//----------------------------------------------------------------------------- // About imgui_impl_opengl3_loader.h: // // We embed our own OpenGL loader to not require user to provide their own or to have to use ours, // which proved to be endless problems for users. // Our loader is custom-generated, based on gl3w but automatically filtered to only include // enums/functions that we use in our imgui_impl_opengl3.cpp source file in order to be small. // // YOU SHOULD NOT NEED TO INCLUDE/USE THIS DIRECTLY. THIS IS USED BY imgui_impl_opengl3.cpp ONLY. // THE REST OF YOUR APP SHOULD USE A DIFFERENT GL LOADER: ANY GL LOADER OF YOUR CHOICE. // // IF YOU GET BUILD ERRORS IN THIS FILE (commonly macro redefinitions or function redefinitions): // IT LIKELY MEANS THAT YOU ARE BUILDING 'imgui_impl_opengl3.cpp' OR INCUDING 'imgui_impl_opengl3_loader.h' // IN THE SAME COMPILATION UNIT AS ONE OF YOUR FILE WHICH IS USING A THIRD-PARTY OPENGL LOADER. // (e.g. COULD HAPPEN IF YOU ARE DOING A UNITY/JUMBO BUILD, OR INCLUDING .CPP FILES FROM OTHERS) // YOU SHOULD NOT BUILD BOTH IN THE SAME COMPILATION UNIT. // BUT IF YOU REALLY WANT TO, you can '#define IMGUI_IMPL_OPENGL_LOADER_CUSTOM' and imgui_impl_opengl3.cpp // WILL NOT BE USING OUR LOADER, AND INSTEAD EXPECT ANOTHER/YOUR LOADER TO BE AVAILABLE IN THE COMPILATION UNIT. // // Regenerate with: // python gl3w_gen.py --output ../imgui/backends/imgui_impl_opengl3_loader.h --ref ../imgui/backends/imgui_impl_opengl3.cpp ./extra_symbols.txt // // More info: // https://github.com/dearimgui/gl3w_stripped // https://github.com/ocornut/imgui/issues/4445 //----------------------------------------------------------------------------- /* * This file was generated with gl3w_gen.py, part of imgl3w * (hosted at https://github.com/dearimgui/gl3w_stripped) * * 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 __gl3w_h_ #define __gl3w_h_ // Adapted from KHR/khrplatform.h to avoid including entire file. #ifndef __khrplatform_h_ typedef float khronos_float_t; typedef signed char khronos_int8_t; typedef unsigned char khronos_uint8_t; typedef signed short int khronos_int16_t; typedef unsigned short int khronos_uint16_t; #ifdef _WIN64 typedef signed long long int khronos_intptr_t; typedef signed long long int khronos_ssize_t; #else typedef signed long int khronos_intptr_t; typedef signed long int khronos_ssize_t; #endif #if defined(_MSC_VER) && !defined(__clang__) typedef signed __int64 khronos_int64_t; typedef unsigned __int64 khronos_uint64_t; #elif (defined(__clang__) || defined(__GNUC__)) && (__cplusplus < 201100) #include <stdint.h> typedef int64_t khronos_int64_t; typedef uint64_t khronos_uint64_t; #else typedef signed long long khronos_int64_t; typedef unsigned long long khronos_uint64_t; #endif #endif // __khrplatform_h_ #ifndef __gl_glcorearb_h_ #define __gl_glcorearb_h_ 1 #ifdef __cplusplus extern "C" { #endif /* ** Copyright 2013-2020 The Khronos Group Inc. ** SPDX-License-Identifier: MIT ** ** This header is generated from the Khronos OpenGL / OpenGL ES XML ** API Registry. The current version of the Registry, generator scripts ** used to make the header, and the header can be found at ** https://github.com/KhronosGroup/OpenGL-Registry */ #if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__) #ifndef WIN32_LEAN_AND_MEAN #define WIN32_LEAN_AND_MEAN 1 #endif #include <windows.h> #endif #ifndef APIENTRY #define APIENTRY #endif #ifndef APIENTRYP #define APIENTRYP APIENTRY * #endif #ifndef GLAPI #define GLAPI extern #endif /* glcorearb.h is for use with OpenGL core profile implementations. ** It should should be placed in the same directory as gl.h and ** included as <GL/glcorearb.h>. ** ** glcorearb.h includes only APIs in the latest OpenGL core profile ** implementation together with APIs in newer ARB extensions which ** can be supported by the core profile. It does not, and never will ** include functionality removed from the core profile, such as ** fixed-function vertex and fragment processing. ** ** Do not #include both <GL/glcorearb.h> and either of <GL/gl.h> or ** <GL/glext.h> in the same source file. */ /* Generated C header for: * API: gl * Profile: core * Versions considered: .* * Versions emitted: .* * Default extensions included: glcore * Additional extensions included: _nomatch_^ * Extensions removed: _nomatch_^ */ #ifndef GL_VERSION_1_0 typedef void GLvoid; typedef unsigned int GLenum; typedef khronos_float_t GLfloat; typedef int GLint; typedef int GLsizei; typedef unsigned int GLbitfield; typedef double GLdouble; typedef unsigned int GLuint; typedef unsigned char GLboolean; typedef khronos_uint8_t GLubyte; #define GL_COLOR_BUFFER_BIT 0x00004000 #define GL_FALSE 0 #define GL_TRUE 1 #define GL_TRIANGLES 0x0004 #define GL_ONE 1 #define GL_SRC_ALPHA 0x0302 #define GL_ONE_MINUS_SRC_ALPHA 0x0303 #define GL_FRONT_AND_BACK 0x0408 #define GL_POLYGON_MODE 0x0B40 #define GL_CULL_FACE 0x0B44 #define GL_DEPTH_TEST 0x0B71 #define GL_STENCIL_TEST 0x0B90 #define GL_VIEWPORT 0x0BA2 #define GL_BLEND 0x0BE2 #define GL_SCISSOR_BOX 0x0C10 #define GL_SCISSOR_TEST 0x0C11 #define GL_UNPACK_ROW_LENGTH 0x0CF2 #define GL_PACK_ALIGNMENT 0x0D05 #define GL_TEXTURE_2D 0x0DE1 #define GL_UNSIGNED_BYTE 0x1401 #define GL_UNSIGNED_SHORT 0x1403 #define GL_UNSIGNED_INT 0x1405 #define GL_FLOAT 0x1406 #define GL_RGBA 0x1908 #define GL_FILL 0x1B02 #define GL_VENDOR 0x1F00 #define GL_RENDERER 0x1F01 #define GL_VERSION 0x1F02 #define GL_EXTENSIONS 0x1F03 #define GL_LINEAR 0x2601 #define GL_TEXTURE_MAG_FILTER 0x2800 #define GL_TEXTURE_MIN_FILTER 0x2801 typedef void (APIENTRYP PFNGLPOLYGONMODEPROC) (GLenum face, GLenum mode); typedef void (APIENTRYP PFNGLSCISSORPROC) (GLint x, GLint y, GLsizei width, GLsizei height); typedef void (APIENTRYP PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param); typedef void (APIENTRYP PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); typedef void (APIENTRYP PFNGLCLEARPROC) (GLbitfield mask); typedef void (APIENTRYP PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); typedef void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap); typedef void (APIENTRYP PFNGLENABLEPROC) (GLenum cap); typedef void (APIENTRYP PFNGLFLUSHPROC) (void); typedef void (APIENTRYP PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param); typedef void (APIENTRYP PFNGLREADPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels); typedef GLenum (APIENTRYP PFNGLGETERRORPROC) (void); typedef void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *data); typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGPROC) (GLenum name); typedef GLboolean (APIENTRYP PFNGLISENABLEDPROC) (GLenum cap); typedef void (APIENTRYP PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height); #ifdef GL_GLEXT_PROTOTYPES GLAPI void APIENTRY glPolygonMode (GLenum face, GLenum mode); GLAPI void APIENTRY glScissor (GLint x, GLint y, GLsizei width, GLsizei height); GLAPI void APIENTRY glTexParameteri (GLenum target, GLenum pname, GLint param); GLAPI void APIENTRY glTexImage2D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); GLAPI void APIENTRY glClear (GLbitfield mask); GLAPI void APIENTRY glClearColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); GLAPI void APIENTRY glDisable (GLenum cap); GLAPI void APIENTRY glEnable (GLenum cap); GLAPI void APIENTRY glFlush (void); GLAPI void APIENTRY glPixelStorei (GLenum pname, GLint param); GLAPI void APIENTRY glReadPixels (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels); GLAPI GLenum APIENTRY glGetError (void); GLAPI void APIENTRY glGetIntegerv (GLenum pname, GLint *data); GLAPI const GLubyte *APIENTRY glGetString (GLenum name); GLAPI GLboolean APIENTRY glIsEnabled (GLenum cap); GLAPI void APIENTRY glViewport (GLint x, GLint y, GLsizei width, GLsizei height); #endif #endif /* GL_VERSION_1_0 */ #ifndef GL_VERSION_1_1 typedef khronos_float_t GLclampf; typedef double GLclampd; #define GL_TEXTURE_BINDING_2D 0x8069 typedef void (APIENTRYP PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices); typedef void (APIENTRYP PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture); typedef void (APIENTRYP PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures); typedef void (APIENTRYP PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures); #ifdef GL_GLEXT_PROTOTYPES GLAPI void APIENTRY glDrawElements (GLenum mode, GLsizei count, GLenum type, const void *indices); GLAPI void APIENTRY glBindTexture (GLenum target, GLuint texture); GLAPI void APIENTRY glDeleteTextures (GLsizei n, const GLuint *textures); GLAPI void APIENTRY glGenTextures (GLsizei n, GLuint *textures); #endif #endif /* GL_VERSION_1_1 */ #ifndef GL_VERSION_1_3 #define GL_TEXTURE0 0x84C0 #define GL_ACTIVE_TEXTURE 0x84E0 typedef void (APIENTRYP PFNGLACTIVETEXTUREPROC) (GLenum texture); #ifdef GL_GLEXT_PROTOTYPES GLAPI void APIENTRY glActiveTexture (GLenum texture); #endif #endif /* GL_VERSION_1_3 */ #ifndef GL_VERSION_1_4 #define GL_BLEND_DST_RGB 0x80C8 #define GL_BLEND_SRC_RGB 0x80C9 #define GL_BLEND_DST_ALPHA 0x80CA #define GL_BLEND_SRC_ALPHA 0x80CB #define GL_FUNC_ADD 0x8006 typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEPROC) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha); typedef void (APIENTRYP PFNGLBLENDEQUATIONPROC) (GLenum mode); #ifdef GL_GLEXT_PROTOTYPES GLAPI void APIENTRY glBlendFuncSeparate (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha); GLAPI void APIENTRY glBlendEquation (GLenum mode); #endif #endif /* GL_VERSION_1_4 */ #ifndef GL_VERSION_1_5 typedef khronos_ssize_t GLsizeiptr; typedef khronos_intptr_t GLintptr; #define GL_ARRAY_BUFFER 0x8892 #define GL_ELEMENT_ARRAY_BUFFER 0x8893 #define GL_ARRAY_BUFFER_BINDING 0x8894 #define GL_ELEMENT_ARRAY_BUFFER_BINDING 0x8895 #define GL_STREAM_DRAW 0x88E0 typedef void (APIENTRYP PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer); typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers); typedef void (APIENTRYP PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers); typedef void (APIENTRYP PFNGLBUFFERDATAPROC) (GLenum target, GLsizeiptr size, const void *data, GLenum usage); typedef void (APIENTRYP PFNGLBUFFERSUBDATAPROC) (GLenum target, GLintptr offset, GLsizeiptr size, const void *data); #ifdef GL_GLEXT_PROTOTYPES GLAPI void APIENTRY glBindBuffer (GLenum target, GLuint buffer); GLAPI void APIENTRY glDeleteBuffers (GLsizei n, const GLuint *buffers); GLAPI void APIENTRY glGenBuffers (GLsizei n, GLuint *buffers); GLAPI void APIENTRY glBufferData (GLenum target, GLsizeiptr size, const void *data, GLenum usage); GLAPI void APIENTRY glBufferSubData (GLenum target, GLintptr offset, GLsizeiptr size, const void *data); #endif #endif /* GL_VERSION_1_5 */ #ifndef GL_VERSION_2_0 typedef char GLchar; typedef khronos_int16_t GLshort; typedef khronos_int8_t GLbyte; typedef khronos_uint16_t GLushort; #define GL_BLEND_EQUATION_RGB 0x8009 #define GL_VERTEX_ATTRIB_ARRAY_ENABLED 0x8622 #define GL_VERTEX_ATTRIB_ARRAY_SIZE 0x8623 #define GL_VERTEX_ATTRIB_ARRAY_STRIDE 0x8624 #define GL_VERTEX_ATTRIB_ARRAY_TYPE 0x8625 #define GL_VERTEX_ATTRIB_ARRAY_POINTER 0x8645 #define GL_BLEND_EQUATION_ALPHA 0x883D #define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A #define GL_FRAGMENT_SHADER 0x8B30 #define GL_VERTEX_SHADER 0x8B31 #define GL_COMPILE_STATUS 0x8B81 #define GL_LINK_STATUS 0x8B82 #define GL_INFO_LOG_LENGTH 0x8B84 #define GL_CURRENT_PROGRAM 0x8B8D #define GL_UPPER_LEFT 0x8CA2 typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEPROC) (GLenum modeRGB, GLenum modeAlpha); typedef void (APIENTRYP PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader); typedef void (APIENTRYP PFNGLCOMPILESHADERPROC) (GLuint shader); typedef GLuint (APIENTRYP PFNGLCREATEPROGRAMPROC) (void); typedef GLuint (APIENTRYP PFNGLCREATESHADERPROC) (GLenum type); typedef void (APIENTRYP PFNGLDELETEPROGRAMPROC) (GLuint program); typedef void (APIENTRYP PFNGLDELETESHADERPROC) (GLuint shader); typedef void (APIENTRYP PFNGLDETACHSHADERPROC) (GLuint program, GLuint shader); typedef void (APIENTRYP PFNGLDISABLEVERTEXATTRIBARRAYPROC) (GLuint index); typedef void (APIENTRYP PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index); typedef GLint (APIENTRYP PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const GLchar *name); typedef void (APIENTRYP PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params); typedef void (APIENTRYP PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog); typedef void (APIENTRYP PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params); typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog); typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar *name); typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIVPROC) (GLuint index, GLenum pname, GLint *params); typedef void (APIENTRYP PFNGLGETVERTEXATTRIBPOINTERVPROC) (GLuint index, GLenum pname, void **pointer); typedef void (APIENTRYP PFNGLLINKPROGRAMPROC) (GLuint program); typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length); typedef void (APIENTRYP PFNGLUSEPROGRAMPROC) (GLuint program); typedef void (APIENTRYP PFNGLUNIFORM1IPROC) (GLint location, GLint v0); typedef void (APIENTRYP PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); typedef void (APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer); #ifdef GL_GLEXT_PROTOTYPES GLAPI void APIENTRY glBlendEquationSeparate (GLenum modeRGB, GLenum modeAlpha); GLAPI void APIENTRY glAttachShader (GLuint program, GLuint shader); GLAPI void APIENTRY glCompileShader (GLuint shader); GLAPI GLuint APIENTRY glCreateProgram (void); GLAPI GLuint APIENTRY glCreateShader (GLenum type); GLAPI void APIENTRY glDeleteProgram (GLuint program); GLAPI void APIENTRY glDeleteShader (GLuint shader); GLAPI void APIENTRY glDetachShader (GLuint program, GLuint shader); GLAPI void APIENTRY glDisableVertexAttribArray (GLuint index); GLAPI void APIENTRY glEnableVertexAttribArray (GLuint index); GLAPI GLint APIENTRY glGetAttribLocation (GLuint program, const GLchar *name); GLAPI void APIENTRY glGetProgramiv (GLuint program, GLenum pname, GLint *params); GLAPI void APIENTRY glGetProgramInfoLog (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog); GLAPI void APIENTRY glGetShaderiv (GLuint shader, GLenum pname, GLint *params); GLAPI void APIENTRY glGetShaderInfoLog (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog); GLAPI GLint APIENTRY glGetUniformLocation (GLuint program, const GLchar *name); GLAPI void APIENTRY glGetVertexAttribiv (GLuint index, GLenum pname, GLint *params); GLAPI void APIENTRY glGetVertexAttribPointerv (GLuint index, GLenum pname, void **pointer); GLAPI void APIENTRY glLinkProgram (GLuint program); GLAPI void APIENTRY glShaderSource (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length); GLAPI void APIENTRY glUseProgram (GLuint program); GLAPI void APIENTRY glUniform1i (GLint location, GLint v0); GLAPI void APIENTRY glUniformMatrix4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); GLAPI void APIENTRY glVertexAttribPointer (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer); #endif #endif /* GL_VERSION_2_0 */ #ifndef GL_VERSION_3_0 typedef khronos_uint16_t GLhalf; #define GL_MAJOR_VERSION 0x821B #define GL_MINOR_VERSION 0x821C #define GL_NUM_EXTENSIONS 0x821D #define GL_FRAMEBUFFER_SRGB 0x8DB9 #define GL_VERTEX_ARRAY_BINDING 0x85B5 typedef void (APIENTRYP PFNGLGETBOOLEANI_VPROC) (GLenum target, GLuint index, GLboolean *data); typedef void (APIENTRYP PFNGLGETINTEGERI_VPROC) (GLenum target, GLuint index, GLint *data); typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGIPROC) (GLenum name, GLuint index); typedef void (APIENTRYP PFNGLBINDVERTEXARRAYPROC) (GLuint array); typedef void (APIENTRYP PFNGLDELETEVERTEXARRAYSPROC) (GLsizei n, const GLuint *arrays); typedef void (APIENTRYP PFNGLGENVERTEXARRAYSPROC) (GLsizei n, GLuint *arrays); #ifdef GL_GLEXT_PROTOTYPES GLAPI const GLubyte *APIENTRY glGetStringi (GLenum name, GLuint index); GLAPI void APIENTRY glBindVertexArray (GLuint array); GLAPI void APIENTRY glDeleteVertexArrays (GLsizei n, const GLuint *arrays); GLAPI void APIENTRY glGenVertexArrays (GLsizei n, GLuint *arrays); #endif #endif /* GL_VERSION_3_0 */ #ifndef GL_VERSION_3_1 #define GL_VERSION_3_1 1 #define GL_PRIMITIVE_RESTART 0x8F9D #endif /* GL_VERSION_3_1 */ #ifndef GL_VERSION_3_2 #define GL_VERSION_3_2 1 typedef struct __GLsync *GLsync; typedef khronos_uint64_t GLuint64; typedef khronos_int64_t GLint64; typedef void (APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex); typedef void (APIENTRYP PFNGLGETINTEGER64I_VPROC) (GLenum target, GLuint index, GLint64 *data); #ifdef GL_GLEXT_PROTOTYPES GLAPI void APIENTRY glDrawElementsBaseVertex (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex); #endif #endif /* GL_VERSION_3_2 */ #ifndef GL_VERSION_3_3 #define GL_VERSION_3_3 1 #define GL_SAMPLER_BINDING 0x8919 typedef void (APIENTRYP PFNGLBINDSAMPLERPROC) (GLuint unit, GLuint sampler); #ifdef GL_GLEXT_PROTOTYPES GLAPI void APIENTRY glBindSampler (GLuint unit, GLuint sampler); #endif #endif /* GL_VERSION_3_3 */ #ifndef GL_VERSION_4_1 typedef void (APIENTRYP PFNGLGETFLOATI_VPROC) (GLenum target, GLuint index, GLfloat *data); typedef void (APIENTRYP PFNGLGETDOUBLEI_VPROC) (GLenum target, GLuint index, GLdouble *data); #endif /* GL_VERSION_4_1 */ #ifndef GL_VERSION_4_3 typedef void (APIENTRY *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); #endif /* GL_VERSION_4_3 */ #ifndef GL_VERSION_4_5 #define GL_CLIP_ORIGIN 0x935C typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint *param); typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI64_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint64 *param); #endif /* GL_VERSION_4_5 */ #ifndef GL_ARB_bindless_texture typedef khronos_uint64_t GLuint64EXT; #endif /* GL_ARB_bindless_texture */ #ifndef GL_ARB_cl_event struct _cl_context; struct _cl_event; #endif /* GL_ARB_cl_event */ #ifndef GL_ARB_clip_control #define GL_ARB_clip_control 1 #endif /* GL_ARB_clip_control */ #ifndef GL_ARB_debug_output typedef void (APIENTRY *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); #endif /* GL_ARB_debug_output */ #ifndef GL_EXT_EGL_image_storage typedef void *GLeglImageOES; #endif /* GL_EXT_EGL_image_storage */ #ifndef GL_EXT_direct_state_access typedef void (APIENTRYP PFNGLGETFLOATI_VEXTPROC) (GLenum pname, GLuint index, GLfloat *params); typedef void (APIENTRYP PFNGLGETDOUBLEI_VEXTPROC) (GLenum pname, GLuint index, GLdouble *params); typedef void (APIENTRYP PFNGLGETPOINTERI_VEXTPROC) (GLenum pname, GLuint index, void **params); typedef void (APIENTRYP PFNGLGETVERTEXARRAYINTEGERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, GLint *param); typedef void (APIENTRYP PFNGLGETVERTEXARRAYPOINTERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, void **param); #endif /* GL_EXT_direct_state_access */ #ifndef GL_NV_draw_vulkan_image typedef void (APIENTRY *GLVULKANPROCNV)(void); #endif /* GL_NV_draw_vulkan_image */ #ifndef GL_NV_gpu_shader5 typedef khronos_int64_t GLint64EXT; #endif /* GL_NV_gpu_shader5 */ #ifndef GL_NV_vertex_buffer_unified_memory typedef void (APIENTRYP PFNGLGETINTEGERUI64I_VNVPROC) (GLenum value, GLuint index, GLuint64EXT *result); #endif /* GL_NV_vertex_buffer_unified_memory */ #ifdef __cplusplus } #endif #endif #ifndef GL3W_API #define GL3W_API #endif #ifndef __gl_h_ #define __gl_h_ #endif #ifdef __cplusplus extern "C" { #endif #define GL3W_OK 0 #define GL3W_ERROR_INIT -1 #define GL3W_ERROR_LIBRARY_OPEN -2 #define GL3W_ERROR_OPENGL_VERSION -3 typedef void (*GL3WglProc)(void); typedef GL3WglProc (*GL3WGetProcAddressProc)(const char *proc); /* gl3w api */ GL3W_API int imgl3wInit(void); GL3W_API int imgl3wInit2(GL3WGetProcAddressProc proc); GL3W_API int imgl3wIsSupported(int major, int minor); GL3W_API GL3WglProc imgl3wGetProcAddress(const char *proc); /* gl3w internal state */ union GL3WProcs { GL3WglProc ptr[58]; struct { PFNGLACTIVETEXTUREPROC ActiveTexture; PFNGLATTACHSHADERPROC AttachShader; PFNGLBINDBUFFERPROC BindBuffer; PFNGLBINDSAMPLERPROC BindSampler; PFNGLBINDTEXTUREPROC BindTexture; PFNGLBINDVERTEXARRAYPROC BindVertexArray; PFNGLBLENDEQUATIONPROC BlendEquation; PFNGLBLENDEQUATIONSEPARATEPROC BlendEquationSeparate; PFNGLBLENDFUNCSEPARATEPROC BlendFuncSeparate; PFNGLBUFFERDATAPROC BufferData; PFNGLBUFFERSUBDATAPROC BufferSubData; PFNGLCLEARPROC Clear; PFNGLCLEARCOLORPROC ClearColor; PFNGLCOMPILESHADERPROC CompileShader; PFNGLCREATEPROGRAMPROC CreateProgram; PFNGLCREATESHADERPROC CreateShader; PFNGLDELETEBUFFERSPROC DeleteBuffers; PFNGLDELETEPROGRAMPROC DeleteProgram; PFNGLDELETESHADERPROC DeleteShader; PFNGLDELETETEXTURESPROC DeleteTextures; PFNGLDELETEVERTEXARRAYSPROC DeleteVertexArrays; PFNGLDETACHSHADERPROC DetachShader; PFNGLDISABLEPROC Disable; PFNGLDISABLEVERTEXATTRIBARRAYPROC DisableVertexAttribArray; PFNGLDRAWELEMENTSPROC DrawElements; PFNGLDRAWELEMENTSBASEVERTEXPROC DrawElementsBaseVertex; PFNGLENABLEPROC Enable; PFNGLENABLEVERTEXATTRIBARRAYPROC EnableVertexAttribArray; PFNGLFLUSHPROC Flush; PFNGLGENBUFFERSPROC GenBuffers; PFNGLGENTEXTURESPROC GenTextures; PFNGLGENVERTEXARRAYSPROC GenVertexArrays; PFNGLGETATTRIBLOCATIONPROC GetAttribLocation; PFNGLGETERRORPROC GetError; PFNGLGETINTEGERVPROC GetIntegerv; PFNGLGETPROGRAMINFOLOGPROC GetProgramInfoLog; PFNGLGETPROGRAMIVPROC GetProgramiv; PFNGLGETSHADERINFOLOGPROC GetShaderInfoLog; PFNGLGETSHADERIVPROC GetShaderiv; PFNGLGETSTRINGPROC GetString; PFNGLGETSTRINGIPROC GetStringi; PFNGLGETUNIFORMLOCATIONPROC GetUniformLocation; PFNGLGETVERTEXATTRIBPOINTERVPROC GetVertexAttribPointerv; PFNGLGETVERTEXATTRIBIVPROC GetVertexAttribiv; PFNGLISENABLEDPROC IsEnabled; PFNGLLINKPROGRAMPROC LinkProgram; PFNGLPIXELSTOREIPROC PixelStorei; PFNGLPOLYGONMODEPROC PolygonMode; PFNGLREADPIXELSPROC ReadPixels; PFNGLSCISSORPROC Scissor; PFNGLSHADERSOURCEPROC ShaderSource; PFNGLTEXIMAGE2DPROC TexImage2D; PFNGLTEXPARAMETERIPROC TexParameteri; PFNGLUNIFORM1IPROC Uniform1i; PFNGLUNIFORMMATRIX4FVPROC UniformMatrix4fv; PFNGLUSEPROGRAMPROC UseProgram; PFNGLVERTEXATTRIBPOINTERPROC VertexAttribPointer; PFNGLVIEWPORTPROC Viewport; } gl; }; GL3W_API extern union GL3WProcs imgl3wProcs; /* OpenGL functions */ #define glActiveTexture imgl3wProcs.gl.ActiveTexture #define glAttachShader imgl3wProcs.gl.AttachShader #define glBindBuffer imgl3wProcs.gl.BindBuffer #define glBindSampler imgl3wProcs.gl.BindSampler #define glBindTexture imgl3wProcs.gl.BindTexture #define glBindVertexArray imgl3wProcs.gl.BindVertexArray #define glBlendEquation imgl3wProcs.gl.BlendEquation #define glBlendEquationSeparate imgl3wProcs.gl.BlendEquationSeparate #define glBlendFuncSeparate imgl3wProcs.gl.BlendFuncSeparate #define glBufferData imgl3wProcs.gl.BufferData #define glBufferSubData imgl3wProcs.gl.BufferSubData #define glClear imgl3wProcs.gl.Clear #define glClearColor imgl3wProcs.gl.ClearColor #define glCompileShader imgl3wProcs.gl.CompileShader #define glCreateProgram imgl3wProcs.gl.CreateProgram #define glCreateShader imgl3wProcs.gl.CreateShader #define glDeleteBuffers imgl3wProcs.gl.DeleteBuffers #define glDeleteProgram imgl3wProcs.gl.DeleteProgram #define glDeleteShader imgl3wProcs.gl.DeleteShader #define glDeleteTextures imgl3wProcs.gl.DeleteTextures #define glDeleteVertexArrays imgl3wProcs.gl.DeleteVertexArrays #define glDetachShader imgl3wProcs.gl.DetachShader #define glDisable imgl3wProcs.gl.Disable #define glDisableVertexAttribArray imgl3wProcs.gl.DisableVertexAttribArray #define glDrawElements imgl3wProcs.gl.DrawElements #define glDrawElementsBaseVertex imgl3wProcs.gl.DrawElementsBaseVertex #define glEnable imgl3wProcs.gl.Enable #define glEnableVertexAttribArray imgl3wProcs.gl.EnableVertexAttribArray #define glFlush imgl3wProcs.gl.Flush #define glGenBuffers imgl3wProcs.gl.GenBuffers #define glGenTextures imgl3wProcs.gl.GenTextures #define glGenVertexArrays imgl3wProcs.gl.GenVertexArrays #define glGetAttribLocation imgl3wProcs.gl.GetAttribLocation #define glGetError imgl3wProcs.gl.GetError #define glGetIntegerv imgl3wProcs.gl.GetIntegerv #define glGetProgramInfoLog imgl3wProcs.gl.GetProgramInfoLog #define glGetProgramiv imgl3wProcs.gl.GetProgramiv #define glGetShaderInfoLog imgl3wProcs.gl.GetShaderInfoLog #define glGetShaderiv imgl3wProcs.gl.GetShaderiv #define glGetString imgl3wProcs.gl.GetString #define glGetStringi imgl3wProcs.gl.GetStringi #define glGetUniformLocation imgl3wProcs.gl.GetUniformLocation #define glGetVertexAttribPointerv imgl3wProcs.gl.GetVertexAttribPointerv #define glGetVertexAttribiv imgl3wProcs.gl.GetVertexAttribiv #define glIsEnabled imgl3wProcs.gl.IsEnabled #define glLinkProgram imgl3wProcs.gl.LinkProgram #define glPixelStorei imgl3wProcs.gl.PixelStorei #define glPolygonMode imgl3wProcs.gl.PolygonMode #define glReadPixels imgl3wProcs.gl.ReadPixels #define glScissor imgl3wProcs.gl.Scissor #define glShaderSource imgl3wProcs.gl.ShaderSource #define glTexImage2D imgl3wProcs.gl.TexImage2D #define glTexParameteri imgl3wProcs.gl.TexParameteri #define glUniform1i imgl3wProcs.gl.Uniform1i #define glUniformMatrix4fv imgl3wProcs.gl.UniformMatrix4fv #define glUseProgram imgl3wProcs.gl.UseProgram #define glVertexAttribPointer imgl3wProcs.gl.VertexAttribPointer #define glViewport imgl3wProcs.gl.Viewport #ifdef __cplusplus } #endif #endif #ifdef IMGL3W_IMPL #ifdef __cplusplus extern "C" { #endif #include <stdlib.h> #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) #if defined(_WIN32) #ifndef WIN32_LEAN_AND_MEAN #define WIN32_LEAN_AND_MEAN 1 #endif #include <windows.h> static HMODULE libgl; typedef PROC(__stdcall* GL3WglGetProcAddr)(LPCSTR); static GL3WglGetProcAddr wgl_get_proc_address; static int open_libgl(void) { libgl = LoadLibraryA("opengl32.dll"); if (!libgl) return GL3W_ERROR_LIBRARY_OPEN; wgl_get_proc_address = (GL3WglGetProcAddr)GetProcAddress(libgl, "wglGetProcAddress"); return GL3W_OK; } static void close_libgl(void) { FreeLibrary(libgl); } static GL3WglProc get_proc(const char *proc) { GL3WglProc res; res = (GL3WglProc)wgl_get_proc_address(proc); if (!res) res = (GL3WglProc)GetProcAddress(libgl, proc); return res; } #elif defined(__APPLE__) #include <dlfcn.h> static void *libgl; static int open_libgl(void) { libgl = dlopen("/System/Library/Frameworks/OpenGL.framework/OpenGL", RTLD_LAZY | RTLD_LOCAL); if (!libgl) return GL3W_ERROR_LIBRARY_OPEN; return GL3W_OK; } static void close_libgl(void) { dlclose(libgl); } static GL3WglProc get_proc(const char *proc) { GL3WglProc res; *(void **)(&res) = dlsym(libgl, proc); return res; } #else #include <dlfcn.h> static void *libgl; static GL3WglProc (*glx_get_proc_address)(const GLubyte *); static int open_libgl(void) { libgl = dlopen("libGL.so.1", RTLD_LAZY | RTLD_LOCAL); if (!libgl) return GL3W_ERROR_LIBRARY_OPEN; *(void **)(&glx_get_proc_address) = dlsym(libgl, "glXGetProcAddressARB"); return GL3W_OK; } static void close_libgl(void) { dlclose(libgl); } static GL3WglProc get_proc(const char *proc) { GL3WglProc res; res = glx_get_proc_address((const GLubyte *)proc); if (!res) *(void **)(&res) = dlsym(libgl, proc); return res; } #endif static struct { int major, minor; } version; static int parse_version(void) { if (!glGetIntegerv) return GL3W_ERROR_INIT; glGetIntegerv(GL_MAJOR_VERSION, &version.major); glGetIntegerv(GL_MINOR_VERSION, &version.minor); if (version.major == 0 && version.minor == 0) { // Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>" const char* gl_version = (const char*)glGetString(GL_VERSION); sscanf(gl_version, "%d.%d", &version.major, &version.minor); } if (version.major < 2) return GL3W_ERROR_OPENGL_VERSION; return GL3W_OK; } static void load_procs(GL3WGetProcAddressProc proc); int imgl3wInit(void) { int res = open_libgl(); if (res) return res; atexit(close_libgl); return imgl3wInit2(get_proc); } int imgl3wInit2(GL3WGetProcAddressProc proc) { load_procs(proc); return parse_version(); } int imgl3wIsSupported(int major, int minor) { if (major < 2) return 0; if (version.major == major) return version.minor >= minor; return version.major >= major; } GL3WglProc imgl3wGetProcAddress(const char *proc) { return get_proc(proc); } static const char *proc_names[] = { "glActiveTexture", "glAttachShader", "glBindBuffer", "glBindSampler", "glBindTexture", "glBindVertexArray", "glBlendEquation", "glBlendEquationSeparate", "glBlendFuncSeparate", "glBufferData", "glBufferSubData", "glClear", "glClearColor", "glCompileShader", "glCreateProgram", "glCreateShader", "glDeleteBuffers", "glDeleteProgram", "glDeleteShader", "glDeleteTextures", "glDeleteVertexArrays", "glDetachShader", "glDisable", "glDisableVertexAttribArray", "glDrawElements", "glDrawElementsBaseVertex", "glEnable", "glEnableVertexAttribArray", "glFlush", "glGenBuffers", "glGenTextures", "glGenVertexArrays", "glGetAttribLocation", "glGetError", "glGetIntegerv", "glGetProgramInfoLog", "glGetProgramiv", "glGetShaderInfoLog", "glGetShaderiv", "glGetString", "glGetStringi", "glGetUniformLocation", "glGetVertexAttribPointerv", "glGetVertexAttribiv", "glIsEnabled", "glLinkProgram", "glPixelStorei", "glPolygonMode", "glReadPixels", "glScissor", "glShaderSource", "glTexImage2D", "glTexParameteri", "glUniform1i", "glUniformMatrix4fv", "glUseProgram", "glVertexAttribPointer", "glViewport", }; GL3W_API union GL3WProcs imgl3wProcs; static void load_procs(GL3WGetProcAddressProc proc) { size_t i; for (i = 0; i < ARRAY_SIZE(proc_names); i++) imgl3wProcs.ptr[i] = proc(proc_names[i]); } #ifdef __cplusplus } #endif #endif