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/*
Copyright (C) 2009 Paul Davis
Author: Dave Robillard
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_chan_mapping_h__
#define __ardour_chan_mapping_h__
#include <map>
#include <cassert>
#include <ostream>
#include <utility>
#include "ardour/data_type.h"
#include "ardour/chan_count.h"
namespace ARDOUR {
/** A mapping from one set of channels to another
* (e.g. how to 'connect' two BufferSets).
*/
class ChanMapping {
public:
ChanMapping() {}
ChanMapping(ARDOUR::ChanCount identity);
uint32_t get(DataType t, uint32_t from);
void set(DataType t, uint32_t from, uint32_t to);
void offset_from(DataType t, int32_t delta);
void offset_to(DataType t, int32_t delta);
typedef std::map<uint32_t, uint32_t> TypeMapping;
typedef std::map<DataType, TypeMapping> Mappings;
Mappings mappings() { return _mappings; }
const Mappings mappings() const { return _mappings; }
private:
Mappings _mappings;
};
} // namespace ARDOUR
std::ostream& operator<<(std::ostream& o, const ARDOUR::ChanMapping& m);
#endif // __ardour_chan_mapping_h__
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