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/****************************************************************************************/
/* */
/* This program is free software; you can redistribute it and/or modify it under the */
/* terms of the GNU General Public License as published by the Free Software */
/* Foundation; either version 2 of the License, or (at your option) any later version. */
/* */
/* This program 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 General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public License along with this */
/* program; (See "COPYING"). If not, If not, see <http://www.gnu.org/licenses/>. */
/* */
/*--------------------------------------------------------------------------------------*/
/* */
/* Copyright Joerg Anders, TU Chemnitz, Fakultaet fuer Informatik, GERMANY */
/* ja@informatik.tu-chemnitz.de */
/* */
/* */
/****************************************************************************************/
#include "midirecorder.h"
#include "idiotseditor.h"
#include "resource.h"
#include <string.h>
NedMidiRecorder::NedMidiRecorder(int num, int denom, int key, int midi_pgm,
int tempo_inverse, int metro_volume, bool triplet, bool f_piano, bool dnt_split) :
NedImporter(), m_error_string(NULL), m_current_time(0), m_last_event_time(0), m_metronom_running(false), m_record_started(false),
m_num(num), m_denom(denom),
m_midi_pgm(midi_pgm), m_tempo_inverse(tempo_inverse), m_metro_volume(metro_volume), m_triplet_recognition(triplet)
{
m_intervall_long = (unsigned long long) (100000000.0 * 4.0 / (double) tempo_inverse / (double) denom );
m_metronom_intervall.tv_sec = (unsigned int) (m_intervall_long / 100000);
m_metronom_intervall.tv_usec = (unsigned int) ((m_intervall_long % 100000) * 1000);
m_idiots_editor = new NedIdiotsEditor(20, 20, f_piano, false, dnt_split);
m_idiots_editor->addTimeSigChange(0, num, denom);
m_idiots_editor->addKeySig(0, 0, key);
for (int i = 0; i < 16; m_current_midi_instrument[i++] = 0);
}
void NedMidiRecorder::startMetronom() {
int pitch;
snd_seq_event_t ev;
struct timeval now;
if (NedResource::isPlaying()) return;
if (NedResource::getMidiInSequ() == NULL || NedResource::getMidiOutSequ() == NULL) return;
snd_seq_ev_clear(&ev);
ev.type = SND_SEQ_EVENT_PGMCHANGE;
ev.data.control.channel = 0;
ev.data.control.value = m_midi_pgm;
snd_seq_ev_set_subs(&ev);
snd_seq_ev_set_direct(&ev);
snd_seq_event_output_direct(NedResource::getMidiOutSequ(), &ev);
m_number_of_midi_poll_fds = snd_seq_poll_descriptors_count(NedResource::getMidiInSequ(), POLLIN);
NedMidiRecorder::m_metronom_count = 1;
m_metronom_running = true;
m_record_started = false;
pitch = 48;
gettimeofday(&now, NULL);
timeradd(&now, &m_metronom_intervall, &m_next_metronome_tick);
NedResource::playImmediately(9, 1, 1, &pitch, m_metro_volume);
g_timeout_add(4, OnMetronomTick, this);
}
gboolean NedMidiRecorder::OnMetronomTick(void *data) {
unsigned long long midi_time;
struct timeval now, diff;
int pitch = -1;
NedMidiRecorder *recorder = (NedMidiRecorder *) data;
if (!recorder->m_metronom_running) return FALSE;
gettimeofday(&now, NULL);
if (timercmp(&now, &(recorder->m_next_metronome_tick), >=)) {
pitch = (recorder->m_metronom_count++ % recorder->m_num) ? 40 : 48;
//NedResource::playImmediately(9, 1, 1, &pitch, recorder->m_metro_volume);
if (pitch == 48 && !recorder->m_record_started) {
recorder->m_record_started = true;
recorder->m_metronom_count = 1;
}
gettimeofday(&(recorder->m_last_recorder_metronom_tick), NULL);
timeradd(&(recorder->m_last_recorder_metronom_tick), &(recorder->m_metronom_intervall), &(recorder->m_next_metronome_tick));
}
if (recorder->m_record_started) {
struct pollfd *pfd = (struct pollfd *)alloca(recorder->m_number_of_midi_poll_fds * sizeof(struct pollfd));
snd_seq_poll_descriptors(NedResource::getMidiInSequ(), pfd, recorder->m_number_of_midi_poll_fds, POLLIN);
if (poll(pfd, recorder->m_number_of_midi_poll_fds, 0) > 0) {
gettimeofday(&now, NULL);
timersub(&now, &(recorder->m_last_recorder_metronom_tick), &diff);
midi_time = recorder->m_metronom_count - 1;
midi_time *= (unsigned long long) recorder->m_metronom_intervall.tv_sec * (unsigned long long) 1000 + (unsigned long long) recorder->m_metronom_intervall.tv_usec / (unsigned long long) 1000;
midi_time += (unsigned long long) diff.tv_sec * (unsigned long long) 1000 + (unsigned long long) diff.tv_usec / (unsigned long long) 1000;
midi_time *= 4 * NOTE_4;
midi_time /= recorder->m_denom;
midi_time /= recorder->m_intervall_long;
recorder->process_midi_event(midi_time);
}
}
if (pitch >= 0) {
NedResource::playImmediately(9, 1, 1, &pitch, recorder->m_metro_volume);
}
g_timeout_add(4, OnMetronomTick, data);
return FALSE;
}
void NedMidiRecorder::stopMetronom() {
m_idiots_editor->changeChannelAndPgm(0, 0, m_midi_pgm);
m_metronom_running = false;
m_record_started = false;
}
void NedMidiRecorder::process_midi_event(unsigned long long midi_time) {
snd_seq_event_t *ev;
do {
snd_seq_event_input(NedResource::getMidiInSequ(), &ev);
switch (ev->type) {
#ifdef UUU
case SND_SEQ_EVENT_CONTROLLER:
fprintf(stderr, "Control event on Channel %2d: %5d \n",
ev->data.control.channel, ev->data.control.value);
break;
case SND_SEQ_EVENT_PITCHBEND:
fprintf(stderr, "Pitchbender event on Channel %2d: %5d \n",
ev->data.control.channel, ev->data.control.value);
break;
#endif
case SND_SEQ_EVENT_NOTEON:
#ifdef UUU
fprintf(stderr, "Note On event on Channel %2d: %5d \n",
ev->data.control.channel, ev->data.note.note);
#endif
#ifdef VVV
printf("time = %llu(%llu, %llu): Note On event on Channel %2d: %5d, volume: %d\n",
LAUS(midi_time),
ev->data.control.channel, ev->data.note.note, ev->data.note.velocity);
#endif
if (ev->data.note.velocity > 0) {
m_idiots_editor->addNote(ev->data.note.note, 64, midi_time, 0, 0);
}
else {
m_idiots_editor->closeNote(ev->data.note.note, midi_time, 0, 0);
}
if (NedResource::getMidiOutSequ()) {
ev->data.control.channel = 0;
snd_seq_ev_set_subs(ev);
snd_seq_ev_set_direct(ev);
snd_seq_event_output_direct(NedResource::getMidiOutSequ(), ev);
}
m_last_event_time = midi_time;
break;
case SND_SEQ_EVENT_NOTEOFF:
#ifdef UUU
fprintf(stderr, "Note Off event on Channel %2d: %5d \n",
ev->data.control.channel, ev->data.note.note);
#endif
#ifdef VVV
printf("time = %llu(%llu, %llu): Note Off event on Channel %2d: %5d\n",
LAUS(midi_time),
ev->data.control.channel, ev->data.note.note);
#endif
m_idiots_editor->closeNote(ev->data.note.note, midi_time, 0, 0);
if (NedResource::getMidiOutSequ()) {
ev->data.control.channel = 0;
snd_seq_ev_set_subs(ev);
snd_seq_ev_set_direct(ev);
snd_seq_event_output_direct(NedResource::getMidiOutSequ(), ev);
}
m_last_event_time = midi_time;
break;
}
snd_seq_free_event(ev);
}
while (snd_seq_event_input_pending(NedResource::getMidiInSequ(), 0) > 0);
}
bool NedMidiRecorder::import() {
int i, j;
char *cptr;
m_idiots_editor->setLastTime(m_last_event_time);
m_idiots_editor->computeTimeSigMeasureNumbers(m_main_window);
m_idiots_editor->computeTempo();
m_idiots_editor->computeVolumes();
m_idiots_editor->snapStartOfNotes();
if (m_with_triplets) {
m_idiots_editor->recognizeTriplets();
}
m_idiots_editor->trySplitInstruments();
m_tempo_inverse = m_idiots_editor->m_tempo_inverse;
m_upbeat_inverse = 0;
m_partcount = m_idiots_editor->getPartCount();
for (i = 0; i < m_partcount; i++) {
m_parts[i].voices[0] = m_idiots_editor->convertToNtEdNotes(i, 0);
for (j = 1; j < VOICE_COUNT; j++) {
m_parts[i].voices[j] = m_idiots_editor->convertToNtEdNotes(i, j);
}
strcpy(m_parts[i].id, "part1");
cptr = m_idiots_editor->getInstrumentName(i);
if (cptr == NULL) {
m_parts[i].name[0] = '\0';
}
else {
if (*cptr == '\0') {
m_parts[i].name[0] = '\0';
}
else {
strcpy(m_parts[i].name, cptr);
}
}
m_parts[i].clef = m_idiots_editor->getClef(i);
m_parts[i].clef_octave = m_idiots_editor->getOctaveShift(i);
m_parts[i].key_signature = m_idiots_editor->getKeySig(i);
m_parts[i].numerator = m_idiots_editor->getNumerator();
m_parts[i].denominator = m_idiots_editor->getDenominator();
m_parts[i].midi_pgm = m_idiots_editor->getMidiPgm(i);
m_parts[i].midi_channel = 0;
m_parts[i].volume = m_idiots_editor->getVolume(i);
}
return true;
}
NedMidiRecorder::~NedMidiRecorder() {
//printf("NedMidiRecorder::~NedMidiRecorder\n"); fflush(stdout);
delete m_idiots_editor;
}
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