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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 <--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>
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