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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 "bench/Benchmark.h"
#include "include/core/SkBitmap.h"
#include "include/core/SkColorSpace.h"
#include "src/core/SkMipmap.h"
class MipmapBench: public Benchmark {
SkBitmap fBitmap;
SkString fName;
const int fW, fH;
bool fHalfFoat;
public:
MipmapBench(int w, int h, bool halfFloat = false)
: fW(w), fH(h), fHalfFoat(halfFloat)
{
fName.printf("mipmap_build_%dx%d", w, h);
if (halfFloat) {
fName.append("_f16");
}
}
protected:
bool isSuitableFor(Backend backend) override {
return kNonRendering_Backend == backend;
}
const char* onGetName() override { return fName.c_str(); }
void onDelayedSetup() override {
SkColorType ct = fHalfFoat ? kRGBA_F16_SkColorType : kN32_SkColorType;
SkImageInfo info = SkImageInfo::Make(fW, fH, ct, kPremul_SkAlphaType,
SkColorSpace::MakeSRGB());
fBitmap.allocPixels(info);
fBitmap.eraseColor(SK_ColorWHITE); // so we don't read uninitialized memory
}
void onDraw(int loops, SkCanvas*) override {
for (int i = 0; i < loops * 4; i++) {
SkMipmap::Build(fBitmap, nullptr)->unref();
}
}
private:
using INHERITED = Benchmark;
};
// Build variants that exercise the width and heights being even or odd at each level, as the
// impl specializes on each of these.
//
DEF_BENCH( return new MipmapBench(511, 511); )
DEF_BENCH( return new MipmapBench(512, 511); )
DEF_BENCH( return new MipmapBench(511, 512); )
DEF_BENCH( return new MipmapBench(512, 512); )
DEF_BENCH( return new MipmapBench(512, 512, true); )
DEF_BENCH( return new MipmapBench(511, 511, true); )
DEF_BENCH( return new MipmapBench(2048, 2048); )
DEF_BENCH( return new MipmapBench(2047, 2047); )
DEF_BENCH( return new MipmapBench(2048, 2047); )
DEF_BENCH( return new MipmapBench(2047, 2048); )
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