2 Copyright (C) 2009 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_internal_return_h__
21 #define __ardour_internal_return_h__
23 #include <sigc++/signal.h>
25 #include "ardour/ardour.h"
26 #include "ardour/return.h"
27 #include "ardour/buffer_set.h"
31 class InternalReturn : public Return
34 InternalReturn (Session&);
35 InternalReturn (Session&, const XMLNode&);
39 XMLNode& state(bool full);
40 XMLNode& get_state(void);
41 int set_state(const XMLNode&, int version = 3000);
43 void run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes);
44 bool configure_io (ChanCount in, ChanCount out);
45 bool can_support_io_configuration (const ChanCount& in, ChanCount& out) const;
46 void set_block_size (nframes_t);
48 BufferSet* get_buffers();
49 void release_buffers();
51 static sigc::signal<void,nframes_t> CycleStart;
55 gint user_count; /* atomic */
56 void allocate_buffers (nframes_t);
57 void cycle_start (nframes_t);
62 #endif /* __ardour_internal_return_h__ */