14,1,15};
+
+  /* calculate huffman codes */
+  s->freq.lit[SDEFL_EOB]++;
+  sdefl_huff(s->cod.len.lit, s->cod.word.lit, s->freq.lit, SDEFL_SYM_MAX, SDEFL_LIT_LEN_CODES);
+  sdefl_huff(s->cod.len.off, s->cod.word.off, s->freq.off, SDEFL_OFF_MAX, SDEFL_OFF_CODES);
+  sdefl_precode(&symcnt, freqs, items, s->cod.len.lit, s->cod.len.off);
+  sdefl_huff(lens, codes, freqs, SDEFL_PRE_MAX, SDEFL_PRE_CODES);
+  for (item_cnt = SDEFL_PRE_MAX; item_cnt > 4; item_cnt--) {
+    if (lens[perm[item_cnt - 1]]){
+      break;
+    }
+  }
+  /* write block */
+  switch (sdefl_blk_type(s, blk_len, item_cnt, freqs, lens)) {
+  case SDEFL_BLK_UCOMPR: {
+    /* uncompressed blocks */
+    int n = sdefl_div_round_up(blk_len, SDEFL_RAW_BLK_SIZE);
+    for (i = 0; i < n; ++i) {
+      int fin = is_last && (i + 1 == n);
+      int amount = blk_len < SDEFL_RAW_BLK_SIZE ? blk_len : SDEFL_RAW_BLK_SIZE;
+      sdefl_put(dst, s, !!fin, 1); /* block */
+      sdefl_put(dst, s, 0x00, 2); /* stored block */
+      if (s->bitcnt) {
+        sdefl_put(dst, s, 0x00, 8 - s->bitcnt);
+      }
+      assert(s->bitcnt == 0);
+      sdefl_put16(dst, (unsigned short)amount);
+      sdefl_put16(dst, ~(unsigned short)amount);
+      memcpy(*dst, in + blk_begin + i * SDEFL_RAW_BLK_SIZE, amount);
+      *dst = *dst + amount;
+      blk_len -= amount;
+    }
+  } break;
+  case SDEFL_BLK_DYN: {
+    /* dynamic huffman block */
+    sdefl_put(dst, s, !!is_last, 1); /* block */
+    sdefl_put(dst, s, 0x02, 2); /* dynamic huffman */
+    sdefl_put(dst, s, symcnt.lit - 257, 5);
+    sdefl_put(dst, s, symcnt.off - 1, 5);
+    sdefl_put(dst, s, item_cnt - 4, 4);
+    for (i = 0; i < item_cnt; ++i) {
+      sdefl_put(dst, s, lens[perm[i]], 3);
+    }
+    for (i = 0; i < symcnt.items; ++i) {
+      unsigned sym = items[i] & 0x1F;
+      sdefl_put(dst, s, (int)codes[sym], lens[sym]);
+      if (sym < 16) continue;
+      if (sym == 16) sdefl_put(dst, s, items[i] >> 5, 2);
+      else if(sym == 17) sdefl_put(dst, s, items[i] >> 5, 3);
+      else sdefl_put(dst, s, items[i] >> 5, 7);
+    }
+    /* block sequences */
+    for (i = 0; i < s->seq_cnt; ++i) {
+      if (s->seq[i].off >= 0) {
+        for (j = 0; j < s->seq[i].len; ++j) {
+          int c = in[s->seq[i].off + j];
+          sdefl_put(dst, s, (int)s->cod.word.lit[c], s->cod.len.lit[c]);
+        }
+      } else {
+        sdefl_match(dst, s, -s->seq[i].off, s->seq[i].len);
+      }
+    }
+    sdefl_put(dst, s, (int)(s)->cod.word.lit[SDEFL_EOB], (s)->cod.len.lit[SDEFL_EOB]);
+  } break;}
+  memset(&s->freq, 0, sizeof(s->freq));
+  s->seq_cnt = 0;
+}
+static void
+sdefl_seq(struct sdefl *s, int off, int len) {
+  assert(s->seq_cnt + 2 < SDEFL_SEQ_SIZ);
+  s->seq[s->seq_cnt].off = off;
+  s->seq[s->seq_cnt].len = len;
+  s->seq_cnt++;
+}
+static void
+sdefl_reg_match(struct sdefl *s, int off, int len) {
+  struct sdefl_match_codest cod;
+  sdefl_match_codes(&cod, off, len);
+
+  assert(cod.lc < SDEFL_SYM_MAX);
+  assert(cod.dc < SDEFL_OFF_MAX);
+
+  s->freq.lit[cod.lc]++;
+  s->freq.off[cod.dc]++;
+}
+struct sdefl_match {
+  int off;
+  int len;
+};
+static void
+sdefl_fnd(struct sdefl_match *m, const struct sdefl *s, int chain_len,
+          int max_match, const unsigned char *in, int p, int e) {
+  int i = s->tbl[sdefl_hash32(in + p)];
+  int limit = ((p - SDEFL_WIN_SIZ) < SDEFL_NIL) ? SDEFL_NIL : (p-SDEFL_WIN_SIZ);
+
+  assert(p < e);
+  assert(p + max_match <= e);
+  while (i > limit) {
+    assert(i + m->len < e);
+    assert(p + m->len < e);
+    assert(i + SDEFL_MIN_MATCH < e);
+    assert(p + SDEFL_MIN_MATCH < e);
+
+    if (in[i + m->len] == in[p + m->len] &&
+      (sdefl_uload32(&in[i]) == sdefl_uload32(&in[p]))) {
+      int n = SDEFL_MIN_MATCH;
+      while (n < max_match && in[i + n] == in[p + n]) {
+        assert(i + n < e);
+        assert(p + n < e);
+        n++;
+      }
+      if (n > m->len) {
+        m->len = n, m->off = p - i;
+        if (n == max_match)
+          break;
+      }
+    }
+    if (!(--chain_len)) break;
+    i = s->prv[i & SDEFL_WIN_MSK];
+  }
+}
+static int
+sdefl_compr(struct sdefl *s, unsigned char *out, const unsigned char *in,
+            int in_len, int lvl) {
+  unsigned char *q = out;
+  static const unsigned char pref[] = {8,10,14,24,30,48,65,96,130};
+  int max_chain = (lvl < 8) ? (1 << (lvl + 1)): (1 << 13);
+  int n, i = 0, litlen = 0;
+  for (n = 0; n < SDEFL_HASH_SIZ; ++n) {
+    s->tbl[n] = SDEFL_NIL;
+  }
+  do {int blk_begin = i;
+    int blk_end = ((i + SDEFL_BLK_MAX) < in_len) ? (i + SDEFL_BLK_MAX) : in_len;
+    while (i < blk_end) {
+      struct sdefl_match m = {0};
+      int left = blk_end - i;
+      int max_match = (left > SDEFL_MAX_MATCH) ? SDEFL_MAX_MATCH : left;
+      int nice_match = pref[lvl] < max_match ? pref[lvl] : max_match;
+      int run = 1, inc = 1, run_inc = 0;
+      if (max_match > SDEFL_MIN_MATCH) {
+        sdefl_fnd(&m, s, max_chain, max_match, in, i, in_len);
+      }
+      if (lvl >= 5 && m.len >= SDEFL_MIN_MATCH && m.len + 1 < nice_match){
+        struct sdefl_match m2 = {0};
+        sdefl_fnd(&m2, s, max_chain, m.len + 1, in, i + 1, in_len);
+        m.len = (m2.len > m.len) ? 0 : m.len;
+      }
+      if (m.len >= SDEFL_MIN_MATCH) {
+        if (litlen) {
+          sdefl_seq(s, i - litlen, litlen);
+          litlen = 0;
+        }
+        sdefl_seq(s, -m.off, m.len);
+        sdefl_reg_match(s, m.off, m.len);
+        if (lvl < 2 && m.len >= nice_match) {
+          inc = m.len;
+        } else {
+          run = m.len;
+        }
+      } else {
+        s->freq.lit[in[i]]++;
+        litlen++;
+      }
+      run_inc = run * inc;
+      if (in_len - (i + run_inc) > SDEFL_MIN_MATCH) {
+        while (run-- > 0) {
+          unsigned h = sdefl_hash32(&in[i]);
+          s->prv[i&SDEFL_WIN_MSK] = s->tbl[h];
+          s->tbl[h] = i, i += inc;
+          assert(i <= blk_end);
+        }
+      } else {
+        i += run_inc;
+        assert(i <= blk_end);
+      }
+    }
+    if (litlen) {
+      sdefl_seq(s, i - litlen, litlen);
+      litlen = 0;
+    }
+    sdefl_flush(&q, s, blk_end == in_len, in, blk_begin, blk_end);
+  } while (i < in_len);
+  if (s->bitcnt) {
+    sdefl_put(&q, s, 0x00, 8 - s->bitcnt);
+  }
+  assert(s->bitcnt == 0);
+  return (int)(q - out);
+}
+extern int
+sdeflate(struct sdefl *s, void *out, const void *in, int n, int lvl) {
+  s->bits = s->bitcnt = 0;
+  return sdefl_compr(s, (unsigned char*)out, (const unsigned char*)in, n, lvl);
+}
+static unsigned
+sdefl_adler32(unsigned adler32, const unsigned char *in, int in_len) {
+  #define SDEFL_ADLER_INIT (1)
+  const unsigned ADLER_MOD = 65521;
+  unsigned s1 = adler32 & 0xffff;
+  unsigned s2 = adler32 >> 16;
+  unsigned blk_len, i;
+
+  blk_len = in_len % 5552;
+  while (in_len) {
+    for (i = 0; i + 7 < blk_len; i += 8) {
+      s1 += in[0]; s2 += s1;
+      s1 += in[1]; s2 += s1;
+      s1 += in[2]; s2 += s1;
+      s1 += in[3]; s2 += s1;
+      s1 += in[4]; s2 += s1;
+      s1 += in[5]; s2 += s1;
+      s1 += in[6]; s2 += s1;
+      s1 += in[7]; s2 += s1;
+      in += 8;
+    }
+    for (; i < blk_len; ++i) {
+      s1 += *in++, s2 += s1;
+    }
+    s1 %= ADLER_MOD;
+    s2 %= ADLER_MOD;
+    in_len -= blk_len;
+    blk_len = 5552;
+  }
+  return (unsigned)(s2 << 16) + (unsigned)s1;
+}
+extern int
+zsdeflate(struct sdefl *s, void *out, const void *in, int n, int lvl) {
+  int p = 0;
+  unsigned a = 0;
+  unsigned char *q = (unsigned char*)out;
+
+  s->bits = s->bitcnt = 0;
+  sdefl_put(&q, s, 0x78, 8); /* deflate, 32k window */
+  sdefl_put(&q, s, 0x01, 8); /* fast compression */
+  q += sdefl_compr(s, q, (const unsigned char*)in, n, lvl);
+
+  /* append adler checksum */
+  a = sdefl_adler32(SDEFL_ADLER_INIT, (const unsigned char*)in, n);
+  for (p = 0; p < 4; ++p) {
+    sdefl_put(&q, s, (a >> 24) & 0xFF, 8);
+    a <<= 8;
+  }
+  return (int)(q - (unsigned char*)out);
+}
+extern int
+sdefl_bound(int len) {
+  int max_blocks = 1 + sdefl_div_round_up(len, SDEFL_RAW_BLK_SIZE);
+  int bound = 5 * max_blocks + len + 1 + 4 + 8;
+  return bound;
+}
+#endif /* SDEFL_IMPLEMENTATION */