Paul Davis
3cd8138a41
git-svn-id: svn://localhost/ardour2/branches/3.0@13084 d708f5d6-7413-0410-9779-e7cbd77b26cf
86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
/*
|
|
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 "pbd/compose.h"
|
|
|
|
#include "ardour/buffer_manager.h"
|
|
#include "ardour/thread_buffers.h"
|
|
|
|
using namespace ARDOUR;
|
|
using namespace PBD;
|
|
|
|
RingBufferNPT<ThreadBuffers*>* BufferManager::thread_buffers = 0;
|
|
std::list<ThreadBuffers*>* BufferManager::thread_buffers_list = 0;
|
|
Glib::Threads::Mutex BufferManager::rb_mutex;
|
|
|
|
using std::cerr;
|
|
using std::endl;
|
|
|
|
void
|
|
BufferManager::init (uint32_t size)
|
|
{
|
|
thread_buffers = new ThreadBufferFIFO (size+1); // must be one larger than requested
|
|
thread_buffers_list = new ThreadBufferList;
|
|
|
|
/* and populate with actual ThreadBuffers
|
|
*/
|
|
|
|
for (uint32_t n = 0; n < size; ++n) {
|
|
ThreadBuffers* ts = new ThreadBuffers;
|
|
thread_buffers->write (&ts, 1);
|
|
thread_buffers_list->push_back (ts);
|
|
}
|
|
// cerr << "Initialized thread buffers, readable count now " << thread_buffers->read_space() << endl;
|
|
|
|
}
|
|
|
|
ThreadBuffers*
|
|
BufferManager::get_thread_buffers ()
|
|
{
|
|
Glib::Threads::Mutex::Lock em (rb_mutex);
|
|
ThreadBuffers* tbp;
|
|
|
|
if (thread_buffers->read (&tbp, 1) == 1) {
|
|
// cerr << "Got thread buffers, readable count now " << thread_buffers->read_space() << endl;
|
|
return tbp;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
BufferManager::put_thread_buffers (ThreadBuffers* tbp)
|
|
{
|
|
Glib::Threads::Mutex::Lock em (rb_mutex);
|
|
thread_buffers->write (&tbp, 1);
|
|
// cerr << "Put back thread buffers, readable count now " << thread_buffers->read_space() << endl;
|
|
}
|
|
|
|
void
|
|
BufferManager::ensure_buffers (ChanCount howmany)
|
|
{
|
|
/* this is protected by the audioengine's process lock: we do not */
|
|
|
|
for (ThreadBufferList::iterator i = thread_buffers_list->begin(); i != thread_buffers_list->end(); ++i) {
|
|
(*i)->ensure_buffers (howmany);
|
|
}
|
|
}
|