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8<TITLE>PSMTXROMultVecArray</TITLE>
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11<H1>PSMTXROMultVecArray</H1>
12
13<H2>Syntax</H2>
14<dl><dd><pre class="construction">
15#include &lt;revolution/mtx.h&gt;
16
17void PSMTXROMultVecArray (
18    const ROMtx  m,
19    const VecPtr srcBase,
20          VecPtr dstBase,
21          u32    count );
22</pre></dd></dl>
23
24<H2>Arguments</H2>
25<TABLE class="arguments" border="1" >
26  <TBODY>
27    <TR>
28<TH>m</TH>
29<TD>Source matrix to multiply. <code><em><strong>m</strong></em></code> is unaffected by this function.&nbsp;<code><em><strong>m</strong></em></code> may be either a <A href="../structures/ROMtx_ROMtxPtr.html"><CODE>ROMtx</CODE></A> or a <A href="../structures/ROMtx_ROMtxPtr.html"><CODE>ROMtxPtr</CODE></A>.</TD>
30    </TR>
31    <TR>
32<TH>srcBase</TH>
33<TD>Pointer to the first <A href="../structures/Vec_VecPtr.html"><CODE>Vec</CODE></A> of a source vector array.&nbsp;<br><code><em><strong>srcBase</strong></em></code> may be either a <A href="../structures/Vec_VecPtr.html"><CODE>VecPtr</CODE></A> or a <A href="../structures/Point3d_Point3dPtr.html"><CODE>Point3dPtr</CODE></A>.</TD>
34    </TR>
35    <TR>
36<TH>dstBase</TH>
37<TD>Pointer to the first <A href="../structures/Vec_VecPtr.html"><CODE>Vec</CODE></A> of a destination vector array.&nbsp;<br> <code><em><strong>dstBase</strong></em></code> may be either a <A href="../structures/Vec_VecPtr.html"><CODE>VecPtr</CODE></A> or a <A href="../structures/Point3d_Point3dPtr.html"><CODE>Point3dPtr</CODE></A>.</TD>
38    </TR>
39    <TR>
40<TH>count</TH>
41<TD>Number of contiguous array elements to multiply. Must be larger than 1. OK if <SPAN class="argument">srcBase</SPAN> = <SPAN class="argument">dstBase</SPAN>.</TD>
42    </TR>
43  </TBODY>
44</TABLE>
45
46<H2>Return Values</H2>
47<P>None.</P>
48
49<H2>Description</H2>
50<P><A href="../general/MTXMultVecArray.html"><CODE>PSMTXMultVecArray</CODE></A> has been implemented as a high-performance function by using a column-major matrix with columns switched for rows. If <SPAN class="argument">count</SPAN>=70, the performance is approximately 9.586 to 9.814 cycles/vertex.</P>
51<P>The input matrix must already be put in column-major format using <A href="PSMTXReorder.html"><CODE>PSMTXReorder</CODE></A>.</P>
52<P><SPAN class="argument">count</SPAN> must be greater than two.</P>
53
54<H2>See Also</H2>
55<P class="reference">
56<A href="../structures/ROMtx_ROMtxPtr.html">ROMtx, ROMtxPtr</A>,
57<A href="../structures/Vec_VecPtr.html">Vec, VecPtr</A>,
58<A href="PSMTXReorder.html">PSMTXReorder</A>
59</P>
60
61<H2>Revision History</H2>
62<P>
632006/03/01 Initial version.<br>
64</P>
65
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