Early wake-up for transitions (1/2)
On some devices it's very likely that we fall into GL comp during
app transitions. However, SF offsets are chosen in a way such that
the time to finish a frame is just too tight to be completely jank
free when hitting GL composition in SurfaceFlinger. Thus, we
introduce the concept of a separate early offset, and wakeup
SurfaceFlinger at that time if we think that hitting GL comp is
likely, or we already hit GL comp in the last frame.
Test: Open app, check vsync offsets in systrace
Test: Open many dialogs/apps to fall into GPU comp.
Bug: 75985430
Change-Id: Ie17e30c4575359fa11bb8912f68dcafe3e569ddb
diff --git a/services/surfaceflinger/BufferLayerConsumer.cpp b/services/surfaceflinger/BufferLayerConsumer.cpp
index 6b4f5db..87333d0 100644
--- a/services/surfaceflinger/BufferLayerConsumer.cpp
+++ b/services/surfaceflinger/BufferLayerConsumer.cpp
@@ -356,6 +356,7 @@
}
status_t BufferLayerConsumer::bindTextureImageLocked() {
+ ATRACE_CALL();
mRE.checkErrors();
if (mCurrentTexture == BufferQueue::INVALID_BUFFER_SLOT && mCurrentTextureImage == nullptr) {