Mercurial > SDL_sound_CoreAudio

comparison decoders/modplug.c @ 376:51883cd1193e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
WinCE (PocketPC) stuff from Tyler, ModPlug settings maintanance by me.
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 02 Jul 2002 03:57:48 +0000
parents f72fd79d6e76
children fb519e6028e3
comparison
equal deleted inserted replaced
375:6095d0a52a20 376:51883cd1193e
38 #ifdef SOUND_SUPPORTS_MODPLUG 38 #ifdef SOUND_SUPPORTS_MODPLUG
39 39
40 #include <stdio.h> 40 #include <stdio.h>
41 #include <stdlib.h> 41 #include <stdlib.h>
42 #include <string.h> 42 #include <string.h>
43 #include <assert.h>
44 43
45 #include "SDL_sound.h" 44 #include "SDL_sound.h"
46 45
47 #define __SDL_SOUND_INTERNAL__ 46 #define __SDL_SOUND_INTERNAL__
48 #include "SDL_sound_internal.h" 47 #include "SDL_sound_internal.h"
107 MODPLUG_rewind, /* rewind() method */ 106 MODPLUG_rewind, /* rewind() method */
108 MODPLUG_seek /* seek() method */ 107 MODPLUG_seek /* seek() method */
109 }; 108 };
110 109
111 110
111 static ModPlug_Settings settings;
112 static Sound_AudioInfo current_audioinfo;
113 static unsigned int total_mods_decoding = 0;
114
112 static int MODPLUG_init(void) 115 static int MODPLUG_init(void)
113 { 116 {
114 ModPlug_Settings settings; 117 /*
115 118 * The settings will require some experimenting. I've borrowed some
116 /* The settings will require some experimenting. I've borrowed some 119 * of them from the XMMS ModPlug plugin.
117 * of them from the XMMS ModPlug plugin. 120 */
118 */ 121 settings.mFlags = MODPLUG_ENABLE_OVERSAMPLING;
119 settings.mFlags = 122
120 MODPLUG_ENABLE_OVERSAMPLING 123 #ifndef _WIN32_WCE
121 | MODPLUG_ENABLE_NOISE_REDUCTION 124 settings.mFlags |= MODPLUG_ENABLE_NOISE_REDUCTION |
122 | MODPLUG_ENABLE_REVERB 125 MODPLUG_ENABLE_REVERB |
123 | MODPLUG_ENABLE_MEGABASS 126 MODPLUG_ENABLE_MEGABASS |
124 | MODPLUG_ENABLE_SURROUND; 127 MODPLUG_ENABLE_SURROUND;
125 settings.mChannels = 2; 128
126 settings.mBits = 16;
127 settings.mFrequency = 44100;
128 settings.mResamplingMode = MODPLUG_RESAMPLE_FIR;
129 settings.mReverbDepth = 30; 129 settings.mReverbDepth = 30;
130 settings.mReverbDelay = 100; 130 settings.mReverbDelay = 100;
131 settings.mBassAmount = 40; 131 settings.mBassAmount = 40;
132 settings.mBassRange = 30; 132 settings.mBassRange = 30;
133 settings.mSurroundDepth = 20; 133 settings.mSurroundDepth = 20;
134 settings.mSurroundDelay = 20; 134 settings.mSurroundDelay = 20;
135 #endif
136
137 settings.mChannels = 2;
138 settings.mBits = 16;
139 settings.mFrequency = 44100;
140 settings.mResamplingMode = MODPLUG_RESAMPLE_FIR;
135 settings.mLoopCount = 0; 141 settings.mLoopCount = 0;
142
143 current_audioinfo.channels = 2;
144 current_audioinfo.rate = 44100;
145 current_audioinfo.format = AUDIO_S16SYS;
146 total_mods_decoding = 0;
136 147
137 ModPlug_SetSettings(&settings); 148 ModPlug_SetSettings(&settings);
138 return(1); /* success. */ 149 return(1); /* success. */
139 } /* MODPLUG_init */ 150 } /* MODPLUG_init */
140 151
141 152
142 static void MODPLUG_quit(void) 153 static void MODPLUG_quit(void)
143 { 154 {
155 assert(total_mods_decoding == 0);
144 /* it's a no-op. */ 156 /* it's a no-op. */
145 } /* MODPLUG_quit */ 157 } /* MODPLUG_quit */
146 158
147 159
148 /* 160 /*
179 SNDDBG(("MODPLUG: Unrecognized file type: %s\n", ext)); 191 SNDDBG(("MODPLUG: Unrecognized file type: %s\n", ext));
180 Sound_SetError("MODPLUG: Not a module file."); 192 Sound_SetError("MODPLUG: Not a module file.");
181 return(0); 193 return(0);
182 } /* if */ 194 } /* if */
183 195
184 /* ModPlug needs the entire stream in one big chunk. I don't like it, 196 /*
185 * but I don't think there's any way around it. 197 * ModPlug needs the entire stream in one big chunk. I don't like it,
198 * but I don't think there's any way around it.
186 */ 199 */
187 data = (Uint8 *) malloc(CHUNK_SIZE); 200 data = (Uint8 *) malloc(CHUNK_SIZE);
188 BAIL_IF_MACRO(data == NULL, ERR_OUT_OF_MEMORY, 0); 201 BAIL_IF_MACRO(data == NULL, ERR_OUT_OF_MEMORY, 0);
189 size = 0; 202 size = 0;
190 203
197 data = (Uint8 *) realloc(data, size + CHUNK_SIZE); 210 data = (Uint8 *) realloc(data, size + CHUNK_SIZE);
198 BAIL_IF_MACRO(data == NULL, ERR_OUT_OF_MEMORY, 0); 211 BAIL_IF_MACRO(data == NULL, ERR_OUT_OF_MEMORY, 0);
199 } /* if */ 212 } /* if */
200 } while (retval > 0); 213 } while (retval > 0);
201 214
202 /* The buffer may be a bit too large, but that doesn't matter. I think 215 /*
203 * it's safe to free it as soon as ModPlug_Load() is finished anyway. 216 * It's only safe to change these settings when there're
217 * no other mods being decoded...
218 */
219 if (total_mods_decoding > 0) /* !!! FIXME: Should we mutex this? */
220 {
221 /* other mods decoding: use the same settings they are. */
222 memcpy(&sample->actual, &current_audioinfo, sizeof (Sound_AudioInfo));
223 } /* if */
224 else
225 {
226 /* no other mods decoding: define the new ModPlug output settings. */
227 memcpy(&sample->actual, &sample->desired, sizeof (Sound_AudioInfo));
228 if (sample->actual.rate == 0)
229 sample->actual.rate = 44100;
230 if (sample->actual.channels == 0)
231 sample->actual.channels = 2;
232 if (sample->actual.format == 0)
233 sample->actual.format = AUDIO_S16SYS;
234
235 memcpy(&current_audioinfo, &sample->actual, sizeof (Sound_AudioInfo));
236 settings.mChannels=sample->actual.channels;
237 settings.mFrequency=sample->actual.rate;
238 settings.mBits = sample->actual.format & 0xFF;
239 ModPlug_SetSettings(&settings);
240 } /* else */
241
242 /*
243 * The buffer may be a bit too large, but that doesn't matter. I think
244 * it's safe to free it as soon as ModPlug_Load() is finished anyway.
204 */ 245 */
205 module = ModPlug_Load((void *) data, size); 246 module = ModPlug_Load((void *) data, size);
206 free(data); 247 free(data);
207 BAIL_IF_MACRO(module == NULL, "MODPLUG: Not a module file.", 0); 248 BAIL_IF_MACRO(module == NULL, "MODPLUG: Not a module file.", 0);
208 249
209 SNDDBG(("MODPLUG: [%d ms] %s\n", 250 SNDDBG(("MODPLUG: [%d ms] %s\n",
210 ModPlug_GetLength(module), ModPlug_GetName(module))); 251 ModPlug_GetLength(module), ModPlug_GetName(module)));
211 252
212 sample->actual.channels = 2;
213 sample->actual.rate = 44100;
214 sample->actual.format = AUDIO_S16SYS;
215
216 internal->decoder_private = (void *) module; 253 internal->decoder_private = (void *) module;
217 sample->flags = SOUND_SAMPLEFLAG_CANSEEK; 254 sample->flags = SOUND_SAMPLEFLAG_CANSEEK;
255
256 total_mods_decoding++; /* !!! FIXME: Should we mutex this? */
218 257
219 SNDDBG(("MODPLUG: Accepting data stream\n")); 258 SNDDBG(("MODPLUG: Accepting data stream\n"));
220 return(1); /* we'll handle this data. */ 259 return(1); /* we'll handle this data. */
221 } /* MODPLUG_open */ 260 } /* MODPLUG_open */
222 261
223 262
224 static void MODPLUG_close(Sound_Sample *sample) 263 static void MODPLUG_close(Sound_Sample *sample)
225 { 264 {
226 Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque; 265 Sound_SampleInternal *internal = (Sound_SampleInternal *) sample->opaque;
227 ModPlugFile *module = (ModPlugFile *) internal->decoder_private; 266 ModPlugFile *module = (ModPlugFile *) internal->decoder_private;
267 total_mods_decoding--;
228 268
229 ModPlug_Unload(module); 269 ModPlug_Unload(module);
230 } /* MODPLUG_close */ 270 } /* MODPLUG_close */
231 271
232 272