Update Layer Hoisting to store its atlas texture in the resource cache

src/gpu/GrResourceCache.h

 
 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrResourceCache_DEFINED
 #define GrResourceCache_DEFINED
@@ skipping 164 matching lines @@
      * provided here will be passed back to the callback. Note that the cache will attempt to purge
      * any resources newly freed by the callback.
      */
     void setOverBudgetCallback(PFOverBudgetCB overBudgetCB, void* data) {
         fOverBudgetCB = overBudgetCB;
         fOverBudgetData = data;
     }
 
     void notifyFlushOccurred();
 
-#if GR_GPU_STATS
+#if GR_CACHE_STATS
+    struct Stats {
+        int fTotal;
+        int fNumPurgeable;
+        int fNumNonPurgeable;
+
+        int fScratch;
+        int fExternal;
+        int fBorrowed;
+        int fAdopted;
+        size_t fUnbudgetedSize;
+
+        Stats() { this->reset(); }
+
+        void reset() {
+            fTotal = 0;
+            fNumPurgeable = 0;
+            fNumNonPurgeable = 0;
+            fScratch = 0;
+            fExternal = 0;
+            fBorrowed = 0;
+            fAdopted = 0;
+            fUnbudgetedSize = 0;
+        }
+
+        void update(GrGpuResource* resource) {
+            if (resource->cacheAccess().isScratch()) {
+                ++fScratch;
+            }
+            if (resource->cacheAccess().isExternal()) {
+                ++fExternal;
+            }
+            if (resource->cacheAccess().isBorrowed()) {
+                ++fBorrowed;
+            }
+            if (resource->cacheAccess().isAdopted()) {
+                ++fAdopted;
+            }
+            if (!resource->resourcePriv().isBudgeted()) {
+                fUnbudgetedSize += resource->gpuMemorySize();
+            }
+        }
+    };
+
+    void getStats(Stats*) const;
+
     void dumpStats(SkString*) const;
 #endif
 
     // This function is for unit testing and is only defined in test tools.
     void changeTimestamp(uint32_t newTimestamp);
 
     // Enumerates all cached resources and dumps their details to traceMemoryDump.
     void dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const;
 
 private:
@@ skipping 188 matching lines @@
 
     friend class GrGpuResource; // To access all the proxy inline methods.
     friend class GrResourceCache; // To create this type.
 };
 
 inline GrResourceCache::ResourceAccess GrResourceCache::resourceAccess() {
     return ResourceAccess(this);
 }
 
 #endif