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295f920116
I wrote a script to do this which is attached to the bug. TBR=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/736373003
126 lines
4.6 KiB
C++
126 lines
4.6 KiB
C++
/*
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* Copyright (C) 2009 Apple Inc. All rights reserved.
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* Copyright (C) 2009 Google Inc. All rights reserved.
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* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_WTF_UINT8CLAMPEDARRAY_H_
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#define SKY_ENGINE_WTF_UINT8CLAMPEDARRAY_H_
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#include "sky/engine/wtf/MathExtras.h"
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#include "sky/engine/wtf/Uint8Array.h"
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namespace WTF {
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class Uint8ClampedArray final : public Uint8Array {
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public:
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static inline PassRefPtr<Uint8ClampedArray> create(unsigned length);
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static inline PassRefPtr<Uint8ClampedArray> create(const unsigned char* array, unsigned length);
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static inline PassRefPtr<Uint8ClampedArray> create(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned length);
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// Should only be used when it is known the entire array will be filled. Do
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// not return these results directly to JavaScript without filling first.
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static inline PassRefPtr<Uint8ClampedArray> createUninitialized(unsigned length);
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// It's only needed to potentially call this method if the array
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// was created uninitialized -- the default initialization paths
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// zero the allocated memory.
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inline void zeroFill();
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using TypedArrayBase<unsigned char>::set;
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inline void set(unsigned index, double value);
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inline PassRefPtr<Uint8ClampedArray> subarray(int start) const;
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inline PassRefPtr<Uint8ClampedArray> subarray(int start, int end) const;
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virtual ViewType type() const override
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{
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return TypeUint8Clamped;
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}
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private:
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inline Uint8ClampedArray(PassRefPtr<ArrayBuffer>,
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unsigned byteOffset,
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unsigned length);
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// Make constructor visible to superclass.
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friend class TypedArrayBase<unsigned char>;
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};
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PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::create(unsigned length)
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{
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return TypedArrayBase<unsigned char>::create<Uint8ClampedArray>(length);
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}
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PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::create(const unsigned char* array, unsigned length)
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{
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return TypedArrayBase<unsigned char>::create<Uint8ClampedArray>(array, length);
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}
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PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::create(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length)
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{
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return TypedArrayBase<unsigned char>::create<Uint8ClampedArray>(buffer, byteOffset, length);
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}
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PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::createUninitialized(unsigned length)
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{
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return TypedArrayBase<unsigned char>::createUninitialized<Uint8ClampedArray>(length);
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}
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void Uint8ClampedArray::zeroFill()
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{
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zeroRange(0, length());
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}
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void Uint8ClampedArray::set(unsigned index, double value)
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{
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if (index >= m_length)
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return;
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if (std::isnan(value) || value < 0)
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value = 0;
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else if (value > 255)
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value = 255;
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data()[index] = static_cast<unsigned char>(lrint(value));
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}
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Uint8ClampedArray::Uint8ClampedArray(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length)
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: Uint8Array(buffer, byteOffset, length)
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{
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}
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PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::subarray(int start) const
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{
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return subarray(start, length());
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}
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PassRefPtr<Uint8ClampedArray> Uint8ClampedArray::subarray(int start, int end) const
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{
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return subarrayImpl<Uint8ClampedArray>(start, end);
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}
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} // namespace WTF
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using WTF::Uint8ClampedArray;
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#endif // SKY_ENGINE_WTF_UINT8CLAMPEDARRAY_H_
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