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 Uint8Array_h 28 #define Uint8Array_h 29 30 #include "wtf/IntegralTypedArrayBase.h" 31 32 namespace WTF { 33 34 class ArrayBuffer; 35 36 class Uint8Array : public IntegralTypedArrayBase<unsigned char> { 37 public: 38 static inline PassRefPtr<Uint8Array> create(unsigned length); 39 static inline PassRefPtr<Uint8Array> create(const unsigned char* array, unsigned length); 40 static inline PassRefPtr<Uint8Array> create(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned length); 41 42 // Should only be used when it is known the entire array will be filled. Do 43 // not return these results directly to JavaScript without filling first. 44 static inline PassRefPtr<Uint8Array> createUninitialized(unsigned length); 45 46 using TypedArrayBase<unsigned char>::set; 47 using IntegralTypedArrayBase<unsigned char>::set; 48 49 inline PassRefPtr<Uint8Array> subarray(int start) const; 50 inline PassRefPtr<Uint8Array> subarray(int start, int end) const; 51 52 virtual ViewType type() const override 53 { 54 return TypeUint8; 55 } 56 57 protected: 58 inline Uint8Array(PassRefPtr<ArrayBuffer>, 59 unsigned byteOffset, 60 unsigned length); 61 // Make constructor visible to superclass. 62 friend class TypedArrayBase<unsigned char>; 63 }; 64 65 PassRefPtr<Uint8Array> Uint8Array::create(unsigned length) 66 { 67 return TypedArrayBase<unsigned char>::create<Uint8Array>(length); 68 } 69 70 PassRefPtr<Uint8Array> Uint8Array::create(const unsigned char* array, unsigned length) 71 { 72 return TypedArrayBase<unsigned char>::create<Uint8Array>(array, length); 73 } 74 75 PassRefPtr<Uint8Array> Uint8Array::create(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length) 76 { 77 return TypedArrayBase<unsigned char>::create<Uint8Array>(buffer, byteOffset, length); 78 } 79 80 PassRefPtr<Uint8Array> Uint8Array::createUninitialized(unsigned length) 81 { 82 return TypedArrayBase<unsigned char>::createUninitialized<Uint8Array>(length); 83 } 84 85 Uint8Array::Uint8Array(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length) 86 : IntegralTypedArrayBase<unsigned char>(buffer, byteOffset, length) 87 { 88 } 89 90 PassRefPtr<Uint8Array> Uint8Array::subarray(int start) const 91 { 92 return subarray(start, length()); 93 } 94 95 PassRefPtr<Uint8Array> Uint8Array::subarray(int start, int end) const 96 { 97 return subarrayImpl<Uint8Array>(start, end); 98 } 99 100 } // namespace WTF 101 102 using WTF::Uint8Array; 103 104 #endif // Uint8Array_h 105
