/*
- 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
#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;
+PBD::Signal1<void, pframes_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));
+ CycleStart.connect_same_thread (*this, boost::bind (&InternalReturn::cycle_start, this, _1));
+ _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)
{
- /* XXX no lock here, just atomic fetch */
-
- if (g_atomic_int_get(&user_count) == 0) {
- /* nothing to do - nobody is feeding us anything */
+ if (!_active && !_pending_active) {
return;
}
- bufs.merge_from (buffers, nframes);
+ /* _sends is only modified with the process lock held, so this is ok, I think */
+
+ for (list<InternalSend*>::iterator i = _sends.begin(); i != _sends.end(); ++i) {
+ if ((*i)->active ()) {
+ bufs.merge_from ((*i)->get_buffers(), nframes);
+ }
+ }
+
+ _active = _pending_active;
}
bool
return true;
}
-void
-InternalReturn::set_block_size (nframes_t nframes)
+int
+InternalReturn::set_block_size (pframes_t nframes)
{
allocate_buffers (nframes);
+ return 0;
}
void
-InternalReturn::allocate_buffers (nframes_t nframes)
+InternalReturn::allocate_buffers (pframes_t nframes)
{
buffers.ensure_buffers (_configured_input, nframes);
buffers.set_count (_configured_input);
}
-BufferSet*
-InternalReturn::get_buffers ()
+void
+InternalReturn::add_send (InternalSend* send)
{
Glib::Mutex::Lock lm (_session.engine().process_lock());
- /* use of g_atomic here is just for code consistency - its protected by the lock
- for writing.
- */
- g_atomic_int_inc (&user_count);
- return &buffers;
+ _sends.push_back (send);
}
void
-InternalReturn::release_buffers ()
+InternalReturn::remove_send (InternalSend* send)
{
Glib::Mutex::Lock lm (_session.engine().process_lock());
- if (user_count) {
- /* use of g_atomic here is just for code consistency - its protected by the lock
- for writing.
- */
- (void) g_atomic_int_dec_and_test (&user_count);
- }
+ _sends.remove (send);
}
void
-InternalReturn::cycle_start (nframes_t nframes)
+InternalReturn::cycle_start (pframes_t nframes)
{
/* called from process cycle - no lock necessary */
- if (user_count) {
+ if (!_sends.empty ()) {
/* don't bother with this if nobody is going to feed us anything */
buffers.silence (nframes, 0);
}
}
int
-InternalReturn::set_state (const XMLNode& node)
+InternalReturn::set_state (const XMLNode& node, int version)
{
- return Return::set_state (node);
+ return Return::set_state (node, version);
}
-bool
+bool
InternalReturn::can_support_io_configuration (const ChanCount& in, ChanCount& out) const
{
out = in;
return true;
}
-bool
-InternalReturn::visible () const
-{
- return false;
-}
+