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1 //========================================================================
2 // GLFW 3.5 - www.glfw.org
3 //------------------------------------------------------------------------
4 // Copyright (c) 2002-2006 Marcus Geelnard
5 // Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
6 //
7 // This software is provided 'as-is', without any express or implied
8 // warranty. In no event will the authors be held liable for any damages
9 // arising from the use of this software.
10 //
11 // Permission is granted to anyone to use this software for any purpose,
12 // including commercial applications, and to alter it and redistribute it
13 // freely, subject to the following restrictions:
14 //
15 // 1. The origin of this software must not be misrepresented; you must not
16 //    claim that you wrote the original software. If you use this software
17 //    in a product, an acknowledgment in the product documentation would
18 //    be appreciated but is not required.
19 //
20 // 2. Altered source versions must be plainly marked as such, and must not
21 //    be misrepresented as being the original software.
22 //
23 // 3. This notice may not be removed or altered from any source
24 //    distribution.
25 //
26 //========================================================================
27 
28 #pragma once
29 
30 #if defined(_GLFW_USE_CONFIG_H)
31  #include "glfw_config.h"
32 #endif
33 
34 #if defined(GLFW_INCLUDE_GLCOREARB) || \
35     defined(GLFW_INCLUDE_ES1)       || \
36     defined(GLFW_INCLUDE_ES2)       || \
37     defined(GLFW_INCLUDE_ES3)       || \
38     defined(GLFW_INCLUDE_ES31)      || \
39     defined(GLFW_INCLUDE_ES32)      || \
40     defined(GLFW_INCLUDE_NONE)      || \
41     defined(GLFW_INCLUDE_GLEXT)     || \
42     defined(GLFW_INCLUDE_GLU)       || \
43     defined(GLFW_INCLUDE_VULKAN)    || \
44     defined(GLFW_DLL)
45  #error "You must not define any header option macros when compiling GLFW"
46 #endif
47 
48 #define GLFW_INCLUDE_NONE
49 #include "../include/GLFW/glfw3.h"
50 
51 #include <stdbool.h>
52 
53 #define _GLFW_INSERT_FIRST      0
54 #define _GLFW_INSERT_LAST       1
55 
56 #define _GLFW_POLL_PRESENCE     0
57 #define _GLFW_POLL_AXES         1
58 #define _GLFW_POLL_BUTTONS      2
59 #define _GLFW_POLL_ALL          (_GLFW_POLL_AXES | _GLFW_POLL_BUTTONS)
60 
61 #define _GLFW_MESSAGE_SIZE      1024
62 
63 typedef int GLFWbool;
64 typedef void (*GLFWproc)(void);
65 
66 typedef struct _GLFWerror       _GLFWerror;
67 typedef struct _GLFWinitconfig  _GLFWinitconfig;
68 typedef struct _GLFWwndconfig   _GLFWwndconfig;
69 typedef struct _GLFWctxconfig   _GLFWctxconfig;
70 typedef struct _GLFWfbconfig    _GLFWfbconfig;
71 typedef struct _GLFWcontext     _GLFWcontext;
72 typedef struct _GLFWwindow      _GLFWwindow;
73 typedef struct _GLFWplatform    _GLFWplatform;
74 typedef struct _GLFWlibrary     _GLFWlibrary;
75 typedef struct _GLFWmonitor     _GLFWmonitor;
76 typedef struct _GLFWcursor      _GLFWcursor;
77 typedef struct _GLFWmapelement  _GLFWmapelement;
78 typedef struct _GLFWmapping     _GLFWmapping;
79 typedef struct _GLFWjoystick    _GLFWjoystick;
80 typedef struct _GLFWtls         _GLFWtls;
81 typedef struct _GLFWmutex       _GLFWmutex;
82 
83 #define GL_VERSION 0x1f02
84 #define GL_NONE 0
85 #define GL_COLOR_BUFFER_BIT 0x00004000
86 #define GL_UNSIGNED_BYTE 0x1401
87 #define GL_EXTENSIONS 0x1f03
88 #define GL_NUM_EXTENSIONS 0x821d
89 #define GL_CONTEXT_FLAGS 0x821e
90 #define GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT 0x00000001
91 #define GL_CONTEXT_FLAG_DEBUG_BIT 0x00000002
92 #define GL_CONTEXT_PROFILE_MASK 0x9126
93 #define GL_CONTEXT_COMPATIBILITY_PROFILE_BIT 0x00000002
94 #define GL_CONTEXT_CORE_PROFILE_BIT 0x00000001
95 #define GL_RESET_NOTIFICATION_STRATEGY_ARB 0x8256
96 #define GL_LOSE_CONTEXT_ON_RESET_ARB 0x8252
97 #define GL_NO_RESET_NOTIFICATION_ARB 0x8261
98 #define GL_CONTEXT_RELEASE_BEHAVIOR 0x82fb
99 #define GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH 0x82fc
100 #define GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR 0x00000008
101 
102 typedef int GLint;
103 typedef unsigned int GLuint;
104 typedef unsigned int GLenum;
105 typedef unsigned int GLbitfield;
106 typedef unsigned char GLubyte;
107 
108 typedef void (APIENTRY * PFNGLCLEARPROC)(GLbitfield);
109 typedef const GLubyte* (APIENTRY * PFNGLGETSTRINGPROC)(GLenum);
110 typedef void (APIENTRY * PFNGLGETINTEGERVPROC)(GLenum,GLint*);
111 typedef const GLubyte* (APIENTRY * PFNGLGETSTRINGIPROC)(GLenum,GLuint);
112 
113 #define EGL_SUCCESS 0x3000
114 #define EGL_NOT_INITIALIZED 0x3001
115 #define EGL_BAD_ACCESS 0x3002
116 #define EGL_BAD_ALLOC 0x3003
117 #define EGL_BAD_ATTRIBUTE 0x3004
118 #define EGL_BAD_CONFIG 0x3005
119 #define EGL_BAD_CONTEXT 0x3006
120 #define EGL_BAD_CURRENT_SURFACE 0x3007
121 #define EGL_BAD_DISPLAY 0x3008
122 #define EGL_BAD_MATCH 0x3009
123 #define EGL_BAD_NATIVE_PIXMAP 0x300a
124 #define EGL_BAD_NATIVE_WINDOW 0x300b
125 #define EGL_BAD_PARAMETER 0x300c
126 #define EGL_BAD_SURFACE 0x300d
127 #define EGL_CONTEXT_LOST 0x300e
128 #define EGL_COLOR_BUFFER_TYPE 0x303f
129 #define EGL_RGB_BUFFER 0x308e
130 #define EGL_SURFACE_TYPE 0x3033
131 #define EGL_WINDOW_BIT 0x0004
132 #define EGL_RENDERABLE_TYPE 0x3040
133 #define EGL_OPENGL_ES_BIT 0x0001
134 #define EGL_OPENGL_ES2_BIT 0x0004
135 #define EGL_OPENGL_BIT 0x0008
136 #define EGL_ALPHA_SIZE 0x3021
137 #define EGL_BLUE_SIZE 0x3022
138 #define EGL_GREEN_SIZE 0x3023
139 #define EGL_RED_SIZE 0x3024
140 #define EGL_DEPTH_SIZE 0x3025
141 #define EGL_STENCIL_SIZE 0x3026
142 #define EGL_SAMPLES 0x3031
143 #define EGL_OPENGL_ES_API 0x30a0
144 #define EGL_OPENGL_API 0x30a2
145 #define EGL_NONE 0x3038
146 #define EGL_RENDER_BUFFER 0x3086
147 #define EGL_SINGLE_BUFFER 0x3085
148 #define EGL_EXTENSIONS 0x3055
149 #define EGL_CONTEXT_CLIENT_VERSION 0x3098
150 #define EGL_NATIVE_VISUAL_ID 0x302e
151 #define EGL_NO_SURFACE ((EGLSurface) 0)
152 #define EGL_NO_DISPLAY ((EGLDisplay) 0)
153 #define EGL_NO_CONTEXT ((EGLContext) 0)
154 #define EGL_DEFAULT_DISPLAY ((EGLNativeDisplayType) 0)
155 #define EGL_PBUFFER_BIT 0x0001
156 #define EGL_WIDTH 0x3057
157 #define EGL_HEIGHT 0x3056
158 
159 #define EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR 0x00000002
160 #define EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR 0x00000001
161 #define EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR 0x00000002
162 #define EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR 0x00000001
163 #define EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR 0x31bd
164 #define EGL_NO_RESET_NOTIFICATION_KHR 0x31be
165 #define EGL_LOSE_CONTEXT_ON_RESET_KHR 0x31bf
166 #define EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR 0x00000004
167 #define EGL_CONTEXT_MAJOR_VERSION_KHR 0x3098
168 #define EGL_CONTEXT_MINOR_VERSION_KHR 0x30fb
169 #define EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR 0x30fd
170 #define EGL_CONTEXT_FLAGS_KHR 0x30fc
171 #define EGL_CONTEXT_OPENGL_NO_ERROR_KHR 0x31b3
172 #define EGL_GL_COLORSPACE_KHR 0x309d
173 #define EGL_GL_COLORSPACE_SRGB_KHR 0x3089
174 #define EGL_CONTEXT_RELEASE_BEHAVIOR_KHR 0x2097
175 #define EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR 0
176 #define EGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_KHR 0x2098
177 #define EGL_PLATFORM_X11_EXT 0x31d5
178 #define EGL_PLATFORM_WAYLAND_EXT 0x31d8
179 #define EGL_PRESENT_OPAQUE_EXT 0x31df
180 #define EGL_PLATFORM_ANGLE_ANGLE 0x3202
181 #define EGL_PLATFORM_ANGLE_TYPE_ANGLE 0x3203
182 #define EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE 0x320d
183 #define EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE 0x320e
184 #define EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE 0x3207
185 #define EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE 0x3208
186 #define EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE 0x3450
187 #define EGL_PLATFORM_ANGLE_TYPE_METAL_ANGLE 0x3489
188 #define EGL_PLATFORM_ANGLE_NATIVE_PLATFORM_TYPE_ANGLE 0x348f
189 #define EGL_PLATFORM_SURFACELESS_MESA 0x31dd
190 
191 typedef int EGLint;
192 typedef unsigned int EGLBoolean;
193 typedef unsigned int EGLenum;
194 typedef void* EGLConfig;
195 typedef void* EGLContext;
196 typedef void* EGLDisplay;
197 typedef void* EGLSurface;
198 
199 typedef void* EGLNativeDisplayType;
200 typedef void* EGLNativeWindowType;
201 
202 // EGL function pointer typedefs
203 typedef EGLBoolean (APIENTRY * PFN_eglGetConfigAttrib)(EGLDisplay,EGLConfig,EGLint,EGLint*);
204 typedef EGLBoolean (APIENTRY * PFN_eglGetConfigs)(EGLDisplay,EGLConfig*,EGLint,EGLint*);
205 typedef EGLDisplay (APIENTRY * PFN_eglGetDisplay)(EGLNativeDisplayType);
206 typedef EGLint (APIENTRY * PFN_eglGetError)(void);
207 typedef EGLBoolean (APIENTRY * PFN_eglInitialize)(EGLDisplay,EGLint*,EGLint*);
208 typedef EGLBoolean (APIENTRY * PFN_eglTerminate)(EGLDisplay);
209 typedef EGLBoolean (APIENTRY * PFN_eglBindAPI)(EGLenum);
210 typedef EGLContext (APIENTRY * PFN_eglCreateContext)(EGLDisplay,EGLConfig,EGLContext,const EGLint*);
211 typedef EGLBoolean (APIENTRY * PFN_eglDestroySurface)(EGLDisplay,EGLSurface);
212 typedef EGLBoolean (APIENTRY * PFN_eglDestroyContext)(EGLDisplay,EGLContext);
213 typedef EGLSurface (APIENTRY * PFN_eglCreateWindowSurface)(EGLDisplay,EGLConfig,EGLNativeWindowType,const EGLint*);
214 typedef EGLSurface (APIENTRY * PFN_eglCreatePbufferSurface)(EGLDisplay,EGLContext,const EGLint*);
215 typedef EGLBoolean (APIENTRY * PFN_eglMakeCurrent)(EGLDisplay,EGLSurface,EGLSurface,EGLContext);
216 typedef EGLBoolean (APIENTRY * PFN_eglSwapBuffers)(EGLDisplay,EGLSurface);
217 typedef EGLBoolean (APIENTRY * PFN_eglSwapInterval)(EGLDisplay,EGLint);
218 typedef const char* (APIENTRY * PFN_eglQueryString)(EGLDisplay,EGLint);
219 typedef GLFWglproc (APIENTRY * PFN_eglGetProcAddress)(const char*);
220 #define eglGetConfigAttrib _glfw.egl.GetConfigAttrib
221 #define eglGetConfigs _glfw.egl.GetConfigs
222 #define eglGetDisplay _glfw.egl.GetDisplay
223 #define eglGetError _glfw.egl.GetError
224 #define eglInitialize _glfw.egl.Initialize
225 #define eglTerminate _glfw.egl.Terminate
226 #define eglBindAPI _glfw.egl.BindAPI
227 #define eglCreateContext _glfw.egl.CreateContext
228 #define eglDestroySurface _glfw.egl.DestroySurface
229 #define eglDestroyContext _glfw.egl.DestroyContext
230 #define eglCreateWindowSurface _glfw.egl.CreateWindowSurface
231 #define eglCreatePbufferSurface _glfw.egl.CreatePbufferSurface
232 #define eglMakeCurrent _glfw.egl.MakeCurrent
233 #define eglSwapBuffers _glfw.egl.SwapBuffers
234 #define eglSwapInterval _glfw.egl.SwapInterval
235 #define eglQueryString _glfw.egl.QueryString
236 #define eglGetProcAddress _glfw.egl.GetProcAddress
237 
238 typedef EGLDisplay (APIENTRY * PFNEGLGETPLATFORMDISPLAYEXTPROC)(EGLenum,void*,const EGLint*);
239 typedef EGLSurface (APIENTRY * PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC)(EGLDisplay,EGLConfig,void*,const EGLint*);
240 #define eglGetPlatformDisplayEXT _glfw.egl.GetPlatformDisplayEXT
241 #define eglCreatePlatformWindowSurfaceEXT _glfw.egl.CreatePlatformWindowSurfaceEXT
242 
243 #define OSMESA_RGBA 0x1908
244 #define OSMESA_FORMAT 0x22
245 #define OSMESA_DEPTH_BITS 0x30
246 #define OSMESA_STENCIL_BITS 0x31
247 #define OSMESA_ACCUM_BITS 0x32
248 #define OSMESA_PROFILE 0x33
249 #define OSMESA_CORE_PROFILE 0x34
250 #define OSMESA_COMPAT_PROFILE 0x35
251 #define OSMESA_CONTEXT_MAJOR_VERSION 0x36
252 #define OSMESA_CONTEXT_MINOR_VERSION 0x37
253 
254 typedef void* OSMesaContext;
255 typedef void (*OSMESAproc)(void);
256 
257 typedef OSMesaContext (GLAPIENTRY * PFN_OSMesaCreateContextExt)(GLenum,GLint,GLint,GLint,OSMesaContext);
258 typedef OSMesaContext (GLAPIENTRY * PFN_OSMesaCreateContextAttribs)(const int*,OSMesaContext);
259 typedef void (GLAPIENTRY * PFN_OSMesaDestroyContext)(OSMesaContext);
260 typedef int (GLAPIENTRY * PFN_OSMesaMakeCurrent)(OSMesaContext,void*,int,int,int);
261 typedef int (GLAPIENTRY * PFN_OSMesaGetColorBuffer)(OSMesaContext,int*,int*,int*,void**);
262 typedef int (GLAPIENTRY * PFN_OSMesaGetDepthBuffer)(OSMesaContext,int*,int*,int*,void**);
263 typedef GLFWglproc (GLAPIENTRY * PFN_OSMesaGetProcAddress)(const char*);
264 #define OSMesaCreateContextExt _glfw.osmesa.CreateContextExt
265 #define OSMesaCreateContextAttribs _glfw.osmesa.CreateContextAttribs
266 #define OSMesaDestroyContext _glfw.osmesa.DestroyContext
267 #define OSMesaMakeCurrent _glfw.osmesa.MakeCurrent
268 #define OSMesaGetColorBuffer _glfw.osmesa.GetColorBuffer
269 #define OSMesaGetDepthBuffer _glfw.osmesa.GetDepthBuffer
270 #define OSMesaGetProcAddress _glfw.osmesa.GetProcAddress
271 
272 #define VK_NULL_HANDLE 0
273 
274 typedef void* VkInstance;
275 typedef void* VkPhysicalDevice;
276 typedef uint64_t VkSurfaceKHR;
277 typedef uint32_t VkFlags;
278 typedef uint32_t VkBool32;
279 
280 typedef enum VkStructureType
281 {
282     VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR = 1000004000,
283     VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR = 1000005000,
284     VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR = 1000006000,
285     VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR = 1000009000,
286     VK_STRUCTURE_TYPE_MACOS_SURFACE_CREATE_INFO_MVK = 1000123000,
287     VK_STRUCTURE_TYPE_METAL_SURFACE_CREATE_INFO_EXT = 1000217000,
288     VK_STRUCTURE_TYPE_HEADLESS_SURFACE_CREATE_INFO_EXT = 1000256000,
289     VK_STRUCTURE_TYPE_MAX_ENUM = 0x7FFFFFFF
290 } VkStructureType;
291 
292 typedef enum VkResult
293 {
294     VK_SUCCESS = 0,
295     VK_NOT_READY = 1,
296     VK_TIMEOUT = 2,
297     VK_EVENT_SET = 3,
298     VK_EVENT_RESET = 4,
299     VK_INCOMPLETE = 5,
300     VK_ERROR_OUT_OF_HOST_MEMORY = -1,
301     VK_ERROR_OUT_OF_DEVICE_MEMORY = -2,
302     VK_ERROR_INITIALIZATION_FAILED = -3,
303     VK_ERROR_DEVICE_LOST = -4,
304     VK_ERROR_MEMORY_MAP_FAILED = -5,
305     VK_ERROR_LAYER_NOT_PRESENT = -6,
306     VK_ERROR_EXTENSION_NOT_PRESENT = -7,
307     VK_ERROR_FEATURE_NOT_PRESENT = -8,
308     VK_ERROR_INCOMPATIBLE_DRIVER = -9,
309     VK_ERROR_TOO_MANY_OBJECTS = -10,
310     VK_ERROR_FORMAT_NOT_SUPPORTED = -11,
311     VK_ERROR_SURFACE_LOST_KHR = -1000000000,
312     VK_SUBOPTIMAL_KHR = 1000001003,
313     VK_ERROR_OUT_OF_DATE_KHR = -1000001004,
314     VK_ERROR_INCOMPATIBLE_DISPLAY_KHR = -1000003001,
315     VK_ERROR_NATIVE_WINDOW_IN_USE_KHR = -1000000001,
316     VK_ERROR_VALIDATION_FAILED_EXT = -1000011001,
317     VK_RESULT_MAX_ENUM = 0x7FFFFFFF
318 } VkResult;
319 
320 typedef struct VkAllocationCallbacks VkAllocationCallbacks;
321 
322 typedef struct VkExtensionProperties
323 {
324     char            extensionName[256];
325     uint32_t        specVersion;
326 } VkExtensionProperties;
327 
328 typedef void (APIENTRY * PFN_vkVoidFunction)(void);
329 
330 typedef PFN_vkVoidFunction (APIENTRY * PFN_vkGetInstanceProcAddr)(VkInstance,const char*);
331 typedef VkResult (APIENTRY * PFN_vkEnumerateInstanceExtensionProperties)(const char*,uint32_t*,VkExtensionProperties*);
332 #define vkGetInstanceProcAddr _glfw.vk.GetInstanceProcAddr
333 
334 #include "platform.h"
335 
336 #define GLFW_NATIVE_INCLUDE_NONE
337 #include "../include/GLFW/glfw3native.h"
338 
339 // Checks for whether the library has been initialized
340 #define _GLFW_REQUIRE_INIT()                         \
341     if (!_glfw.initialized)                          \
342     {                                                \
343         _glfwInputError(GLFW_NOT_INITIALIZED, NULL); \
344         return;                                      \
345     }
346 #define _GLFW_REQUIRE_INIT_OR_RETURN(x)              \
347     if (!_glfw.initialized)                          \
348     {                                                \
349         _glfwInputError(GLFW_NOT_INITIALIZED, NULL); \
350         return x;                                    \
351     }
352 
353 // Swaps the provided pointers
354 #define _GLFW_SWAP(type, x, y) \
355     {                          \
356         type t;                \
357         t = x;                 \
358         x = y;                 \
359         y = t;                 \
360     }
361 
362 // Per-thread error structure
363 //
364 struct _GLFWerror
365 {
366     _GLFWerror*     next;
367     int             code;
368     char            description[_GLFW_MESSAGE_SIZE];
369 };
370 
371 // Initialization configuration
372 //
373 // Parameters relating to the initialization of the library
374 //
375 struct _GLFWinitconfig
376 {
377     GLFWbool      hatButtons;
378     int           angleType;
379     int           platformID;
380     PFN_vkGetInstanceProcAddr vulkanLoader;
381     struct {
382         GLFWbool  menubar;
383         GLFWbool  chdir;
384     } ns;
385     struct {
386         GLFWbool  xcbVulkanSurface;
387     } x11;
388     struct {
389         int       libdecorMode;
390     } wl;
391 };
392 
393 // Window configuration
394 //
395 // Parameters relating to the creation of the window but not directly related
396 // to the framebuffer.  This is used to pass window creation parameters from
397 // shared code to the platform API.
398 //
399 struct _GLFWwndconfig
400 {
401     int           xpos;
402     int           ypos;
403     int           width;
404     int           height;
405     const char*   title;
406     GLFWbool      resizable;
407     GLFWbool      visible;
408     GLFWbool      decorated;
409     GLFWbool      focused;
410     GLFWbool      autoIconify;
411     GLFWbool      floating;
412     GLFWbool      maximized;
413     GLFWbool      centerCursor;
414     GLFWbool      focusOnShow;
415     GLFWbool      mousePassthrough;
416     GLFWbool      scaleToMonitor;
417     GLFWbool      scaleFramebuffer;
418     struct {
419         char      frameName[256];
420     } ns;
421     struct {
422         char      className[256];
423         char      instanceName[256];
424     } x11;
425     struct {
426         GLFWbool  keymenu;
427         GLFWbool  showDefault;
428     } win32;
429     struct {
430         char      appId[256];
431     } wl;
432 };
433 
434 // Context configuration
435 //
436 // Parameters relating to the creation of the context but not directly related
437 // to the framebuffer.  This is used to pass context creation parameters from
438 // shared code to the platform API.
439 //
440 struct _GLFWctxconfig
441 {
442     int           client;
443     int           source;
444     int           major;
445     int           minor;
446     GLFWbool      forward;
447     GLFWbool      debug;
448     GLFWbool      noerror;
449     int           profile;
450     int           robustness;
451     int           release;
452     _GLFWwindow*  share;
453     struct {
454         GLFWbool  offline;
455     } nsgl;
456 };
457 
458 // Framebuffer configuration
459 //
460 // This describes buffers and their sizes.  It also contains
461 // a platform-specific ID used to map back to the backend API object.
462 //
463 // It is used to pass framebuffer parameters from shared code to the platform
464 // API and also to enumerate and select available framebuffer configs.
465 //
466 struct _GLFWfbconfig
467 {
468     int         redBits;
469     int         greenBits;
470     int         blueBits;
471     int         alphaBits;
472     int         depthBits;
473     int         stencilBits;
474     int         accumRedBits;
475     int         accumGreenBits;
476     int         accumBlueBits;
477     int         accumAlphaBits;
478     int         auxBuffers;
479     GLFWbool    stereo;
480     int         samples;
481     GLFWbool    sRGB;
482     GLFWbool    doublebuffer;
483     GLFWbool    transparent;
484     uintptr_t   handle;
485 };
486 
487 // Context structure
488 //
489 struct _GLFWcontext
490 {
491     int                 client;
492     int                 source;
493     int                 major, minor, revision;
494     GLFWbool            forward, debug, noerror;
495     int                 profile;
496     int                 robustness;
497     int                 release;
498 
499     PFNGLGETSTRINGIPROC  GetStringi;
500     PFNGLGETINTEGERVPROC GetIntegerv;
501     PFNGLGETSTRINGPROC   GetString;
502 
503     void (*makeCurrent)(_GLFWwindow*);
504     void (*swapBuffers)(_GLFWwindow*);
505     void (*swapInterval)(int);
506     int (*extensionSupported)(const char*);
507     GLFWglproc (*getProcAddress)(const char*);
508     void (*destroy)(_GLFWwindow*);
509 
510     struct {
511         EGLConfig       config;
512         EGLContext      handle;
513         EGLSurface      surface;
514         void*           client;
515     } egl;
516 
517     struct {
518         OSMesaContext   handle;
519         int             width;
520         int             height;
521         void*           buffer;
522     } osmesa;
523 
524     // This is defined in platform.h
525     GLFW_PLATFORM_CONTEXT_STATE
526 };
527 
528 // Window and context structure
529 //
530 struct _GLFWwindow
531 {
532     struct _GLFWwindow* next;
533 
534     // Window settings and state
535     GLFWbool            resizable;
536     GLFWbool            decorated;
537     GLFWbool            autoIconify;
538     GLFWbool            floating;
539     GLFWbool            focusOnShow;
540     GLFWbool            mousePassthrough;
541     GLFWbool            shouldClose;
542     void*               userPointer;
543     GLFWbool            doublebuffer;
544     GLFWvidmode         videoMode;
545     _GLFWmonitor*       monitor;
546     _GLFWcursor*        cursor;
547     char*               title;
548 
549     int                 minwidth, minheight;
550     int                 maxwidth, maxheight;
551     int                 numer, denom;
552 
553     GLFWbool            stickyKeys;
554     GLFWbool            stickyMouseButtons;
555     GLFWbool            lockKeyMods;
556     GLFWbool            disableMouseButtonLimit;
557     int                 cursorMode;
558     char                mouseButtons[GLFW_MOUSE_BUTTON_LAST + 1];
559     char                keys[GLFW_KEY_LAST + 1];
560     // Virtual cursor position when cursor is disabled
561     double              virtualCursorPosX, virtualCursorPosY;
562     GLFWbool            rawMouseMotion;
563 
564     _GLFWcontext        context;
565 
566     struct {
567         GLFWwindowposfun          pos;
568         GLFWwindowsizefun         size;
569         GLFWwindowclosefun        close;
570         GLFWwindowrefreshfun      refresh;
571         GLFWwindowfocusfun        focus;
572         GLFWwindowiconifyfun      iconify;
573         GLFWwindowmaximizefun     maximize;
574         GLFWframebuffersizefun    fbsize;
575         GLFWwindowcontentscalefun scale;
576         GLFWmousebuttonfun        mouseButton;
577         GLFWcursorposfun          cursorPos;
578         GLFWcursorenterfun        cursorEnter;
579         GLFWscrollfun             scroll;
580         GLFWkeyfun                key;
581         GLFWcharfun               character;
582         GLFWcharmodsfun           charmods;
583         GLFWdropfun               drop;
584     } callbacks;
585 
586     // This is defined in platform.h
587     GLFW_PLATFORM_WINDOW_STATE
588 };
589 
590 // Monitor structure
591 //
592 struct _GLFWmonitor
593 {
594     char            name[128];
595     void*           userPointer;
596 
597     // Physical dimensions in millimeters.
598     int             widthMM, heightMM;
599 
600     // The window whose video mode is current on this monitor
601     _GLFWwindow*    window;
602 
603     GLFWvidmode*    modes;
604     int             modeCount;
605     GLFWvidmode     currentMode;
606 
607     GLFWgammaramp   originalRamp;
608     GLFWgammaramp   currentRamp;
609 
610     // This is defined in platform.h
611     GLFW_PLATFORM_MONITOR_STATE
612 };
613 
614 // Cursor structure
615 //
616 struct _GLFWcursor
617 {
618     _GLFWcursor*    next;
619     // This is defined in platform.h
620     GLFW_PLATFORM_CURSOR_STATE
621 };
622 
623 // Gamepad mapping element structure
624 //
625 struct _GLFWmapelement
626 {
627     uint8_t         type;
628     uint8_t         index;
629     int8_t          axisScale;
630     int8_t          axisOffset;
631 };
632 
633 // Gamepad mapping structure
634 //
635 struct _GLFWmapping
636 {
637     char            name[128];
638     char            guid[33];
639     _GLFWmapelement buttons[15];
640     _GLFWmapelement axes[6];
641 };
642 
643 // Joystick structure
644 //
645 struct _GLFWjoystick
646 {
647     GLFWbool        allocated;
648     GLFWbool        connected;
649     float*          axes;
650     int             axisCount;
651     unsigned char*  buttons;
652     int             buttonCount;
653     unsigned char*  hats;
654     int             hatCount;
655     char            name[128];
656     void*           userPointer;
657     char            guid[33];
658     _GLFWmapping*   mapping;
659 
660     // This is defined in platform.h
661     GLFW_PLATFORM_JOYSTICK_STATE
662 };
663 
664 // Thread local storage structure
665 //
666 struct _GLFWtls
667 {
668     // This is defined in platform.h
669     GLFW_PLATFORM_TLS_STATE
670 };
671 
672 // Mutex structure
673 //
674 struct _GLFWmutex
675 {
676     // This is defined in platform.h
677     GLFW_PLATFORM_MUTEX_STATE
678 };
679 
680 // Platform API structure
681 //
682 struct _GLFWplatform
683 {
684     int platformID;
685     // init
686     GLFWbool (*init)(void);
687     void (*terminate)(void);
688     // input
689     void (*getCursorPos)(_GLFWwindow*,double*,double*);
690     void (*setCursorPos)(_GLFWwindow*,double,double);
691     void (*setCursorMode)(_GLFWwindow*,int);
692     void (*setRawMouseMotion)(_GLFWwindow*,GLFWbool);
693     GLFWbool (*rawMouseMotionSupported)(void);
694     GLFWbool (*createCursor)(_GLFWcursor*,const GLFWimage*,int,int);
695     GLFWbool (*createStandardCursor)(_GLFWcursor*,int);
696     void (*destroyCursor)(_GLFWcursor*);
697     void (*setCursor)(_GLFWwindow*,_GLFWcursor*);
698     const char* (*getScancodeName)(int);
699     int (*getKeyScancode)(int);
700     void (*setClipboardString)(const char*);
701     const char* (*getClipboardString)(void);
702     GLFWbool (*initJoysticks)(void);
703     void (*terminateJoysticks)(void);
704     GLFWbool (*pollJoystick)(_GLFWjoystick*,int);
705     const char* (*getMappingName)(void);
706     void (*updateGamepadGUID)(char*);
707     // monitor
708     void (*freeMonitor)(_GLFWmonitor*);
709     void (*getMonitorPos)(_GLFWmonitor*,int*,int*);
710     void (*getMonitorContentScale)(_GLFWmonitor*,float*,float*);
711     void (*getMonitorWorkarea)(_GLFWmonitor*,int*,int*,int*,int*);
712     GLFWvidmode* (*getVideoModes)(_GLFWmonitor*,int*);
713     GLFWbool (*getVideoMode)(_GLFWmonitor*,GLFWvidmode*);
714     GLFWbool (*getGammaRamp)(_GLFWmonitor*,GLFWgammaramp*);
715     void (*setGammaRamp)(_GLFWmonitor*,const GLFWgammaramp*);
716     // window
717     GLFWbool (*createWindow)(_GLFWwindow*,const _GLFWwndconfig*,const _GLFWctxconfig*,const _GLFWfbconfig*);
718     void (*destroyWindow)(_GLFWwindow*);
719     void (*setWindowTitle)(_GLFWwindow*,const char*);
720     void (*setWindowIcon)(_GLFWwindow*,int,const GLFWimage*);
721     void (*getWindowPos)(_GLFWwindow*,int*,int*);
722     void (*setWindowPos)(_GLFWwindow*,int,int);
723     void (*getWindowSize)(_GLFWwindow*,int*,int*);
724     void (*setWindowSize)(_GLFWwindow*,int,int);
725     void (*setWindowSizeLimits)(_GLFWwindow*,int,int,int,int);
726     void (*setWindowAspectRatio)(_GLFWwindow*,int,int);
727     void (*getFramebufferSize)(_GLFWwindow*,int*,int*);
728     void (*getWindowFrameSize)(_GLFWwindow*,int*,int*,int*,int*);
729     void (*getWindowContentScale)(_GLFWwindow*,float*,float*);
730     void (*iconifyWindow)(_GLFWwindow*);
731     void (*restoreWindow)(_GLFWwindow*);
732     void (*maximizeWindow)(_GLFWwindow*);
733     void (*showWindow)(_GLFWwindow*);
734     void (*hideWindow)(_GLFWwindow*);
735     void (*requestWindowAttention)(_GLFWwindow*);
736     void (*focusWindow)(_GLFWwindow*);
737     void (*setWindowMonitor)(_GLFWwindow*,_GLFWmonitor*,int,int,int,int,int);
738     GLFWbool (*windowFocused)(_GLFWwindow*);
739     GLFWbool (*windowIconified)(_GLFWwindow*);
740     GLFWbool (*windowVisible)(_GLFWwindow*);
741     GLFWbool (*windowMaximized)(_GLFWwindow*);
742     GLFWbool (*windowHovered)(_GLFWwindow*);
743     GLFWbool (*framebufferTransparent)(_GLFWwindow*);
744     float (*getWindowOpacity)(_GLFWwindow*);
745     void (*setWindowResizable)(_GLFWwindow*,GLFWbool);
746     void (*setWindowDecorated)(_GLFWwindow*,GLFWbool);
747     void (*setWindowFloating)(_GLFWwindow*,GLFWbool);
748     void (*setWindowOpacity)(_GLFWwindow*,float);
749     void (*setWindowMousePassthrough)(_GLFWwindow*,GLFWbool);
750     void (*pollEvents)(void);
751     void (*waitEvents)(void);
752     void (*waitEventsTimeout)(double);
753     void (*postEmptyEvent)(void);
754     // EGL
755     EGLenum (*getEGLPlatform)(EGLint**);
756     EGLNativeDisplayType (*getEGLNativeDisplay)(void);
757     EGLNativeWindowType (*getEGLNativeWindow)(_GLFWwindow*);
758     // vulkan
759     void (*getRequiredInstanceExtensions)(char**);
760     GLFWbool (*getPhysicalDevicePresentationSupport)(VkInstance,VkPhysicalDevice,uint32_t);
761     VkResult (*createWindowSurface)(VkInstance,_GLFWwindow*,const VkAllocationCallbacks*,VkSurfaceKHR*);
762 };
763 
764 // Library global data
765 //
766 struct _GLFWlibrary
767 {
768     GLFWbool            initialized;
769     GLFWallocator       allocator;
770 
771     _GLFWplatform       platform;
772 
773     struct {
774         _GLFWinitconfig init;
775         _GLFWfbconfig   framebuffer;
776         _GLFWwndconfig  window;
777         _GLFWctxconfig  context;
778         int             refreshRate;
779     } hints;
780 
781     _GLFWerror*         errorListHead;
782     _GLFWcursor*        cursorListHead;
783     _GLFWwindow*        windowListHead;
784 
785     _GLFWmonitor**      monitors;
786     int                 monitorCount;
787 
788     GLFWbool            joysticksInitialized;
789     _GLFWjoystick       joysticks[GLFW_JOYSTICK_LAST + 1];
790     _GLFWmapping*       mappings;
791     int                 mappingCount;
792 
793     _GLFWtls            errorSlot;
794     _GLFWtls            contextSlot;
795     _GLFWmutex          errorLock;
796 
797     struct {
798         uint64_t        offset;
799         // This is defined in platform.h
800         GLFW_PLATFORM_LIBRARY_TIMER_STATE
801     } timer;
802 
803     struct {
804         EGLenum         platform;
805         EGLDisplay      display;
806         EGLint          major, minor;
807         GLFWbool        prefix;
808 
809         GLFWbool        KHR_create_context;
810         GLFWbool        KHR_create_context_no_error;
811         GLFWbool        KHR_gl_colorspace;
812         GLFWbool        KHR_get_all_proc_addresses;
813         GLFWbool        KHR_context_flush_control;
814         GLFWbool        EXT_client_extensions;
815         GLFWbool        EXT_platform_base;
816         GLFWbool        EXT_platform_x11;
817         GLFWbool        EXT_platform_wayland;
818         GLFWbool        EXT_present_opaque;
819         GLFWbool        ANGLE_platform_angle;
820         GLFWbool        ANGLE_platform_angle_opengl;
821         GLFWbool        ANGLE_platform_angle_d3d;
822         GLFWbool        ANGLE_platform_angle_vulkan;
823         GLFWbool        ANGLE_platform_angle_metal;
824         GLFWbool        MESA_platform_surfaceless;
825 
826         void*           handle;
827 
828         PFN_eglGetConfigAttrib      GetConfigAttrib;
829         PFN_eglGetConfigs           GetConfigs;
830         PFN_eglGetDisplay           GetDisplay;
831         PFN_eglGetError             GetError;
832         PFN_eglInitialize           Initialize;
833         PFN_eglTerminate            Terminate;
834         PFN_eglBindAPI              BindAPI;
835         PFN_eglCreateContext        CreateContext;
836         PFN_eglDestroySurface       DestroySurface;
837         PFN_eglDestroyContext       DestroyContext;
838         PFN_eglCreateWindowSurface  CreateWindowSurface;
839         PFN_eglCreatePbufferSurface CreatePbufferSurface;
840         PFN_eglMakeCurrent          MakeCurrent;
841         PFN_eglSwapBuffers          SwapBuffers;
842         PFN_eglSwapInterval         SwapInterval;
843         PFN_eglQueryString          QueryString;
844         PFN_eglGetProcAddress       GetProcAddress;
845 
846         PFNEGLGETPLATFORMDISPLAYEXTPROC GetPlatformDisplayEXT;
847         PFNEGLCREATEPLATFORMWINDOWSURFACEEXTPROC CreatePlatformWindowSurfaceEXT;
848     } egl;
849 
850     struct {
851         void*           handle;
852 
853         PFN_OSMesaCreateContextExt      CreateContextExt;
854         PFN_OSMesaCreateContextAttribs  CreateContextAttribs;
855         PFN_OSMesaDestroyContext        DestroyContext;
856         PFN_OSMesaMakeCurrent           MakeCurrent;
857         PFN_OSMesaGetColorBuffer        GetColorBuffer;
858         PFN_OSMesaGetDepthBuffer        GetDepthBuffer;
859         PFN_OSMesaGetProcAddress        GetProcAddress;
860 
861     } osmesa;
862 
863     struct {
864         GLFWbool        available;
865         void*           handle;
866         char*           extensions[2];
867         PFN_vkGetInstanceProcAddr GetInstanceProcAddr;
868         GLFWbool        KHR_surface;
869         GLFWbool        KHR_win32_surface;
870         GLFWbool        MVK_macos_surface;
871         GLFWbool        EXT_metal_surface;
872         GLFWbool        KHR_xlib_surface;
873         GLFWbool        KHR_xcb_surface;
874         GLFWbool        KHR_wayland_surface;
875         GLFWbool        EXT_headless_surface;
876     } vk;
877 
878     struct {
879         GLFWmonitorfun  monitor;
880         GLFWjoystickfun joystick;
881     } callbacks;
882 
883     // These are defined in platform.h
884     GLFW_PLATFORM_LIBRARY_WINDOW_STATE
885     GLFW_PLATFORM_LIBRARY_CONTEXT_STATE
886     GLFW_PLATFORM_LIBRARY_JOYSTICK_STATE
887 };
888 
889 // Global state shared between compilation units of GLFW
890 //
891 extern _GLFWlibrary _glfw;
892 
893 
894 //////////////////////////////////////////////////////////////////////////
895 //////                       GLFW platform API                      //////
896 //////////////////////////////////////////////////////////////////////////
897 
898 void _glfwPlatformInitTimer(void);
899 uint64_t _glfwPlatformGetTimerValue(void);
900 uint64_t _glfwPlatformGetTimerFrequency(void);
901 
902 GLFWbool _glfwPlatformCreateTls(_GLFWtls* tls);
903 void _glfwPlatformDestroyTls(_GLFWtls* tls);
904 void* _glfwPlatformGetTls(_GLFWtls* tls);
905 void _glfwPlatformSetTls(_GLFWtls* tls, void* value);
906 
907 GLFWbool _glfwPlatformCreateMutex(_GLFWmutex* mutex);
908 void _glfwPlatformDestroyMutex(_GLFWmutex* mutex);
909 void _glfwPlatformLockMutex(_GLFWmutex* mutex);
910 void _glfwPlatformUnlockMutex(_GLFWmutex* mutex);
911 
912 void* _glfwPlatformLoadModule(const char* path);
913 void _glfwPlatformFreeModule(void* module);
914 GLFWproc _glfwPlatformGetModuleSymbol(void* module, const char* name);
915 
916 
917 //////////////////////////////////////////////////////////////////////////
918 //////                         GLFW event API                       //////
919 //////////////////////////////////////////////////////////////////////////
920 
921 void _glfwInputWindowFocus(_GLFWwindow* window, GLFWbool focused);
922 void _glfwInputWindowPos(_GLFWwindow* window, int xpos, int ypos);
923 void _glfwInputWindowSize(_GLFWwindow* window, int width, int height);
924 void _glfwInputFramebufferSize(_GLFWwindow* window, int width, int height);
925 void _glfwInputWindowContentScale(_GLFWwindow* window,
926                                   float xscale, float yscale);
927 void _glfwInputWindowIconify(_GLFWwindow* window, GLFWbool iconified);
928 void _glfwInputWindowMaximize(_GLFWwindow* window, GLFWbool maximized);
929 void _glfwInputWindowDamage(_GLFWwindow* window);
930 void _glfwInputWindowCloseRequest(_GLFWwindow* window);
931 void _glfwInputWindowMonitor(_GLFWwindow* window, _GLFWmonitor* monitor);
932 
933 void _glfwInputKey(_GLFWwindow* window,
934                    int key, int scancode, int action, int mods);
935 void _glfwInputChar(_GLFWwindow* window,
936                     uint32_t codepoint, int mods, GLFWbool plain);
937 void _glfwInputScroll(_GLFWwindow* window, double xoffset, double yoffset);
938 void _glfwInputMouseClick(_GLFWwindow* window, int button, int action, int mods);
939 void _glfwInputCursorPos(_GLFWwindow* window, double xpos, double ypos);
940 void _glfwInputCursorEnter(_GLFWwindow* window, GLFWbool entered);
941 void _glfwInputDrop(_GLFWwindow* window, int count, const char** names);
942 void _glfwInputJoystick(_GLFWjoystick* js, int event);
943 void _glfwInputJoystickAxis(_GLFWjoystick* js, int axis, float value);
944 void _glfwInputJoystickButton(_GLFWjoystick* js, int button, char value);
945 void _glfwInputJoystickHat(_GLFWjoystick* js, int hat, char value);
946 
947 void _glfwInputMonitor(_GLFWmonitor* monitor, int action, int placement);
948 void _glfwInputMonitorWindow(_GLFWmonitor* monitor, _GLFWwindow* window);
949 
950 #if defined(__GNUC__)
951 void _glfwInputError(int code, const char* format, ...)
952     __attribute__((format(printf, 2, 3)));
953 #else
954 void _glfwInputError(int code, const char* format, ...);
955 #endif
956 
957 
958 //////////////////////////////////////////////////////////////////////////
959 //////                       GLFW internal API                      //////
960 //////////////////////////////////////////////////////////////////////////
961 
962 GLFWbool _glfwSelectPlatform(int platformID, _GLFWplatform* platform);
963 
964 GLFWbool _glfwStringInExtensionString(const char* string, const char* extensions);
965 const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
966                                          const _GLFWfbconfig* alternatives,
967                                          unsigned int count);
968 GLFWbool _glfwRefreshContextAttribs(_GLFWwindow* window,
969                                     const _GLFWctxconfig* ctxconfig);
970 GLFWbool _glfwIsValidContextConfig(const _GLFWctxconfig* ctxconfig);
971 
972 const GLFWvidmode* _glfwChooseVideoMode(_GLFWmonitor* monitor,
973                                         const GLFWvidmode* desired);
974 int _glfwCompareVideoModes(const GLFWvidmode* first, const GLFWvidmode* second);
975 _GLFWmonitor* _glfwAllocMonitor(const char* name, int widthMM, int heightMM);
976 void _glfwFreeMonitor(_GLFWmonitor* monitor);
977 void _glfwAllocGammaArrays(GLFWgammaramp* ramp, unsigned int size);
978 void _glfwFreeGammaArrays(GLFWgammaramp* ramp);
979 void _glfwSplitBPP(int bpp, int* red, int* green, int* blue);
980 
981 void _glfwInitGamepadMappings(void);
982 _GLFWjoystick* _glfwAllocJoystick(const char* name,
983                                   const char* guid,
984                                   int axisCount,
985                                   int buttonCount,
986                                   int hatCount);
987 void _glfwFreeJoystick(_GLFWjoystick* js);
988 void _glfwCenterCursorInContentArea(_GLFWwindow* window);
989 
990 GLFWbool _glfwInitEGL(void);
991 void _glfwTerminateEGL(void);
992 GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
993                                const _GLFWctxconfig* ctxconfig,
994                                const _GLFWfbconfig* fbconfig);
995 #if defined(_GLFW_X11)
996 GLFWbool _glfwChooseVisualEGL(const _GLFWwndconfig* wndconfig,
997                               const _GLFWctxconfig* ctxconfig,
998                               const _GLFWfbconfig* fbconfig,
999                               Visual** visual, int* depth);
1000 #endif /*_GLFW_X11*/
1001 
1002 GLFWbool _glfwInitOSMesa(void);
1003 void _glfwTerminateOSMesa(void);
1004 GLFWbool _glfwCreateContextOSMesa(_GLFWwindow* window,
1005                                   const _GLFWctxconfig* ctxconfig,
1006                                   const _GLFWfbconfig* fbconfig);
1007 
1008 GLFWbool _glfwInitVulkan(int mode);
1009 void _glfwTerminateVulkan(void);
1010 const char* _glfwGetVulkanResultString(VkResult result);
1011 
1012 size_t _glfwEncodeUTF8(char* s, uint32_t codepoint);
1013 char** _glfwParseUriList(char* text, int* count);
1014 
1015 char* _glfw_strdup(const char* source);
1016 int _glfw_min(int a, int b);
1017 int _glfw_max(int a, int b);
1018 
1019 void* _glfw_calloc(size_t count, size_t size);
1020 void* _glfw_realloc(void* pointer, size_t size);
1021 void _glfw_free(void* pointer);
1022 
1023