c40437430a
git-svn-id: svn://localhost/ardour2/branches/3.0@12650 d708f5d6-7413-0410-9779-e7cbd77b26cf
105 lines
2.9 KiB
C++
105 lines
2.9 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 <algorithm>
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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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, mix_buffers (new BufferSet)
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, gain_automation_buffer (0)
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, send_gain_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)
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{
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// std::cerr << "ThreadBuffers " << this << " resize buffers with count = " << howmany << std::endl;
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/* this is all protected by the process lock in the Session
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*/
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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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if (howmany.n_audio() == 0 && howmany.n_midi() == 1) {
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return;
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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 = _engine->raw_buffer_size (*t);
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scratch_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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}
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delete [] gain_automation_buffer;
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gain_automation_buffer = new gain_t[_engine->raw_buffer_size (DataType::AUDIO)];
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delete [] send_gain_automation_buffer;
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send_gain_automation_buffer = new gain_t[_engine->raw_buffer_size (DataType::AUDIO)];
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allocate_pan_automation_buffers (_engine->raw_buffer_size (DataType::AUDIO), howmany.n_audio(), false);
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}
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void
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ThreadBuffers::allocate_pan_automation_buffers (framecnt_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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