view src/miscplay.h @ 4549:68d1ca56cffa

First part of interactive checks that coding systems encode regions. 2008-01-21 Aidan Kehoe <kehoea@parhasard.net> * coding.el (decode-coding-string): (encode-coding-string): Accept GNU's NOCOPY argument for these. Todo; write compiler macros to use it. (query-coding-warning-face): New face, to show unencodable characters. (default-query-coding-region-safe-charset-skip-chars-map): New variable, a cache used by #'default-query-coding-region. (default-query-coding-region): Default implementation of #'query-coding-region, using the safe-charsets and safe-chars coding systemproperties. (query-coding-region): New function; can a given coding system encode a given region? (query-coding-string): New function; can a given coding system encode a given string? (unencodable-char-position): Function API taken from GNU; return the first unencodable position given a string and coding system. (encode-coding-char): Function API taken from GNU; return CHAR encoded using CODING-SYSTEM, or nil if CODING-SYSTEM would trash CHAR. ((unless (featurep 'mule)): Override the default query-coding-region implementation on non-Mule. * mule/mule-coding.el (make-8-bit-generate-helper): Eliminate a duplicate comment. (make-8-bit-choose-category): Simplify implementation. (8-bit-fixed-query-coding-region): Implementation of #'query-coding-region for coding systems created with #'make-8-bit-coding-system. (make-8-bit-coding-system): Initialise the #'query-coding-region implementation for these character sets. (make-8-bit-coding-system): Ditto for the compiler macro version of this function. * unicode.el (unicode-query-coding-skip-chars-arg): New variable, used by unicode-query-coding-region, initialised in mule/general-late.el. (unicode-query-coding-region): New function, the #'query-coding-region implementation for Unicode coding systems. Initialise the query-coding-function property for the Unicode coding systems to #'unicode-query-coding-region. * mule/mule-charset.el (charset-skip-chars-string): New function. Return a #'skip-chars-forward argument that skips all characters in CHARSET. (map-charset-chars): Function synced from GNU, modified to work with XEmacs. Map FUNC across the int value charset ranges of CHARSET.
author Aidan Kehoe <kehoea@parhasard.net>
date Mon, 21 Jan 2008 22:51:21 +0100
parents ecf1ebac70d8
children
line wrap: on
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/* miscplay.h - general routines related to playing sounds
 **
 ** Copyright (C) 1995,96 by Markus Gutschke (gutschk@math.uni-muenster.de)
 ** This was sawed out from version 1.3 of linuxplay.c by
 ** Robert Bihlmeyer <robbe@orcus.priv.at>.
 **
 ** Parts of this code were inspired by sunplay.c, which is copyright 1989 by
 ** Jef Poskanzer and 1991,92 by Jamie Zawinski; c.f. sunplay.c for further
 ** information.
 **
 ** Permission to use, copy, modify, and distribute this software and its
 ** documentation for any purpose and without fee is hereby granted, provided
 ** that the above copyright notice appear in all copies and that both that
 ** copyright notice and this permission notice appear in supporting
 ** documentation.  This software is provided "as is" without express or
 ** implied warranty.
 */

/* Synched up with: Not in FSF. */

/* This file Mule-ized by Ben Wing, 5-15-01. */

#ifndef INCLUDED_miscplay_h_
#define INCLUDED_miscplay_h_

#define HEADERSZ  256   /* has to be at least as big as the biggest header   */
#define SNDBUFSZ  2048  /* has to be at least as big as HEADERSZ             */

/* Audio data formats from <linux/soundcard.h> */
#define AFMT_MU_LAW            0x00000001
#define AFMT_A_LAW             0x00000002
#define AFMT_IMA_ADPCM         0x00000004
#define AFMT_U8                        0x00000008
#define AFMT_S16_LE            0x00000010      /* Little endian signed 16*/
#define AFMT_S16_BE            0x00000020      /* Big endian signed 16 */
#define AFMT_S8                        0x00000040
#define AFMT_U16_LE            0x00000080      /* Little endian U16 */
#define AFMT_U16_BE            0x00000100      /* Big endian U16 */
#define AFMT_MPEG              0x00000200      /* MPEG (2) audio */

typedef enum {fmtIllegal,fmtRaw,fmtVoc,fmtWave,fmtSunAudio} fmtType;

size_t sndcnvnop(void **data,size_t *sz,void **outbuf);
size_t sndcnv8U_2mono(void **data,size_t *sz,void **outbuf);
size_t sndcnv8S_2mono(void **data,size_t *sz,void **outbuf);
size_t sndcnv2monounsigned(void **data,size_t *sz,void **outbuf);
size_t sndcnv2unsigned(void **data,size_t *sz,void **outbuf);
size_t sndcnvULaw_2linear(void **data,size_t *sz,void **outbuf);
size_t sndcnvULaw_2mono(void **data,size_t *sz,void **outbuf);
size_t sndcnv16swap(void **data,size_t *sz,void **outbuf);
size_t sndcnv16_2monoLE(void **data,size_t *sz,void **outbuf);
size_t sndcnv16_2monoBE(void **data,size_t *sz,void **outbuf);
size_t sndcnv2byteLE(void **data,size_t *sz,void **outbuf);
size_t sndcnv2byteBE(void **data,size_t *sz,void **outbuf);
size_t sndcnv2monobyteLE(void **data,size_t *sz,void **outbuf);
size_t sndcnv2monobyteBE(void **data,size_t *sz,void **outbuf);

fmtType analyze_format(Binbyte *format,int *fmt,int *speed,
                             int *tracks,
                             size_t (**parsesndfile)(void **,size_t *sz,
                                                     void **));
void reset_parsestate(void);
int parse_wave_complete(void);

#endif /* INCLUDED_miscplay_h_ */