Uint32Array.h 3.8 KB

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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. #ifndef Uint32Array_h
  27. #define Uint32Array_h
  28. #include <wtf/IntegralTypedArrayBase.h>
  29. namespace WTF {
  30. class ArrayBuffer;
  31. class Uint32Array : public IntegralTypedArrayBase<unsigned int> {
  32. public:
  33. static inline PassRefPtr<Uint32Array> create(unsigned length);
  34. static inline PassRefPtr<Uint32Array> create(const unsigned int* array, unsigned length);
  35. static inline PassRefPtr<Uint32Array> create(PassRefPtr<ArrayBuffer>, unsigned byteOffset, unsigned length);
  36. // Should only be used when it is known the entire array will be filled. Do
  37. // not return these results directly to JavaScript without filling first.
  38. static inline PassRefPtr<Uint32Array> createUninitialized(unsigned length);
  39. using TypedArrayBase<unsigned>::set;
  40. using IntegralTypedArrayBase<unsigned>::set;
  41. inline PassRefPtr<Uint32Array> subarray(int start) const;
  42. inline PassRefPtr<Uint32Array> subarray(int start, int end) const;
  43. virtual ViewType getType() const
  44. {
  45. return TypeUint32;
  46. }
  47. private:
  48. inline Uint32Array(PassRefPtr<ArrayBuffer>,
  49. unsigned byteOffset,
  50. unsigned length);
  51. // Make constructor visible to superclass.
  52. friend class TypedArrayBase<unsigned int>;
  53. };
  54. PassRefPtr<Uint32Array> Uint32Array::create(unsigned length)
  55. {
  56. return TypedArrayBase<unsigned int>::create<Uint32Array>(length);
  57. }
  58. PassRefPtr<Uint32Array> Uint32Array::create(const unsigned int* array, unsigned length)
  59. {
  60. return TypedArrayBase<unsigned int>::create<Uint32Array>(array, length);
  61. }
  62. PassRefPtr<Uint32Array> Uint32Array::create(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length)
  63. {
  64. return TypedArrayBase<unsigned int>::create<Uint32Array>(buffer, byteOffset, length);
  65. }
  66. PassRefPtr<Uint32Array> Uint32Array::createUninitialized(unsigned length)
  67. {
  68. return TypedArrayBase<unsigned int>::createUninitialized<Uint32Array>(length);
  69. }
  70. Uint32Array::Uint32Array(PassRefPtr<ArrayBuffer> buffer, unsigned byteOffset, unsigned length)
  71. : IntegralTypedArrayBase<unsigned int>(buffer, byteOffset, length)
  72. {
  73. }
  74. PassRefPtr<Uint32Array> Uint32Array::subarray(int start) const
  75. {
  76. return subarray(start, length());
  77. }
  78. PassRefPtr<Uint32Array> Uint32Array::subarray(int start, int end) const
  79. {
  80. return subarrayImpl<Uint32Array>(start, end);
  81. }
  82. } // namespace WTF
  83. using WTF::Uint32Array;
  84. #endif // Uint32Array_h