92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
/*
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Copyright (C) 2006 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 <cassert>
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#include "pbd/stacktrace.h"
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#include "ardour/audio_buffer.h"
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#include "ardour/audioengine.h"
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#include "ardour/audio_port.h"
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#include "ardour/data_type.h"
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#include "ardour/port_engine.h"
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using namespace ARDOUR;
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using namespace std;
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#define port_engine AudioEngine::instance()->port_engine()
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AudioPort::AudioPort (const std::string& name, PortFlags flags)
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: Port (name, DataType::AUDIO, flags)
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, _buffer (new AudioBuffer (0))
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{
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assert (name.find_first_of (':') == string::npos);
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}
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AudioPort::~AudioPort ()
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{
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delete _buffer;
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}
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void
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AudioPort::cycle_start (pframes_t nframes)
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{
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/* caller must hold process lock */
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Port::cycle_start (nframes);
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if (sends_output()) {
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_buffer->prepare ();
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}
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}
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void
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AudioPort::cycle_end (pframes_t nframes)
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{
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if (sends_output() && !_buffer->written()) {
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if (_buffer->capacity() >= nframes) {
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_buffer->silence (nframes);
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}
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}
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}
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void
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AudioPort::cycle_split ()
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{
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}
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AudioBuffer&
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AudioPort::get_audio_buffer (pframes_t nframes)
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{
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/* caller must hold process lock */
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_buffer->set_data ((Sample *) port_engine.get_buffer (_port_handle, _cycle_nframes) +
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_global_port_buffer_offset + _port_buffer_offset, nframes);
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return *_buffer;
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}
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Sample*
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AudioPort::engine_get_whole_audio_buffer ()
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{
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/* caller must hold process lock */
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return (Sample *) port_engine.get_buffer (_port_handle, _cycle_nframes);
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}
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