1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> 2<head> 3<META http-equiv="Content-Type" content="text/html; charset=windows-1252"> 4<title>SND_SetTrackModSpeed</title> 5<link rel="stylesheet" href="../css/nitro.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.65.1"> 7</head> 8<body> 9<div class="refentry" lang="ja"><a name="IDAFLWT"></a><div class="titlepage"> 10<div></div> 11<div></div> 12</div> 13<h1>SND_SetTrackModSpeed <IMG src="../image/NTR.gif" width="24" height="12" border="0" align=middle><IMG src="../image/TWL.gif" width="24" height="12" border="0" align=middle></h1> 14<h2>Syntax</h2> 15<dl> 16<dd><pre class="funcsynopsisinfo"><code>#include <nitro/snd.h></code></pre></dd> 17<dd><pre class="funcprototype"><code class="funcprototype">void SND_SetTrackModSpeed( 18 int <var>playerNo</var>, 19 u32 <var>trackBitMask</var>, 20 int <var>speed</var> );</code><br></pre></dd> 21</dl> 22<div class="refsection" lang="ja"><a name="IDACNWT"></a> 23 <h2>Arguments</h2> 24 25 <div class="variablelist"> 26<table border="0"> 27<col align="left" valign="top"> 28<tbody> 29<tr> 30<td><em><strong><code>playerNo</code></strong></em></td> 31<td>The player number. Takes a value between 0 and 15.</td> 32</tr> 33<tr> 34<td><em><strong><code>trackBitMask</code></strong></em></td> 35<td>This is the track bit mask. It designates which track to use.</td> 36</tr> 37<tr> 38<td><em><strong><code>speed</code></strong></em></td> 39<td>The modulation speed. Takes a value between 0 and 255.</td> 40</tr> 41</tbody> 42</table> 43</div> 44 45 </div> 46<div class="refsection" lang="ja"><a name="IDA5NWT"></a> 47 <h2>Return Values</h2> 48 49 <p>None.</p> 50 </div> 51<div class="refsection" lang="ja"><a name="IDAGOWT"></a> 52 <h2>Description</h2> 53 <p> 54Changes the modulation speed of the tracks of the sequence being played by the Player specified by <code>playerNo</code>. 55</p> 56 <p> 57The track bit mask, <em><strong><code>trackBitMask</code></strong></em>, designates which track to use. Each bit expresses a track in descending order track 0 as the lowest bit. Operations are performed only on tracks with active bits. 58</p> 59 <p> 60The default value for the modulation speed <code>speed</code> is 16, which corresponds to approximately 6.4 Hz. When the value doubles in size, the frequency also doubles. 61</p> 62 <div class="note"> 63<h3 class="title">Note</h3> 64<p> 65If a modulation speed value is already set inside the sequence data, the value set later is the one that is valid. 66</p> 67<p> 68This function is an ARM7 reserved function. After this function is called, its processing will occur only after the command is issued with the <tt class="function"><a href="SND_FlushCommand.html">SND_FlushCommand</a></tt> function. 69</p> 70<p> 71If program execution must be synchronized with process completion, first use the <tt class="function"><a href="SND_GetCurrentCommandTag.html">SND_GetCurrentCommandTag</a></tt> function to obtain the command tag immediately after calling this function. Then, after the command is issued, use the command tag and call either the <tt class="function"><a href="SND_IsFinishedCommandTag.html">SND_IsFinishedCommandTag</a></tt> or <tt class="function"><a href="SND_WaitForCommandProc.html">SND_WaitForCommandProc</a></tt> function to confirm that processing has finished or to wait for it to complete. 72</p> 73</div> 74 </div> 75<h2>See Also</h2> 76<p><code><a href="SND_FlushCommand.html">SND_FlushCommand</a>, <a href="SND_GetCurrentCommandTag.html">SND_GetCurrentCommandTag</a>, <a href="SND_IsFinishedCommandTag.html">SND_IsFinishedCommandTag</a>, <a href="SND_WaitForCommandProc.html">SND_WaitForCommandProc</a></code></p> 77<h2>Revision History</h2> 78<p> 792005/02/17 Added a note about ARM7 command processing. <br>2004/07/01 Initial version. 80</p> 81</div> 82<hr><p>CONFIDENTIAL</p></body> 83</html> 84
