Merge pull request #19207 from hrydgard/sdl-avoid-spinning

SDL: Switch to SDL_WaitEventTimeout instead of SDL_PollEvent when possible.
hrydgard · May 28, 2024 · a851e82 · a851e82
2 parents 7d80f83 + 2c50f82
commit a851e82
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/SDL/SDLMain.cpp b/SDL/SDLMain.cpp
@@ -1420,10 +1420,12 @@ int main(int argc, char *argv[]) {
 	bool waitOnExit = g_Config.iGPUBackend == (int)GPUBackend::OPENGL;
 
 	if (!mainThreadIsRender) {
-		// We should only be a message pump
+		// Vulkan mode uses this.
+		// We should only be a message pump. This allows for lower latency
+		// input events, and so on.
 		while (true) {
 			SDL_Event event;
-			while (SDL_PollEvent(&event)) {
+			while (SDL_WaitEventTimeout(&event, 100)) {
 				ProcessSDLEvent(window, event, &inputTracker);
 			}
 			if (g_QuitRequested || g_RestartRequested)