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 "gm.h" 9#include "SkBlurMask.h" 10#include "SkBlurMaskFilter.h" 11#include "SkCanvas.h" 12#include "SkColorFilter.h" 13#include "SkLayerDrawLooper.h" 14#include "SkPaint.h" 15#include "SkPath.h" 16#include "SkPoint.h" 17#include "SkRect.h" 18#include "SkRRect.h" 19#include "SkString.h" 20#include "SkXfermode.h" 21 22// This GM mimics a blurred RR seen in the wild. 23class BlurRoundRectGM : public skiagm::GM { 24public: 25 BlurRoundRectGM(int width, int height, int radius) 26 : fName("blurroundrect") 27 { 28 SkRect r = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height)); 29 fRRect.setRectXY(r, SkIntToScalar(radius), SkIntToScalar(radius)); 30 fName.appendf("-WH-%ix%i-corner-%i", width, height, radius); 31 } 32 33 BlurRoundRectGM(int width, int height) 34 : fName("blurroundrect") { 35 fName.appendf("-WH-%ix%i-unevenCorners", width, height); 36 SkVector radii[4]; 37 radii[0].set(SkIntToScalar(30), SkIntToScalar(30)); 38 radii[1].set(SkIntToScalar(10), SkIntToScalar(10)); 39 radii[2].set(SkIntToScalar(30), SkIntToScalar(30)); 40 radii[3].set(SkIntToScalar(10), SkIntToScalar(10)); 41 SkRect r = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height)); 42 fRRect.setRectRadii(r, radii); 43 } 44 45 virtual SkString onShortName() SK_OVERRIDE { 46 return fName; 47 } 48 49 virtual SkISize onISize() SK_OVERRIDE { 50 return SkISize::Make(SkScalarCeilToInt(fRRect.rect().width()), 51 SkScalarCeilToInt(fRRect.rect().height())); 52 } 53 54 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { 55 SkLayerDrawLooper::Builder looperBuilder; 56 { 57 SkLayerDrawLooper::LayerInfo info; 58 info.fPaintBits = SkLayerDrawLooper::kMaskFilter_Bit 59 | SkLayerDrawLooper::kColorFilter_Bit; 60 info.fColorMode = SkXfermode::kSrc_Mode; 61 info.fOffset = SkPoint::Make(SkIntToScalar(-1), SkIntToScalar(0)); 62 info.fPostTranslate = false; 63 SkPaint* paint = looperBuilder.addLayerOnTop(info); 64 SkMaskFilter* maskFilter = SkBlurMaskFilter::Create( 65 kNormal_SkBlurStyle, 66 SkBlurMask::ConvertRadiusToSigma(SK_ScalarHalf), 67 SkBlurMaskFilter::kHighQuality_BlurFlag); 68 paint->setMaskFilter(maskFilter)->unref(); 69 SkColorFilter* colorFilter = SkColorFilter::CreateModeFilter(SK_ColorLTGRAY, 70 SkXfermode::kSrcIn_Mode); 71 paint->setColorFilter(colorFilter)->unref(); 72 paint->setColor(SK_ColorGRAY); 73 } 74 { 75 SkLayerDrawLooper::LayerInfo info; 76 looperBuilder.addLayerOnTop(info); 77 } 78 SkPaint paint; 79 canvas->drawRect(fRRect.rect(), paint); 80 81 paint.setLooper(looperBuilder.detachLooper())->unref(); 82 paint.setColor(SK_ColorCYAN); 83 paint.setAntiAlias(true); 84 85 canvas->drawRRect(fRRect, paint); 86 } 87 88private: 89 SkString fName; 90 SkRRect fRRect; 91 92 typedef skiagm::GM INHERITED; 93}; 94 95// Simpler blurred RR test cases where all the radii are the same. 96class SimpleBlurRoundRectGM : public skiagm::GM { 97public: 98 SimpleBlurRoundRectGM() 99 : fName("simpleblurroundrect") { 100 } 101 102protected: 103 virtual SkString onShortName() SK_OVERRIDE { 104 return fName; 105 } 106 107 virtual SkISize onISize() SK_OVERRIDE { 108 return SkISize::Make(950, 950); 109 } 110 111 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { 112 canvas->scale(1.5f, 1.5f); 113 canvas->translate(50,50); 114 115 const float blurRadii[] = { 1,5,10,20 }; 116 const int cornerRadii[] = { 1,5,10,20 }; 117 const SkRect r = SkRect::MakeWH(SkIntToScalar(100), SkIntToScalar(100)); 118 for (size_t i = 0; i < SK_ARRAY_COUNT(blurRadii); ++i) { 119 SkAutoCanvasRestore autoRestore(canvas, true); 120 canvas->translate(0, (r.height() + SkIntToScalar(50)) * i); 121 for (size_t j = 0; j < SK_ARRAY_COUNT(cornerRadii); ++j) { 122 SkMaskFilter* filter = SkBlurMaskFilter::Create( 123 kNormal_SkBlurStyle, 124 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(blurRadii[i])), 125 SkBlurMaskFilter::kHighQuality_BlurFlag); 126 SkPaint paint; 127 paint.setColor(SK_ColorBLACK); 128 paint.setMaskFilter(filter)->unref(); 129 130 SkRRect rrect; 131 rrect.setRectXY(r, SkIntToScalar(cornerRadii[j]), SkIntToScalar(cornerRadii[j])); 132 canvas->drawRRect(rrect, paint); 133 canvas->translate(r.width() + SkIntToScalar(50), 0); 134 } 135 } 136 } 137private: 138 const SkString fName; 139 140 typedef skiagm::GM INHERITED; 141}; 142 143// Create one with dimensions/rounded corners based on the skp 144// 145// TODO(scroggo): Disabled in an attempt to rememdy 146// https://code.google.com/p/skia/issues/detail?id=1801 ('Win7 Test bots all failing GenerateGMs: 147// ran wrong number of tests') 148//DEF_GM(return new BlurRoundRectGM(600, 5514, 6);) 149 150// Rounded rect with two opposite corners with large radii, the other two 151// small. 152DEF_GM(return new BlurRoundRectGM(100, 100);) 153 154DEF_GM(return new SimpleBlurRoundRectGM();) 155