Backends: OpenGL3: Embed our own minimal GL loader based on gl3w and use it in SDL/GLFW examples. (#4445)
Loader repository at https://github.com/dearimgui/gl3w_stripped Removed support for using custom loaders in examples/opengl3 backenddocking
Rokas Kupstys
3 years ago
committed by
ocornut
parent
7bbf8f2ab0
commit
459de65477
@ -0,0 +1,729 @@
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
// 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 this source file.
|
||||
// Regenerate with: python gl3w_gen.py --imgui-dir /path/to/imgui/
|
||||
// see https://github.com/dearimgui/gl3w_stripped for more info.
|
||||
#ifndef __gl3w_h_
|
||||
#define __gl3w_h_
|
||||
|
||||
// Adapted from KHR/khrplatform.h to avoid including entire file.
|
||||
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
|
||||
|
||||
#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_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_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 PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param);
|
||||
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 glPixelStorei (GLenum pname, GLint param);
|
||||
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);
|
||||
#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);
|
||||
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 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 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_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 PFNGLCLIPCONTROLPROC) (GLenum origin, GLenum depth);
|
||||
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);
|
||||
#ifdef GL_GLEXT_PROTOTYPES
|
||||
GLAPI void APIENTRY glClipControl (GLenum origin, GLenum depth);
|
||||
#endif
|
||||
#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[52];
|
||||
struct {
|
||||
PFNGLACTIVETEXTUREPROC ActiveTexture;
|
||||
PFNGLATTACHSHADERPROC AttachShader;
|
||||
PFNGLBINDBUFFERPROC BindBuffer;
|
||||
PFNGLBINDSAMPLERPROC BindSampler;
|
||||
PFNGLBINDTEXTUREPROC BindTexture;
|
||||
PFNGLBINDVERTEXARRAYPROC BindVertexArray;
|
||||
PFNGLBLENDEQUATIONPROC BlendEquation;
|
||||
PFNGLBLENDEQUATIONSEPARATEPROC BlendEquationSeparate;
|
||||
PFNGLBLENDFUNCSEPARATEPROC BlendFuncSeparate;
|
||||
PFNGLBUFFERDATAPROC BufferData;
|
||||
PFNGLCLEARPROC Clear;
|
||||
PFNGLCLEARCOLORPROC ClearColor;
|
||||
PFNGLCLIPCONTROLPROC ClipControl;
|
||||
PFNGLCOMPILESHADERPROC CompileShader;
|
||||
PFNGLCREATEPROGRAMPROC CreateProgram;
|
||||
PFNGLCREATESHADERPROC CreateShader;
|
||||
PFNGLDELETEBUFFERSPROC DeleteBuffers;
|
||||
PFNGLDELETEPROGRAMPROC DeleteProgram;
|
||||
PFNGLDELETESHADERPROC DeleteShader;
|
||||
PFNGLDELETETEXTURESPROC DeleteTextures;
|
||||
PFNGLDELETEVERTEXARRAYSPROC DeleteVertexArrays;
|
||||
PFNGLDETACHSHADERPROC DetachShader;
|
||||
PFNGLDISABLEPROC Disable;
|
||||
PFNGLDRAWELEMENTSPROC DrawElements;
|
||||
PFNGLDRAWELEMENTSBASEVERTEXPROC DrawElementsBaseVertex;
|
||||
PFNGLENABLEPROC Enable;
|
||||
PFNGLENABLEVERTEXATTRIBARRAYPROC EnableVertexAttribArray;
|
||||
PFNGLGENBUFFERSPROC GenBuffers;
|
||||
PFNGLGENTEXTURESPROC GenTextures;
|
||||
PFNGLGENVERTEXARRAYSPROC GenVertexArrays;
|
||||
PFNGLGETATTRIBLOCATIONPROC GetAttribLocation;
|
||||
PFNGLGETINTEGERVPROC GetIntegerv;
|
||||
PFNGLGETPROGRAMINFOLOGPROC GetProgramInfoLog;
|
||||
PFNGLGETPROGRAMIVPROC GetProgramiv;
|
||||
PFNGLGETSHADERINFOLOGPROC GetShaderInfoLog;
|
||||
PFNGLGETSHADERIVPROC GetShaderiv;
|
||||
PFNGLGETSTRINGPROC GetString;
|
||||
PFNGLGETSTRINGIPROC GetStringi;
|
||||
PFNGLGETUNIFORMLOCATIONPROC GetUniformLocation;
|
||||
PFNGLISENABLEDPROC IsEnabled;
|
||||
PFNGLLINKPROGRAMPROC LinkProgram;
|
||||
PFNGLPIXELSTOREIPROC PixelStorei;
|
||||
PFNGLPOLYGONMODEPROC PolygonMode;
|
||||
PFNGLSCISSORPROC Scissor;
|
||||
PFNGLSHADERSOURCEPROC ShaderSource;
|
||||
PFNGLTEXIMAGE2DPROC TexImage2D;
|
||||
PFNGLTEXPARAMETERIPROC TexParameteri;
|
||||
PFNGLUNIFORM1IPROC Uniform1i;
|
||||
PFNGLUNIFORMMATRIX4FVPROC UniformMatrix4fv;
|
||||
PFNGLUSEPROGRAMPROC UseProgram;
|
||||
PFNGLVERTEXATTRIBPOINTERPROC VertexAttribPointer;
|
||||
PFNGLVIEWPORTPROC Viewport;
|
||||
} gl;
|
||||
};
|
||||
|
||||
GL3W_API extern union GL3WProcs gl3wProcs;
|
||||
|
||||
/* OpenGL functions */
|
||||
#define glActiveTexture gl3wProcs.gl.ActiveTexture
|
||||
#define glAttachShader gl3wProcs.gl.AttachShader
|
||||
#define glBindBuffer gl3wProcs.gl.BindBuffer
|
||||
#define glBindSampler gl3wProcs.gl.BindSampler
|
||||
#define glBindTexture gl3wProcs.gl.BindTexture
|
||||
#define glBindVertexArray gl3wProcs.gl.BindVertexArray
|
||||
#define glBlendEquation gl3wProcs.gl.BlendEquation
|
||||
#define glBlendEquationSeparate gl3wProcs.gl.BlendEquationSeparate
|
||||
#define glBlendFuncSeparate gl3wProcs.gl.BlendFuncSeparate
|
||||
#define glBufferData gl3wProcs.gl.BufferData
|
||||
#define glClear gl3wProcs.gl.Clear
|
||||
#define glClearColor gl3wProcs.gl.ClearColor
|
||||
#define glClipControl gl3wProcs.gl.ClipControl
|
||||
#define glCompileShader gl3wProcs.gl.CompileShader
|
||||
#define glCreateProgram gl3wProcs.gl.CreateProgram
|
||||
#define glCreateShader gl3wProcs.gl.CreateShader
|
||||
#define glDeleteBuffers gl3wProcs.gl.DeleteBuffers
|
||||
#define glDeleteProgram gl3wProcs.gl.DeleteProgram
|
||||
#define glDeleteShader gl3wProcs.gl.DeleteShader
|
||||
#define glDeleteTextures gl3wProcs.gl.DeleteTextures
|
||||
#define glDeleteVertexArrays gl3wProcs.gl.DeleteVertexArrays
|
||||
#define glDetachShader gl3wProcs.gl.DetachShader
|
||||
#define glDisable gl3wProcs.gl.Disable
|
||||
#define glDrawElements gl3wProcs.gl.DrawElements
|
||||
#define glDrawElementsBaseVertex gl3wProcs.gl.DrawElementsBaseVertex
|
||||
#define glEnable gl3wProcs.gl.Enable
|
||||
#define glEnableVertexAttribArray gl3wProcs.gl.EnableVertexAttribArray
|
||||
#define glGenBuffers gl3wProcs.gl.GenBuffers
|
||||
#define glGenTextures gl3wProcs.gl.GenTextures
|
||||
#define glGenVertexArrays gl3wProcs.gl.GenVertexArrays
|
||||
#define glGetAttribLocation gl3wProcs.gl.GetAttribLocation
|
||||
#define glGetIntegerv gl3wProcs.gl.GetIntegerv
|
||||
#define glGetProgramInfoLog gl3wProcs.gl.GetProgramInfoLog
|
||||
#define glGetProgramiv gl3wProcs.gl.GetProgramiv
|
||||
#define glGetShaderInfoLog gl3wProcs.gl.GetShaderInfoLog
|
||||
#define glGetShaderiv gl3wProcs.gl.GetShaderiv
|
||||
#define glGetString gl3wProcs.gl.GetString
|
||||
#define glGetStringi gl3wProcs.gl.GetStringi
|
||||
#define glGetUniformLocation gl3wProcs.gl.GetUniformLocation
|
||||
#define glIsEnabled gl3wProcs.gl.IsEnabled
|
||||
#define glLinkProgram gl3wProcs.gl.LinkProgram
|
||||
#define glPixelStorei gl3wProcs.gl.PixelStorei
|
||||
#define glPolygonMode gl3wProcs.gl.PolygonMode
|
||||
#define glScissor gl3wProcs.gl.Scissor
|
||||
#define glShaderSource gl3wProcs.gl.ShaderSource
|
||||
#define glTexImage2D gl3wProcs.gl.TexImage2D
|
||||
#define glTexParameteri gl3wProcs.gl.TexParameteri
|
||||
#define glUniform1i gl3wProcs.gl.Uniform1i
|
||||
#define glUniformMatrix4fv gl3wProcs.gl.UniformMatrix4fv
|
||||
#define glUseProgram gl3wProcs.gl.UseProgram
|
||||
#define glVertexAttribPointer gl3wProcs.gl.VertexAttribPointer
|
||||
#define glViewport gl3wProcs.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 < 3)
|
||||
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 < 3)
|
||||
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",
|
||||
"glClear",
|
||||
"glClearColor",
|
||||
"glClipControl",
|
||||
"glCompileShader",
|
||||
"glCreateProgram",
|
||||
"glCreateShader",
|
||||
"glDeleteBuffers",
|
||||
"glDeleteProgram",
|
||||
"glDeleteShader",
|
||||
"glDeleteTextures",
|
||||
"glDeleteVertexArrays",
|
||||
"glDetachShader",
|
||||
"glDisable",
|
||||
"glDrawElements",
|
||||
"glDrawElementsBaseVertex",
|
||||
"glEnable",
|
||||
"glEnableVertexAttribArray",
|
||||
"glGenBuffers",
|
||||
"glGenTextures",
|
||||
"glGenVertexArrays",
|
||||
"glGetAttribLocation",
|
||||
"glGetIntegerv",
|
||||
"glGetProgramInfoLog",
|
||||
"glGetProgramiv",
|
||||
"glGetShaderInfoLog",
|
||||
"glGetShaderiv",
|
||||
"glGetString",
|
||||
"glGetStringi",
|
||||
"glGetUniformLocation",
|
||||
"glIsEnabled",
|
||||
"glLinkProgram",
|
||||
"glPixelStorei",
|
||||
"glPolygonMode",
|
||||
"glScissor",
|
||||
"glShaderSource",
|
||||
"glTexImage2D",
|
||||
"glTexParameteri",
|
||||
"glUniform1i",
|
||||
"glUniformMatrix4fv",
|
||||
"glUseProgram",
|
||||
"glVertexAttribPointer",
|
||||
"glViewport",
|
||||
};
|
||||
|
||||
GL3W_API union GL3WProcs gl3wProcs;
|
||||
|
||||
static void load_procs(GL3WGetProcAddressProc proc)
|
||||
{
|
||||
size_t i;
|
||||
for (i = 0; i < ARRAY_SIZE(proc_names); i++)
|
||||
gl3wProcs.ptr[i] = proc(proc_names[i]);
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue