From 1768cb03cf1ea51ec18f2514f8afa086b6314ba5 Mon Sep 17 00:00:00 2001
From: Huihong Luo <huisinro@google.com>
Date: Tue, 11 Oct 2022 11:10:34 -0700
Subject: Variable refresh rate for virtual display

Allow virtual display to request a refresh rate, so it can be different
from VSYNC frequencies. SurfaceFlinger drops frames for the
corresponding virtual display based on the refresh rate.

Bug: 241286579
Test: atest libgui_test libsurfaceflinger_unittest SurfaceFlinger_test
Change-Id: I4fba0e553618bb4c7333514b16206ae4277acf72
---
 libs/gui/SurfaceComposerClient.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

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

diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index cf9828b2f8..9092f5fe67 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1182,12 +1182,14 @@ void SurfaceComposerClient::Transaction::setDefaultApplyToken(sp<IBinder> applyT
 }
 // ---------------------------------------------------------------------------
 
-sp<IBinder> SurfaceComposerClient::createDisplay(const String8& displayName, bool secure) {
+sp<IBinder> SurfaceComposerClient::createDisplay(const String8& displayName, bool secure,
+                                                 float requestedRefereshRate) {
     sp<IBinder> display = nullptr;
     binder::Status status =
             ComposerServiceAIDL::getComposerService()->createDisplay(std::string(
                                                                              displayName.string()),
-                                                                     secure, &display);
+                                                                     secure, requestedRefereshRate,
+                                                                     &display);
     return status.isOk() ? display : nullptr;
 }
 
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