2 Copyright (C) 2010 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include "pbd/compose.h"
24 #include "ardour/buffer_manager.h"
25 #include "ardour/thread_buffers.h"
27 using namespace ARDOUR;
30 RingBufferNPT<ThreadBuffers*>* BufferManager::thread_buffers = 0;
31 std::list<ThreadBuffers*>* BufferManager::thread_buffers_list = 0;
32 Glib::Threads::Mutex BufferManager::rb_mutex;
38 BufferManager::init (uint32_t size)
40 thread_buffers = new ThreadBufferFIFO (size+1); // must be one larger than requested
41 thread_buffers_list = new ThreadBufferList;
43 /* and populate with actual ThreadBuffers
46 for (uint32_t n = 0; n < size; ++n) {
47 ThreadBuffers* ts = new ThreadBuffers;
48 thread_buffers->write (&ts, 1);
49 thread_buffers_list->push_back (ts);
51 // cerr << "Initialized thread buffers, readable count now " << thread_buffers->read_space() << endl;
56 BufferManager::get_thread_buffers ()
58 Glib::Threads::Mutex::Lock em (rb_mutex);
61 if (thread_buffers->read (&tbp, 1) == 1) {
62 // cerr << "Got thread buffers, readable count now " << thread_buffers->read_space() << endl;
70 BufferManager::put_thread_buffers (ThreadBuffers* tbp)
72 Glib::Threads::Mutex::Lock em (rb_mutex);
73 thread_buffers->write (&tbp, 1);
74 // cerr << "Put back thread buffers, readable count now " << thread_buffers->read_space() << endl;
78 BufferManager::ensure_buffers (ChanCount howmany, size_t custom)
80 /* this is protected by the audioengine's process lock: we do not */
82 for (ThreadBufferList::iterator i = thread_buffers_list->begin(); i != thread_buffers_list->end(); ++i) {
83 (*i)->ensure_buffers (howmany, custom);