SDL_sound_CoreAudio: decoders/mikmod.c annotate

annotate decoders/mikmod.c @ 590:1c8414cd5839

Introduced new Ogg Tremor decoder, based on the existing Ogg Vorbis decoder.

author	Eric Wing <ewing@anscamobile.com>
date	Wed, 27 Apr 2011 19:37:16 -0700
parents	2e8907ff98e9
children

rev	line source
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	1 /*
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	2 * SDL_sound -- An abstract sound format decoding API.
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	3 * Copyright (C) 2001 Ryan C. Gordon.
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	4 *
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	5 * This library is free software; you can redistribute it and/or
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	6 * modify it under the terms of the GNU Lesser General Public
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	7 * License as published by the Free Software Foundation; either
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	8 * version 2.1 of the License, or (at your option) any later version.
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	9 *
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	10 * This library is distributed in the hope that it will be useful,
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	13 * Lesser General Public License for more details.
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	14 *
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	15 * You should have received a copy of the GNU Lesser General Public
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	16 * License along with this library; if not, write to the Free Software
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	18 */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	19
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	20 /*
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	21 * Module player for SDL_sound. This driver handles anything MikMod does, and
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	22 * is based on SDL_mixer.
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	23 *
552 2e8907ff98e9 Replaced references to COPYING with references to LICENSE.txt ... Ryan C. Gordon <icculus@icculus.org> parents: 536 diff changeset	24 * Please see the file LICENSE.txt in the source's root directory.
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	25 *
536 8a814bbbedfa Merged r544:545 from branches/stable-1.0: converted to UTF-8 encoding. Ryan C. Gordon <icculus@icculus.org> parents: 477 diff changeset	26 * This file written by Torbjörn Andersson (d91tan@Update.UU.SE)
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	27 */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	28
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	29 #if HAVE_CONFIG_H
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	30 # include <config.h>
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	31 #endif
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	32
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	33 #ifdef SOUND_SUPPORTS_MIKMOD
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	34
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	35 #include <stdio.h>
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	36 #include <stdlib.h>
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	37 #include <string.h>
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	38
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	39 #include "SDL_sound.h"
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	40
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	41 #define __SDL_SOUND_INTERNAL__
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	42 #include "SDL_sound_internal.h"
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	43
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	44 #include "mikmod.h"
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	45
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	46
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	47 static int MIKMOD_init(void);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	48 static void MIKMOD_quit(void);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	49 static int MIKMOD_open(Sound_Sample sample, const char ext);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	50 static void MIKMOD_close(Sound_Sample *sample);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	51 static Uint32 MIKMOD_read(Sound_Sample *sample);
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	52 static int MIKMOD_rewind(Sound_Sample *sample);
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 305 diff changeset	53 static int MIKMOD_seek(Sound_Sample *sample, Uint32 ms);
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	54
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	55 static const char *extensions_mikmod[] =
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	56 {
211 b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	57 "669", /* Composer 669 */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	58 "AMF", /* DMP Advanced Module Format */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	59 "DSM", /* DSIK internal format */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	60 "FAR", /* Farandole module */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	61 "GDM", /* General DigiMusic module */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	62 "IMF", /* Imago Orpheus module */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	63 "IT", /* Impulse tracker */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	64 "M15", /* 15 instrument MOD / Ultimate Sound Tracker (old M15 format) */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	65 "MED", /* Amiga MED module */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	66 "MOD", /* Generic MOD (Protracker, StarTracker, FastTracker, etc) */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	67 "MTM", /* MTM module */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	68 "OKT", /* Oktalyzer module */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	69 "S3M", /* Screamtracker module */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	70 "STM", /* Screamtracker 2 module */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	71 "STX", /* STMIK 0.2 module */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	72 "ULT", /* Ultratracker module */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	73 "UNI", /* UNIMOD - libmikmod's and APlayer's internal module format */
b35c04e4691e Patched to select streams to handle more carefully. Ryan C. Gordon <icculus@icculus.org> parents: 207 diff changeset	74 "XM", /* Fasttracker module */
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	75 NULL
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	76 };
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	77
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	78 const Sound_DecoderFunctions __Sound_DecoderFunctions_MIKMOD =
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	79 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	80 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	81 extensions_mikmod,
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	82 "Play modules through MikMod",
536 8a814bbbedfa Merged r544:545 from branches/stable-1.0: converted to UTF-8 encoding. Ryan C. Gordon <icculus@icculus.org> parents: 477 diff changeset	83 "Torbjörn Andersson <d91tan@Update.UU.SE>",
473 1edb89260487 Fixed MikMod URL. Ryan C. Gordon <icculus@icculus.org> parents: 434 diff changeset	84 "http://mikmod.raphnet.net/"
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	85 },
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	86
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	87 MIKMOD_init, /* init() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	88 MIKMOD_quit, /* quit() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	89 MIKMOD_open, /* open() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	90 MIKMOD_close, /* close() method */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	91 MIKMOD_read, /* read() method */
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 305 diff changeset	92 MIKMOD_rewind, /* rewind() method */
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 305 diff changeset	93 MIKMOD_seek /* seek() method */
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	94 };
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	95
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	96
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	97 /* Make MikMod read from a RWops... */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	98
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	99 typedef struct MRWOPSREADER {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	100 MREADER core;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	101 Sound_Sample *sample;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	102 int end;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	103 } MRWOPSREADER;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	104
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	105 static BOOL _mm_RWopsReader_eof(MREADER *reader)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	106 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	107 MRWOPSREADER rwops_reader = (MRWOPSREADER ) reader;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	108 Sound_Sample *sample = rwops_reader->sample;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	109 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	110 int pos = SDL_RWtell(internal->rw);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	111
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	112 if (rwops_reader->end == pos)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	113 return(1);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	114
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	115 return(0);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	116 } /* _mm_RWopsReader_eof */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	117
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	118
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	119 static BOOL _mm_RWopsReader_read(MREADER reader, void ptr, size_t size)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	120 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	121 MRWOPSREADER rwops_reader = (MRWOPSREADER ) reader;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	122 Sound_Sample *sample = rwops_reader->sample;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	123 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	124 return(SDL_RWread(internal->rw, ptr, size, 1));
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	125 } /* _mm_RWopsReader_Read */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	126
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	127
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	128 static int _mm_RWopsReader_get(MREADER *reader)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	129 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	130 char buf;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	131 MRWOPSREADER rwops_reader = (MRWOPSREADER ) reader;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	132 Sound_Sample *sample = rwops_reader->sample;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	133 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	134
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	135 if (SDL_RWread(internal->rw, &buf, 1, 1) != 1)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	136 return(EOF);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	137
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	138 return((int) buf);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	139 } /* _mm_RWopsReader_get */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	140
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	141
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	142 static BOOL _mm_RWopsReader_seek(MREADER *reader, long offset, int whence)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	143 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	144 MRWOPSREADER rwops_reader = (MRWOPSREADER ) reader;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	145 Sound_Sample *sample = rwops_reader->sample;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	146 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	147
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	148 return(SDL_RWseek(internal->rw, offset, whence));
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	149 } /* _mm_RWopsReader_seek */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	150
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	151
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	152 static long _mm_RWopsReader_tell(MREADER *reader)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	153 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	154 MRWOPSREADER rwops_reader = (MRWOPSREADER ) reader;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	155 Sound_Sample *sample = rwops_reader->sample;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	156 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	157
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	158 return(SDL_RWtell(internal->rw));
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	159 } /* _mm_RWopsReader_tell */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	160
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	161
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	162 static MREADER _mm_new_rwops_reader(Sound_Sample sample)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	163 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	164 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	165
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	166 MRWOPSREADER reader = (MRWOPSREADER ) malloc(sizeof (MRWOPSREADER));
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	167 if (reader != NULL)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	168 {
397 077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	169 int failed_seek = 1;
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	170 int here;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	171 reader->core.Eof = _mm_RWopsReader_eof;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	172 reader->core.Read = _mm_RWopsReader_read;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	173 reader->core.Get = _mm_RWopsReader_get;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	174 reader->core.Seek = _mm_RWopsReader_seek;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	175 reader->core.Tell = _mm_RWopsReader_tell;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	176 reader->sample = sample;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	177
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	178 /* RWops does not explicitly support an eof check, so we shall find
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	179 the end manually - this requires seek support for the RWop */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	180 here = SDL_RWtell(internal->rw);
397 077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	181 if (here != -1)
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	182 {
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	183 reader->end = SDL_RWseek(internal->rw, 0, SEEK_END);
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	184 if (reader->end != -1)
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	185 {
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	186 /* Move back */
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	187 if (SDL_RWseek(internal->rw, here, SEEK_SET) != -1)
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	188 failed_seek = 0;
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	189 } /* if */
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	190 } /* if */
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	191
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	192 if (failed_seek)
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	193 {
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	194 free(reader);
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	195 reader = NULL;
077cdba5d5f6 FIXME cleanup. Ryan C. Gordon <icculus@icculus.org> parents: 375 diff changeset	196 } /* if */
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	197 } /* if */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	198
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	199 return((MREADER *) reader);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	200 } /* _mm_new_rwops_reader */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	201
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	202
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	203 static void _mm_delete_rwops_reader(MREADER *reader)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	204 {
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	205 /* SDL_sound will delete the RWops and sample at a higher level... */
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	206 if (reader != NULL)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	207 free(reader);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	208 } /* _mm_delete_rwops_reader */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	209
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	210
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	211
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	212 static int MIKMOD_init(void)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	213 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	214 MikMod_RegisterDriver(&drv_nos);
434 c09cf7c046cd Prevent a clash between SDL_mixer and SDL_sound in mikmod initialization. Ryan C. Gordon <icculus@icculus.org> parents: 397 diff changeset	215
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	216 /*
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	217 * Quick and dirty hack to prevent an infinite loop problem
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	218 * found when using SDL_mixer and SDL_sound together and
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	219 * both have MikMod compiled in. So, check to see if
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	220 * MikMod has already been registered first before calling
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	221 * RegisterAllLoaders()
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	222 */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	223 if (MikMod_InfoLoader() == NULL)
434 c09cf7c046cd Prevent a clash between SDL_mixer and SDL_sound in mikmod initialization. Ryan C. Gordon <icculus@icculus.org> parents: 397 diff changeset	224 {
c09cf7c046cd Prevent a clash between SDL_mixer and SDL_sound in mikmod initialization. Ryan C. Gordon <icculus@icculus.org> parents: 397 diff changeset	225 MikMod_RegisterAllLoaders();
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	226 } /* if */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	227
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	228 /*
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	229 * Both DMODE_SOFT_MUSIC and DMODE_16BITS should be set by default,
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	230 * so this is just for clarity. I haven't experimented with any of
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	231 * the other flags. There are a few which are said to give better
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	232 * sound quality.
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	233 */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	234 md_mode \|= (DMODE_SOFT_MUSIC \| DMODE_16BITS);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	235 md_mixfreq = 0;
375 6095d0a52a20 Added a reverb setting, moved assert.h include out. Ryan C. Gordon <icculus@icculus.org> parents: 351 diff changeset	236 md_reverb = 1;
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	237
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	238 BAIL_IF_MACRO(MikMod_Init(""), MikMod_strerror(MikMod_errno), 0);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	239
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	240 return(1); /* success. */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	241 } /* MIKMOD_init */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	242
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	243
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	244 static void MIKMOD_quit(void)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	245 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	246 MikMod_Exit();
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	247 md_mixfreq = 0;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	248 } /* MIKMOD_quit */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	249
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	250
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	251 static int MIKMOD_open(Sound_Sample sample, const char ext)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	252 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	253 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	254 MREADER *reader;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	255 MODULE *module;
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	256 Uint32 i; /* temp counter for time computation */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	257 double segment_time = 0.0; /* temp holder for time */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	258
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	259 reader = _mm_new_rwops_reader(sample);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	260 BAIL_IF_MACRO(reader == NULL, ERR_OUT_OF_MEMORY, 0);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	261 module = Player_LoadGeneric(reader, 64, 0);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	262 _mm_delete_rwops_reader(reader);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	263 BAIL_IF_MACRO(module == NULL, "MIKMOD: Not a module file.", 0);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	264
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	265 module->extspd = 1;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	266 module->panflag = 1;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	267 module->wrap = 0;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	268 module->loop = 0;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	269
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	270 if (md_mixfreq == 0)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	271 md_mixfreq = (!sample->desired.rate) ? 44100 : sample->desired.rate;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	272
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	273 sample->actual.channels = 2;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	274 sample->actual.rate = md_mixfreq;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	275 sample->actual.format = AUDIO_S16SYS;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	276 internal->decoder_private = (void *) module;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	277
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	278 Player_Start(module);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	279 Player_SetPosition(0);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	280
312 498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	281 sample->flags = SOUND_SAMPLEFLAG_NONE;
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	282
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	283 /*
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	284 * module->sngtime = current song time in 2^-10 seconds
477 3e705c9180e5 Fixed binary compatibility, added Sound_GetDuration(). Ryan C. Gordon <icculus@icculus.org> parents: 474 diff changeset	285 * internal->total_time = (module->sngtime * 1000) / (1<<10)
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	286 */
477 3e705c9180e5 Fixed binary compatibility, added Sound_GetDuration(). Ryan C. Gordon <icculus@icculus.org> parents: 474 diff changeset	287 internal->total_time = (module->sngtime * 1000) / (1<<10);
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	288
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	289 SNDDBG(("MIKMOD: Name: %s\n", module->songname));
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	290 SNDDBG(("MIKMOD: Type: %s\n", module->modtype));
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	291 SNDDBG(("MIKMOD: Accepting data stream\n"));
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	292
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	293
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	294 /*
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	295 * This is a quick and dirty way for getting the play time
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	296 * of a file. This will often be wrong because the tracker format
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	297 * allows for so much. If you want a better one, use ModPlug,
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	298 * demand that the Mikmod people write better functionality,
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	299 * or write a more complicated version of the code below.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	300 *
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	301 * There are two dumb ways to compute the length. The really
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	302 * dumb way is to look at the header and take the initial
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	303 * speed/tempo values. However, speed values can change throughout
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	304 * the file. The slightly smarter way is to iterate through
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	305 * all the positions and add up each segment's time based
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	306 * on the idea that each segment will give us its own
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	307 * speed value. The hope is that this is more accurate.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	308 * However, this demands that the file be seekable
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	309 * and that we can change the position of the sample.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	310 * Depending on the assumptions of SDL_sound, this block
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	311 * of code should be enabled or disabled. If disabled,
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	312 * you still can make the computations doing the first method.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	313 * For now, we will assume it's acceptable to seek a Mod file
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	314 * since this is essentially how Modplug also does it.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	315 *
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	316 * Keep in mind that this will be incorrect for loops, jumps, short
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	317 * patterns and other features.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	318 */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	319 sample->flags \|= SOUND_SAMPLEFLAG_CANSEEK;
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	320
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	321 /*
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	322 * For each position (which corresponds to a particular pattern),
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	323 * get the speed values and compute the time length of the segment
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	324 */
477 3e705c9180e5 Fixed binary compatibility, added Sound_GetDuration(). Ryan C. Gordon <icculus@icculus.org> parents: 474 diff changeset	325 internal->total_time = 0;
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	326 for (i = 0; i < module->numpos; i++)
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	327 {
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	328 Player_SetPosition(i);
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	329 /* Must call update, or the speed values won't get reset */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	330 MikMod_Update();
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	331 /* Now the magic formula:
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	332 * Multiply the number of positions by the
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	333 * Number of rows (usually 64 but can be different) by the
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	334 * time it takes to read one row (1/50)
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	335 * by the speed by the
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	336 * magic reference beats per minute / the beats per minute
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	337 *
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	338 * We're using positions instead of patterns because in our
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	339 * test cases, this seems to be the correct value for the
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	340 * number of sections you hear during normal playback.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	341 * They typically map to a fewer number of patterns
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	342 * where some patterns get replayed multiple times
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	343 * in a song (think chorus). Since we're in a for-loop,
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	344 * the multiplication is implicit while we're adding
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	345 * all the segments.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	346 *
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	347 * From a tracker format spec, it seems that 64 rows
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	348 * is the normal (00-3F), but I've seen songs that
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	349 * either have less or are jumping positions in the
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	350 * middle of a pattern. It looks like Mikmod might
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	351 * reveal this number for us.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	352 *
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	353 * According to the spec, it seems that a speed of 1
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	354 * corresponds to reading 1 row in 50 ticks. However,
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	355 * I'm not sure if ticks are real seconds or this
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	356 * notion of second units:
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	357 * Assuming that it's just normal seconds, we get 1/50 = 0.02.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	358 *
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	359 * The current speed and current tempo (beats per minute)
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	360 * we can just grab. However, we need a magic number
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	361 * to figure out what the tempo is based on. Our primitive
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	362 * stopwatch results and intuition seem to imply 120-130bpm
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	363 * is the magic number. Looking at the majority of tracker
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	364 * files I have, 125 seems to be the common value. Furthermore
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	365 * most (if not all) of my Future Crew .S3M (Scream Tracker 3)
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	366 * files also use 125. Since they invented that format,
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	367 * I'll also assume that's the base number.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	368 */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	369 if(module->bpm == 0)
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	370 {
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	371 /*
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	372 * Should never get here, but I don't want any
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	373 * divide by zero errors
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	374 */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	375 continue;
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	376 } /* if */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	377 segment_time += (module->numrow * .02 * module->sngspd *
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	378 125.0 / module->bpm);
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	379 } /* for */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	380 /* Now convert to milliseconds and store the value */
477 3e705c9180e5 Fixed binary compatibility, added Sound_GetDuration(). Ryan C. Gordon <icculus@icculus.org> parents: 474 diff changeset	381 internal->total_time = (Sint32)(segment_time * 1000);
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	382
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	383 /* Reset the sample to the beginning */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	384 Player_SetPosition(0);
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	385 MikMod_Update();
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	386
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	387 return(1); /* we'll handle this data. */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	388 } /* MIKMOD_open */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	389
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	390
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	391 static void MIKMOD_close(Sound_Sample *sample)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	392 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	393 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	394 MODULE module = (MODULE ) internal->decoder_private;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	395
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	396 Player_Free(module);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	397 } /* MIKMOD_close */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	398
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	399
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	400 static Uint32 MIKMOD_read(Sound_Sample *sample)
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	401 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	402 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	403 MODULE module = (MODULE ) internal->decoder_private;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	404
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	405 /* Switch to the current module, stopping any previous one. */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	406 Player_Start(module);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	407 if (!Player_Active())
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	408 {
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	409 sample->flags \|= SOUND_SAMPLEFLAG_EOF;
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	410 return(0);
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	411 } /* if */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	412 return((Uint32) VC_WriteBytes(internal->buffer, internal->buffer_size));
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	413 } /* MIKMOD_read */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	414
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	415
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	416 static int MIKMOD_rewind(Sound_Sample *sample)
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	417 {
231 d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	418 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	419 MODULE module = (MODULE ) internal->decoder_private;
d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	420
d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	421 Player_Start(module);
d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	422 Player_SetPosition(0);
d3dc34315ac7 Rewind method implemented by Torbj�rn. Ryan C. Gordon <icculus@icculus.org> parents: 221 diff changeset	423 return(1);
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	424 } /* MIKMOD_rewind */
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	425
c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	426
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 305 diff changeset	427 static int MIKMOD_seek(Sound_Sample *sample, Uint32 ms)
c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 305 diff changeset	428 {
312 498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	429 Sound_SampleInternal internal = (Sound_SampleInternal ) sample->opaque;
498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	430 MODULE module = (MODULE ) internal->decoder_private;
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	431 double last_time = 0.0;
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	432 double current_time = 0.0;
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	433 double target_time;
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	434 Uint32 i;
312 498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	435
498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	436 /*
498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	437 * Heaven may know what the argument to Player_SetPosition() is.
498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	438 * I, however, haven't the faintest idea.
498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	439 */
498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	440 Player_Start(module);
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	441
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	442 /*
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	443 * Mikmod only lets you seek to the beginning of a pattern.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	444 * This means we'll get very coarse grain seeks. The
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	445 * value we pass to SetPosition is a value between 0
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	446 * and the number of positions in the file. The
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	447 * dumb approach would be to take our total_time that
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	448 * we've already calculated and divide it up by the
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	449 * number of positions and seek to the position that results.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	450 * However, because songs can alter their speed/tempo during
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	451 * playback, different patterns in the song can take
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	452 * up different amounts of time. So the slightly
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	453 * smarter approach is to repeat what was done in the
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	454 * total_time computation and traverse through the file
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	455 * until we find the closest position.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	456 * The follwing is basically cut and paste from the
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	457 * open function.
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	458 */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	459 if (ms == 0) /* Check end conditions to simplify things */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	460 {
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	461 Player_SetPosition(0);
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	462 return(1);
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	463 } /* if */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	464
477 3e705c9180e5 Fixed binary compatibility, added Sound_GetDuration(). Ryan C. Gordon <icculus@icculus.org> parents: 474 diff changeset	465 if (ms >= internal->total_time)
474 c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	466 Player_SetPosition(module->numpos);
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	467
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	468 /* Convert time to seconds (double) to make comparisons easier */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	469 target_time = ms / 1000.0;
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	470
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	471 for (i = 0; i < module->numpos; i++)
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	472 {
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	473 Player_SetPosition(i);
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	474 /* Must call update, or the speed values won't get reset */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	475 MikMod_Update();
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	476 /* Divide by zero check */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	477 if(module->bpm == 0)
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	478 continue;
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	479 last_time = current_time;
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	480 /* See the notes in the open function about the formula */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	481 current_time += (module->numrow * .02
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	482 * module->sngspd * 125.0 / module->bpm);
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	483 if(target_time <= current_time)
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	484 break; /* We now have our interval, so break out */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	485 } /* for */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	486
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	487 if( (target_time-last_time) > (current_time-target_time) )
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	488 {
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	489 /* The target time is closer to the higher position, so go there */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	490 Player_SetPosition(i+1);
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	491 } /* if */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	492 else
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	493 {
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	494 /* The target time is closer to the lower position, so go there */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	495 Player_SetPosition(i);
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	496 } /* else */
c66080364dff Most decoders now report total sample play time, now. Technically, this Ryan C. Gordon <icculus@icculus.org> parents: 473 diff changeset	497
312 498240aa76f1 Seek implementations. Ryan C. Gordon <icculus@icculus.org> parents: 306 diff changeset	498 return(1);
306 c97be6e1bd27 Added framework for Sound_Seek() support. Ryan C. Gordon <icculus@icculus.org> parents: 305 diff changeset	499 } /* MIKMOD_seek */
221 c9772a9f5271 Initial implementation or stubs for rewind method. Other cleanups. Ryan C. Gordon <icculus@icculus.org> parents: 211 diff changeset	500
207 857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	501 #endif /* SOUND_SUPPORTS_MIKMOD */
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	502
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	503
857e53c5a2da Renamed from mod.c (see modplug.c for the OTHER mod decoder). Ryan C. Gordon <icculus@icculus.org> parents: diff changeset	504 /* end of mikmod.c ... */

Mercurial > SDL_sound_CoreAudio

annotate decoders/mikmod.c @ 590:1c8414cd5839