skia2/bench/MipMapBench.cpp

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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Benchmark.h"
#include "SkBitmap.h"
#include "SkMipMap.h"
class MipMapBench: public Benchmark {
SkBitmap fBitmap;
public:
MipMapBench() {}
protected:
bool isSuitableFor(Backend backend) override {
return kNonRendering_Backend == backend;
}
const char* onGetName() override { return "mipmap_build"; }
void onDelayedSetup() override {
fBitmap.allocN32Pixels(1000, 1000, true);
fBitmap.eraseColor(SK_ColorWHITE); // so we don't read uninitialized memory
}
void onDraw(int loops, SkCanvas*) override {
for (int i = 0; i < loops; i++) {
SkMipMap::Build(fBitmap, nullptr)->unref();
}
}
private:
typedef Benchmark INHERITED;
};
DEF_BENCH( return new MipMapBench; )