From a663c2bc47eee5279345c6f40bbae3deee69579c Mon Sep 17 00:00:00 2001
From: baocheng sun <baocheng.sun@amlogic.com>
Date: Thu, 13 May 2021 18:51:28 +0800
Subject: Update sideband stream when BufferStateLayer has receive a buffer

This CL updates the sideband when a frame is queued.

Bug: 186383891
Test: b/186383891#comment10
Change-Id: I8d753ba47e06ca969606b0f8709990a097a8ad21
---
 services/surfaceflinger/BufferStateLayer.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'services/surfaceflinger/BufferStateLayer.cpp')

diff --git a/services/surfaceflinger/BufferStateLayer.cpp b/services/surfaceflinger/BufferStateLayer.cpp
index 24b35997b9..78756dfdf1 100644
--- a/services/surfaceflinger/BufferStateLayer.cpp
+++ b/services/surfaceflinger/BufferStateLayer.cpp
@@ -622,7 +622,10 @@ void BufferStateLayer::setAutoRefresh(bool autoRefresh) {
 }
 
 bool BufferStateLayer::latchSidebandStream(bool& recomputeVisibleRegions) {
-    if (mSidebandStreamChanged.exchange(false)) {
+    // We need to update the sideband stream if the layer has both a buffer and a sideband stream.
+    const bool updateSidebandStream = hasFrameUpdate() && mSidebandStream.get();
+
+    if (mSidebandStreamChanged.exchange(false) || updateSidebandStream) {
         const State& s(getDrawingState());
         // mSidebandStreamChanged was true
         mSidebandStream = s.sidebandStream;
-- 
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