Implement CacheManager for the Skia pipelines.

The core of the implementation is complete and provides heuristic
cache sizing based on the size of the surface being used. This CL
will also be used to add the following features in the future...

1) Support Vulkan pipeline reporting on the size of the surface.
2) Complete the VectorDrawableAtlas stub code
3) Automatic purging of stale resources for low memory devices.

Test: hwui_unit_tests (new test added) and CtsUiRendering
Bug: 62260637
Change-Id: Ib85159cca28b646fe249f2190b07f1b7e0f50d8f

1 files changed, 5 insertions, 1 deletions

diff --git a/libs/hwui/renderthread/RenderThread.h b/libs/hwui/renderthread/RenderThread.h
index 4b5601c5abc4..d9842572d7cd 100644
--- a/libs/hwui/renderthread/RenderThread.h
+++ b/libs/hwui/renderthread/RenderThread.h
@@ -20,6 +20,7 @@
 #include "RenderTask.h"
 
 #include "../JankTracker.h"
+#include "CacheManager.h"
 #include "TimeLord.h"
 
 #include <GrContext.h>
@@ -102,11 +103,13 @@ public:
     const DisplayInfo& mainDisplayInfo() { return mDisplayInfo; }
 
     GrContext* getGrContext() const { return mGrContext.get(); }
-    void setGrContext(GrContext* cxt) { mGrContext.reset(cxt); }
+    void setGrContext(GrContext* cxt);
 
+    CacheManager& cacheManager() { return *mCacheManager; }
     VulkanManager& vulkanManager() { return *mVkManager; }
 
     sk_sp<Bitmap> allocateHardwareBitmap(SkBitmap& skBitmap);
+    void dumpGraphicsMemory(int fd);
 
 protected:
     virtual bool threadLoop() override;
@@ -161,6 +164,7 @@ private:
     Readback* mReadback = nullptr;
 
     sk_sp<GrContext> mGrContext;
+    CacheManager* mCacheManager;
     VulkanManager* mVkManager;
 };