Improve time to texture destruction

Eliminate textureCache.mGarbage which is only cleared
in a trimMemory. Instead when we hit ~Bitmap post a
message to RenderThread to release the texture immediately

Bug: 38258699
Test: manual
Change-Id: I962ba275e89afb628ba02f74769287edbab9fed4

2 files changed, 17 insertions, 0 deletions

diff --git a/libs/hwui/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index a1f1717e6b96..eed523810403 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -24,6 +24,7 @@
 #include "renderthread/EglManager.h"
 #include "renderthread/RenderTask.h"
 #include "renderthread/RenderThread.h"
+#include "renderstate/RenderState.h"
 #include "utils/Macros.h"
 #include "utils/TimeUtils.h"
 
@@ -693,6 +694,20 @@ int RenderProxy::copyGraphicBufferInto(GraphicBuffer* buffer, SkBitmap* bitmap)
     }
 }
 
+CREATE_BRIDGE2(onBitmapDestroyed, RenderThread* thread, uint32_t pixelRefId) {
+    args->thread->renderState().onBitmapDestroyed(args->pixelRefId);
+    return nullptr;
+}
+
+void RenderProxy::onBitmapDestroyed(uint32_t pixelRefId) {
+    if (!RenderThread::hasInstance()) return;
+    SETUP_TASK(onBitmapDestroyed);
+    RenderThread& thread = RenderThread::getInstance();
+    args->thread = &thread;
+    args->pixelRefId = pixelRefId;
+    thread.queue(task);
+}
+
 void RenderProxy::post(RenderTask* task) {
     mRenderThread.queue(task);
 }
diff --git a/libs/hwui/renderthread/RenderProxy.h b/libs/hwui/renderthread/RenderProxy.h
index a60ed55c70d2..b21772cd88de 100644
--- a/libs/hwui/renderthread/RenderProxy.h
+++ b/libs/hwui/renderthread/RenderProxy.h
@@ -135,6 +135,8 @@ public:
     static sk_sp<Bitmap> allocateHardwareBitmap(SkBitmap& bitmap);
 
     static int copyGraphicBufferInto(GraphicBuffer* buffer, SkBitmap* bitmap);
+
+    static void onBitmapDestroyed(uint32_t pixelRefId);
 private:
     RenderThread& mRenderThread;
     CanvasContext* mContext;