commit 1c8d7209992582fcfef020d75c990565dee1c71d
author Alec Mouri <alecmouri@google.com> Sat Jun 01 18:51:35 2019 -0700
committer Alec Mouri <alecmouri@google.com> Thu Jun 06 18:57:09 2019 -0700
tree c35ac8eec8c88efeeae0d9835fe02858082e7bb3
parent 0fafdb81ae408c155607151f27ca51622cdeb089

[SurfaceFlinger] support EGLImage management in BLAST

This mirrors a performance optimization for BufferQueueLayers where
EGLImages were allocated in onFrameAvailable. Here when buffers are
passed over to SurfaceFlinger in a transaction, an EGLImage is also
created for that buffer.

This is critical for reducing jank when operating in higher refresh
rates, as eglCreateImageKHR can take long enough for frames to miss.

Bug: 133627730
Test: systrace of chrome in landscope orientation caches properly
Change-Id: I2022564fbecace7cadd00c89abdcc358d6323315

services/surfaceflinger/Layer.h

diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 3712b2a..7aecc90 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -17,8 +17,6 @@
 #ifndef ANDROID_LAYER_H
 #define ANDROID_LAYER_H
 
-#include <sys/types.h>
-
 #include <compositionengine/LayerFE.h>
 #include <gui/BufferQueue.h>
 #include <gui/ISurfaceComposerClient.h>
@@ -28,6 +26,7 @@
 #include <math/vec4.h>
 #include <renderengine/Mesh.h>
 #include <renderengine/Texture.h>
+#include <sys/types.h>
 #include <ui/FloatRect.h>
 #include <ui/FrameStats.h>
 #include <ui/GraphicBuffer.h>
@@ -44,16 +43,16 @@
 #include <vector>
 
 #include "Client.h"
+#include "ClientCache.h"
+#include "DisplayHardware/ComposerHal.h"
+#include "DisplayHardware/HWComposer.h"
 #include "FrameTracker.h"
 #include "LayerVector.h"
 #include "MonitoredProducer.h"
+#include "RenderArea.h"
 #include "SurfaceFlinger.h"
 #include "TransactionCompletedThread.h"
 
-#include "DisplayHardware/ComposerHal.h"
-#include "DisplayHardware/HWComposer.h"
-#include "RenderArea.h"
-
 using namespace android::surfaceflinger;
 
 namespace android {
@@ -94,7 +93,7 @@
     LayerMetadata metadata;
 };
 
-class Layer : public virtual compositionengine::LayerFE {
+class Layer : public virtual compositionengine::LayerFE, public ClientCache::ErasedRecipient {
     static std::atomic<int32_t> sSequence;
 
 public:
@@ -690,6 +689,9 @@
     compositionengine::OutputLayer* findOutputLayerForDisplay(
             const sp<const DisplayDevice>& display) const;
 
+    // Inherit from ClientCache::ErasedRecipient
+    void bufferErased(const client_cache_t& /*clientCacheId*/) override {}
+
 protected:
     // constant
     sp<SurfaceFlinger> mFlinger;