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/*
* dolmetschctl
*
*
* Copyright (C) 2015 Christian Pointner <equinox@spreadspace.org>
*
* This file is part of dolmetschctl.
*
* dolmetschctl 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 3 of the License, or
* any later version.
*
* dolmetschctl 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 dolmetschctl. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <stdio.h>
#include <unistd.h>
#include <ctype.h>
#include <error.h>
#include <lo/lo.h>
#include <alsa/asoundlib.h>
#include "mixer.h"
#include "midi.h"
#include "osc.h"
void print_version()
{
printf("%s\n", VERSION_STRING_0);
#if defined(__clang__)
printf("%s, using CLANG %s\n", VERSION_STRING_1, __clang_version__);
#elif defined(__GNUC__)
printf("%s, using GCC %d.%d.%d\n", VERSION_STRING_1, __GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__);
#else
printf("%s\n", VERSION_STRING_1);
#endif
printf("linked against alsa-lib Version %s\n", snd_asoundlib_version());
char verstr[32];
lo_version(verstr, sizeof(verstr), 0, 0, 0, 0, 0, 0, 0);
printf("linked against liblo Version %s\n", verstr);
}
void print_usage()
{
printf("\ndolmetschctl <options>\n");
printf(" -h print this and exit\n");
printf(" -v print version information and exit\n");
printf(" -x <name> the name of the mixer, dolmetschctl will look for\n");
printf(" language files inside '%s/<name>/'\n", ETCDIR);
printf(" -d <dev> the mixer MIDI device name to use, i.e. hw:2,0,0\n");
printf(" (use `amidi -l` to list all available devices)'\n");
printf(" -m <dev> the MIDI control device name to use, this can be omitted to\n");
printf(" only wait for OSC messages'\n");
printf(" -o <port> the UDP port to listen on for OSC messages, this can be omitted\n");
printf(" to only use the control MIDI interface'\n");
}
int main_loop(mixer_t* x, midi_t* m, osc_t* o)
{
int ret = 0;
printf("main_loop just started\n");
int mixer_npfds_offset = 0;
int mixer_npfds = mixer_get_poll_fd_count(x);
assert(mixer_npfds > 0);
int midi_npfds_offset = mixer_npfds_offset + mixer_npfds;
int midi_npfds = midi_get_poll_fd_count(m);
assert(midi_npfds >= 0);
int osc_npfds_offset = midi_npfds_offset + midi_npfds;
int osc_npfds = osc_get_poll_fd_count(o);
assert(osc_npfds >= 0);
int npfds = midi_npfds + osc_npfds + mixer_npfds;
struct pollfd *pfds = alloca(npfds * sizeof(struct pollfd));
if(!pfds) {
error(0, 0, "error while allocating poll fds - stack corrupted??");
return -1;
}
printf("main_loop running with %d pollfds...\n", npfds);
for (;;) {
mixer_get_poll_fds(x, &(pfds[mixer_npfds_offset]), mixer_npfds);
midi_get_poll_fds(m, &(pfds[midi_npfds_offset]), midi_npfds);
osc_get_poll_fds(o, &(pfds[osc_npfds_offset]), osc_npfds);
int err = poll(pfds, npfds, 200);
if(err < 0 && errno != EINTR) {
error(0, errno, "poll failed");
break;
}
if(err <= 0) {
// timeout or EINTR
continue;
}
ret = mixer_handle_revents(x, &(pfds[mixer_npfds_offset]), mixer_npfds);
if(ret)
break;
ret = midi_handle_revents(m, &(pfds[midi_npfds_offset]), midi_npfds, x);
if(ret)
break;
ret = osc_handle_revents(o, &(pfds[osc_npfds_offset]), osc_npfds, x);
if(ret)
break;
}
return ret;
}
int main(int argc, char* argv[])
{
int helpflag = 0;
int versionflag = 0;
char* mixer_name = NULL;
char* mixer_dev = NULL;
char* midi_dev = NULL;
char* osc_port = NULL;
int c;
opterr = 0;
while ((c = getopt (argc, argv, "vhx:d:m:o:")) != -1) {
switch (c) {
case 'h':
helpflag = 1;
break;
case 'v':
versionflag = 1;
break;
case 'x':
mixer_name = optarg;
break;
case 'd':
mixer_dev = optarg;
break;
case 'm':
midi_dev = optarg;
break;
case 'o':
osc_port = optarg;
break;
case '?':
if (optopt == 'x')
error(0, 0, "Option -%c requires an argument.\n", optopt);
else if (optopt == 'd')
error(0, 0, "Option -%c requires an argument.\n", optopt);
else if (optopt == 'm')
error(0, 0, "Option -%c requires an argument.\n", optopt);
else if (optopt == 'o')
error(0, 0, "Option -%c requires an argument.\n", optopt);
else if (isprint (optopt))
error(0, 0, "Unknown option `-%c'.\n", optopt);
else
error(0, 0, "Unknown option character `\\x%x'.\n", optopt);
return -1;
default:
return -1;
}
}
if(helpflag) {
print_usage();
return 0;
}
if(versionflag) {
print_version();
return 0;
}
if(!mixer_name){
error(0, 0, "mixer name must be set");
print_usage();
return -1;
}
if(!mixer_dev){
error(0, 0, "mixer device name must be set");
print_usage();
return -1;
}
if(!midi_dev && !osc_port) {
error(0, 0, "either midi or osc (or both) must be specified");
print_usage();
return -1;
}
mixer_t x;
if(mixer_init(&x, mixer_name, mixer_dev))
return -1;
midi_t m;
if(midi_init(&m, midi_dev))
return -1;
osc_t o;
if(osc_init(&o, osc_port))
return -1;
int ret = main_loop(&x, &m, &o);
return ret;
}
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