SurfaceFlinger: fix early latching of buffers
Use the FrameTimeline::SurfaceFrame predicted present time
to avoid latching a buffer too early (i.e. before the time
SurfaceFlinger planned to latch this buffer when the app requested
a vsync callback).
Bug: 169901895
Test: expand notification shade and observe systrace
Change-Id: I823546992c89f88c0c29b839ce21c79ff1ffcfbd
diff --git a/services/surfaceflinger/BufferStateLayer.h b/services/surfaceflinger/BufferStateLayer.h
index 734f647..6414e6b 100644
--- a/services/surfaceflinger/BufferStateLayer.h
+++ b/services/surfaceflinger/BufferStateLayer.h
@@ -152,6 +152,8 @@
bool bufferNeedsFiltering() const override;
+ nsecs_t nextPredictedPresentTime() const override;
+
static const std::array<float, 16> IDENTITY_MATRIX;
std::unique_ptr<renderengine::Image> mTextureImage;