From ac70bc579028cdc00a2f14b77718080b26b93c7d Mon Sep 17 00:00:00 2001
From: Patrick Williams <pdwilliams@google.com>
Date: Tue, 9 Jul 2024 17:11:28 -0500
Subject: Optimize BLAST buffer releases via Unix sockets

Bug: 294133380
Flag: com.android.graphics.libgui.flags.buffer_release_channel
Test: BLASTBufferQueueTest
Change-Id: Ia183452198dadc7f8e540f7219bd44d8b5823458
---
 libs/gui/SurfaceComposerClient.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

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

diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 2821b510c3..5c87772587 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -2394,6 +2394,22 @@ SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setDropI
     return *this;
 }
 
+SurfaceComposerClient::Transaction& SurfaceComposerClient::Transaction::setBufferReleaseChannel(
+        const sp<SurfaceControl>& sc,
+        const std::shared_ptr<gui::BufferReleaseChannel::ProducerEndpoint>& channel) {
+    layer_state_t* s = getLayerState(sc);
+    if (!s) {
+        mStatus = BAD_INDEX;
+        return *this;
+    }
+
+    s->what |= layer_state_t::eBufferReleaseChannelChanged;
+    s->bufferReleaseChannel = channel;
+
+    registerSurfaceControlForCallback(sc);
+    return *this;
+}
+
 // ---------------------------------------------------------------------------
 
 DisplayState& SurfaceComposerClient::Transaction::getDisplayState(const sp<IBinder>& token) {
-- 
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