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 "Benchmark.h" 9 #include "SkCanvas.h" 10 #include "SkMagnifierImageFilter.h" 11 #include "SkRandom.h" 12 13 #define FILTER_WIDTH_SMALL 32 14 #define FILTER_HEIGHT_SMALL 32 15 #define FILTER_WIDTH_LARGE 256 16 #define FILTER_HEIGHT_LARGE 256 17 18 class MagnifierBench : public Benchmark { 19 public: 20 MagnifierBench(bool small) : 21 fIsSmall(small), fInitialized(false) { 22 } 23 24 protected: 25 const char* onGetName() override { 26 return fIsSmall ? "magnifier_small" : "magnifier_large"; 27 } 28 29 void onPreDraw() override { 30 if (!fInitialized) { 31 make_checkerboard(); 32 fInitialized = true; 33 } 34 } 35 36 void onDraw(const int loops, SkCanvas* canvas) override { 37 const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; 38 const int h = fIsSmall ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE; 39 SkPaint paint; 40 paint.setImageFilter( 41 SkMagnifierImageFilter::Create( 42 SkRect::MakeXYWH(SkIntToScalar(w / 4), 43 SkIntToScalar(h / 4), 44 SkIntToScalar(w / 2), 45 SkIntToScalar(h / 2)), 100))->unref(); 46 47 for (int i = 0; i < loops; i++) { 48 canvas->drawBitmap(fCheckerboard, 0, 0, &paint); 49 } 50 } 51 52 private: 53 void make_checkerboard() { 54 const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE; 55 const int h = fIsSmall ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE; 56 fCheckerboard.allocN32Pixels(w, h); 57 SkCanvas canvas(fCheckerboard); 58 canvas.clear(0x00000000); 59 SkPaint darkPaint; 60 darkPaint.setColor(0xFF804020); 61 SkPaint lightPaint; 62 lightPaint.setColor(0xFF244484); 63 for (int y = 0; y < h; y += 16) { 64 for (int x = 0; x < w; x += 16) { 65 canvas.save(); 66 canvas.translate(SkIntToScalar(x), SkIntToScalar(y)); 67 canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint); 68 canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint); 69 canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint); 70 canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint); 71 canvas.restore(); 72 } 73 } 74 } 75 76 bool fIsSmall; 77 bool fInitialized; 78 SkBitmap fCheckerboard; 79 typedef Benchmark INHERITED; 80 }; 81 82 /////////////////////////////////////////////////////////////////////////////// 83 84 DEF_BENCH( return new MagnifierBench(true); ) 85 DEF_BENCH( return new MagnifierBench(false); ) 86