From f57c0163f9c6fe8596a56df52a98f3f912f40ef5 Mon Sep 17 00:00:00 2001 From: Robert Carr Date: Wed, 24 Mar 2021 15:48:25 -0700 Subject: [PATCH] ASurfaceTransaction: Add setEnableBackpressure Expose the backpressure flag to NDK. See comment in header file for extensive discussion. Bug: 177458703 Test: Need new CTS Change-Id: I97cdaef5d499f57a270972f001517b8a520aa2fe --- native/android/libandroid.map.txt | 1 + native/android/surface_control.cpp | 14 ++++++++++++++ 2 files changed, 15 insertions(+) diff --git a/native/android/libandroid.map.txt b/native/android/libandroid.map.txt index 35249f615e6bd..d2358b705fc0e 100644 --- a/native/android/libandroid.map.txt +++ b/native/android/libandroid.map.txt @@ -252,6 +252,7 @@ LIBANDROID { ASurfaceTransaction_setColor; # introduced=29 ASurfaceTransaction_setDamageRegion; # introduced=29 ASurfaceTransaction_setDesiredPresentTime; # introduced=29 + ASurfaceTransaction_setEnableBackPressure; # introduced=31 ASurfaceTransaction_setFrameRate; # introduced=30 ASurfaceTransaction_setFrameRateWithSeamlessness; # introduced=31 ASurfaceTransaction_setGeometry; # introduced=29 diff --git a/native/android/surface_control.cpp b/native/android/surface_control.cpp index 195fd5e60295f..8b60480bfe737 100644 --- a/native/android/surface_control.cpp +++ b/native/android/surface_control.cpp @@ -655,3 +655,17 @@ void ASurfaceTransaction_setFrameRateWithSeamlessness(ASurfaceTransaction* aSurf sp surfaceControl = ASurfaceControl_to_SurfaceControl(aSurfaceControl); transaction->setFrameRate(surfaceControl, frameRate, compatibility, shouldBeSeamless); } + +void ASurfaceTransaction_setEnableBackPressure(ASurfaceTransaction* aSurfaceTransaction, + ASurfaceControl* aSurfaceControl, + bool enableBackpressure) { + CHECK_NOT_NULL(aSurfaceControl); + CHECK_NOT_NULL(aSurfaceTransaction); + + sp surfaceControl = ASurfaceControl_to_SurfaceControl(aSurfaceControl); + Transaction* transaction = ASurfaceTransaction_to_Transaction(aSurfaceTransaction); + + const uint32_t flags = enableBackpressure ? + layer_state_t::eEnableBackpressure : 0; + transaction->setFlags(surfaceControl, flags, layer_state_t::eEnableBackpressure); +}