731 lines
31 KiB
C
731 lines
31 KiB
C
/*
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* This file was generated with gl3w_gen.py, part of imgl3w
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* (hosted at https://github.com/dearimgui/gl3w_stripped)
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*
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* This is free and unencumbered software released into the public domain.
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*
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* Anyone is free to copy, modify, publish, use, compile, sell, or
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* distribute this software, either in source code form or as a compiled
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* binary, for any purpose, commercial or non-commercial, and by any
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* means.
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*
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* In jurisdictions that recognize copyright laws, the author or authors
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* of this software dedicate any and all copyright interest in the
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* software to the public domain. We make this dedication for the benefit
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* of the public at large and to the detriment of our heirs and
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* successors. We intend this dedication to be an overt act of
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* relinquishment in perpetuity of all present and future rights to this
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* software under copyright law.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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// 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.
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// Our loader is custom-generated, based on gl3w but automatically filtered to only include enums/functions that we use in this source file.
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// Regenerate with: python gl3w_gen.py --imgui-dir /path/to/imgui/
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// see https://github.com/dearimgui/gl3w_stripped for more info.
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#ifndef __gl3w_h_
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#define __gl3w_h_
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// Adapted from KHR/khrplatform.h to avoid including entire file.
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typedef float khronos_float_t;
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typedef signed char khronos_int8_t;
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typedef unsigned char khronos_uint8_t;
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typedef signed short int khronos_int16_t;
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typedef unsigned short int khronos_uint16_t;
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#ifdef _WIN64
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typedef signed long long int khronos_intptr_t;
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typedef signed long long int khronos_ssize_t;
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#else
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typedef signed long int khronos_intptr_t;
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typedef signed long int khronos_ssize_t;
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#endif
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#if defined(_MSC_VER) && !defined(__clang__)
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typedef signed __int64 khronos_int64_t;
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typedef unsigned __int64 khronos_uint64_t;
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#elif (defined(__clang__) || defined(__GNUC__)) && (__cplusplus < 201100)
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#include <stdint.h>
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typedef int64_t khronos_int64_t;
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typedef uint64_t khronos_uint64_t;
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#else
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typedef signed long long khronos_int64_t;
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typedef unsigned long long khronos_uint64_t;
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#endif
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#ifndef __gl_glcorearb_h_
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#define __gl_glcorearb_h_ 1
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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** Copyright 2013-2020 The Khronos Group Inc.
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** SPDX-License-Identifier: MIT
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**
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** This header is generated from the Khronos OpenGL / OpenGL ES XML
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** API Registry. The current version of the Registry, generator scripts
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** used to make the header, and the header can be found at
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** https://github.com/KhronosGroup/OpenGL-Registry
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*/
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#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN 1
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#endif
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#include <windows.h>
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#endif
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#ifndef APIENTRY
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#define APIENTRY
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#endif
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#ifndef APIENTRYP
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#define APIENTRYP APIENTRY *
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#endif
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#ifndef GLAPI
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#define GLAPI extern
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#endif
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/* glcorearb.h is for use with OpenGL core profile implementations.
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** It should should be placed in the same directory as gl.h and
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** included as <GL/glcorearb.h>.
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**
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** glcorearb.h includes only APIs in the latest OpenGL core profile
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** implementation together with APIs in newer ARB extensions which
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** can be supported by the core profile. It does not, and never will
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** include functionality removed from the core profile, such as
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** fixed-function vertex and fragment processing.
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**
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** Do not #include both <GL/glcorearb.h> and either of <GL/gl.h> or
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** <GL/glext.h> in the same source file.
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*/
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/* Generated C header for:
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* API: gl
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* Profile: core
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* Versions considered: .*
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* Versions emitted: .*
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* Default extensions included: glcore
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* Additional extensions included: _nomatch_^
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* Extensions removed: _nomatch_^
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*/
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#ifndef GL_VERSION_1_0
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typedef void GLvoid;
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typedef unsigned int GLenum;
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typedef khronos_float_t GLfloat;
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typedef int GLint;
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typedef int GLsizei;
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typedef unsigned int GLbitfield;
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typedef double GLdouble;
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typedef unsigned int GLuint;
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typedef unsigned char GLboolean;
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typedef khronos_uint8_t GLubyte;
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#define GL_COLOR_BUFFER_BIT 0x00004000
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#define GL_FALSE 0
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#define GL_TRUE 1
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#define GL_TRIANGLES 0x0004
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#define GL_ONE 1
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#define GL_SRC_ALPHA 0x0302
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#define GL_ONE_MINUS_SRC_ALPHA 0x0303
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#define GL_FRONT_AND_BACK 0x0408
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#define GL_POLYGON_MODE 0x0B40
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#define GL_CULL_FACE 0x0B44
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#define GL_DEPTH_TEST 0x0B71
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#define GL_STENCIL_TEST 0x0B90
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#define GL_VIEWPORT 0x0BA2
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#define GL_BLEND 0x0BE2
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#define GL_SCISSOR_BOX 0x0C10
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#define GL_SCISSOR_TEST 0x0C11
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#define GL_UNPACK_ROW_LENGTH 0x0CF2
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#define GL_PACK_ALIGNMENT 0x0D05
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#define GL_TEXTURE_2D 0x0DE1
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#define GL_UNSIGNED_BYTE 0x1401
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#define GL_UNSIGNED_SHORT 0x1403
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#define GL_UNSIGNED_INT 0x1405
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#define GL_FLOAT 0x1406
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#define GL_RGBA 0x1908
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#define GL_FILL 0x1B02
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#define GL_VERSION 0x1F02
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#define GL_EXTENSIONS 0x1F03
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#define GL_LINEAR 0x2601
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#define GL_TEXTURE_MAG_FILTER 0x2800
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#define GL_TEXTURE_MIN_FILTER 0x2801
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typedef void (APIENTRYP PFNGLPOLYGONMODEPROC) (GLenum face, GLenum mode);
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typedef void (APIENTRYP PFNGLSCISSORPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
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typedef void (APIENTRYP PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param);
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typedef void (APIENTRYP PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
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typedef void (APIENTRYP PFNGLCLEARPROC) (GLbitfield mask);
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typedef void (APIENTRYP PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
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typedef void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap);
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typedef void (APIENTRYP PFNGLENABLEPROC) (GLenum cap);
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typedef void (APIENTRYP PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param);
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typedef void (APIENTRYP PFNGLREADPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
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typedef void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *data);
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typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGPROC) (GLenum name);
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typedef GLboolean (APIENTRYP PFNGLISENABLEDPROC) (GLenum cap);
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typedef void (APIENTRYP PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
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#ifdef GL_GLEXT_PROTOTYPES
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GLAPI void APIENTRY glPolygonMode (GLenum face, GLenum mode);
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GLAPI void APIENTRY glScissor (GLint x, GLint y, GLsizei width, GLsizei height);
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GLAPI void APIENTRY glTexParameteri (GLenum target, GLenum pname, GLint param);
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GLAPI void APIENTRY glTexImage2D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
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GLAPI void APIENTRY glClear (GLbitfield mask);
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GLAPI void APIENTRY glClearColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
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GLAPI void APIENTRY glDisable (GLenum cap);
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GLAPI void APIENTRY glEnable (GLenum cap);
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GLAPI void APIENTRY glPixelStorei (GLenum pname, GLint param);
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GLAPI void APIENTRY glReadPixels (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
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GLAPI void APIENTRY glGetIntegerv (GLenum pname, GLint *data);
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GLAPI const GLubyte *APIENTRY glGetString (GLenum name);
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GLAPI GLboolean APIENTRY glIsEnabled (GLenum cap);
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GLAPI void APIENTRY glViewport (GLint x, GLint y, GLsizei width, GLsizei height);
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#endif
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#endif /* GL_VERSION_1_0 */
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#ifndef GL_VERSION_1_1
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typedef khronos_float_t GLclampf;
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typedef double GLclampd;
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#define GL_TEXTURE_BINDING_2D 0x8069
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typedef void (APIENTRYP PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices);
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typedef void (APIENTRYP PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture);
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typedef void (APIENTRYP PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures);
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typedef void (APIENTRYP PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures);
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#ifdef GL_GLEXT_PROTOTYPES
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GLAPI void APIENTRY glDrawElements (GLenum mode, GLsizei count, GLenum type, const void *indices);
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GLAPI void APIENTRY glBindTexture (GLenum target, GLuint texture);
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GLAPI void APIENTRY glDeleteTextures (GLsizei n, const GLuint *textures);
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GLAPI void APIENTRY glGenTextures (GLsizei n, GLuint *textures);
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#endif
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#endif /* GL_VERSION_1_1 */
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#ifndef GL_VERSION_1_3
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#define GL_TEXTURE0 0x84C0
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#define GL_ACTIVE_TEXTURE 0x84E0
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typedef void (APIENTRYP PFNGLACTIVETEXTUREPROC) (GLenum texture);
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#ifdef GL_GLEXT_PROTOTYPES
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GLAPI void APIENTRY glActiveTexture (GLenum texture);
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#endif
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#endif /* GL_VERSION_1_3 */
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#ifndef GL_VERSION_1_4
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#define GL_BLEND_DST_RGB 0x80C8
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|
#define GL_BLEND_SRC_RGB 0x80C9
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|
#define GL_BLEND_DST_ALPHA 0x80CA
|
|
#define GL_BLEND_SRC_ALPHA 0x80CB
|
|
#define GL_FUNC_ADD 0x8006
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typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEPROC) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
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typedef void (APIENTRYP PFNGLBLENDEQUATIONPROC) (GLenum mode);
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#ifdef GL_GLEXT_PROTOTYPES
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|
GLAPI void APIENTRY glBlendFuncSeparate (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
|
|
GLAPI void APIENTRY glBlendEquation (GLenum mode);
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#endif
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#endif /* GL_VERSION_1_4 */
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|
#ifndef GL_VERSION_1_5
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|
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_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);
|
|
#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);
|
|
#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_BLEND_EQUATION_ALPHA 0x883D
|
|
#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);
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|
typedef void (APIENTRYP PFNGLCOMPILESHADERPROC) (GLuint shader);
|
|
typedef GLuint (APIENTRYP PFNGLCREATEPROGRAMPROC) (void);
|
|
typedef GLuint (APIENTRYP PFNGLCREATESHADERPROC) (GLenum type);
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|
typedef void (APIENTRYP PFNGLDELETEPROGRAMPROC) (GLuint program);
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|
typedef void (APIENTRYP PFNGLDELETESHADERPROC) (GLuint shader);
|
|
typedef void (APIENTRYP PFNGLDETACHSHADERPROC) (GLuint program, GLuint shader);
|
|
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);
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|
typedef void (APIENTRYP PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
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|
typedef void (APIENTRYP PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params);
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|
typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
|
|
typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar *name);
|
|
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 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 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
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#define GL_CLIP_ORIGIN 0x935C
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typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint *param);
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typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI64_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint64 *param);
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#endif /* GL_VERSION_4_5 */
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#ifndef GL_ARB_bindless_texture
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typedef khronos_uint64_t GLuint64EXT;
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#endif /* GL_ARB_bindless_texture */
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#ifndef GL_ARB_cl_event
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struct _cl_context;
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struct _cl_event;
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#endif /* GL_ARB_cl_event */
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#ifndef GL_ARB_clip_control
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#define GL_ARB_clip_control 1
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#endif /* GL_ARB_clip_control */
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#ifndef GL_ARB_debug_output
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typedef void (APIENTRY *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
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#endif /* GL_ARB_debug_output */
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#ifndef GL_EXT_EGL_image_storage
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typedef void *GLeglImageOES;
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#endif /* GL_EXT_EGL_image_storage */
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#ifndef GL_EXT_direct_state_access
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typedef void (APIENTRYP PFNGLGETFLOATI_VEXTPROC) (GLenum pname, GLuint index, GLfloat *params);
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typedef void (APIENTRYP PFNGLGETDOUBLEI_VEXTPROC) (GLenum pname, GLuint index, GLdouble *params);
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typedef void (APIENTRYP PFNGLGETPOINTERI_VEXTPROC) (GLenum pname, GLuint index, void **params);
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typedef void (APIENTRYP PFNGLGETVERTEXARRAYINTEGERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, GLint *param);
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typedef void (APIENTRYP PFNGLGETVERTEXARRAYPOINTERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, void **param);
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#endif /* GL_EXT_direct_state_access */
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#ifndef GL_NV_draw_vulkan_image
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typedef void (APIENTRY *GLVULKANPROCNV)(void);
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#endif /* GL_NV_draw_vulkan_image */
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#ifndef GL_NV_gpu_shader5
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typedef khronos_int64_t GLint64EXT;
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#endif /* GL_NV_gpu_shader5 */
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#ifndef GL_NV_vertex_buffer_unified_memory
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typedef void (APIENTRYP PFNGLGETINTEGERUI64I_VNVPROC) (GLenum value, GLuint index, GLuint64EXT *result);
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#endif /* GL_NV_vertex_buffer_unified_memory */
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#ifdef __cplusplus
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}
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#endif
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#endif
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#ifndef GL3W_API
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#define GL3W_API
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#endif
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#ifndef __gl_h_
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#define __gl_h_
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define GL3W_OK 0
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#define GL3W_ERROR_INIT -1
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#define GL3W_ERROR_LIBRARY_OPEN -2
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#define GL3W_ERROR_OPENGL_VERSION -3
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typedef void (*GL3WglProc)(void);
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typedef GL3WglProc (*GL3WGetProcAddressProc)(const char *proc);
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/* gl3w api */
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GL3W_API int imgl3wInit(void);
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GL3W_API int imgl3wInit2(GL3WGetProcAddressProc proc);
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GL3W_API int imgl3wIsSupported(int major, int minor);
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GL3W_API GL3WglProc imgl3wGetProcAddress(const char *proc);
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/* gl3w internal state */
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union GL3WProcs {
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GL3WglProc ptr[52];
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struct {
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PFNGLACTIVETEXTUREPROC ActiveTexture;
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PFNGLATTACHSHADERPROC AttachShader;
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PFNGLBINDBUFFERPROC BindBuffer;
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PFNGLBINDSAMPLERPROC BindSampler;
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PFNGLBINDTEXTUREPROC BindTexture;
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PFNGLBINDVERTEXARRAYPROC BindVertexArray;
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PFNGLBLENDEQUATIONPROC BlendEquation;
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PFNGLBLENDEQUATIONSEPARATEPROC BlendEquationSeparate;
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PFNGLBLENDFUNCSEPARATEPROC BlendFuncSeparate;
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PFNGLBUFFERDATAPROC BufferData;
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PFNGLCLEARPROC Clear;
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PFNGLCLEARCOLORPROC ClearColor;
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PFNGLCOMPILESHADERPROC CompileShader;
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PFNGLCREATEPROGRAMPROC CreateProgram;
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PFNGLCREATESHADERPROC CreateShader;
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PFNGLDELETEBUFFERSPROC DeleteBuffers;
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PFNGLDELETEPROGRAMPROC DeleteProgram;
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PFNGLDELETESHADERPROC DeleteShader;
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PFNGLDELETETEXTURESPROC DeleteTextures;
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PFNGLDELETEVERTEXARRAYSPROC DeleteVertexArrays;
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PFNGLDETACHSHADERPROC DetachShader;
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PFNGLDISABLEPROC Disable;
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PFNGLDRAWELEMENTSPROC DrawElements;
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PFNGLDRAWELEMENTSBASEVERTEXPROC DrawElementsBaseVertex;
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PFNGLENABLEPROC Enable;
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PFNGLENABLEVERTEXATTRIBARRAYPROC EnableVertexAttribArray;
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PFNGLGENBUFFERSPROC GenBuffers;
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PFNGLGENTEXTURESPROC GenTextures;
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PFNGLGENVERTEXARRAYSPROC GenVertexArrays;
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PFNGLGETATTRIBLOCATIONPROC GetAttribLocation;
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PFNGLGETINTEGERVPROC GetIntegerv;
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PFNGLGETPROGRAMINFOLOGPROC GetProgramInfoLog;
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PFNGLGETPROGRAMIVPROC GetProgramiv;
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PFNGLGETSHADERINFOLOGPROC GetShaderInfoLog;
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PFNGLGETSHADERIVPROC GetShaderiv;
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PFNGLGETSTRINGPROC GetString;
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PFNGLGETSTRINGIPROC GetStringi;
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PFNGLGETUNIFORMLOCATIONPROC GetUniformLocation;
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PFNGLISENABLEDPROC IsEnabled;
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PFNGLLINKPROGRAMPROC LinkProgram;
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PFNGLPIXELSTOREIPROC PixelStorei;
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PFNGLPOLYGONMODEPROC PolygonMode;
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PFNGLREADPIXELSPROC ReadPixels;
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PFNGLSCISSORPROC Scissor;
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PFNGLSHADERSOURCEPROC ShaderSource;
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PFNGLTEXIMAGE2DPROC TexImage2D;
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PFNGLTEXPARAMETERIPROC TexParameteri;
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PFNGLUNIFORM1IPROC Uniform1i;
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PFNGLUNIFORMMATRIX4FVPROC UniformMatrix4fv;
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PFNGLUSEPROGRAMPROC UseProgram;
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PFNGLVERTEXATTRIBPOINTERPROC VertexAttribPointer;
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PFNGLVIEWPORTPROC Viewport;
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} gl;
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};
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GL3W_API extern union GL3WProcs gl3wProcs;
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/* OpenGL functions */
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#define glActiveTexture gl3wProcs.gl.ActiveTexture
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#define glAttachShader gl3wProcs.gl.AttachShader
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#define glBindBuffer gl3wProcs.gl.BindBuffer
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#define glBindSampler gl3wProcs.gl.BindSampler
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#define glBindTexture gl3wProcs.gl.BindTexture
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#define glBindVertexArray gl3wProcs.gl.BindVertexArray
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#define glBlendEquation gl3wProcs.gl.BlendEquation
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#define glBlendEquationSeparate gl3wProcs.gl.BlendEquationSeparate
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#define glBlendFuncSeparate gl3wProcs.gl.BlendFuncSeparate
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#define glBufferData gl3wProcs.gl.BufferData
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#define glClear gl3wProcs.gl.Clear
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#define glClearColor gl3wProcs.gl.ClearColor
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#define glCompileShader gl3wProcs.gl.CompileShader
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#define glCreateProgram gl3wProcs.gl.CreateProgram
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#define glCreateShader gl3wProcs.gl.CreateShader
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#define glDeleteBuffers gl3wProcs.gl.DeleteBuffers
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#define glDeleteProgram gl3wProcs.gl.DeleteProgram
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#define glDeleteShader gl3wProcs.gl.DeleteShader
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#define glDeleteTextures gl3wProcs.gl.DeleteTextures
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#define glDeleteVertexArrays gl3wProcs.gl.DeleteVertexArrays
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#define glDetachShader gl3wProcs.gl.DetachShader
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#define glDisable gl3wProcs.gl.Disable
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#define glDrawElements gl3wProcs.gl.DrawElements
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#define glDrawElementsBaseVertex gl3wProcs.gl.DrawElementsBaseVertex
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#define glEnable gl3wProcs.gl.Enable
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#define glEnableVertexAttribArray gl3wProcs.gl.EnableVertexAttribArray
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#define glGenBuffers gl3wProcs.gl.GenBuffers
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#define glGenTextures gl3wProcs.gl.GenTextures
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#define glGenVertexArrays gl3wProcs.gl.GenVertexArrays
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#define glGetAttribLocation gl3wProcs.gl.GetAttribLocation
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#define glGetIntegerv gl3wProcs.gl.GetIntegerv
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#define glGetProgramInfoLog gl3wProcs.gl.GetProgramInfoLog
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#define glGetProgramiv gl3wProcs.gl.GetProgramiv
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#define glGetShaderInfoLog gl3wProcs.gl.GetShaderInfoLog
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#define glGetShaderiv gl3wProcs.gl.GetShaderiv
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#define glGetString gl3wProcs.gl.GetString
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#define glGetStringi gl3wProcs.gl.GetStringi
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#define glGetUniformLocation gl3wProcs.gl.GetUniformLocation
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#define glIsEnabled gl3wProcs.gl.IsEnabled
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#define glLinkProgram gl3wProcs.gl.LinkProgram
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#define glPixelStorei gl3wProcs.gl.PixelStorei
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#define glPolygonMode gl3wProcs.gl.PolygonMode
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#define glReadPixels gl3wProcs.gl.ReadPixels
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#define glScissor gl3wProcs.gl.Scissor
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#define glShaderSource gl3wProcs.gl.ShaderSource
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#define glTexImage2D gl3wProcs.gl.TexImage2D
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#define glTexParameteri gl3wProcs.gl.TexParameteri
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#define glUniform1i gl3wProcs.gl.Uniform1i
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#define glUniformMatrix4fv gl3wProcs.gl.UniformMatrix4fv
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#define glUseProgram gl3wProcs.gl.UseProgram
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#define glVertexAttribPointer gl3wProcs.gl.VertexAttribPointer
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#define glViewport gl3wProcs.gl.Viewport
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#ifdef __cplusplus
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}
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#endif
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#endif
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#ifdef IMGL3W_IMPL
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdlib.h>
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#if defined(_WIN32)
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN 1
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#endif
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#include <windows.h>
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static HMODULE libgl;
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typedef PROC(__stdcall* GL3WglGetProcAddr)(LPCSTR);
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static GL3WglGetProcAddr wgl_get_proc_address;
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static int open_libgl(void)
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{
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libgl = LoadLibraryA("opengl32.dll");
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if (!libgl)
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return GL3W_ERROR_LIBRARY_OPEN;
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wgl_get_proc_address = (GL3WglGetProcAddr)GetProcAddress(libgl, "wglGetProcAddress");
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return GL3W_OK;
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}
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static void close_libgl(void) { FreeLibrary(libgl); }
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static GL3WglProc get_proc(const char *proc)
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{
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GL3WglProc res;
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res = (GL3WglProc)wgl_get_proc_address(proc);
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if (!res)
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res = (GL3WglProc)GetProcAddress(libgl, proc);
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return res;
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}
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#elif defined(__APPLE__)
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#include <dlfcn.h>
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static void *libgl;
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static int open_libgl(void)
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{
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libgl = dlopen("/System/Library/Frameworks/OpenGL.framework/OpenGL", RTLD_LAZY | RTLD_LOCAL);
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if (!libgl)
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return GL3W_ERROR_LIBRARY_OPEN;
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return GL3W_OK;
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}
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static void close_libgl(void) { dlclose(libgl); }
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static GL3WglProc get_proc(const char *proc)
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{
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GL3WglProc res;
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*(void **)(&res) = dlsym(libgl, proc);
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return res;
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}
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#else
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#include <dlfcn.h>
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static void *libgl;
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static GL3WglProc (*glx_get_proc_address)(const GLubyte *);
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static int open_libgl(void)
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{
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libgl = dlopen("libGL.so.1", RTLD_LAZY | RTLD_LOCAL);
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if (!libgl)
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return GL3W_ERROR_LIBRARY_OPEN;
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*(void **)(&glx_get_proc_address) = dlsym(libgl, "glXGetProcAddressARB");
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return GL3W_OK;
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}
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static void close_libgl(void) { dlclose(libgl); }
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static GL3WglProc get_proc(const char *proc)
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{
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GL3WglProc res;
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res = glx_get_proc_address((const GLubyte *)proc);
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if (!res)
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*(void **)(&res) = dlsym(libgl, proc);
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return res;
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}
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#endif
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static struct { int major, minor; } version;
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static int parse_version(void)
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{
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if (!glGetIntegerv)
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return GL3W_ERROR_INIT;
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glGetIntegerv(GL_MAJOR_VERSION, &version.major);
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glGetIntegerv(GL_MINOR_VERSION, &version.minor);
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if (version.major < 3)
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return GL3W_ERROR_OPENGL_VERSION;
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return GL3W_OK;
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}
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static void load_procs(GL3WGetProcAddressProc proc);
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int imgl3wInit(void)
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{
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int res = open_libgl();
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if (res)
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return res;
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atexit(close_libgl);
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return imgl3wInit2(get_proc);
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}
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int imgl3wInit2(GL3WGetProcAddressProc proc)
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{
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load_procs(proc);
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return parse_version();
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}
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int imgl3wIsSupported(int major, int minor)
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{
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if (major < 3)
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return 0;
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if (version.major == major)
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return version.minor >= minor;
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return version.major >= major;
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}
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GL3WglProc imgl3wGetProcAddress(const char *proc) { return get_proc(proc); }
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static const char *proc_names[] = {
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"glActiveTexture",
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"glAttachShader",
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"glBindBuffer",
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"glBindSampler",
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"glBindTexture",
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"glBindVertexArray",
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"glBlendEquation",
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"glBlendEquationSeparate",
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"glBlendFuncSeparate",
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"glBufferData",
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"glClear",
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"glClearColor",
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"glCompileShader",
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"glCreateProgram",
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"glCreateShader",
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"glDeleteBuffers",
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"glDeleteProgram",
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"glDeleteShader",
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"glDeleteTextures",
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"glDeleteVertexArrays",
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"glDetachShader",
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"glDisable",
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"glDrawElements",
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"glDrawElementsBaseVertex",
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"glEnable",
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"glEnableVertexAttribArray",
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"glGenBuffers",
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"glGenTextures",
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"glGenVertexArrays",
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"glGetAttribLocation",
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"glGetIntegerv",
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"glGetProgramInfoLog",
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"glGetProgramiv",
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"glGetShaderInfoLog",
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"glGetShaderiv",
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"glGetString",
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"glGetStringi",
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"glGetUniformLocation",
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"glIsEnabled",
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"glLinkProgram",
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"glPixelStorei",
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"glPolygonMode",
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"glReadPixels",
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"glScissor",
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"glShaderSource",
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"glTexImage2D",
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"glTexParameteri",
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"glUniform1i",
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"glUniformMatrix4fv",
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"glUseProgram",
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"glVertexAttribPointer",
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"glViewport",
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};
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GL3W_API union GL3WProcs gl3wProcs;
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static void load_procs(GL3WGetProcAddressProc proc)
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{
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size_t i;
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for (i = 0; i < ARRAY_SIZE(proc_names); i++)
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gl3wProcs.ptr[i] = proc(proc_names[i]);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif
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