1/* 2 * Copyright (C) 2011 Apple Inc. All rights reserved. 3 * Copyright (C) 2011 Google Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#ifndef Float64Array_h 28#define Float64Array_h 29 30#include "wtf/TypedArrayBase.h" 31#include "wtf/MathExtras.h" 32 33namespace WTF { 34 35class Float64Array final : public TypedArrayBase<double> { 36public: 37 static inline PassRefPtr<Float64Array> create(unsigned length); 38 static inline PassRefPtr<Float64Array> create(const double* array, unsigned length); 39 static inline PassRefPtr<Float64Array> create(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned length); 40 41 // Should only be used when it is known the entire array will be filled. Do 42 // not return these results directly to JavaScript without filling first. 43 static inline PassRefPtr<Float64Array> createUninitialized(unsigned length); 44 45 using TypedArrayBase<double>::set; 46 47 void set(unsigned index, double value) 48 { 49 if (index >= TypedArrayBase<double>::m_length) 50 return; 51 TypedArrayBase<double>::data()[index] = static_cast<double>(value); 52 } 53 54 inline PassRefPtr<Float64Array> subarray(int start) const; 55 inline PassRefPtr<Float64Array> subarray(int start, int end) const; 56 57 virtual ViewType type() const override 58 { 59 return TypeFloat64; 60 } 61 62private: 63 inline Float64Array(PassRefPtr<ArrayBuffer>, 64 unsigned byteOffset, 65 unsigned length); 66 // Make constructor visible to superclass. 67 friend class TypedArrayBase<double>; 68}; 69 70PassRefPtr<Float64Array> Float64Array::create(unsigned length) 71{ 72 return TypedArrayBase<double>::create<Float64Array>(length); 73} 74 75PassRefPtr<Float64Array> Float64Array::create(const double* array, unsigned length) 76{ 77 return TypedArrayBase<double>::create<Float64Array>(array, length); 78} 79 80PassRefPtr<Float64Array> Float64Array::create(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length) 81{ 82 return TypedArrayBase<double>::create<Float64Array>(buffer, byteOffset, length); 83} 84 85PassRefPtr<Float64Array> Float64Array::createUninitialized(unsigned length) 86{ 87 return TypedArrayBase<double>::createUninitialized<Float64Array>(length); 88} 89 90Float64Array::Float64Array(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length) 91 : TypedArrayBase<double>(buffer, byteOffset, length) 92{ 93} 94 95PassRefPtr<Float64Array> Float64Array::subarray(int start) const 96{ 97 return subarray(start, length()); 98} 99 100PassRefPtr<Float64Array> Float64Array::subarray(int start, int end) const 101{ 102 return subarrayImpl<Float64Array>(start, end); 103} 104 105} // namespace WTF 106 107using WTF::Float64Array; 108 109#endif // Float64Array_h 110