53 lines
2.1 KiB
C++
53 lines
2.1 KiB
C++
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/*******************************************************************************/
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/* Copyright (C) 2008 Jonathan Moore Liles */
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/* */
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/* This program is free software; you can redistribute it and/or modify it */
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/* under the terms of the GNU General Public License as published by the */
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/* Free Software Foundation; either version 2 of the License, or (at your */
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/* option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, but WITHOUT */
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
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/* 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; see the file COPYING. If not,write to the Free Software */
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/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*******************************************************************************/
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/* RT/thread-safe interface to a single jack port. */
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/* nframes is the number of frames to buffer */
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Port::Port ( jack_port_t *port, nframes_t nframes )
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{
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_port = port;
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_rb = jack_ringbuffer_create( nframes * sizeof( stample_t ) );
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_name = jack_port_name( _port );
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}
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Port::~Port ( )
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{
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jack_ringbuffer_free( _rb );
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}
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nframes_t
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Port::write ( sample_t *buf, nframes_t nframes )
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{
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const size_t size = nframes * sizeof( sample_t );
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return jack_ringbuffer_write( _rb, buf, size ) / sizeof( sample_t );
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}
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/* runs in the RT thread! */
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void
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Port::process ( nframes_t nframes )
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{
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sample_t *buf = jack_port_get_buffer( _port, nframes );
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/* FIXME: check size */
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jack_ringbuffer_read( _rb, buf, nframes );
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}
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