Core: Allow video playback to be non-blocking

src/feature/video-logger.c

@@ -168,9 +168,9 @@ void mVideoLoggerRendererFlush(struct mVideoLogger* logger) {
 	logger->writeData(logger, &dirty, sizeof(dirty));
 }
 
-bool mVideoLoggerRendererRun(struct mVideoLogger* logger) {
+bool mVideoLoggerRendererRun(struct mVideoLogger* logger, bool block) {
 	struct mVideoLoggerDirtyInfo item = {0};
-	while (logger->readData(logger, &item, sizeof(item), false)) {
+	while (logger->readData(logger, &item, sizeof(item), block)) {
 		switch (item.type) {
 		case DIRTY_REGISTER:
 		case DIRTY_PALETTE:
@@ -186,7 +186,7 @@ bool mVideoLoggerRendererRun(struct mVideoLogger* logger) {
 			return false;
 		}
 	}
-	return false;
+	return !block;
 }
 
 static bool _writeData(struct mVideoLogger* logger, const void* data, size_t length) {

src/feature/video-logger.h

@@ -107,7 +107,7 @@ void mVideoLoggerRendererWriteOAM(struct mVideoLogger* logger, uint32_t address,
 void mVideoLoggerRendererDrawScanline(struct mVideoLogger* logger, int y);
 void mVideoLoggerRendererFlush(struct mVideoLogger* logger);
 
-bool mVideoLoggerRendererRun(struct mVideoLogger* logger);
+bool mVideoLoggerRendererRun(struct mVideoLogger* logger, bool block);
 
 struct mCore;
 struct mVideoLogContext* mVideoLoggerCreate(struct mCore* core);

src/gba/core.c

@@ -769,7 +769,7 @@ static void _GBAVLPStartFrameCallback(void *context) {
 	struct GBACore* gbacore = (struct GBACore*) core;
 	struct GBA* gba = core->board;
 
-	if (!mVideoLoggerRendererRun(&gbacore->logProxy.logger)) {
+	if (!mVideoLoggerRendererRun(&gbacore->logProxy.logger, true)) {
 		GBAVideoProxyRendererUnshim(&gba->video, &gbacore->logProxy);
 		gbacore->logProxy.logger.vf->seek(gbacore->logProxy.logger.vf, 0, SEEK_SET);
 		core->loadState(core, gbacore->logContext->initialState);

src/gba/renderers/thread-proxy.c

@@ -174,7 +174,7 @@ static THREAD_ENTRY _proxyThread(void* renderer) {
 		}
 		proxyRenderer->threadState = PROXY_THREAD_BUSY;
 		MutexUnlock(&proxyRenderer->mutex);
-		if (!mVideoLoggerRendererRun(&proxyRenderer->d.logger)) {
+		if (!mVideoLoggerRendererRun(&proxyRenderer->d.logger, false)) {
 			// FIFO was corrupted
 			proxyRenderer->threadState = PROXY_THREAD_STOPPED;
 			mLOG(GBA_VIDEO, ERROR, "Proxy thread queue got corrupted!");