SF: Optimize layer history in scheduler
Register layers with LayerHistory by storing a weak pointer rather than
allocating a LayerHandle. Query layer visibility when needed instead of
synchronizing it to LayerInfo whenever Layer::isVisible is called. Store
active/inactive layers in contiguous memory instead of two hash maps for
cache efficiency, and minimal allocation and run time of operations like
clearing history. Remove redundant ref-counting, locking, and frequency-
period conversion in LayerInfo. Avoid sleeping in unit tests.
This is also prework for per-display layer history.
Bug: 130554049
Bug: 134772048
Test: go/wm-smoke with debug.sf.layer_history_trace
Test: C2/F2 test cases from spreadsheet
Test: LayerHistoryTest with new test cases
Change-Id: Ibfcfe46cd76ebd93b916d4a0c737a19e837d4ff1
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 057669b..1acb2da 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -5505,6 +5505,16 @@
return nullptr;
}
+void SurfaceFlinger::onLayerCreated(Layer* layer) {
+ mNumLayers++;
+ mScheduler->registerLayer(layer);
+}
+
+void SurfaceFlinger::onLayerDestroyed(Layer* layer) {
+ mNumLayers--;
+ mOffscreenLayers.erase(layer);
+}
+
void SurfaceFlinger::bufferErased(const client_cache_t& clientCacheId) {
getRenderEngine().unbindExternalTextureBuffer(clientCacheId.id);
}