interpreter/preprocessor/faust-0.9.47mr3/architecture/osclib/faust/src/osc/OSCStream.cpp

   1 /*
   2   Copyright (c) Grame 2009
   3
   4   This library is free software; you can redistribute it and modify it under
   5   the terms of the GNU Library General Public License as published by the
   6   Free Software Foundation version 2 of the License, or any later version.
   7
   8   This library is distributed in the hope that it will be useful, but
   9   WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  10   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public License
  11   for more details.
  12
  13   You should have received a copy of the GNU Library General Public License
  14   along with this library; if not, write to the Free Software
  15   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA.
  16
  17   Grame Research Laboratory, 9, rue du Garet 69001 Lyon - France
  18   research@grame.fr
  19
  20 */
  21
  22 #include <iostream>
  23 #include "OSCStream.h"
  24
  25 using namespace std;
  26
  27 namespace oscfaust
  28 {
  29
  30 OSCStream* _oscout = 0;                         // OSC standard output stream
  31 OSCStream* _oscerr = 0;                         // OSC standard input stream
  32
  33 static UdpSocket* _socket = 0;          // a shared transmit socket
  34
  35
  36 //--------------------------------------------------------------------------
  37 OSCStream::OSCStream ()
  38         : fState(kIdle), fPort(1024), fAddress(kLocalhost), fOutStream(fBuffer, kOutBufferSize), fSocket(_socket)
  39 {
  40         if (!fSocket) cerr << "warning: incorrect OSCStream, _socket not initialized" << endl;
  41 }
  42
  43 //--------------------------------------------------------------------------
  44 bool OSCStream::start ()
  45 {
  46         _socket = new UdpSocket;
  47         _oscout = new OSCStream(_socket);
  48         _oscerr = new OSCStream(_socket);
  49         return (_socket && _oscout && _oscerr);
  50 }
  51
  52 //--------------------------------------------------------------------------
  53 void OSCStream::stop ()
  54 {
  55         delete _socket;
  56         delete _oscout;
  57         delete _oscerr;
  58         _oscout = _oscerr = 0;
  59         _socket = 0;
  60 }
  61
  62 //--------------------------------------------------------------------------
  63 void OSCStream::setAddress (const string& address)
  64 {
  65         IpEndpointName dst (address.c_str());
  66         setAddress (dst.address);
  67 }
  68
  69 //--------------------------------------------------------------------------
  70 OSCStream& OSCStream::start(const char * address)
  71 {
  72         stream().Clear();
  73         if (!stream().IsReady()) cerr << "OSCStream OutboundPacketStream not ready" << endl;
  74         stream() << osc::BeginMessage( address ) ;
  75         fState = kInProgress;
  76         return *this;
  77 }
  78
  79 //--------------------------------------------------------------------------
  80 OSCStream& OSCStream::end()
  81 {
  82         if (state() == kInProgress) {
  83                 stream() << osc::EndMessage;
  84                 if (fSocket)
  85                         fSocket->SendTo (IpEndpointName (fAddress, fPort), stream().Data(), stream().Size() );
  86                 fState = kIdle;
  87         }
  88         return *this;
  89 }
  90
  91 //--------------------------------------------------------------------------
  92 OSCStream& operator <<(OSCStream& s, const string& val)
  93 {
  94         s.stream() << val.c_str();
  95         return s;
  96 }
  97
  98 //--------------------------------------------------------------------------
  99 OSCStream& operator <<(OSCStream& s, const OSCErr& val)         { return s.start(val.fAddress); }
 100 OSCStream& operator <<(OSCStream& s, const OSCWarn& val)        { return s.start(val.fAddress); }
 101 OSCStream& operator <<(OSCStream& s, const OSCStart& val)       { return s.start(val.fAddress); }
 102 OSCStream& operator <<(OSCStream& s, const OSCEnd val)          { return s.end(); }
 103
 104 } // end namespace
 105