third_party/WebKit/Source/wtf/Uint8Array.h

   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     using TypedArrayBase<unsigned char>::set;
  43     using IntegralTypedArrayBase<unsigned char>::set;
  44
  45     ViewType type() const override
  46     {
  47         return TypeUint8;
  48     }
  49
  50 protected:
  51     inline Uint8Array(PassRefPtr<ArrayBuffer>,
  52                            unsigned byteOffset,
  53                            unsigned length);
  54     // Make constructor visible to superclass.
  55     friend class TypedArrayBase<unsigned char>;
  56 };
  57
  58 PassRefPtr<Uint8Array> Uint8Array::create(unsigned length)
  59 {
  60     return TypedArrayBase<unsigned char>::create<Uint8Array>(length);
  61 }
  62
  63 PassRefPtr<Uint8Array> Uint8Array::create(const unsigned char* array, unsigned length)
  64 {
  65     return TypedArrayBase<unsigned char>::create<Uint8Array>(array, length);
  66 }
  67
  68 PassRefPtr<Uint8Array> Uint8Array::create(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length)
  69 {
  70     return TypedArrayBase<unsigned char>::create<Uint8Array>(buffer, byteOffset, length);
  71 }
  72
  73 Uint8Array::Uint8Array(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length)
  74 : IntegralTypedArrayBase<unsigned char>(buffer, byteOffset, length)
  75 {
  76 }
  77
  78 } // namespace WTF
  79
  80 using WTF::Uint8Array;
  81
  82 #endif // Uint8Array_h