1 /* 2 * Copyright 2011 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 "Resources.h" 11 #include "SkBlurMask.h" 12 #include "SkBlurMaskFilter.h" 13 #include "SkImage.h" 14 #include "SkPath.h" 15 16 DEF_SIMPLE_GM_BG(blurs, canvas, 700, 500, sk_tool_utils::color_to_565(0xFFDDDDDD)) { 17 SkBlurStyle NONE = SkBlurStyle(-999); 18 const struct { 19 SkBlurStyle fStyle; 20 int fCx, fCy; 21 } gRecs[] = { 22 { NONE, 0, 0 }, 23 { kInner_SkBlurStyle, -1, 0 }, 24 { kNormal_SkBlurStyle, 0, 1 }, 25 { kSolid_SkBlurStyle, 0, -1 }, 26 { kOuter_SkBlurStyle, 1, 0 }, 27 }; 28 29 SkPaint paint; 30 paint.setAntiAlias(true); 31 sk_tool_utils::set_portable_typeface(&paint); 32 paint.setTextSize(SkIntToScalar(25)); 33 canvas->translate(SkIntToScalar(-40), SkIntToScalar(0)); 34 35 SkBlurMaskFilter::BlurFlags flags = SkBlurMaskFilter::kNone_BlurFlag; 36 for (int j = 0; j < 2; j++) { 37 canvas->save(); 38 paint.setColor(SK_ColorBLUE); 39 for (size_t i = 0; i < SK_ARRAY_COUNT(gRecs); i++) { 40 if (gRecs[i].fStyle != NONE) { 41 paint.setMaskFilter(SkBlurMaskFilter::Make(gRecs[i].fStyle, 42 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(20)), 43 flags)); 44 } else { 45 paint.setMaskFilter(nullptr); 46 } 47 canvas->drawCircle(SkIntToScalar(200 + gRecs[i].fCx*100), 48 SkIntToScalar(200 + gRecs[i].fCy*100), 49 SkIntToScalar(50), 50 paint); 51 } 52 // draw text 53 { 54 paint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, 55 SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(4)), 56 flags)); 57 SkScalar x = SkIntToScalar(70); 58 SkScalar y = SkIntToScalar(400); 59 paint.setColor(SK_ColorBLACK); 60 canvas->drawString("Hamburgefons Style", x, y, paint); 61 canvas->drawString("Hamburgefons Style", 62 x, y + SkIntToScalar(50), paint); 63 paint.setMaskFilter(nullptr); 64 paint.setColor(SK_ColorWHITE); 65 x -= SkIntToScalar(2); 66 y -= SkIntToScalar(2); 67 canvas->drawString("Hamburgefons Style", x, y, paint); 68 } 69 canvas->restore(); 70 flags = SkBlurMaskFilter::kHighQuality_BlurFlag; 71 canvas->translate(SkIntToScalar(350), SkIntToScalar(0)); 72 } 73 } 74 75 ////////////////////////////////////////////////////////////////////////////////////////////// 76 77 // exercise a special-case of blurs, which is two nested rects. These are drawn specially, 78 // and possibly cached. 79 // 80 // in particular, we want to notice that the 2nd rect draws slightly differently, since it 81 // is translated a fractional amount. 82 // 83 DEF_SIMPLE_GM(blur2rects, canvas, 700, 500) { 84 SkPaint paint; 85 86 paint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, 2.3f)); 87 88 SkRect outer = SkRect::MakeXYWH(10.125f, 10.125f, 100.125f, 100); 89 SkRect inner = SkRect::MakeXYWH(20.25f, 20.125f, 80, 80); 90 SkPath path; 91 path.addRect(outer, SkPath::kCW_Direction); 92 path.addRect(inner, SkPath::kCCW_Direction); 93 94 canvas->drawPath(path, paint); 95 // important to translate by a factional amount to exercise a different "phase" 96 // of the same path w.r.t. the pixel grid 97 SkScalar dx = SkScalarRoundToScalar(path.getBounds().width()) + 14 + 0.25f; 98 canvas->translate(dx, 0); 99 canvas->drawPath(path, paint); 100 } 101 102 DEF_SIMPLE_GM(blur2rectsnonninepatch, canvas, 700, 500) { 103 SkPaint paint; 104 paint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, 4.3f)); 105 106 SkRect outer = SkRect::MakeXYWH(10, 110, 100, 100); 107 SkRect inner = SkRect::MakeXYWH(50, 150, 10, 10); 108 SkPath path; 109 path.addRect(outer, SkPath::kCW_Direction); 110 path.addRect(inner, SkPath::kCW_Direction); 111 canvas->drawPath(path, paint); 112 113 SkScalar dx = SkScalarRoundToScalar(path.getBounds().width()) + 40 + 0.25f; 114 canvas->translate(dx, 0); 115 canvas->drawPath(path, paint); 116 117 // Translate to outside of clip bounds. 118 canvas->translate(-dx, 0); 119 canvas->translate(-30, -150); 120 canvas->drawPath(path, paint); 121 } 122 123 DEF_SIMPLE_GM(BlurDrawImage, canvas, 256, 256) { 124 SkPaint paint; 125 paint.setMaskFilter(SkBlurMaskFilter::Make(kNormal_SkBlurStyle, 10, 0)); 126 canvas->clear(0xFF88FF88); 127 if (auto image = GetResourceAsImage("images/mandrill_512_q075.jpg")) { 128 canvas->scale(0.25, 0.25); 129 canvas->drawImage(image, 256, 256, &paint); 130 } 131 } 132
