Paul Davis
5bda71718e
git-svn-id: svn://localhost/ardour2/branches/3.0@11204 d708f5d6-7413-0410-9779-e7cbd77b26cf
80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/*
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Copyright (C) 2010 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <iostream>
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#include "pbd/compose.h"
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#include "ardour/buffer_manager.h"
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#include "ardour/debug.h"
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#include "ardour/thread_buffers.h"
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using namespace ARDOUR;
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using namespace PBD;
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RingBufferNPT<ThreadBuffers*>* BufferManager::thread_buffers = 0;
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std::list<ThreadBuffers*>* BufferManager::thread_buffers_list = 0;
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Glib::StaticMutex BufferManager::rb_mutex = GLIBMM_STATIC_MUTEX_INIT;
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void
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BufferManager::init (uint32_t size)
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{
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thread_buffers = new ThreadBufferFIFO (size+1); // must be one larger than requested
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thread_buffers_list = new ThreadBufferList;
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/* and populate with actual ThreadBuffers
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*/
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for (uint32_t n = 0; n < size; ++n) {
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ThreadBuffers* ts = new ThreadBuffers;
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thread_buffers->write (&ts, 1);
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thread_buffers_list->push_back (ts);
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}
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}
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ThreadBuffers*
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BufferManager::get_thread_buffers ()
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{
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Glib::Mutex::Lock em (rb_mutex);
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ThreadBuffers* tbp;
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if (thread_buffers->read (&tbp, 1) == 1) {
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return tbp;
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}
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return 0;
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}
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void
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BufferManager::put_thread_buffers (ThreadBuffers* tbp)
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{
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Glib::Mutex::Lock em (rb_mutex);
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thread_buffers->write (&tbp, 1);
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}
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void
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BufferManager::ensure_buffers (ChanCount howmany)
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{
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/* this is protected by the audioengine's process lock: we do not */
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for (ThreadBufferList::iterator i = thread_buffers_list->begin(); i != thread_buffers_list->end(); ++i) {
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(*i)->ensure_buffers (howmany);
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}
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}
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