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1 /* | 1 /* |
2 * Copyright (C) 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2008 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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118 if (!height) { | 118 if (!height) { |
119 height = length / width; | 119 height = length / width; |
120 } else if (height != length / width) { | 120 } else if (height != length / width) { |
121 exceptionState.throwDOMException(IndexSizeError, "The input data byte le
ngth is not equal to (4 * width * height)."); | 121 exceptionState.throwDOMException(IndexSizeError, "The input data byte le
ngth is not equal to (4 * width * height)."); |
122 return nullptr; | 122 return nullptr; |
123 } | 123 } |
124 | 124 |
125 return adoptRefWillBeNoop(new ImageData(IntSize(width, height), data)); | 125 return adoptRefWillBeNoop(new ImageData(IntSize(width, height), data)); |
126 } | 126 } |
127 | 127 |
128 v8::Handle<v8::Object> ImageData::associateWithWrapper(const WrapperTypeInfo* wr
apperType, v8::Handle<v8::Object> wrapper, v8::Isolate* isolate) | 128 v8::Handle<v8::Object> ImageData::associateWithWrapper(v8::Isolate* isolate, con
st WrapperTypeInfo* wrapperType, v8::Handle<v8::Object> wrapper) |
129 { | 129 { |
130 ScriptWrappable::associateWithWrapper(wrapperType, wrapper, isolate); | 130 ScriptWrappable::associateWithWrapper(isolate, wrapperType, wrapper); |
131 | 131 |
132 if (!wrapper.IsEmpty()) { | 132 if (!wrapper.IsEmpty()) { |
133 // Create a V8 Uint8ClampedArray object. | 133 // Create a V8 Uint8ClampedArray object. |
134 v8::Handle<v8::Value> pixelArray = toV8(m_data.get(), wrapper, isolate); | 134 v8::Handle<v8::Value> pixelArray = toV8(m_data.get(), wrapper, isolate); |
135 // Set the "data" property of the ImageData object to | 135 // Set the "data" property of the ImageData object to |
136 // the created v8 object, eliminating the C++ callback | 136 // the created v8 object, eliminating the C++ callback |
137 // when accessing the "data" property. | 137 // when accessing the "data" property. |
138 if (!pixelArray.IsEmpty()) | 138 if (!pixelArray.IsEmpty()) |
139 wrapper->ForceSet(v8AtomicString(isolate, "data"), pixelArray, v8::R
eadOnly); | 139 wrapper->ForceSet(v8AtomicString(isolate, "data"), pixelArray, v8::R
eadOnly); |
140 } | 140 } |
141 return wrapper; | 141 return wrapper; |
142 } | 142 } |
143 | 143 |
144 ImageData::ImageData(const IntSize& size) | 144 ImageData::ImageData(const IntSize& size) |
145 : m_size(size) | 145 : m_size(size) |
146 , m_data(DOMUint8ClampedArray::create(size.width() * size.height() * 4)) | 146 , m_data(DOMUint8ClampedArray::create(size.width() * size.height() * 4)) |
147 { | 147 { |
148 } | 148 } |
149 | 149 |
150 ImageData::ImageData(const IntSize& size, PassRefPtr<DOMUint8ClampedArray> byteA
rray) | 150 ImageData::ImageData(const IntSize& size, PassRefPtr<DOMUint8ClampedArray> byteA
rray) |
151 : m_size(size) | 151 : m_size(size) |
152 , m_data(byteArray) | 152 , m_data(byteArray) |
153 { | 153 { |
154 ASSERT_WITH_SECURITY_IMPLICATION(static_cast<unsigned>(size.width() * size.h
eight() * 4) <= m_data->length()); | 154 ASSERT_WITH_SECURITY_IMPLICATION(static_cast<unsigned>(size.width() * size.h
eight() * 4) <= m_data->length()); |
155 } | 155 } |
156 | 156 |
157 } // namespace blink | 157 } // namespace blink |
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