VST report audioMasterPinConnected according to Pin Management

[ardour.git] / libs / ardour / plugin_insert.cc

diff --git a/libs/ardour/plugin_insert.cc b/libs/ardour/plugin_insert.cc
index 55b592561cf3bac2925a9e3aa6be7a071a58479f..a1c2e4b165c029d0360f92846ed62365dd0f1da6 100644 (file)
--- a/libs/ardour/plugin_insert.cc
+++ b/libs/ardour/plugin_insert.cc
@@ -80,7 +80,7 @@ PluginInsert::PluginInsert (Session& s, boost::shared_ptr<Plugin> plug)
                add_plugin (plug);
                create_automatable_parameters ();
                const ChanCount& sc (sidechain_input_pins ());
-               if (sc.n_total () > 0) {
+               if (sc.n_audio () > 0) {
                        add_sidechain (sc.n_audio ());
                }
        }
@@ -166,9 +166,13 @@ PluginInsert::add_sidechain (uint32_t n_audio)
        if (_sidechain) {
                return false;
        }
-       // TODO add route-name, plugin name and shorten.. (plugin name can be long and conatain odd chars)
-       std::string n = "Sidechain " + id().to_s(); /// XXX
-       SideChain *sc = new SideChain (_session, n);
+       std::ostringstream n;
+       if (n_audio > 0) {
+               n << "Sidechain " << Session::next_name_id ();
+       } else {
+               n << "TO BE RESET FROM XML";
+       }
+       SideChain *sc = new SideChain (_session, n.str ());
        _sidechain = boost::shared_ptr<SideChain> (sc);
        _sidechain->activate ();
        for (uint32_t n = 0; n < n_audio; ++n) {
@@ -331,6 +335,11 @@ PluginInsert::has_no_audio_inputs() const
        return _plugins[0]->get_info()->n_inputs.n_audio() == 0;
 }
 
+framecnt_t
+PluginInsert::plugin_latency () const {
+       return _plugins.front()->signal_latency ();
+}
+
 bool
 PluginInsert::is_midi_instrument() const
 {
@@ -472,11 +481,28 @@ PluginInsert::connect_and_run (BufferSet& bufs, pframes_t nframes, framecnt_t of
        PinMappings in_map (_in_map);
        PinMappings out_map (_out_map);
        ChanMapping thru_map (_thru_map);
-       if (_mapping_changed) {
+       if (_mapping_changed) { // ToDo use a counters, increment until match.
                _no_inplace = check_inplace ();
                _mapping_changed = false;
        }
 
+       if (_latency_changed) {
+               /* delaylines are configured with the max possible latency (as reported by the plugin)
+                * so this won't allocate memory (unless the plugin lied about its max latency)
+                * It may still 'click' though, since the fixed delaylines are not de-clicked.
+                * Then again plugin-latency changes are not click-free to begin with.
+                *
+                * This is also worst case, there is currently no concept of per-stream latency.
+                *
+                * e.g.  Two identical latent plugins:
+                *   1st plugin: process left (latent), bypass right.
+                *   2nd plugin: bypass left, process right (latent).
+                * -> currently this yields 2 times latency of the plugin,
+                */
+               _latency_changed = false;
+               _delaybuffers.set (ChanCount::max(bufs.count(), _configured_out), plugin_latency ());
+       }
+
        if (_match.method == Split && !_no_inplace) {
                // TODO: also use this optimization if one source-buffer
                // feeds _all_ *connected* inputs.
@@ -600,7 +626,7 @@ PluginInsert::connect_and_run (BufferSet& bufs, pframes_t nframes, framecnt_t of
                                uint32_t in_idx = thru_map.get (*t, out, &valid);
                                if (valid) {
                                        uint32_t m = out + natural_input_streams ().get (*t);
-                                       inplace_bufs.get (*t, m).read_from (bufs.get (*t, in_idx), nframes, offset, offset);
+                                       _delaybuffers.delay (*t, out, inplace_bufs.get (*t, m), bufs.get (*t, in_idx), nframes, offset, offset);
                                        used_outputs.set (*t, out, 1); // mark as used
                                }
                        }
@@ -1419,6 +1445,9 @@ PluginInsert::configure_io (ChanCount in, ChanCount out)
                PluginIoReConfigure (); /* EMIT SIGNAL */
        }
 
+       _delaybuffers.configure (_configured_out, _plugins.front()->max_latency ());
+       _latency_changed = true;
+
        // we don't know the analysis window size, so we must work with the
        // current buffer size here. each request for data fills in these
        // buffers and the analyser makes sure it gets enough data for the
@@ -2395,6 +2424,7 @@ PluginInsert::add_plugin (boost::shared_ptr<Plugin> plugin)
                plugin->ParameterChangedExternally.connect_same_thread (*this, boost::bind (&PluginInsert::parameter_changed_externally, this, _1, _2));
                plugin->StartTouch.connect_same_thread (*this, boost::bind (&PluginInsert::start_touch, this, _1));
                plugin->EndTouch.connect_same_thread (*this, boost::bind (&PluginInsert::end_touch, this, _1));
+               plugin->LatencyChanged.connect_same_thread (*this, boost::bind (&PluginInsert::latency_changed, this, _1, _2));
                // cache sidechain ports
                _cached_sidechain_pins.reset ();
                const ChanCount& nis (plugin->get_info()->n_inputs);
@@ -2407,6 +2437,11 @@ PluginInsert::add_plugin (boost::shared_ptr<Plugin> plugin)
                        }
                }
        }
+
+       boost::shared_ptr<VSTPlugin> vst = boost::dynamic_pointer_cast<VSTPlugin> (plugin);
+       if (vst) {
+               vst->set_insert (this, _plugins.size ());
+       }
        _plugins.push_back (plugin);
 }
 
@@ -2434,6 +2469,13 @@ PluginInsert::monitoring_changed ()
        }
 }
 
+void
+PluginInsert::latency_changed (framecnt_t, framecnt_t)
+{
+       // this is called in RT context, LatencyChanged is emitted after run()
+       _latency_changed = true;
+}
+
 void
 PluginInsert::start_touch (uint32_t param_id)
 {