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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "core/html/Float32ImageData.h" | |
| 6 | |
| 7 #include "bindings/core/v8/ExceptionState.h" | |
| 8 #include "bindings/core/v8/V8Float32Array.h" | |
| 9 #include "core/dom/ExceptionCode.h" | |
| 10 #include "core/frame/ImageBitmap.h" | |
| 11 #include "core/imagebitmap/ImageBitmapOptions.h" | |
| 12 #include "platform/RuntimeEnabledFeatures.h" | |
| 13 #include "wtf/CheckedNumeric.h" | |
| 14 | |
| 15 namespace blink { | |
| 16 | |
| 17 bool Float32ImageData::validateConstructorArguments( | |
| 18 const unsigned& paramFlags, | |
| 19 const IntSize* size, | |
| 20 const unsigned& width, | |
| 21 const unsigned& height, | |
| 22 const DOMFloat32Array* data, | |
| 23 const String* colorSpace, | |
| 24 ExceptionState* exceptionState) { | |
| 25 return ImageData::validateConstructorArguments( | |
| 26 paramFlags, size, width, height, data, colorSpace, exceptionState, | |
| 27 kFloat32ImageData); | |
| 28 } | |
| 29 | |
| 30 DOMFloat32Array* Float32ImageData::allocateAndValidateFloat32Array( | |
| 31 const unsigned& length, | |
| 32 ExceptionState* exceptionState) { | |
| 33 if (!length) | |
| 34 return nullptr; | |
| 35 DOMFloat32Array* dataArray = DOMFloat32Array::createOrNull(length); | |
| 36 if (!dataArray || length != dataArray->length()) { | |
| 37 if (exceptionState) { | |
| 38 exceptionState->throwDOMException( | |
| 39 V8RangeError, "Out of memory at Float32ImageData creation"); | |
| 40 } | |
| 41 return nullptr; | |
| 42 } | |
| 43 return dataArray; | |
| 44 } | |
| 45 | |
| 46 Float32ImageData* Float32ImageData::create(const IntSize& size) { | |
| 47 if (!Float32ImageData::validateConstructorArguments(kParamSize, &size)) | |
| 48 return nullptr; | |
| 49 DOMFloat32Array* dataArray = | |
| 50 Float32ImageData::allocateAndValidateFloat32Array(4 * size.width() * | |
| 51 size.height()); | |
| 52 return dataArray ? new Float32ImageData(size, dataArray) : nullptr; | |
| 53 } | |
| 54 | |
| 55 Float32ImageData* Float32ImageData::create(const IntSize& size, | |
| 56 DOMFloat32Array* dataArray) { | |
| 57 if (!Float32ImageData::validateConstructorArguments(kParamSize | kParamData, | |
| 58 &size, 0, 0, dataArray)) | |
| 59 return nullptr; | |
| 60 return new Float32ImageData(size, dataArray); | |
| 61 } | |
| 62 | |
| 63 Float32ImageData* Float32ImageData::create(unsigned width, | |
| 64 unsigned height, | |
| 65 ExceptionState& exceptionState) { | |
| 66 if (!Float32ImageData::validateConstructorArguments( | |
| 67 kParamWidth | kParamHeight, nullptr, width, height, nullptr, nullptr, | |
| 68 &exceptionState)) | |
| 69 return nullptr; | |
| 70 DOMFloat32Array* dataArray = | |
| 71 Float32ImageData::allocateAndValidateFloat32Array(4 * width * height, | |
| 72 &exceptionState); | |
| 73 return dataArray ? new Float32ImageData(IntSize(width, height), dataArray) | |
| 74 : nullptr; | |
| 75 } | |
| 76 | |
| 77 Float32ImageData* Float32ImageData::create(DOMFloat32Array* data, | |
| 78 unsigned width, | |
| 79 ExceptionState& exceptionState) { | |
| 80 if (!Float32ImageData::validateConstructorArguments(kParamData | kParamWidth, | |
| 81 nullptr, width, 0, data, | |
| 82 nullptr, &exceptionState)) | |
| 83 return nullptr; | |
| 84 unsigned height = data->length() / (width * 4); | |
| 85 return new Float32ImageData(IntSize(width, height), data); | |
| 86 } | |
| 87 | |
| 88 Float32ImageData* Float32ImageData::create(DOMFloat32Array* data, | |
| 89 unsigned width, | |
| 90 unsigned height, | |
| 91 ExceptionState& exceptionState) { | |
| 92 if (!Float32ImageData::validateConstructorArguments( | |
| 93 kParamData | kParamWidth | kParamHeight, nullptr, width, height, data, | |
| 94 nullptr, &exceptionState)) | |
| 95 return nullptr; | |
| 96 return new Float32ImageData(IntSize(width, height), data); | |
| 97 } | |
| 98 | |
| 99 Float32ImageData* Float32ImageData::create(unsigned width, | |
| 100 unsigned height, | |
| 101 String colorSpace, | |
| 102 ExceptionState& exceptionState) { | |
| 103 if (!Float32ImageData::validateConstructorArguments( | |
| 104 kParamWidth | kParamHeight | kParamColorSpace, nullptr, width, height, | |
| 105 nullptr, &colorSpace, &exceptionState)) | |
| 106 return nullptr; | |
| 107 | |
| 108 DOMFloat32Array* dataArray = | |
| 109 Float32ImageData::allocateAndValidateFloat32Array(4 * width * height, | |
| 110 &exceptionState); | |
| 111 return dataArray ? new Float32ImageData(IntSize(width, height), dataArray, | |
| 112 colorSpace) | |
| 113 : nullptr; | |
| 114 } | |
| 115 | |
| 116 Float32ImageData* Float32ImageData::create(DOMFloat32Array* data, | |
| 117 unsigned width, | |
| 118 String colorSpace, | |
| 119 ExceptionState& exceptionState) { | |
| 120 if (!Float32ImageData::validateConstructorArguments( | |
| 121 kParamData | kParamWidth | kParamColorSpace, nullptr, width, 0, data, | |
| 122 &colorSpace, &exceptionState)) | |
| 123 return nullptr; | |
| 124 unsigned height = data->length() / (width * 4); | |
| 125 return new Float32ImageData(IntSize(width, height), data, colorSpace); | |
| 126 } | |
| 127 | |
| 128 Float32ImageData* Float32ImageData::create(DOMFloat32Array* data, | |
| 129 unsigned width, | |
| 130 unsigned height, | |
| 131 String colorSpace, | |
| 132 ExceptionState& exceptionState) { | |
| 133 if (!Float32ImageData::validateConstructorArguments( | |
| 134 kParamData | kParamWidth | kParamHeight | kParamColorSpace, nullptr, | |
| 135 width, height, data, &colorSpace, &exceptionState)) | |
| 136 return nullptr; | |
| 137 return new Float32ImageData(IntSize(width, height), data, colorSpace); | |
| 138 } | |
| 139 | |
| 140 v8::Local<v8::Object> Float32ImageData::associateWithWrapper( | |
| 141 v8::Isolate* isolate, | |
| 142 const WrapperTypeInfo* wrapperType, | |
| 143 v8::Local<v8::Object> wrapper) { | |
| 144 wrapper = | |
| 145 ScriptWrappable::associateWithWrapper(isolate, wrapperType, wrapper); | |
| 146 | |
| 147 if (!wrapper.IsEmpty() && m_data.get()) { | |
| 148 // Create a V8 Float32Array object and set the "data" property | |
| 149 // of the Float32ImageData object to the created v8 object, eliminating the | |
| 150 // C++ callback when accessing the "data" property. | |
| 151 v8::Local<v8::Value> pixelArray = ToV8(m_data.get(), wrapper, isolate); | |
| 152 if (pixelArray.IsEmpty() || | |
| 153 !v8CallBoolean(wrapper->DefineOwnProperty( | |
| 154 isolate->GetCurrentContext(), v8AtomicString(isolate, "data"), | |
| 155 pixelArray, v8::ReadOnly))) | |
| 156 return v8::Local<v8::Object>(); | |
| 157 } | |
| 158 return wrapper; | |
| 159 } | |
| 160 | |
| 161 Float32ImageData::Float32ImageData(const IntSize& size, | |
| 162 DOMFloat32Array* dataArray, | |
| 163 String colorSpaceName) | |
| 164 : m_size(size), | |
| 165 m_colorSpace(ImageData::getImageDataColorSpace(colorSpaceName)), | |
| 166 m_data(dataArray) { | |
| 167 DCHECK_GE(size.width(), 0); | |
| 168 DCHECK_GE(size.height(), 0); | |
| 169 SECURITY_CHECK(static_cast<unsigned>(size.width() * size.height() * 4) <= | |
| 170 m_data->length()); | |
| 171 } | |
| 172 | |
| 173 } // namespace blink | |
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Chromium Code Reviews
Issue 2728373004:
Remove Float32ImageData and update ImageData for color management (Closed)
