Mercurial > SDL_sound_CoreAudio
annotate decoders/modplug.c @ 349:f72fd79d6e76
Added URLs for official and unofficial versions of ModPlug.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Thu, 06 Jun 2002 18:56:05 +0000 |
| parents | 498240aa76f1 |
| children | 51883cd1193e |
| rev | line source |
|---|---|
| 208 | 1 /* |
| 2 * SDL_sound -- An abstract sound format decoding API. | |
| 3 * Copyright (C) 2001 Ryan C. Gordon. | |
| 4 * | |
| 5 * This library is free software; you can redistribute it and/or | |
| 6 * modify it under the terms of the GNU Lesser General Public | |
| 7 * License as published by the Free Software Foundation; either | |
| 8 * version 2.1 of the License, or (at your option) any later version. | |
| 9 * | |
| 10 * This library is distributed in the hope that it will be useful, | |
| 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 * Lesser General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU Lesser General Public | |
| 16 * License along with this library; if not, write to the Free Software | |
| 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 */ | |
| 19 | |
| 20 /* | |
| 21 * Module player for SDL_sound. This driver handles anything that ModPlug does. | |
| 22 * | |
|
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23 * ModPlug can be found at http://sourceforge.net/projects/modplug-xmms |
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24 * |
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25 * An unofficial version of modplug with all C++ dependencies removed is also |
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26 * available: http://freecraft.net/snapshots/ |
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27 * (Look for something like "libmodplug-johns-*.tar.gz") |
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28 * |
| 208 | 29 * Please see the file COPYING in the source's root directory. |
| 30 * | |
| 31 * This file written by Torbjörn Andersson (d91tan@Update.UU.SE) | |
| 32 */ | |
| 33 | |
| 34 #if HAVE_CONFIG_H | |
| 35 # include <config.h> | |
| 36 #endif | |
| 37 | |
| 38 #ifdef SOUND_SUPPORTS_MODPLUG | |
| 39 | |
| 40 #include <stdio.h> | |
| 41 #include <stdlib.h> | |
| 42 #include <string.h> | |
| 43 #include <assert.h> | |
| 44 | |
| 45 #include "SDL_sound.h" | |
| 46 | |
| 47 #define __SDL_SOUND_INTERNAL__ | |
| 48 #include "SDL_sound_internal.h" | |
| 49 | |
| 50 #include "modplug.h" | |
| 51 | |
| 52 | |
| 53 static int MODPLUG_init(void); | |
| 54 static void MODPLUG_quit(void); | |
| 55 static int MODPLUG_open(Sound_Sample *sample, const char *ext); | |
| 56 static void MODPLUG_close(Sound_Sample *sample); | |
| 57 static Uint32 MODPLUG_read(Sound_Sample *sample); | |
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58 static int MODPLUG_rewind(Sound_Sample *sample); |
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59 static int MODPLUG_seek(Sound_Sample *sample, Uint32 ms); |
| 208 | 60 |
| 61 static const char *extensions_modplug[] = | |
| 62 { | |
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63 /* The XMMS plugin is apparently able to load compressed modules as |
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64 * well, but libmodplug does not handle this. |
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65 */ |
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66 "669", /* Composer 669 / UNIS 669 module */ |
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67 "AMF", /* ASYLUM Music Format / Advanced Music Format(DSM) */ |
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68 "AMS", /* AMS module */ |
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69 "DBM", /* DigiBooster Pro Module */ |
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70 "DMF", /* DMF DELUSION DIGITAL MUSIC FILEFORMAT (X-Tracker) */ |
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71 "DSM", /* DSIK Internal Format module */ |
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72 "FAR", /* Farandole module */ |
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73 "IT", /* Impulse Tracker IT file */ |
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74 "MDL", /* DigiTracker module */ |
| 208 | 75 #if 0 |
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76 "J2B", /* Not implemented? What is it anyway? */ |
| 208 | 77 #endif |
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78 "MED", /* OctaMed MED file */ |
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79 "MOD", /* ProTracker / NoiseTracker MOD/NST file */ |
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80 "MT2", /* MadTracker 2.0 */ |
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81 "MTM", /* MTM file */ |
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82 "OKT", /* Oktalyzer module */ |
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83 "PTM", /* PTM PolyTracker module */ |
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84 "PSM", /* PSM module */ |
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85 "S3M", /* ScreamTracker file */ |
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86 "STM", /* ST 2.xx */ |
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87 "ULT", |
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88 "UMX", |
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89 "XM", /* FastTracker II */ |
| 208 | 90 NULL |
| 91 }; | |
| 92 | |
| 93 const Sound_DecoderFunctions __Sound_DecoderFunctions_MODPLUG = | |
| 94 { | |
| 95 { | |
| 96 extensions_modplug, | |
| 97 "Play modules through ModPlug", | |
| 98 "Torbjörn Andersson <d91tan@Update.UU.SE>", | |
| 99 "http://modplug-xmms.sourceforge.net/" | |
| 100 }, | |
| 101 | |
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102 MODPLUG_init, /* init() method */ |
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103 MODPLUG_quit, /* quit() method */ |
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104 MODPLUG_open, /* open() method */ |
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105 MODPLUG_close, /* close() method */ |
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106 MODPLUG_read, /* read() method */ |
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107 MODPLUG_rewind, /* rewind() method */ |
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108 MODPLUG_seek /* seek() method */ |
| 208 | 109 }; |
| 110 | |
| 111 | |
| 112 static int MODPLUG_init(void) | |
| 113 { | |
| 114 ModPlug_Settings settings; | |
| 115 | |
| 116 /* The settings will require some experimenting. I've borrowed some | |
| 117 * of them from the XMMS ModPlug plugin. | |
| 118 */ | |
| 119 settings.mFlags = | |
| 120 MODPLUG_ENABLE_OVERSAMPLING | |
| 121 | MODPLUG_ENABLE_NOISE_REDUCTION | |
| 122 | MODPLUG_ENABLE_REVERB | |
| 123 | MODPLUG_ENABLE_MEGABASS | |
| 124 | MODPLUG_ENABLE_SURROUND; | |
| 125 settings.mChannels = 2; | |
| 126 settings.mBits = 16; | |
| 127 settings.mFrequency = 44100; | |
| 128 settings.mResamplingMode = MODPLUG_RESAMPLE_FIR; | |
| 129 settings.mReverbDepth = 30; | |
| 130 settings.mReverbDelay = 100; | |
| 131 settings.mBassAmount = 40; | |
| 132 settings.mBassRange = 30; | |
| 133 settings.mSurroundDepth = 20; | |
| 134 settings.mSurroundDelay = 20; | |
| 135 settings.mLoopCount = 0; | |
| 136 | |
| 137 ModPlug_SetSettings(&settings); | |
| 138 return(1); /* success. */ | |
| 139 } /* MODPLUG_init */ | |
| 140 | |
| 141 | |
| 142 static void MODPLUG_quit(void) | |
| 143 { | |
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144 /* it's a no-op. */ |
| 208 | 145 } /* MODPLUG_quit */ |
| 146 | |
| 147 | |
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148 /* |
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149 * Most MOD files I've seen have tended to be a few hundred KB, even if some |
| 208 | 150 * of them were much smaller than that. |
| 151 */ | |
| 152 #define CHUNK_SIZE 65536 | |
| 153 | |
| 154 static int MODPLUG_open(Sound_Sample *sample, const char *ext) | |
| 155 { | |
| 156 Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; | |
| 157 ModPlugFile *module; | |
| 158 Uint8 *data; | |
| 159 size_t size; | |
| 160 Uint32 retval; | |
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161 int has_extension = 0; |
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162 int i; |
| 208 | 163 |
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164 /* |
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165 * Apparently ModPlug's loaders are too forgiving. They gladly accept |
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166 * streams that they shouldn't. For now, rely on file extension instead. |
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167 */ |
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168 for (i = 0; extensions_modplug[i] != NULL; i++) |
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169 { |
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170 if (__Sound_strcasecmp(ext, extensions_modplug[i]) == 0) |
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171 { |
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172 has_extension = 1; |
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173 break; |
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174 } /* if */ |
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175 } /* for */ |
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176 |
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177 if (!has_extension) |
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178 { |
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179 SNDDBG(("MODPLUG: Unrecognized file type: %s\n", ext)); |
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180 Sound_SetError("MODPLUG: Not a module file."); |
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181 return(0); |
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182 } /* if */ |
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183 |
| 208 | 184 /* ModPlug needs the entire stream in one big chunk. I don't like it, |
| 185 * but I don't think there's any way around it. | |
| 186 */ | |
| 187 data = (Uint8 *) malloc(CHUNK_SIZE); | |
| 188 BAIL_IF_MACRO(data == NULL, ERR_OUT_OF_MEMORY, 0); | |
| 189 size = 0; | |
| 190 | |
| 191 do | |
| 192 { | |
| 193 retval = SDL_RWread(internal->rw, &data[size], 1, CHUNK_SIZE); | |
| 194 size += retval; | |
| 195 if (retval == CHUNK_SIZE) | |
| 196 { | |
| 197 data = (Uint8 *) realloc(data, size + CHUNK_SIZE); | |
| 198 BAIL_IF_MACRO(data == NULL, ERR_OUT_OF_MEMORY, 0); | |
| 199 } /* if */ | |
| 200 } while (retval > 0); | |
| 201 | |
| 202 /* The buffer may be a bit too large, but that doesn't matter. I think | |
| 203 * it's safe to free it as soon as ModPlug_Load() is finished anyway. | |
| 204 */ | |
| 205 module = ModPlug_Load((void *) data, size); | |
| 206 free(data); | |
| 207 BAIL_IF_MACRO(module == NULL, "MODPLUG: Not a module file.", 0); | |
| 208 | |
| 209 SNDDBG(("MODPLUG: [%d ms] %s\n", | |
| 210 ModPlug_GetLength(module), ModPlug_GetName(module))); | |
| 211 | |
| 212 sample->actual.channels = 2; | |
| 213 sample->actual.rate = 44100; | |
| 214 sample->actual.format = AUDIO_S16SYS; | |
| 215 | |
| 216 internal->decoder_private = (void *) module; | |
| 312 | 217 sample->flags = SOUND_SAMPLEFLAG_CANSEEK; |
| 208 | 218 |
| 219 SNDDBG(("MODPLUG: Accepting data stream\n")); | |
| 220 return(1); /* we'll handle this data. */ | |
| 221 } /* MODPLUG_open */ | |
| 222 | |
| 223 | |
| 224 static void MODPLUG_close(Sound_Sample *sample) | |
| 225 { | |
| 226 Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; | |
| 227 ModPlugFile *module = (ModPlugFile *) internal->decoder_private; | |
| 228 | |
| 229 ModPlug_Unload(module); | |
| 230 } /* MODPLUG_close */ | |
| 231 | |
| 232 | |
| 233 static Uint32 MODPLUG_read(Sound_Sample *sample) | |
| 234 { | |
| 235 Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; | |
| 236 ModPlugFile *module = (ModPlugFile *) internal->decoder_private; | |
| 237 int retval; | |
| 238 | |
| 239 retval = ModPlug_Read(module, internal->buffer, internal->buffer_size); | |
| 240 if (retval == 0) | |
| 241 sample->flags |= SOUND_SAMPLEFLAG_EOF; | |
| 242 return(retval); | |
| 243 } /* MODPLUG_read */ | |
| 244 | |
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245 |
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246 static int MODPLUG_rewind(Sound_Sample *sample) |
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247 { |
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248 Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; |
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249 ModPlugFile *module = (ModPlugFile *) internal->decoder_private; |
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250 |
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251 ModPlug_Seek(module, 0); |
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252 return(1); |
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253 } /* MODPLUG_rewind */ |
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254 |
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255 |
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256 static int MODPLUG_seek(Sound_Sample *sample, Uint32 ms) |
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Added framework for Sound_Seek() support.
Ryan C. Gordon <icculus@icculus.org>
parents:
231
diff
changeset
|
257 { |
| 312 | 258 Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; |
| 259 ModPlugFile *module = (ModPlugFile *) internal->decoder_private; | |
| 260 | |
| 261 /* Assume that this will work. */ | |
| 262 ModPlug_Seek(module, ms); | |
| 263 return(1); | |
|
306
c97be6e1bd27
Added framework for Sound_Seek() support.
Ryan C. Gordon <icculus@icculus.org>
parents:
231
diff
changeset
|
264 } /* MODPLUG_seek */ |
|
c97be6e1bd27
Added framework for Sound_Seek() support.
Ryan C. Gordon <icculus@icculus.org>
parents:
231
diff
changeset
|
265 |
| 208 | 266 #endif /* SOUND_SUPPORTS_MODPLUG */ |
| 267 | |
| 268 | |
| 269 /* end of modplug.c ... */ |