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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 "bench/Benchmark.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkString.h"
- #include "include/effects/SkMatrixConvolutionImageFilter.h"
- #include "include/utils/SkRandom.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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