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 "SkBenchmark.h" 9 #include "SkScaledImageCache.h" 10 11 class ImageCacheBench : public SkBenchmark { 12 SkScaledImageCache fCache; 13 SkBitmap fBM; 14 15 enum { 16 DIM = 1, 17 CACHE_COUNT = 500 18 }; 19 public: ImageCacheBench()20 ImageCacheBench() : fCache(CACHE_COUNT * 100) { 21 fBM.setConfig(SkBitmap::kARGB_8888_Config, DIM, DIM); 22 fBM.allocPixels(); 23 } 24 populateCache()25 void populateCache() { 26 SkScalar scale = 1; 27 for (int i = 0; i < CACHE_COUNT; ++i) { 28 SkBitmap tmp; 29 tmp.setConfig(SkBitmap::kARGB_8888_Config, 1, 1); 30 tmp.allocPixels(); 31 fCache.unlock(fCache.addAndLock(fBM, scale, scale, tmp)); 32 scale += 1; 33 } 34 } 35 36 protected: onGetName()37 virtual const char* onGetName() SK_OVERRIDE { 38 return "imagecache"; 39 } 40 onDraw(const int loops,SkCanvas *)41 virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE { 42 if (fCache.getBytesUsed() == 0) { 43 this->populateCache(); 44 } 45 46 SkBitmap tmp; 47 // search for a miss (-1 scale) 48 for (int i = 0; i < loops; ++i) { 49 (void)fCache.findAndLock(fBM, -1, -1, &tmp); 50 } 51 } 52 53 private: 54 typedef SkBenchmark INHERITED; 55 }; 56 57 /////////////////////////////////////////////////////////////////////////////// 58 59 DEF_BENCH( return new ImageCacheBench(); ) 60