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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" |
11 #include "SkDevice.h" | 11 #include "SkDevice.h" |
12 #include "SkFlattenableBuffers.h" | 12 #include "SkFlattenableBuffers.h" |
13 #include "SkMatrix.h" | 13 #include "SkMatrix.h" |
14 #include "SkPaint.h" | 14 #include "SkPaint.h" |
15 #include "SkShader.h" | 15 #include "SkShader.h" |
16 #include "SkValidationUtils.h" | 16 #include "SkValidationUtils.h" |
17 | 17 |
18 bool SkTileImageFilter::onFilterImage(Proxy* proxy, const SkBitmap& src, const S
kMatrix& ctm, | 18 bool SkTileImageFilter::onFilterImage(Proxy* proxy, const SkBitmap& src, const S
kMatrix& ctm, |
19 SkBitmap* dst, SkIPoint* offset) { | 19 SkBitmap* dst, SkIPoint* offset) { |
20 SkBitmap source = src; | 20 SkBitmap source = src; |
21 SkImageFilter* input = getInput(0); | 21 SkImageFilter* input = getInput(0); |
22 SkIPoint localOffset = SkIPoint::Make(0, 0); | 22 SkIPoint localOffset = SkIPoint::Make(0, 0); |
23 if (input && !input->filterImage(proxy, src, ctm, &source, &localOffset)) { | 23 if (input && !input->filterImage(proxy, src, ctm, &source, &localOffset)) { |
24 return false; | 24 return false; |
25 } | 25 } |
26 | 26 |
27 int w = SkScalarTruncToInt(fDstRect.width()); | 27 SkRect dstRect; |
28 int h = SkScalarTruncToInt(fDstRect.height()); | 28 ctm.mapRect(&dstRect, fDstRect); |
| 29 int w = SkScalarCeilToInt(dstRect.width()); |
| 30 int h = SkScalarCeilToInt(dstRect.height()); |
29 if (!fSrcRect.width() || !fSrcRect.height() || !w || !h) { | 31 if (!fSrcRect.width() || !fSrcRect.height() || !w || !h) { |
30 return false; | 32 return false; |
31 } | 33 } |
32 | 34 |
33 SkIRect srcRect; | 35 SkRect srcRect; |
34 fSrcRect.roundOut(&srcRect); | 36 ctm.mapRect(&srcRect, fSrcRect); |
| 37 SkIRect srcIRect; |
| 38 srcRect.roundOut(&srcIRect); |
35 SkBitmap subset; | 39 SkBitmap subset; |
36 if (!source.extractSubset(&subset, srcRect)) { | 40 SkIRect bounds; |
| 41 source.getBounds(&bounds); |
| 42 if (!srcIRect.intersect(bounds)) { |
| 43 return true; |
| 44 } else if (!source.extractSubset(&subset, srcIRect)) { |
37 return false; | 45 return false; |
38 } | 46 } |
39 | 47 |
40 SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(w, h)); | 48 SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(w, h)); |
41 if (NULL == device.get()) { | 49 if (NULL == device.get()) { |
42 return false; | 50 return false; |
43 } | 51 } |
44 SkIRect bounds; | |
45 source.getBounds(&bounds); | |
46 SkCanvas canvas(device); | 52 SkCanvas canvas(device); |
47 SkPaint paint; | 53 SkPaint paint; |
48 paint.setXfermodeMode(SkXfermode::kSrc_Mode); | 54 paint.setXfermodeMode(SkXfermode::kSrc_Mode); |
49 | 55 |
50 SkAutoTUnref<SkShader> shader(SkShader::CreateBitmapShader(subset, | 56 SkAutoTUnref<SkShader> shader(SkShader::CreateBitmapShader(subset, |
51 SkShader::kRepeat_TileMode, SkShader::kRepeat_
TileMode)); | 57 SkShader::kRepeat_TileMode, SkShader::kRepeat_
TileMode)); |
52 paint.setShader(shader); | 58 paint.setShader(shader); |
53 SkRect dstRect = fDstRect; | |
54 dstRect.offset(SkIntToScalar(localOffset.fX), SkIntToScalar(localOffset.fY))
; | 59 dstRect.offset(SkIntToScalar(localOffset.fX), SkIntToScalar(localOffset.fY))
; |
55 canvas.drawRect(dstRect, paint); | 60 canvas.drawRect(dstRect, paint); |
56 *dst = device->accessBitmap(false); | 61 *dst = device->accessBitmap(false); |
57 return true; | 62 return true; |
58 } | 63 } |
59 | 64 |
60 SkTileImageFilter::SkTileImageFilter(SkFlattenableReadBuffer& buffer) | 65 SkTileImageFilter::SkTileImageFilter(SkFlattenableReadBuffer& buffer) |
61 : INHERITED(1, buffer) { | 66 : INHERITED(1, buffer) { |
62 buffer.readRect(&fSrcRect); | 67 buffer.readRect(&fSrcRect); |
63 buffer.readRect(&fDstRect); | 68 buffer.readRect(&fDstRect); |
64 buffer.validate(buffer.isValid() && SkIsValidRect(fSrcRect) && SkIsValidRect
(fDstRect)); | 69 buffer.validate(buffer.isValid() && SkIsValidRect(fSrcRect) && SkIsValidRect
(fDstRect)); |
65 } | 70 } |
66 | 71 |
67 void SkTileImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const { | 72 void SkTileImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const { |
68 this->INHERITED::flatten(buffer); | 73 this->INHERITED::flatten(buffer); |
69 buffer.writeRect(fSrcRect); | 74 buffer.writeRect(fSrcRect); |
70 buffer.writeRect(fDstRect); | 75 buffer.writeRect(fDstRect); |
71 } | 76 } |
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