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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 DOMArrayBufferView_h | 5 #ifndef DOMArrayBufferView_h |
6 #define DOMArrayBufferView_h | 6 #define DOMArrayBufferView_h |
7 | 7 |
8 #include "bindings/core/v8/ScriptWrappable.h" | 8 #include "bindings/core/v8/ScriptWrappable.h" |
9 #include "core/CoreExport.h" | 9 #include "core/CoreExport.h" |
10 #include "core/dom/DOMArrayBuffer.h" | 10 #include "core/dom/DOMArrayBuffer.h" |
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24 static const ViewType TypeInt16 = WTF::ArrayBufferView::TypeInt16; | 24 static const ViewType TypeInt16 = WTF::ArrayBufferView::TypeInt16; |
25 static const ViewType TypeUint16 = WTF::ArrayBufferView::TypeUint16; | 25 static const ViewType TypeUint16 = WTF::ArrayBufferView::TypeUint16; |
26 static const ViewType TypeInt32 = WTF::ArrayBufferView::TypeInt32; | 26 static const ViewType TypeInt32 = WTF::ArrayBufferView::TypeInt32; |
27 static const ViewType TypeUint32 = WTF::ArrayBufferView::TypeUint32; | 27 static const ViewType TypeUint32 = WTF::ArrayBufferView::TypeUint32; |
28 static const ViewType TypeFloat32 = WTF::ArrayBufferView::TypeFloat32; | 28 static const ViewType TypeFloat32 = WTF::ArrayBufferView::TypeFloat32; |
29 static const ViewType TypeFloat64 = WTF::ArrayBufferView::TypeFloat64; | 29 static const ViewType TypeFloat64 = WTF::ArrayBufferView::TypeFloat64; |
30 static const ViewType TypeDataView = WTF::ArrayBufferView::TypeDataView; | 30 static const ViewType TypeDataView = WTF::ArrayBufferView::TypeDataView; |
31 | 31 |
32 virtual ~DOMArrayBufferView() { } | 32 virtual ~DOMArrayBufferView() { } |
33 | 33 |
34 PassRefPtr<DOMArrayBuffer> buffer() const | 34 PassRefPtr<DOMArrayBuffer> bufferOrNull() const |
35 { | 35 { |
36 ASSERT(!isShared()); | 36 ASSERT(!isShared()); |
37 if (!m_domArrayBuffer) { | 37 if (!m_domArrayBuffer) { |
38 m_domArrayBuffer = DOMArrayBuffer::create(view()->buffer()); | 38 m_domArrayBuffer = DOMArrayBuffer::createOrNull(view()->buffer()); |
39 } | 39 } |
40 return static_pointer_cast<DOMArrayBuffer>(m_domArrayBuffer); | 40 return static_pointer_cast<DOMArrayBuffer>(m_domArrayBuffer); |
41 } | 41 } |
42 | 42 |
43 PassRefPtr<DOMSharedArrayBuffer> bufferShared() const | 43 PassRefPtr<DOMSharedArrayBuffer> bufferSharedOrNull() const |
44 { | 44 { |
45 ASSERT(isShared()); | 45 ASSERT(isShared()); |
46 if (!m_domArrayBuffer) { | 46 if (!m_domArrayBuffer) { |
47 m_domArrayBuffer = DOMSharedArrayBuffer::create(view()->buffer()); | 47 m_domArrayBuffer = DOMSharedArrayBuffer::createOrNull(view()->buffer
()); |
48 } | 48 } |
49 return static_pointer_cast<DOMSharedArrayBuffer>(m_domArrayBuffer); | 49 return static_pointer_cast<DOMSharedArrayBuffer>(m_domArrayBuffer); |
50 } | 50 } |
51 | 51 |
52 PassRefPtr<DOMArrayBufferBase> bufferBase() const | 52 PassRefPtr<DOMArrayBufferBase> bufferBaseOrNull() const |
53 { | 53 { |
54 if (isShared()) { | 54 if (isShared()) { |
55 return bufferShared(); | 55 return bufferSharedOrNull(); |
56 } | 56 } |
57 return buffer(); | 57 return bufferOrNull(); |
58 } | 58 } |
59 | 59 |
60 const WTF::ArrayBufferView* view() const { return m_bufferView.get(); } | 60 const WTF::ArrayBufferView* view() const { return m_bufferView.get(); } |
61 WTF::ArrayBufferView* view() { return m_bufferView.get(); } | 61 WTF::ArrayBufferView* view() { return m_bufferView.get(); } |
62 | 62 |
63 ViewType type() const { return view()->type(); } | 63 ViewType type() const { return view()->type(); } |
64 const char* typeName() { return view()->typeName(); } | 64 const char* typeName() { return view()->typeName(); } |
65 void* baseAddress() const { return view()->baseAddress(); } | 65 void* baseAddress() const { return view()->baseAddress(); } |
66 unsigned byteOffset() const { return view()->byteOffset(); } | 66 unsigned byteOffset() const { return view()->byteOffset(); } |
67 unsigned byteLength() const { return view()->byteLength(); } | 67 unsigned byteLength() const { return view()->byteLength(); } |
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89 } | 89 } |
90 | 90 |
91 private: | 91 private: |
92 RefPtr<WTF::ArrayBufferView> m_bufferView; | 92 RefPtr<WTF::ArrayBufferView> m_bufferView; |
93 mutable RefPtr<DOMArrayBufferBase> m_domArrayBuffer; | 93 mutable RefPtr<DOMArrayBufferBase> m_domArrayBuffer; |
94 }; | 94 }; |
95 | 95 |
96 } // namespace blink | 96 } // namespace blink |
97 | 97 |
98 #endif // DOMArrayBufferView_h | 98 #endif // DOMArrayBufferView_h |
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