1 /* 2 * Copyright 2013 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 8 #include "SkBenchmark.h" 9 #include "SkBitmapDevice.h" 10 #include "SkBlurImageFilter.h" 11 #include "SkCanvas.h" 12 #include "SkPaint.h" 13 #include "SkRandom.h" 14 #include "SkShader.h" 15 #include "SkString.h" 16 17 #define FILTER_WIDTH_SMALL 32 18 #define FILTER_HEIGHT_SMALL 32 19 #define FILTER_WIDTH_LARGE 256 20 #define FILTER_HEIGHT_LARGE 256 21 #define BLUR_SIGMA_SMALL 1.0f 22 #define BLUR_SIGMA_LARGE 10.0f 23 24 class BlurImageFilterBench : public SkBenchmark { 25 public: BlurImageFilterBench(SkScalar sigmaX,SkScalar sigmaY,bool small)26 BlurImageFilterBench(SkScalar sigmaX, SkScalar sigmaY, bool small) : 27 fIsSmall(small), fInitialized(false), fSigmaX(sigmaX), fSigmaY(sigmaY) { 28 fName.printf("blur_image_filter_%s_%.2f_%.2f", fIsSmall ? "small" : "large", 29 SkScalarToFloat(sigmaX), SkScalarToFloat(sigmaY)); 30 } 31 32 protected: onGetName()33 virtual const char* onGetName() SK_OVERRIDE { 34 return fName.c_str(); 35 } 36 onPreDraw()37 virtual void onPreDraw() SK_OVERRIDE { 38 if (!fInitialized) { 39 make_checkerboard(); 40 fInitialized = true; 41 } 42 } 43 onDraw(const int loops,SkCanvas * canvas)44 virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { 45 SkPaint paint; 46 paint.setImageFilter(new SkBlurImageFilter(fSigmaX, fSigmaY))->unref(); 47 48 for (int i = 0; i < loops; i++) { 49 canvas->drawBitmap(fCheckerboard, 0, 0, &paint); 50 } 51 } 52 53 private: make_checkerboard()54 void make_checkerboard() { 55 const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; 56 const int h = fIsSmall ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE; 57 fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, w, h); 58 fCheckerboard.allocPixels(); 59 SkBitmapDevice device(fCheckerboard); 60 SkCanvas canvas(&device); 61 canvas.clear(0x00000000); 62 SkPaint darkPaint; 63 darkPaint.setColor(0xFF804020); 64 SkPaint lightPaint; 65 lightPaint.setColor(0xFF244484); 66 for (int y = 0; y < h; y += 16) { 67 for (int x = 0; x < w; x += 16) { 68 canvas.save(); 69 canvas.translate(SkIntToScalar(x), SkIntToScalar(y)); 70 canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint); 71 canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint); 72 canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint); 73 canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint); 74 canvas.restore(); 75 } 76 } 77 } 78 79 SkString fName; 80 bool fIsSmall; 81 bool fInitialized; 82 SkBitmap fCheckerboard; 83 SkScalar fSigmaX, fSigmaY; 84 typedef SkBenchmark INHERITED; 85 }; 86 87 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, 0, false);) 88 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, 0, false);) 89 DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_LARGE, false);) 90 DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_SMALL, false);) 91 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, true);) 92 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false);) 93 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true);) 94 DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false);) 95