add new files

git-svn-id: svn://localhost/trunk/ardour2@511 d708f5d6-7413-0410-9779-e7cbd77b26cf

2 files changed, 496 insertions, 0 deletions

diff --git a/libs/ardour/ardour/osc.h b/libs/ardour/ardour/osc.h
new file mode 100644
index 0000000000..bcf4841a3d
--- /dev/null
+++ b/libs/ardour/ardour/osc.h
@@ -0,0 +1,117 @@
+/*
+ * 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.
+ *  
+ * $Id$
+ */
+
+#ifndef ardour_osc_h
+#define ardour_osc_h
+
+#include <string>
+
+#include <sys/time.h>
+#include <pthread.h>
+
+#include <lo/lo.h>
+
+#include <sigc++/sigc++.h>
+
+#include <ardour/types.h>
+#include <ardour/basic_ui.h>
+
+namespace ARDOUR {
+	class Session;
+	class Route;
+
+class OSC : public BasicUI, public sigc::trackable
+{
+  public:
+	OSC (uint32_t port);
+	virtual ~OSC();
+	
+	void set_session (ARDOUR::Session&);
+	int start ();
+	int stop ();
+
+  private:
+	uint32_t _port;
+	volatile bool _ok;
+	volatile bool _shutdown;
+	lo_server _osc_server;
+	lo_server _osc_unix_server;
+	std::string _osc_unix_socket_path;
+	pthread_t _osc_thread;
+	int _request_pipe[2];
+
+	static void * _osc_receiver(void * arg);
+	void osc_receiver();
+
+	bool init_osc_thread ();
+	void terminate_osc_thread ();
+	void poke_osc_thread ();
+
+	void register_callbacks ();
+
+	void session_going_away ();
+
+	std::string get_server_url ();
+	std::string get_unix_server_url ();
+
+#define PATH_CALLBACK(name) \
+        static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
+		return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
+        } \
+        int cb_ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data) { \
+		name (); \
+		return 0; \
+	}
+
+	PATH_CALLBACK(add_marker);
+	PATH_CALLBACK(loop_toggle);
+	PATH_CALLBACK(goto_start);
+	PATH_CALLBACK(goto_end);
+	PATH_CALLBACK(rewind);
+	PATH_CALLBACK(ffwd);
+	PATH_CALLBACK(transport_stop);
+	PATH_CALLBACK(transport_play);
+	PATH_CALLBACK(save_state);
+	PATH_CALLBACK(prev_marker);
+	PATH_CALLBACK(next_marker);
+	PATH_CALLBACK(undo);
+	PATH_CALLBACK(redo);
+	PATH_CALLBACK(toggle_punch_in);
+	PATH_CALLBACK(toggle_punch_out);
+	PATH_CALLBACK(rec_enable_toggle);
+	PATH_CALLBACK(toggle_all_rec_enables);
+
+#define PATH_CALLBACK1(name,type) \
+        static int _ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data, void *user_data) { \
+		return static_cast<OSC*>(user_data)->cb_ ## name (path, types, argv, argc, data); \
+        } \
+        int cb_ ## name (const char *path, const char *types, lo_arg **argv, int argc, void *data) { \
+                if (argc > 0) { \
+			name (argv[0]->type); \
+                }\
+		return 0; \
+	}
+
+	PATH_CALLBACK1(set_transport_speed,f);
+};
+
+}
+
+#endif // ardour_osc_h
diff --git a/libs/ardour/osc.cc b/libs/ardour/osc.cc
new file mode 100644
index 0000000000..9ab2bd3c3b
--- /dev/null
+++ b/libs/ardour/osc.cc
@@ -0,0 +1,379 @@
+/*
+ * 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.
+ *  
+ * $Id$
+ */
+
+#include <iostream>
+#include <cstdio>
+#include <cstdlib>
+#include <cerrno>
+#include <algorithm>
+
+#include <sys/poll.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <ardour/osc.h>
+#include <ardour/session.h>
+#include <ardour/route.h>
+#include <ardour/audio_track.h>
+
+#include "i18n.h"
+
+using namespace ARDOUR;
+using namespace sigc;
+using namespace std;
+
+static void error_callback(int num, const char *m, const char *path)
+{
+#ifdef DEBUG
+	fprintf(stderr, "liblo server error %d in path %s: %s\n", num, path, m);
+#endif
+}
+
+OSC::OSC (uint32_t port)
+	: _port(port)
+{
+	_shutdown = false;
+	_osc_server = 0;
+	_osc_unix_server = 0;
+	_osc_thread = 0;
+}
+
+int
+OSC::start ()
+{
+	char tmpstr[255];
+	
+	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;
+	
+	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 ()
+{	
+	lo_server_free (_osc_server);
+	
+	if (!_osc_unix_socket_path.empty()) {
+		// unlink it
+		unlink(_osc_unix_socket_path.c_str());
+	}
+	
+	// stop server thread
+	terminate_osc_thread();
+
+	return 0;
+}
+
+OSC::~OSC()
+{
+	stop ();
+}
+
+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];
+
+#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/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);
+
+#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_create (&_osc_thread, NULL, &OSC::_osc_receiver, this);
+	if (!_osc_thread) {
+		return false;
+	}
+
+	//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)
+{
+	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 */
+				cerr << "EINTR hit " << endl;
+				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::set_session (Session& s)
+{
+	session = &s;
+	session->going_away.connect (mem_fun (*this, &OSC::session_going_away));
+}
+
+void
+OSC::session_going_away ()
+{
+	session = 0;
+}
+
+/* path callbacks */
+