File: convolution.h

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/* convoLV2 -- LV2 convolution plugin
 *
 * Copyright (C) 2012 Robin Gareus <robin@gareus.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 2, 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 CONVOLUTION_H
#define CONVOLUTION_H

#ifndef NDEBUG
# define DEBUG_printf(FMT, ...) fprintf(stderr, FMT, ##__VA_ARGS__)
#else
# define DEBUG_printf(FMT, ...) 
#endif

#define VERBOSE_printf(FMT, ...) fprintf(stderr, FMT, ##__VA_ARGS__)


#define MAX_CHANNEL_MAPS (4)

/* zita-convolver lib is C++ so we need extern "C" in order to link
 * functions using it. */
#ifdef __cplusplus
extern "C" {
#endif

typedef struct LV2convolv LV2convolv;

extern LV2convolv *clv_alloc();
extern void clv_free (LV2convolv *clv);

int clv_configure (LV2convolv *clv, const char *key, const char *value);
extern int clv_initialize (LV2convolv *clv, const unsigned int sample_rate, const unsigned int in_channel_cnt, const unsigned int out_channel_cnt, const unsigned int buffersize);
extern void clv_release (LV2convolv *clv);
void clv_clone_settings(LV2convolv *clv_new, LV2convolv *clv);

extern int clv_convolve (LV2convolv *clv, const float * const * inbuf, float * const* outbuf, const unsigned int in_channel_cnt, const unsigned int out_channel_cnt, const unsigned int n_samples, const float output_gain);

int clv_query_setting (LV2convolv *clv, const char *key, char *value, size_t val_max_len);
char *clv_dump_settings (LV2convolv *clv);
int clv_is_active (LV2convolv *clv);

#ifdef __cplusplus
}
#endif

#endif