Plumb display brightness nits to composer hal.
OEM feedback was that the display brightness in nits should be known to
the Hardware Composer for correct tone-mapping behavior by the DPU.
Inteperpolating the display brightness curve that's defined in display
config files is possible, but it would require the vendor to re-implement
DisplayManager logic for interpolating a spline curve.
Bug: 220396224
Test: builds, boots
Change-Id: I28d936c118bed1184d4f742478c8862f9e0aba95
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.h b/services/surfaceflinger/DisplayHardware/HWComposer.h
index 5e2ab78..7dc10ea 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.h
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.h
@@ -196,7 +196,7 @@
// Sets the brightness of a display.
virtual std::future<status_t> setDisplayBrightness(
- PhysicalDisplayId, float brightness,
+ PhysicalDisplayId, float brightness, float brightnessNits,
const Hwc2::Composer::DisplayBrightnessOptions&) = 0;
// Events handling ---------------------------------------------------------
@@ -373,7 +373,7 @@
status_t getDisplayedContentSample(HalDisplayId, uint64_t maxFrames, uint64_t timestamp,
DisplayedFrameStats* outStats) override;
std::future<status_t> setDisplayBrightness(
- PhysicalDisplayId, float brightness,
+ PhysicalDisplayId, float brightness, float brightnessNits,
const Hwc2::Composer::DisplayBrightnessOptions&) override;
// Events handling ---------------------------------------------------------