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Init: Check for OpenGL 2.0 and destroy context on error

This commit is contained in:
Jonas Kulla 2013-10-15 19:35:03 +02:00
parent 26bc4842c0
commit bf5e80dd6a
1 changed files with 21 additions and 11 deletions
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32
src/main.cpp
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@ -50,6 +50,14 @@ static const char *reqExt[] =
0
};
static void
rgssThreadError(RGSSThreadData *rtData, const QByteArray &msg)
{
rtData->rgssErrorMsg = msg;
rtData->ethread->requestTerminate();
rtData->rqTermAck = true;
}
int rgssThreadFun(void *userdata)
{
RGSSThreadData *threadData = static_cast<RGSSThreadData*>(userdata);
@ -67,19 +75,14 @@ int rgssThreadFun(void *userdata)
if (!ctx)
{
threadData->rgssErrorMsg =
QByteArray("Error creating context: ") + SDL_GetError();
threadData->ethread->requestTerminate();
threadData->rqTermAck = true;
rgssThreadError(threadData, QByteArray("Error creating context: ") + SDL_GetError());
return 0;
}
if (glewInit() != GLEW_OK)
{
threadData->rgssErrorMsg = "Error initializing glew";
rgssThreadError(threadData, "Error initializing glew");
SDL_GL_DeleteContext(ctx);
threadData->ethread->requestTerminate();
threadData->rqTermAck = true;
return 0;
}
@ -87,15 +90,22 @@ int rgssThreadFun(void *userdata)
glClear(GL_COLOR_BUFFER_BIT);
SDL_GL_SwapWindow(win);
/* Check for required GL version */
if (!GLEW_VERSION_2_0)
{
rgssThreadError(threadData, "At least OpenGL 2.0 is required");
SDL_GL_DeleteContext(ctx);
return 0;
}
/* Check for required GL extensions */
for (int i = 0; reqExt[i]; ++i)
{
if (!glewIsSupported(reqExt[i]))
{
threadData->rgssErrorMsg =
QByteArray("Required GL extension \"") + reqExt[i] + "\" not present";
threadData->ethread->requestTerminate();
threadData->rqTermAck = true;
rgssThreadError(threadData, QByteArray("Required GL extension \"")
+ reqExt[i] + "\" not present");
SDL_GL_DeleteContext(ctx);
return 0;
}
}