1 files changed, 13 insertions, 1 deletions
diff --git a/libs/hwui/renderthread/CanvasContext.h b/libs/hwui/renderthread/CanvasContext.h
index 0cbed6f..7c27190 100644
--- a/libs/hwui/renderthread/CanvasContext.h
+++ b/libs/hwui/renderthread/CanvasContext.h
@@ -17,6 +17,8 @@
 #ifndef CANVASCONTEXT_H_
 #define CANVASCONTEXT_H_
 
+#include <set>
+
 #include <cutils/compiler.h>
 #include <EGL/egl.h>
 #include <SkBitmap.h>
@@ -25,6 +27,7 @@
 
 #include "../DamageAccumulator.h"
 #include "../DrawProfiler.h"
+#include "../IContextFactory.h"
 #include "../RenderNode.h"
 #include "RenderTask.h"
 #include "RenderThread.h"
@@ -34,6 +37,7 @@
 namespace android {
 namespace uirenderer {
 
+class AnimationContext;
 class DeferredLayerUpdater;
 class OpenGLRenderer;
 class Rect;
@@ -45,9 +49,11 @@ class EglManager;
 
 // This per-renderer class manages the bridge between the global EGL context
 // and the render surface.
+// TODO: Rename to Renderer or some other per-window, top-level manager
 class CanvasContext : public IFrameCallback {
 public:
-    CanvasContext(RenderThread& thread, bool translucent, RenderNode* rootRenderNode);
+    CanvasContext(RenderThread& thread, bool translucent, RenderNode* rootRenderNode,
+            IContextFactory* contextFactory);
     virtual ~CanvasContext();
 
     bool initialize(ANativeWindow* window);
@@ -67,6 +73,7 @@ public:
 
     void buildLayer(RenderNode* node);
     bool copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap);
+    void markLayerInUse(RenderNode* node);
 
     void destroyHardwareResources();
     static void trimMemory(RenderThread& thread, int level);
@@ -95,6 +102,8 @@ private:
 
     void requireGlContext();
 
+    void freePrefetechedLayers();
+
     RenderThread& mRenderThread;
     EglManager& mEglManager;
     sp<ANativeWindow> mNativeWindow;
@@ -105,10 +114,13 @@ private:
     OpenGLRenderer* mCanvas;
     bool mHaveNewSurface;
     DamageAccumulator mDamageAccumulator;
+    AnimationContext* mAnimationContext;
 
     const sp<RenderNode> mRootRenderNode;
 
     DrawProfiler mProfiler;
+
+    std::set<RenderNode*> mPrefetechedLayers;
 };
 
 } /* namespace renderthread */