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<h1>/home/dwoods/DevIL/src-IL/include/il_targa.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">//-----------------------------------------------------------------------------</span>
<a name="l00002"></a>00002 <span class="comment">//</span>
<a name="l00003"></a>00003 <span class="comment">// ImageLib Sources</span>
<a name="l00004"></a>00004 <span class="comment">// Copyright (C) 2000-2002 by Denton Woods</span>
<a name="l00005"></a>00005 <span class="comment">// Last modified: 05/25/2001 &lt;--Y2K Compliant! =]</span>
<a name="l00006"></a>00006 <span class="comment">//</span>
<a name="l00007"></a>00007 <span class="comment">// Filename: src-IL/include/il_targa.h</span>
<a name="l00008"></a>00008 <span class="comment">//</span>
<a name="l00009"></a>00009 <span class="comment">// Description: Targa (.tga) functions</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">//-----------------------------------------------------------------------------</span>
<a name="l00012"></a>00012 
<a name="l00013"></a>00013 
<a name="l00014"></a>00014 <span class="preprocessor">#ifndef TARGA_H</span>
<a name="l00015"></a>00015 <span class="preprocessor"></span><span class="preprocessor">#define TARGA_H</span>
<a name="l00016"></a>00016 <span class="preprocessor"></span>
<a name="l00017"></a>00017 <span class="preprocessor">#include "il_internal.h"</span>
<a name="l00018"></a>00018 
<a name="l00019"></a>00019 <span class="preprocessor">#ifdef _MSC_VER</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span><span class="preprocessor">#pragma pack(push, tga_struct, 1)</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#elif defined(MACOSX) || defined(__GNUC__)</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#pragma pack(1)</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="keyword">typedef</span> <span class="keyword">struct </span>TARGAHEAD
<a name="l00026"></a>00026 {
<a name="l00027"></a>00027         ILubyte         IDLen;
<a name="l00028"></a>00028         ILubyte         ColMapPresent;
<a name="l00029"></a>00029         ILubyte         ImageType;
<a name="l00030"></a>00030         ILshort         FirstEntry;
<a name="l00031"></a>00031         ILshort         ColMapLen;
<a name="l00032"></a>00032         ILubyte         ColMapEntSize;
<a name="l00033"></a>00033 
<a name="l00034"></a>00034         ILshort         OriginX;
<a name="l00035"></a>00035         ILshort         OriginY;
<a name="l00036"></a>00036         ILushort        Width;
<a name="l00037"></a>00037         ILushort        Height;
<a name="l00038"></a>00038         ILubyte         Bpp;
<a name="l00039"></a>00039         ILubyte         ImageDesc;
<a name="l00040"></a>00040 } IL_PACKSTRUCT TARGAHEAD;
<a name="l00041"></a>00041 
<a name="l00042"></a>00042 <span class="keyword">typedef</span> <span class="keyword">struct </span>TARGAFOOTER
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044         ILuint ExtOff;                  <span class="comment">// Extension Area Offset</span>
<a name="l00045"></a>00045         ILuint DevDirOff;               <span class="comment">// Developer Directory Offset</span>
<a name="l00046"></a>00046         ILbyte Signature[16];   <span class="comment">// TRUEVISION-XFILE</span>
<a name="l00047"></a>00047         ILbyte Reserved;                <span class="comment">// ASCII period '.'</span>
<a name="l00048"></a>00048         ILbyte NullChar;                <span class="comment">// NULL</span>
<a name="l00049"></a>00049 } IL_PACKSTRUCT TARGAFOOTER;
<a name="l00050"></a>00050 <span class="preprocessor">#if defined(MACOSX) || defined(__GNUC__)</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="preprocessor">#pragma pack()</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span><span class="preprocessor">#elif _MSC_VER</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span><span class="preprocessor">#pragma pack(pop, tga_struct)</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span>
<a name="l00056"></a>00056 <span class="preprocessor">#define TGA_EXT_LEN             495</span>
<a name="l00057"></a>00057 <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keyword">struct </span>TARGAEXT
<a name="l00058"></a>00058 {
<a name="l00059"></a>00059         <span class="comment">// Dev Directory</span>
<a name="l00060"></a>00060         <span class="comment">//      We don't mess with this</span>
<a name="l00061"></a>00061 
<a name="l00062"></a>00062         <span class="comment">// Extension Area</span>
<a name="l00063"></a>00063         ILshort Size;                           <span class="comment">// should be TGA_EXT_LEN</span>
<a name="l00064"></a>00064         ILbyte  AuthName[41];           <span class="comment">// the image author's name</span>
<a name="l00065"></a>00065         ILbyte  AuthComments[324];      <span class="comment">// author's comments</span>
<a name="l00066"></a>00066         ILshort Month, Day, Year, Hour, Minute, Second; <span class="comment">// internal date of file</span>
<a name="l00067"></a>00067         ILbyte  JobID[41];                      <span class="comment">// the job description (if any)</span>
<a name="l00068"></a>00068         ILshort JobHour, JobMin, JobSecs;       <span class="comment">// the job's time</span>
<a name="l00069"></a>00069         ILbyte  SoftwareID[41];         <span class="comment">// the software that created this</span>
<a name="l00070"></a>00070         ILshort SoftwareVer;            <span class="comment">// the software version number * 100</span>
<a name="l00071"></a>00071         ILbyte  SoftwareVerByte;        <span class="comment">// the software version letter</span>
<a name="l00072"></a>00072         ILint   KeyColor;                       <span class="comment">// the transparent colour</span>
<a name="l00073"></a>00073 } TARGAEXT;
<a name="l00074"></a>00074 
<a name="l00075"></a>00075 
<a name="l00076"></a>00076 <span class="comment">// Different Targa formats</span>
<a name="l00077"></a>00077 <span class="preprocessor">#define TGA_NO_DATA                             0</span>
<a name="l00078"></a>00078 <span class="preprocessor"></span><span class="preprocessor">#define TGA_COLMAP_UNCOMP               1</span>
<a name="l00079"></a>00079 <span class="preprocessor"></span><span class="preprocessor">#define TGA_UNMAP_UNCOMP                2</span>
<a name="l00080"></a>00080 <span class="preprocessor"></span><span class="preprocessor">#define TGA_BW_UNCOMP                   3</span>
<a name="l00081"></a>00081 <span class="preprocessor"></span><span class="preprocessor">#define TGA_COLMAP_COMP                 9</span>
<a name="l00082"></a>00082 <span class="preprocessor"></span><span class="preprocessor">#define TGA_UNMAP_COMP                  10</span>
<a name="l00083"></a>00083 <span class="preprocessor"></span><span class="preprocessor">#define TGA_BW_COMP                             11</span>
<a name="l00084"></a>00084 <span class="preprocessor"></span>
<a name="l00085"></a>00085 
<a name="l00086"></a>00086 <span class="comment">// Targa origins</span>
<a name="l00087"></a>00087 <span class="preprocessor">#define IMAGEDESC_ORIGIN_MASK   0x30</span>
<a name="l00088"></a>00088 <span class="preprocessor"></span><span class="preprocessor">#define IMAGEDESC_TOPLEFT               0x20</span>
<a name="l00089"></a>00089 <span class="preprocessor"></span><span class="preprocessor">#define IMAGEDESC_BOTLEFT               0x00</span>
<a name="l00090"></a>00090 <span class="preprocessor"></span><span class="preprocessor">#define IMAGEDESC_BOTRIGHT              0x10</span>
<a name="l00091"></a>00091 <span class="preprocessor"></span><span class="preprocessor">#define IMAGEDESC_TOPRIGHT              0x30</span>
<a name="l00092"></a>00092 <span class="preprocessor"></span>
<a name="l00093"></a>00093 
<a name="l00094"></a>00094 <span class="comment">// Internal functions</span>
<a name="l00095"></a>00095 ILboolean       iIsValidTarga();
<a name="l00096"></a>00096 ILboolean       iGetTgaHead(TARGAHEAD *Header);
<a name="l00097"></a>00097 ILboolean       iCheckTarga(TARGAHEAD *Header);
<a name="l00098"></a>00098 ILboolean       iLoadTargaInternal(<span class="keywordtype">void</span>);
<a name="l00099"></a>00099 ILboolean       iSaveTargaInternal(<span class="keywordtype">void</span>);
<a name="l00100"></a>00100 <span class="comment">//ILvoid                iMakeString(char *Str);</span>
<a name="l00101"></a>00101 ILboolean       iReadBwTga(TARGAHEAD *Header);
<a name="l00102"></a>00102 ILboolean       iReadColMapTga(TARGAHEAD *Header);
<a name="l00103"></a>00103 ILboolean       iReadUnmapTga(TARGAHEAD *Header);
<a name="l00104"></a>00104 ILboolean       iUncompressTgaData(<a class="code" href="structILimage.html" title="The Fundamental Image structure.">ILimage</a> *Image);
<a name="l00105"></a>00105 ILboolean       i16BitTarga(<a class="code" href="structILimage.html" title="The Fundamental Image structure.">ILimage</a> *Image);
<a name="l00106"></a>00106 <span class="keywordtype">void</span>            iGetDateTime(ILuint *Month, ILuint *Day, ILuint *Yr, ILuint *Hr, ILuint *Min, ILuint *Sec);
<a name="l00107"></a>00107 
<a name="l00108"></a>00108 
<a name="l00109"></a>00109 <span class="preprocessor">#endif//TARGA_H</span>
</pre></div></div>
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