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/*
* Copyright 2012 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 "SkCanvas.h"
#include "SkMatrixConvolutionImageFilter.h"
#include "SkPaint.h"
#include "SkRandom.h"
#include "SkString.h"
static const char* name(SkMatrixConvolutionImageFilter::TileMode mode) {
switch (mode) {
case SkMatrixConvolutionImageFilter::kClamp_TileMode: return "clamp";
case SkMatrixConvolutionImageFilter::kRepeat_TileMode: return "repeat";
case SkMatrixConvolutionImageFilter::kClampToBlack_TileMode: return "clampToBlack";
}
return "oops";
}
class MatrixConvolutionBench : public Benchmark {
public:
MatrixConvolutionBench(SkMatrixConvolutionImageFilter::TileMode tileMode, bool convolveAlpha)
: fName(SkStringPrintf("matrixconvolution_%s%s",
name(tileMode),
convolveAlpha ? "" : "_noConvolveAlpha")) {
SkISize kernelSize = SkISize::Make(3, 3);
SkScalar kernel[9] = {
SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1),
SkIntToScalar( 1), SkIntToScalar(-7), SkIntToScalar( 1),
SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1),
};
SkScalar gain = 0.3f, bias = SkIntToScalar(100);
SkIPoint kernelOffset = SkIPoint::Make(1, 1);
fFilter = SkMatrixConvolutionImageFilter::Make(kernelSize, kernel, gain, bias,
kernelOffset, tileMode, convolveAlpha,
nullptr);
}
protected:
virtual const char* onGetName() {
return fName.c_str();
}
virtual void onDraw(int loops, SkCanvas* canvas) {
SkPaint paint;
this->setupPaint(&paint);
paint.setAntiAlias(true);
SkRandom rand;
for (int i = 0; i < loops; i++) {
SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
rand.nextUScalar1() * 400);
paint.setImageFilter(fFilter);
canvas->drawOval(r, paint);
}
}
private:
sk_sp<SkImageFilter> fFilter;
SkString fName;
typedef Benchmark INHERITED;
};
DEF_BENCH( return new MatrixConvolutionBench(SkMatrixConvolutionImageFilter::kClamp_TileMode, true); )
DEF_BENCH( return new MatrixConvolutionBench(SkMatrixConvolutionImageFilter::kRepeat_TileMode, true); )
DEF_BENCH( return new MatrixConvolutionBench(SkMatrixConvolutionImageFilter::kClampToBlack_TileMode, true); )
DEF_BENCH( return new MatrixConvolutionBench(SkMatrixConvolutionImageFilter::kClampToBlack_TileMode, false); )
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