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