119 lines
3.6 KiB
C++
119 lines
3.6 KiB
C++
/*
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* Copyright (C) 2010-2012 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2010-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2013-2017 Robin Gareus <robin@gareus.org>
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*
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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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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <algorithm>
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#include <iostream>
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#include "ardour/audioengine.h"
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#include "ardour/buffer_set.h"
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#include "ardour/thread_buffers.h"
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using namespace ARDOUR;
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using namespace std;
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ThreadBuffers::ThreadBuffers ()
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: silent_buffers (new BufferSet)
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, scratch_buffers (new BufferSet)
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, noinplace_buffers (new BufferSet)
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, route_buffers (new BufferSet)
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, mix_buffers (new BufferSet)
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, gain_automation_buffer (0)
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, trim_automation_buffer (0)
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, send_gain_automation_buffer (0)
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, scratch_automation_buffer (0)
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, pan_automation_buffer (0)
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, npan_buffers (0)
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{
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}
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void
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ThreadBuffers::ensure_buffers (ChanCount howmany, size_t custom)
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{
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// std::cerr << "ThreadBuffers " << this << " resize buffers with count = " << howmany << " size = " << custom << std::endl;
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/* this is all protected by the process lock in the Session */
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/* we always need at least 1 midi buffer */
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if (howmany.n_midi () < 1) {
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howmany.set_midi (1);
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}
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AudioEngine* _engine = AudioEngine::instance ();
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for (DataType::iterator t = DataType::begin (); t != DataType::end (); ++t) {
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size_t count = std::max (scratch_buffers->available ().get (*t), howmany.get (*t));
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size_t size;
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if (custom > 0) {
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size = custom;
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} else {
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size = (*t == DataType::MIDI)
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? _engine->raw_buffer_size (*t)
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: _engine->raw_buffer_size (*t) / sizeof (Sample);
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}
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scratch_buffers->ensure_buffers (*t, count, size);
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noinplace_buffers->ensure_buffers (*t, count, size);
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mix_buffers->ensure_buffers (*t, count, size);
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silent_buffers->ensure_buffers (*t, count, size);
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route_buffers->ensure_buffers (*t, count, size);
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}
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size_t audio_buffer_size = custom > 0 ? custom : _engine->raw_buffer_size (DataType::AUDIO) / sizeof (Sample);
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delete[] gain_automation_buffer;
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gain_automation_buffer = new gain_t[audio_buffer_size];
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delete[] trim_automation_buffer;
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trim_automation_buffer = new gain_t[audio_buffer_size];
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delete[] send_gain_automation_buffer;
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send_gain_automation_buffer = new gain_t[audio_buffer_size];
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delete[] scratch_automation_buffer;
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scratch_automation_buffer = new gain_t[audio_buffer_size];
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allocate_pan_automation_buffers (audio_buffer_size, howmany.n_audio (), false);
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}
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void
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ThreadBuffers::allocate_pan_automation_buffers (samplecnt_t nframes, uint32_t howmany, bool force)
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{
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/* we always need at least 2 pan buffers */
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howmany = max (2U, howmany);
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if (!force && howmany <= npan_buffers) {
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return;
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}
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if (pan_automation_buffer) {
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for (uint32_t i = 0; i < npan_buffers; ++i) {
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delete[] pan_automation_buffer[i];
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}
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delete[] pan_automation_buffer;
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}
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pan_automation_buffer = new pan_t*[howmany];
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for (uint32_t i = 0; i < howmany; ++i) {
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pan_automation_buffer[i] = new pan_t[nframes];
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}
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npan_buffers = howmany;
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}
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