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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 OffscreenCanvas_h | 5 #ifndef OffscreenCanvas_h |
6 #define OffscreenCanvas_h | 6 #define OffscreenCanvas_h |
7 | 7 |
8 #include "bindings/core/v8/ScriptPromise.h" | 8 #include "bindings/core/v8/ScriptPromise.h" |
9 #include "bindings/core/v8/ScriptState.h" | 9 #include "bindings/core/v8/ScriptState.h" |
10 #include "bindings/core/v8/ScriptWrappable.h" | 10 #include "bindings/core/v8/ScriptWrappable.h" |
11 #include "core/html/HTMLCanvasElement.h" | 11 #include "core/html/HTMLCanvasElement.h" |
12 #include "core/html/canvas/CanvasImageSource.h" | 12 #include "core/html/canvas/CanvasImageSource.h" |
13 #include "platform/geometry/IntSize.h" | 13 #include "platform/geometry/IntSize.h" |
| 14 #include "platform/graphics/OffscreenCanvasFrameDispatcher.h" |
14 #include "platform/heap/Handle.h" | 15 #include "platform/heap/Handle.h" |
15 #include <memory> | 16 #include <memory> |
16 | 17 |
17 namespace blink { | 18 namespace blink { |
18 | 19 |
19 class CanvasContextCreationAttributes; | 20 class CanvasContextCreationAttributes; |
20 class ImageBitmap; | 21 class ImageBitmap; |
21 class OffscreenCanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2RenderingC
ontext; | 22 class OffscreenCanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2RenderingC
ontext; |
22 typedef OffscreenCanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2Renderin
gContext OffscreenRenderingContext; | 23 typedef OffscreenCanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2Renderin
gContext OffscreenRenderingContext; |
23 | 24 |
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43 CanvasRenderingContext* getCanvasRenderingContext(ScriptState*, const String
&, const CanvasContextCreationAttributes&); | 44 CanvasRenderingContext* getCanvasRenderingContext(ScriptState*, const String
&, const CanvasContextCreationAttributes&); |
44 CanvasRenderingContext* renderingContext() { return m_context; } | 45 CanvasRenderingContext* renderingContext() { return m_context; } |
45 | 46 |
46 static void registerRenderingContextFactory(std::unique_ptr<CanvasRenderingC
ontextFactory>); | 47 static void registerRenderingContextFactory(std::unique_ptr<CanvasRenderingC
ontextFactory>); |
47 | 48 |
48 bool originClean() const; | 49 bool originClean() const; |
49 void setOriginTainted() { m_originClean = false; } | 50 void setOriginTainted() { m_originClean = false; } |
50 // TODO(crbug.com/630356): apply the flag to WebGL context as well | 51 // TODO(crbug.com/630356): apply the flag to WebGL context as well |
51 void setDisableReadingFromCanvasTrue() { m_disableReadingFromCanvas = true;
} | 52 void setDisableReadingFromCanvasTrue() { m_disableReadingFromCanvas = true;
} |
52 | 53 |
| 54 OffscreenCanvasFrameDispatcher* getOrCreateFrameDispatcher(); |
| 55 |
53 void setSurfaceId(uint32_t clientId, uint32_t localId, uint64_t nonce) | 56 void setSurfaceId(uint32_t clientId, uint32_t localId, uint64_t nonce) |
54 { | 57 { |
55 m_clientId = clientId; | 58 m_clientId = clientId; |
56 m_localId = localId; | 59 m_localId = localId; |
57 m_nonce = nonce; | 60 m_nonce = nonce; |
58 } | 61 } |
59 uint32_t clientId() const { return m_clientId; } | 62 uint32_t clientId() const { return m_clientId; } |
60 uint32_t localId() const { return m_localId; } | 63 uint32_t localId() const { return m_localId; } |
61 uint64_t nonce() const { return m_nonce; } | 64 uint64_t nonce() const { return m_nonce; } |
62 | 65 |
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81 Member<CanvasRenderingContext> m_context; | 84 Member<CanvasRenderingContext> m_context; |
82 int m_canvasId = -1; // DOMNodeIds starts from 0, using -1 to indicate no as
sociated canvas element. | 85 int m_canvasId = -1; // DOMNodeIds starts from 0, using -1 to indicate no as
sociated canvas element. |
83 IntSize m_size; | 86 IntSize m_size; |
84 bool m_isNeutered = false; | 87 bool m_isNeutered = false; |
85 | 88 |
86 bool m_originClean; | 89 bool m_originClean; |
87 bool m_disableReadingFromCanvas = false; | 90 bool m_disableReadingFromCanvas = false; |
88 | 91 |
89 bool isPaintable() const; | 92 bool isPaintable() const; |
90 | 93 |
| 94 std::unique_ptr<OffscreenCanvasFrameDispatcher> m_frameDispatcher; |
91 // cc::SurfaceId is broken into three integer components as this can be used | 95 // cc::SurfaceId is broken into three integer components as this can be used |
92 // in transfer of OffscreenCanvas across threads | 96 // in transfer of OffscreenCanvas across threads |
93 // If this object is not created via HTMLCanvasElement.transferControlToOffs
creen(), | 97 // If this object is not created via HTMLCanvasElement.transferControlToOffs
creen(), |
94 // then the following members would remain as initialized zero values. | 98 // then the following members would remain as initialized zero values. |
95 uint32_t m_clientId = 0; | 99 uint32_t m_clientId = 0; |
96 uint32_t m_localId = 0; | 100 uint32_t m_localId = 0; |
97 uint64_t m_nonce = 0; | 101 uint64_t m_nonce = 0; |
98 }; | 102 }; |
99 | 103 |
100 } // namespace blink | 104 } // namespace blink |
101 | 105 |
102 #endif // OffscreenCanvas_h | 106 #endif // OffscreenCanvas_h |
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