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<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> </center>
<hr><h1>ccvt.h</h1><a href="ccvt_h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="preprocessor">#ifndef CCVT_H</font>
00002 <font class="preprocessor"></font><font class="preprocessor">#define CCVT_H</font>
00003 <font class="preprocessor"></font>
00004 <font class="preprocessor">#ifdef __cplusplus</font>
00005 <font class="preprocessor"></font><font class="keyword">extern</font> <font class="stringliteral">"C"</font> {
00006 <font class="preprocessor">#endif</font>
00007 <font class="preprocessor"></font>
00008 <font class="comment">/* Colour ConVerT: going from one colour space to another</font>
00009 <font class="comment"></font>
00010 <font class="comment"> Format descriptions:</font>
00011 <font class="comment"> 420i = "4:2:0 interlaced"</font>
00012 <font class="comment"> YYYY UU YYYY UU even lines</font>
00013 <font class="comment"> YYYY VV YYYY VV odd lines</font>
00014 <font class="comment"> U/V data is subsampled by 2 both in horizontal </font>
00015 <font class="comment"> and vertical directions, and intermixed with the Y values.</font>
00016 <font class="comment"> </font>
00017 <font class="comment"> 420p = "4:2:0 planar"</font>
00018 <font class="comment"> YYYYYYYY N lines</font>
00019 <font class="comment"> UUUU N/2 lines</font>
00020 <font class="comment"> VVVV N/2 lines</font>
00021 <font class="comment"> U/V is again subsampled, but all the Ys, Us and Vs are placed </font>
00022 <font class="comment"> together, but in separate buffers. The buffers may be placed in</font>
00023 <font class="comment"> one piece of contiguous memory though, with Y buffer first,</font>
00024 <font class="comment"> followed by U, folloed by V.</font>
00025 <font class="comment"></font>
00026 <font class="comment"> yuyv = "4:2:2 interlaced"</font>
00027 <font class="comment"> YUYV YUYV YUYV ... N lines</font>
00028 <font class="comment"> The U/V data is subsampled by 2 in horizontal direction only.</font>
00029 <font class="comment"></font>
00030 <font class="comment"> bgr24 = 3 bytes per pixel, in the order Blue Green Red (whoever came up</font>
00031 <font class="comment"> with that idea...)</font>
00032 <font class="comment"> rgb24 = 3 bytes per pixel, in the order Red Green Blue (which is sensible)</font>
00033 <font class="comment"> rgb32 = 4 bytes per pixel, in the order Red Green Blue Alpha, with </font>
00034 <font class="comment"> Alpha really being a filler byte (0)</font>
00035 <font class="comment"> bgr32 = last but not least, 4 bytes per pixel, in the order Blue Green Red</font>
00036 <font class="comment"> Alpha, Alpha again a filler byte (0)</font>
00037 <font class="comment"> */</font>
00038
00039 <font class="comment">/* Functions in ccvt.S */</font>
00040 <font class="comment">/* 4:2:0 YUV interlaced to RGB/BGR */</font>
00041 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a0">ccvt_420i_bgr24</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *src, <font class="keywordtype">void</font> *dst);
00042 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a1">ccvt_420i_rgb24</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *src, <font class="keywordtype">void</font> *dst);
00043 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a2">ccvt_420i_bgr32</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *src, <font class="keywordtype">void</font> *dst);
00044 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a3">ccvt_420i_rgb32</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *src, <font class="keywordtype">void</font> *dst);
00045
00046 <font class="comment">/* 4:2:0 YUYV interlaced to RGB/BGR */</font>
00047 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a4">ccvt_yuyv_rgb32</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *src, <font class="keywordtype">void</font> *dst);
00048 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a5">ccvt_yuyv_bgr32</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *src, <font class="keywordtype">void</font> *dst);
00049
00050 <font class="comment">/* 4:2:0 YUV planar to RGB/BGR */</font>
00051 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a6">ccvt_420p_rgb32</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *srcy, <font class="keywordtype">void</font> *srcu, <font class="keywordtype">void</font> *srcv, <font class="keywordtype">void</font> *dst);
00052 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a7">ccvt_420p_bgr32</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *srcy, <font class="keywordtype">void</font> *srcu, <font class="keywordtype">void</font> *srcv, <font class="keywordtype">void</font> *dst);
00053
00054 <font class="comment">/* RGB/BGR to 4:2:0 YUV interlaced */</font>
00055
00056 <font class="comment">/* RGB/BGR to 4:2:0 YUV planar */</font>
00057 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a8">ccvt_rgb24_420p</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *src, <font class="keywordtype">void</font> *dsty, <font class="keywordtype">void</font> *dstu, <font class="keywordtype">void</font> *dstv);
00058 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a9">ccvt_bgr24_420p</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *src, <font class="keywordtype">void</font> *dsty, <font class="keywordtype">void</font> *dstu, <font class="keywordtype">void</font> *dstv);
00059
00060 <font class="comment">/* Go from 420i to other yuv formats */</font>
00061 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a10">ccvt_420i_420p</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *src, <font class="keywordtype">void</font> *dsty, <font class="keywordtype">void</font> *dstu, <font class="keywordtype">void</font> *dstv);
00062 <font class="keywordtype">void</font> <a class="code" href="ccvt_h.html#a11">ccvt_420i_yuyv</a>(<font class="keywordtype">int</font> width, <font class="keywordtype">int</font> height, <font class="keywordtype">void</font> *src, <font class="keywordtype">void</font> *dst);
00063
00064 <font class="preprocessor">#ifdef __cplusplus</font>
00065 <font class="preprocessor"></font>}
00066 <font class="preprocessor">#endif</font>
00067 <font class="preprocessor"></font>
00068 <font class="preprocessor">#endif</font>
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