blurroundrect.cpp revision a90c6803865766d28e92091f56f718f5e41fe80f
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", 36 width, height); 37 SkVector radii[4]; 38 radii[0].set(SkIntToScalar(30), SkIntToScalar(30)); 39 radii[1].set(SkIntToScalar(10), SkIntToScalar(10)); 40 radii[2].set(SkIntToScalar(30), SkIntToScalar(30)); 41 radii[3].set(SkIntToScalar(10), SkIntToScalar(10)); 42 SkRect r = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height)); 43 fRRect.setRectRadii(r, radii); 44 } 45 46 virtual uint32_t onGetFlags() const SK_OVERRIDE { 47 return kSkipTiled_Flag; 48 } 49 50 virtual SkString onShortName() SK_OVERRIDE { 51 return fName; 52 } 53 54 virtual SkISize onISize() SK_OVERRIDE { 55 return SkISize::Make(SkScalarCeilToInt(fRRect.rect().width()), 56 SkScalarCeilToInt(fRRect.rect().height())); 57 } 58 59 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { 60 SkLayerDrawLooper::Builder looperBuilder; 61 { 62 SkLayerDrawLooper::LayerInfo info; 63 info.fPaintBits = SkLayerDrawLooper::kMaskFilter_Bit 64 | SkLayerDrawLooper::kColorFilter_Bit; 65 info.fColorMode = SkXfermode::kSrc_Mode; 66 info.fOffset = SkPoint::Make(SkIntToScalar(-1), SkIntToScalar(0)); 67 info.fPostTranslate = false; 68 SkPaint* paint = looperBuilder.addLayerOnTop(info); 69 SkMaskFilter* maskFilter = SkBlurMaskFilter::Create( 70 kNormal_SkBlurStyle, 71 SkBlurMask::ConvertRadiusToSigma(SK_ScalarHalf), 72 SkBlurMaskFilter::kHighQuality_BlurFlag); 73 paint->setMaskFilter(maskFilter)->unref(); 74 SkColorFilter* colorFilter = SkColorFilter::CreateModeFilter(SK_ColorLTGRAY, 75 SkXfermode::kSrcIn_Mode); 76 paint->setColorFilter(colorFilter)->unref(); 77 paint->setColor(SK_ColorGRAY); 78 } 79 { 80 SkLayerDrawLooper::LayerInfo info; 81 looperBuilder.addLayerOnTop(info); 82 } 83 SkPaint paint; 84 canvas->drawRect(fRRect.rect(), paint); 85 86 paint.setLooper(looperBuilder.detachLooper())->unref(); 87 paint.setColor(SK_ColorCYAN); 88 paint.setAntiAlias(true); 89 90 canvas->drawRRect(fRRect, paint); 91 } 92 93private: 94 SkString fName; 95 SkRRect fRRect; 96 97 typedef skiagm::GM INHERITED; 98}; 99 100// Simpler blurred RR test cases where all the radii are the same. 101class SimpleBlurRoundRectGM : public skiagm::GM { 102public: 103 SimpleBlurRoundRectGM() 104 : fName("simpleblurroundrect") { 105 } 106 107protected: 108 virtual uint32_t onGetFlags() const SK_OVERRIDE { 109 return kSkipTiled_Flag; 110 } 111 112 virtual SkString onShortName() SK_OVERRIDE { 113 return fName; 114 } 115 116 virtual SkISize onISize() SK_OVERRIDE { 117 return SkISize::Make(950, 950); 118 } 119 120 virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { 121 canvas->scale(1.5f, 1.5f); 122 canvas->translate(50,50); 123 124 const float blurRadii[] = { 1,5,10,20 }; 125 const int cornerRadii[] = { 1,5,10,20 }; 126 const SkRect r = SkRect::MakeWH(SkIntToScalar(100), SkIntToScalar(100)); 127 for (size_t i = 0; i < SK_ARRAY_COUNT(blurRadii); ++i) { 128 SkAutoCanvasRestore autoRestore(canvas, true); 129 canvas->translate(0, (r.height() + SkIntToScalar(50)) * i); 130 for (size_t j = 0; j < SK_ARRAY_COUNT(cornerRadii); ++j) { 131 SkMaskFilter* filter = SkBlurMaskFilter::Create( 132 kNormal_SkBlurStyle, 133 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(blurRadii[i])), 134 SkBlurMaskFilter::kHighQuality_BlurFlag); 135 SkPaint paint; 136 paint.setColor(SK_ColorBLACK); 137 paint.setMaskFilter(filter)->unref(); 138 139 SkRRect rrect; 140 rrect.setRectXY(r, SkIntToScalar(cornerRadii[j]), SkIntToScalar(cornerRadii[j])); 141 canvas->drawRRect(rrect, paint); 142 canvas->translate(r.width() + SkIntToScalar(50), 0); 143 } 144 } 145 } 146private: 147 const SkString fName; 148 149 typedef skiagm::GM INHERITED; 150}; 151 152// Create one with dimensions/rounded corners based on the skp 153// 154// TODO(scroggo): Disabled in an attempt to rememdy 155// https://code.google.com/p/skia/issues/detail?id=1801 ('Win7 Test bots all failing GenerateGMs: 156// ran wrong number of tests') 157//DEF_GM(return new BlurRoundRectGM(600, 5514, 6);) 158 159// Rounded rect with two opposite corners with large radii, the other two 160// small. 161DEF_GM(return new BlurRoundRectGM(100, 100);) 162 163DEF_GM(return new SimpleBlurRoundRectGM();) 164