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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/audioengine.h"
#include "ardour/buffer_set.h"
#include "ardour/thread_buffers.h"
using namespace ARDOUR;
using namespace std;
ThreadBuffers::ThreadBuffers ()
: silent_buffers (new BufferSet)
, scratch_buffers (new BufferSet)
, mix_buffers (new BufferSet)
, gain_automation_buffer (0)
, pan_automation_buffer (0)
, npan_buffers (0)
{
}
void
ThreadBuffers::ensure_buffers (ChanCount howmany)
{
// std::cerr << "ThreadBuffers " << this << " resize buffers with count = " << howmany << std::endl;
/* this is all protected by the process lock in the Session
*/
if (howmany.n_total() == 0) {
return;
}
AudioEngine* _engine = AudioEngine::instance ();
for (DataType::iterator t = DataType::begin(); t != DataType::end(); ++t) {
size_t count = std::max (scratch_buffers->available().get(*t), howmany.get(*t));
size_t size = _engine->raw_buffer_size (*t);
scratch_buffers->ensure_buffers (*t, count, size);
mix_buffers->ensure_buffers (*t, count, size);
silent_buffers->ensure_buffers (*t, count, size);
}
delete [] gain_automation_buffer;
gain_automation_buffer = new gain_t[_engine->raw_buffer_size (DataType::AUDIO)];
allocate_pan_automation_buffers (_engine->raw_buffer_size (DataType::AUDIO), howmany.n_audio(), false);
}
void
ThreadBuffers::allocate_pan_automation_buffers (framecnt_t nframes, uint32_t howmany, bool force)
{
if (!force && howmany <= npan_buffers) {
return;
}
if (pan_automation_buffer) {
for (uint32_t i = 0; i < npan_buffers; ++i) {
delete [] pan_automation_buffer[i];
}
delete [] pan_automation_buffer;
}
pan_automation_buffer = new pan_t*[howmany];
for (uint32_t i = 0; i < howmany; ++i) {
pan_automation_buffer[i] = new pan_t[nframes];
}
npan_buffers = howmany;
}
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