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<h1>ccvt.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* CCVT: ColourConVerT: simple library for converting colourspaces</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (C) 2002 Nemosoft Unv.</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment"> This program is free software; you can redistribute it and/or modify</span>
<a name="l00005"></a>00005 <span class="comment"> it under the terms of the GNU General Public License as published by</span>
<a name="l00006"></a>00006 <span class="comment"> the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00007"></a>00007 <span class="comment"> (at your option) any later version.</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00012"></a>00012 <span class="comment"> GNU General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment"> You should have received a copy of the GNU General Public License</span>
<a name="l00015"></a>00015 <span class="comment"> along with this program; if not, write to the Free Software</span>
<a name="l00016"></a>00016 <span class="comment"> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<a name="l00017"></a>00017 <span class="comment"></span>
<a name="l00018"></a>00018 <span class="comment"> For questions, remarks, patches, etc. for this program, the author can be</span>
<a name="l00019"></a>00019 <span class="comment"> reached at nemosoft@smcc.demon.nl.</span>
<a name="l00020"></a>00020 <span class="comment">*/</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="comment">/* </span>
<a name="l00023"></a>00023 <span class="comment"> $Log$</span>
<a name="l00024"></a>00024 <span class="comment"> Revision 1.1 2005/05/04 06:53:17 section314</span>
<a name="l00025"></a>00025 <span class="comment"> Added YUV420P-->RGB conversion</span>
<a name="l00026"></a>00026 <span class="comment"></span>
<a name="l00027"></a>00027 <span class="comment"> Revision 1.10 2003/10/24 16:55:18 nemosoft</span>
<a name="l00028"></a>00028 <span class="comment"> removed erronous log messages</span>
<a name="l00029"></a>00029 <span class="comment"></span>
<a name="l00030"></a>00030 <span class="comment"> Revision 1.9 2002/11/03 22:46:25 nemosoft</span>
<a name="l00031"></a>00031 <span class="comment"> Adding various RGB to RGB functions.</span>
<a name="l00032"></a>00032 <span class="comment"> Adding proper copyright header too.</span>
<a name="l00033"></a>00033 <span class="comment"></span>
<a name="l00034"></a>00034 <span class="comment"> Revision 1.8 2002/04/14 01:00:27 nemosoft</span>
<a name="l00035"></a>00035 <span class="comment"> Finishing touches: adding const, adding libs for 'show'</span>
<a name="l00036"></a>00036 <span class="comment">*/</span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="preprocessor">#ifndef CCVT_H</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="preprocessor">#define CCVT_H</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span>
<a name="l00042"></a>00042 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {
<a name="l00044"></a>00044 <span class="preprocessor">#endif</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span>
<a name="l00046"></a>00046 <span class="comment">/* Colour ConVerT: going from one colour space to another.</span>
<a name="l00047"></a>00047 <span class="comment"> ** NOTE: the set of available functions is far from complete! **</span>
<a name="l00048"></a>00048 <span class="comment"></span>
<a name="l00049"></a>00049 <span class="comment"> Format descriptions:</span>
<a name="l00050"></a>00050 <span class="comment"> 420i = "4:2:0 interlaced"</span>
<a name="l00051"></a>00051 <span class="comment"> YYYY UU YYYY UU even lines</span>
<a name="l00052"></a>00052 <span class="comment"> YYYY VV YYYY VV odd lines</span>
<a name="l00053"></a>00053 <span class="comment"> U/V data is subsampled by 2 both in horizontal </span>
<a name="l00054"></a>00054 <span class="comment"> and vertical directions, and intermixed with the Y values.</span>
<a name="l00055"></a>00055 <span class="comment"> </span>
<a name="l00056"></a>00056 <span class="comment"> 420p = "4:2:0 planar"</span>
<a name="l00057"></a>00057 <span class="comment"> YYYYYYYY N lines</span>
<a name="l00058"></a>00058 <span class="comment"> UUUU N/2 lines</span>
<a name="l00059"></a>00059 <span class="comment"> VVVV N/2 lines</span>
<a name="l00060"></a>00060 <span class="comment"> U/V is again subsampled, but all the Ys, Us and Vs are placed</span>
<a name="l00061"></a>00061 <span class="comment"> together in separate buffers. The buffers may be placed in</span>
<a name="l00062"></a>00062 <span class="comment"> one piece of contiguous memory though, with Y buffer first,</span>
<a name="l00063"></a>00063 <span class="comment"> followed by U, followed by V.</span>
<a name="l00064"></a>00064 <span class="comment"></span>
<a name="l00065"></a>00065 <span class="comment"> yuyv = "4:2:2 interlaced"</span>
<a name="l00066"></a>00066 <span class="comment"> YUYV YUYV YUYV ... N lines</span>
<a name="l00067"></a>00067 <span class="comment"> The U/V data is subsampled by 2 in horizontal direction only.</span>
<a name="l00068"></a>00068 <span class="comment"></span>
<a name="l00069"></a>00069 <span class="comment"> bgr24 = 3 bytes per pixel, in the order Blue Green Red (whoever came up</span>
<a name="l00070"></a>00070 <span class="comment"> with that idea...)</span>
<a name="l00071"></a>00071 <span class="comment"> rgb24 = 3 bytes per pixel, in the order Red Green Blue (which is sensible)</span>
<a name="l00072"></a>00072 <span class="comment"> rgb32 = 4 bytes per pixel, in the order Red Green Blue Alpha, with </span>
<a name="l00073"></a>00073 <span class="comment"> Alpha really being a filler byte (0)</span>
<a name="l00074"></a>00074 <span class="comment"> bgr32 = last but not least, 4 bytes per pixel, in the order Blue Green Red</span>
<a name="l00075"></a>00075 <span class="comment"> Alpha, Alpha again a filler byte (0)</span>
<a name="l00076"></a>00076 <span class="comment"> */</span>
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="comment">/* 4:2:0 YUV planar to RGB/BGR */</span>
<a name="l00079"></a>00079 <span class="keywordtype">void</span> ccvt_420p_bgr24(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *src, <span class="keywordtype">void</span> *dst);
<a name="l00080"></a>00080 <span class="keywordtype">void</span> ccvt_420p_rgb24(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *src, <span class="keywordtype">void</span> *dst);
<a name="l00081"></a>00081 <span class="keywordtype">void</span> ccvt_420p_bgr32(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *src, <span class="keywordtype">void</span> *dst);
<a name="l00082"></a>00082 <span class="keywordtype">void</span> ccvt_420p_rgb32(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *src, <span class="keywordtype">void</span> *dst);
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="comment">/* 4:2:2 YUYV interlaced to RGB/BGR */</span>
<a name="l00085"></a>00085 <span class="keywordtype">void</span> ccvt_yuyv_rgb32(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *src, <span class="keywordtype">void</span> *dst);
<a name="l00086"></a>00086 <span class="keywordtype">void</span> ccvt_yuyv_bgr32(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *src, <span class="keywordtype">void</span> *dst);
<a name="l00087"></a>00087
<a name="l00088"></a>00088 <span class="comment">/* 4:2:2 YUYV interlaced to 4:2:0 YUV planar */</span>
<a name="l00089"></a>00089 <span class="keywordtype">void</span> ccvt_yuyv_420p(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *src, <span class="keywordtype">void</span> *dsty, <span class="keywordtype">void</span> *dstu, <span class="keywordtype">void</span> *dstv);
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="comment">/* RGB/BGR to 4:2:0 YUV interlaced */</span>
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="comment">/* RGB/BGR to 4:2:0 YUV planar */</span>
<a name="l00094"></a>00094 <span class="keywordtype">void</span> ccvt_rgb24_420p(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *src, <span class="keywordtype">void</span> *dsty, <span class="keywordtype">void</span> *dstu, <span class="keywordtype">void</span> *dstv);
<a name="l00095"></a>00095 <span class="keywordtype">void</span> ccvt_bgr24_420p(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *src, <span class="keywordtype">void</span> *dsty, <span class="keywordtype">void</span> *dstu, <span class="keywordtype">void</span> *dstv);
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="comment">/* RGB/BGR to RGB/BGR */</span>
<a name="l00098"></a>00098 <span class="keywordtype">void</span> ccvt_bgr24_bgr32(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *<span class="keyword">const</span> src, <span class="keywordtype">void</span> *<span class="keyword">const</span> dst);
<a name="l00099"></a>00099 <span class="keywordtype">void</span> ccvt_bgr24_rgb32(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *<span class="keyword">const</span> src, <span class="keywordtype">void</span> *<span class="keyword">const</span> dst);
<a name="l00100"></a>00100 <span class="keywordtype">void</span> ccvt_bgr32_bgr24(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *<span class="keyword">const</span> src, <span class="keywordtype">void</span> *<span class="keyword">const</span> dst);
<a name="l00101"></a>00101 <span class="keywordtype">void</span> ccvt_bgr32_rgb24(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *<span class="keyword">const</span> src, <span class="keywordtype">void</span> *<span class="keyword">const</span> dst);
<a name="l00102"></a>00102 <span class="keywordtype">void</span> ccvt_rgb24_bgr32(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *<span class="keyword">const</span> src, <span class="keywordtype">void</span> *<span class="keyword">const</span> dst);
<a name="l00103"></a>00103 <span class="keywordtype">void</span> ccvt_rgb24_rgb32(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *<span class="keyword">const</span> src, <span class="keywordtype">void</span> *<span class="keyword">const</span> dst);
<a name="l00104"></a>00104 <span class="keywordtype">void</span> ccvt_rgb32_bgr24(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *<span class="keyword">const</span> src, <span class="keywordtype">void</span> *<span class="keyword">const</span> dst);
<a name="l00105"></a>00105 <span class="keywordtype">void</span> ccvt_rgb32_rgb24(<span class="keywordtype">int</span> width, <span class="keywordtype">int</span> height, <span class="keyword">const</span> <span class="keywordtype">void</span> *<span class="keyword">const</span> src, <span class="keywordtype">void</span> *<span class="keyword">const</span> dst);
<a name="l00106"></a>00106
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00109"></a>00109 <span class="preprocessor"></span>}
<a name="l00110"></a>00110 <span class="preprocessor">#endif</span>
<a name="l00111"></a>00111 <span class="preprocessor"></span>
<a name="l00112"></a>00112 <span class="preprocessor">#endif</span>
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