better error message if VST SDK is not installed and neeed
[ardour.git] / libs / ardour / io.cc
index f38f93867502e5861a9805a704652b0105d0d2d2..77f3a33ff2cc74e9ba16368f2e5cec6dd62f702b 100644 (file)
@@ -58,10 +58,7 @@ using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
 
-
-static float current_automation_version_number = 1.0;
-
-nframes_t IO::_automation_interval = 0;
+nframes_t    IO::_automation_interval = 0;
 const string IO::state_node_name = "IO";
 bool         IO::connecting_legal = false;
 bool         IO::ports_legal = false;
@@ -107,7 +104,7 @@ IO::IO (Session& s, string name,
        : _session (s),
          _name (name),
          _default_type(default_type),
-         _gain_control (*this),
+         _gain_control (X_("gaincontrol"), *this),
          _gain_automation_curve (0.0, 2.0, 1.0),
          _input_minimum (input_min),
          _input_maximum (input_max),
@@ -126,7 +123,8 @@ IO::IO (Session& s, string name,
        deferred_state = 0;
 
        apply_gain_automation = false;
-
+       _ignore_gain_on_deliver = false;
+       
        last_automation_snapshot = 0;
 
        _gain_automation_state = Off;
@@ -138,11 +136,43 @@ IO::IO (Session& s, string name,
                Glib::Mutex::Lock guard (m_meter_signal_lock);
                m_meter_connection = Meter.connect (mem_fun (*this, &IO::meter));
        }
+
+       _session.add_controllable (&_gain_control);
 }
 
-IO::~IO ()
+IO::IO (Session& s, const XMLNode& node, DataType dt)
+       : _session (s),
+         _default_type (dt),
+         _gain_control (X_("gaincontrol"), *this),
+         _gain_automation_curve (0, 0, 0) // all reset in set_state()
 {
+       _panner = 0;
+       deferred_state = 0;
+       no_panner_reset = false;
+       _desired_gain = 1.0;
+       _gain = 1.0;
+       _input_connection = 0;
+       _output_connection = 0;
+       _ninputs = 0;
+       _noutputs = 0;
+
+       apply_gain_automation = false;
+       _ignore_gain_on_deliver = false;
+
+       set_state (node);
+
+       {
+               // IO::Meter is emitted from another thread so the
+               // Meter signal must be protected.
+               Glib::Mutex::Lock guard (m_meter_signal_lock);
+               m_meter_connection = Meter.connect (mem_fun (*this, &IO::meter));
+       }
+
+       _session.add_controllable (&_gain_control);
+}
 
+IO::~IO ()
+{
        Glib::Mutex::Lock guard (m_meter_signal_lock);
        
        Glib::Mutex::Lock lm (io_lock);
@@ -434,7 +464,7 @@ IO::deliver_output_no_pan (vector<Sample *>& bufs, uint32_t nbufs, nframes_t nfr
        gain_t dg;
        gain_t old_gain = _gain;
 
-       if (apply_gain_automation) {
+       if (apply_gain_automation || _ignore_gain_on_deliver) {
 
                /* gain has already been applied by automation code. do nothing here except
                   speed quietning.
@@ -483,13 +513,21 @@ IO::deliver_output_no_pan (vector<Sample *>& bufs, uint32_t nbufs, nframes_t nfr
                dst = (*o)->get_buffer (nframes) + offset;
                src = bufs[min(nbufs,i)];
 
-               if (dg != _gain || actual_gain == 1.0f) {
-                       memcpy (dst, src, sizeof (Sample) * nframes);
-               } else if (actual_gain == 0.0f) {
-                       memset (dst, 0, sizeof (Sample) * nframes);
-               } else {
+               if (_name == "Audio 2") {
                        for (nframes_t x = 0; x < nframes; ++x) {
-                               dst[x] = src[x] * actual_gain;
+                               dst[x] = 0.7;
+                       }
+
+               } else {
+                       
+                       if (dg != _gain || actual_gain == 1.0f) {
+                               memcpy (dst, src, sizeof (Sample) * nframes);
+                       } else if (actual_gain == 0.0f) {
+                               memset (dst, 0, sizeof (Sample) * nframes);
+                       } else {
+                               for (nframes_t x = 0; x < nframes; ++x) {
+                                       dst[x] = src[x] * actual_gain;
+                               }
                        }
                }
                
@@ -501,7 +539,7 @@ IO::deliver_output_no_pan (vector<Sample *>& bufs, uint32_t nbufs, nframes_t nfr
                _gain = dg;
        }
 
-       if (apply_gain_automation) {
+       if (apply_gain_automation || _ignore_gain_on_deliver) {
                _gain = old_gain;
        }
 }
@@ -1431,7 +1469,7 @@ IO::state (bool full_state)
        Glib::Mutex::Lock lm (io_lock);
 
        node->add_property("name", _name);
-       id().print (buf);
+       id().print (buf, sizeof (buf));
        node->add_property("id", buf);
 
        str = "";
@@ -1513,6 +1551,7 @@ IO::state (bool full_state)
        }
 
        node->add_child_nocopy (_panner->state (full_state));
+       node->add_child_nocopy (_gain_control.get_state ());
 
        snprintf (buf, sizeof(buf), "%2.12f", gain());
        node->add_property ("gain", buf);
@@ -1528,66 +1567,20 @@ IO::state (bool full_state)
        /* automation */
 
        if (full_state) {
+
+               XMLNode* autonode = new XMLNode (X_("Automation"));
+               autonode->add_child_nocopy (get_automation_state());
+               node->add_child_nocopy (*autonode);
+
                snprintf (buf, sizeof (buf), "0x%x", (int) _gain_automation_curve.automation_state());
        } else {
                /* never store anything except Off for automation state in a template */
                snprintf (buf, sizeof (buf), "0x%x", ARDOUR::Off); 
        }
-       node->add_property ("automation-state", buf);
-       snprintf (buf, sizeof (buf), "0x%x", (int) _gain_automation_curve.automation_style());
-       node->add_property ("automation-style", buf);
-
-       /* XXX same for pan etc. */
 
        return *node;
 }
 
-int
-IO::connecting_became_legal ()
-{
-       int ret;
-
-       if (pending_state_node == 0) {
-               fatal << _("IO::connecting_became_legal() called without a pending state node") << endmsg;
-               /*NOTREACHED*/
-               return -1;
-       }
-
-       connection_legal_c.disconnect ();
-
-       ret = make_connections (*pending_state_node);
-
-       if (ports_legal) {
-               delete pending_state_node;
-               pending_state_node = 0;
-       }
-
-       return ret;
-}
-
-int
-IO::ports_became_legal ()
-{
-       int ret;
-
-       if (pending_state_node == 0) {
-               fatal << _("IO::ports_became_legal() called without a pending state node") << endmsg;
-               /*NOTREACHED*/
-               return -1;
-       }
-
-       port_legal_c.disconnect ();
-
-       ret = create_ports (*pending_state_node);
-
-       if (connecting_legal) {
-               delete pending_state_node;
-               pending_state_node = 0;
-       }
-
-       return ret;
-}
-
 int
 IO::set_state (const XMLNode& node)
 {
@@ -1606,7 +1599,7 @@ IO::set_state (const XMLNode& node)
 
        if ((prop = node.property ("name")) != 0) {
                _name = prop->value();
-               _panner->set_name (_name);
+               /* used to set panner name with this, but no more */
        } 
 
        if ((prop = node.property ("id")) != 0) {
@@ -1626,26 +1619,29 @@ IO::set_state (const XMLNode& node)
                _gain = _desired_gain;
        }
 
+       if ((prop = node.property ("automation-state")) != 0 || (prop = node.property ("automation-style")) != 0) {
+               /* old school automation handling */
+       }
+
        for (iter = node.children().begin(); iter != node.children().end(); ++iter) {
+
                if ((*iter)->name() == "Panner") {
+                       if (_panner == 0) {
+                               _panner = new Panner (_name, _session);
+                       }
                        _panner->set_state (**iter);
                }
-       }
-
-       if ((prop = node.property ("automation-state")) != 0) {
 
-               long int x;
-               x = strtol (prop->value().c_str(), 0, 16);
-               set_gain_automation_state (AutoState (x));
-       }
+               if ((*iter)->name() == X_("Automation")) {
 
-       if ((prop = node.property ("automation-style")) != 0) {
+                       set_automation_state (*(*iter)->children().front());
+               }
 
-              long int x;
-               x = strtol (prop->value().c_str(), 0, 16);
-               set_gain_automation_style (AutoStyle (x));
+               if ((*iter)->name() == X_("gaincontrol")) {
+                       _gain_control.set_state (**iter);
+               }
        }
-       
+
        if (ports_legal) {
 
                if (create_ports (node)) {
@@ -1678,9 +1674,146 @@ IO::set_state (const XMLNode& node)
                pending_state_node = new XMLNode (node);
        }
 
+       last_automation_snapshot = 0;
+
+       return 0;
+}
+
+int
+IO::set_automation_state (const XMLNode& node)
+{
+       return _gain_automation_curve.set_state (node);
+}
+
+XMLNode&
+IO::get_automation_state ()
+{
+       return (_gain_automation_curve.get_state ());
+}
+
+int
+IO::load_automation (string path)
+{
+       string fullpath;
+       ifstream in;
+       char line[128];
+       uint32_t linecnt = 0;
+       float version;
+       LocaleGuard lg (X_("POSIX"));
+
+       fullpath = _session.automation_dir();
+       fullpath += path;
+
+       in.open (fullpath.c_str());
+
+       if (!in) {
+               fullpath = _session.automation_dir();
+               fullpath += _session.snap_name();
+               fullpath += '-';
+               fullpath += path;
+
+               in.open (fullpath.c_str());
+
+               if (!in) {
+                       error << string_compose(_("%1: cannot open automation event file \"%2\""), _name, fullpath) << endmsg;
+                       return -1;
+               }
+       }
+
+       clear_automation ();
+
+       while (in.getline (line, sizeof(line), '\n')) {
+               char type;
+               jack_nframes_t when;
+               double value;
+
+               if (++linecnt == 1) {
+                       if (memcmp (line, "version", 7) == 0) {
+                               if (sscanf (line, "version %f", &version) != 1) {
+                                       error << string_compose(_("badly formed version number in automation event file \"%1\""), path) << endmsg;
+                                       return -1;
+                               }
+                       } else {
+                               error << string_compose(_("no version information in automation event file \"%1\""), path) << endmsg;
+                               return -1;
+                       }
+
+                       continue;
+               }
+
+               if (sscanf (line, "%c %" PRIu32 " %lf", &type, &when, &value) != 3) {
+                       warning << string_compose(_("badly formatted automation event record at line %1 of %2 (ignored)"), linecnt, path) << endmsg;
+                       continue;
+               }
+
+               switch (type) {
+               case 'g':
+                       _gain_automation_curve.fast_simple_add (when, value);
+                       break;
+
+               case 's':
+                       break;
+
+               case 'm':
+                       break;
+
+               case 'p':
+                       /* older (pre-1.0) versions of ardour used this */
+                       break;
+
+               default:
+                       warning << _("dubious automation event found (and ignored)") << endmsg;
+               }
+       }
+
        return 0;
 }
 
+int
+IO::connecting_became_legal ()
+{
+       int ret;
+
+       if (pending_state_node == 0) {
+               fatal << _("IO::connecting_became_legal() called without a pending state node") << endmsg;
+               /*NOTREACHED*/
+               return -1;
+       }
+
+       connection_legal_c.disconnect ();
+
+       ret = make_connections (*pending_state_node);
+
+       if (ports_legal) {
+               delete pending_state_node;
+               pending_state_node = 0;
+       }
+
+       return ret;
+}
+int
+IO::ports_became_legal ()
+{
+       int ret;
+
+       if (pending_state_node == 0) {
+               fatal << _("IO::ports_became_legal() called without a pending state node") << endmsg;
+               /*NOTREACHED*/
+               return -1;
+       }
+
+       port_legal_c.disconnect ();
+
+       ret = create_ports (*pending_state_node);
+
+       if (connecting_legal) {
+               delete pending_state_node;
+               pending_state_node = 0;
+       }
+
+       return ret;
+}
+
 int
 IO::create_ports (const XMLNode& node)
 {
@@ -2308,25 +2441,6 @@ IO::setup_peak_meters ()
        }
 }
 
-UndoAction
-IO::get_memento() const
-{
-  return sigc::bind (mem_fun (*(const_cast<IO *>(this)), &StateManager::use_state), _current_state_id);
-}
-
-Change
-IO::restore_state (StateManager::State& state)
-{
-       return Change (0);
-}
-
-StateManager::State*
-IO::state_factory (std::string why) const
-{
-       StateManager::State* state = new StateManager::State (why);
-       return state;
-}
-
 /**
     Update the peak meters.
 
@@ -2376,118 +2490,6 @@ IO::meter ()
        }
 }
 
-int
-IO::save_automation (const string& path)
-{
-       string fullpath;
-       ofstream out;
-
-       fullpath = _session.automation_dir();
-       fullpath += path;
-
-       out.open (fullpath.c_str());
-
-       if (!out) {
-               error << string_compose(_("%1: could not open automation event file \"%2\""), _name, fullpath) << endmsg;
-               return -1;
-       }
-
-       out << X_("version ") << current_automation_version_number << endl;
-
-       /* XXX use apply_to_points to get thread safety */
-       
-       for (AutomationList::iterator i = _gain_automation_curve.begin(); i != _gain_automation_curve.end(); ++i) {
-               out << "g " << (nframes_t) floor ((*i)->when) << ' ' << (*i)->value << endl;
-       }
-
-       _panner->save ();
-
-       return 0;
-}
-
-int
-IO::load_automation (const string& path)
-{
-       string fullpath;
-       ifstream in;
-       char line[128];
-       uint32_t linecnt = 0;
-       float version;
-       LocaleGuard lg (X_("POSIX"));
-
-       fullpath = _session.automation_dir();
-       fullpath += path;
-
-       in.open (fullpath.c_str());
-
-       if (!in) {
-               fullpath = _session.automation_dir();
-               fullpath += _session.snap_name();
-               fullpath += '-';
-               fullpath += path;
-               in.open (fullpath.c_str());
-               if (!in) {
-                       error << string_compose(_("%1: cannot open automation event file \"%2\" (%2)"), _name, fullpath, strerror (errno)) << endmsg;
-                       return -1;
-               }
-       }
-
-       clear_automation ();
-
-       while (in.getline (line, sizeof(line), '\n')) {
-               char type;
-               nframes_t when;
-               double value;
-
-               if (++linecnt == 1) {
-                       if (memcmp (line, "version", 7) == 0) {
-                               if (sscanf (line, "version %f", &version) != 1) {
-                                       error << string_compose(_("badly formed version number in automation event file \"%1\""), path) << endmsg;
-                                       return -1;
-                               }
-                       } else {
-                               error << string_compose(_("no version information in automation event file \"%1\""), path) << endmsg;
-                               return -1;
-                       }
-
-                       if (version != current_automation_version_number) {
-                               error << string_compose(_("mismatched automation event file version (%1)"), version) << endmsg;
-                               return -1;
-                       }
-
-                       continue;
-               }
-
-               if (sscanf (line, "%c %" PRIu32 " %lf", &type, &when, &value) != 3) {
-                       warning << string_compose(_("badly formatted automation event record at line %1 of %2 (ignored)"), linecnt, path) << endmsg;
-                       continue;
-               }
-
-               switch (type) {
-               case 'g':
-                       _gain_automation_curve.add (when, value, true);
-                       break;
-
-               case 's':
-                       break;
-
-               case 'm':
-                       break;
-
-               case 'p':
-                       /* older (pre-1.0) versions of ardour used this */
-                       break;
-
-               default:
-                       warning << _("dubious automation event found (and ignored)") << endmsg;
-               }
-       }
-
-       _gain_automation_curve.save_state (_("loaded from disk"));
-
-       return 0;
-}
-       
 void
 IO::clear_automation ()
 {
@@ -2626,10 +2628,6 @@ IO::transport_stopped (nframes_t frame)
 
        if (_gain_automation_curve.automation_state() != Off) {
                
-               if (gain_automation_recording()) {
-                       _gain_automation_curve.save_state (_("automation write/touch"));
-               }
-
                /* the src=0 condition is a special signal to not propagate 
                   automation gain changes into the mix group when locating.
                */