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Performance chasing
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This commit is contained in:
Aiden
2026-05-11 23:10:45 +10:00
parent c5cead6003
commit a434a88108
18 changed files with 1115 additions and 82 deletions
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35
apps/LoopThroughWithOpenGLCompositing/gl/pipeline/OpenGLRenderPipeline.h
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@@ -36,6 +36,13 @@ public:
bool RenderFrame(const RenderPipelineFrameContext& context, VideoIOOutputFrame& outputFrame);
private:
enum class OutputReadbackMode
{
AsyncPbo,
Synchronous,
CachedOnly
};
struct AsyncReadbackSlot
{
GLuint pixelPackBuffer = 0;
@@ -44,15 +51,34 @@ private:
bool inFlight = false;
};
struct OutputReadbackTiming
{
double fenceWaitMilliseconds = 0.0;
double mapMilliseconds = 0.0;
double copyMilliseconds = 0.0;
double cachedCopyMilliseconds = 0.0;
double asyncQueueMilliseconds = 0.0;
double asyncQueueBufferMilliseconds = 0.0;
double asyncQueueSetupMilliseconds = 0.0;
double asyncQueueReadPixelsMilliseconds = 0.0;
double asyncQueueFenceMilliseconds = 0.0;
double syncReadMilliseconds = 0.0;
bool asyncReadbackMissed = false;
bool cachedFallbackUsed = false;
bool syncFallbackUsed = false;
};
bool EnsureAsyncReadbackBuffers(std::size_t requiredBytes);
void ResetAsyncReadbackState();
void FlushAsyncReadbackPipeline();
void QueueAsyncReadback(const VideoIOState& state);
bool TryConsumeAsyncReadback(VideoIOOutputFrame& outputFrame, GLuint64 timeoutNanoseconds);
bool QueueAsyncReadback(const VideoIOState& state, OutputReadbackTiming& timing);
bool TryConsumeAsyncReadback(VideoIOOutputFrame& outputFrame, GLuint64 timeoutNanoseconds, OutputReadbackTiming& timing);
void CacheOutputFrame(const VideoIOOutputFrame& outputFrame);
void ReadOutputFrameSynchronously(const VideoIOState& state, void* destinationBytes);
bool TryCopyCachedOutputFrame(VideoIOOutputFrame& outputFrame, OutputReadbackTiming& timing) const;
void ReadOutputFrameSynchronously(const VideoIOState& state, void* destinationBytes, OutputReadbackTiming& timing);
void PackOutputFor10Bit(const VideoIOState& state);
void ReadOutputFrame(const VideoIOState& state, VideoIOOutputFrame& outputFrame);
OutputReadbackTiming ReadOutputFrame(const VideoIOState& state, VideoIOOutputFrame& outputFrame);
static OutputReadbackMode ReadOutputReadbackModeFromEnvironment();
OpenGLRenderer& mRenderer;
RuntimeSnapshotProvider& mRuntimeSnapshotProvider;
@@ -60,6 +86,7 @@ private:
RenderEffectCallback mRenderEffect;
OutputReadyCallback mOutputReady;
PaintCallback mPaint;
OutputReadbackMode mOutputReadbackMode = OutputReadbackMode::AsyncPbo;
std::array<AsyncReadbackSlot, 3> mAsyncReadbackSlots;
std::size_t mAsyncReadbackWriteIndex = 0;
std::size_t mAsyncReadbackReadIndex = 0;