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Enable double buffering on SDL backends that support it

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This commit is contained in:
Cameron Gutman 2020-02-09 11:54:09 -08:00
parent b080f7a81c
commit fa3317f6cd
1 changed files with 6 additions and 0 deletions
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6
app/main.cpp
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@ -347,6 +347,12 @@ int main(int argc, char *argv[])
// initializing the SDL video subsystem to have any effect.
SDL_SetHint(SDL_HINT_VIDEO_ALLOW_SCREENSAVER, "1");
// For SDL backends that support it, use double buffering instead of triple buffering
// to save a frame of latency. This doesn't matter for MMAL or DRM renderers since they
// are drawing directly to the screen without involving SDL, but it may matter for other
// future KMSDRM platforms that use SDL for rendering.
SDL_SetHint(SDL_HINT_VIDEO_DOUBLE_BUFFER, "1");
if (SDL_InitSubSystem(SDL_INIT_TIMER) != 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"SDL_InitSubSystem(SDL_INIT_TIMER) failed: %s",