| /* |
| * 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/core/SkTileMode.h" |
| #include "include/effects/SkImageFilters.h" |
| #include "src/base/SkRandom.h" |
| |
| #include "tools/ToolUtils.h" |
| |
| class MatrixConvolutionBench : public Benchmark { |
| public: |
| MatrixConvolutionBench(bool bigKernel, SkTileMode tileMode, bool convolveAlpha) |
| : fName(SkStringPrintf("matrixconvolution_%s%s%s", |
| bigKernel ? "bigKernel_" : "", |
| ToolUtils::tilemode_name(tileMode), |
| convolveAlpha ? "" : "_noConvolveAlpha")) { |
| if (bigKernel) { |
| SkISize kernelSize = SkISize::Make(9, 9); |
| SkScalar kernel[81]; |
| for (int i = 0; i < 81; i++) { |
| kernel[i] = SkIntToScalar(1); |
| } |
| kernel[40] = SkIntToScalar(-79); |
| SkScalar gain = 0.3f, bias = SkIntToScalar(100); |
| SkIPoint kernelOffset = SkIPoint::Make(4, 4); |
| fFilter = SkImageFilters::MatrixConvolution(kernelSize, kernel, gain, bias, |
| kernelOffset, tileMode, convolveAlpha, |
| nullptr); |
| } else { |
| 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 = SkImageFilters::MatrixConvolution(kernelSize, kernel, gain, bias, |
| kernelOffset, tileMode, convolveAlpha, |
| nullptr); |
| } |
| } |
| |
| protected: |
| const char* onGetName() override { |
| return fName.c_str(); |
| } |
| |
| void onDraw(int loops, SkCanvas* canvas) override { |
| SkPaint paint; |
| this->setupPaint(&paint); |
| paint.setImageFilter(fFilter); |
| paint.setAntiAlias(true); |
| |
| SkRandom rand; |
| for (int i = 0; i < loops; i++) { |
| SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400, |
| rand.nextUScalar1() * 400); |
| canvas->drawOval(r, paint); |
| } |
| } |
| |
| private: |
| sk_sp<SkImageFilter> fFilter; |
| SkString fName; |
| |
| using INHERITED = Benchmark; |
| }; |
| |
| DEF_BENCH( return new MatrixConvolutionBench(false, SkTileMode::kClamp, true); ) |
| DEF_BENCH( return new MatrixConvolutionBench(false, SkTileMode::kRepeat, true); ) |
| DEF_BENCH( return new MatrixConvolutionBench(false, SkTileMode::kMirror, true); ) |
| DEF_BENCH( return new MatrixConvolutionBench(false, SkTileMode::kDecal, true); ) |
| DEF_BENCH( return new MatrixConvolutionBench(false, SkTileMode::kDecal, false); ) |
| |
| DEF_BENCH( return new MatrixConvolutionBench(true, SkTileMode::kClamp, true); ) |
| DEF_BENCH( return new MatrixConvolutionBench(true, SkTileMode::kRepeat, true); ) |
| DEF_BENCH( return new MatrixConvolutionBench(true, SkTileMode::kMirror, true); ) |
| DEF_BENCH( return new MatrixConvolutionBench(true, SkTileMode::kDecal, true); ) |
| DEF_BENCH( return new MatrixConvolutionBench(true, SkTileMode::kDecal, false); ) |