glextensions.h Example File

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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 Q_OS_MAC # ifndef APIENTRYP # ifdef APIENTRY # define APIENTRYP APIENTRY * # else # define APIENTRY # define APIENTRYP * # endif # endif #else # define APIENTRY # define APIENTRYP * #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

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