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 "bench/Benchmark.h" 9 #include "include/core/SkBitmap.h" 10 #include "include/core/SkCanvas.h" 11 #include "include/effects/SkImageFilters.h" 12 #include "include/utils/SkRandom.h" 13 14 #define FILTER_WIDTH_SMALL 32 15 #define FILTER_HEIGHT_SMALL 32 16 #define FILTER_WIDTH_LARGE 256 17 #define FILTER_HEIGHT_LARGE 256 18 19 class MagnifierBench : public Benchmark { 20 public: MagnifierBench(bool small)21 MagnifierBench(bool small) : 22 fIsSmall(small), fInitialized(false) { 23 } 24 25 protected: onGetName()26 const char* onGetName() override { 27 return fIsSmall ? "magnifier_small" : "magnifier_large"; 28 } 29 onDelayedSetup()30 void onDelayedSetup() override { 31 if (!fInitialized) { 32 make_checkerboard(); 33 fInitialized = true; 34 } 35 } 36 onDraw(int loops,SkCanvas * canvas)37 void onDraw(int loops, SkCanvas* canvas) override { 38 const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; 39 const int h = fIsSmall ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE; 40 SkPaint paint; 41 paint.setImageFilter( 42 SkImageFilters::Magnifier( 43 SkRect::MakeXYWH(SkIntToScalar(w / 4), 44 SkIntToScalar(h / 4), 45 SkIntToScalar(w / 2), 46 SkIntToScalar(h / 2)), 100, nullptr)); 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_SMALL : FILTER_HEIGHT_LARGE; 57 fCheckerboard.allocN32Pixels(w, h); 58 SkCanvas canvas(fCheckerboard); 59 canvas.clear(0x00000000); 60 SkPaint darkPaint; 61 darkPaint.setColor(0xFF804020); 62 SkPaint lightPaint; 63 lightPaint.setColor(0xFF244484); 64 for (int y = 0; y < h; y += 16) { 65 for (int x = 0; x < w; x += 16) { 66 canvas.save(); 67 canvas.translate(SkIntToScalar(x), SkIntToScalar(y)); 68 canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint); 69 canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint); 70 canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint); 71 canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint); 72 canvas.restore(); 73 } 74 } 75 } 76 77 bool fIsSmall; 78 bool fInitialized; 79 SkBitmap fCheckerboard; 80 typedef Benchmark INHERITED; 81 }; 82 83 /////////////////////////////////////////////////////////////////////////////// 84 85 DEF_BENCH( return new MagnifierBench(true); ) 86 DEF_BENCH( return new MagnifierBench(false); ) 87