Home | History | Annotate | Download | only in bench 
      1 /*
      2  * Copyright 2012 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 #include "SkBenchmark.h"
      8 #include "SkCanvas.h"
      9 #include "SkPaint.h"
     10 #include "SkRandom.h"
     11 #include "SkString.h"
     12 #include "SkMatrixConvolutionImageFilter.h"
     13 
     14 class MatrixConvolutionBench : public SkBenchmark {
     15 public:
     16     MatrixConvolutionBench(void* param, SkMatrixConvolutionImageFilter::TileMode tileMode, bool convolveAlpha)
     17         : INHERITED(param), fName("matrixconvolution") {
     18         SkISize kernelSize = SkISize::Make(3, 3);
     19         SkScalar kernel[9] = {
     20             SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1),
     21             SkIntToScalar( 1), SkIntToScalar(-7), SkIntToScalar( 1),
     22             SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1),
     23         };
     24         SkScalar gain = SkFloatToScalar(0.3f), bias = SkIntToScalar(100);
     25         SkIPoint target = SkIPoint::Make(1, 1);
     26         fFilter = new SkMatrixConvolutionImageFilter(kernelSize, kernel, gain, bias, target, tileMode, convolveAlpha);
     27     }
     28 
     29     ~MatrixConvolutionBench() {
     30         fFilter->unref();
     31     }
     32 
     33 protected:
     34     virtual const char* onGetName() {
     35         return fName.c_str();
     36     }
     37 
     38     virtual void onDraw(SkCanvas* canvas) {
     39         SkPaint paint;
     40         this->setupPaint(&paint);
     41         paint.setAntiAlias(true);
     42         SkRandom rand;
     43         for (int i = 0; i < SkBENCHLOOP(3); i++) {
     44             SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
     45                                       rand.nextUScalar1() * 400);
     46             paint.setImageFilter(fFilter);
     47             canvas->drawOval(r, paint);
     48         }
     49     }
     50 
     51 private:
     52     typedef SkBenchmark INHERITED;
     53     SkMatrixConvolutionImageFilter* fFilter;
     54     SkString fName;
     55 };
     56 
     57 static SkBenchmark* Fact00(void* p) { return new MatrixConvolutionBench(p, SkMatrixConvolutionImageFilter::kClamp_TileMode, true); }
     58 static SkBenchmark* Fact01(void* p) { return new MatrixConvolutionBench(p, SkMatrixConvolutionImageFilter::kRepeat_TileMode, true); }
     59 static SkBenchmark* Fact02(void* p) { return new MatrixConvolutionBench(p, SkMatrixConvolutionImageFilter::kClampToBlack_TileMode, true); }
     60 static SkBenchmark* Fact03(void* p) { return new MatrixConvolutionBench(p, SkMatrixConvolutionImageFilter::kClampToBlack_TileMode, false); }
     61 
     62 static BenchRegistry gReg00(Fact00);
     63 static BenchRegistry gReg01(Fact01);
     64 static BenchRegistry gReg02(Fact02);
     65 static BenchRegistry gReg03(Fact03);
     66