glextensions.cpp Example File

graphicsview/boxes/glextensions.cpp
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#include "glextensions.h" #define RESOLVE_GL_FUNC(f) ok &= bool((f = (_gl##f) context->getProcAddress(QLatin1String("gl" #f)))); bool GLExtensionFunctions::resolve(const QGLContext *context) { bool ok = true; RESOLVE_GL_FUNC(GenFramebuffersEXT) RESOLVE_GL_FUNC(GenRenderbuffersEXT) RESOLVE_GL_FUNC(BindRenderbufferEXT) RESOLVE_GL_FUNC(RenderbufferStorageEXT) RESOLVE_GL_FUNC(DeleteFramebuffersEXT) RESOLVE_GL_FUNC(DeleteRenderbuffersEXT) RESOLVE_GL_FUNC(BindFramebufferEXT) RESOLVE_GL_FUNC(FramebufferTexture2DEXT) RESOLVE_GL_FUNC(FramebufferRenderbufferEXT) RESOLVE_GL_FUNC(CheckFramebufferStatusEXT) RESOLVE_GL_FUNC(ActiveTexture) RESOLVE_GL_FUNC(TexImage3D) RESOLVE_GL_FUNC(GenBuffers) RESOLVE_GL_FUNC(BindBuffer) RESOLVE_GL_FUNC(BufferData) RESOLVE_GL_FUNC(DeleteBuffers) RESOLVE_GL_FUNC(MapBuffer) RESOLVE_GL_FUNC(UnmapBuffer) return ok; } bool GLExtensionFunctions::fboSupported() { return GenFramebuffersEXT && GenRenderbuffersEXT && BindRenderbufferEXT && RenderbufferStorageEXT && DeleteFramebuffersEXT && DeleteRenderbuffersEXT && BindFramebufferEXT && FramebufferTexture2DEXT && FramebufferRenderbufferEXT && CheckFramebufferStatusEXT; } bool GLExtensionFunctions::openGL15Supported() { return ActiveTexture && TexImage3D && GenBuffers && BindBuffer && BufferData && DeleteBuffers && MapBuffer && UnmapBuffer; } #undef RESOLVE_GL_FUNC