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/AidlComposerHal.h b/services/surfaceflinger/DisplayHardware/AidlComposerHal.h
index 0099024..18d2242 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.h
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.h
@@ -183,7 +183,7 @@
Error setLayerPerFrameMetadataBlobs(
Display display, Layer layer,
const std::vector<IComposerClient::PerFrameMetadataBlob>& metadata) override;
- Error setDisplayBrightness(Display display, float brightness,
+ Error setDisplayBrightness(Display display, float brightness, float brightnessNits,
const DisplayBrightnessOptions& options) override;
// Composer HAL 2.4