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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* track.h - class track, which has a midi file track and its events</span>
<a name="l00002"></a>00002 <span class="comment"> This file is part of LibKMid 0.9.5</span>
<a name="l00003"></a>00003 <span class="comment"> Copyright (C) 1997,98,99,2000 Antonio Larrosa Jimenez</span>
<a name="l00004"></a>00004 <span class="comment"> LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libkmid.html</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment"> This library is free software; you can redistribute it and/or</span>
<a name="l00007"></a>00007 <span class="comment"> modify it under the terms of the GNU Library General Public</span>
<a name="l00008"></a>00008 <span class="comment"> License as published by the Free Software Foundation; either</span>
<a name="l00009"></a>00009 <span class="comment"> version 2 of the License, or (at your option) any later version.</span>
<a name="l00010"></a>00010 <span class="comment"> </span>
<a name="l00011"></a>00011 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
<a name="l00012"></a>00012 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00013"></a>00013 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00014"></a>00014 <span class="comment"> Library General Public License for more details.</span>
<a name="l00015"></a>00015 <span class="comment"> </span>
<a name="l00016"></a>00016 <span class="comment"> You should have received a copy of the GNU Library General Public License</span>
<a name="l00017"></a>00017 <span class="comment"> along with this library; see the file COPYING.LIB. If not, write to</span>
<a name="l00018"></a>00018 <span class="comment"> the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00019"></a>00019 <span class="comment"> Boston, MA 02110-1301, USA. </span>
<a name="l00020"></a>00020 <span class="comment"></span>
<a name="l00021"></a>00021 <span class="comment"> Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org></span>
<a name="l00022"></a>00022 <span class="comment"></span>
<a name="l00023"></a>00023 <span class="comment">***************************************************************************/</span>
<a name="l00024"></a>00024 <span class="preprocessor">#ifndef _TRACK_H</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#define _TRACK_H</span>
<a name="l00026"></a>00026 <span class="preprocessor"></span>
<a name="l00027"></a>00027 <span class="preprocessor">#include <stdio.h></span>
<a name="l00028"></a>00028 <span class="preprocessor">#include <libkmid/dattypes.h></span>
<a name="l00029"></a>00029
<a name="l00037"></a><a class="code" href="structMidiEvent.html">00037</a> <span class="keyword">struct </span><a class="code" href="structMidiEvent.html" title="An structure that represents a MIDI event.">MidiEvent</a>
<a name="l00038"></a>00038 {
<a name="l00044"></a><a class="code" href="structMidiEvent.html#a3560e3a72ebad44fb1e66497806cbff1">00044</a> uchar <a class="code" href="structMidiEvent.html#a3560e3a72ebad44fb1e66497806cbff1" title="MIDI Command.">command</a>;
<a name="l00045"></a>00045
<a name="l00049"></a><a class="code" href="structMidiEvent.html#a518e7efd3286ad81f7edbb6e1b908d9d">00049</a> uchar <a class="code" href="structMidiEvent.html#a518e7efd3286ad81f7edbb6e1b908d9d" title="Channel.">chn</a>;
<a name="l00050"></a>00050
<a name="l00054"></a><a class="code" href="structMidiEvent.html#a82a0ff0d4ff1972cf946bc959b0d15c1">00054</a> uchar <a class="code" href="structMidiEvent.html#a82a0ff0d4ff1972cf946bc959b0d15c1" title="Note.">note</a>;
<a name="l00055"></a>00055
<a name="l00059"></a><a class="code" href="structMidiEvent.html#ababcd82f5b29a5acfecc82704066af9a">00059</a> uchar <a class="code" href="structMidiEvent.html#ababcd82f5b29a5acfecc82704066af9a" title="Velocity.">vel</a>;
<a name="l00060"></a>00060
<a name="l00064"></a><a class="code" href="structMidiEvent.html#aacb68e9fb8dbef8f788fc4be25c426ee">00064</a> uchar <a class="code" href="structMidiEvent.html#aacb68e9fb8dbef8f788fc4be25c426ee" title="Patch (if command was a change patch command)">patch</a>;
<a name="l00065"></a>00065
<a name="l00069"></a><a class="code" href="structMidiEvent.html#a44e56b60ddbf21510abaf4ebc8156bf8">00069</a> uchar <a class="code" href="structMidiEvent.html#a44e56b60ddbf21510abaf4ebc8156bf8" title="Patch (if command was a controller command)">ctl</a>;
<a name="l00070"></a>00070
<a name="l00074"></a><a class="code" href="structMidiEvent.html#ab99f7ad7a7f2cc82e2e803dff701ef09">00074</a> uchar <a class="code" href="structMidiEvent.html#ab99f7ad7a7f2cc82e2e803dff701ef09" title="Data 1.">d1</a>;
<a name="l00075"></a>00075
<a name="l00079"></a><a class="code" href="structMidiEvent.html#a96954680a5ce3d5fc974a0b1f97109da">00079</a> uchar <a class="code" href="structMidiEvent.html#a96954680a5ce3d5fc974a0b1f97109da" title="Data 2.">d2</a>;
<a name="l00080"></a>00080
<a name="l00084"></a><a class="code" href="structMidiEvent.html#a8433e0277480964f084c2e380f417ac7">00084</a> uchar <a class="code" href="structMidiEvent.html#a8433e0277480964f084c2e380f417ac7" title="Data 3.">d3</a>;
<a name="l00085"></a>00085
<a name="l00089"></a><a class="code" href="structMidiEvent.html#acea39e7848061bc5ab5946038a0f87d6">00089</a> uchar <a class="code" href="structMidiEvent.html#acea39e7848061bc5ab5946038a0f87d6" title="Data 4.">d4</a>;
<a name="l00090"></a>00090
<a name="l00094"></a><a class="code" href="structMidiEvent.html#a2af47108ac68f15d6405b087e0dcd802">00094</a> uchar <a class="code" href="structMidiEvent.html#a2af47108ac68f15d6405b087e0dcd802" title="Data 5.">d5</a>;
<a name="l00095"></a>00095
<a name="l00099"></a><a class="code" href="structMidiEvent.html#a7ebfa5416c766c3c463ca9abca42d040">00099</a> uchar <a class="code" href="structMidiEvent.html#a7ebfa5416c766c3c463ca9abca42d040" title="Data 6.">d6</a>;
<a name="l00100"></a>00100
<a name="l00104"></a><a class="code" href="structMidiEvent.html#a2256886f9780c9fe3bcb60e368b8c3ec">00104</a> ulong <a class="code" href="structMidiEvent.html#a2256886f9780c9fe3bcb60e368b8c3ec" title="Length of the generic data variable.">length</a>;
<a name="l00105"></a>00105
<a name="l00109"></a><a class="code" href="structMidiEvent.html#ad3534e436eb4129a153d0f6b1859b933">00109</a> uchar *<a class="code" href="structMidiEvent.html#ad3534e436eb4129a153d0f6b1859b933" title="The data for commands like text, sysex, etc.">data</a>;
<a name="l00110"></a>00110
<a name="l00111"></a>00111 };
<a name="l00112"></a>00112
<a name="l00126"></a><a class="code" href="classMidiTrack.html">00126</a> <span class="keyword">class </span><a class="code" href="classMidiTrack.html" title="Stores a MIDI track.">MidiTrack</a>
<a name="l00127"></a>00127 {
<a name="l00128"></a>00128 <span class="keyword">private</span>:
<a name="l00129"></a>00129 <span class="keyword">class </span>MidiTrackPrivate;
<a name="l00130"></a>00130 MidiTrackPrivate *d;
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keywordtype">int</span> id;
<a name="l00133"></a>00133
<a name="l00134"></a>00134 ulong size;
<a name="l00135"></a>00135 uchar *data;
<a name="l00136"></a>00136 uchar *ptrdata;
<a name="l00137"></a>00137
<a name="l00138"></a>00138 <span class="keywordtype">bool</span> note[16][128]; <span class="comment">// Notes that are set on or off by this track</span>
<a name="l00139"></a>00139 ulong current_ticks; <span class="comment">// Total number of ticks since beginning of song</span>
<a name="l00140"></a>00140 ulong delta_ticks; <span class="comment">// Delta ticks from previous event to next event</span>
<a name="l00141"></a>00141 ulong wait_ticks; <span class="comment">// Wait ticks from previous event in other track</span>
<a name="l00142"></a>00142 <span class="comment">// to next event in this track</span>
<a name="l00143"></a>00143
<a name="l00144"></a>00144 ulong currentpos; <span class="comment">// Some songs don't have a endoftrack event, so</span>
<a name="l00145"></a>00145 <span class="comment">// we have to see when currentpos > size</span>
<a name="l00146"></a>00146 <span class="keywordtype">int</span> endoftrack;
<a name="l00147"></a>00147
<a name="l00148"></a>00148 ulong readVariableLengthValue(<span class="keywordtype">void</span>);
<a name="l00149"></a>00149
<a name="l00150"></a>00150 uchar lastcommand; <span class="comment">// This is to run light without overbyte :-)</span>
<a name="l00151"></a>00151
<a name="l00152"></a>00152
<a name="l00153"></a>00153 <span class="keywordtype">double</span> current_time; <span class="comment">// in ms.</span>
<a name="l00154"></a>00154 <span class="keywordtype">double</span> time_at_previous_tempochange; <span class="comment">// in ms.</span>
<a name="l00155"></a>00155 <span class="keywordtype">double</span> ticks_from_previous_tempochange; <span class="comment">// in ticks </span>
<a name="l00156"></a>00156 <span class="comment">// double time_to_next_event; // in ms.</span>
<a name="l00157"></a>00157 <span class="keywordtype">double</span> time_at_next_event; <span class="comment">// in ms.</span>
<a name="l00158"></a>00158 <span class="keywordtype">int</span> tPCN;
<a name="l00159"></a>00159 ulong tempo;
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="keywordtype">int</span> power2to(<span class="keywordtype">int</span> i);
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="keyword">public</span>:
<a name="l00172"></a>00172 <a class="code" href="classMidiTrack.html#a3677511da0dd4c08a0e3a70cda570773" title="Constructor.">MidiTrack</a>(FILE *file,<span class="keywordtype">int</span> tpcn,<span class="keywordtype">int</span> Id);
<a name="l00173"></a>00173
<a name="l00177"></a>00177 <a class="code" href="classMidiTrack.html#aaa9f15c2fe33ed0f44e0a78b2d1f0bf4" title="Destructor.">~MidiTrack</a>();
<a name="l00178"></a>00178
<a name="l00186"></a>00186 <span class="keywordtype">int</span> <a class="code" href="classMidiTrack.html#ac35021f7a4b41cee4324e5cc9d23d052" title="Makes the iterator advance the given number of ticks.">ticksPassed</a> (ulong ticks);
<a name="l00187"></a>00187
<a name="l00195"></a>00195 <span class="keywordtype">int</span> <a class="code" href="classMidiTrack.html#aec31e2a8a91224f95d9157f0ebbd2082" title="Makes the iterator advance the given number of milliseconds.">msPassed</a> (ulong ms);
<a name="l00196"></a>00196
<a name="l00200"></a>00200 <span class="keywordtype">int</span> <a class="code" href="classMidiTrack.html#a3853ed58cfeddeb48a3ec9c00875d984" title="Returns the current millisecond which the iterator is at.">currentMs</a> (<span class="keywordtype">double</span> ms);
<a name="l00201"></a>00201
<a name="l00205"></a><a class="code" href="classMidiTrack.html#a300ce66ac5591239483513b613ab6e9f">00205</a> ulong <a class="code" href="classMidiTrack.html#a300ce66ac5591239483513b613ab6e9f" title="Returns the number of ticks left for the next event.">waitTicks</a> (<span class="keywordtype">void</span>) { <span class="keywordflow">return</span> wait_ticks; }
<a name="l00206"></a>00206
<a name="l00207"></a>00207 <span class="comment">// ulong waitMs (void) {return time_to_next_event;};</span>
<a name="l00208"></a>00208
<a name="l00212"></a><a class="code" href="classMidiTrack.html#afae662342050ef7a5621af73a45dffb5">00212</a> <span class="keywordtype">double</span> <a class="code" href="classMidiTrack.html#afae662342050ef7a5621af73a45dffb5" title="Returns the absolute number of milliseconds of the next event.">absMsOfNextEvent</a> (<span class="keywordtype">void</span>) { <span class="keywordflow">return</span> time_at_next_event; }
<a name="l00213"></a>00213
<a name="l00217"></a>00217 <span class="keywordtype">void</span> <a class="code" href="classMidiTrack.html#ae299d7d5d937e69dda16c36f9ff9498a" title="Change the tempo of the song.">changeTempo</a>(ulong t);
<a name="l00218"></a>00218
<a name="l00223"></a>00223 <span class="keywordtype">void</span> <a class="code" href="classMidiTrack.html#a0116697d2b63b1369b980dcbb12ce9b4" title="Reads the event at the iterator position, and puts it on the structure pointed to by ev...">readEvent</a>(<a class="code" href="structMidiEvent.html" title="An structure that represents a MIDI event.">MidiEvent</a> *ev);
<a name="l00224"></a>00224
<a name="l00228"></a>00228 <span class="keywordtype">void</span> <a class="code" href="classMidiTrack.html#a1066b85a0a6835a7243ff07a6362a931" title="Initializes the iterator.">init</a>(<span class="keywordtype">void</span>);
<a name="l00229"></a>00229
<a name="l00233"></a>00233 <span class="keywordtype">void</span> <a class="code" href="classMidiTrack.html#a01cd05333977c42eaf60bf53860e0078" title="Clears the internal variables.">clear</a>(<span class="keywordtype">void</span>);
<a name="l00234"></a>00234
<a name="l00235"></a>00235 };
<a name="l00236"></a>00236
<a name="l00237"></a>00237 <span class="preprocessor">#endif</span>
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