Core: Video log enhancements

include/mgba/feature/video-logger.h

@@ -104,6 +104,7 @@ void mVideoLoggerAttachChannel(struct mVideoLogger* logger, struct mVideoLogCont
 struct mCore;
 struct mVideoLogContext* mVideoLogContextCreate(struct mCore* core);
 
+void mVideoLogContextSetCompression(struct mVideoLogContext*, bool enable);
 void mVideoLogContextSetOutput(struct mVideoLogContext*, struct VFile*);
 void mVideoLogContextWriteHeader(struct mVideoLogContext*, struct mCore* core);
 

src/feature/video-logger.c

@@ -94,6 +94,7 @@ struct mVideoLogContext {
 	struct mVideoLogChannel channels[mVL_MAX_CHANNELS];
 
 	bool write;
+	bool compression;
 	uint32_t activeChannel;
 	struct VFile* backing;
 };
@@ -465,6 +466,12 @@ struct mVideoLogContext* mVideoLogContextCreate(struct mCore* core) {
 	context->initialStateSize = 0;
 	context->initialState = NULL;
 
+#ifdef USE_ZLIB
+	context->compression = true;
+#else
+	context->compression = false;
+#endif
+
 	if (core) {
 		context->initialStateSize = core->stateSize(core);
 		context->initialState = anonymousMemoryMap(context->initialStateSize);
@@ -482,6 +489,10 @@ void mVideoLogContextSetOutput(struct mVideoLogContext* context, struct VFile* v
 	vf->seek(vf, 0, SEEK_SET);
 }
 
+void mVideoLogContextSetCompression(struct mVideoLogContext* context, bool compression) {
+	context->compression = compression;
+}
+
 void mVideoLogContextWriteHeader(struct mVideoLogContext* context, struct mCore* core) {
 	struct mVideoLogHeader header = { { 0 } };
 	memcpy(header.magic, mVL_MAGIC, sizeof(header.magic));
@@ -499,21 +510,24 @@ void mVideoLogContextWriteHeader(struct mVideoLogContext* context, struct mCore*
 		struct mVLBlockHeader chheader = { 0 };
 		STORE_32LE(mVL_BLOCK_INITIAL_STATE, 0, &chheader.blockType);
 #ifdef USE_ZLIB
-		STORE_32LE(mVL_FLAG_BLOCK_COMPRESSED, 0, &chheader.flags);
+		if (context->compression) {
+			STORE_32LE(mVL_FLAG_BLOCK_COMPRESSED, 0, &chheader.flags);
 
-		struct VFile* vfm = VFileMemChunk(NULL, 0);
-		struct VFile* src = VFileFromConstMemory(context->initialState, context->initialStateSize);
-		_compress(vfm, src);
-		src->close(src);
-		STORE_32LE(vfm->size(vfm), 0, &chheader.length);
-		context->backing->write(context->backing, &chheader, sizeof(chheader));
-		_copyVf(context->backing, vfm);
-		vfm->close(vfm);
-#else
-		STORE_32LE(context->initialStateSize, 0, &chheader.length);
-		context->backing->write(context->backing, &chheader, sizeof(chheader));
-		context->backing->write(context->backing, context->initialState, context->initialStateSize);
+			struct VFile* vfm = VFileMemChunk(NULL, 0);
+			struct VFile* src = VFileFromConstMemory(context->initialState, context->initialStateSize);
+			_compress(vfm, src);
+			src->close(src);
+			STORE_32LE(vfm->size(vfm), 0, &chheader.length);
+			context->backing->write(context->backing, &chheader, sizeof(chheader));
+			_copyVf(context->backing, vfm);
+			vfm->close(vfm);
+		} else
 #endif
+		{
+			STORE_32LE(context->initialStateSize, 0, &chheader.length);
+			context->backing->write(context->backing, &chheader, sizeof(chheader));
+			context->backing->write(context->backing, context->initialState, context->initialStateSize);
+		}
 	}
 
  	size_t i;
@@ -647,9 +661,10 @@ static void _flushBufferCompressed(struct mVideoLogContext* context) {
 
 static void _flushBuffer(struct mVideoLogContext* context) {
 #ifdef USE_ZLIB
-	// TODO: Make optional
-	_flushBufferCompressed(context);
-	return;
+	if (context->compression) {
+		_flushBufferCompressed(context);
+		return;
+	}
 #endif
 
 	struct CircleBuffer* buffer = &context->channels[context->activeChannel].buffer;

src/gb/core.c

@@ -879,9 +879,11 @@ static void _GBCoreStartVideoLog(struct mCore* core, struct mVideoLogContext* co
 static void _GBCoreEndVideoLog(struct mCore* core) {
 	struct GBCore* gbcore = (struct GBCore*) core;
 	struct GB* gb = core->board;
-	GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
-	free(gbcore->proxyRenderer.logger);
-	gbcore->proxyRenderer.logger = NULL;
+	if (gbcore->proxyRenderer.logger) {
+		GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
+		free(gbcore->proxyRenderer.logger);
+		gbcore->proxyRenderer.logger = NULL;
+	}
 }
 #endif
 

src/gba/core.c

@@ -990,9 +990,11 @@ static void _GBACoreStartVideoLog(struct mCore* core, struct mVideoLogContext* c
 static void _GBACoreEndVideoLog(struct mCore* core) {
 	struct GBACore* gbacore = (struct GBACore*) core;
 	struct GBA* gba = core->board;
-	GBAVideoProxyRendererUnshim(&gba->video, &gbacore->proxyRenderer);
-	free(gbacore->proxyRenderer.logger);
-	gbacore->proxyRenderer.logger = NULL;
+	if (gbacore->proxyRenderer.logger) {
+		GBAVideoProxyRendererUnshim(&gba->video, &gbacore->proxyRenderer);
+		free(gbacore->proxyRenderer.logger);
+		gbacore->proxyRenderer.logger = NULL;
+	}
 }
 #endif
 

src/platform/qt/CoreController.cpp

@@ -809,26 +809,39 @@ void CoreController::clearOverride() {
 	m_override.reset();
 }
 
-void CoreController::startVideoLog(const QString& path) {
+void CoreController::startVideoLog(const QString& path, bool compression) {
 	if (m_vl) {
 		return;
 	}
 
+	VFile* vf = VFileDevice::open(path, O_WRONLY | O_CREAT | O_TRUNC);
+	if (!vf) {
+		return;
+	}
+	startVideoLog(vf);
+}
+
+void CoreController::startVideoLog(VFile* vf, bool compression) {
+	if (m_vl || !vf) {
+		return;
+	}
+
 	Interrupter interrupter(this);
 	m_vl = mVideoLogContextCreate(m_threadContext.core);
-	m_vlVf = VFileDevice::open(path, O_WRONLY | O_CREAT | O_TRUNC);
+	m_vlVf = vf;
 	mVideoLogContextSetOutput(m_vl, m_vlVf);
+	mVideoLogContextSetCompression(m_vl, compression);
 	mVideoLogContextWriteHeader(m_vl, m_threadContext.core);
 }
 
-void CoreController::endVideoLog() {
+void CoreController::endVideoLog(bool closeVf) {
 	if (!m_vl) {
 		return;
 	}
 
 	Interrupter interrupter(this);
 	mVideoLogContextDestroy(m_threadContext.core, m_vl);
-	if (m_vlVf) {
+	if (m_vlVf && closeVf) {
 		m_vlVf->close(m_vlVf);
 		m_vlVf = nullptr;
 	}

src/platform/qt/CoreController.h

@@ -161,8 +161,9 @@ public slots:
 
 	void clearOverride();
 
-	void startVideoLog(const QString& path);
-	void endVideoLog();
+	void startVideoLog(const QString& path, bool compression = true);
+	void startVideoLog(VFile* vf, bool compression = true);
+	void endVideoLog(bool closeVf = true);
 
 	void setFramebufferHandle(int fb);