8000 SDL/test/testgl2.c at SDL2 · NoxWings/SDL · GitHub
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testgl2.c

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/* Check for events */
++frames;
while (SDL_PollEvent(&event)) {
SDLTest_CommonEvent(state, &event, &done);
if (event.type == SDL_KEYDOWN) {
if (event.key.keysym.sym == SDLK_o) {
swap_interval--;
update_swap_interval = SDL_TRUE;
} else if (event.key.keysym.sym == SDLK_p) {
swap_interval++;
update_swap_interval = SDL_TRUE;
}
}
}
if (update_swap_interval) {
SDL_Log("Swap interval to be set to %d\n", swap_interval);
}
for (i = 0; i < state->num_windows; ++i) {
int w, h;
if (state->windows[i] == NULL) {
continue;
}
SDL_GL_MakeCurrent(state->windows[i], context);
if (update_swap_interval) {
SDL_GL_SetSwapInterval(swap_interval);
LogSwapInterval();
}
SDL_GL_GetDrawableSize(state->windows[i], &w, &h);
ctx.glViewport(0, 0, w, h);
Render();
SDL_GL_SwapWindow(state->windows[i]);
}
}
/* Print out some timing information */
now = SDL_GetTicks();
if (now > then) {
SDL_Log("%2.2f frames per second\n",
((double)frames * 1000) / (now - then));
}
quit(0);
return 0;
}
#else /* HAVE_OPENGL */
int main(int argc, char *argv[])
{
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "No OpenGL support on this system\n");
return 1;
}
#endif /* HAVE_OPENGL */
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