680fb9e8f1
Follow-on CLs - rename ScaledimageCache to something like GeneralCache - explore if we can use call-backs or some mechanism to completely hide "lock/unlock", by forcing all clients to support "copying" their value out of the cache as the result of a Find. R=mtklein@google.com, senorblanco@google.com, bsalomon@google.com, qiankun.miao@intel.com, senorblanco@chromium.org Author: reed@google.com Review URL: https://codereview.chromium.org/507483002
77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Benchmark.h"
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#include "SkScaledImageCache.h"
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namespace {
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static void* gGlobalAddress;
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class TestKey : public SkScaledImageCache::Key {
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public:
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void* fPtr;
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intptr_t fValue;
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TestKey(intptr_t value) : fPtr(&gGlobalAddress), fValue(value) {
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this->init(sizeof(fPtr) + sizeof(fValue));
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}
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};
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struct TestRec : public SkScaledImageCache::Rec {
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TestKey fKey;
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intptr_t fValue;
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TestRec(const TestKey& key, intptr_t value) : fKey(key), fValue(value) {}
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virtual const Key& getKey() const SK_OVERRIDE { return fKey; }
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virtual size_t bytesUsed() const SK_OVERRIDE { return sizeof(fKey) + sizeof(fValue); }
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};
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}
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class ImageCacheBench : public Benchmark {
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SkScaledImageCache fCache;
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SkBitmap fBM;
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enum {
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DIM = 1,
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CACHE_COUNT = 500
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};
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public:
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ImageCacheBench() : fCache(CACHE_COUNT * 100) {
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fBM.allocN32Pixels(DIM, DIM);
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}
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void populateCache() {
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for (int i = 0; i < CACHE_COUNT; ++i) {
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fCache.unlock(fCache.addAndLock(SkNEW_ARGS(TestRec, (TestKey(i), i))));
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}
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}
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protected:
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virtual const char* onGetName() SK_OVERRIDE {
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return "imagecache";
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}
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virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
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if (fCache.getTotalBytesUsed() == 0) {
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this->populateCache();
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}
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TestKey key(-1);
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// search for a miss (-1)
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for (int i = 0; i < loops; ++i) {
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SkDEBUGCODE(SkScaledImageCache::ID id =) fCache.findAndLock(key);
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SkASSERT(NULL == id);
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}
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}
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private:
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typedef Benchmark INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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DEF_BENCH( return new ImageCacheBench(); )
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