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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2004 Jörg Hohensohn
*
* This module collects the Talkbox and voice UI functions.
* (Talkbox reads directory names from mp3 clips called thumbnails,
* the voice UI lets menus and screens "talk" from a voicefont in memory.
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __TALK_H__
#define __TALK_H__
#include <stdbool.h>
enum {
/* See array "unit_voiced" in talk.c function "talk_value" */
UNIT_INT = 1, /* plain number */
UNIT_SIGNED, /* number with mandatory sign (even if positive) */
UNIT_MS, /* milliseconds */
UNIT_SEC, /* seconds */
UNIT_MIN, /* minutes */
UNIT_HOUR, /* hours */
UNIT_KHZ, /* kHz */
UNIT_DB, /* dB, mandatory sign */
UNIT_PERCENT, /* % */
UNIT_MAH, /* milliAmp hours */
UNIT_PIXEL, /* pixels */
UNIT_PER_SEC, /* per second */
UNIT_HERTZ, /* hertz */
UNIT_MB, /* Megabytes */
UNIT_KBIT, /* kilobits per sec */
UNIT_PM_TICK, /* peak meter units per tick */
UNIT_LAST /* END MARKER */
};
#define UNIT_SHIFT (32-5) /* this many bits left from UNIT_xx enum */
/* make a "talkable" ID from number + unit
unit is upper 4 bits, number the remaining (in regular 2's complement) */
#define TALK_ID(n,u) (((long)(u))<<UNIT_SHIFT | ((n) & ~(-1L<<UNIT_SHIFT)))
/* convenience macro to have both virtual pointer and ID as arguments */
#define STR(id) ID2P(id), id
/* publish these strings, so they're stored only once (better than #define) */
extern const char* const dir_thumbnail_name; /* "_dirname.talk" */
extern const char* const file_thumbnail_ext; /* ".talk" for file voicing */
void talk_init(void);
#if CONFIG_CODEC == SWCODEC
bool talk_voice_required(void); /* returns true if voice codec required */
#endif
int talk_get_bufsize(void); /* get the loaded voice file size */
/* talk_buffer_steal - on SWCODEC, for use by buffer functions only */
int talk_buffer_steal(void); /* claim the mp3 buffer e.g. for play/record */
bool is_voice_queued(void); /* Are there more voice clips to be spoken? */
int talk_id(long id, bool enqueue); /* play a voice ID from voicefont */
int talk_file(const char* filename, bool enqueue); /* play a thumbnail from file */
int talk_number(long n, bool enqueue); /* say a number */
int talk_value(long n, int unit, bool enqueue); /* say a numeric value */
int talk_spell(const char* spell, bool enqueue); /* spell a string */
bool talk_menus_enabled(void); /* returns true if menus should be voiced */
void talk_disable_menus(void); /* disable voice menus (temporarily, not persisted) */
void talk_enable_menus(void); /* re-enable voice menus */
int do_shutup(void); /* kill voice unconditionally */
/* This (otherwise invalid) ID signals the end of the array. */
#define TALK_FINAL_ID LANG_LAST_INDEX_IN_ARRAY
/* We don't build talk.c for hwcodec sims so we need to define these as empty */
#if defined(SIMULATOR) && !(CONFIG_CODEC == SWCODEC)
#define talk_force_enqueue_next(...)
#define talk_idarray(...)
#define talk_ids(...)
#define cond_talk_ids(...)
#define cond_talk_ids_fq(...)
#else
/* Enqueue next utterance even if enqueue parameter is false: don't
interrupt the current utterance. */
void talk_force_enqueue_next(void);
/* speaks one or more IDs (from an array)). */
int talk_idarray(long *idarray, bool enqueue);
/* This makes an initializer for the array of IDs and takes care to
put the final sentinel element at the end. */
#define TALK_IDARRAY(ids...) ((long[]){ids,TALK_FINAL_ID})
/* And this handy macro makes it look like a variadic function. */
#define talk_ids(enqueue, ids...) talk_idarray(TALK_IDARRAY(ids), enqueue)
/* This version talks only if talking menus are enabled, and does not
enqueue the initial id. */
#define cond_talk_ids(ids...) do { \
if (talk_menus_enabled()) \
talk_ids(false, ids); \
} while(0)
/* And a version that takes the array parameter... */
#define cond_talk_idarray(idarray) do { \
if (talk_menus_enabled() \
talk_idarray(idarray, false); \
} while(0)
/* Convenience macro to conditionally speak something and not have
it interrupted. */
#define cond_talk_ids_fq(ids...) do { \
if (talk_menus_enabled()) { \
talk_ids(false, ids); \
talk_force_enqueue_next(); \
} \
}while(0)
#endif /*defined(SIMULATOR) && !(CONFIG_CODEC == SWCODEC)*/
#endif /* __TALK_H__ */
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