345 lines
11 KiB
C++
345 lines
11 KiB
C++
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/*******************************************************************************/
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/* Copyright (C) 2010 Jonathan Moore Liles */
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/* */
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/* This program is free software; you can redistribute it and/or modify it */
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/* under the terms of the GNU General Public License as published by the */
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/* Free Software Foundation; either version 2 of the License, or (at your */
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/* option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, but WITHOUT */
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
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/* more details. */
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/* */
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/* You should have received a copy of the GNU General Public License along */
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/* with This program; see the file COPYING. If not,write to the Free Software */
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/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*******************************************************************************/
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#pragma once
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#include <lo/lo.h>
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#include "Thread.H"
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#include <list>
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#include <stdlib.h>
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#include <string.h>
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namespace OSC
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{
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class OSC_Value
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{
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protected:
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char _type;
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float f;
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double d;
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int i;
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const char *s;
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public:
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OSC_Value ( const OSC_Value &rhs )
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{
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_type = rhs._type;
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f =rhs.f;
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d = rhs.d;
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i = rhs.i;
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s = rhs.s;
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}
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OSC_Value ( )
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{
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_type = 0;
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f = 0;
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d = 0;
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i = 0;
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s = 0;
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}
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virtual ~OSC_Value ( ) { }
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virtual char type ( void ) const { return _type; }
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};
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class OSC_Float : public OSC_Value
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{
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public:
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float value ( void ) const { return f; }
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OSC_Float ( float v )
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{
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_type = 'f';
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f = v;
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}
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};
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class OSC_Int : public OSC_Value
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{
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public:
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int value ( void ) const { return i; }
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OSC_Int ( int v )
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{
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_type = 'i';
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i = v;
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}
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};
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class OSC_String : public OSC_Value
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{
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public:
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const char * value ( void ) const { return s; }
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OSC_String ( const char *v )
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{
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_type = 's';
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s = v;
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}
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};
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struct Parameter_Limits
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{
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float min;
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float max;
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float default_value;
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};
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class Endpoint;
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class Signal;
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struct Peer
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{
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bool _scanning;
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char *name;
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lo_address addr;
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std::list<Signal*> _signals;
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};
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struct Target
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{
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Peer *peer;
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// char *path;
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int signal_id;
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float value;
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};
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typedef int (*signal_handler) ( float value, void *user_data );
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class Signal
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{
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static int next_id;
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public:
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enum Direction {
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Input,
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Output,
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Bidirectional
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};
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private:
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Endpoint *_endpoint;
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int _id;
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char *_path;
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char *_documentation;
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float _value;
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std::list<Target*> _outgoing;
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Direction _direction;
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/* FIXME:
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In order to support signal mixing, the receiver must track
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each connected signal channel separately, and add the
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values together before invoking the handler.
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*/
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std::list<Target*> _incoming;
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signal_handler _handler;
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void *_user_data;
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public:
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Parameter_Limits _parameter_limits;
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Signal ( const char *path, Direction dir )
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{
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_direction = dir;
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_path = strdup( path );
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_id = ++next_id;
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_value = 0.0f;
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}
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~Signal ( )
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{
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free( _path );
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}
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bool connected ( void ) { return _outgoing.size() + _incoming.size(); }
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int id ( void ) { return _id; }
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Direction direction ( void ) { return _direction; }
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void parameter_limits ( float min, float max, float default_value )
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{
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_parameter_limits.min = min;
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_parameter_limits.max = max;
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_parameter_limits.default_value = default_value;
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_value = default_value;
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}
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Parameter_Limits& parameter_limits ( void ) { return _parameter_limits; }
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const char *path ( void ) { return _path; }
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/* publishes value to targets */
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void value ( float v );
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/* get current value */
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float value ( void ) { return _value; }
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friend class Endpoint;
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};
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class Method
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{
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char *_path;
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char *_typespec;
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char *_documentation;
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struct Parameter_Limits *_parameter_limits;
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public:
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const char *path ( void ) { return _path; }
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const char *typespec ( void ) { return _typespec; }
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Method ( );
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~Method ( );
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friend class Endpoint;
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};
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class Endpoint
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{
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static void error_handler(int num, const char *msg, const char *path);
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static int osc_reply ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
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static int osc_signal_lister ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
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static int osc_generic ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
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static int osc_sig_handler ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data );
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Thread _thread;
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// lo_server_thread _st;
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lo_server _server;
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std::list<Peer*> _peers;
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std::list<Signal*> _signals;
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std::list<Method*> _methods;
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static void *osc_thread ( void *arg );
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void osc_thread ( void );
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OSC::Signal *find_signal_by_id ( int id );
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Peer *find_peer_by_name ( const char *name );
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Peer *find_peer_by_address ( lo_address addr );
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static bool address_matches ( lo_address addr1, lo_address addr2 );
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static Target *find_target_by_peer_address ( std::list<Target*> *l, lo_address addr );
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public:
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void list_peers ( void (*callback) (const char *, const char *, int, void * ), void *v );
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int init ( int proto, const char *port = 0 );
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Endpoint ( );
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~Endpoint ( );
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bool connect_signal( OSC::Signal *s, const char *peer_name, int signal_id );
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Signal *add_signal ( const char *path, Signal::Direction dir, signal_handler handler, void *user_data );
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Method *add_method ( const char *path, const char *typespec, lo_method_handler handler, void *user_data, const char *argument_description );
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void del_method ( const char *path, const char *typespec );
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void del_method ( Method* method );
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void del_signal ( Signal *signal );
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void start ( void );
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void stop ( void );
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int port ( void ) const;
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char * url ( void ) const;
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void scan_peer ( const char *name, const char *url );
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void check ( void ) const;
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void wait ( int timeout ) const;
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void run ( void ) const;
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int send ( lo_address to, const char *path, std::list< OSC_Value > values );
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/* overloads for common message formats */
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int send ( lo_address to, const char *path );
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int send ( lo_address to, const char *path, float v );
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int send ( lo_address to, const char *path, double v );
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int send ( lo_address to, const char *path, int v );
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int send ( lo_address to, const char *path, long v );
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int send ( lo_address to, const char *path, int v1, int v2 );
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int send ( lo_address to, const char *path, int v1, float v2 );
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int send ( lo_address to, const char *path, const char *v );
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int send ( lo_address to, const char *path, const char *v1, float v2 );
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int send ( lo_address to, const char *path, const char *v1, int v2, int v3 );
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int send ( lo_address to, const char *path, const char *v1, const char *v2 );
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int send ( lo_address to, const char *path, const char *v1, const char *v2, const char *v3 );
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int send ( lo_address to, const char *path, const char *v1, int v2, int v3, int v4 );
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int send ( lo_address to, const char *path, const char *v1, const char *v2, int v3, int v4, int v5 );
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int send ( lo_address to, const char *path, const char *v1, int v2 );
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int send ( lo_address to, const char *path, int v1, const char *v2 );
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int send ( lo_address to, const char *path, const char *v1, const char *v2, const char *v3, int v4, int v5, int v6 );
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int send ( lo_address to, const char *path, const char *v1, int v2, const char *v3 );
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int send ( lo_address to, const char *path, int v1, const char *v2, const char *v3, const char *v4 );
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int send ( lo_address to, const char *path, const char *v1, int v2, const char *v3, const char *v4, const char *v5 );
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int send ( lo_address to, const char *path, const char *v1, const char *v2, const char *v3, const char *v4, const char *v5 );
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int send ( lo_address to, const char *path, const char *v1, const char *v2, const char *v3, const char *v4 );
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int send ( lo_address to, const char *path, lo_message msg );
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int send ( lo_address to, const char *path, const char *v1, const char *v2, int v3, float v4, float v5, float v6 );
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// can be used to point back to owning object.
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void *owner;
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};
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};
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/* helper macros for defining OSC handlers */
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#define OSC_NAME( name ) osc_ ## name
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#define OSC_DMSG() DMESSAGE( "Got OSC message: %s", path );
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#define OSC_HANDLER( name ) static int OSC_NAME( name ) ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data )
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#define OSC_REPLY_OK() ((OSC::Endpoint*)user_data)->send( lo_message_get_source( msg ), path, "ok" )
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#define OSC_REPLY( value ) ((OSC::Endpoint*)user_data)->send( lo_message_get_source( msg ), path, value )
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#define OSC_REPLY_ERR() ((OSC::Endpoint*)user_data)->send( lo_message_get_source( msg ), path, "err" )
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#define OSC_ENDPOINT() ((OSC::Endpoint*)user_data)
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