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+/**************************************************************************
+
+ midiout.cpp - class midiOut which handles external midi devices
+ This file is part of LibKMid 0.9.5
+ Copyright (C) 1997,98,99,2000 Antonio Larrosa Jimenez
+ LibKMid's homepage : http://www.arrakis.es/~rlarrosa/libtdemid.html
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+ Send comments and bug fixes to Antonio Larrosa <[email protected]>
+
+***************************************************************************/
+#include "midiout.h"
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include "sndcard.h"
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/param.h>
+#include "midispec.h"
+#include "alsaout.h"
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <sys/ioctl.h>
+
+SEQ_USE_EXTBUF();
+
+MidiOut::MidiOut(int d)
+{
+ seqfd = -1;
+ devicetype=KMID_EXTERNAL_MIDI;
+ device= d;
+ volumepercentage=100;
+ map=new MidiMapper(NULL);
+ if (map==NULL) { printfdebug("ERROR : midiOut : Map is NULL\n"); return; };
+ _ok=1;
+}
+
+MidiOut::~MidiOut()
+{
+ delete map;
+ closeDev();
+}
+
+void MidiOut::openDev (int sqfd)
+{
+#ifdef HAVE_OSS_SUPPORT
+ _ok=1;
+ seqfd=sqfd;
+ if (seqfd==-1)
+ {
+ printfdebug("ERROR: Could not open /dev/sequencer\n");
+ _ok=0;
+ return;
+ }
+#endif
+}
+
+void MidiOut::closeDev (void)
+{
+ if (!ok()) return;
+// if (deviceType()!=KMID_ALSA) allNotesOff();
+ SEQ_STOP_TIMER();
+ SEQ_DUMPBUF();
+ seqfd=-1;
+}
+
+void MidiOut::initDev (void)
+{
+#ifdef HAVE_OSS_SUPPORT
+ int chn;
+ if (!ok()) return;
+ uchar gm_reset[5]={0x7e, 0x7f, 0x09, 0x01, 0xf7};
+ sysex(gm_reset, sizeof(gm_reset));
+ for (chn=0;chn<16;chn++)
+ {
+ chnmute[chn]=0;
+ chnPatchChange(chn,0);
+ chnPressure(chn,127);
+ chnPitchBender(chn, 0x00, 0x40);
+ chnController(chn, CTL_MAIN_VOLUME,110*volumepercentage);
+ chnController(chn, CTL_EXT_EFF_DEPTH, 0);
+ chnController(chn, CTL_CHORUS_DEPTH, 0);
+ chnController(chn, 0x4a, 127);
+ }
+#endif
+}
+
+void MidiOut::setMidiMapper(MidiMapper *_map)
+{
+ delete map;
+ map=_map;
+}
+
+void MidiOut::noteOn (uchar chn, uchar note, uchar vel)
+{
+ if (vel==0)
+ {
+ noteOff(chn,note,vel);
+ }
+ else
+ {
+ SEQ_MIDIOUT(device, MIDI_NOTEON + map->channel(chn));
+ SEQ_MIDIOUT(device, map->key(chn,chnpatch[chn],note));
+ SEQ_MIDIOUT(device, vel);
+ }
+#ifdef MIDIOUTDEBUG
+ printfdebug("Note ON >\t chn : %d\tnote : %d\tvel: %d\n",chn,note,vel);
+#endif
+}
+
+void MidiOut::noteOff (uchar chn, uchar note, uchar vel)
+{
+ SEQ_MIDIOUT(device, MIDI_NOTEOFF + map->channel(chn));
+ SEQ_MIDIOUT(device, map->key(chn,chnpatch[chn],note));
+ SEQ_MIDIOUT(device, vel);
+#ifdef MIDIOUTDEBUG
+ printfdebug("Note OFF >\t chn : %d\tnote : %d\tvel: %d\n",chn,note,vel);
+#endif
+}
+
+void MidiOut::keyPressure (uchar chn, uchar note, uchar vel)
+{
+ SEQ_MIDIOUT(device, MIDI_KEY_PRESSURE + map->channel(chn));
+ SEQ_MIDIOUT(device, map->key(chn,chnpatch[chn],note));
+ SEQ_MIDIOUT(device, vel);
+}
+
+void MidiOut::chnPatchChange (uchar chn, uchar patch)
+{
+#ifdef MIDIOUTDEBUG
+ printfdebug("PATCHCHANGE [%d->%d] %d -> %d\n",
+ chn,map->channel(chn),patch,map->patch(chn,patch));
+#endif
+ SEQ_MIDIOUT(device, MIDI_PGM_CHANGE + map->channel(chn));
+ SEQ_MIDIOUT(device, map->patch(chn,patch));
+ chnpatch[chn]=patch;
+}
+
+void MidiOut::chnPressure (uchar chn, uchar vel)
+{
+ SEQ_MIDIOUT(device, MIDI_CHN_PRESSURE + map->channel(chn));
+ SEQ_MIDIOUT(device, vel);
+
+ chnpressure[chn]=vel;
+}
+
+void MidiOut::chnPitchBender(uchar chn,uchar lsb, uchar msb)
+{
+ SEQ_MIDIOUT(device, MIDI_PITCH_BEND + map->channel(chn));
+ /*
+#ifdef AT_HOME
+ short pbs=((short)msb<<7) | (lsb & 0x7F);
+ pbs=pbs-0x2000;
+ short pbs2=(((long)pbs*672)/4096);
+ printfdebug("Pitch Bender (%d): %d -> %d \n",chn,pbs,pbs2);
+ pbs2=pbs2+0x2000;
+ lsb=pbs2 & 0x7F;
+ msb=(pbs2 >> 7)&0x7F;
+#endif
+ */
+ map->pitchBender(chn,lsb,msb);
+ SEQ_MIDIOUT(device, lsb);
+ SEQ_MIDIOUT(device, msb);
+ chnbender[chn]=(msb << 8) | (lsb & 0xFF);
+}
+
+void MidiOut::chnController (uchar chn, uchar ctl, uchar v)
+{
+ SEQ_MIDIOUT(device, MIDI_CTL_CHANGE + map->channel(chn));
+#ifdef AT_HOME
+ if (ctl==11) ctl=7;
+#endif
+ map->controller(chn,ctl,v);
+ if ((ctl==11)||(ctl==7))
+ {
+ v=(v*volumepercentage)/100;
+ if (v>127) v=127;
+ }
+
+ SEQ_MIDIOUT(device, ctl);
+ SEQ_MIDIOUT(device, v);
+
+ chncontroller[chn][ctl]=v;
+}
+
+void MidiOut::sysex(uchar *data, ulong size)
+{
+ ulong i=0;
+ SEQ_MIDIOUT(device, MIDI_SYSTEM_PREFIX);
+ while (i<size)
+ {
+ SEQ_MIDIOUT(device, *data);
+ data++;
+ i++;
+ }
+#ifdef MIDIOUTDEBUG
+ printfdebug("sysex\n");
+#endif
+}
+
+void MidiOut::allNotesOff (void)
+{
+ for (int i=0; i<16; i++)
+ {
+ chnController(i, 0x78, 0);
+ chnController(i, 0x79, 0);
+ };
+ sync(1);
+}
+
+void MidiOut::channelSilence (uchar chn)
+{
+ uchar i;
+ for ( i=0; i<127; i++)
+ {
+ noteOff(chn,i,0);
+ };
+ sync();
+}
+
+void MidiOut::channelMute(uchar chn, int a)
+{
+ if (a==1)
+ {
+ chnmute[chn]=a;
+ channelSilence(chn);
+ }
+ else if (a==0)
+ {
+ chnmute[chn]=a;
+ }
+ /* else ignore the call to this function */
+}
+
+void MidiOut::seqbuf_dump (void)
+{
+#ifdef HAVE_OSS_SUPPORT
+ if (_seqbufptr && seqfd!=-1 && seqfd!=0)
+ if (write (seqfd, _seqbuf, _seqbufptr) == -1)
+ {
+ printfdebug("Error writing to /dev/sequencer in MidiOut::seq_buf_dump\n");
+ perror ("write /dev/sequencer in seqBufDump\n");
+ exit (-1);
+ }
+ _seqbufptr = 0;
+#endif
+}
+
+void MidiOut::seqbuf_clean(void)
+{
+#ifdef HAVE_OSS_SUPPORT
+ _seqbufptr=0;
+#endif
+}
+
+const char *MidiOut::midiMapFilename(void)
+{
+ return (map!=NULL) ? map->filename() : "";
+}
+
+const char * MidiOut::deviceName(void) const
+{
+ switch (deviceType())
+ {
+ case (KMID_EXTERNAL_MIDI) : return "External Midi";
+ case (KMID_SYNTH) : return "Synth";
+ case (KMID_FM) : return "FM";
+ case (KMID_GUS) : return "GUS";
+ case (KMID_AWE) : return "AWE";
+ case (KMID_ALSA) : return reinterpret_cast<const AlsaOut *>(this)->deviceName();
+ }
+ return "Unknown";
+}
+
+void MidiOut::sync(int i)
+{
+ if (deviceType()==KMID_ALSA) { // XXX : sync should be virtual after next bic
+ reinterpret_cast<AlsaOut *>(this)->sync(i);
+ return;
+ }
+ SEQ_DUMPBUF();
+}
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