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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 #include "core/offscreencanvas/OffscreenCanvas.h" | 5 #include "core/offscreencanvas/OffscreenCanvas.h" |
6 | 6 |
7 #include "core/dom/ExceptionCode.h" | 7 #include "core/dom/ExceptionCode.h" |
8 #include "core/html/canvas/CanvasContextCreationAttributes.h" | 8 #include "core/html/canvas/CanvasContextCreationAttributes.h" |
9 #include "core/html/canvas/CanvasRenderingContext.h" | 9 #include "core/html/canvas/CanvasRenderingContext.h" |
10 #include "core/html/canvas/CanvasRenderingContextFactory.h" | 10 #include "core/html/canvas/CanvasRenderingContextFactory.h" |
11 #include "platform/graphics/ImageBuffer.h" | 11 #include "platform/graphics/ImageBuffer.h" |
12 #include "platform/graphics/OffscreenCanvasFrameDispatcherImpl.h" | |
12 #include "wtf/MathExtras.h" | 13 #include "wtf/MathExtras.h" |
13 #include <memory> | 14 #include <memory> |
14 | 15 |
15 namespace blink { | 16 namespace blink { |
16 | 17 |
17 OffscreenCanvas::OffscreenCanvas(const IntSize& size) | 18 OffscreenCanvas::OffscreenCanvas(const IntSize& size) |
18 : m_size(size) | 19 : m_size(size) |
19 , m_originClean(true) | 20 , m_originClean(true) |
20 { | 21 { |
21 } | 22 } |
22 | 23 |
23 OffscreenCanvas* OffscreenCanvas::create(unsigned width, unsigned height) | 24 OffscreenCanvas* OffscreenCanvas::create(unsigned width, unsigned height) |
24 { | 25 { |
25 return new OffscreenCanvas(IntSize(clampTo<int>(width), clampTo<int>(height) )); | 26 return new OffscreenCanvas(IntSize(clampTo<int>(width), clampTo<int>(height) )); |
26 } | 27 } |
27 | 28 |
28 void OffscreenCanvas::setWidth(unsigned width) | 29 void OffscreenCanvas::setWidth(unsigned width) |
29 { | 30 { |
30 m_size.setWidth(clampTo<int>(width)); | 31 m_size.setWidth(clampTo<int>(width)); |
danakj
2016/09/02 21:53:50
While I'm reading this code, can you explain why t
xlai (Olivia)
2016/09/02 23:41:28
You're right. I also feel that it's illogical to h
| |
31 } | 32 } |
32 | 33 |
33 void OffscreenCanvas::setHeight(unsigned height) | 34 void OffscreenCanvas::setHeight(unsigned height) |
34 { | 35 { |
35 m_size.setHeight(clampTo<int>(height)); | 36 m_size.setHeight(clampTo<int>(height)); |
36 } | 37 } |
37 | 38 |
38 void OffscreenCanvas::setNeutered() | 39 void OffscreenCanvas::setNeutered() |
39 { | 40 { |
40 ASSERT(!m_context); | 41 ASSERT(!m_context); |
(...skipping 86 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
127 return m_originClean && !m_disableReadingFromCanvas; | 128 return m_originClean && !m_disableReadingFromCanvas; |
128 } | 129 } |
129 | 130 |
130 bool OffscreenCanvas::isPaintable() const | 131 bool OffscreenCanvas::isPaintable() const |
131 { | 132 { |
132 if (!m_context) | 133 if (!m_context) |
133 return ImageBuffer::canCreateImageBuffer(m_size); | 134 return ImageBuffer::canCreateImageBuffer(m_size); |
134 return m_context->isPaintable(); | 135 return m_context->isPaintable(); |
135 } | 136 } |
136 | 137 |
138 OffscreenCanvasFrameDispatcher* OffscreenCanvas::getOrCreateFrameDispatcher() | |
139 { | |
140 if (!m_frameDispatcher) | |
141 m_frameDispatcher = wrapUnique(new OffscreenCanvasFrameDispatcherImpl(m_ clientId, m_localId, m_nonce, width(), height())); | |
142 return m_frameDispatcher.get(); | |
143 } | |
144 | |
137 DEFINE_TRACE(OffscreenCanvas) | 145 DEFINE_TRACE(OffscreenCanvas) |
138 { | 146 { |
139 visitor->trace(m_context); | 147 visitor->trace(m_context); |
140 } | 148 } |
141 | 149 |
142 } // namespace blink | 150 } // namespace blink |
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