/*
    Copyright (C) 2011 Paul Davis
    Author: Sakari Bergen

    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.

*/

#include "ardour/capturing_processor.h"
#include "ardour/session.h"
#include "ardour/audioengine.h"

#include "pbd/i18n.h"

namespace ARDOUR {

CapturingProcessor::CapturingProcessor (Session & session, framecnt_t latency)
	: Processor (session, X_("capture point"))
	, block_size (AudioEngine::instance()->samples_per_cycle())
	, _latency (latency)
{
	realloc_buffers ();
}

CapturingProcessor::~CapturingProcessor()
{
}

int
CapturingProcessor::set_block_size (pframes_t nframes)
{
	block_size = nframes;
	realloc_buffers();
	return 0;
}

void
CapturingProcessor::run (BufferSet& bufs, framepos_t, framepos_t, double, pframes_t nframes, bool)
{
	if (!active()) {
		_delaybuffers.flush ();
		return;
	}
	for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
		for (uint32_t b = 0; b < bufs.count().get (*t); ++b) {
			_delaybuffers.delay (*t, b, capture_buffers.get (*t, b), bufs.get (*t, b), nframes, 0, 0);
		}
	}
}

bool
CapturingProcessor::configure_io (ChanCount in, ChanCount out)
{
	Processor::configure_io (in, out);
	_delaybuffers.set (out, _latency);
	realloc_buffers();
	return true;
}

bool
CapturingProcessor::can_support_io_configuration (const ChanCount& in, ChanCount& out)
{
	out = in;
	return true;
}

void
CapturingProcessor::realloc_buffers()
{
	capture_buffers.ensure_buffers (_configured_input, block_size);
	_delaybuffers.flush ();
}

XMLNode &
CapturingProcessor::state (bool full)
{
	XMLNode& node = Processor::state (full);

	node.add_property (X_("type"), X_("capture"));
	return node;
}

} // namespace ARDOUR
