Merge "[sf] Move texture deletion to main thread via pool" into qt-dev
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 8f7420f..23c6e89 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -590,7 +590,11 @@
 }
 
 void SurfaceFlinger::deleteTextureAsync(uint32_t texture) {
-    postMessageAsync(new LambdaMessage([=] { getRenderEngine().deleteTextures(1, &texture); }));
+    std::lock_guard lock(mTexturePoolMutex);
+    // We don't change the pool size, so the fix-up logic in postComposition will decide whether
+    // to actually delete this or not based on mTexturePoolSize
+    mTexturePool.push_back(texture);
+    ATRACE_INT("TexturePoolSize", mTexturePool.size());
 }
 
 // Do not call property_set on main thread which will be blocked by init
@@ -2078,12 +2082,18 @@
 
     {
         std::lock_guard lock(mTexturePoolMutex);
-        const size_t refillCount = mTexturePoolSize - mTexturePool.size();
-        if (refillCount > 0) {
+        if (mTexturePool.size() < mTexturePoolSize) {
+            const size_t refillCount = mTexturePoolSize - mTexturePool.size();
             const size_t offset = mTexturePool.size();
             mTexturePool.resize(mTexturePoolSize);
             getRenderEngine().genTextures(refillCount, mTexturePool.data() + offset);
             ATRACE_INT("TexturePoolSize", mTexturePool.size());
+        } else if (mTexturePool.size() > mTexturePoolSize) {
+            const size_t deleteCount = mTexturePool.size() - mTexturePoolSize;
+            const size_t offset = mTexturePoolSize;
+            getRenderEngine().deleteTextures(deleteCount, mTexturePool.data() + offset);
+            mTexturePool.resize(mTexturePoolSize);
+            ATRACE_INT("TexturePoolSize", mTexturePool.size());
         }
     }
 
diff --git a/services/surfaceflinger/tests/unittests/CompositionTest.cpp b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
index bebfa6c..7c0ecb3 100644
--- a/services/surfaceflinger/tests/unittests/CompositionTest.cpp
+++ b/services/surfaceflinger/tests/unittests/CompositionTest.cpp
@@ -856,7 +856,7 @@
     }
 
     static void cleanupInjectedLayers(CompositionTest* test) {
-        EXPECT_CALL(*test->mMessageQueue, postMessage(_, 0)).Times(2);
+        EXPECT_CALL(*test->mMessageQueue, postMessage(_, 0)).Times(1);
         Base::cleanupInjectedLayers(test);
     }