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;
}
