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 "sk_tool_utils.h" 10 #include "SkBlurMask.h" 11 #include "SkBlurMaskFilter.h" 12 #include "SkCanvas.h" 13 #include "SkColorFilter.h" 14 #include "SkLayerDrawLooper.h" 15 #include "SkPaint.h" 16 #include "SkPath.h" 17 #include "SkPoint.h" 18 #include "SkRect.h" 19 #include "SkRRect.h" 20 #include "SkString.h" 21 22 // This GM mimics a blurred RR seen in the wild. 23 class BlurRoundRectGM : public skiagm::GM { 24 public: 25 BlurRoundRectGM(int width, int height) 26 : fName("blurroundrect"), fWidth(width), fHeight(height) { 27 fName.appendf("-WH-%ix%i-unevenCorners", width, height); 28 } 29 30 SkString onShortName() override { 31 return fName; 32 } 33 34 SkISize onISize() override { 35 return SkISize::Make(fWidth, fHeight); 36 } 37 38 void onOnceBeforeDraw() override { 39 SkVector radii[4]; 40 radii[0].set(SkIntToScalar(30), SkIntToScalar(30)); 41 radii[1].set(SkIntToScalar(10), SkIntToScalar(10)); 42 radii[2].set(SkIntToScalar(30), SkIntToScalar(30)); 43 radii[3].set(SkIntToScalar(10), SkIntToScalar(10)); 44 SkRect r = SkRect::MakeWH(SkIntToScalar(fWidth), SkIntToScalar(fHeight)); 45 fRRect.setRectRadii(r, radii); 46 } 47 48 void onDraw(SkCanvas* canvas) override { 49 SkLayerDrawLooper::Builder looperBuilder; 50 { 51 SkLayerDrawLooper::LayerInfo info; 52 info.fPaintBits = SkLayerDrawLooper::kMaskFilter_Bit 53 | SkLayerDrawLooper::kColorFilter_Bit; 54 info.fColorMode = SkBlendMode::kSrc; 55 info.fOffset = SkPoint::Make(SkIntToScalar(-1), SkIntToScalar(0)); 56 info.fPostTranslate = false; 57 SkPaint* paint = looperBuilder.addLayerOnTop(info); 58 paint->setMaskFilter(SkBlurMaskFilter::Make( 59 kNormal_SkBlurStyle, 60 SkBlurMask::ConvertRadiusToSigma(SK_ScalarHalf), 61 SkBlurMaskFilter::kHighQuality_BlurFlag)); 62 paint->setColorFilter(SkColorFilter::MakeModeFilter( 63 sk_tool_utils::color_to_565(SK_ColorLTGRAY), 64 SkBlendMode::kSrcIn)); 65 paint->setColor(sk_tool_utils::color_to_565(SK_ColorGRAY)); 66 } 67 { 68 SkLayerDrawLooper::LayerInfo info; 69 looperBuilder.addLayerOnTop(info); 70 } 71 SkPaint paint; 72 canvas->drawRect(fRRect.rect(), paint); 73 74 paint.setLooper(looperBuilder.detach()); 75 paint.setColor(SK_ColorCYAN); 76 paint.setAntiAlias(true); 77 78 canvas->drawRRect(fRRect, paint); 79 } 80 81 private: 82 SkString fName; 83 SkRRect fRRect; 84 int fWidth, fHeight; 85 86 typedef skiagm::GM INHERITED; 87 }; 88 89 #include "SkGradientShader.h" 90 /* 91 * Spits out a dummy gradient to test blur with shader on paint 92 */ 93 static sk_sp<SkShader> MakeRadial() { 94 SkPoint pts[2] = { 95 { 0, 0 }, 96 { SkIntToScalar(100), SkIntToScalar(100) } 97 }; 98 SkShader::TileMode tm = SkShader::kClamp_TileMode; 99 const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, }; 100 const SkScalar pos[] = { SK_Scalar1/4, SK_Scalar1*3/4 }; 101 SkMatrix scale; 102 scale.setScale(0.5f, 0.5f); 103 scale.postTranslate(5.f, 5.f); 104 SkPoint center0, center1; 105 center0.set(SkScalarAve(pts[0].fX, pts[1].fX), 106 SkScalarAve(pts[0].fY, pts[1].fY)); 107 center1.set(SkScalarInterp(pts[0].fX, pts[1].fX, SkIntToScalar(3)/5), 108 SkScalarInterp(pts[0].fY, pts[1].fY, SkIntToScalar(1)/4)); 109 return SkGradientShader::MakeTwoPointConical(center1, (pts[1].fX - pts[0].fX) / 7, 110 center0, (pts[1].fX - pts[0].fX) / 2, 111 colors, pos, SK_ARRAY_COUNT(colors), tm, 112 0, &scale); 113 } 114 115 // Simpler blurred RR test cases where all the radii are the same. 116 class SimpleBlurRoundRectGM : public skiagm::GM { 117 public: 118 SimpleBlurRoundRectGM() 119 : fName("simpleblurroundrect") { 120 } 121 122 protected: 123 124 SkString onShortName() override { 125 return fName; 126 } 127 128 SkISize onISize() override { 129 return SkISize::Make(1000, 500); 130 } 131 132 void onDraw(SkCanvas* canvas) override { 133 canvas->scale(1.5f, 1.5f); 134 canvas->translate(50,50); 135 136 const float blurRadii[] = { 1,5,10,20 }; 137 const int cornerRadii[] = { 1,5,10,20 }; 138 const SkRect r = SkRect::MakeWH(SkIntToScalar(25), SkIntToScalar(25)); 139 for (size_t i = 0; i < SK_ARRAY_COUNT(blurRadii); ++i) { 140 SkAutoCanvasRestore autoRestore(canvas, true); 141 canvas->translate(0, (r.height() + SkIntToScalar(50)) * i); 142 for (size_t j = 0; j < SK_ARRAY_COUNT(cornerRadii); ++j) { 143 for (int k = 0; k <= 1; k++) { 144 SkPaint paint; 145 paint.setColor(SK_ColorBLACK); 146 paint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, 147 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(blurRadii[i])), 148 SkBlurMaskFilter::kHighQuality_BlurFlag)); 149 150 bool useRadial = SkToBool(k); 151 if (useRadial) { 152 paint.setShader(MakeRadial()); 153 } 154 155 SkRRect rrect; 156 rrect.setRectXY(r, SkIntToScalar(cornerRadii[j]), 157 SkIntToScalar(cornerRadii[j])); 158 canvas->drawRRect(rrect, paint); 159 canvas->translate(r.width() + SkIntToScalar(50), 0); 160 } 161 } 162 } 163 } 164 private: 165 const SkString fName; 166 167 typedef skiagm::GM INHERITED; 168 }; 169 170 // Create one with dimensions/rounded corners based on the skp 171 // 172 // TODO(scroggo): Disabled in an attempt to rememdy 173 // https://code.google.com/p/skia/issues/detail?id=1801 ('Win7 Test bots all failing GenerateGMs: 174 // ran wrong number of tests') 175 //DEF_GM(return new BlurRoundRectGM(600, 5514, 6);) 176 177 // Rounded rect with two opposite corners with large radii, the other two 178 // small. 179 DEF_GM(return new BlurRoundRectGM(100, 100);) 180 181 DEF_GM(return new SimpleBlurRoundRectGM();) 182
