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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 "SkCanvas.h"
#include "SkMatrix.h"
#include "SkPaint.h"
#include "SkString.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);
// Most clients use filtering, so let's focus on this for now.
fPaint.setFilterQuality(kLow_SkFilterQuality);
fName.appendf("%s_%s", doAA ? "aa" : "noaa", name);
}
protected:
const char* onGetName() override {
return fName.c_str();
}
void onDelayedSetup() override {
fBitmap.allocN32Pixels(200, 200);
fBitmap.eraseARGB(255, 0, 255, 0);
}
void onDraw(int loops, SkCanvas* canvas) override {
canvas->concat(fMatrix);
for (int i = 0; i < loops; i++) {
canvas->drawBitmap(fBitmap, 0, 0, &fPaint);
}
}
private:
SkPaint fPaint;
SkMatrix fMatrix;
SkString fName;
SkBitmap fBitmap;
typedef Benchmark INHERITED;
};
DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::MakeScale(1), "ident"); )
DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::MakeScale(1.17f), "scale"); )
DEF_BENCH( return new DrawBitmapAABench(false, SkMatrix::MakeTrans(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::MakeScale(1), "ident"); )
DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::MakeScale(1.17f), "scale"); )
DEF_BENCH( return new DrawBitmapAABench(true, SkMatrix::MakeTrans(17.5f, 17.5f), "translate"); )
DEF_BENCH(
SkMatrix m;
m.reset();
m.preRotate(15);
return new DrawBitmapAABench(true, m, "rotate");
)
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