bool FOpenGLDrv::Initialize() { if (!InitializeGlew()) { return false; } return true; }
// // Load GL extensions // unsigned int loadGLextensions() { unsigned int caps = 0; // as per elio glextensions #ifdef USE_GLEW InitializeGlew(); // probably needs failure check #endif // Check for FBO extensions first - no use continuing without them if(!loadFBOextensions()) { printf(" loadFBOextensions fail\n"); return 0; } caps |= GLEXT_SUPPORT_FBO; // Load PBO extension and FBO blit extension if(loadBLITextension()) { caps |= GLEXT_SUPPORT_FBO_BLIT; } if(loadSwapExtensions()) { caps |= GLEXT_SUPPORT_SWAP; } if(loadPBOextensions()) { caps |= GLEXT_SUPPORT_PBO; } // Find out whether bgra extensions are supported at compile and runtime #ifdef GL_EXT_bgra // // "isExtensionSupported" code yet to be fully tested for // various compilers, operating systems and environments. // Activate this code if you are confident that it works OK. // // if(isExtensionSupported("GL_EXT_bgra")) { caps |= GLEXT_SUPPORT_BGRA; // } #endif // Load wgl interop extensions - not needed for memoryshare if (loadInteropExtensions()) { caps |= GLEXT_SUPPORT_NVINTEROP; } return caps; }
int GraphicsEngine::Initialize() { GraphicsResourceManager::CreateInstance(); int result = m_WindowManager.InitWindow(SCREEN_SIZE_X, SCREEN_SIZE_Y); if (result != -1) result = InitializeGlew(); if (result != -1) result = InitializeOpenGL(); if (result != -1) result = InitializeLightGridCompute(); return result; }
// // Load GL extensions // unsigned int loadGLextensions() { unsigned int caps = 0; // as per elio glextensions #ifdef USE_GLEW InitializeGlew(); // probably needs failure check #endif // Check for FBO extensions first - no use continuing without them if(!loadFBOextensions()) { printf(" loadFBOextensions fail\n"); return 0; } // Load wgl interop extensions - return if fail if (!loadInteropExtensions()) { // MessageBoxA(NULL, "Cannot load OpenGL interop extensions", "ERROR", MB_OK); printf(" loadInteropExtensions fail\n"); return 0; } caps |= GLEXT_SUPPORT_NVINTEROP; caps |= GLEXT_SUPPORT_FBO; // Load PBO extension and FBO blit extension if(loadBLITextension()) { caps |= GLEXT_SUPPORT_FBO_BLIT; } if(loadSwapExtensions()) { caps |= GLEXT_SUPPORT_SWAP; } if(loadPBOextensions()) { caps |= GLEXT_SUPPORT_PBO; } return caps; }