d1322b7159
Namely, introduce buffer_get_buffer() and buffer_release_buffer(). buffer_get_buffer() aquires all available and grabs a lock, attempting to call buffer_alloc() or buffer_get_buffer() while this lock is locked will cause a panicf() (doesn't actually happen, but is for debugging purpose). buffer_release_buffer() unlocks that lock and can additionally increment the audiobuf buffer to make an allocation. Pass 0 to only unlock if buffer was used temporarily only. buffer_available() is a replacement function to query audiobuflen, i.e. what's left in the buffer. Buffer init is moved up in the init chain and handles ipodvideo64mb internally. Further changes happened to mp3data.c and talk.c as to not call the above API functions, but get the buffer from callers. The caller is the audio system which has the buffer lock while mp3data.c and talk mess with the buffer. mpeg.c now implements some buffer related functions of playback.h, especially audio_get_buffer(), allowing to reduce #ifdef hell a tiny bit. audiobuf and audiobufend are local to buffer.c now. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30308 a1c6a512-1295-4272-9138-f99709370657
147 lines
6.2 KiB
C
147 lines
6.2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2004 Jörg Hohensohn
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*
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* This module collects the Talkbox and voice UI functions.
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* (Talkbox reads directory names from mp3 clips called thumbnails,
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* the voice UI lets menus and screens "talk" from a voicefont in memory.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __TALK_H__
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#define __TALK_H__
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#include <stdbool.h>
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#include <inttypes.h>
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#include "time.h"
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#define VOICE_VERSION 400 /* 4.00 - if you change this, change it in voicefont too */
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enum {
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/* See array "unit_voiced" in talk.c function "talk_value" */
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UNIT_INT = 1, /* plain number */
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UNIT_SIGNED, /* number with mandatory sign (even if positive) */
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UNIT_MS, /* milliseconds */
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UNIT_SEC, /* seconds */
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UNIT_MIN, /* minutes */
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UNIT_HOUR, /* hours */
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UNIT_KHZ, /* kHz */
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UNIT_DB, /* dB, mandatory sign */
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UNIT_PERCENT, /* % */
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UNIT_MAH, /* milliAmp hours */
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UNIT_PIXEL, /* pixels */
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UNIT_PER_SEC, /* per second */
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UNIT_HERTZ, /* hertz */
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UNIT_MB, /* Megabytes */
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UNIT_KBIT, /* kilobits per sec */
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UNIT_PM_TICK, /* peak meter units per tick */
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UNIT_TIME, /* time duration/interval in seconds, says hours,mins,secs */
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UNIT_LAST /* END MARKER */
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};
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#define UNIT_SHIFT (32-5) /* this many bits left from UNIT_xx enum */
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#define DECIMAL_SHIFT (32 - 8)
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/* make a "talkable" ID from number + unit
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unit is upper 4 bits, number the remaining (in regular 2's complement) */
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#define TALK_ID(n,u) (((long)(u))<<UNIT_SHIFT | ((n) & ~(-1L<<UNIT_SHIFT)))
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/* make a "talkable" ID from a decimal number + unit, the decimal number
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is represented like x*10^d where d is the number of decimal digits */
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#define TALK_ID_DECIMAL(n,d,u) (((long)(u))<<UNIT_SHIFT |\
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((long)(d))<<DECIMAL_SHIFT |\
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((n) & ~(-1L<<DECIMAL_SHIFT)))
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/* convenience macro to have both virtual pointer and ID as arguments */
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#define STR(id) ID2P(id), id
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/* publish these strings, so they're stored only once (better than #define) */
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extern const char* const dir_thumbnail_name; /* "_dirname.talk" */
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extern const char* const file_thumbnail_ext; /* ".talk" for file voicing */
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void talk_init(void);
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#if CONFIG_CODEC == SWCODEC
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bool talk_voice_required(void); /* returns true if voice codec required */
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#endif
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int talk_get_bufsize(void); /* get the loaded voice file size */
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size_t talkbuf_init(char* bufstart);
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void talk_buffer_steal(void); /* claim the mp3 buffer e.g. for play/record */
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bool is_voice_queued(void); /* Are there more voice clips to be spoken? */
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int talk_id(int32_t id, bool enqueue); /* play a voice ID from voicefont */
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/* play a thumbnail from file */
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int talk_file(const char *root, const char *dir, const char *file,
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const char *ext, const long *prefix_ids, bool enqueue);
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/* play file's thumbnail or spell name */
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int talk_file_or_spell(const char *dirname, const char* filename,
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const long *prefix_ids, bool enqueue);
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/* play dir's thumbnail or spell name */
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int talk_dir_or_spell(const char* filename,
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const long *prefix_ids, bool enqueue);
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int talk_number(long n, bool enqueue); /* say a number */
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int talk_value(long n, int unit, bool enqueue); /* say a numeric value */
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int talk_value_decimal(long n, int unit, int decimals, bool enqueue);
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int talk_spell(const char* spell, bool enqueue); /* spell a string */
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void talk_setting(const void *global_settings_variable); /* read a setting */
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void talk_disable(bool disable); /* temporarily disable (or re-enable) talking (temporarily, not persisted) */
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void talk_force_shutup(void); /* kill voice unconditionally */
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void talk_shutup(void); /* Interrupt voice, as when enqueue is false */
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/* helper function for speaking fractional numbers */
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void talk_fractional(char *tbuf, int value, int unit);
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#if CONFIG_RTC
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void talk_time(const struct tm *tm, bool enqueue);
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void talk_date(const struct tm *tm, bool enqueue);
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#endif /* CONFIG_RTC */
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/* This (otherwise invalid) ID signals the end of the array. */
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#define TALK_FINAL_ID LANG_LAST_INDEX_IN_ARRAY
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/* Enqueue next utterance even if enqueue parameter is false: don't
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interrupt the current utterance. */
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void talk_force_enqueue_next(void);
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/* speaks one or more IDs (from an array)). */
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int talk_idarray(const long *idarray, bool enqueue);
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/* This makes an initializer for the array of IDs and takes care to
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put the final sentinel element at the end. */
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#define TALK_IDARRAY(ids...) ((long[]){ids,TALK_FINAL_ID})
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/* And this handy macro makes it look like a variadic function. */
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#define talk_ids(enqueue, ids...) talk_idarray(TALK_IDARRAY(ids), enqueue)
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/* This version talks only if talking menus are enabled, and does not
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enqueue the initial id. */
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#define cond_talk_ids(ids...) do { \
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if (global_settings.talk_menu) \
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talk_ids(false, ids); \
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} while(0)
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/* And a version that takes the array parameter... */
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#define cond_talk_idarray(idarray) do { \
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if (global_settings.talk_menu \
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talk_idarray(idarray, false); \
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} while(0)
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/* Convenience macro to conditionally speak something and not have
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it interrupted. */
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#define cond_talk_ids_fq(ids...) do { \
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if (global_settings.talk_menu) { \
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talk_ids(false, ids); \
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talk_force_enqueue_next(); \
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} \
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}while(0)
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#endif /* __TALK_H__ */
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