Implement a benchmark for GrResourceCache

bench/GrMemoryPoolBench.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // This tests a Gr class
 #if SK_SUPPORT_GPU
 
@@ skipping 15 matching lines @@
     static GrMemoryPool gPool;
 };
 GrMemoryPool A::gPool(10 * (1 << 10), 10 * (1 << 10));
 
 /**
  * This benchmark creates and deletes objects in stack order
  */
 class GrMemoryPoolBenchStack : public SkBenchmark {
 public:
     GrMemoryPoolBenchStack()  {
-        fIsRendering = false;
     }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
+    }
+
 protected:
     virtual const char* onGetName() {
         return "grmemorypool_stack";
     }
 
     virtual void onDraw(SkCanvas*) {
         SkRandom r;
         enum {
             kMaxObjects = 4 * (1 << 10),
         };
@@ skipping 29 matching lines @@
 private:
     typedef SkBenchmark INHERITED;
 };
 
 /**
  * This benchmark creates objects and deletes them in random order
  */
 class GrMemoryPoolBenchRandom : public SkBenchmark {
 public:
     GrMemoryPoolBenchRandom()  {
-        fIsRendering = false;
     }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
+    }
+
 protected:
     virtual const char* onGetName() {
         return "grmemorypool_random";
     }
 
     virtual void onDraw(SkCanvas*) {
         SkRandom r;
         enum {
             kMaxObjects = 4 * (1 << 10),
         };
@@ skipping 15 matching lines @@
 
 /**
  * This benchmark creates objects and deletes them in queue order
  */
 class GrMemoryPoolBenchQueue : public SkBenchmark {
     enum {
         M = 4 * (1 << 10),
     };
 public:
     GrMemoryPoolBenchQueue()  {
-        fIsRendering = false;
     }
+
+    virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
+        return backend == kNonRendering_Backend;
+    }
+
 protected:
     virtual const char* onGetName() {
         return "grmemorypool_queue";
     }
 
     virtual void onDraw(SkCanvas*) {
         SkRandom r;
         A* objects[M];
         for (int i = 0; i < this->getLoops(); i++) {
             uint32_t count = r.nextRangeU(0, M-1);
@@ skipping 10 matching lines @@
     typedef SkBenchmark INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 DEF_BENCH( return new GrMemoryPoolBenchStack(); )
 DEF_BENCH( return new GrMemoryPoolBenchRandom(); )
 DEF_BENCH( return new GrMemoryPoolBenchQueue(); )
 
 #endif