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 "SkBicubicImageFilter.h" 10 #include "SkCanvas.h" 11 #include "SkShader.h" 12 #include "SkString.h" 13 14 // This bench exercises SkBicubicImageFilter, upsampling a 40x40 input to 15 // 100x100, 400x100, 100x400, and 400x400. 16 17 class BicubicBench : public Benchmark { 18 SkSize fScale; 19 SkString fName; 20 21 public: 22 BicubicBench(float x, float y) 23 : fScale(SkSize::Make(x, y)) { 24 fName.printf("bicubic_%gx%g", 25 SkScalarToFloat(fScale.fWidth), SkScalarToFloat(fScale.fHeight)); 26 } 27 28 protected: 29 virtual const char* onGetName() { 30 return fName.c_str(); 31 } 32 33 virtual void onDraw(const int loops, SkCanvas* canvas) { 34 SkPaint paint; 35 this->setupPaint(&paint); 36 37 paint.setAntiAlias(true); 38 39 SkRect r = SkRect::MakeWH(40, 40); 40 SkAutoTUnref<SkImageFilter> bicubic(SkBicubicImageFilter::CreateMitchell(fScale)); 41 paint.setImageFilter(bicubic); 42 43 for (int i = 0; i < loops; i++) { 44 canvas->save(); 45 canvas->clipRect(r); 46 canvas->drawOval(r, paint); 47 canvas->restore(); 48 } 49 } 50 51 private: 52 typedef Benchmark INHERITED; 53 }; 54 55 DEF_BENCH( return new BicubicBench(10.0f, 10.0f); ) 56 DEF_BENCH( return new BicubicBench(2.5f, 10.0f); ) 57 DEF_BENCH( return new BicubicBench(10.0f, 2.5f); ) 58 DEF_BENCH( return new BicubicBench(2.5f, 2.5f); ) 59
