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Diffstat (limited to 'bench/ImageCacheBench.cpp')
-rw-r--r-- | bench/ImageCacheBench.cpp | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/bench/ImageCacheBench.cpp b/bench/ImageCacheBench.cpp new file mode 100644 index 0000000000..3a22a47826 --- /dev/null +++ b/bench/ImageCacheBench.cpp @@ -0,0 +1,60 @@ +/* + * Copyright 2013 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "SkBenchmark.h" +#include "SkScaledImageCache.h" + +class ImageCacheBench : public SkBenchmark { + SkScaledImageCache fCache; + SkBitmap fBM; + + enum { + N = SkBENCHLOOP(1000), + DIM = 1, + CACHE_COUNT = 500 + }; +public: + ImageCacheBench(void* param) : INHERITED(param) , fCache(CACHE_COUNT * 100) { + fBM.setConfig(SkBitmap::kARGB_8888_Config, DIM, DIM); + fBM.allocPixels(); + } + + void populateCache() { + SkScalar scale = 1; + for (int i = 0; i < CACHE_COUNT; ++i) { + SkBitmap tmp; + tmp.setConfig(SkBitmap::kARGB_8888_Config, 1, 1); + tmp.allocPixels(); + fCache.unlock(fCache.addAndLock(fBM, scale, scale, tmp)); + scale += 1; + } + } + +protected: + virtual const char* onGetName() SK_OVERRIDE { + return "imagecache"; + } + + virtual void onDraw(SkCanvas*) SK_OVERRIDE { + if (fCache.getBytesUsed() == 0) { + this->populateCache(); + } + + SkBitmap tmp; + // search for a miss (-1 scale) + for (int i = 0; i < N; ++i) { + (void)fCache.findAndLock(fBM, -1, -1, &tmp); + } + } + +private: + typedef SkBenchmark INHERITED; +}; + +/////////////////////////////////////////////////////////////////////////////// + +DEF_BENCH( return new ImageCacheBench(p); ) |