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| 1 /* | |
| 2 * Copyright (C) 2009 Apple Inc. All rights reserved. | |
| 3 * Copyright (C) 2009 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 Float32Array_h | |
| 28 #define Float32Array_h | |
| 29 | |
| 30 #include <wtf/TypedArrayBase.h> | |
| 31 #include <wtf/MathExtras.h> | |
| 32 | |
| 33 namespace WTF { | |
| 34 | |
| 35 class Float32Array : public TypedArrayBase<float> { | |
| 36 public: | |
| 37 static inline PassRefPtr<Float32Array> create(unsigned length); | |
| 38 static inline PassRefPtr<Float32Array> create(const float* array, unsigned l
ength); | |
| 39 static inline PassRefPtr<Float32Array> create(PassRefPtr<ArrayBuffer>, unsig
ned 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<Float32Array> createUninitialized(unsigned length); | |
| 44 | |
| 45 using TypedArrayBase<float>::set; | |
| 46 | |
| 47 void set(unsigned index, double value) | |
| 48 { | |
| 49 if (index >= TypedArrayBase<float>::m_length) | |
| 50 return; | |
| 51 TypedArrayBase<float>::data()[index] = static_cast<float>(value); | |
| 52 } | |
| 53 | |
| 54 inline PassRefPtr<Float32Array> subarray(int start) const; | |
| 55 inline PassRefPtr<Float32Array> subarray(int start, int end) const; | |
| 56 | |
| 57 virtual ViewType getType() const | |
| 58 { | |
| 59 return TypeFloat32; | |
| 60 } | |
| 61 | |
| 62 private: | |
| 63 inline Float32Array(PassRefPtr<ArrayBuffer>, | |
| 64 unsigned byteOffset, | |
| 65 unsigned length); | |
| 66 // Make constructor visible to superclass. | |
| 67 friend class TypedArrayBase<float>; | |
| 68 }; | |
| 69 | |
| 70 PassRefPtr<Float32Array> Float32Array::create(unsigned length) | |
| 71 { | |
| 72 return TypedArrayBase<float>::create<Float32Array>(length); | |
| 73 } | |
| 74 | |
| 75 PassRefPtr<Float32Array> Float32Array::create(const float* array, unsigned lengt
h) | |
| 76 { | |
| 77 return TypedArrayBase<float>::create<Float32Array>(array, length); | |
| 78 } | |
| 79 | |
| 80 PassRefPtr<Float32Array> Float32Array::create(PassRefPtr<ArrayBuffer> buffer, un
signed byteOffset, unsigned length) | |
| 81 { | |
| 82 return TypedArrayBase<float>::create<Float32Array>(buffer, byteOffset, lengt
h); | |
| 83 } | |
| 84 | |
| 85 PassRefPtr<Float32Array> Float32Array::createUninitialized(unsigned length) | |
| 86 { | |
| 87 return TypedArrayBase<float>::createUninitialized<Float32Array>(length); | |
| 88 } | |
| 89 | |
| 90 Float32Array::Float32Array(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset,
unsigned length) | |
| 91 : TypedArrayBase<float>(buffer, byteOffset, length) | |
| 92 { | |
| 93 } | |
| 94 | |
| 95 PassRefPtr<Float32Array> Float32Array::subarray(int start) const | |
| 96 { | |
| 97 return subarray(start, length()); | |
| 98 } | |
| 99 | |
| 100 PassRefPtr<Float32Array> Float32Array::subarray(int start, int end) const | |
| 101 { | |
| 102 return subarrayImpl<Float32Array>(start, end); | |
| 103 } | |
| 104 | |
| 105 } // namespace WTF | |
| 106 | |
| 107 using WTF::Float32Array; | |
| 108 | |
| 109 #endif // Float32Array_h | |
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