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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/SkCanvas.h"
#include "include/core/SkImage.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkString.h"
#include "include/core/SkSurface.h"
/**
* This bench measures the rendering time of SkCanvas::drawBitmap with different anti-aliasing /
* matrix combinations.
*/
class DrawBitmapAABench : public Benchmark {
public:
DrawBitmapAABench(bool doAA, const SkMatrix& matrix, const char name[])
: fMatrix(matrix)
, fName("draw_bitmap_") {
fPaint.setAntiAlias(doAA);
fName.appendf("%s_%s", doAA ? "aa" : "noaa", name);
}
protected:
const char* onGetName() override {
return fName.c_str();
}
void onDelayedSetup() override {
auto surf = SkSurface::MakeRasterN32Premul(200, 200);
surf->getCanvas()->clear(0xFF00FF00);
fImage = surf->makeImageSnapshot();
}
void onDraw(int loops, SkCanvas* canvas) override {
SkSamplingOptions sampling(SkFilterMode::kLinear);
canvas->concat(fMatrix);
for (int i = 0; i < loops; i++) {
canvas->drawImage(fImage.get(), 0, 0, sampling, &fPaint);
}
}
private:
SkPaint fPaint;
SkMatrix fMatrix;
SkString fName;
sk_sp<SkImage> fImage;
using INHERITED = Benchmark;
};
DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::I(), "ident"); )
DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::Scale(1.17f, 1.17f), "scale"); )
DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::Translate(17.5f, 17.5f), "translate"); )
DEF_BENCH(
SkMatrix m;
m.reset();
m.preRotate(15);
return new DrawBitmapAABench(false, m, "rotate");
)
DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::I(), "ident"); )
DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::Scale(1.17f, 1.17f), "scale"); )
DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::Translate(17.5f, 17.5f), "translate"); )
DEF_BENCH(
SkMatrix m;
m.reset();
m.preRotate(15);
return new DrawBitmapAABench(true, m, "rotate");
)
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