Support toggling layer caching at runtime
The use-case for this is dynamically enabling and disabling layer
caching when a bad layer state is encountered that is difficult to
reproduce.
Bug: 187448777
Test: adb shell service call SurfaceFlinger 1040 i32 1
Test: libcompositionengine_test
Change-Id: Id441a0894ff5a4c654db9fd706ceb1c0d1c343f0
Merged-In: Id441a0894ff5a4c654db9fd706ceb1c0d1c343f0
diff --git a/services/surfaceflinger/CompositionEngine/src/Output.cpp b/services/surfaceflinger/CompositionEngine/src/Output.cpp
index 297e687..796fe7d 100644
--- a/services/surfaceflinger/CompositionEngine/src/Output.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Output.cpp
@@ -55,18 +55,6 @@
namespace impl {
-Output::Output() {
- const bool enableLayerCaching = [] {
- const bool enable =
- android::sysprop::SurfaceFlingerProperties::enable_layer_caching().value_or(false);
- return base::GetBoolProperty(std::string("debug.sf.enable_layer_caching"), enable);
- }();
-
- if (enableLayerCaching) {
- mPlanner = std::make_unique<planner::Planner>();
- }
-}
-
namespace {
template <typename T>
@@ -135,6 +123,21 @@
dirtyEntireOutput();
}
+void Output::setLayerCachingEnabled(bool enabled) {
+ if (enabled == (mPlanner != nullptr)) {
+ return;
+ }
+
+ if (enabled) {
+ mPlanner = std::make_unique<planner::Planner>();
+ if (mRenderSurface) {
+ mPlanner->setDisplaySize(mRenderSurface->getSize());
+ }
+ } else {
+ mPlanner.reset();
+ }
+}
+
void Output::setProjection(ui::Rotation orientation, const Rect& layerStackSpaceRect,
const Rect& orientedDisplaySpaceRect) {
auto& outputState = editState();