[SurfaceFlinger] add getDisplayedContentSamplingAttributes i/f
Add interface to ISurfaceComposer that can query the
graphics.composer for querying the displayed content sampling
engine's supported attributes.
Bug: 116028618
Test: Boot
Test: ran test client against prototype, see attributes reported
Test: Ran new test './libgui_test --gtest_filter="DisplayedContentSamp*"'
Test: on hwc with and without new function hook.
Change-Id: Ie4bebd98d134e63a9f3e21f79ae519a1fe8055b0
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index 2f57907..1e5f971 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
@@ -125,6 +125,11 @@
mat4 getDataspaceSaturationMatrix(DisplayId displayId, ui::Dataspace dataspace);
+ // Returns the attributes of the color sampling engine.
+ status_t getDisplayedContentSamplingAttributes(DisplayId displayId, ui::PixelFormat* outFormat,
+ ui::Dataspace* outDataspace,
+ uint8_t* outComponentMask);
+
// Events handling ---------------------------------------------------------
// Returns stable display ID (and display name on connection of new or previously disconnected