Add CachingHint into SurfaceFlinger
Some system layers may need to be excluded from surfaceflinger caching
for a variety of reasons, including power or image quality
considerations. This provides a mechanism for those system layers to
never be cached on the GPU.
Bug: 259311918
Test: libcompositionengine_test
Test: run test app and inspect planner state
Change-Id: I35418ad5a41cb2546e3b27b0af290bf3c31a0180
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index c508917..001d475 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1729,6 +1729,20 @@
return *this;
}
+SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setCachingHint(
+ const sp<SurfaceControl>& sc, gui::CachingHint cachingHint) {
+ layer_state_t* s = getLayerState(sc);
+ if (!s) {
+ mStatus = BAD_INDEX;
+ return *this;
+ }
+ s->what |= layer_state_t::eCachingHintChanged;
+ s->cachingHint = cachingHint;
+
+ registerSurfaceControlForCallback(sc);
+ return *this;
+}
+
SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setHdrMetadata(
const sp<SurfaceControl>& sc, const HdrMetadata& hdrMetadata) {
layer_state_t* s = getLayerState(sc);