110401(DTXMania089)/SlimDXc_Jun2010(VC++2008)/source/multimedia/WaveStream.h

   1 /*\r
   2 * Copyright (c) 2007-2010 SlimDX Group\r
   3 * \r
   4 * Permission is hereby granted, free of charge, to any person obtaining a copy\r
   5 * of this software and associated documentation files (the "Software"), to deal\r
   6 * in the Software without restriction, including without limitation the rights\r
   7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\r
   8 * copies of the Software, and to permit persons to whom the Software is\r
   9 * furnished to do so, subject to the following conditions:\r
  10 * \r
  11 * The above copyright notice and this permission notice shall be included in\r
  12 * all copies or substantial portions of the Software.\r
  13 * \r
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\r
  17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\r
  18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\r
  19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\r
  20 * THE SOFTWARE.\r
  21 */\r
  22 #pragma once\r
  23 \r
  24 #include "WaveFormat.h"\r
  25 #include "WaveFormatExtensible.h"\r
  26 \r
  27 namespace SlimDX\r
  28 {\r
  29         namespace Multimedia\r
  30         {\r
  31                 public ref class WaveStream : System::IO::Stream\r
  32                 {\r
  33                 private:\r
  34                         HMMIO handle;\r
  35                         int dataOffset;\r
  36                         int size;\r
  37                         WaveFormat^ format;\r
  38                         DataStream^ internalMemory;\r
  39                         DataStream^ publicMemory;\r
  40 \r
  41                         void Destruct();\r
  42                         void Init();\r
  43                         void InitStream( System::IO::Stream^ stream, int length );\r
  44 \r
  45                 internal:\r
  46                         property DataStream^ InternalMemory\r
  47                         {\r
  48                                 DataStream^ get() { return publicMemory; }\r
  49                         }\r
  50 \r
  51                 public:\r
  52                         WaveStream( System::String^ path );\r
  53                         WaveStream( System::IO::Stream^ stream );\r
  54                         WaveStream( System::IO::Stream^ stream, int length );\r
  55                         ~WaveStream();\r
  56                         !WaveStream();\r
  57 \r
  58                         /// <summary>\r
  59                         /// Sets the position within the current stream.\r
  60                         /// </summary>\r
  61                         /// <exception cref="InvalidOperationException">Attempted to seek outside of the bounds of the stream.</exception>\r
  62                         virtual System::Int64 Seek( System::Int64 offset, System::IO::SeekOrigin origin ) override;\r
  63 \r
  64                         /// <summary>\r
  65                         /// Not supported.\r
  66                         /// </summary>\r
  67                         /// <exception cref="NotSupportedException">Always thrown.</exception>\r
  68                         virtual void Write( array<System::Byte>^ buffer, int offset, int count ) override;\r
  69 \r
  70                         /// <summary>\r
  71                         /// Reads a sequence of bytes from the current stream and advances the position\r
  72                         /// within the stream by the number of bytes read.\r
  73                         /// </summary>\r
  74                         /// <param name="buffer">An array of values to be read from the stream.</param>\r
  75                         /// <param name="offset">The zero-based byte offset in buffer at which to begin storing\r
  76                         /// the data read from the current stream.</param>\r
  77                         /// <param name="count">The maximum number of bytes to be read from the current stream.</param>\r
  78                         /// <returns>The number of bytes read from the stream.</returns>\r
  79                         /// <exception cref="NotSupportedException">This stream does not support reading.</exception>\r
  80                         /// <exception cref="ArgumentNullException"><paramref name="buffer" /> is a null reference.</exception>\r
  81                         /// <exception cref="ArgumentOutOfRangeException"><paramref name="offset" /> or <paramref name="count" /> is negative.</exception>\r
  82                         /// <exception cref="ArgumentException">The sum of <paramref name="offset" /> and <paramref name="count" /> is greater than the buffer length.</exception>\r
  83                         virtual int Read( array<System::Byte>^ buffer, int offset, int count ) override;\r
  84 \r
  85                         /// <summary>\r
  86                         /// Not supported.\r
  87                         /// </summary>\r
  88                         /// <exception cref="NotSupportedException">Always thrown.</exception>\r
  89                         virtual void Flush() override;\r
  90 \r
  91                         /// <summary>\r
  92                         /// Not supported.\r
  93                         /// </summary>\r
  94                         /// <param name="value">Always ignored.</param>\r
  95                         /// <exception cref="NotSupportedException">Always thrown.</exception>\r
  96                         virtual void SetLength( System::Int64 value ) override;\r
  97 \r
  98                         /// <summary>\r
  99                         /// Gets a value indicating whether the current stream supports reading.\r
 100                         /// </summary>\r
 101                         /// <value>Always <c>true</c>.</value>\r
 102                         property bool CanRead\r
 103                         {\r
 104                                 virtual bool get() override { return true; }\r
 105                         }\r
 106 \r
 107                         /// <summary>\r
 108                         /// Gets a value indicating whether the current stream supports seeking.\r
 109                         /// </summary>\r
 110                         /// <value>Always <c>true</c>.</value>\r
 111                         property bool CanSeek\r
 112                         {\r
 113                                 virtual bool get() override { return true; }\r
 114                         }\r
 115 \r
 116                         /// <summary>\r
 117                         /// Gets a value indicating whether the current stream supports writing.\r
 118                         /// </summary>\r
 119                         /// <value>Always <c>false</c>.</value>\r
 120                         property bool CanWrite\r
 121                         {\r
 122                                 virtual bool get() override { return false; }\r
 123                         }\r
 124 \r
 125                         /// <summary>\r
 126                         /// Gets the length in bytes of the stream.\r
 127                         /// </summary>\r
 128                         /// <value>A long value representing the length of the stream in bytes.</value>\r
 129                         property System::Int64 Length\r
 130                         {\r
 131                                 virtual System::Int64 get() override;\r
 132                         }\r
 133 \r
 134                         /// <summary>\r
 135                         /// Gets or sets the position within the current stream.\r
 136                         /// </summary>\r
 137                         /// <value>The current position within the stream.</value>\r
 138                         /// <seealso cref="Stream">Stream Class</seealso>\r
 139                         property System::Int64 Position\r
 140                         {\r
 141                                 virtual System::Int64 get() override;\r
 142                                 virtual void set( System::Int64 ) override;\r
 143                         }\r
 144 \r
 145                         property WaveFormat^ Format\r
 146                         {\r
 147                                 WaveFormat^ get() { return format; }\r
 148                         }\r
 149                 };\r
 150         }\r
 151 }