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/*
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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ardour_internal_return_h__
#define __ardour_internal_return_h__
#include <sigc++/signal.h>
#include "ardour/ardour.h"
#include "ardour/return.h"
#include "ardour/buffer_set.h"
namespace ARDOUR {
class InternalReturn : public Return
{
public:
InternalReturn (Session&);
InternalReturn (Session&, const XMLNode&);
bool visible() const;
XMLNode& state(bool full);
XMLNode& get_state(void);
int set_state(const XMLNode&, int version);
void run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes);
bool configure_io (ChanCount in, ChanCount out);
bool can_support_io_configuration (const ChanCount& in, ChanCount& out) const;
void set_block_size (nframes_t);
BufferSet* get_buffers();
void release_buffers();
static sigc::signal<void,nframes_t> CycleStart;
private:
BufferSet buffers;
gint user_count; /* atomic */
void allocate_buffers (nframes_t);
void cycle_start (nframes_t);
};
} // namespace ARDOUR
#endif /* __ardour_internal_return_h__ */
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