# libkmid Library API Documentation

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# voiceman.h

    00001 /*  voiceman.h - The VoiceManager class handles a set of voices for synths
    00002     This file is part of LibKMid 0.9.5
    00003     Copyright (C) 1997,98,99,2000  Antonio Larrosa Jimenez
    00004     LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libkmid.html
    00005
    00006     This library is free software; you can redistribute it and/or
    00007     modify it under the terms of the GNU Library General Public
    00008     License as published by the Free Software Foundation; either
    00009     version 2 of the License, or (at your option) any later version.
    00010
    00011     This library is distributed in the hope that it will be useful,
    00012     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00014     Library General Public License for more details.
    00015
    00016     You should have received a copy of the GNU Library General Public License
    00017     along with this library; see the file COPYING.LIB.  If not, write to
    00018     the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00019     Boston, MA 02111-1307, USA.
    00020
    00021     Send comments and bug fixes to Antonio Larrosa <larrosa@kde.org>
    00022
    00023 ***************************************************************************/
    00024 #ifndef _VOICEMAN_H
    00025 #define _VOICEMAN_H
    00026
    00035 class VoiceManager
    00036 {
    00037   private:
    00038     class VoiceManagerPrivate;
    00039     VoiceManagerPrivate *d;
    00040
    00044     int nvoices;
    00045
    00049     struct voice
    00050     {
    00051       int     id;
    00052       int       channel;
    00053       int       note;
    00054       int       used;
    00055
    00056       struct voice *prev;
    00057       struct voice *next;
    00058     };
    00059
    00064     voice *FirstVoice;
    00065
    00069     voice *LastVoice;
    00070
    00075     voice *LastnotusedVoice;
    00076
    00080     voice **VoiceList;
    00081
    00086     voice *searcher;
    00087
    00092     voice *searcher_aid;
    00093
    00094   public:
    00098     VoiceManager(int totalvoices);
    00099
    00103     ~VoiceManager();
    00104
    00112     int allocateVoice(int chn,int key);
    00113
    00119     void deallocateVoice(int id);
    00120
    00127     void initSearch(void);
    00128
    00138     int search(int chn);
    00139     //returns -1 if channel chn is not currently used
    00140     // Continue searching for more voices which
    00141     // use the channel chn
    00142
    00149     int search(int chn,int note);
    00150
    00154     int channel(int v) {return VoiceList[v]->channel;};
    00155
    00159     int note(int v) {return VoiceList[v]->note;};
    00160
    00164     int used(int v) {return VoiceList[v]->used;};
    00165
    00169     void clearLists(void);
    00170 };
    00171
    00172 #endif

This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
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