00001 /******************************************************************************* 00002 00003 @file EndianReader.d 00004 00005 Copyright (c) 2004 Kris Bell 00006 00007 This software is provided 'as-is', without any express or implied 00008 warranty. In no event will the authors be held liable for damages 00009 of any kind arising from the use of this software. 00010 00011 Permission is hereby granted to anyone to use this software for any 00012 purpose, including commercial applications, and to alter it and/or 00013 redistribute it freely, subject to the following restrictions: 00014 00015 1. The origin of this software must not be misrepresented; you must 00016 not claim that you wrote the original software. If you use this 00017 software in a product, an acknowledgment within documentation of 00018 said product would be appreciated but is not required. 00019 00020 2. Altered source versions must be plainly marked as such, and must 00021 not be misrepresented as being the original software. 00022 00023 3. This notice may not be removed or altered from any distribution 00024 of the source. 00025 00026 4. Derivative works are permitted, but they must carry this notice 00027 in full and credit the original source. 00028 00029 00030 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 00031 00032 00033 @version Initial version, March 2004 00034 @author Kris 00035 00036 00037 *******************************************************************************/ 00038 00039 module mango.io.EndianReader; 00040 00041 public import mango.io.Reader; 00042 00043 private import mango.convert.Type; 00044 00045 private import mango.sys.ByteSwap; 00046 00047 /******************************************************************************* 00048 00049 *******************************************************************************/ 00050 00051 class EndianReader : Reader 00052 { 00053 /*********************************************************************** 00054 00055 Construct EndianWriter upon the given IBuffer 00056 00057 ***********************************************************************/ 00058 00059 this (IBuffer buffer) 00060 { 00061 super (buffer); 00062 } 00063 00064 /*********************************************************************** 00065 00066 ***********************************************************************/ 00067 00068 protected override uint read (void* dst, uint bytes, uint type) 00069 { 00070 super.read (dst, bytes, type); 00071 00072 switch (type) 00073 { 00074 case Type.Short: 00075 case Type.UShort: 00076 case Type.Utf16: 00077 ByteSwap.swap16 (dst, bytes); 00078 break; 00079 00080 case Type.Int: 00081 case Type.UInt: 00082 case Type.Float: 00083 case Type.Utf32: 00084 ByteSwap.swap32 (dst, bytes); 00085 break; 00086 00087 case Type.Long: 00088 case Type.ULong: 00089 case Type.Double: 00090 ByteSwap.swap64 (dst, bytes); 00091 break; 00092 00093 case Type.Real: 00094 ByteSwap.swap80 (dst, bytes); 00095 break; 00096 00097 default: 00098 break; 00099 } 00100 00101 return bytes; 00102 } 00103 }