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<h1>src/io_decorators.cpp</h1><a href="io__decorators_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// $Id: io_decorators.cpp,v 1.4 2002/07/02 22:13:40 t1mpy Exp $</span>
<a name="l00002"></a>00002
<a name="l00003"></a>00003 <span class="comment">// id3lib: a C++ library for creating and manipulating id3v1/v2 tags</span>
<a name="l00004"></a>00004 <span class="comment">// Copyright 1999, 2000 Scott Thomas Haug</span>
<a name="l00005"></a>00005
<a name="l00006"></a>00006 <span class="comment">// This library is free software; you can redistribute it and/or modify it</span>
<a name="l00007"></a>00007 <span class="comment">// under the terms of the GNU Library General Public License as published by</span>
<a name="l00008"></a>00008 <span class="comment">// the Free Software Foundation; either version 2 of the License, or (at your</span>
<a name="l00009"></a>00009 <span class="comment">// option) any later version.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// This library is distributed in the hope that it will be useful, but WITHOUT</span>
<a name="l00012"></a>00012 <span class="comment">// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or</span>
<a name="l00013"></a>00013 <span class="comment">// FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public</span>
<a name="l00014"></a>00014 <span class="comment">// License for more details.</span>
<a name="l00015"></a>00015 <span class="comment">//</span>
<a name="l00016"></a>00016 <span class="comment">// You should have received a copy of the GNU Library General Public License</span>
<a name="l00017"></a>00017 <span class="comment">// along with this library; if not, write to the Free Software Foundation,</span>
<a name="l00018"></a>00018 <span class="comment">// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="comment">// The id3lib authors encourage improvements and optimisations to be sent to</span>
<a name="l00021"></a>00021 <span class="comment">// the id3lib coordinator. Please see the README file for details on where to</span>
<a name="l00022"></a>00022 <span class="comment">// send such submissions. See the AUTHORS file for a list of people who have</span>
<a name="l00023"></a>00023 <span class="comment">// contributed to id3lib. See the ChangeLog file for a list of changes to</span>
<a name="l00024"></a>00024 <span class="comment">// id3lib. These files are distributed with id3lib at</span>
<a name="l00025"></a>00025 <span class="comment">// http://download.sourceforge.net/id3lib/</span>
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="preprocessor">#if defined HAVE_CONFIG_H</span>
<a name="l00028"></a>00028 <span class="preprocessor"></span><span class="preprocessor">#include <config.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#endif</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span>
<a name="l00031"></a>00031
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="preprocessor">#include "<a class="code" href="io__decorators_8h.html">id3/io_decorators.h</a>"</span> <span class="comment">//has "readers.h" "io_helpers.h" "utils.h"</span>
<a name="l00034"></a>00034 <span class="preprocessor">#include "zlib.h"</span>
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keyword">using namespace </span>dami;
<a name="l00037"></a>00037
<a name="l00038"></a><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a57b425068a3ef9c0b94339e497f9c448">00038</a> <span class="keywordtype">void</span> io::WindowedReader::setWindow(pos_type beg, size_type size)
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 ID3D_NOTICE( <span class="stringliteral">"WindowedReader::setWindow() [beg, size] = ["</span> <<
<a name="l00041"></a>00041 this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a5ce82f2e98fff8d3b824e1fdd1e20dae" title="Return the beginning position in the reader.">getBeg</a>() << <span class="stringliteral">", "</span> << size << <span class="stringliteral">"]"</span> );
<a name="l00042"></a>00042 <a class="code" href="class_i_d3___reader.html#a83194ea4d4e04e81302b095e9aa2275a">pos_type</a> cur = this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a033246ebae34ce4f17cd3f0cab5a02ac" title="Return the current position in the reader.">getCur</a>();
<a name="l00043"></a>00043
<a name="l00044"></a>00044 <span class="comment">// reset the end marker so as to avoid errors</span>
<a name="l00045"></a>00045 this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#af4d73fed0c9ae1f35b7b6a079fdd694d">setEnd</a>(_reader.<a class="code" href="class_i_d3___reader.html#a5872b6813a652d831b770bfb7d65aec8" title="Return the ending position in the reader.">getEnd</a>());
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="comment">// set the beginning marker</span>
<a name="l00048"></a>00048 this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#aa7a9567e54804ef5a06e28bc5145672b">setBeg</a>(beg);
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="comment">// since the characters might be more than a byte in size, we need to </span>
<a name="l00051"></a>00051 <span class="comment">// manually get all the chars to set the window appropriately</span>
<a name="l00052"></a>00052 this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a6c0e268b8b66da89812d7d2f211c1d57" title="Set the value of the current position for reading.">setCur</a>(beg);
<a name="l00053"></a>00053 ID3D_NOTICE( <span class="stringliteral">"WindowedReader::setWindow(): after setCur(beg), cur = "</span><<
<a name="l00054"></a>00054 this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a033246ebae34ce4f17cd3f0cab5a02ac" title="Return the current position in the reader.">getCur</a>() );
<a name="l00055"></a>00055
<a name="l00056"></a>00056 this-><a class="code" href="class_i_d3___reader.html#a12a8002132842435bae3d917bf6985e8" title="Skip up to len chars in the stream and advance the internal position accordingly...">skipChars</a>(size);
<a name="l00057"></a>00057 ID3D_NOTICE( <span class="stringliteral">"WindowedReader::setWindow(): after skipChars, cur = "</span> <<
<a name="l00058"></a>00058 this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a033246ebae34ce4f17cd3f0cab5a02ac" title="Return the current position in the reader.">getCur</a>() );
<a name="l00059"></a>00059
<a name="l00060"></a>00060 this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#af4d73fed0c9ae1f35b7b6a079fdd694d">setEnd</a>(this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a033246ebae34ce4f17cd3f0cab5a02ac" title="Return the current position in the reader.">getCur</a>());
<a name="l00061"></a>00061
<a name="l00062"></a>00062 ID3D_NOTICE( <span class="stringliteral">"WindowedReader::setWindow() [beg, cur, end] = ["</span> << this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a5ce82f2e98fff8d3b824e1fdd1e20dae" title="Return the beginning position in the reader.">getBeg</a>() << <span class="stringliteral">", "</span> << this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a033246ebae34ce4f17cd3f0cab5a02ac" title="Return the current position in the reader.">getCur</a>() << <span class="stringliteral">", "</span> << this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a77ca5d466916df116adec205fc900011" title="Return the ending position in the reader.">getEnd</a>() << <span class="stringliteral">"]"</span> );
<a name="l00063"></a>00063
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="comment">// reset the stream</span>
<a name="l00066"></a>00066 this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a6c0e268b8b66da89812d7d2f211c1d57" title="Set the value of the current position for reading.">setCur</a>(cur);
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068
<a name="l00069"></a><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#aa7a9567e54804ef5a06e28bc5145672b">00069</a> <a class="code" href="class_i_d3___reader.html#a83194ea4d4e04e81302b095e9aa2275a">ID3_Reader::pos_type</a> <a class="code" href="classdami_1_1io_1_1_windowed_reader.html#aa7a9567e54804ef5a06e28bc5145672b">io::WindowedReader::setBeg</a>(pos_type beg)
<a name="l00070"></a>00070 {
<a name="l00071"></a>00071 <span class="comment">// make sure the position we want to set to isn't past the current</span>
<a name="l00072"></a>00072 <span class="comment">// end position or the superclass's beginning position</span>
<a name="l00073"></a>00073 <span class="keywordflow">if</span> (beg <= this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a77ca5d466916df116adec205fc900011" title="Return the ending position in the reader.">getEnd</a>() && beg >= _reader.<a class="code" href="class_i_d3___reader.html#aeaf468ffe03c08731dcaf268fff3391b" title="Return the beginning position in the reader.">getBeg</a>())
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075 _beg = beg;
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (beg > this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a77ca5d466916df116adec205fc900011" title="Return the ending position in the reader.">getEnd</a>())
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079 ID3D_WARNING( <span class="stringliteral">"WindowedReader::setBeg() failed, [beg, _end] = "</span> <<
<a name="l00080"></a>00080 beg << <span class="stringliteral">", "</span> << this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a77ca5d466916df116adec205fc900011" title="Return the ending position in the reader.">getEnd</a>() << <span class="stringliteral">"]"</span> );
<a name="l00081"></a>00081 }
<a name="l00082"></a>00082 <span class="keywordflow">else</span>
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 ID3D_WARNING( <span class="stringliteral">"WindowedReader::setBeg() failed, [beg, _beg] = "</span> <<
<a name="l00085"></a>00085 beg << <span class="stringliteral">", "</span> << this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a5ce82f2e98fff8d3b824e1fdd1e20dae" title="Return the beginning position in the reader.">getBeg</a>() << <span class="stringliteral">"]"</span> );
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087 <span class="keywordflow">return</span> _beg;
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#af4d73fed0c9ae1f35b7b6a079fdd694d">00090</a> <a class="code" href="class_i_d3___reader.html#a83194ea4d4e04e81302b095e9aa2275a">ID3_Reader::pos_type</a> <a class="code" href="classdami_1_1io_1_1_windowed_reader.html#af4d73fed0c9ae1f35b7b6a079fdd694d">io::WindowedReader::setEnd</a>(pos_type end)
<a name="l00091"></a>00091 {
<a name="l00092"></a>00092 <span class="comment">// make sure the position we want to set to isn't beforen the current</span>
<a name="l00093"></a>00093 <span class="comment">// beginning position or the superclass's end position</span>
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a5ce82f2e98fff8d3b824e1fdd1e20dae" title="Return the beginning position in the reader.">getBeg</a>() <= end && end <= _reader.<a class="code" href="class_i_d3___reader.html#a5872b6813a652d831b770bfb7d65aec8" title="Return the ending position in the reader.">getEnd</a>())
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096 _end = end;
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098 <span class="keywordflow">else</span>
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100 ID3D_WARNING( <span class="stringliteral">"WindowedReader::setEnd() failed, end = "</span> << end );
<a name="l00101"></a>00101 ID3D_WARNING( <span class="stringliteral">"WindowedReader::setEnd() failed, beg = "</span> <<
<a name="l00102"></a>00102 this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a5ce82f2e98fff8d3b824e1fdd1e20dae" title="Return the beginning position in the reader.">getBeg</a>() );
<a name="l00103"></a>00103 ID3D_WARNING( <span class="stringliteral">"WindowedReader::setEnd() failed, super.end = "</span> <<
<a name="l00104"></a>00104 _reader.<a class="code" href="class_i_d3___reader.html#a5872b6813a652d831b770bfb7d65aec8" title="Return the ending position in the reader.">getEnd</a>() );
<a name="l00105"></a>00105
<a name="l00106"></a>00106 }
<a name="l00107"></a>00107 <span class="keywordflow">return</span> _end;
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109
<a name="l00110"></a><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#af505113fe3eb0946124fd9e64afe4c8a">00110</a> <a class="code" href="class_i_d3___reader.html#aa8b2afbb909ee02b838cde53113d1d8b">ID3_Reader::int_type</a> <a class="code" href="classdami_1_1io_1_1_windowed_reader.html#af505113fe3eb0946124fd9e64afe4c8a" title="Read a single character and advance the internal position.">io::WindowedReader::readChar</a>()
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 <a class="code" href="class_i_d3___reader.html#aa8b2afbb909ee02b838cde53113d1d8b">int_type</a> ch = <a class="code" href="class_i_d3___reader.html#a1bde46166e30a5413daa71053a75dc98">END_OF_READER</a>;
<a name="l00113"></a>00113 <span class="keywordflow">if</span> (this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a701bdfaa85bc40a87c543f476b2cc0ae">inWindow</a>())
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115 ch = _reader.<a class="code" href="class_i_d3___reader.html#a36e43a57e3ff194ed6e0416c409fbed3" title="Read a single character and advance the internal position.">readChar</a>();
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 <span class="keywordflow">else</span>
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 ID3D_WARNING( <span class="stringliteral">"io::WindowedReader::readChar: not in window, "</span> <<
<a name="l00120"></a>00120 <span class="stringliteral">"pos = "</span> << this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a033246ebae34ce4f17cd3f0cab5a02ac" title="Return the current position in the reader.">getCur</a>() << <span class="stringliteral">", window = ["</span> <<
<a name="l00121"></a>00121 this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a5ce82f2e98fff8d3b824e1fdd1e20dae" title="Return the beginning position in the reader.">getBeg</a>() << <span class="stringliteral">", "</span> << this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a77ca5d466916df116adec205fc900011" title="Return the ending position in the reader.">getEnd</a>() << <span class="stringliteral">"]"</span>);
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123 <span class="keywordflow">return</span> ch;
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125
<a name="l00126"></a><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a27d83c8e50405c33909080dd4e095563">00126</a> <a class="code" href="class_i_d3___reader.html#aa8b2afbb909ee02b838cde53113d1d8b">ID3_Reader::int_type</a> <a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a27d83c8e50405c33909080dd4e095563" title="Return the next character to be read without advancing the internal position.">io::WindowedReader::peekChar</a>()
<a name="l00127"></a>00127 {
<a name="l00128"></a>00128 <a class="code" href="class_i_d3___reader.html#aa8b2afbb909ee02b838cde53113d1d8b">int_type</a> ch = <a class="code" href="class_i_d3___reader.html#a1bde46166e30a5413daa71053a75dc98">END_OF_READER</a>;
<a name="l00129"></a>00129 <span class="keywordflow">if</span> (this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a701bdfaa85bc40a87c543f476b2cc0ae">inWindow</a>())
<a name="l00130"></a>00130 {
<a name="l00131"></a>00131 ch = _reader.<a class="code" href="class_i_d3___reader.html#af2b67659b76a3f28dac16e3522b552cf" title="Return the next character to be read without advancing the internal position.">peekChar</a>();
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133 <span class="keywordflow">return</span> ch;
<a name="l00134"></a>00134 }
<a name="l00135"></a>00135
<a name="l00136"></a><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#ad3abff7485afcaf9ce119fb502ddec49">00136</a> <a class="code" href="class_i_d3___reader.html#ab3891f70b4b079fe887e2eb707ca060e">ID3_Reader::size_type</a> <a class="code" href="classdami_1_1io_1_1_windowed_reader.html#ad3abff7485afcaf9ce119fb502ddec49" title="Read up to len characters into buf and advance the internal position accordingly...">io::WindowedReader::readChars</a>(char_type buf[], size_type len)
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138 <a class="code" href="class_i_d3___reader.html#a83194ea4d4e04e81302b095e9aa2275a">pos_type</a> cur = this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a033246ebae34ce4f17cd3f0cab5a02ac" title="Return the current position in the reader.">getCur</a>();
<a name="l00139"></a>00139 <a class="code" href="class_i_d3___reader.html#ab3891f70b4b079fe887e2eb707ca060e">size_type</a> size = 0;
<a name="l00140"></a>00140 <span class="keywordflow">if</span> (this-><a class="code" href="classdami_1_1io_1_1_windowed_reader.html#a701bdfaa85bc40a87c543f476b2cc0ae">inWindow</a>(cur))
<a name="l00141"></a>00141 {
<a name="l00142"></a>00142 size = _reader.<a class="code" href="class_i_d3___reader.html#a271015a0481e80ca63bfea9ff9320a50" title="Read up to len characters into buf and advance the internal position accordingly...">readChars</a>(buf, min<size_type>(len, _end - cur));
<a name="l00143"></a>00143 }
<a name="l00144"></a>00144 <span class="keywordflow">return</span> size;
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146
<a name="l00147"></a><a class="code" href="classdami_1_1io_1_1_char_reader.html#a61b7a6cd66f0f5a389acdee591c1b8c7">00147</a> <a class="code" href="class_i_d3___reader.html#ab3891f70b4b079fe887e2eb707ca060e">ID3_Reader::size_type</a> <a class="code" href="classdami_1_1io_1_1_char_reader.html#a61b7a6cd66f0f5a389acdee591c1b8c7" title="Read len characters into the array buf.">io::CharReader::readChars</a>(char_type buf[], size_type len)
<a name="l00148"></a>00148 {
<a name="l00149"></a>00149 <a class="code" href="class_i_d3___reader.html#ab3891f70b4b079fe887e2eb707ca060e">size_type</a> numChars = 0;
<a name="l00150"></a>00150 ID3D_NOTICE( <span class="stringliteral">"CharReader::readChars(): len = "</span> << len );
<a name="l00151"></a>00151 <span class="keywordflow">for</span> (; numChars < len; ++numChars)
<a name="l00152"></a>00152 {
<a name="l00153"></a>00153 <span class="keywordflow">if</span> (this-><a class="code" href="class_i_d3___reader.html#a2d7e9a6e4c4c5f751035ea507c6cadb5">atEnd</a>())
<a name="l00154"></a>00154 {
<a name="l00155"></a>00155 <span class="keywordflow">break</span>;
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157 <a class="code" href="class_i_d3___reader.html#abc80771e4ce81188082eaa8fa90a67e6">char_type</a> ch = this-><a class="code" href="class_i_d3___reader.html#a36e43a57e3ff194ed6e0416c409fbed3" title="Read a single character and advance the internal position.">readChar</a>();
<a name="l00158"></a>00158 <span class="keywordflow">if</span> (buf != <a class="code" href="globals_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)
<a name="l00159"></a>00159 {
<a name="l00160"></a>00160 buf[numChars] = ch;
<a name="l00161"></a>00161 }
<a name="l00162"></a>00162 }
<a name="l00163"></a>00163 ID3D_NOTICE( <span class="stringliteral">"CharReader::readChars(): numChars = "</span> << len );
<a name="l00164"></a>00164 <span class="keywordflow">return</span> numChars;
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166
<a name="l00167"></a><a class="code" href="classdami_1_1io_1_1_line_feed_reader.html#a0aff6030b5f90e81868be447b03b22e6">00167</a> <a class="code" href="class_i_d3___reader.html#aa8b2afbb909ee02b838cde53113d1d8b">ID3_Reader::int_type</a> <a class="code" href="classdami_1_1io_1_1_line_feed_reader.html#a0aff6030b5f90e81868be447b03b22e6" title="Read a single character and advance the internal position.">io::LineFeedReader::readChar</a>()
<a name="l00168"></a>00168 {
<a name="l00169"></a>00169 <span class="keywordflow">if</span> (this-><a class="code" href="class_i_d3___reader.html#a2d7e9a6e4c4c5f751035ea507c6cadb5">atEnd</a>())
<a name="l00170"></a>00170 {
<a name="l00171"></a>00171 <span class="keywordflow">return</span> <a class="code" href="class_i_d3___reader.html#a1bde46166e30a5413daa71053a75dc98">END_OF_READER</a>;
<a name="l00172"></a>00172 }
<a name="l00173"></a>00173 <a class="code" href="class_i_d3___reader.html#abc80771e4ce81188082eaa8fa90a67e6">char_type</a> ch = <a class="code" href="classdami_1_1io_1_1_char_reader.html#a8b3db97177c91571b16cbb3cca38faa0">_reader</a>.<a class="code" href="class_i_d3___reader.html#a36e43a57e3ff194ed6e0416c409fbed3" title="Read a single character and advance the internal position.">readChar</a>();
<a name="l00174"></a>00174 <span class="keywordflow">if</span> (ch == 0x0D && this-><a class="code" href="classdami_1_1io_1_1_char_reader.html#a2133286535fae6ec45fbfa00a04754ef" title="Return the next character to be read without advancing the internal position.">peekChar</a>() == 0x0A)
<a name="l00175"></a>00175 {
<a name="l00176"></a>00176 ID3D_NOTICE( <span class="stringliteral">"LineFeedReader::readChar(): found CRLF at pos "</span> <<
<a name="l00177"></a>00177 this-><a class="code" href="classdami_1_1io_1_1_char_reader.html#af69b47a7e9c96081366f59d9579581b2" title="Return the current position in the reader.">getCur</a>() );
<a name="l00178"></a>00178 ch = <a class="code" href="classdami_1_1io_1_1_char_reader.html#a8b3db97177c91571b16cbb3cca38faa0">_reader</a>.<a class="code" href="class_i_d3___reader.html#a36e43a57e3ff194ed6e0416c409fbed3" title="Read a single character and advance the internal position.">readChar</a>();
<a name="l00179"></a>00179 }
<a name="l00180"></a>00180 <span class="keywordflow">return</span> ch;
<a name="l00181"></a>00181 };
<a name="l00182"></a>00182
<a name="l00183"></a><a class="code" href="classdami_1_1io_1_1_unsynced_reader.html#acb7474aeff73fa4832ae645cb03bcd1a">00183</a> <a class="code" href="class_i_d3___reader.html#aa8b2afbb909ee02b838cde53113d1d8b">ID3_Reader::int_type</a> <a class="code" href="classdami_1_1io_1_1_unsynced_reader.html#acb7474aeff73fa4832ae645cb03bcd1a" title="Read a single character and advance the internal position.">io::UnsyncedReader::readChar</a>()
<a name="l00184"></a>00184 {
<a name="l00185"></a>00185 <span class="keywordflow">if</span> (this-><a class="code" href="class_i_d3___reader.html#a2d7e9a6e4c4c5f751035ea507c6cadb5">atEnd</a>())
<a name="l00186"></a>00186 {
<a name="l00187"></a>00187 <span class="keywordflow">return</span> <a class="code" href="class_i_d3___reader.html#a1bde46166e30a5413daa71053a75dc98">END_OF_READER</a>;
<a name="l00188"></a>00188 }
<a name="l00189"></a>00189 <a class="code" href="class_i_d3___reader.html#abc80771e4ce81188082eaa8fa90a67e6">char_type</a> ch = <a class="code" href="classdami_1_1io_1_1_char_reader.html#a8b3db97177c91571b16cbb3cca38faa0">_reader</a>.<a class="code" href="class_i_d3___reader.html#a36e43a57e3ff194ed6e0416c409fbed3" title="Read a single character and advance the internal position.">readChar</a>();
<a name="l00190"></a>00190 <span class="keywordflow">if</span> (ch == 0xFF && this-><a class="code" href="classdami_1_1io_1_1_char_reader.html#a2133286535fae6ec45fbfa00a04754ef" title="Return the next character to be read without advancing the internal position.">peekChar</a>() == 0x00)
<a name="l00191"></a>00191 {
<a name="l00192"></a>00192 ID3D_NOTICE( <span class="stringliteral">"UnsyncedReader::readChar(): found sync at pos "</span> <<
<a name="l00193"></a>00193 this-><a class="code" href="classdami_1_1io_1_1_char_reader.html#af69b47a7e9c96081366f59d9579581b2" title="Return the current position in the reader.">getCur</a>() );
<a name="l00194"></a>00194 <a class="code" href="classdami_1_1io_1_1_char_reader.html#a8b3db97177c91571b16cbb3cca38faa0">_reader</a>.<a class="code" href="class_i_d3___reader.html#a36e43a57e3ff194ed6e0416c409fbed3" title="Read a single character and advance the internal position.">readChar</a>();
<a name="l00195"></a>00195 }
<a name="l00196"></a>00196 <span class="keywordflow">return</span> ch;
<a name="l00197"></a>00197 }
<a name="l00198"></a>00198
<a name="l00199"></a><a class="code" href="classdami_1_1io_1_1_compressed_reader.html#a083eee6e30b4b2a3abcd0228bdc62734">00199</a> <a class="code" href="classdami_1_1io_1_1_compressed_reader.html#a083eee6e30b4b2a3abcd0228bdc62734">io::CompressedReader::CompressedReader</a>(<a class="code" href="class_i_d3___reader.html">ID3_Reader</a>& reader, size_type newSize)
<a name="l00200"></a>00200 : _uncompressed(new char_type[newSize])
<a name="l00201"></a>00201 {
<a name="l00202"></a>00202 <a class="code" href="class_i_d3___reader.html#ab3891f70b4b079fe887e2eb707ca060e">size_type</a> oldSize = reader.<a class="code" href="class_i_d3___reader.html#a8b516ba5335293c2f278c711161a3aec">remainingBytes</a>();
<a name="l00203"></a>00203
<a name="l00204"></a>00204 BString binary = <a class="code" href="namespacedami_1_1io.html#a63809196c867f3c6ca55767d4670229f">readBinary</a>(reader, oldSize);
<a name="l00205"></a>00205
<a name="l00206"></a>00206 ::uncompress(_uncompressed,
<a name="l00207"></a>00207 <span class="keyword">reinterpret_cast<</span><a class="code" href="globals_8h.html#a31c81a77cfd373514f7878719897fca6">luint</a>*<span class="keyword">></span>(&newSize),
<a name="l00208"></a>00208 reinterpret_cast<const uchar*>(binary.data()),
<a name="l00209"></a>00209 oldSize);
<a name="l00210"></a>00210 this-><a class="code" href="class_i_d3___memory_reader.html#a9ecad00b4e5e465878658c0cca102f88">setBuffer</a>(_uncompressed, newSize);
<a name="l00211"></a>00211 }
<a name="l00212"></a>00212
<a name="l00213"></a><a class="code" href="classdami_1_1io_1_1_compressed_reader.html#a129298d6d51be2cabf57ec4a0b9c5b2b">00213</a> <a class="code" href="classdami_1_1io_1_1_compressed_reader.html#a129298d6d51be2cabf57ec4a0b9c5b2b">io::CompressedReader::~CompressedReader</a>()
<a name="l00214"></a>00214 {
<a name="l00215"></a>00215 <span class="keyword">delete</span> [] _uncompressed;
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217
<a name="l00218"></a><a class="code" href="classdami_1_1io_1_1_unsynced_writer.html#a5accc3b8c6c8891038db1f78f0ff5157">00218</a> <a class="code" href="class_i_d3___writer.html#a2bc2a476eaf88ae5661bfb27f2a0a836">ID3_Writer::int_type</a> <a class="code" href="classdami_1_1io_1_1_unsynced_writer.html#a5accc3b8c6c8891038db1f78f0ff5157" title="Write a single character and advance the internal position.">io::UnsyncedWriter::writeChar</a>(char_type ch)
<a name="l00219"></a>00219 {
<a name="l00220"></a>00220 <span class="keywordflow">if</span> (_last == 0xFF && (ch == 0x00 || ch >= 0xE0))
<a name="l00221"></a>00221 {
<a name="l00222"></a>00222 _writer.<a class="code" href="class_i_d3___writer.html#a2fd7fda2100f38a45038b80de8ed4432" title="Write a single character and advance the internal position.">writeChar</a>(<span class="charliteral">'\0'</span>);
<a name="l00223"></a>00223 _numSyncs++;
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225 _last = _writer.<a class="code" href="class_i_d3___writer.html#a2fd7fda2100f38a45038b80de8ed4432" title="Write a single character and advance the internal position.">writeChar</a>(ch);
<a name="l00226"></a>00226 <span class="keywordflow">return</span> _last;
<a name="l00227"></a>00227 }
<a name="l00228"></a>00228
<a name="l00229"></a><a class="code" href="classdami_1_1io_1_1_unsynced_writer.html#aa55a7e411535e4bada76e7c831b4679a">00229</a> <span class="keywordtype">void</span> <a class="code" href="classdami_1_1io_1_1_unsynced_writer.html#aa55a7e411535e4bada76e7c831b4679a" title="Flush the writer.">io::UnsyncedWriter::flush</a>()
<a name="l00230"></a>00230 {
<a name="l00231"></a>00231 <span class="keywordflow">if</span> (_last == 0xFF)
<a name="l00232"></a>00232 {
<a name="l00233"></a>00233 _last = _writer.<a class="code" href="class_i_d3___writer.html#a2fd7fda2100f38a45038b80de8ed4432" title="Write a single character and advance the internal position.">writeChar</a>(<span class="charliteral">'\0'</span>);
<a name="l00234"></a>00234 _numSyncs++;
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236 _writer.<a class="code" href="class_i_d3___writer.html#ad93e96e4c66fe115606b5770eca5ec65" title="Flush the writer.">flush</a>();
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <a class="code" href="class_i_d3___writer.html#afc6c0639631a72aca77af87de8bad947">ID3_Writer::size_type</a>
<a name="l00240"></a><a class="code" href="classdami_1_1io_1_1_unsynced_writer.html#a5aee931c8d2d020d4e5b1578c6235105">00240</a> <a class="code" href="classdami_1_1io_1_1_unsynced_writer.html#a5aee931c8d2d020d4e5b1578c6235105" title="Write len characters into the array buf.">io::UnsyncedWriter::writeChars</a>(<span class="keyword">const</span> char_type buf[], size_type len)
<a name="l00241"></a>00241 {
<a name="l00242"></a>00242 <a class="code" href="class_i_d3___writer.html#acc8ea5caeb95f604ab658d6ccd50b13c">pos_type</a> beg = this-><a class="code" href="classdami_1_1io_1_1_unsynced_writer.html#ab078adbb838a810438c2bcdd347a7460" title="Return the next position that will be written to.">getCur</a>();
<a name="l00243"></a>00243 ID3D_NOTICE( <span class="stringliteral">"UnsyncedWriter::writeChars(): len = "</span> << len );
<a name="l00244"></a>00244 <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < len; ++i)
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246 <span class="keywordflow">if</span> (this-><a class="code" href="class_i_d3___writer.html#a6b6a9a7d697332c154b779353b013d00">atEnd</a>())
<a name="l00247"></a>00247 {
<a name="l00248"></a>00248 <span class="keywordflow">break</span>;
<a name="l00249"></a>00249 }
<a name="l00250"></a>00250 this-><a class="code" href="classdami_1_1io_1_1_unsynced_writer.html#a5accc3b8c6c8891038db1f78f0ff5157" title="Write a single character and advance the internal position.">writeChar</a>(buf[i]);
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252 <a class="code" href="class_i_d3___writer.html#afc6c0639631a72aca77af87de8bad947">size_type</a> numChars = this-><a class="code" href="classdami_1_1io_1_1_unsynced_writer.html#ab078adbb838a810438c2bcdd347a7460" title="Return the next position that will be written to.">getCur</a>() - beg;
<a name="l00253"></a>00253 ID3D_NOTICE( <span class="stringliteral">"CharWriter::writeChars(): numChars = "</span> << numChars );
<a name="l00254"></a>00254 <span class="keywordflow">return</span> numChars;
<a name="l00255"></a>00255 }
<a name="l00256"></a>00256
<a name="l00257"></a><a class="code" href="classdami_1_1io_1_1_compressed_writer.html#a84d1e6ce07149240c26d17b8b40782f1">00257</a> <span class="keywordtype">void</span> <a class="code" href="classdami_1_1io_1_1_compressed_writer.html#a84d1e6ce07149240c26d17b8b40782f1" title="Flush the writer.">io::CompressedWriter::flush</a>()
<a name="l00258"></a>00258 {
<a name="l00259"></a>00259 <span class="keywordflow">if</span> (_data.size() == 0)
<a name="l00260"></a>00260 {
<a name="l00261"></a>00261 <span class="keywordflow">return</span>;
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263 <span class="keyword">const</span> <a class="code" href="class_i_d3___writer.html#a994b16b0240f854ce6e50f58a93bae23">char_type</a>* data = <span class="keyword">reinterpret_cast<</span><span class="keyword">const </span><a class="code" href="class_i_d3___writer.html#a994b16b0240f854ce6e50f58a93bae23">char_type</a>*<span class="keyword">></span>(_data.data());
<a name="l00264"></a>00264 <a class="code" href="class_i_d3___writer.html#afc6c0639631a72aca77af87de8bad947">size_type</a> dataSize = _data.size();
<a name="l00265"></a>00265 _origSize = dataSize;
<a name="l00266"></a>00266 <span class="comment">// The zlib documentation specifies that the destination size needs to</span>
<a name="l00267"></a>00267 <span class="comment">// be an unsigned long at least 0.1% larger than the source buffer,</span>
<a name="l00268"></a>00268 <span class="comment">// plus 12 bytes</span>
<a name="l00269"></a>00269 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> newDataSize = dataSize + (dataSize / 10) + 12;
<a name="l00270"></a>00270 <a class="code" href="class_i_d3___writer.html#a994b16b0240f854ce6e50f58a93bae23">char_type</a>* newData = <span class="keyword">new</span> <a class="code" href="class_i_d3___writer.html#a994b16b0240f854ce6e50f58a93bae23">char_type</a>[newDataSize];
<a name="l00271"></a>00271 <span class="keywordflow">if</span> (::compress(newData, &newDataSize, data, dataSize) != Z_OK)
<a name="l00272"></a>00272 {
<a name="l00273"></a>00273 <span class="comment">// log this</span>
<a name="l00274"></a>00274 ID3D_WARNING(<span class="stringliteral">"io::CompressedWriter: error compressing"</span>);
<a name="l00275"></a>00275 _writer.<a class="code" href="class_i_d3___writer.html#a287fd94f06b37fb638029b904e6f1d42" title="Write up to len characters into buf and advance the internal position accordingly...">writeChars</a>(data, dataSize);
<a name="l00276"></a>00276 }
<a name="l00277"></a>00277 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (newDataSize < dataSize)
<a name="l00278"></a>00278 {
<a name="l00279"></a>00279 ID3D_NOTICE(<span class="stringliteral">"io::CompressedWriter: compressed size = "</span> << newDataSize << <span class="stringliteral">", original size = "</span> << dataSize );
<a name="l00280"></a>00280 _writer.<a class="code" href="class_i_d3___writer.html#a287fd94f06b37fb638029b904e6f1d42" title="Write up to len characters into buf and advance the internal position accordingly...">writeChars</a>(newData, newDataSize);
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282 <span class="keywordflow">else</span>
<a name="l00283"></a>00283 {
<a name="l00284"></a>00284 ID3D_NOTICE(<span class="stringliteral">"io::CompressedWriter: no compression!compressed size = "</span> << newDataSize << <span class="stringliteral">", original size = "</span> << dataSize );
<a name="l00285"></a>00285 _writer.<a class="code" href="class_i_d3___writer.html#a287fd94f06b37fb638029b904e6f1d42" title="Write up to len characters into buf and advance the internal position accordingly...">writeChars</a>(data, dataSize);
<a name="l00286"></a>00286 }
<a name="l00287"></a>00287 <span class="keyword">delete</span> [] newData;
<a name="l00288"></a>00288 _data.erase();
<a name="l00289"></a>00289 }
<a name="l00290"></a>00290
<a name="l00291"></a>00291 <a class="code" href="class_i_d3___writer.html#afc6c0639631a72aca77af87de8bad947">ID3_Writer::size_type</a>
<a name="l00292"></a><a class="code" href="classdami_1_1io_1_1_compressed_writer.html#aa5752a5dcf1fd10e11bd2974a0af74a1">00292</a> <a class="code" href="classdami_1_1io_1_1_compressed_writer.html#aa5752a5dcf1fd10e11bd2974a0af74a1" title="Write up to len characters into buf and advance the internal position accordingly...">io::CompressedWriter::writeChars</a>(<span class="keyword">const</span> char_type buf[], size_type len)
<a name="l00293"></a>00293 {
<a name="l00294"></a>00294 ID3D_NOTICE(<span class="stringliteral">"io::CompressedWriter: writing chars: "</span> << len );
<a name="l00295"></a>00295 _data.append(buf, len);
<a name="l00296"></a>00296 <span class="keywordflow">return</span> len;
<a name="l00297"></a>00297 }
<a name="l00298"></a>00298
</pre></div></div>
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