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/*
Copyright (C) 2010 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.
*/
#include <iostream>
#include "ardour/buffer_manager.h"
#include "ardour/thread_buffers.h"
using namespace ARDOUR;
using namespace PBD;
RingBufferNPT<ThreadBuffers*>* BufferManager::thread_buffers = 0;
void
BufferManager::init (uint32_t size)
{
thread_buffers = new ThreadBufferFIFO (size+1); // must be one larger than requested
/* and populate with actual ThreadBuffers
*/
std::cerr << "BM: initial read space: " << thread_buffers->read_space() << std::endl;
for (uint32_t n = 0; n < size; ++n) {
ThreadBuffers* ts = new ThreadBuffers;
thread_buffers->write (&ts, 1);
std::cerr << "BM: added one, read = " << thread_buffers->read_space()
<< " write = " << thread_buffers->write_space()
<< std::endl;
}
std::cerr << "BM: final, read = " << thread_buffers->read_space()
<< " write = " << thread_buffers->write_space()
<< std::endl;
std::cerr << "BUFFER MANAGER INITIALIZED WITH " << size << " BUFFERs\n";
}
ThreadBuffers*
BufferManager::get_thread_buffers ()
{
ThreadBuffers* tbp;
if (thread_buffers->read (&tbp, 1) == 1) {
return tbp;
}
return 0;
}
void
BufferManager::put_thread_buffers (ThreadBuffers* tbp)
{
thread_buffers->write (&tbp, 1);
}
void
BufferManager::ensure_buffers (ChanCount howmany)
{
/* this is protected by the audioengine's process lock: we do not */
std::cerr << "BufMgr: ensure " << thread_buffers->bufsize() - 1 << " buffers match " << howmany << std::endl;
for (uint32_t n = 0; n < thread_buffers->bufsize() - 1; ++n) {
thread_buffers->buffer()[n]->ensure_buffers (howmany);
}
}
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