From 1b0d4e16530a4feb99eafbfdfce2aeb39c5e23e3 Mon Sep 17 00:00:00 2001
From: Alec Mouri <alecmouri@google.com>
Date: Mon, 12 Feb 2024 22:27:19 +0000
Subject: Add support for restricting HDR headroom for video

This is needed for allowing apps to vote for HDR headroom restrictions
for SurfaceView and SurfaceControl

Bug: 323964760
Test: manually poking at test app
Test: SurfaceViewTests
Test: SurfaceControlTest
Test: ASurfaceControlTest
Change-Id: Ie886e67879525462d49fdedc535aea659d69321a
---
 libs/gui/SurfaceComposerClient.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'libs/gui/SurfaceComposerClient.cpp')

diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 8d18551b69..3a02c644bf 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1807,6 +1807,20 @@ SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setExten
     return *this;
 }
 
+SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setDesiredHdrHeadroom(
+        const sp<SurfaceControl>& sc, float desiredRatio) {
+    layer_state_t* s = getLayerState(sc);
+    if (!s) {
+        mStatus = BAD_INDEX;
+        return *this;
+    }
+    s->what |= layer_state_t::eDesiredHdrHeadroomChanged;
+    s->desiredHdrSdrRatio = desiredRatio;
+
+    registerSurfaceControlForCallback(sc);
+    return *this;
+}
+
 SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setCachingHint(
         const sp<SurfaceControl>& sc, gui::CachingHint cachingHint) {
     layer_state_t* s = getLayerState(sc);
-- 
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