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/*
* brass - Braille and speech server
*
* Copyright (C) 2001 by Roger Butenuth, All rights reserved.
*
* This is free software, placed under the terms of the
* GNU General Public License, as published by the Free Software
* Foundation. Please see the file COPYING for details.
*
* $Id: synthesizer.h,v 1.1.1.1 2002/03/03 19:49:48 mgorse Exp $
*/
#ifndef SYNTHESIZER_H
#define SYNTHESIZER_H
#include "lookup.h"
#define LANGUAGES 3
/*
* Language numbers. Do not change the ordering, some programs rely on
* this ordering because they index some statically initialized arrays
* with this language numbers.
*/
#define LANG_BRITISH_ENGLISH 0
#define LANG_GERMAN 1
#define LANG_DUMMY 2
typedef struct {
int lang; /* index (see defines above) */
char *name; /* descriptive name */
} lang_descr_t;
extern lang_descr_t languages[LANGUAGES];
typedef enum {
S_SPEED, /* 1000 = normal */
S_PITCH, /* 1000 = normal */
S_VOLUME, /* 1000 = normal */
S_MAX
} synth_par_t;
typedef struct synth_state *synth_state_p;
typedef struct synth_struct {
synth_state_p state;
lang_descr_t *lang;
char *name;
void *lib_handle;
int (*close)(struct synth_struct *s);
int (*synth)(struct synth_struct *s, unsigned char *buffer);
int (*flush)(struct synth_struct *s);
int (*clear)(struct synth_struct *s);
int (*index_set)(struct synth_struct *s);
int (*index_wait)(struct synth_struct *s, int id, int timeout);
int (*get_param)(struct synth_struct *s, synth_par_t par, int *value);
int (*set_param)(struct synth_struct *s, synth_par_t par, int value);
} synth_t;
synth_t *open_synthesizer(void *context, lookup_string_t lookup);
int close_synthesizer(synth_t *synth);
/* open function in one of the libraries */
synth_t *synth_open(void *context, lookup_string_t lookup);
#endif /* SYNTHESIZER_H */
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