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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef PaintRenderingContext2D_h | 5 #ifndef PaintRenderingContext2D_h |
6 #define PaintRenderingContext2D_h | 6 #define PaintRenderingContext2D_h |
7 | 7 |
8 #include "bindings/core/v8/ScriptWrappable.h" | 8 #include "bindings/core/v8/ScriptWrappable.h" |
9 #include "modules/ModulesExport.h" | 9 #include "modules/ModulesExport.h" |
10 #include "modules/canvas2d/BaseRenderingContext2D.h" | 10 #include "modules/canvas2d/BaseRenderingContext2D.h" |
11 #include "platform/graphics/ImageBuffer.h" | 11 #include "platform/graphics/ImageBuffer.h" |
12 #include <memory> | 12 #include <memory> |
13 | 13 |
14 class SkCanvas; | 14 class SkCanvas; |
15 | 15 |
16 namespace blink { | 16 namespace blink { |
17 | 17 |
18 class CanvasImageSource; | 18 class CanvasImageSource; |
19 class Color; | 19 class Color; |
20 | 20 |
21 class MODULES_EXPORT PaintRenderingContext2D : public BaseRenderingContext2D, pu
blic GarbageCollectedFinalized<PaintRenderingContext2D>, public ScriptWrappable
{ | 21 class MODULES_EXPORT PaintRenderingContext2D : public BaseRenderingContext2D, pu
blic GarbageCollectedFinalized<PaintRenderingContext2D>, public ScriptWrappable
{ |
22 DEFINE_WRAPPERTYPEINFO(); | 22 DEFINE_WRAPPERTYPEINFO(); |
23 USING_GARBAGE_COLLECTED_MIXIN(PaintRenderingContext2D); | 23 USING_GARBAGE_COLLECTED_MIXIN(PaintRenderingContext2D); |
24 WTF_MAKE_NONCOPYABLE(PaintRenderingContext2D); | 24 WTF_MAKE_NONCOPYABLE(PaintRenderingContext2D); |
25 public: | 25 public: |
26 static PaintRenderingContext2D* create(std::unique_ptr<ImageBuffer> imageBuf
fer) | 26 static PaintRenderingContext2D* create(std::unique_ptr<ImageBuffer> imageBuf
fer, bool hasAlpha) |
27 { | 27 { |
28 return new PaintRenderingContext2D(std::move(imageBuffer)); | 28 return new PaintRenderingContext2D(std::move(imageBuffer), hasAlpha); |
29 } | 29 } |
30 | 30 |
31 // BaseRenderingContext2D | 31 // BaseRenderingContext2D |
32 | 32 |
33 // PaintRenderingContext2D doesn't have any pixel readback so the origin | 33 // PaintRenderingContext2D doesn't have any pixel readback so the origin |
34 // is always clean, and unable to taint it. | 34 // is always clean, and unable to taint it. |
35 bool originClean() const final { return true; } | 35 bool originClean() const final { return true; } |
36 void setOriginTainted() final { } | 36 void setOriginTainted() final { } |
37 bool wouldTaintOrigin(CanvasImageSource*, ExecutionContext*) final { return
false; } | 37 bool wouldTaintOrigin(CanvasImageSource*, ExecutionContext*) final { return
false; } |
38 | 38 |
(...skipping 16 matching lines...) Expand all Loading... |
55 // TODO(ikilpatrick): We'll need to either only accept resolved filters | 55 // TODO(ikilpatrick): We'll need to either only accept resolved filters |
56 // from a typed-om <filter> object, or use the appropriate style resolution | 56 // from a typed-om <filter> object, or use the appropriate style resolution |
57 // host to determine 'em' units etc in filters. At the moment just pretend | 57 // host to determine 'em' units etc in filters. At the moment just pretend |
58 // that we don't have a filter set. | 58 // that we don't have a filter set. |
59 bool stateHasFilter() final { return false; } | 59 bool stateHasFilter() final { return false; } |
60 SkImageFilter* stateGetFilter() final { return nullptr; } | 60 SkImageFilter* stateGetFilter() final { return nullptr; } |
61 void snapshotStateForFilter() final { } | 61 void snapshotStateForFilter() final { } |
62 | 62 |
63 void validateStateStack() final; | 63 void validateStateStack() final; |
64 | 64 |
65 bool hasAlpha() const final { return true; } | 65 bool hasAlpha() const final { return m_hasAlpha; } |
66 | 66 |
67 // PaintRenderingContext2D cannot lose it's context. | 67 // PaintRenderingContext2D cannot lose it's context. |
68 bool isContextLost() const final { return false; } | 68 bool isContextLost() const final { return false; } |
69 | 69 |
70 private: | 70 private: |
71 explicit PaintRenderingContext2D(std::unique_ptr<ImageBuffer>); | 71 PaintRenderingContext2D(std::unique_ptr<ImageBuffer>, bool hasAlpha); |
72 | 72 |
73 std::unique_ptr<ImageBuffer> m_imageBuffer; | 73 std::unique_ptr<ImageBuffer> m_imageBuffer; |
| 74 bool m_hasAlpha; |
74 }; | 75 }; |
75 | 76 |
76 } // namespace blink | 77 } // namespace blink |
77 | 78 |
78 #endif // PaintRenderingContext2D_h | 79 #endif // PaintRenderingContext2D_h |
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