Inrease the export "chunk size" to speed it up over 10% at least in some situations

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

diff --git a/libs/ardour/bundle.cc b/libs/ardour/bundle.cc
index d8666c5bbba8d9d5424085185b9e4dc1bec09780..5040882b7a32fc0e334a4516778e4ab6b10c9765 100644 (file)
--- a/libs/ardour/bundle.cc
+++ b/libs/ardour/bundle.cc
@@ -19,12 +19,9 @@
 
 #include <algorithm>
 
-#include "pbd/failed_constructor.h"
-#include "ardour/ardour.h"
 #include "ardour/bundle.h"
 #include "ardour/audioengine.h"
 #include "ardour/port.h"
-#include "pbd/xml++.h"
 
 #include "i18n.h"
 
@@ -440,6 +437,34 @@ Bundle::connected_to (boost::shared_ptr<Bundle> other, AudioEngine & engine)
        return true;
 }
 
+/** This must not be called in code executed as a response to a JACK event,
+ *  as it uses jack_port_get_all_connections().
+ *  @return true if any of this bundle's channels are connected to anything.
+ */
+bool
+Bundle::connected_to_anything (AudioEngine& engine)
+{
+       for (uint32_t i = 0; i < nchannels().n_total(); ++i) {
+               Bundle::PortList const & ports = channel_ports (i);
+
+               for (uint32_t j = 0; j < ports.size(); ++j) {
+                       /* ports[j] may not be an Ardour port, so use JACK directly
+                          rather than doing it with Port.
+                       */
+                       jack_port_t* jp = jack_port_by_name (engine.jack(), ports[j].c_str());
+                       if (jp) {
+                               const char ** c = jack_port_get_all_connections (engine.jack(), jp);
+                               if (c) {
+                                       jack_free (c);
+                                       return true;
+                               }
+                       }
+               }
+       }
+
+       return false;
+}
+
 void
 Bundle::set_ports_are_inputs ()
 {
@@ -517,3 +542,73 @@ Bundle::operator== (Bundle const & other)
 {
        return _channel == other._channel;
 }
+
+/** Given an index of a channel as the nth channel of a particular type,
+ *  return an index of that channel when considering channels of all types.
+ *
+ *  e.g. given a bundle with channels:
+ *          fred   [audio]
+ *          jim    [audio]
+ *          sheila [midi]
+ *
+ * If t == MIDI and c == 0, then we would return 2, as 2 is the index of the
+ * 0th MIDI channel.
+ *
+ * If t == NIL, we just return c.
+ */
+
+uint32_t
+Bundle::type_channel_to_overall (DataType t, uint32_t c) const
+{
+       if (t == DataType::NIL) {
+               return c;
+       }
+       
+       Glib::Mutex::Lock lm (_channel_mutex);
+
+       vector<Channel>::const_iterator i = _channel.begin ();
+
+       uint32_t o = 0;
+
+       while (1) {
+
+               assert (i != _channel.end ());
+
+               if (i->type != t) {
+                       ++i;
+               } else {
+                       if (c == 0) {
+                               return o;
+                       }
+                       --c;
+               }
+
+               ++o;
+       }
+
+       /* NOTREACHED */
+       return -1;
+}
+
+/** Perform the reverse of type_channel_to_overall */
+uint32_t
+Bundle::overall_channel_to_type (DataType t, uint32_t c) const
+{
+       if (t == DataType::NIL) {
+               return c;
+       }
+       
+       Glib::Mutex::Lock lm (_channel_mutex);
+
+       uint32_t s = 0;
+       
+       vector<Channel>::const_iterator i = _channel.begin ();
+       for (uint32_t j = 0; j < c; ++j) {
+               if (i->type == t) {
+                       ++s;
+               }
+               ++i;
+       }
+
+       return s;
+}