int main (int argc, char *argv[]) {
int nfds, seq_nfds, l1;
struct pollfd *pfds;
if (argc < 6) {
fprintf(stderr, "LinzerSchnitteMIDI <hw:0,0,1> <attack> <decay> <sustain> <release>\n");
exit(1);
}
attack = atof(argv[2]);
decay = atof(argv[3]);
sustain = atof(argv[4]);
release = atof(argv[5]);
/* polyphony = atoi(argv[6]);
buffersize = atoi(argv[7]);
outputvolume = atoi(argv[8]);
firstnotefreq = atoi(argv[9]);
freqchannelwidth = atoi(argv[10]);
*/
buf = (short *) malloc (2 * sizeof (short) * BUFSIZE);
playback_handle = open_pcm(argv[1]);
seq_handle = open_seq();
seq_nfds = snd_seq_poll_descriptors_count(seq_handle, POLLIN);
nfds = snd_pcm_poll_descriptors_count (playback_handle);
pfds = (struct pollfd *)alloca(sizeof(struct pollfd) * (seq_nfds + nfds));
snd_seq_poll_descriptors(seq_handle, pfds, seq_nfds, POLLIN);
snd_pcm_poll_descriptors (playback_handle, pfds+seq_nfds, nfds);
connect2MidiThroughPort(seq_handle);
for (l1 = 0; l1 < POLY; note_active[l1++] = 0);
while (1) {
if (poll (pfds, seq_nfds + nfds, 1000) > 0) {
for (l1 = 0; l1 < seq_nfds; l1++) {
if (pfds[l1].revents > 0) midi_callback();
}
for (l1 = seq_nfds; l1 < seq_nfds + nfds; l1++) {
if (pfds[l1].revents > 0) {
if (playback_callback(BUFSIZE) < BUFSIZE) {
fprintf (stderr, "xrun ! increase buffer \n");
snd_pcm_prepare(playback_handle);
}
}
}
}
}
snd_pcm_close (playback_handle);
snd_seq_close (seq_handle);
free(buf);
return (0);
}
int main (int argc, char *argv[]) {
int nfds, seq_nfds, l1;
struct pollfd *pfds;
if (argc < 10) {
fprintf(stderr, "miniFMsynth <device> <FM> <harmonic> <subharmonic> <transpose> <a> <d> <s> <r>\n");
exit(1);
}
modulation = atof(argv[2]);
harmonic = atoi(argv[3]);
subharmonic = atoi(argv[4]);
transpose = atoi(argv[5]);
attack = atof(argv[6]);
decay = atof(argv[7]);
sustain = atof(argv[8]);
release = atof(argv[9]);
pitch = 0;
buf = (short *) malloc (2 * sizeof (short) * BUFSIZE);
playback_handle = open_pcm(argv[1]);
seq_handle = open_seq();
seq_nfds = snd_seq_poll_descriptors_count(seq_handle, POLLIN);
nfds = snd_pcm_poll_descriptors_count (playback_handle);
pfds = (struct pollfd *)alloca(sizeof(struct pollfd) * (seq_nfds + nfds));
snd_seq_poll_descriptors(seq_handle, pfds, seq_nfds, POLLIN);
snd_pcm_poll_descriptors (playback_handle, pfds+seq_nfds, nfds);
for (l1 = 0; l1 < POLY; note_active[l1++] = 0);
while (1) {
if (poll (pfds, seq_nfds + nfds, 1000) > 0) {
for (l1 = 0; l1 < seq_nfds; l1++) {
if (pfds[l1].revents > 0) midi_callback();
}
for (l1 = seq_nfds; l1 < seq_nfds + nfds; l1++) {
if (pfds[l1].revents > 0) {
if (playback_callback(BUFSIZE) < BUFSIZE) {
fprintf (stderr, "xrun !\n");
snd_pcm_prepare(playback_handle);
}
}
}
}
}
snd_pcm_close (playback_handle);
snd_seq_close (seq_handle);
free(buf);
return (0);
}
void* startSnd(void *arg){
sndbuf = (short *) malloc (2 * sizeof (short) * BUFSAMPS); //each sample is 2 chans, 2 byte shorts
if(!sndbuf){free(snddat);return NULL;}
pcm_handle = open_pcm("hw:0,0");
if(!pcm_handle){free(sndbuf);free(snddat);return NULL;}
memset(sndbuf, 0, 2 * sizeof (short) * BUFSAMPS);
int nfds = snd_pcm_poll_descriptors_count (pcm_handle);
struct pollfd *pfds = (struct pollfd *)alloca(sizeof(struct pollfd) * nfds);
snd_pcm_poll_descriptors(pcm_handle, pfds, nfds);
while(!bQuit){
if (poll (pfds, nfds, 1000) > 0) {
int i;
for (i = 0; i < nfds; i++) {
if (pfds[i].revents > 0) {
if (playback_callback(BUFSAMPS) < BUFSAMPS) snd_pcm_prepare(pcm_handle);
}
}
}
}
snd_pcm_close(pcm_handle);
free(sndbuf);free(snddat);
return NULL;
}
void SoundThread::play()
{
int err;
/* wait till the interface is ready for data, or 16 milli second
has elapsed.
*/
if ((err = snd_pcm_wait(playback_handle, 16)) < 0)
{
fprintf(stderr, "poll failed (%s)\n", strerror (errno));
}
/* find out how much space is available for playback data */
if ((frames_to_deliver = snd_pcm_avail_update (playback_handle)) < 0)
{
if (frames_to_deliver == -EPIPE)
{
fprintf (stderr, "an xrun occured\n");
}
else
{
fprintf (stderr, "unknown ALSA avail update return value (%d)\n",
(int)frames_to_deliver);
}
}
frames_to_deliver = frames_to_deliver > 4096 ? 4096 : frames_to_deliver;
/* deliver the data */
if (playback_callback (frames_to_deliver) != frames_to_deliver)
{
fprintf (stderr, "playback callback failed\n");
}
}
main (int argc, char *argv[])
{
snd_pcm_hw_params_t *hw_params;
snd_pcm_sw_params_t *sw_params;
snd_pcm_sframes_t frames_to_deliver;
int nfds;
int err;
struct pollfd *pfds;
if ((err = snd_pcm_open (&playback_handle, argv[1], SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
fprintf (stderr, "cannot open audio device %s (%s)\n",
argv[1],
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) {
fprintf (stderr, "cannot allocate hardware parameter structure (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_any (playback_handle, hw_params)) < 0) {
fprintf (stderr, "cannot initialize hardware parameter structure (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_set_access (playback_handle, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
fprintf (stderr, "cannot set access type (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_set_format (playback_handle, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
fprintf (stderr, "cannot set sample format (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_set_rate_near (playback_handle, hw_params, 44100, 0)) < 0) {
fprintf (stderr, "cannot set sample rate (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_set_channels (playback_handle, hw_params, 2)) < 0) {
fprintf (stderr, "cannot set channel count (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params (playback_handle, hw_params)) < 0) {
fprintf (stderr, "cannot set parameters (%s)\n",
snd_strerror (err));
exit (1);
}
snd_pcm_hw_params_free (hw_params);
if ((err = snd_pcm_sw_params_malloc (&sw_params)) < 0) {
fprintf (stderr, "cannot allocate software parameters structure (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_sw_params_current (playback_handle, sw_params)) < 0) {
fprintf (stderr, "cannot initialize software parameters structure (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_sw_params_set_avail_min (playback_handle, sw_params, 4096)) < 0) {
fprintf (stderr, "cannot set minimum available count (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_sw_params_set_start_threshold (playback_handle, sw_params, 0U)) < 0) {
fprintf (stderr, "cannot set start mode (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_sw_params (playback_handle, sw_params)) < 0) {
fprintf (stderr, "cannot set software parameters (%s)\n",
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_prepare (playback_handle)) < 0) {
fprintf (stderr, "cannot prepare audio interface for use (%s)\n",
snd_strerror (err));
exit (1);
}
while (1) {
if ((err = snd_pcm_wait (playback_handle, 1000)) < 0) {
fprintf (stderr, "poll failed (%s)\n", strerror (errno));
break;
}
if ((frames_to_deliver = snd_pcm_avail_update (playback_handle)) < 0) {
if (frames_to_deliver == -EPIPE) {
fprintf (stderr, "an xrun occured\n");
break;
} else {
fprintf (stderr, "unknown ALSA avail update return value (%d)\n",
frames_to_deliver);
break;
}
}
frames_to_deliver = frames_to_deliver > 4096 ? 4096 : frames_to_deliver;
if (playback_callback (frames_to_deliver) != frames_to_deliver) {
fprintf (stderr, "playback callback failed\n");
break;
}
}
snd_pcm_close (playback_handle);
exit (0);
}
int main (int argc, char *argv[]) {
int nfds, seq_nfds, l1;
//int key;
//key=0;
char *hwdevice;
struct pollfd *pfds;
/*
if (argc < 2) {
fprintf(stderr, "LinzerSchnitteMIDI <hw:0,0,1> <attack> <decay> <sustain> <release>\n");
exit(1);
}
*/
initscr(); /* start the curses setup */
atexit(do_endwin);
keypad(stdscr, TRUE);
noecho();
scrollok(stdscr, TRUE);
printw("Welcome to LinzerSchnitte\n");
refresh();
start_color();
init_pair(1, COLOR_RED, COLOR_BLACK); /* end the curses setup */
/* Set default */
hwdevice = "hw:0,0,1";
attack = 0.001;
decay = 0.001;
sustain = 1;
release = 0.001;
if (argc > 1) {
hwdevice = argv[1];
}
/* attack = atof(argv[2]);
decay = atof(argv[3]);
sustain = atof(argv[4]);
release = atof(argv[5]);
*/
buf = (short *) malloc (2 * sizeof (short) * BUFSIZE);
playback_handle = open_pcm(hwdevice);
seq_handle = open_seq();
seq_nfds = snd_seq_poll_descriptors_count(seq_handle, POLLIN);
nfds = snd_pcm_poll_descriptors_count (playback_handle);
pfds = (struct pollfd *)alloca(sizeof(struct pollfd) * (seq_nfds + nfds));
snd_seq_poll_descriptors(seq_handle, pfds, seq_nfds, POLLIN);
snd_pcm_poll_descriptors (playback_handle, pfds+seq_nfds, nfds);
connect2MidiThroughPort(seq_handle);
for (l1 = 0; l1 < POLY; note_active[l1++] = 0);
while (1) {
if (poll (pfds, seq_nfds + nfds, 1000) > 0) {
for (l1 = 0; l1 < seq_nfds; l1++) {
if (pfds[l1].revents > 0) midi_callback();
}
for (l1 = seq_nfds; l1 < seq_nfds + nfds; l1++) {
if (pfds[l1].revents > 0) {
if (playback_callback(BUFSIZE) < BUFSIZE) {
fprintf (stderr, "xrun ! increase buffer \n");
snd_pcm_prepare(playback_handle);
}
}
}
}
}
snd_pcm_close (playback_handle);
snd_seq_close (seq_handle);
free(buf);
return (0);
}
