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1 /* | 1 /* |
2 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> | 2 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
3 * Copyright (C) 2013 Google Inc. All rights reserved. | 3 * Copyright (C) 2013 Google Inc. All rights reserved. |
4 * | 4 * |
5 * This library is free software; you can redistribute it and/or | 5 * This library is free software; you can redistribute it and/or |
6 * modify it under the terms of the GNU Library General Public | 6 * modify it under the terms of the GNU Library General Public |
7 * License as published by the Free Software Foundation; either | 7 * License as published by the Free Software Foundation; either |
8 * version 2 of the License, or (at your option) any later version. | 8 * version 2 of the License, or (at your option) any later version. |
9 * | 9 * |
10 * This library is distributed in the hope that it will be useful, | 10 * This library is distributed in the hope that it will be useful, |
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 * Library General Public License for more details. | 13 * Library General Public License for more details. |
14 * | 14 * |
15 * You should have received a copy of the GNU Library General Public License | 15 * You should have received a copy of the GNU Library General Public License |
16 * along with this library; see the file COPYING.LIB. If not, write to | 16 * along with this library; see the file COPYING.LIB. If not, write to |
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
18 * Boston, MA 02110-1301, USA. | 18 * Boston, MA 02110-1301, USA. |
19 */ | 19 */ |
20 | 20 |
21 #include "config.h" | 21 #include "config.h" |
22 #include "platform/graphics/filters/SourceAlpha.h" | 22 #include "platform/graphics/filters/SourceAlpha.h" |
23 | 23 |
24 #include "platform/graphics/Color.h" | |
25 #include "platform/graphics/filters/Filter.h" | 24 #include "platform/graphics/filters/Filter.h" |
26 #include "platform/graphics/filters/SkiaImageFilterBuilder.h" | 25 #include "platform/graphics/filters/SkiaImageFilterBuilder.h" |
27 #include "platform/graphics/filters/SourceGraphic.h" | |
28 #include "platform/text/TextStream.h" | 26 #include "platform/text/TextStream.h" |
29 #include "third_party/skia/include/effects/SkColorFilterImageFilter.h" | 27 #include "third_party/skia/include/effects/SkColorFilterImageFilter.h" |
30 #include "third_party/skia/include/effects/SkColorMatrixFilter.h" | 28 #include "third_party/skia/include/effects/SkColorMatrixFilter.h" |
31 #include "wtf/text/WTFString.h" | 29 #include "wtf/text/WTFString.h" |
32 | 30 |
33 namespace blink { | 31 namespace blink { |
34 | 32 |
35 PassRefPtrWillBeRawPtr<SourceAlpha> SourceAlpha::create(Filter* filter) | 33 PassRefPtrWillBeRawPtr<SourceAlpha> SourceAlpha::create(FilterEffect* sourceEffe
ct) |
36 { | 34 { |
37 return adoptRefWillBeNoop(new SourceAlpha(filter)); | 35 return adoptRefWillBeNoop(new SourceAlpha(sourceEffect)); |
38 } | 36 } |
39 | 37 |
40 const AtomicString& SourceAlpha::effectName() | 38 const AtomicString& SourceAlpha::effectName() |
41 { | 39 { |
42 DEFINE_STATIC_LOCAL(const AtomicString, s_effectName, ("SourceAlpha", Atomic
String::ConstructFromLiteral)); | 40 DEFINE_STATIC_LOCAL(const AtomicString, s_effectName, ("SourceAlpha", Atomic
String::ConstructFromLiteral)); |
43 return s_effectName; | 41 return s_effectName; |
44 } | 42 } |
45 | 43 |
| 44 SourceAlpha::SourceAlpha(FilterEffect* sourceEffect) |
| 45 : FilterEffect(sourceEffect->filter()) |
| 46 { |
| 47 setOperatingColorSpace(sourceEffect->operatingColorSpace()); |
| 48 inputEffects().append(sourceEffect); |
| 49 } |
| 50 |
46 FloatRect SourceAlpha::determineAbsolutePaintRect(const FloatRect& requestedRect
) | 51 FloatRect SourceAlpha::determineAbsolutePaintRect(const FloatRect& requestedRect
) |
47 { | 52 { |
48 FloatRect srcRect = filter()->sourceImageRect(); | 53 return inputEffect(0)->determineAbsolutePaintRect(requestedRect); |
49 srcRect.intersect(requestedRect); | |
50 addAbsolutePaintRect(srcRect); | |
51 return srcRect; | |
52 } | 54 } |
53 | 55 |
54 PassRefPtr<SkImageFilter> SourceAlpha::createImageFilter(SkiaImageFilterBuilder*
builder) | 56 PassRefPtr<SkImageFilter> SourceAlpha::createImageFilter(SkiaImageFilterBuilder*
builder) |
55 { | 57 { |
56 RefPtr<SkImageFilter> sourceGraphic(builder->build(builder->sourceGraphic(),
operatingColorSpace())); | 58 RefPtr<SkImageFilter> sourceGraphic(builder->build(inputEffect(0), operating
ColorSpace())); |
57 SkScalar matrix[20] = { | 59 SkScalar matrix[20] = { |
58 0, 0, 0, 0, 0, | 60 0, 0, 0, 0, 0, |
59 0, 0, 0, 0, 0, | 61 0, 0, 0, 0, 0, |
60 0, 0, 0, 0, 0, | 62 0, 0, 0, 0, 0, |
61 0, 0, 0, SK_Scalar1, 0 | 63 0, 0, 0, SK_Scalar1, 0 |
62 }; | 64 }; |
63 RefPtr<SkColorFilter> colorFilter(adoptRef(SkColorMatrixFilter::Create(matri
x))); | 65 RefPtr<SkColorFilter> colorFilter(adoptRef(SkColorMatrixFilter::Create(matri
x))); |
64 return adoptRef(SkColorFilterImageFilter::Create(colorFilter.get(), sourceGr
aphic.get())); | 66 return adoptRef(SkColorFilterImageFilter::Create(colorFilter.get(), sourceGr
aphic.get())); |
65 } | 67 } |
66 | 68 |
67 TextStream& SourceAlpha::externalRepresentation(TextStream& ts, int indent) cons
t | 69 TextStream& SourceAlpha::externalRepresentation(TextStream& ts, int indent) cons
t |
68 { | 70 { |
69 writeIndent(ts, indent); | 71 writeIndent(ts, indent); |
70 ts << "[SourceAlpha]\n"; | 72 ts << "[SourceAlpha]\n"; |
71 return ts; | 73 return ts; |
72 } | 74 } |
73 | 75 |
74 } // namespace blink | 76 } // namespace blink |
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