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livetrax/libs/surfaces/osc/osc.cc
Carl Hetherington 79f91c7a20 Part 1 of loading 2.X sessions; some things work, some things don't, hacks a-plenty. 
LOADING 2.X SESSIONS WITH THIS COMMIT IN PLACE WILL (PROBABLY) CORRUPT THE .ardour FILE,
MAKING THE SESSION UNLOADABLE ON 2.X AND LOSING INFORMATION.

So don't do that unless you make a backup of the session file first.



git-svn-id: svn://localhost/ardour2/branches/3.0@5786 d708f5d6-7413-0410-9779-e7cbd77b26cf
2009-10-15 00:57:55 +00:00

871 lines
18 KiB
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/*
* Copyright (C) 2006 Paul Davis
*
* 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
#include <iostream>
#include <fstream>
#include <cstdio>
#include <cstdlib>
#include <cerrno>
#include <algorithm>
#include <sys/poll.h>
#include <unistd.h>
#include <fcntl.h>
#include <glibmm/miscutils.h>
#include <pbd/pthread_utils.h>
#include <pbd/file_utils.h>
#include <pbd/filesystem.h>
#include <pbd/failed_constructor.h>
#include <ardour/session.h>
#include <ardour/route.h>
#include <ardour/audio_track.h>
#include <ardour/midi_track.h>
#include <ardour/dB.h>
#include <ardour/filesystem_paths.h>
#include "osc.h"
#include "osc_controllable.h"
#include "i18n.h"
using namespace ARDOUR;
using namespace sigc;
using namespace std;
#ifdef DEBUG
static void error_callback(int num, const char *m, const char *path)
{
fprintf(stderr, "liblo server error %d in path %s: %s\n", num, path, m);
}
#else
static void error_callback(int, const char *, const char *)
{
}
#endif
OSC::OSC (Session& s, uint32_t port)
: ControlProtocol (s, "OSC")
, _port(port)
{
_shutdown = false;
_osc_server = 0;
_osc_unix_server = 0;
_osc_thread = 0;
_namespace_root = "/ardour";
_send_route_changes = true;
// "Application Hooks"
session_loaded (s);
session->Exported.connect( mem_fun( *this, &OSC::session_exported ) );
/* catch up with existing routes */
boost::shared_ptr<RouteList> rl = session->get_routes ();
route_added (*(rl.get()));
// session->RouteAdded.connect (mem_fun (*this, &OSC::route_added));
}
OSC::~OSC()
{
stop ();
}
int
OSC::set_active (bool yn)
{
if (yn) {
return start ();
} else {
return stop ();
}
}
bool
OSC::get_active () const
{
return _osc_server != 0;
}
int
OSC::set_feedback (bool yn)
{
_send_route_changes = yn;
return 0;
}
bool
OSC::get_feedback () const
{
return _send_route_changes;
}
int
OSC::start ()
{
char tmpstr[255];
if (_osc_server) {
/* already started */
return 0;
}
for (int j=0; j < 20; ++j) {
snprintf(tmpstr, sizeof(tmpstr), "%d", _port);
if ((_osc_server = lo_server_new (tmpstr, error_callback))) {
break;
}
#ifdef DEBUG
cerr << "can't get osc at port: " << _port << endl;
#endif
_port++;
continue;
}
#ifdef ARDOUR_OSC_UNIX_SERVER
// APPEARS sluggish for now
// attempt to create unix socket server too
snprintf(tmpstr, sizeof(tmpstr), "/tmp/sooperlooper_XXXXXX");
int fd = mkstemp(tmpstr);
if (fd >= 0 ) {
unlink (tmpstr);
close (fd);
_osc_unix_server = lo_server_new (tmpstr, error_callback);
if (_osc_unix_server) {
_osc_unix_socket_path = tmpstr;
}
}
#endif
cerr << "OSC @ " << get_server_url () << endl;
PBD::sys::path url_file;
if (find_file_in_search_path (ardour_search_path() + system_config_search_path(),
"osc_url", url_file)) {
_osc_url_file = url_file.to_string();
ofstream urlfile;
urlfile.open(_osc_url_file.c_str(), ios::trunc);
if ( urlfile )
{
urlfile << get_server_url () << endl;
urlfile.close();
}
else
{
cerr << "Couldn't write '" << _osc_url_file << "'" <<endl;
}
}
register_callbacks();
// lo_server_thread_add_method(_sthread, NULL, NULL, OSC::_dummy_handler, this);
if (!init_osc_thread()) {
return -1;
}
return 0;
}
int
OSC::stop ()
{
if (_osc_server == 0) {
/* already stopped */
return 0;
}
// stop server thread
terminate_osc_thread();
lo_server_free (_osc_server);
_osc_server = 0;
if (!_osc_unix_socket_path.empty()) {
// unlink it
unlink(_osc_unix_socket_path.c_str());
}
if (! _osc_url_file.empty() ) {
unlink(_osc_url_file.c_str() );
}
return 0;
}
void
OSC::register_callbacks()
{
lo_server srvs[2];
lo_server serv;
srvs[0] = _osc_server;
srvs[1] = _osc_unix_server;
for (size_t i = 0; i < 2; ++i) {
if (!srvs[i]) {
continue;
}
serv = srvs[i];
/* this is a special catchall handler */
lo_server_add_method (serv, 0, 0, _catchall, this);
#define REGISTER_CALLBACK(serv,path,types, function) lo_server_add_method (serv, path, types, OSC::_ ## function, this)
REGISTER_CALLBACK (serv, "/ardour/add_marker", "", add_marker);
REGISTER_CALLBACK (serv, "/ardour/access_action", "s", access_action);
REGISTER_CALLBACK (serv, "/ardour/loop_toggle", "", loop_toggle);
REGISTER_CALLBACK (serv, "/ardour/goto_start", "", goto_start);
REGISTER_CALLBACK (serv, "/ardour/goto_end", "", goto_end);
REGISTER_CALLBACK (serv, "/ardour/rewind", "", rewind);
REGISTER_CALLBACK (serv, "/ardour/ffwd", "", ffwd);
REGISTER_CALLBACK (serv, "/ardour/transport_stop", "", transport_stop);
REGISTER_CALLBACK (serv, "/ardour/transport_play", "", transport_play);
REGISTER_CALLBACK (serv, "/ardour/set_transport_speed", "f", set_transport_speed);
REGISTER_CALLBACK (serv, "/ardour/save_state", "", save_state);
REGISTER_CALLBACK (serv, "/ardour/prev_marker", "", prev_marker);
REGISTER_CALLBACK (serv, "/ardour/next_marker", "", next_marker);
REGISTER_CALLBACK (serv, "/ardour/undo", "", undo);
REGISTER_CALLBACK (serv, "/ardour/redo", "", redo);
REGISTER_CALLBACK (serv, "/ardour/toggle_punch_in", "", toggle_punch_in);
REGISTER_CALLBACK (serv, "/ardour/toggle_punch_out", "", toggle_punch_out);
REGISTER_CALLBACK (serv, "/ardour/rec_enable_toggle", "", rec_enable_toggle);
REGISTER_CALLBACK (serv, "/ardour/toggle_all_rec_enables", "", toggle_all_rec_enables);
REGISTER_CALLBACK (serv, "/ardour/routes/mute", "ii", route_mute);
REGISTER_CALLBACK (serv, "/ardour/routes/solo", "ii", route_solo);
REGISTER_CALLBACK (serv, "/ardour/routes/recenable", "ii", route_recenable);
REGISTER_CALLBACK (serv, "/ardour/routes/gainabs", "if", route_set_gain_abs);
REGISTER_CALLBACK (serv, "/ardour/routes/gaindB", "if", route_set_gain_dB);
#if 0
REGISTER_CALLBACK (serv, "/ardour/*/#current_value", "", current_value);
REGISTER_CALLBACK (serv, "/ardour/set", "", set);
#endif
#if 0
// un/register_update args= s:ctrl s:returl s:retpath
lo_server_add_method(serv, "/register_update", "sss", OSC::global_register_update_handler, this);
lo_server_add_method(serv, "/unregister_update", "sss", OSC::global_unregister_update_handler, this);
lo_server_add_method(serv, "/register_auto_update", "siss", OSC::global_register_auto_update_handler, this);
lo_server_add_method(serv, "/unregister_auto_update", "sss", OSC::_global_unregister_auto_update_handler, this);
#endif
}
}
bool
OSC::init_osc_thread ()
{
// create new thread to run server
if (pipe (_request_pipe)) {
cerr << "Cannot create osc request signal pipe" << strerror (errno) << endl;
return false;
}
if (fcntl (_request_pipe[0], F_SETFL, O_NONBLOCK)) {
cerr << "osc: cannot set O_NONBLOCK on signal read pipe " << strerror (errno) << endl;
return false;
}
if (fcntl (_request_pipe[1], F_SETFL, O_NONBLOCK)) {
cerr << "osc: cannot set O_NONBLOCK on signal write pipe " << strerror (errno) << endl;
return false;
}
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, 500000);
pthread_create_and_store (X_("OSC"), &_osc_thread, &attr, &OSC::_osc_receiver, this);
if (!_osc_thread) {
return false;
}
pthread_attr_destroy(&attr);
//pthread_detach (_osc_thread);
return true;
}
void
OSC::terminate_osc_thread ()
{
void* status;
_shutdown = true;
poke_osc_thread ();
pthread_join (_osc_thread, &status);
}
void
OSC::poke_osc_thread ()
{
char c;
if (write (_request_pipe[1], &c, 1) != 1) {
cerr << "cannot send signal to osc thread! " << strerror (errno) << endl;
}
}
std::string
OSC::get_server_url()
{
string url;
char * urlstr;
if (_osc_server) {
urlstr = lo_server_get_url (_osc_server);
url = urlstr;
free (urlstr);
}
return url;
}
std::string
OSC::get_unix_server_url()
{
string url;
char * urlstr;
if (_osc_unix_server) {
urlstr = lo_server_get_url (_osc_unix_server);
url = urlstr;
free (urlstr);
}
return url;
}
/* server thread */
void *
OSC::_osc_receiver(void * arg)
{
PBD::notify_gui_about_thread_creation (pthread_self(), X_("OSC"));
static_cast<OSC*> (arg)->osc_receiver();
return 0;
}
void
OSC::osc_receiver()
{
struct pollfd pfd[3];
int fds[3];
lo_server srvs[3];
int nfds = 0;
int timeout = -1;
int ret;
fds[0] = _request_pipe[0];
nfds++;
if (_osc_server && lo_server_get_socket_fd(_osc_server) >= 0) {
fds[nfds] = lo_server_get_socket_fd(_osc_server);
srvs[nfds] = _osc_server;
nfds++;
}
if (_osc_unix_server && lo_server_get_socket_fd(_osc_unix_server) >= 0) {
fds[nfds] = lo_server_get_socket_fd(_osc_unix_server);
srvs[nfds] = _osc_unix_server;
nfds++;
}
while (!_shutdown) {
for (int i=0; i < nfds; ++i) {
pfd[i].fd = fds[i];
pfd[i].events = POLLIN|POLLPRI|POLLHUP|POLLERR;
pfd[i].revents = 0;
}
again:
//cerr << "poll on " << nfds << " for " << timeout << endl;
if ((ret = poll (pfd, nfds, timeout)) < 0) {
if (errno == EINTR) {
/* gdb at work, perhaps */
goto again;
}
cerr << "OSC thread poll failed: " << strerror (errno) << endl;
break;
}
//cerr << "poll returned " << ret << " pfd[0].revents = " << pfd[0].revents << " pfd[1].revents = " << pfd[1].revents << endl;
if (_shutdown) {
break;
}
if ((pfd[0].revents & ~POLLIN)) {
cerr << "OSC: error polling extra port" << endl;
break;
}
for (int i=1; i < nfds; ++i) {
if (pfd[i].revents & POLLIN)
{
// this invokes callbacks
// cerr << "invoking recv on " << pfd[i].fd << endl;
lo_server_recv(srvs[i]);
}
}
}
//cerr << "SL engine shutdown" << endl;
if (_osc_server) {
int fd = lo_server_get_socket_fd(_osc_server);
if (fd >=0) {
// hack around
close(fd);
}
lo_server_free (_osc_server);
_osc_server = 0;
}
if (_osc_unix_server) {
cerr << "freeing unix server" << endl;
lo_server_free (_osc_unix_server);
_osc_unix_server = 0;
}
close(_request_pipe[0]);
close(_request_pipe[1]);
}
void
OSC::current_value_query (const char* path, size_t len, lo_arg **argv, int argc, lo_message msg)
{
char* subpath;
subpath = (char*) malloc (len-15+1);
memcpy (subpath, path, len-15);
subpath[len-15] = '\0';
send_current_value (subpath, argv, argc, msg);
free (subpath);
}
void
OSC::send_current_value (const char* path, lo_arg** argv, int argc, lo_message msg)
{
if (!session) {
return;
}
lo_message reply = lo_message_new ();
boost::shared_ptr<Route> r;
int id;
lo_message_add_string (reply, path);
if (argc == 0) {
lo_message_add_string (reply, "bad syntax");
} else {
id = argv[0]->i;
r = session->route_by_remote_id (id);
if (!r) {
lo_message_add_string (reply, "not found");
} else {
if (strcmp (path, "/routes/state") == 0) {
if (boost::dynamic_pointer_cast<AudioTrack>(r)) {
lo_message_add_string (reply, "AT");
} else if (boost::dynamic_pointer_cast<MidiTrack>(r)) {
lo_message_add_string (reply, "MT");
} else {
lo_message_add_string (reply, "B");
}
lo_message_add_string (reply, r->name().c_str());
lo_message_add_int32 (reply, r->n_inputs().n_audio());
lo_message_add_int32 (reply, r->n_outputs().n_audio());
lo_message_add_int32 (reply, r->muted());
lo_message_add_int32 (reply, r->soloed());
} else if (strcmp (path, "/routes/mute") == 0) {
lo_message_add_int32 (reply, (float) r->muted());
} else if (strcmp (path, "/routes/solo") == 0) {
lo_message_add_int32 (reply, r->soloed());
}
}
}
lo_send_message (lo_message_get_source (msg), "#reply", reply);
lo_message_free (reply);
}
int
OSC::_catchall (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data)
{
return ((OSC*)user_data)->catchall (path, types, argv, argc, data);
}
int
OSC::catchall (const char *path, const char *types, lo_arg **argv, int argc, lo_message msg)
{
size_t len;
int ret = 1; /* unhandled */
cerr << "Received a message, path = " << path << " types = \""
<< (types ? types : "NULL") << '"' << endl;
/* 15 for /#current_value plus 2 for /<path> */
len = strlen (path);
if (len >= 17 && !strcmp (&path[len-15], "/#current_value")) {
current_value_query (path, len, argv, argc, msg);
ret = 0;
} else if (strcmp (path, "/routes/listen") == 0) {
cerr << "set up listener\n";
lo_message reply = lo_message_new ();
if (argc <= 0) {
lo_message_add_string (reply, "syntax error");
} else {
for (int n = 0; n < argc; ++n) {
boost::shared_ptr<Route> r = session->route_by_remote_id (argv[n]->i);
if (!r) {
lo_message_add_string (reply, "not found");
cerr << "no such route\n";
break;
} else {
cerr << "add listener\n";
listen_to_route (r, lo_message_get_source (msg));
lo_message_add_int32 (reply, argv[n]->i);
}
}
}
lo_send_message (lo_message_get_source (msg), "#reply", reply);
lo_message_free (reply);
} else if (strcmp (path, "/routes/ignore") == 0) {
for (int n = 0; n < argc; ++n) {
boost::shared_ptr<Route> r = session->route_by_remote_id (argv[n]->i);
if (r) {
end_listen (r, lo_message_get_source (msg));
}
}
}
return ret;
}
void
OSC::route_added (RouteList&)
{
}
void
OSC::listen_to_route (boost::shared_ptr<Route> route, lo_address addr)
{
Controllables::iterator x;
bool route_exists = false;
cerr << "listen to route\n";
/* avoid duplicate listens */
for (x = controllables.begin(); x != controllables.end(); ++x) {
OSCRouteControllable* rc;
if ((rc = dynamic_cast<OSCRouteControllable*>(*x)) != 0) {
if (rc->route() == route) {
route_exists = true;
/* XXX NEED lo_address_equal() */
if (rc->address() == addr) {
return;
}
}
}
}
cerr << "listener binding to signals\n";
OSCControllable* c;
string path;
path = X_("/route/solo");
c = new OSCRouteControllable (addr, path, route->solo_control(), route);
controllables.push_back (c);
path = X_("/route/mute");
c = new OSCRouteControllable (addr, path, route->mute_control(), route);
controllables.push_back (c);
path = X_("/route/gain");
c = new OSCRouteControllable (addr, path, route->gain_control(), route);
controllables.push_back (c);
cerr << "Now have " << controllables.size() << " controllables\n";
/* if there is no existing controllable related to this route, make sure we clean up
if it is ever deleted.
*/
if (!route_exists) {
route->GoingAway.connect (bind (mem_fun (*this, &OSC::drop_route), boost::weak_ptr<Route> (route)));
}
}
void
OSC::drop_route (boost::weak_ptr<Route> wr)
{
boost::shared_ptr<Route> r = wr.lock ();
if (!r) {
return;
}
for (Controllables::iterator x = controllables.begin(); x != controllables.end();) {
OSCRouteControllable* rc;
if ((rc = dynamic_cast<OSCRouteControllable*>(*x)) != 0) {
if (rc->route() == r) {
delete *x;
x = controllables.erase (x);
} else {
++x;
}
} else {
++x;
}
}
}
void
OSC::end_listen (boost::shared_ptr<Route> r, lo_address addr)
{
Controllables::iterator x;
for (x = controllables.begin(); x != controllables.end(); ++x) {
OSCRouteControllable* rc;
if ((rc = dynamic_cast<OSCRouteControllable*>(*x)) != 0) {
/* XXX NEED lo_address_equal () */
if (rc->route() == r && rc->address() == addr) {
controllables.erase (x);
return;
}
}
}
}
// "Application Hook" Handlers //
void
OSC::session_loaded( Session& s ) {
lo_address listener = lo_address_new( NULL, "7770" );
lo_send( listener, "/session/loaded", "ss", s.path().c_str(), s.name().c_str() );
}
void
OSC::session_exported( std::string path, std::string name ) {
lo_address listener = lo_address_new( NULL, "7770" );
lo_send( listener, "/session/exported", "ss", path.c_str(), name.c_str() );
}
// end "Application Hook" Handlers //
/* path callbacks */
int
OSC::current_value (const char */*path*/, const char */*types*/, lo_arg **/*argv*/, int /*argc*/, void */*data*/, void* /*user_data*/)
{
#if 0
const char* returl;
if (argc < 3 || types == 0 || strlen (types) < 3 || types[0] != 's' || types[1] != 's' || types[2] != s) {
return 1;
}
const char *returl = argv[1]->s;
lo_address addr = find_or_cache_addr (returl);
const char *retpath = argv[2]->s;
if (strcmp (argv[0]->s, "transport_frame") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else if (strcmp (argv[0]->s, "transport_speed") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else if (strcmp (argv[0]->s, "transport_locked") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else if (strcmp (argv[0]->s, "punch_in") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else if (strcmp (argv[0]->s, "punch_out") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else if (strcmp (argv[0]->s, "rec_enable") == 0) {
if (session) {
lo_send (addr, retpath, "i", session->transport_frame());
}
} else {
/* error */
}
#endif
return 0;
}
int
OSC::route_mute (int rid, int yn)
{
if (!session) return -1;
boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
if (r) {
r->set_mute (yn, this);
}
return 0;
}
int
OSC::route_solo (int rid, int yn)
{
if (!session) return -1;
boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
if (r) {
r->set_solo (yn, this);
}
return 0;
}
int
OSC::route_recenable (int rid, int yn)
{
if (!session) return -1;
boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
if (r) {
r->set_record_enable (yn, this);
}
return 0;
}
int
OSC::route_set_gain_abs (int rid, float level)
{
if (!session) return -1;
boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
if (r) {
r->set_gain (level, this);
}
return 0;
}
int
OSC::route_set_gain_dB (int rid, float dB)
{
if (!session) return -1;
boost::shared_ptr<Route> r = session->route_by_remote_id (rid);
if (r) {
r->set_gain (dB_to_coefficient (dB), this);
}
return 0;
}
XMLNode&
OSC::get_state ()
{
return *(new XMLNode ("OSC"));
}
int
OSC::set_state (const XMLNode&, int /*version*/)
{
return 0;
}
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