1/* 2 * Copyright 2013 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8#include "Benchmark.h" 9#include "SkResourceCache.h" 10 11namespace { 12static void* gGlobalAddress; 13class TestKey : public SkResourceCache::Key { 14public: 15 void* fPtr; 16 intptr_t fValue; 17 18 TestKey(intptr_t value) : fPtr(&gGlobalAddress), fValue(value) { 19 this->init(sizeof(fPtr) + sizeof(fValue)); 20 } 21}; 22struct TestRec : public SkResourceCache::Rec { 23 TestKey fKey; 24 intptr_t fValue; 25 26 TestRec(const TestKey& key, intptr_t value) : fKey(key), fValue(value) {} 27 28 virtual const Key& getKey() const SK_OVERRIDE { return fKey; } 29 virtual size_t bytesUsed() const SK_OVERRIDE { return sizeof(fKey) + sizeof(fValue); } 30 31 static bool Visitor(const SkResourceCache::Rec&, void*) { 32 return true; 33 } 34}; 35} 36 37class ImageCacheBench : public Benchmark { 38 SkResourceCache fCache; 39 40 enum { 41 CACHE_COUNT = 500 42 }; 43public: 44 ImageCacheBench() : fCache(CACHE_COUNT * 100) {} 45 46 void populateCache() { 47 for (int i = 0; i < CACHE_COUNT; ++i) { 48 fCache.add(SkNEW_ARGS(TestRec, (TestKey(i), i))); 49 } 50 } 51 52protected: 53 virtual const char* onGetName() SK_OVERRIDE { 54 return "imagecache"; 55 } 56 57 virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE { 58 if (fCache.getTotalBytesUsed() == 0) { 59 this->populateCache(); 60 } 61 62 TestKey key(-1); 63 // search for a miss (-1) 64 for (int i = 0; i < loops; ++i) { 65 SkDEBUGCODE(bool found =) fCache.find(key, TestRec::Visitor, NULL); 66 SkASSERT(!found); 67 } 68 } 69 70private: 71 typedef Benchmark INHERITED; 72}; 73 74/////////////////////////////////////////////////////////////////////////////// 75 76DEF_BENCH( return new ImageCacheBench(); ) 77