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Diffstat (limited to 'libs/backends/wavesaudio/waves_audioport.cc')
| -rw-r--r-- | libs/backends/wavesaudio/waves_audioport.cc | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/libs/backends/wavesaudio/waves_audioport.cc b/libs/backends/wavesaudio/waves_audioport.cc new file mode 100644 index 0000000000..600066b83c --- /dev/null +++ b/libs/backends/wavesaudio/waves_audioport.cc @@ -0,0 +1,62 @@ +/* + Copyright (C) 2013 Valeriy Kamyshniy + + 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 "waves_audioport.h" + +using namespace ARDOUR; + +WavesAudioPort::WavesAudioPort (const std::string& port_name, PortFlags flags) + : WavesDataPort (port_name, flags) +{ + memset (_buffer, 0, sizeof (_buffer)); +} + + +void* WavesAudioPort::get_buffer (pframes_t nframes) +{ + if (is_input ()) { + + std::vector<WavesDataPort*>::const_iterator it = get_connections ().begin (); + + if (it != get_connections ().end ()) { + /* In fact, the static casting to (const WavesAudioPort*) is not that safe. + * However, mixing the buffers is assumed in the time critical conditions. + * Base class WavesDataPort takes is supposed to provide enough consistentcy + * of the connections. + */ + for (memcpy (_buffer, ((const WavesAudioPort*)*it)->const_buffer (), nframes * sizeof (Sample)), ++it; + it != get_connections ().end (); + ++it) { + Sample* tgt = buffer (); + const Sample* src = ((const WavesAudioPort*)*it)->const_buffer (); + for (uint32_t frame = 0; frame < nframes; ++frame, ++tgt, ++src) { + *tgt += *src; + } + } + } + } + return _buffer; +} + + +void +WavesAudioPort::_wipe_buffer() +{ + memset (_buffer, 0, sizeof (_buffer)); +}
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