| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the demonstration applications of the Qt Toolkit. |
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| ** $QT_BEGIN_LICENSE:BSD$ |
| ** Commercial License Usage |
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| ** BSD License Usage |
| ** Alternatively, you may use this file under the terms of the BSD license |
| ** as follows: |
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| ****************************************************************************/ |
| |
| #ifndef GLEXTENSIONS_H |
| #define GLEXTENSIONS_H |
| |
| #include <QtOpenGL> |
| |
| /* |
| Functions resolved: |
| |
| glGenFramebuffersEXT |
| glGenRenderbuffersEXT |
| glBindRenderbufferEXT |
| glRenderbufferStorageEXT |
| glDeleteFramebuffersEXT |
| glDeleteRenderbuffersEXT |
| glBindFramebufferEXT |
| glFramebufferTexture2DEXT |
| glFramebufferRenderbufferEXT |
| glCheckFramebufferStatusEXT |
| |
| glActiveTexture |
| glTexImage3D |
| |
| glGenBuffers |
| glBindBuffer |
| glBufferData |
| glDeleteBuffers |
| glMapBuffer |
| glUnmapBuffer |
| */ |
| |
| #ifndef APIENTRY |
| # define APIENTRY |
| #endif |
| #ifndef APIENTRYP |
| # define APIENTRYP APIENTRY * |
| #endif |
| |
| #ifndef GL_VERSION_1_2 |
| #define GL_TEXTURE_3D 0x806F |
| #define GL_TEXTURE_WRAP_R 0x8072 |
| #define GL_CLAMP_TO_EDGE 0x812F |
| #define GL_BGRA 0x80E1 |
| #endif |
| |
| #ifndef GL_VERSION_1_3 |
| #define GL_TEXTURE0 0x84C0 |
| #define GL_TEXTURE1 0x84C1 |
| #define GL_TEXTURE2 0x84C2 |
| #define GL_TEXTURE_CUBE_MAP 0x8513 |
| #define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515 |
| //#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516 |
| //#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517 |
| //#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518 |
| //#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519 |
| //#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A |
| #endif |
| |
| #ifndef GL_ARB_vertex_buffer_object |
| typedef ptrdiff_t GLsizeiptrARB; |
| #endif |
| |
| #ifndef GL_VERSION_1_5 |
| #define GL_ARRAY_BUFFER 0x8892 |
| #define GL_ELEMENT_ARRAY_BUFFER 0x8893 |
| #define GL_READ_WRITE 0x88BA |
| #define GL_STATIC_DRAW 0x88E4 |
| #endif |
| |
| #ifndef GL_EXT_framebuffer_object |
| #define GL_RENDERBUFFER_EXT 0x8D41 |
| #define GL_FRAMEBUFFER_EXT 0x8D40 |
| #define GL_FRAMEBUFFER_COMPLETE_EXT 0x8CD5 |
| #define GL_COLOR_ATTACHMENT0_EXT 0x8CE0 |
| #define GL_DEPTH_ATTACHMENT_EXT 0x8D00 |
| #endif |
| |
| typedef void (APIENTRY *_glGenFramebuffersEXT) (GLsizei, GLuint *); |
| typedef void (APIENTRY *_glGenRenderbuffersEXT) (GLsizei, GLuint *); |
| typedef void (APIENTRY *_glBindRenderbufferEXT) (GLenum, GLuint); |
| typedef void (APIENTRY *_glRenderbufferStorageEXT) (GLenum, GLenum, GLsizei, GLsizei); |
| typedef void (APIENTRY *_glDeleteFramebuffersEXT) (GLsizei, const GLuint*); |
| typedef void (APIENTRY *_glDeleteRenderbuffersEXT) (GLsizei, const GLuint*); |
| typedef void (APIENTRY *_glBindFramebufferEXT) (GLenum, GLuint); |
| typedef void (APIENTRY *_glFramebufferTexture2DEXT) (GLenum, GLenum, GLenum, GLuint, GLint); |
| typedef void (APIENTRY *_glFramebufferRenderbufferEXT) (GLenum, GLenum, GLenum, GLuint); |
| typedef GLenum (APIENTRY *_glCheckFramebufferStatusEXT) (GLenum); |
| |
| typedef void (APIENTRY *_glActiveTexture) (GLenum); |
| typedef void (APIENTRY *_glTexImage3D) (GLenum, GLint, GLenum, GLsizei, GLsizei, GLsizei, GLint, GLenum, GLenum, const GLvoid *); |
| |
| typedef void (APIENTRY *_glGenBuffers) (GLsizei, GLuint *); |
| typedef void (APIENTRY *_glBindBuffer) (GLenum, GLuint); |
| typedef void (APIENTRY *_glBufferData) (GLenum, GLsizeiptrARB, const GLvoid *, GLenum); |
| typedef void (APIENTRY *_glDeleteBuffers) (GLsizei, const GLuint *); |
| typedef void *(APIENTRY *_glMapBuffer) (GLenum, GLenum); |
| typedef GLboolean (APIENTRY *_glUnmapBuffer) (GLenum); |
| |
| struct GLExtensionFunctions |
| { |
| bool resolve(const QGLContext *context); |
| |
| bool fboSupported(); |
| bool openGL15Supported(); // the rest: multi-texture, 3D-texture, vertex buffer objects |
| |
| _glGenFramebuffersEXT GenFramebuffersEXT; |
| _glGenRenderbuffersEXT GenRenderbuffersEXT; |
| _glBindRenderbufferEXT BindRenderbufferEXT; |
| _glRenderbufferStorageEXT RenderbufferStorageEXT; |
| _glDeleteFramebuffersEXT DeleteFramebuffersEXT; |
| _glDeleteRenderbuffersEXT DeleteRenderbuffersEXT; |
| _glBindFramebufferEXT BindFramebufferEXT; |
| _glFramebufferTexture2DEXT FramebufferTexture2DEXT; |
| _glFramebufferRenderbufferEXT FramebufferRenderbufferEXT; |
| _glCheckFramebufferStatusEXT CheckFramebufferStatusEXT; |
| |
| _glActiveTexture ActiveTexture; |
| _glTexImage3D TexImage3D; |
| |
| _glGenBuffers GenBuffers; |
| _glBindBuffer BindBuffer; |
| _glBufferData BufferData; |
| _glDeleteBuffers DeleteBuffers; |
| _glMapBuffer MapBuffer; |
| _glUnmapBuffer UnmapBuffer; |
| }; |
| |
| inline GLExtensionFunctions &getGLExtensionFunctions() |
| { |
| static GLExtensionFunctions funcs; |
| return funcs; |
| } |
| |
| #define glGenFramebuffersEXT getGLExtensionFunctions().GenFramebuffersEXT |
| #define glGenRenderbuffersEXT getGLExtensionFunctions().GenRenderbuffersEXT |
| #define glBindRenderbufferEXT getGLExtensionFunctions().BindRenderbufferEXT |
| #define glRenderbufferStorageEXT getGLExtensionFunctions().RenderbufferStorageEXT |
| #define glDeleteFramebuffersEXT getGLExtensionFunctions().DeleteFramebuffersEXT |
| #define glDeleteRenderbuffersEXT getGLExtensionFunctions().DeleteRenderbuffersEXT |
| #define glBindFramebufferEXT getGLExtensionFunctions().BindFramebufferEXT |
| #define glFramebufferTexture2DEXT getGLExtensionFunctions().FramebufferTexture2DEXT |
| #define glFramebufferRenderbufferEXT getGLExtensionFunctions().FramebufferRenderbufferEXT |
| #define glCheckFramebufferStatusEXT getGLExtensionFunctions().CheckFramebufferStatusEXT |
| |
| #define glActiveTexture getGLExtensionFunctions().ActiveTexture |
| #define glTexImage3D getGLExtensionFunctions().TexImage3D |
| |
| #define glGenBuffers getGLExtensionFunctions().GenBuffers |
| #define glBindBuffer getGLExtensionFunctions().BindBuffer |
| #define glBufferData getGLExtensionFunctions().BufferData |
| #define glDeleteBuffers getGLExtensionFunctions().DeleteBuffers |
| #define glMapBuffer getGLExtensionFunctions().MapBuffer |
| #define glUnmapBuffer getGLExtensionFunctions().UnmapBuffer |
| |
| #endif |