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1 /* | 1 /* |
2 * Copyright 2012 The Android Open Source Project | 2 * Copyright 2012 The Android Open Source Project |
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 "SkOffsetImageFilter.h" | 8 #include "SkOffsetImageFilter.h" |
9 #include "SkBitmap.h" | 9 #include "SkBitmap.h" |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
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58 canvas.translate(SkIntToScalar(srcOffset.fX - bounds.fLeft), | 58 canvas.translate(SkIntToScalar(srcOffset.fX - bounds.fLeft), |
59 SkIntToScalar(srcOffset.fY - bounds.fTop)); | 59 SkIntToScalar(srcOffset.fY - bounds.fTop)); |
60 canvas.drawBitmap(src, fOffset.x(), fOffset.y(), &paint); | 60 canvas.drawBitmap(src, fOffset.x(), fOffset.y(), &paint); |
61 *result = device->accessBitmap(false); | 61 *result = device->accessBitmap(false); |
62 offset->fX = bounds.fLeft; | 62 offset->fX = bounds.fLeft; |
63 offset->fY = bounds.fTop; | 63 offset->fY = bounds.fTop; |
64 } | 64 } |
65 return true; | 65 return true; |
66 } | 66 } |
67 | 67 |
| 68 void SkOffsetImageFilter::computeFastBounds(const SkRect& src, SkRect* dst) cons
t { |
| 69 if (getInput(0)) { |
| 70 getInput(0)->computeFastBounds(src, dst); |
| 71 } else { |
| 72 *dst = src; |
| 73 } |
| 74 dst->offset(fOffset.fX, fOffset.fY); |
| 75 } |
| 76 |
68 bool SkOffsetImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm
, | 77 bool SkOffsetImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm
, |
69 SkIRect* dst) { | 78 SkIRect* dst) { |
70 SkVector vec; | 79 SkVector vec; |
71 ctm.mapVectors(&vec, &fOffset, 1); | 80 ctm.mapVectors(&vec, &fOffset, 1); |
72 | 81 |
73 *dst = src; | 82 *dst = src; |
74 dst->offset(SkScalarRoundToInt(vec.fX), SkScalarRoundToInt(vec.fY)); | 83 dst->offset(SkScalarRoundToInt(vec.fX), SkScalarRoundToInt(vec.fY)); |
75 return true; | 84 return true; |
76 } | 85 } |
77 | 86 |
78 void SkOffsetImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const { | 87 void SkOffsetImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const { |
79 this->INHERITED::flatten(buffer); | 88 this->INHERITED::flatten(buffer); |
80 buffer.writePoint(fOffset); | 89 buffer.writePoint(fOffset); |
81 } | 90 } |
82 | 91 |
83 SkOffsetImageFilter::SkOffsetImageFilter(SkScalar dx, SkScalar dy, SkImageFilter
* input, | 92 SkOffsetImageFilter::SkOffsetImageFilter(SkScalar dx, SkScalar dy, SkImageFilter
* input, |
84 const CropRect* cropRect) : INHERITED(i
nput, cropRect) { | 93 const CropRect* cropRect) : INHERITED(i
nput, cropRect) { |
85 fOffset.set(dx, dy); | 94 fOffset.set(dx, dy); |
86 } | 95 } |
87 | 96 |
88 SkOffsetImageFilter::SkOffsetImageFilter(SkFlattenableReadBuffer& buffer) | 97 SkOffsetImageFilter::SkOffsetImageFilter(SkFlattenableReadBuffer& buffer) |
89 : INHERITED(1, buffer) { | 98 : INHERITED(1, buffer) { |
90 buffer.readPoint(&fOffset); | 99 buffer.readPoint(&fOffset); |
91 buffer.validate(SkScalarIsFinite(fOffset.fX) && | 100 buffer.validate(SkScalarIsFinite(fOffset.fX) && |
92 SkScalarIsFinite(fOffset.fY)); | 101 SkScalarIsFinite(fOffset.fY)); |
93 } | 102 } |
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