Mercurial > hg > dmlib
annotate minijss/jssmod.c @ 948:698ee83bac98
Constify & cleanup.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Thu, 26 Feb 2015 18:01:14 +0200 |
| parents | b136ddc4070b |
| children | e22d4ceb6414 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * miniJSS - Module structure and handling routines | |
| 3 * Programmed and designed by Matti 'ccr' Hamalainen | |
| 4 * (C) Copyright 2006-2007 Tecnic Software productions (TNSP) | |
| 5 */ | |
| 6 #include "jssmod.h" | |
| 7 #include <string.h> | |
| 8 | |
| 9 | |
| 10 #ifndef JSS_LIGHT | |
| 948 | 11 |
| 12 /* Take given data until maxlen reached, make a string. | |
| 13 * Basically a bit like strndup(), except end marker byte | |
| 14 * can be specified. | |
| 0 | 15 */ |
| 948 | 16 char *jssASCIItoStr(const char * src, const char endByte, const size_t len) |
| 0 | 17 { |
| 18 size_t i, k; | |
| 19 char *res; | |
| 20 | |
| 948 | 21 for (i = 0; src[i] && i < len; i++); |
| 0 | 22 |
| 948 | 23 if ((res = dmMalloc(i + 1)) == NULL) |
| 0 | 24 return NULL; |
| 25 | |
| 948 | 26 for (k = 0; src[k] != endByte && k < i; k++) |
| 27 res[k] = src[k]; | |
| 0 | 28 |
| 29 res[k] = 0; | |
| 30 | |
| 31 return res; | |
| 32 } | |
| 33 | |
| 34 | |
| 35 /* Encodes a given 8-bit sample | |
| 36 */ | |
| 43 | 37 BOOL jssEncodeSample8(Uint8 * data, const size_t len, const int ops) |
| 0 | 38 { |
| 43 | 39 size_t count = len; |
| 0 | 40 Sint8 t, value = 0; |
| 41 | |
| 43 | 42 while (count--) |
| 0 | 43 { |
| 43 | 44 t = *data; |
| 0 | 45 |
| 46 if (ops & jsampFlipSign) | |
| 47 t ^= 0x80; | |
| 48 | |
| 49 if (ops & jsampDelta) | |
| 50 { | |
| 51 int n = t - value; | |
| 52 value = t; | |
| 53 t = n; | |
| 54 } | |
| 55 | |
| 43 | 56 *(data++) = t; |
| 0 | 57 } |
| 58 | |
| 59 return TRUE; | |
| 60 } | |
| 61 | |
| 62 | |
| 63 /* Decodes a given 16-bit sample | |
| 64 */ | |
| 43 | 65 BOOL jssEncodeSample16(Uint16 * data, const size_t len, const int ops) |
| 0 | 66 { |
| 67 // "Split" the 16-bit samples into 8-bit halves | |
| 68 if (ops & jsampSplit) | |
| 69 { | |
| 70 // Allocate temporary processing buffer | |
| 43 | 71 size_t count, bufSize = len * sizeof(Sint16); |
| 0 | 72 Uint8 *bp1, *bp2; |
| 43 | 73 Sint16 *sdata, *tmpBuf = dmMalloc(bufSize); |
| 0 | 74 if (tmpBuf == NULL) return FALSE; |
| 75 | |
| 76 sdata = tmpBuf; | |
| 43 | 77 bp1 = (Uint8 *) data; |
| 78 bp2 = bp1 + len; | |
| 79 count = len; | |
| 0 | 80 |
| 43 | 81 while (count--) |
| 0 | 82 { |
| 43 | 83 Sint16 t = (*sdata++); |
| 0 | 84 *bp1++ = t >> 8; |
| 85 *bp2++ = t & 0xff; | |
| 86 } | |
| 87 | |
| 43 | 88 memcpy(data, tmpBuf, bufSize); |
| 0 | 89 dmFree(tmpBuf); |
| 90 | |
| 43 | 91 return jssEncodeSample8((Uint8 *) data, bufSize, ops); |
| 0 | 92 } |
| 93 else | |
| 94 { | |
| 43 | 95 Sint16 t, p, value = 0, *sdata = (Sint16 *) data; |
| 96 size_t count = len; | |
| 0 | 97 |
| 43 | 98 while (count--) |
| 0 | 99 { |
| 100 if (ops & jsampSwapEndianess) | |
| 101 { | |
| 102 p = *sdata; | |
| 103 t = ((p >> 8) & 0xff) | ((p & 0xff) << 8); | |
| 743 | 104 } |
| 105 else | |
| 0 | 106 t = *sdata; |
| 107 | |
| 108 if (ops & jsampDelta) | |
| 109 { | |
| 110 int n = t - value; | |
| 111 value = t; | |
| 112 t = n; | |
| 113 } | |
| 114 | |
| 115 if (ops & jsampFlipSign) | |
| 116 t ^= 0x8000; | |
| 117 | |
| 118 *(sdata++) = t; | |
| 119 } | |
| 120 } | |
| 121 return TRUE; | |
| 122 } | |
|
44
064d1d1d5b0f
Add new functions, jssConvertSampleFromFP() and jssConvertSampleToFP().
Matti Hamalainen <ccr@tnsp.org>
parents:
43
diff
changeset
|
123 |
| 0 | 124 #endif |
| 125 | |
| 126 | |
| 127 /* Decodes a given 8-bit sample | |
| 128 */ | |
| 43 | 129 BOOL jssDecodeSample8(Uint8 * data, const size_t len, const int ops) |
| 0 | 130 { |
| 43 | 131 size_t count = len; |
| 0 | 132 Sint8 t, value = 0; |
| 133 | |
| 43 | 134 while (count--) |
| 0 | 135 { |
| 43 | 136 t = *data; |
| 0 | 137 |
| 138 if (ops & jsampDelta) | |
| 139 t = value = t + value; | |
| 140 | |
| 141 if (ops & jsampFlipSign) | |
| 142 t ^= 0x80; | |
| 143 | |
| 43 | 144 *(data++) = t; |
| 0 | 145 } |
| 146 return TRUE; | |
| 147 } | |
| 148 | |
| 149 | |
| 150 /* Decodes a given 16-bit sample | |
| 151 */ | |
| 43 | 152 BOOL jssDecodeSample16(Uint16 * data, const size_t len, const int ops) |
| 0 | 153 { |
| 154 if (ops & jsampSplit) | |
| 155 { | |
| 43 | 156 size_t count, bufSize = len * sizeof(Uint16); |
| 0 | 157 Uint8 *bp1, *bp2; |
| 158 Sint16 *tmpBuf, *sdata; | |
| 159 | |
| 43 | 160 if (!jssDecodeSample8((Uint8 *) data, bufSize, ops)) |
| 0 | 161 return FALSE; |
| 162 | |
| 163 tmpBuf = dmMalloc(bufSize); | |
| 164 if (tmpBuf == NULL) return FALSE; | |
| 43 | 165 memcpy(tmpBuf, data, bufSize); |
| 0 | 166 |
| 43 | 167 sdata = (Sint16 *) data; |
| 0 | 168 bp1 = (Uint8 *) tmpBuf; |
| 43 | 169 bp2 = bp1 + len; |
| 170 count = len; | |
| 171 while (count--) | |
| 0 | 172 { |
| 173 *sdata++ = (*bp1++ << 8) | (*bp2++ & 0xff); | |
| 174 } | |
| 175 | |
| 176 dmFree(tmpBuf); | |
| 177 } | |
| 178 else | |
| 179 { | |
| 43 | 180 Sint16 t, p, value = 0, *sdata = (Sint16 *) data; |
| 181 size_t count = len; | |
| 182 while (count--) | |
| 0 | 183 { |
| 184 if (ops & jsampSwapEndianess) | |
| 185 { | |
| 186 p = *sdata; | |
| 187 t = ((p >> 8) & 0xff) | ((p & 0xff) << 8); | |
| 743 | 188 } |
| 189 else | |
| 0 | 190 t = *sdata; |
| 191 | |
| 192 if (ops & jsampDelta) | |
| 193 t = value = t + value; | |
| 194 | |
| 195 if (ops & jsampFlipSign) | |
| 196 t ^= 0x8000; | |
| 197 | |
| 198 *(sdata++) = t; | |
| 199 } | |
| 200 } | |
| 201 return TRUE; | |
| 202 } | |
| 203 | |
|
49
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
204 |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
205 /* Convert sample data from U8 to S16 |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
206 */ |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
207 int jssConvertSampleTo16(void **dst, void * src, const size_t len) |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
208 { |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
209 size_t count = len; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
210 Uint8 *in = (Uint8 *) src; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
211 Sint16 *out; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
212 |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
213 *dst = out = dmMalloc(sizeof(Sint16) * len); |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
214 if (out == NULL) |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
215 return DMERR_MALLOC; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
216 |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
217 while (count--) |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
218 { |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
219 *(out++) = (*(in++) * 256) - 32768; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
220 } |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
221 |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
222 return DMERR_OK; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
223 } |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
224 |
| 743 | 225 |
|
49
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
226 /* Converts the given module in preparation for playing it. |
|
56
8725853609db
Remove the floating point mixing .. it wasn't so good idea after all.
Matti Hamalainen <ccr@tnsp.org>
parents:
51
diff
changeset
|
227 * This involves sample format conversion (8 to 16 bit, etc.) |
|
49
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
228 * |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
229 * NOTICE! The converted module can only be saved in JSSMOD |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
230 * format, but this is not recommended. |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
231 */ |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
232 int jssConvertModuleForPlaying(JSSModule *module) |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
233 { |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
234 int i; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
235 if (module == NULL) |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
236 return DMERR_NULLPTR; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
237 |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
238 // Convert instruments |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
239 for (i = 0; i < module->ninstruments; i++) |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
240 { |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
241 JSSInstrument *inst = module->instruments[i]; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
242 if (inst != NULL && inst->data != NULL) |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
243 { |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
244 int res; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
245 void *data = NULL; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
246 |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
247 if (inst->flags & jsf16bit) |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
248 continue; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
249 |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
250 if ((res = jssConvertSampleTo16(&data, inst->data, inst->size)) != DMERR_OK) |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
251 return res; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
252 |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
253 inst->flags |= jsf16bit; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
254 dmFree(inst->data); |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
255 inst->data = data; |
|
033c660c25f5
Restructure module playing, removing 8bit sample mixing (output can still be
Matti Hamalainen <ccr@tnsp.org>
parents:
44
diff
changeset
|
256 } |
|
44
064d1d1d5b0f
Add new functions, jssConvertSampleFromFP() and jssConvertSampleToFP().
Matti Hamalainen <ccr@tnsp.org>
parents:
43
diff
changeset
|
257 } |
|
064d1d1d5b0f
Add new functions, jssConvertSampleFromFP() and jssConvertSampleToFP().
Matti Hamalainen <ccr@tnsp.org>
parents:
43
diff
changeset
|
258 |
|
064d1d1d5b0f
Add new functions, jssConvertSampleFromFP() and jssConvertSampleToFP().
Matti Hamalainen <ccr@tnsp.org>
parents:
43
diff
changeset
|
259 return DMERR_OK; |
|
064d1d1d5b0f
Add new functions, jssConvertSampleFromFP() and jssConvertSampleToFP().
Matti Hamalainen <ccr@tnsp.org>
parents:
43
diff
changeset
|
260 } |
|
064d1d1d5b0f
Add new functions, jssConvertSampleFromFP() and jssConvertSampleToFP().
Matti Hamalainen <ccr@tnsp.org>
parents:
43
diff
changeset
|
261 |
|
064d1d1d5b0f
Add new functions, jssConvertSampleFromFP() and jssConvertSampleToFP().
Matti Hamalainen <ccr@tnsp.org>
parents:
43
diff
changeset
|
262 |
| 0 | 263 /* Allocates a new module structure or returns errorvalue if failed. |
| 264 * Memory is allocated only for the basic structure. Sample- and pattern | |
| 265 * areas must be allocated separately with appropriate routines. | |
| 266 */ | |
| 267 JSSModule *jssAllocateModule(void) | |
| 268 { | |
| 269 int i; | |
| 270 JSSModule *module; | |
| 271 | |
| 272 // Allocate module structure | |
| 273 module = dmMalloc0(sizeof(JSSModule)); | |
| 274 if (module == NULL) | |
| 275 return NULL; | |
| 276 | |
| 277 // Initialize structure | |
| 278 for (i = 0; i < jsetNChannels; i++) | |
| 279 module->defPanning[i] = jchPanMiddle; | |
| 280 | |
| 281 for (i = 0; i < jsetMaxOrders; i++) | |
| 282 module->orderList[i] = jsetOrderEnd; | |
| 283 | |
| 284 // Allocate mutex | |
| 285 #ifdef JSS_SUP_THREADS | |
| 286 module->mutex = dmCreateMutex(); | |
| 287 #endif | |
| 288 | |
| 289 return module; | |
| 290 } | |
| 291 | |
| 292 | |
| 293 /* Frees a given module structure, freeing all memory areas | |
| 294 * that were allocated for it (including patterns, samples, etc.) | |
| 295 */ | |
| 296 int jssFreeModule(JSSModule * module) | |
| 297 { | |
| 298 int i; | |
| 299 | |
| 300 if (module == NULL) | |
| 301 return DMERR_NULLPTR; | |
| 302 | |
| 303 // Free strings | |
| 304 #ifndef JSS_LIGHT | |
| 305 dmFree(module->moduleName); | |
| 306 dmFree(module->trackerName); | |
| 307 #endif | |
| 308 | |
| 309 // Free patterns | |
| 310 for (i = 0; i < module->npatterns; i++) | |
| 311 { | |
| 743 | 312 if (module->patterns[i] != NULL) |
| 0 | 313 { |
| 314 JSSPattern *pat = module->patterns[i]; | |
| 315 dmFree(pat->data); | |
| 316 dmFree(pat); | |
| 317 module->patterns[i] = NULL; | |
| 318 } | |
| 319 } | |
| 320 | |
|
286
a17e54015bd9
Fix a small memory leak, the special "empty" pattern was not being freed.
Matti Hamalainen <ccr@tnsp.org>
parents:
56
diff
changeset
|
321 // Free the "empty" pattern |
|
a17e54015bd9
Fix a small memory leak, the special "empty" pattern was not being freed.
Matti Hamalainen <ccr@tnsp.org>
parents:
56
diff
changeset
|
322 JSSPattern *pat = module->patterns[jsetMaxPatterns]; |
|
a17e54015bd9
Fix a small memory leak, the special "empty" pattern was not being freed.
Matti Hamalainen <ccr@tnsp.org>
parents:
56
diff
changeset
|
323 if (pat != NULL) |
|
a17e54015bd9
Fix a small memory leak, the special "empty" pattern was not being freed.
Matti Hamalainen <ccr@tnsp.org>
parents:
56
diff
changeset
|
324 { |
|
a17e54015bd9
Fix a small memory leak, the special "empty" pattern was not being freed.
Matti Hamalainen <ccr@tnsp.org>
parents:
56
diff
changeset
|
325 dmFree(pat->data); |
|
a17e54015bd9
Fix a small memory leak, the special "empty" pattern was not being freed.
Matti Hamalainen <ccr@tnsp.org>
parents:
56
diff
changeset
|
326 dmFree(pat); |
|
a17e54015bd9
Fix a small memory leak, the special "empty" pattern was not being freed.
Matti Hamalainen <ccr@tnsp.org>
parents:
56
diff
changeset
|
327 module->patterns[i] = NULL; |
|
a17e54015bd9
Fix a small memory leak, the special "empty" pattern was not being freed.
Matti Hamalainen <ccr@tnsp.org>
parents:
56
diff
changeset
|
328 } |
|
a17e54015bd9
Fix a small memory leak, the special "empty" pattern was not being freed.
Matti Hamalainen <ccr@tnsp.org>
parents:
56
diff
changeset
|
329 |
| 0 | 330 // Free instruments |
| 331 for (i = 0; i < module->ninstruments; i++) | |
| 332 { | |
| 743 | 333 if (module->instruments[i] != NULL) |
| 0 | 334 { |
| 335 JSSInstrument *inst = module->instruments[i]; | |
| 336 #ifndef JSS_LIGHT | |
| 337 dmFree(inst->desc); | |
| 338 #endif | |
| 339 dmFree(inst->data); | |
| 340 dmFree(inst); | |
| 341 module->instruments[i] = NULL; | |
| 342 } | |
| 343 } | |
| 344 | |
| 345 // Free extended instruments | |
| 346 for (i = 0; i < module->nextInstruments; i++) | |
| 347 { | |
| 743 | 348 if (module->extInstruments[i] != NULL) |
| 0 | 349 { |
| 350 JSSExtInstrument *ext = module->extInstruments[i]; | |
| 351 #ifndef JSS_LIGHT | |
| 352 dmFree(ext->desc); | |
| 353 #endif | |
| 354 dmFree(ext); | |
| 355 module->extInstruments[i] = NULL; | |
| 356 } | |
| 357 } | |
| 358 | |
| 359 // Free mutex | |
| 360 #ifdef JSS_SUP_THREADS | |
| 361 dmDestroyMutex(module->mutex); | |
| 362 #endif | |
| 363 | |
| 364 // Free the module structure | |
| 365 memset(module, 0, sizeof(JSSModule)); | |
| 366 dmFree(module); | |
| 367 | |
| 368 return DMERR_OK; | |
| 369 } | |
| 370 | |
| 371 | |
| 372 /* Allocates and initializes a internal pattern structure. | |
| 373 */ | |
| 743 | 374 JSSPattern *jssAllocatePattern(const int nrows, const int nchannels) |
| 0 | 375 { |
| 743 | 376 int row, chn; |
| 0 | 377 JSSPattern *res; |
| 378 JSSNote *pnote; | |
| 379 | |
| 380 // Check arguments | |
| 381 if (nrows <= 0 || nchannels <= 0) | |
| 382 JSSERROR(DMERR_INVALID_ARGS, NULL, "Invalid nrows=%i or nchannels=%i.\n", nrows, nchannels); | |
| 383 | |
| 384 // Allocate a pattern structure | |
| 385 res = dmMalloc0(sizeof(JSSPattern)); | |
| 386 if (res == NULL) | |
| 387 JSSERROR(DMERR_MALLOC, NULL, "Could not allocate pattern structure.\n"); | |
| 388 | |
| 389 // Allocate notedata | |
| 390 res->data = dmCalloc(nrows * nchannels, sizeof(JSSNote)); | |
| 391 if (res->data == NULL) | |
| 392 { | |
| 393 dmFree(res); | |
| 394 JSSERROR(DMERR_MALLOC, NULL, "Could not allocate pattern data (nrows=%i, nchannels=%i).\n", nrows, | |
| 395 nchannels); | |
| 396 } | |
| 397 | |
| 398 // Initialize | |
| 399 res->nrows = nrows; | |
| 400 res->nchannels = nchannels; | |
| 401 | |
| 402 pnote = res->data; | |
| 743 | 403 for (row = 0; row < nrows; row++) |
| 0 | 404 { |
| 743 | 405 for (chn = 0; chn < nchannels; chn++) |
| 0 | 406 { |
| 407 pnote->note = pnote->instrument = pnote->volume = | |
| 408 pnote->effect = pnote->param = jsetNotSet; | |
| 409 | |
| 410 pnote++; | |
| 411 } | |
| 412 } | |
| 413 | |
| 414 // OK, return pointer to struct | |
| 415 return res; | |
| 416 } | |
| 417 | |
| 418 | |
| 419 /* Allocates and initializes internal "normal" instrument structure. | |
| 420 */ | |
| 421 JSSInstrument *jssAllocateInstrument(void) | |
| 422 { | |
| 423 JSSInstrument *res; | |
| 424 | |
| 425 // Allocate a instrument structure | |
| 426 res = dmMalloc0(sizeof(JSSInstrument)); | |
| 427 if (res == NULL) | |
| 428 return NULL; | |
| 429 | |
| 430 return res; | |
| 431 } | |
| 432 | |
| 433 | |
| 434 /* Allocates and initializes "extended" instrument structure. | |
| 435 */ | |
| 436 JSSExtInstrument *jssAllocateExtInstrument(void) | |
| 437 { | |
| 438 int i; | |
| 439 JSSExtInstrument *res; | |
| 440 | |
| 441 // Allocate a instrument structure | |
| 442 res = dmMalloc0(sizeof(JSSExtInstrument)); | |
| 443 if (res == NULL) | |
| 444 return NULL; | |
| 445 | |
| 446 for (i = 0; i < jsetNNotes; i++) | |
| 447 { | |
| 448 res->sNumForNotes[i] = jsetNotSet; | |
| 449 } | |
| 450 | |
| 451 return res; | |
| 452 } |