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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkTileImageFilter.h" | 8 #include "SkTileImageFilter.h" |
9 #include "SkBitmap.h" | 9 #include "SkBitmap.h" |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
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47 if (!fSrcRect.width() || !fSrcRect.height() || !w || !h) { | 47 if (!fSrcRect.width() || !fSrcRect.height() || !w || !h) { |
48 return false; | 48 return false; |
49 } | 49 } |
50 | 50 |
51 SkRect srcRect; | 51 SkRect srcRect; |
52 ctx.ctm().mapRect(&srcRect, fSrcRect); | 52 ctx.ctm().mapRect(&srcRect, fSrcRect); |
53 SkIRect srcIRect; | 53 SkIRect srcIRect; |
54 srcRect.roundOut(&srcIRect); | 54 srcRect.roundOut(&srcIRect); |
55 srcIRect.offset(-srcOffset); | 55 srcIRect.offset(-srcOffset); |
56 SkBitmap subset; | 56 SkBitmap subset; |
57 SkIRect bounds; | 57 SkIRect srcBounds; |
58 source.getBounds(&bounds); | 58 source.getBounds(&srcBounds); |
59 | 59 |
60 if (!srcIRect.intersect(bounds)) { | 60 if (!SkIRect::Intersects(srcIRect, srcBounds)) { |
61 offset->fX = offset->fY = 0; | 61 offset->fX = offset->fY = 0; |
62 return true; | 62 return true; |
63 } else if (!source.extractSubset(&subset, srcIRect)) { | |
64 return false; | |
65 } | 63 } |
| 64 if (srcBounds.contains(srcIRect)) { |
| 65 if (!source.extractSubset(&subset, srcIRect)) { |
| 66 return false; |
| 67 } |
| 68 } else { |
| 69 SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(srcIRect.width(), |
| 70 srcIRect.height(), |
| 71 kPossible_TileUsag
e)); |
| 72 if (!device) { |
| 73 return false; |
| 74 } |
| 75 SkCanvas canvas(device); |
| 76 canvas.drawBitmap(src, SkIntToScalar(srcOffset.x()), |
| 77 SkIntToScalar(srcOffset.y())); |
| 78 subset = device->accessBitmap(false); |
| 79 } |
| 80 SkASSERT(subset.width() == srcIRect.width()); |
| 81 SkASSERT(subset.height() == srcIRect.height()); |
66 | 82 |
67 SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(w, h)); | 83 SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(w, h)); |
68 if (nullptr == device.get()) { | 84 if (nullptr == device.get()) { |
69 return false; | 85 return false; |
70 } | 86 } |
71 SkCanvas canvas(device); | 87 SkCanvas canvas(device); |
72 SkPaint paint; | 88 SkPaint paint; |
73 paint.setXfermodeMode(SkXfermode::kSrc_Mode); | 89 paint.setXfermodeMode(SkXfermode::kSrc_Mode); |
74 | 90 |
75 SkMatrix shaderMatrix; | |
76 shaderMatrix.setTranslate(SkIntToScalar(srcOffset.fX), | |
77 SkIntToScalar(srcOffset.fY)); | |
78 SkAutoTUnref<SkShader> shader(SkShader::CreateBitmapShader(subset, | 91 SkAutoTUnref<SkShader> shader(SkShader::CreateBitmapShader(subset, |
79 SkShader::kRepeat_TileMode, SkShader::kRepeat_
TileMode, | 92 SkShader::kRepeat_TileMode, SkShader::kRepeat_
TileMode)); |
80 &shaderMatrix)); | |
81 paint.setShader(shader); | 93 paint.setShader(shader); |
82 canvas.translate(-dstRect.fLeft, -dstRect.fTop); | 94 canvas.translate(-dstRect.fLeft, -dstRect.fTop); |
83 canvas.drawRect(dstRect, paint); | 95 canvas.drawRect(dstRect, paint); |
84 *dst = device->accessBitmap(false); | 96 *dst = device->accessBitmap(false); |
85 offset->fX = dstIRect.fLeft; | 97 offset->fX = dstIRect.fLeft; |
86 offset->fY = dstIRect.fTop; | 98 offset->fY = dstIRect.fTop; |
87 return true; | 99 return true; |
88 } | 100 } |
89 | 101 |
90 void SkTileImageFilter::onFilterNodeBounds(const SkIRect& src, const SkMatrix& c
tm, | 102 void SkTileImageFilter::onFilterNodeBounds(const SkIRect& src, const SkMatrix& c
tm, |
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135 str->appendf(" dst: %.2f %.2f %.2f %.2f", | 147 str->appendf(" dst: %.2f %.2f %.2f %.2f", |
136 fDstRect.fLeft, fDstRect.fTop, fDstRect.fRight, fDstRect.fBotto
m); | 148 fDstRect.fLeft, fDstRect.fTop, fDstRect.fRight, fDstRect.fBotto
m); |
137 if (this->getInput(0)) { | 149 if (this->getInput(0)) { |
138 str->appendf("input: ("); | 150 str->appendf("input: ("); |
139 this->getInput(0)->toString(str); | 151 this->getInput(0)->toString(str); |
140 str->appendf(")"); | 152 str->appendf(")"); |
141 } | 153 } |
142 str->append(")"); | 154 str->append(")"); |
143 } | 155 } |
144 #endif | 156 #endif |
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