| //----------------------------------------------------------------------------- |
| // 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 GLboolean (APIENTRYP PFNGLISPROGRAMPROC) (GLuint program); |
| 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 GLboolean APIENTRY glIsProgram (GLuint program); |
| 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[59]; |
| 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; |
| PFNGLISPROGRAMPROC IsProgram; |
| 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 glIsProgram imgl3wProcs.gl.IsProgram |
| #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>" |
| if (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", |
| "glIsProgram", |
| "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 |
