commit b4c6e5850f16d045abcb4e3308b7556749a61be0
author chaviw <chaviw@google.com> Fri Aug 16 14:35:07 2019 -0700
committer chaviw <chaviw@google.com> Thu Sep 26 10:04:12 2019 -0700
tree 04389ac878b1b6609976c2388861bd8c2f849784
parent 04c70c4c49f02e660edda8f24638efdda54f38b6

[Mirror Layers] Added clone function to layers (1/4)

Added a cloning function to each layer in preparation for mirroring

Test: Nothing to test yet since no calls
Bug: 131622422
Change-Id: Iba0692b75c4d99841de48f40ed55b3dbccf2b9b9

services/surfaceflinger/BufferQueueLayer.cpp

diff --git a/services/surfaceflinger/BufferQueueLayer.cpp b/services/surfaceflinger/BufferQueueLayer.cpp
index fcabedf..eb13f65 100644
--- a/services/surfaceflinger/BufferQueueLayer.cpp
+++ b/services/surfaceflinger/BufferQueueLayer.cpp
@@ -461,12 +461,7 @@
     sp<IGraphicBufferConsumer> consumer;
     BufferQueue::createBufferQueue(&producer, &consumer, true);
     mProducer = new MonitoredProducer(producer, mFlinger, this);
-    {
-        // Grab the SF state lock during this since it's the only safe way to access RenderEngine
-        Mutex::Autolock lock(mFlinger->mStateLock);
-        mConsumer =
-                new BufferLayerConsumer(consumer, mFlinger->getRenderEngine(), mTextureName, this);
-    }
+    mConsumer = new BufferLayerConsumer(consumer, mFlinger->getRenderEngine(), mTextureName, this);
     mConsumer->setConsumerUsageBits(getEffectiveUsage(0));
     mConsumer->setContentsChangedListener(this);
     mConsumer->setName(mName);
@@ -476,7 +471,7 @@
         mProducer->setMaxDequeuedBufferCount(2);
     }
 
-    if (const auto display = mFlinger->getDefaultDisplayDevice()) {
+    if (const auto display = mFlinger->getDefaultDisplayDeviceLocked()) {
         updateTransformHint(display);
     }
 }
@@ -531,4 +526,15 @@
     mBufferInfo.mTransformToDisplayInverse = mConsumer->getTransformToDisplayInverse();
 }
 
+sp<Layer> BufferQueueLayer::createClone() {
+    const String8 name = mName + " (Mirror)";
+    LayerCreationArgs args =
+            LayerCreationArgs(mFlinger.get(), nullptr, name, 0, 0, 0, LayerMetadata());
+    args.textureName = mTextureName;
+    sp<BufferQueueLayer> layer = new BufferQueueLayer(args);
+    layer->setInitialValuesForClone(this);
+
+    return layer;
+}
+
 } // namespace android