/*
- Copyright (C) 2009 Paul Davis
+ Copyright (C) 2009 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <glibmm/thread.h>
-
-#include "pbd/failed_constructor.h"
+#include <glibmm/threads.h>
#include "ardour/internal_return.h"
-#include "ardour/mute_master.h"
-#include "ardour/session.h"
+#include "ardour/internal_send.h"
using namespace std;
using namespace ARDOUR;
-sigc::signal<void,nframes_t> InternalReturn::CycleStart;
-
InternalReturn::InternalReturn (Session& s)
: Return (s, true)
- , user_count (0)
-{
- CycleStart.connect (mem_fun (*this, &InternalReturn::cycle_start));
-}
-
-InternalReturn::InternalReturn (Session& s, const XMLNode& node)
- : Return (s, node, true)
- , user_count (0)
{
- CycleStart.connect (mem_fun (*this, &InternalReturn::cycle_start));
+ _display_to_user = false;
}
void
-InternalReturn::run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes)
+InternalReturn::run (BufferSet& bufs, framepos_t /*start_frame*/, framepos_t /*end_frame*/, pframes_t nframes, bool)
{
- if (user_count == 0) {
- /* nothing to do - nobody is feeding us anything */
+ if (!_active && !_pending_active) {
return;
}
- /* XXX this should be merge() */
-
- bufs.merge_from (buffers, nframes);
-}
-
-bool
-InternalReturn::configure_io (ChanCount in, ChanCount out)
-{
- IOProcessor::configure_io (in, out);
- allocate_buffers (_session.get_block_size());
- return true;
-}
-
-void
-InternalReturn::set_block_size (nframes_t nframes)
-{
- allocate_buffers (nframes);
-}
-
-void
-InternalReturn::allocate_buffers (nframes_t nframes)
-{
- buffers.ensure_buffers (DataType::AUDIO, _configured_input.n_audio(), nframes);
- buffers.ensure_buffers (DataType::MIDI, _configured_input.n_midi(), nframes);
-}
+ Glib::Threads::Mutex::Lock lm (_sends_mutex, Glib::Threads::TRY_LOCK);
+
+ if (lm.locked ()) {
+ for (list<InternalSend*>::iterator i = _sends.begin(); i != _sends.end(); ++i) {
+ if ((*i)->active ()) {
+ bufs.merge_from ((*i)->get_buffers(), nframes);
+ }
+ }
+ }
-BufferSet*
-InternalReturn::get_buffers ()
-{
- Glib::Mutex::Lock lm (_session.engine().process_lock());
- user_count++;
- return &buffers;
+ _active = _pending_active;
}
void
-InternalReturn::release_buffers ()
+InternalReturn::add_send (InternalSend* send)
{
- Glib::Mutex::Lock lm (_session.engine().process_lock());
- if (user_count) {
- user_count--;
- }
+ Glib::Threads::Mutex::Lock lm (_sends_mutex);
+ _sends.push_back (send);
}
void
-InternalReturn::cycle_start (nframes_t nframes)
+InternalReturn::remove_send (InternalSend* send)
{
- /* called from process cycle - no lock necessary */
- if (user_count) {
- /* don't bother with this if nobody is going to feed us anything */
- buffers.silence (nframes, 0);
- }
+ Glib::Threads::Mutex::Lock lm (_sends_mutex);
+ _sends.remove (send);
}
XMLNode&
return state (true);
}
-int
-InternalReturn::set_state (const XMLNode& node)
+bool
+InternalReturn::can_support_io_configuration (const ChanCount& in, ChanCount& out)
{
- return Return::set_state (node);
+ out = in;
+ return true;
}
-bool
-InternalReturn::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
+bool
+InternalReturn::configure_io (ChanCount in, ChanCount out)
{
- out = in;
+ IOProcessor::configure_io (in, out);
return true;
}
-
-
-