SDL_sound_CoreAudio: decoders/skeleton.c annotate

annotate decoders/skeleton.c @ 557:247dbdf2f305

Abandoning CHANGELOG.txt ...

author	Ryan C. Gordon <icculus@icculus.org>
date	Tue, 27 Jan 2009 14:11:11 -0500
parents	2e8907ff98e9
children

rev	line source
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1 /*
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	2 * SDL_sound -- An abstract sound format decoding API.
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	3 * Copyright (C) 2001 Ryan C. Gordon.
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	4 *
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	5 * This library is free software; you can redistribute it and/or
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	6 * modify it under the terms of the GNU Lesser General Public
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	7 * License as published by the Free Software Foundation; either
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	8 * version 2.1 of the License, or (at your option) any later version.
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	9 *
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	10 * This library is distributed in the hope that it will be useful,
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	13 * Lesser General Public License for more details.
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	14 *
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	15 * You should have received a copy of the GNU Lesser General Public
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	16 * License along with this library; if not, write to the Free Software
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	18 */
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	19
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	20 /*
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	21 * FMT decoder for SDL_sound.
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	22 *
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	23 * This driver handles FMT audio data. Blahblahblah... The author should
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	24 * have done a search and replace on "fmt" and "FMT" and changed this
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	25 * comment. This is the default comment in the skeleton decoder file...
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	26 *
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	27 * None of this code, even the parts that LOOK right, have been compiled,
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	28 * so you cut-and-paste at your own risk.
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	29 *
552 2e8907ff98e9 Replaced references to COPYING with references to LICENSE.txt ... Ryan C. Gordon <icculus@icculus.org> parents: 526 diff changeset	30 * Please see the file LICENSE.txt in the source's root directory.
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	31 *
526 2df1f5c62d38 Updated my email address. Ryan C. Gordon <icculus@icculus.org> parents: 387 diff changeset	32 * This file written by Ryan C. Gordon. (icculus@icculus.org)
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	33 */
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	34
103 706ec5842737 Updated for autoconf change, and placed #error messages so people don't Ryan C. Gordon <icculus@icculus.org> parents: 100 diff changeset	35 #error DO NOT COMPILE THIS.
706ec5842737 Updated for autoconf change, and placed #error messages so people don't Ryan C. Gordon <icculus@icculus.org> parents: 100 diff changeset	36 #error This is an example decoder skeleton.
706ec5842737 Updated for autoconf change, and placed #error messages so people don't Ryan C. Gordon <icculus@icculus.org> parents: 100 diff changeset	37 #error You should base your code on this file, and remove these error lines
706ec5842737 Updated for autoconf change, and placed #error messages so people don't Ryan C. Gordon <icculus@icculus.org> parents: 100 diff changeset	38 #error from your version.
706ec5842737 Updated for autoconf change, and placed #error messages so people don't Ryan C. Gordon <icculus@icculus.org> parents: 100 diff changeset	39
106 40de367eb59e Changing my include structure to do this right. Ryan C. Gordon <icculus@icculus.org> parents: 103 diff changeset	40 #if HAVE_CONFIG_H
40de367eb59e Changing my include structure to do this right. Ryan C. Gordon <icculus@icculus.org> parents: 103 diff changeset	41 # include <config.h>
40de367eb59e Changing my include structure to do this right. Ryan C. Gordon <icculus@icculus.org> parents: 103 diff changeset	42 #endif
100 6d9fdec2f708 added config.h, added --enable-debug flag, various other changes to the build system fingolfin parents: 64 diff changeset	43
103 706ec5842737 Updated for autoconf change, and placed #error messages so people don't Ryan C. Gordon <icculus@icculus.org> parents: 100 diff changeset	44 #ifdef SOUND_SUPPORTS_FMT
706ec5842737 Updated for autoconf change, and placed #error messages so people don't Ryan C. Gordon <icculus@icculus.org> parents: 100 diff changeset	45
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	46 #include <stdio.h>
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	47 #include <stdlib.h>
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	48 #include <string.h>
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	49
106 40de367eb59e Changing my include structure to do this right. Ryan C. Gordon <icculus@icculus.org> parents: 103 diff changeset	50 #include "SDL_sound.h"
40de367eb59e Changing my include structure to do this right. Ryan C. Gordon <icculus@icculus.org> parents: 103 diff changeset	51
40de367eb59e Changing my include structure to do this right. Ryan C. Gordon <icculus@icculus.org> parents: 103 diff changeset	52 #define __SDL_SOUND_INTERNAL__
40de367eb59e Changing my include structure to do this right. Ryan C. Gordon <icculus@icculus.org> parents: 103 diff changeset	53 #include "SDL_sound_internal.h"
40de367eb59e Changing my include structure to do this right. Ryan C. Gordon <icculus@icculus.org> parents: 103 diff changeset	54
47 ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	55 static int FMT_init(void);
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	56 static void FMT_quit(void);
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	57 static int FMT_open(Sound_Sample sample, const char ext);
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	58 static void FMT_close(Sound_Sample *sample);
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	59 static Uint32 FMT_read(Sound_Sample *sample);
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	60 static int FMT_rewind(Sound_Sample *sample);
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	61 static int FMT_seek(Sound_Sample *sample, Uint32 ms);
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	62
149 1df5c106504e Decoders can now list multiple file extensions. Ryan C. Gordon <icculus@icculus.org> parents: 106 diff changeset	63 static const char *extensions_fmt[] = { "FMT", NULL };
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	64 const Sound_DecoderFunctions __Sound_DecoderFunctions_FMT =
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	65 {
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	66 {
149 1df5c106504e Decoders can now list multiple file extensions. Ryan C. Gordon <icculus@icculus.org> parents: 106 diff changeset	67 extensions_fmt,
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	68 "FMT audio format description",
526 2df1f5c62d38 Updated my email address. Ryan C. Gordon <icculus@icculus.org> parents: 387 diff changeset	69 "Ryan C. Gordon <icculus@icculus.org>",
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	70 "http://www.icculus.org/SDL_sound/"
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	71 },
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	72
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	73 FMT_init, /* init() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	74 FMT_quit, /* quit() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	75 FMT_open, /* open() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	76 FMT_close, /* close() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	77 FMT_read, /* read() method */
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	78 FMT_rewind, /* rewind() method */
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	79 FMT_seek /* seek() method */
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	80 };
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	81
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	82
47 ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	83 static int FMT_init(void)
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	84 {
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	85 /* do any global decoder/library initialization you need here. */
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	86
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	87 return(1); /* initialization successful. */
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	88 } /* FMT_init */
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	89
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	90
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	91 static void FMT_quit(void)
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	92 {
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	93 /* do any global decoder/library cleanup you need here. */
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	94 } /* FMT_quit */
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	95
ea58bc3b15d7 Added init() and quit() methods. Ryan C. Gordon <icculus@icculus.org> parents: 21 diff changeset	96
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	97 static int FMT_open(Sound_Sample sample, const char ext)
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	98 {
21 d9b9d60cf9a9 Added some helpful info to FMT_open()... Ryan C. Gordon <icculus@icculus.org> parents: 16 diff changeset	99 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
d9b9d60cf9a9 Added some helpful info to FMT_open()... Ryan C. Gordon <icculus@icculus.org> parents: 16 diff changeset	100 SDL_RWops *rw = internal->rw;
d9b9d60cf9a9 Added some helpful info to FMT_open()... Ryan C. Gordon <icculus@icculus.org> parents: 16 diff changeset	101
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	102 if (can NOT accept the data)
387 fb519e6028e3 Changed all the Sound_SetError() calls to __Sound_SetError (or BAIL_MACRO) Ryan C. Gordon <icculus@icculus.org>* parents: 377 diff changeset	103 BAIL_MACRO("FMT: expected X, got Y.", 0);
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	104
62 b13fafb976be Changed _D macro to DBGSND. Ryan C. Gordon <icculus@icculus.org> parents: 47 diff changeset	105 SNDDBG(("FMT: Accepting data stream.\n"));
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	106 set up sample->actual;
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	107 sample->flags = SOUND_SAMPLEFLAG_NONE;
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	108 return(1); /* we'll handle this data. */
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	109 } /* FMT_open */
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	110
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	111
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	112 static void FMT_close(Sound_Sample *sample)
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	113 {
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	114 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	115 clean up anything you put into internal->decoder_private;
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	116 } /* FMT_close */
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	117
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	118
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	119 static Uint32 FMT_read(Sound_Sample *sample)
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	120 {
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	121 Uint32 retval;
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	122 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	123
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	124 /*
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	125 * We don't actually do any decoding, so we read the fmt data
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	126 * directly into the internal buffer...
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	127 */
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	128 retval = SDL_RWread(internal->rw, internal->buffer,
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	129 1, internal->buffer_size);
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	130
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	131 (or whatever. Do some decoding here...)
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	132
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	133 /* Make sure the read went smoothly... */
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	134 if (retval == 0)
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	135 sample->flags \|= SOUND_SAMPLEFLAG_EOF;
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	136
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	137 else if (retval == -1)
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	138 sample->flags \|= SOUND_SAMPLEFLAG_ERROR;
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	139
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	140 /* (next call this EAGAIN may turn into an EOF or error.) */
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	141 else if (retval < internal->buffer_size)
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	142 sample->flags \|= SOUND_SAMPLEFLAG_EAGAIN;
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	143
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	144 (or whatever. retval == number of bytes you put in internal->buffer).
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	145
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	146 return(retval);
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	147 } /* FMT_read */
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	148
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	149
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	150 static int FMT_rewind(Sound_Sample *sample)
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	151 {
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	152 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	153
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	154 /* seek to the appropriate place... */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	155 BAIL_IF_MACRO(SDL_RWseek(internal->rw, 0, SEEK_SET) != 0, ERR_IO_ERROR, 0);
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	156
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	157 (reset state as necessary.)
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	158
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	159 return(1); /* success. */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	160 } /* FMT_rewind */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 184 diff changeset	161
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	162
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	163 static int FMT_seek(Sound_Sample *sample, Uint32 ms)
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	164 {
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	165 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	166
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	167 /* seek to the appropriate place... */
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	168 BAIL_IF_MACRO(SDL_RWseek(internal->rw, 0, SEEK_SET) != 0, ERR_IO_ERROR, 0);
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	169
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	170 (set state as necessary.)
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	171
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	172 return(1); /* success. */
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	173 } /* FMT_seek */
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	174
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	175
64 40006625142a Changes in preparation of autoconf support. Ryan C. Gordon <icculus@icculus.org> parents: 62 diff changeset	176 #endif /* SOUND_SUPPORTS_FMT */
40006625142a Changes in preparation of autoconf support. Ryan C. Gordon <icculus@icculus.org> parents: 62 diff changeset	177
16 3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	178
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	179 /* end of fmt.c ... */
3efbcaf36fec Initial add. Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	180

Mercurial > SDL_sound_CoreAudio

annotate decoders/skeleton.c @ 557:247dbdf2f305