BlurImageFilterBench.cpp revision c45ece5f7f53e2d1dacfe71d407ff495dfdc0f58
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#define BLUR_SIGMA_HUGE 80.0f 24 25class BlurImageFilterBench : public SkBenchmark { 26public: 27 BlurImageFilterBench(SkScalar sigmaX, SkScalar sigmaY, bool small) : 28 fIsSmall(small), fInitialized(false), fSigmaX(sigmaX), fSigmaY(sigmaY) { 29 fName.printf("blur_image_filter_%s_%.2f_%.2f", fIsSmall ? "small" : "large", 30 SkScalarToFloat(sigmaX), SkScalarToFloat(sigmaY)); 31 } 32 33protected: 34 virtual const char* onGetName() SK_OVERRIDE { 35 return fName.c_str(); 36 } 37 38 virtual void onPreDraw() SK_OVERRIDE { 39 if (!fInitialized) { 40 make_checkerboard(); 41 fInitialized = true; 42 } 43 } 44 45 virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { 46 SkPaint paint; 47 paint.setImageFilter(new SkBlurImageFilter(fSigmaX, fSigmaY))->unref(); 48 49 for (int i = 0; i < loops; i++) { 50 canvas->drawBitmap(fCheckerboard, 0, 0, &paint); 51 } 52 } 53 54private: 55 void make_checkerboard() { 56 const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; 57 const int h = fIsSmall ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE; 58 fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, w, h); 59 fCheckerboard.allocPixels(); 60 SkBitmapDevice device(fCheckerboard); 61 SkCanvas canvas(&device); 62 canvas.clear(0x00000000); 63 SkPaint darkPaint; 64 darkPaint.setColor(0xFF804020); 65 SkPaint lightPaint; 66 lightPaint.setColor(0xFF244484); 67 for (int y = 0; y < h; y += 16) { 68 for (int x = 0; x < w; x += 16) { 69 canvas.save(); 70 canvas.translate(SkIntToScalar(x), SkIntToScalar(y)); 71 canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint); 72 canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint); 73 canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint); 74 canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint); 75 canvas.restore(); 76 } 77 } 78 } 79 80 SkString fName; 81 bool fIsSmall; 82 bool fInitialized; 83 SkBitmap fCheckerboard; 84 SkScalar fSigmaX, fSigmaY; 85 typedef SkBenchmark INHERITED; 86}; 87 88DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, 0, false);) 89DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, 0, false);) 90DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_LARGE, false);) 91DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_SMALL, false);) 92DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, true);) 93DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false);) 94DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true);) 95DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false);) 96DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, true);) 97DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, false);) 98