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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 "SkBitmapSource.h" | 8 #include "SkBitmapSource.h" |
9 #include "SkDevice.h" | |
10 #include "SkCanvas.h" | |
11 #include "SkFlattenableBuffers.h" | |
12 #include "SkValidationUtils.h" | |
9 | 13 |
10 SkBitmapSource::SkBitmapSource(const SkBitmap& bitmap) | 14 SkBitmapSource::SkBitmapSource(const SkBitmap& bitmap) |
11 : INHERITED(0, 0), | 15 : INHERITED(0, 0), |
12 fBitmap(bitmap) { | 16 fBitmap(bitmap), |
17 fSrcRect(SkRect::MakeWH(SkIntToScalar(bitmap.width()), | |
18 SkIntToScalar(bitmap.height()))), | |
19 fDstRect(fSrcRect) { | |
20 } | |
21 | |
22 SkBitmapSource::SkBitmapSource(const SkBitmap& bitmap, const SkRect& srcRect, co nst SkRect& dstRect) | |
23 : INHERITED(0, 0), | |
24 fBitmap(bitmap), | |
25 fSrcRect(srcRect), | |
26 fDstRect(dstRect) { | |
13 } | 27 } |
14 | 28 |
15 SkBitmapSource::SkBitmapSource(SkFlattenableReadBuffer& buffer) | 29 SkBitmapSource::SkBitmapSource(SkFlattenableReadBuffer& buffer) |
16 : INHERITED(0, buffer) { | 30 : INHERITED(0, buffer) { |
17 fBitmap.unflatten(buffer); | 31 fBitmap.unflatten(buffer); |
32 buffer.readRect(&fSrcRect); | |
33 buffer.readRect(&fDstRect); | |
34 buffer.validate(SkIsValidRect(fSrcRect) && SkIsValidRect(fDstRect)); | |
18 } | 35 } |
19 | 36 |
20 void SkBitmapSource::flatten(SkFlattenableWriteBuffer& buffer) const { | 37 void SkBitmapSource::flatten(SkFlattenableWriteBuffer& buffer) const { |
21 this->INHERITED::flatten(buffer); | 38 this->INHERITED::flatten(buffer); |
22 fBitmap.flatten(buffer); | 39 fBitmap.flatten(buffer); |
40 buffer.writeRect(fSrcRect); | |
41 buffer.writeRect(fDstRect); | |
23 } | 42 } |
24 | 43 |
25 bool SkBitmapSource::onFilterImage(Proxy*, const SkBitmap&, const SkMatrix&, | 44 bool SkBitmapSource::onFilterImage(Proxy* proxy, const SkBitmap&, const SkMatrix & matrix, |
26 SkBitmap* result, SkIPoint* offset) { | 45 SkBitmap* result, SkIPoint* offset) { |
27 *result = fBitmap; | 46 SkRect bounds, dstRect; |
47 fBitmap.getBounds(&bounds); | |
48 matrix.mapRect(&dstRect, fDstRect); | |
49 if (fSrcRect == bounds && dstRect == bounds) { | |
robertphillips
2013/12/09 16:23:01
// no portion cropped out
Stephen White
2013/12/09 17:04:25
Done.
| |
50 *result = fBitmap; | |
51 return true; | |
52 } | |
53 SkIRect dstIRect; | |
54 dstRect.roundOut(&dstIRect); | |
55 | |
56 SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(dstIRect.width(), dstI Rect.height())); | |
57 if (NULL == device.get()) { | |
58 return false; | |
59 } | |
60 | |
61 SkCanvas canvas(device.get()); | |
62 SkPaint paint; | |
63 | |
64 // Subtract off the integer component of the translation (will be applied in loc, below). | |
65 dstRect.offset(-SkIntToScalar(dstIRect.fLeft), -SkIntToScalar(dstIRect.fTop) ); | |
66 paint.setXfermodeMode(SkXfermode::kSrc_Mode); | |
67 // FIXME: this probably shouldn't be necessary, but drawBitmapRectToRect ass erts | |
68 // None filtering when it's translate-only | |
robertphillips
2013/12/09 16:23:01
\n somewhere?
Stephen White
2013/12/09 17:04:25
Done.
| |
69 paint.setFilterLevel(fSrcRect.width() == dstRect.width() && fSrcRect.height( ) == dstRect.height() ? SkPaint::kNone_FilterLevel : SkPaint::kMedium_FilterLeve l); | |
70 canvas.drawBitmapRectToRect(fBitmap, &fSrcRect, dstRect, &paint); | |
71 | |
72 *result = device.get()->accessBitmap(false); | |
73 offset->fX += dstIRect.fLeft; | |
74 offset->fY += dstIRect.fTop; | |
28 return true; | 75 return true; |
29 } | 76 } |
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