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<h1>plfilesrc.h</h1><div class="fragment"><pre>00001 <span class="comment">/*</span>
00002 <span class="comment">/--------------------------------------------------------------------</span>
00003 <span class="comment">|</span>
00004 <span class="comment">| $Id: plfilesrc_8h-source.html,v 1.4 2004/09/15 15:26:29 uzadow Exp $</span>
00005 <span class="comment">|</span>
00006 <span class="comment">| Copyright (c) 1996-2002 Ulrich von Zadow</span>
00007 <span class="comment">|</span>
00008 <span class="comment">\--------------------------------------------------------------------</span>
00009 <span class="comment">*/</span>
00010
00011 <span class="preprocessor">#ifndef INCL_PLFILESRC</span>
00012 <span class="preprocessor"></span><span class="preprocessor">#define INCL_PLFILESRC</span>
00013 <span class="preprocessor"></span>
00014 <span class="preprocessor">#ifndef INCL_PLDATASRC</span>
00015 <span class="preprocessor"></span><span class="preprocessor">#include "pldatasrc.h"</span>
00016 <span class="preprocessor">#endif</span>
00017 <span class="preprocessor"></span>
00018 <span class="preprocessor">#include "config.h"</span>
00019
00020
00021 <span class="preprocessor">#ifdef _WINDOWS</span>
00022 <span class="preprocessor"></span> <span class="keyword">typedef</span> <span class="keywordtype">void</span> *HANDLE;
00023 <span class="preprocessor">#endif</span>
00024 <span class="preprocessor"></span>
00025 <span class="preprocessor">#include <stdio.h></span>
00026
00027 <span class="keyword">class </span><a class="code" href="classPLIProgressNotification.html">PLIProgressNotification</a>;
00028 <span class="comment"></span>
00029 <span class="comment">//! This is a class which takes a file as a source of picture data.</span>
<a name="l00030"></a><a class="code" href="classPLFileSource.html">00030</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="classPLFileSource.html">PLFileSource</a> : <span class="keyword">public</span> <a class="code" href="classPLDataSource.html">PLDataSource</a>
00031 {
00032
00033 <span class="keyword">public</span>:<span class="comment"></span>
00034 <span class="comment"> //!</span>
00035 <span class="comment"></span> <a class="code" href="classPLFileSource.html">PLFileSource</a>
00036 ( <a class="code" href="classPLIProgressNotification.html">PLIProgressNotification</a> * pNotification = NULL
00037 );
00038 <span class="comment"></span>
00039 <span class="comment"> //!</span>
00040 <span class="comment"></span> <span class="keyword">virtual</span> ~<a class="code" href="classPLFileSource.html">PLFileSource</a>
00041 ();
00042 <span class="comment"></span>
00043 <span class="comment"> //!</span>
00044 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">int</span> Open
00045 ( <span class="keyword">const</span> <span class="keywordtype">char</span> * pszFName
00046 );
00047 <span class="preprocessor">#ifdef _WINDOWS</span>
00048 <span class="preprocessor"></span> <span class="keyword">virtual</span> <span class="keywordtype">int</span> OpenW
00049 ( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span> * pszwFName
00050 );
00051 <span class="preprocessor">#endif</span>
00052 <span class="preprocessor"></span><span class="comment"></span>
00053 <span class="comment"> //!</span>
00054 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Close
00055 ();
00056
00057 <span class="keyword">virtual</span> PLBYTE * <a class="code" href="classPLFileSource.html#a4">ReadNBytes</a>
00058 ( <span class="keywordtype">int</span> n
00059 );
00060 <span class="comment"></span>
00061 <span class="comment"> //! Read but don't advance file pointer.</span>
00062 <span class="comment"></span> <span class="keyword">virtual</span> PLBYTE * <a class="code" href="classPLFileSource.html#a5">GetBufferPtr</a>
00063 ( <span class="keywordtype">int</span> MinBytesInBuffer
00064 );
00065
00066 <span class="keyword">virtual</span> PLBYTE * <a class="code" href="classPLFileSource.html#a6">ReadEverything</a>
00067 ();
00068 <span class="comment"></span>
00069 <span class="comment"> //!</span>
00070 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> Seek
00071 ( <span class="keywordtype">int</span> n
00072 );
00073
00074 <span class="keyword">private</span>:
00075 <span class="keywordtype">void</span> isBufferOk (<span class="keywordtype">int</span> NumBytes);
00076 <span class="preprocessor">#ifdef _WINDOWS</span>
00077 <span class="preprocessor"></span> <span class="keywordtype">int</span> mapFileHandle();
00078 <span class="keywordtype">int</span> getLastPLError();
00079
00080 HANDLE m_hf; <span class="comment">// File handle.</span>
00081 HANDLE m_hm; <span class="comment">// Handle to file-mapping object.</span>
00082 <span class="preprocessor">#else</span>
00083 <span class="preprocessor"></span><span class="preprocessor"> #ifdef HAVE_MMAP</span>
00084 <span class="preprocessor"></span>
00085 <span class="preprocessor"> #else </span>
00086 <span class="preprocessor"></span> <span class="keywordtype">bool</span> bytesAvailable
00087 ( <span class="keywordtype">int</span> n
00088 );
00089
00090 <span class="keywordtype">void</span> fillBuffer
00091 ( <span class="keywordtype">int</span> n = 4096
00092 );
00093
00094 FILE * m_pFile;
00095 PLBYTE * m_pBuffer;
00096
00097 PLBYTE * m_pReadPos;
00098 <span class="keywordtype">int</span> m_BytesReadFromFile;
00099 <span class="preprocessor"> #endif</span>
00100 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
00101 <span class="preprocessor"></span> PLBYTE * m_pStartData;
00102 PLBYTE * m_pCurPos;
00103 };
00104
00105 <span class="preprocessor">#endif</span>
00106 <span class="preprocessor"></span><span class="comment">/*</span>
00107 <span class="comment">/--------------------------------------------------------------------</span>
00108 <span class="comment">|</span>
00109 <span class="comment">| $Log: plfilesrc_8h-source.html,v $
00109 <span class="comment">| Revision 1.4 2004/09/15 15:26:29 uzadow
00109 <span class="comment">| Linux compatibility changes, doc update.
00109 <span class="comment">|</span>
00110 <span class="comment">| Revision 1.10 2004/09/11 12:41:35 uzadow</span>
00111 <span class="comment">| removed plstdpch.h</span>
00112 <span class="comment">|</span>
00113 <span class="comment">| Revision 1.9 2004/08/20 14:39:37 uzadow</span>
00114 <span class="comment">| Added rle format to sgi decoder. Doesn't work yet, though.</span>
00115 <span class="comment">|</span>
00116 <span class="comment">| Revision 1.8 2003/11/22 13:11:34 uzadow</span>
00117 <span class="comment">| Added memory-mapped file support for linux</span>
00118 <span class="comment">|</span>
00119 <span class="comment">| Revision 1.7 2003/08/03 12:36:56 uzadow</span>
00120 <span class="comment">| Added unicode support; fixed some header includes.</span>
00121 <span class="comment">|</span>
00122 <span class="comment">| Revision 1.6 2003/08/03 12:03:20 uzadow</span>
00123 <span class="comment">| Added unicode support; fixed some header includes.</span>
00124 <span class="comment">|</span>
00125 <span class="comment">| Revision 1.5 2003/04/20 22:20:49 uzadow</span>
00126 <span class="comment">| Added check for errors reading memory-mapped files.</span>
00127 <span class="comment">|</span>
00128 <span class="comment">| Revision 1.4 2002/03/31 13:36:41 uzadow</span>
00129 <span class="comment">| Updated copyright.</span>
00130 <span class="comment">|</span>
00131 <span class="comment">| Revision 1.3 2001/10/06 22:37:08 uzadow</span>
00132 <span class="comment">| Linux compatibility.</span>
00133 <span class="comment">|</span>
00134 <span class="comment">| Revision 1.2 2001/09/16 20:57:17 uzadow</span>
00135 <span class="comment">| Linux version name prefix changes</span>
00136 <span class="comment">|</span>
00137 <span class="comment">| Revision 1.1 2001/09/16 19:03:22 uzadow</span>
00138 <span class="comment">| Added global name prefix PL, changed most filenames.</span>
00139 <span class="comment">|</span>
00140 <span class="comment">| Revision 1.4 2001/09/13 20:46:45 uzadow</span>
00141 <span class="comment">| Removed 4096-byte limit for fillBuffer that was causing PLPNGEncoder</span>
00142 <span class="comment">| to fail under Linux.</span>
00143 <span class="comment">|</span>
00144 <span class="comment">|</span>
00145 <span class="comment">\--------------------------------------------------------------------</span>
00146 <span class="comment">*/</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Sep 13 16:16:40 2004 for paintlib by
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