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/*
* Copyright (C) 2016 Robin Gareus <robin@gareus.org>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __ardour_fixed_delay_h__
#define __ardour_fixed_delay_h__
#include <vector>
#include "ardour/buffer.h"
namespace ARDOUR {
class ChanCount;
class LIBARDOUR_API FixedDelay
{
public:
FixedDelay ();
~FixedDelay ();
void configure (const ChanCount& count, framecnt_t);
void set (const ChanCount& count, framecnt_t);
void delay (ARDOUR::DataType, uint32_t, Buffer&, const Buffer&, pframes_t, framecnt_t dst_offset = 0, framecnt_t src_offset = 0);
void flush() { _pending_flush = true; }
private:
framecnt_t _max_delay;
framecnt_t _delay;
bool _pending_flush;
ChanCount _count;
struct DelayBuffer {
public:
DelayBuffer () : buf (0), pos (0) {}
DelayBuffer (DataType dt, size_t capacity)
: buf (Buffer::create (dt, capacity)), pos (0) {}
~DelayBuffer () { delete buf; }
Buffer * buf;
framepos_t pos;
};
typedef std::vector<DelayBuffer*> BufferVec;
// Vector of vectors, indexed by DataType
std::vector<BufferVec> _buffers;
void ensure_buffers(DataType type, size_t num_buffers, size_t buffer_capacity);
void clear ();
};
} // namespace ARDOUR
#endif // __ardour_fixed_delay_h__
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