88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
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/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "bench/Benchmark.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkString.h"
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#include "include/core/SkTileMode.h"
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#include "include/effects/SkImageFilters.h"
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#include "include/utils/SkRandom.h"
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#include "tools/ToolUtils.h"
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class MatrixConvolutionBench : public Benchmark {
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public:
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MatrixConvolutionBench(bool bigKernel, SkTileMode tileMode, bool convolveAlpha)
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: fName(SkStringPrintf("matrixconvolution_%s%s%s",
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bigKernel ? "bigKernel_" : "",
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ToolUtils::tilemode_name(tileMode),
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convolveAlpha ? "" : "_noConvolveAlpha")) {
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if (bigKernel) {
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SkISize kernelSize = SkISize::Make(9, 9);
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SkScalar kernel[81];
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for (int i = 0; i < 81; i++) {
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kernel[i] = SkIntToScalar(1);
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}
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kernel[40] = SkIntToScalar(-79);
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SkScalar gain = 0.3f, bias = SkIntToScalar(100);
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SkIPoint kernelOffset = SkIPoint::Make(4, 4);
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fFilter = SkImageFilters::MatrixConvolution(kernelSize, kernel, gain, bias,
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kernelOffset, tileMode, convolveAlpha,
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nullptr);
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} else {
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SkISize kernelSize = SkISize::Make(3, 3);
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SkScalar kernel[9] = {
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SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1),
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SkIntToScalar( 1), SkIntToScalar(-7), SkIntToScalar( 1),
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SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1),
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};
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SkScalar gain = 0.3f, bias = SkIntToScalar(100);
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SkIPoint kernelOffset = SkIPoint::Make(1, 1);
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fFilter = SkImageFilters::MatrixConvolution(kernelSize, kernel, gain, bias,
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kernelOffset, tileMode, convolveAlpha,
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nullptr);
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}
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}
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protected:
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const char* onGetName() override {
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return fName.c_str();
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}
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void onDraw(int loops, SkCanvas* canvas) override {
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SkPaint paint;
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this->setupPaint(&paint);
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paint.setImageFilter(fFilter);
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paint.setAntiAlias(true);
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SkRandom rand;
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for (int i = 0; i < loops; i++) {
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SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
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rand.nextUScalar1() * 400);
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canvas->drawOval(r, paint);
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}
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}
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private:
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sk_sp<SkImageFilter> fFilter;
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SkString fName;
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using INHERITED = Benchmark;
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};
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DEF_BENCH( return new MatrixConvolutionBench(false, SkTileMode::kClamp, true); )
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DEF_BENCH( return new MatrixConvolutionBench(false, SkTileMode::kRepeat, true); )
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DEF_BENCH( return new MatrixConvolutionBench(false, SkTileMode::kMirror, true); )
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DEF_BENCH( return new MatrixConvolutionBench(false, SkTileMode::kDecal, true); )
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DEF_BENCH( return new MatrixConvolutionBench(false, SkTileMode::kDecal, false); )
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DEF_BENCH( return new MatrixConvolutionBench(true, SkTileMode::kClamp, true); )
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DEF_BENCH( return new MatrixConvolutionBench(true, SkTileMode::kRepeat, true); )
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DEF_BENCH( return new MatrixConvolutionBench(true, SkTileMode::kMirror, true); )
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DEF_BENCH( return new MatrixConvolutionBench(true, SkTileMode::kDecal, true); )
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DEF_BENCH( return new MatrixConvolutionBench(true, SkTileMode::kDecal, false); )
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