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 11 namespace { 12 static void* gGlobalAddress; 13 class TestKey : public SkResourceCache::Key { 14 public: 15 intptr_t fValue; 16 TestKey(intptr_t value)17 TestKey(intptr_t value) : fValue(value) { 18 this->init(&gGlobalAddress, 0, sizeof(fValue)); 19 } 20 }; 21 struct TestRec : public SkResourceCache::Rec { 22 TestKey fKey; 23 intptr_t fValue; 24 TestRec__anon034325a80111::TestRec25 TestRec(const TestKey& key, intptr_t value) : fKey(key), fValue(value) {} 26 getKey__anon034325a80111::TestRec27 const Key& getKey() const override { return fKey; } bytesUsed__anon034325a80111::TestRec28 size_t bytesUsed() const override { return sizeof(fKey) + sizeof(fValue); } getCategory__anon034325a80111::TestRec29 const char* getCategory() const override { return "imagecachebench-test"; } diagnostic_only_getDiscardable__anon034325a80111::TestRec30 SkDiscardableMemory* diagnostic_only_getDiscardable() const override { return nullptr; } 31 Visitor__anon034325a80111::TestRec32 static bool Visitor(const SkResourceCache::Rec&, void*) { 33 return true; 34 } 35 }; 36 } 37 38 class ImageCacheBench : public Benchmark { 39 SkResourceCache fCache; 40 41 enum { 42 CACHE_COUNT = 500 43 }; 44 public: ImageCacheBench()45 ImageCacheBench() : fCache(CACHE_COUNT * 100) {} 46 populateCache()47 void populateCache() { 48 for (int i = 0; i < CACHE_COUNT; ++i) { 49 fCache.add(new TestRec(TestKey(i), i)); 50 } 51 } 52 53 protected: onGetName()54 const char* onGetName() override { 55 return "imagecache"; 56 } 57 onDraw(int loops,SkCanvas *)58 void onDraw(int loops, SkCanvas*) override { 59 if (fCache.getTotalBytesUsed() == 0) { 60 this->populateCache(); 61 } 62 63 TestKey key(-1); 64 // search for a miss (-1) 65 for (int i = 0; i < loops; ++i) { 66 SkDEBUGCODE(bool found =) fCache.find(key, TestRec::Visitor, nullptr); 67 SkASSERT(!found); 68 } 69 } 70 71 private: 72 typedef Benchmark INHERITED; 73 }; 74 75 /////////////////////////////////////////////////////////////////////////////// 76 77 DEF_BENCH( return new ImageCacheBench(); ) 78