diff options
Diffstat (limited to 'libs/zita-resampler/zita-resampler/resampler-table.h')
-rw-r--r-- | libs/zita-resampler/zita-resampler/resampler-table.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/libs/zita-resampler/zita-resampler/resampler-table.h b/libs/zita-resampler/zita-resampler/resampler-table.h new file mode 100644 index 0000000000..6fcc0a37fa --- /dev/null +++ b/libs/zita-resampler/zita-resampler/resampler-table.h @@ -0,0 +1,69 @@ +// ---------------------------------------------------------------------------- +// +// Copyright (C) 2006-2012 Fons Adriaensen <fons@linuxaudio.org> +// +// 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 3 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, see <http://www.gnu.org/licenses/>. +// +// ---------------------------------------------------------------------------- + + +#ifndef _ZITA_RESAMPLER_TABLE_H_ +#define _ZITA_RESAMPLER_TABLE_H_ + +#include <pthread.h> +#include "zita-resampler/zresampler_visibility.h" + +namespace ArdourZita { + +class LIBZRESAMPLER_API Resampler_mutex +{ +private: + + friend class Resampler_table; + + Resampler_mutex (void) { pthread_mutex_init (&_mutex, 0); } + ~Resampler_mutex (void) { pthread_mutex_destroy (&_mutex); } + void lock (void) { pthread_mutex_lock (&_mutex); } + void unlock (void) { pthread_mutex_unlock (&_mutex); } + + pthread_mutex_t _mutex; +}; + + +class LIBZRESAMPLER_API Resampler_table +{ +private: + Resampler_table (double fr, unsigned int hl, unsigned int np); + ~Resampler_table (void); + + friend class Resampler; + friend class VResampler; + + Resampler_table *_next; + unsigned int _refc; + float *_ctab; + double _fr; + unsigned int _hl; + unsigned int _np; + + static Resampler_table *create (double fr, unsigned int hl, unsigned int np); + static void destroy (Resampler_table *T); + + static Resampler_table *_list; + static Resampler_mutex _mutex; +}; + +}; + +#endif |