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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 "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-client <options>\n");
printf(" -h print this and exit\n");
printf(" -v print version information and exit\n");
printf(" -m <dev> the MIDI control device name to use, i.e. hw:2,0,0\n");
printf(" (use `amidi -l` to list all available devices)'\n");
printf(" -o <host>:<port> the UDP host/port to send OSC messages to\n");
}
int main_loop(midi_t* m, osc_t* o)
{
int ret = 0;
printf("main_loop just started\n");
int midi_npfds_offset = 0;
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;
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 (;;) {
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 = midi_handle_revents(m, &(pfds[midi_npfds_offset]), midi_npfds, o);
if(ret)
break;
// ret = osc_handle_revents(o, &(pfds[osc_npfds_offset]), osc_npfds, m);
ret = osc_handle_revents(o, &(pfds[osc_npfds_offset]), osc_npfds);
if(ret)
break;
}
return ret;
}
int main(int argc, char* argv[])
{
int helpflag = 0;
int versionflag = 0;
char* midi_dev = NULL;
char* osc_target = NULL;
int c;
opterr = 0;
while ((c = getopt (argc, argv, "vhm:o:")) != -1) {
switch (c) {
case 'h':
helpflag = 1;
break;
case 'v':
versionflag = 1;
break;
case 'm':
midi_dev = optarg;
break;
case 'o':
osc_target = optarg;
break;
case '?':
if (optopt == 'm' || 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(!midi_dev){
error(0, 0, "MIDI device name must be set");
print_usage();
return -1;
}
if(!osc_target){
error(0, 0, "OSC target (host/port) name must be set");
print_usage();
return -1;
}
char* port = osc_target;
char* host = strsep(&port, ":");
char* remain = port;
strsep(&remain, ":");
if(!host || !port || remain) {
error(0, 0, "'%s' is not a valid targets, must be in the format <host>:<port>", osc_target);
print_usage();
return -1;
}
midi_t m;
if(midi_init(&m, midi_dev))
return -1;
osc_t o;
if(osc_init(&o, &m, host, port))
return -1;
int ret = main_loop(&m, &o);
return ret;
}
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