Robin Gareus
bb727f4588
This is needed for gain and pan automation buffers as well as silent and scratch buffers when bouncing or exporting with larger chunk size than the current engine period.
86 lines
2.5 KiB
C++
86 lines
2.5 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/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::Threads::Mutex BufferManager::rb_mutex;
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using std::cerr;
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using std::endl;
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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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// cerr << "Initialized thread buffers, readable count now " << thread_buffers->read_space() << endl;
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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::Threads::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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// cerr << "Got thread buffers, readable count now " << thread_buffers->read_space() << endl;
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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::Threads::Mutex::Lock em (rb_mutex);
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thread_buffers->write (&tbp, 1);
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// cerr << "Put back thread buffers, readable count now " << thread_buffers->read_space() << endl;
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}
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void
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BufferManager::ensure_buffers (ChanCount howmany, size_t custom)
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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, custom);
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}
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}
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