Mercurial > hg > dmlib
annotate dmres.c @ 29:e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
resource data needs to be preloaded.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Sat, 29 Sep 2012 07:19:53 +0300 |
| parents | 21c14afbf63d |
| children | b2fe4301384d |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * dmlib | |
| 3 * -- Resource management | |
| 4 * Programmed and designed by Matti 'ccr' Hamalainen | |
| 5 * (C) Copyright 2003-2012 Tecnic Software productions (TNSP) | |
| 6 */ | |
| 7 #include "dmres.h" | |
| 8 #include <time.h> | |
| 9 | |
| 10 #if !defined(DMRES_PACKFS) && !defined(DMRES_STDIO) | |
| 11 #error At least one of DMRES_PACKFS, DMRES_STDIO must be defined. | |
| 12 #endif | |
| 13 | |
| 14 #define DMRES_LOCK(x) dmMutexLock(dfResourcesMutex) | |
| 15 #define DMRES_UNLOCK(x) dmMutexUnlock(dfResourcesMutex) | |
| 16 | |
| 17 | |
| 18 /* Global variables | |
| 19 */ | |
| 20 static BOOL dfResInitialized = FALSE; | |
| 21 static int dfResFlags = 0; | |
| 22 static char * dfResPath = NULL; | |
| 23 DMResource * dfResources = NULL; | |
| 24 DMMutex * dfResourcesMutex = NULL; | |
| 25 | |
| 26 | |
| 27 #ifdef DMRES_PACKFS | |
| 28 static DMPackFile *dfResPackFile = NULL; | |
| 29 static char * dfResPackFilename = NULL; | |
| 30 #endif | |
| 31 | |
| 32 | |
| 33 DMResource *dmres_new(const char *filename, int flags, size_t size) | |
| 34 { | |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
35 DMResource *node = dmMalloc0(sizeof(DMResource)); |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
36 if (node == NULL) |
| 0 | 37 return NULL; |
| 38 | |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
39 node->filename = dm_strdup(filename); |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
40 node->flags = flags; |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
41 node->dataSize = size; |
| 0 | 42 |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
43 return node; |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
44 } |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
45 |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
46 |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
47 void dmres_free_res_data(DMResource *node) |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
48 { |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
49 if (node->rdata != NULL && |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
50 node->rops != NULL && |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
51 node->rops->free != NULL) |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
52 { |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
53 node->rops->free(node); |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
54 } |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
55 |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
56 node->rdata = NULL; |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
57 node->flags &= !DMF_LOADED_RES; |
| 0 | 58 } |
| 59 | |
| 60 | |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
61 void dmres_free_raw_data(DMResource *node) |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
62 { |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
63 dmFree(node->data); |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
64 node->data = NULL; |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
65 node->flags &= !DMF_LOADED_RAW; |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
66 } |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
67 |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
68 |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
69 void dmres_purge_raw_data(DMResource *node) |
| 0 | 70 { |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
71 if ((node->flags & DMF_PRELOAD_RAW) == 0 && |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
72 (node->flags & DMF_LOADED_RAW) && |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
73 node->data != NULL) |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
74 dmres_free_raw_data(node); |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
75 } |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
76 |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
77 |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
78 void dmres_free(DMResource *node) |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
79 { |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
80 if (node != NULL) |
| 0 | 81 { |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
82 dmres_free_res_data(node); |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
83 dmres_free_raw_data(node); |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
84 dmFree(node->filename); |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
85 dmFree(node); |
| 0 | 86 } |
| 87 } | |
| 88 | |
| 89 | |
| 90 void dmres_insert(DMResource * node) | |
| 91 { | |
| 92 if (dfResources != NULL) | |
| 93 { | |
| 94 node->prev = dfResources->prev; | |
| 95 dfResources->prev->next = node; | |
| 96 dfResources->prev = node; | |
| 97 } | |
| 98 else | |
| 99 { | |
| 100 dfResources = node->prev = node; | |
| 101 } | |
| 102 | |
| 103 node->next = NULL; | |
| 104 } | |
| 105 | |
| 106 | |
| 107 void dmres_delete(DMResource * node) | |
| 108 { | |
| 109 if (node->prev) | |
| 110 node->prev->next = node->next; | |
| 111 | |
| 112 if (node->next) | |
| 113 node->next->prev = node->prev; | |
| 114 else | |
| 115 dfResources->prev = node->prev; | |
| 116 | |
| 117 node->prev = node->next = NULL; | |
| 118 } | |
| 119 | |
| 120 | |
| 121 DMResource * dmres_find(const char *filename) | |
| 122 { | |
| 123 DMResource *node, *found = NULL; | |
| 124 | |
| 125 DMRES_LOCK(); | |
| 126 | |
| 127 for (node = dfResources; node != NULL; node = node->next) | |
| 128 { | |
| 129 if (strcmp(node->filename, filename) == 0) | |
| 130 { | |
| 131 found = node; | |
| 132 break; | |
| 133 } | |
| 134 } | |
| 135 | |
| 136 DMRES_UNLOCK(); | |
| 137 | |
| 138 return found; | |
| 139 } | |
| 140 | |
| 141 | |
| 142 #ifdef DMRES_STDIO | |
| 143 /* Basic stdio file routines | |
| 144 */ | |
| 145 static int dm_stdio_fopen(DMResource *handle) | |
| 146 { | |
| 147 char *rfilename = dm_strdup_printf("%s%s", DMRES_DATA_PATH, handle->filename); | |
| 148 if (rfilename == NULL) | |
| 149 return DMERR_MALLOC; | |
| 150 | |
| 151 handle->fh = fopen(rfilename, "rb"); | |
| 152 dmFree(rfilename); | |
| 153 | |
| 154 handle->error = dmGetErrno(); | |
| 155 return (handle->fh != NULL) ? DMERR_OK : DMERR_FOPEN; | |
| 156 } | |
| 157 | |
| 158 | |
| 159 static void dm_stdio_fclose(DMResource * f) | |
| 160 { | |
| 161 if (f->fh != NULL) | |
| 162 { | |
| 163 fclose(f->fh); | |
| 164 f->fh = NULL; | |
| 165 } | |
| 166 } | |
| 167 | |
| 168 | |
| 169 static int dm_stdio_ferror(DMResource * f) | |
| 170 { | |
| 171 return f->error; | |
| 172 } | |
| 173 | |
| 174 | |
| 175 static int dm_stdio_fseek(DMResource *f, const off_t pos, const int whence) | |
| 176 { | |
| 177 int ret = fseek(f->fh, pos, whence); | |
| 178 f->error = dmGetErrno(); | |
| 179 return ret; | |
| 180 } | |
| 181 | |
| 182 | |
| 183 static off_t dm_stdio_fsize(DMResource *f) | |
| 184 { | |
| 185 off_t savePos, fileSize; | |
| 186 | |
| 187 // Check if the size is cached | |
| 188 if (f->dataSize != 0) | |
| 189 return f->dataSize; | |
| 190 | |
| 191 // Get file size | |
| 192 savePos = ftell(f->fh); | |
| 193 if (fseek(f->fh, 0L, SEEK_END) != 0) | |
| 194 { | |
| 195 f->error = dmGetErrno(); | |
| 196 return -1; | |
| 197 } | |
| 198 | |
| 199 fileSize = ftell(f->fh); | |
| 200 if (fseek(f->fh, savePos, SEEK_SET) != 0) | |
| 201 { | |
| 202 f->error = dmGetErrno(); | |
| 203 return -1; | |
| 204 } | |
| 205 | |
| 206 f->dataSize = fileSize; | |
| 207 return fileSize; | |
| 208 } | |
| 209 | |
| 210 | |
| 211 static off_t dm_stdio_ftell(DMResource * f) | |
| 212 { | |
| 213 return ftell(f->fh); | |
| 214 } | |
| 215 | |
| 216 | |
| 217 static BOOL dm_stdio_feof(DMResource * f) | |
| 218 { | |
| 219 return feof(f->fh); | |
| 220 } | |
| 221 | |
| 222 | |
| 223 static int dm_stdio_fgetc(DMResource * f) | |
| 224 { | |
| 225 int ret = fgetc(f->fh); | |
| 226 f->error = dmGetErrno(); | |
| 227 return ret; | |
| 228 } | |
| 229 | |
| 230 | |
| 231 static size_t dm_stdio_fread(void *ptr, size_t size, size_t nmemb, DMResource * f) | |
| 232 { | |
| 233 size_t ret = fread(ptr, size, nmemb, f->fh); | |
| 234 f->error = dmGetErrno(); | |
| 235 return ret; | |
| 236 } | |
| 237 | |
| 238 | |
| 239 static int dm_stdio_preload(DMResource *handle) | |
| 240 { | |
| 241 int ret = dm_stdio_fopen(handle); | |
| 242 if (ret != DMERR_OK) | |
| 243 return ret; | |
| 244 | |
| 245 dm_stdio_fsize(handle); | |
| 246 | |
| 247 handle->data = dmMalloc(handle->dataSize); | |
| 248 if (handle->data == NULL) | |
| 249 return DMERR_MALLOC; | |
| 250 | |
| 251 if (dm_stdio_fread(handle->data, sizeof(Uint8), handle->dataSize, handle) != handle->dataSize) | |
| 252 return DMERR_FREAD; | |
| 253 | |
| 254 return DMERR_OK; | |
| 255 } | |
| 256 | |
| 257 | |
| 258 DMResourceOps dfStdioFileOps = | |
| 259 { | |
| 260 dm_stdio_ferror, | |
| 261 dm_stdio_fseek, | |
| 262 dm_stdio_fsize, | |
| 263 dm_stdio_ftell, | |
| 264 dm_stdio_feof, | |
| 265 dm_stdio_fgetc, | |
| 266 dm_stdio_fread, | |
| 267 | |
| 268 dm_stdio_fopen, | |
| 269 dm_stdio_fclose, | |
| 270 dm_stdio_preload | |
| 271 }; | |
| 272 | |
| 273 DMResourceOps dfStdioFHOps = | |
| 274 { | |
| 275 dm_stdio_ferror, | |
| 276 dm_stdio_fseek, | |
| 277 dm_stdio_fsize, | |
| 278 dm_stdio_ftell, | |
| 279 dm_stdio_feof, | |
| 280 dm_stdio_fgetc, | |
| 281 dm_stdio_fread, | |
| 282 | |
| 283 NULL, | |
| 284 NULL, | |
| 285 NULL | |
| 286 }; | |
| 287 #endif | |
| 288 | |
| 289 | |
| 290 // Some mingw/windows headers define these as macros, which is bad for us | |
| 291 #ifdef __WIN32 | |
| 292 #undef ferror | |
| 293 #undef feof | |
| 294 #endif | |
| 295 | |
| 296 | |
| 297 /* | |
| 298 * PACK file routines | |
| 299 */ | |
| 300 #ifdef DMRES_PACKFS | |
| 301 static int dm_pack_preload(DMResource *handle) | |
| 302 { | |
| 303 DMPackEntry *node; | |
| 304 int res = DMERR_OK, cres, cdataLeft; | |
| 305 z_stream cstream; | |
| 306 Uint8 * cbuffer = NULL; | |
| 307 | |
| 308 // Search PACK nodelist for file | |
| 309 if ((node = dm_pack_find(dfResPackFile->entries, handle->filename)) == NULL) | |
| 310 { | |
| 311 dmError("Entry '%s' not found in PACK file.\n", handle->filename); | |
| 312 res = DMERR_NOT_FOUND; | |
| 313 goto error; | |
| 314 } | |
| 315 | |
| 316 // Seek to entry | |
| 317 if (fseek(dfResPackFile->file, node->offset, SEEK_SET) == -1) | |
| 318 { | |
| 319 dmError("Could not seek node position in PACK file.\n"); | |
| 320 res = DMERR_FSEEK; | |
| 321 goto error; | |
| 322 } | |
| 323 | |
| 324 // Allocate a structures and buffers | |
| 325 cbuffer = (Uint8 *) dmMalloc(DPACK_TMPSIZE); | |
| 326 if (cbuffer == NULL) | |
| 327 { | |
| 328 res = DMERR_MALLOC; | |
| 329 goto error; | |
| 330 } | |
| 331 | |
| 332 // Initialize fields | |
| 333 handle->dataOffset = 0; | |
| 334 handle->dataSize = node->size; | |
| 335 handle->data = (Uint8 *) dmMalloc(node->size); | |
| 336 if (handle->data == NULL) | |
| 337 { | |
| 338 res = DMERR_MALLOC; | |
| 339 goto error; | |
| 340 } | |
| 341 | |
| 342 // Initialize decompression | |
| 343 cstream.zalloc = (alloc_func) Z_NULL; | |
| 344 cstream.zfree = (free_func) Z_NULL; | |
| 345 cstream.opaque = (voidpf) Z_NULL; | |
| 346 cstream.next_out = handle->data; | |
| 347 cstream.avail_out = handle->dataSize; | |
| 348 cdataLeft = node->length; | |
| 349 cres = inflateInit(&(cstream)); | |
| 350 if (cres != Z_OK) | |
| 351 { | |
| 352 dmError("Could not initialize zlib stream inflation.\n"); | |
| 353 res = DMERR_INIT_FAIL; | |
| 354 goto error; | |
| 355 } | |
| 356 | |
| 357 // Uncompress the data | |
| 358 while (cdataLeft > 0 && | |
| 359 cstream.avail_out > 0 && cres == Z_OK) | |
| 360 { | |
| 361 cstream.avail_in = fread( | |
| 362 cbuffer, sizeof(Uint8), | |
| 363 (cdataLeft >= DPACK_TMPSIZE) ? DPACK_TMPSIZE : cdataLeft, | |
| 364 dfResPackFile->file); | |
| 365 | |
| 366 cdataLeft -= cstream.avail_in; | |
| 367 cstream.next_in = cbuffer; | |
| 368 cres = inflate(&cstream, Z_FULL_FLUSH); | |
| 369 } | |
| 370 | |
| 371 // Cleanup | |
| 372 inflateEnd(&(cstream)); | |
| 373 | |
| 374 error: | |
| 375 dmFree(cbuffer); | |
| 376 return res; | |
| 377 } | |
| 378 #endif | |
| 379 | |
| 380 | |
| 381 static void dm_mem_fclose(DMResource * f) | |
| 382 { | |
| 383 f->dataSize = 0; | |
| 384 f->dataOffset = 0; | |
| 385 dmFree(f->data); | |
| 386 f->data = NULL; | |
| 387 } | |
| 388 | |
| 389 | |
| 390 static int dm_mem_ferror(DMResource * f) | |
| 391 { | |
| 392 return f->error; | |
| 393 } | |
| 394 | |
| 395 | |
| 396 static int dm_mem_fseek(DMResource * f, const off_t offset, const int whence) | |
| 397 { | |
| 398 off_t newPos; | |
| 399 | |
| 400 // Calculate the new position | |
| 401 switch (whence) | |
| 402 { | |
| 403 case SEEK_SET: | |
| 404 newPos = offset; | |
| 405 break; | |
| 406 | |
| 407 case SEEK_CUR: | |
| 408 newPos = f->dataOffset + offset; | |
| 409 break; | |
| 410 | |
| 411 case SEEK_END: | |
| 412 newPos = f->dataSize + offset; | |
| 413 break; | |
| 414 | |
| 415 default: | |
| 416 return -1; | |
| 417 } | |
| 418 | |
| 419 // Set the new position | |
| 420 f->dataOffset = newPos; | |
| 421 | |
| 422 // Check the new position | |
| 423 if (newPos < 0 && (size_t) newPos >= f->dataSize) | |
| 424 return -1; | |
| 425 | |
| 426 return 0; | |
| 427 } | |
| 428 | |
| 429 | |
| 430 static off_t dm_mem_fsize(DMResource * f) | |
| 431 { | |
| 432 return f->dataSize; | |
| 433 } | |
| 434 | |
| 435 | |
| 436 static off_t dm_mem_ftell(DMResource * f) | |
| 437 { | |
| 438 return f->dataOffset; | |
| 439 } | |
| 440 | |
| 441 | |
| 442 static BOOL dm_mem_feof(DMResource * f) | |
| 443 { | |
| 444 // Check for EOF | |
| 445 if ((size_t) f->dataOffset <= f->dataSize) | |
| 446 return FALSE; | |
| 447 else | |
| 448 return TRUE; | |
| 449 } | |
| 450 | |
| 451 | |
| 452 static int dm_mem_fgetc(DMResource * f) | |
| 453 { | |
| 454 // Check for EOF | |
| 455 if ((size_t) f->dataOffset < f->dataSize) | |
| 456 return (int) f->data[f->dataOffset++]; | |
| 457 else | |
| 458 return EOF; | |
| 459 } | |
| 460 | |
| 461 | |
| 462 static size_t dm_mem_fread(void *buf, size_t size, size_t nmemb, DMResource * f) | |
| 463 { | |
| 464 size_t length = (size * nmemb); | |
| 465 | |
| 466 // Check if we can read the whole chunk | |
| 467 if (((size_t) f->dataOffset + length) >= f->dataSize) | |
| 468 { | |
| 469 nmemb = (f->dataSize - f->dataOffset) / size; | |
| 470 length = size * nmemb; | |
| 471 } | |
| 472 | |
| 473 memcpy(buf, f->data + f->dataOffset, length); | |
| 474 f->dataOffset += length; | |
| 475 return nmemb; | |
| 476 } | |
| 477 | |
| 478 | |
| 479 DMResourceOps dfPackFileOps = | |
| 480 { | |
| 481 dm_mem_ferror, | |
| 482 dm_mem_fseek, | |
| 483 dm_mem_fsize, | |
| 484 dm_mem_ftell, | |
| 485 dm_mem_feof, | |
| 486 dm_mem_fgetc, | |
| 487 dm_mem_fread, | |
| 488 | |
| 489 NULL, | |
| 490 dm_mem_fclose, | |
| 491 dm_pack_preload | |
| 492 }; | |
| 493 | |
| 494 | |
| 495 DMResourceOps dfMemIOFileOps = | |
| 496 { | |
| 497 dm_mem_ferror, | |
| 498 dm_mem_fseek, | |
| 499 dm_mem_fsize, | |
| 500 dm_mem_ftell, | |
| 501 dm_mem_feof, | |
| 502 dm_mem_fgetc, | |
| 503 dm_mem_fread, | |
| 504 | |
| 505 NULL, | |
| 506 NULL, | |
| 507 NULL | |
| 508 }; | |
| 509 | |
| 510 | |
| 511 /* FS file handling functions. These functions call the actual | |
| 512 * functions depending on where the file is located. | |
| 513 */ | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
514 static void dmf_init_fops(DMResource *handle) |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
515 { |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
516 // Check fops |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
517 if (handle->fops == NULL) |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
518 { |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
519 #ifdef DMRES_PACKFS |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
520 if (dfResFlags & DRF_USE_PACK) |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
521 handle->fops = &dfPackFileOps; |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
522 #ifdef DMRES_STDIO |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
523 else |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
524 handle->fops = &dfStdioFileOps; |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
525 #else |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
526 handle->fops = &dfPackFileOps; |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
527 #endif |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
528 |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
529 #else |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
530 handle->fops = &dfStdioFileOps; |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
531 #endif |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
532 } |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
533 } |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
534 |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
535 |
|
29
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
536 int dmf_preload(DMResource *handle) |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
537 { |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
538 int ret = DMERR_INIT_FAIL; |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
539 |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
540 // Check if we want to preload raw data? |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
541 if (((handle->flags & DMF_PRELOAD_RAW) || |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
542 (dfResFlags & DRF_PRELOAD_ALL)) && |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
543 (handle->flags & DMF_LOADED_RAW) == 0 && |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
544 handle->fops->preload != NULL) |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
545 { |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
546 ret = handle->fops->preload(handle); |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
547 if (ret == DMERR_OK) |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
548 { |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
549 handle->flags |= DMF_LOADED_RAW; |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
550 } |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
551 } |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
552 else |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
553 { |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
554 if (handle->fops->fopen != NULL) |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
555 ret = handle->fops->fopen(handle); |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
556 else |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
557 if (handle->fops->preload != NULL) |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
558 { |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
559 ret = handle->fops->preload(handle); |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
560 if (ret == DMERR_OK) |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
561 { |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
562 handle->flags |= DMF_LOADED_RAW; |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
563 } |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
564 } |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
565 } |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
566 |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
567 // Check if resource data is to be preloaded |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
568 if (((handle->flags & DMF_PRELOAD_RES) || (dfResFlags & DRF_PRELOAD_RES)) && |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
569 (handle->flags & DMF_LOADED_RES) == 0 && |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
570 handle->rops != NULL && |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
571 handle->rops->load != NULL) |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
572 { |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
573 ret = handle->rops->load(handle); |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
574 if (ret == DMERR_OK) |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
575 { |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
576 // Okay, mark as loaded |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
577 handle->flags |= DMF_LOADED_RES; |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
578 |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
579 // Check if we can purge the raw data now |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
580 if ((handle->flags & DMF_PERSIST) == 0) |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
581 dmres_purge_raw_data(handle); |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
582 } |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
583 } |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
584 |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
585 return ret; |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
586 } |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
587 |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
588 |
| 0 | 589 DMResource *dmf_open(const char *filename) |
| 590 { | |
| 591 int ret; | |
| 592 DMResource *handle; | |
| 593 | |
| 594 // Check master directory for resource | |
| 595 if ((handle = dmres_find(filename)) == NULL) | |
| 596 { | |
| 597 #ifdef DMRES_STDIO | |
| 598 // Hmm.. does not exist? Fall back to a stdio file | |
| 599 handle = dmres_new(filename, 0, 0); | |
| 600 if (handle == NULL) | |
| 601 return NULL; | |
| 602 | |
| 603 handle->fops = &dfStdioFileOps; | |
| 604 dmres_insert(handle); | |
| 605 #else | |
| 606 // Stdio not enabled, fail | |
| 607 return NULL; | |
| 608 #endif | |
| 609 } | |
| 610 | |
|
29
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
611 // Initialize file ops |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
612 dmf_init_fops(handle); |
| 0 | 613 |
| 614 // Check if the data is preloaded | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
615 if (handle->flags & DMF_LOADED_RAW) |
| 0 | 616 { |
| 617 dmres_ref(handle); | |
| 618 return handle; | |
| 619 } | |
| 620 | |
|
29
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
621 // Try preloading |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
622 ret = dmf_preload(handle); |
| 0 | 623 |
| 624 if (ret == DMERR_OK) | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
625 { |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
626 dmres_ref(handle); |
| 0 | 627 return handle; |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
628 } |
| 0 | 629 |
| 630 return NULL; | |
| 631 } | |
| 632 | |
| 633 | |
| 634 DMResource * dmf_open_memio(const char *filename, Uint8 *buf, size_t len) | |
| 635 { | |
| 636 DMResource *handle; | |
| 637 | |
| 638 // Check master directory for resource | |
| 639 if ((handle = dmres_find(filename)) == NULL) | |
| 640 { | |
| 641 // Hmm.. does not exist? Fall back to a stdio file | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
642 handle = dmres_new(filename, DMF_LOADED_RAW, len); |
| 0 | 643 if (handle == NULL) |
| 644 return NULL; | |
| 645 | |
| 646 handle->fops = &dfMemIOFileOps; | |
| 647 handle->data = buf; | |
| 648 dmres_insert(handle); | |
| 649 } | |
| 650 | |
| 651 // Increase refcount | |
| 652 dmres_ref(handle); | |
| 653 | |
| 654 return handle; | |
| 655 } | |
| 656 | |
| 657 | |
| 658 #ifdef DMRES_STDIO | |
| 659 DMResource * dmf_create_stdio(const char *filename) | |
| 660 { | |
| 661 DMResource *handle = dmres_new(filename, 0, 0); | |
| 662 if (handle == NULL) | |
| 663 return NULL; | |
| 664 | |
| 665 handle->fops = &dfStdioFileOps; | |
| 666 | |
| 667 handle->fh = fopen(filename, "rb"); | |
| 668 handle->error = dmGetErrno(); | |
| 669 | |
| 670 if (handle->fh != NULL) | |
| 671 { | |
| 672 dmres_ref(handle); | |
| 673 return handle; | |
| 674 } | |
| 675 else | |
| 676 { | |
| 677 dmres_free(handle); | |
| 678 return NULL; | |
| 679 } | |
| 680 } | |
| 681 | |
| 682 | |
| 683 DMResource * dmf_create_stdio_stream(FILE *fh) | |
| 684 { | |
| 685 DMResource *handle = dmres_new("", 0, 0); | |
| 686 if (handle == NULL) | |
| 687 return NULL; | |
| 688 | |
| 689 handle->fops = &dfStdioFHOps; | |
| 690 handle->fh = fh; | |
| 691 dmres_ref(handle); | |
| 692 return handle; | |
| 693 } | |
| 694 #endif | |
| 695 | |
| 696 | |
| 697 void dmf_close(DMResource * f) | |
| 698 { | |
| 699 if (f == NULL) | |
| 700 return; | |
| 701 | |
| 702 if (f->fops->fclose != NULL) | |
| 703 f->fops->fclose(f); | |
| 704 | |
| 705 dmres_unref(f); | |
| 706 } | |
| 707 | |
| 708 | |
| 709 int dmferror(DMResource * f) | |
| 710 { | |
| 711 f->atime = time(NULL); | |
| 712 return f->fops->ferror(f); | |
| 713 } | |
| 714 | |
| 715 int dmfseek(DMResource * f, off_t offset, int whence) | |
| 716 { | |
| 717 f->atime = time(NULL); | |
| 718 return f->fops->fseek(f, offset, whence); | |
| 719 } | |
| 720 | |
| 721 off_t dmfsize(DMResource * f) | |
| 722 { | |
| 723 f->atime = time(NULL); | |
| 724 return f->fops->fsize(f); | |
| 725 } | |
| 726 | |
| 727 off_t dmftell(DMResource * f) | |
| 728 { | |
| 729 f->atime = time(NULL); | |
| 730 return f->fops->ftell(f); | |
| 731 } | |
| 732 | |
| 733 BOOL dmfeof(DMResource * f) | |
| 734 { | |
| 735 f->atime = time(NULL); | |
| 736 return f->fops->feof(f); | |
| 737 } | |
| 738 | |
| 739 int dmfgetc(DMResource * f) | |
| 740 { | |
| 741 f->atime = time(NULL); | |
| 742 return f->fops->fgetc(f); | |
| 743 } | |
| 744 | |
| 745 size_t dmfread(void *ptr, size_t size, size_t nmemb, DMResource * f) | |
| 746 { | |
| 747 f->atime = time(NULL); | |
| 748 return f->fops->fread(ptr, size, nmemb, f); | |
| 749 } | |
| 750 | |
| 751 | |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
752 int dmres_ref(DMResource *node) |
| 0 | 753 { |
| 754 DMRES_LOCK(); | |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
755 node->atime = time(NULL); |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
756 node->refcount++; |
| 0 | 757 DMRES_UNLOCK(); |
| 758 | |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
759 return node->refcount; |
| 0 | 760 } |
| 761 | |
| 762 | |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
763 int dmres_unref(DMResource *node) |
| 0 | 764 { |
| 765 DMRES_LOCK(); | |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
766 node->refcount--; |
| 0 | 767 DMRES_UNLOCK(); |
| 768 | |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
769 return node->refcount; |
| 0 | 770 } |
| 771 | |
| 772 | |
| 773 int dmres_load_resfile(const char *filename) | |
| 774 { | |
| 775 int ret; | |
| 776 char line[256]; | |
| 777 FILE *f = fopen(filename, "r"); | |
| 778 if (f == NULL) | |
| 779 return DMERR_FOPEN; | |
| 780 | |
| 781 DMRES_LOCK(); | |
| 782 | |
| 783 while (fgets(line, sizeof(line) - 1, f) != NULL) | |
| 784 { | |
| 785 int fnstart, fsep; | |
| 786 for (fnstart = 0; isspace(line[fnstart]); fnstart++); | |
| 787 for (fsep = fnstart; line[fsep] && line[fsep] != '|'; fsep++); | |
| 788 if (line[fsep] == '|') | |
| 789 { | |
| 790 int flags, i; | |
| 791 for (i = fsep - 1; i > 0 && isspace(line[i]); i--) | |
| 792 line[i] = 0; | |
| 793 | |
| 794 for (i = fsep; isspace(line[i]); i++); | |
| 795 | |
| 796 if (sscanf(&line[i], "%x", &flags) == 1 && | |
| 797 strlen(&line[fnstart]) > 0) | |
| 798 { | |
| 799 | |
| 800 } | |
| 801 } | |
| 802 } | |
| 803 | |
| 804 DMRES_UNLOCK(); | |
| 805 fclose(f); | |
| 806 return ret; | |
| 807 } | |
| 808 | |
| 809 | |
| 810 int dmres_write_resfile(const char *filename) | |
| 811 { | |
| 812 int ret; | |
| 813 DMResource *node; | |
| 814 FILE *f = fopen(filename, "w"); | |
| 815 if (f == NULL) | |
| 816 return DMERR_FOPEN; | |
| 817 | |
| 818 DMRES_LOCK(); | |
| 819 | |
| 820 for (node = dfResources; node != NULL; node = node->next) | |
| 821 { | |
| 822 if (fprintf(f, "%s|%08x\n", node->filename, node->flags) < 0) | |
| 823 { | |
| 824 ret = DMERR_FWRITE; | |
| 825 goto error; | |
| 826 } | |
| 827 } | |
| 828 | |
| 829 error: | |
| 830 DMRES_UNLOCK(); | |
| 831 fclose(f); | |
| 832 return ret; | |
| 833 } | |
| 834 | |
| 835 | |
| 836 /* Resources subsystem initialization and shutdown routines | |
| 837 */ | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
838 int dmres_init(const char *filename, const char *path, int flags, int (*classifier)(DMResource *)) |
| 0 | 839 { |
| 840 // Check if we are already initialized | |
| 841 if (dfResInitialized) | |
| 842 return DMERR_ALREADY_INIT; | |
| 843 | |
| 844 dfResFlags = flags; | |
| 845 dfResPath = dm_strdup((path != NULL) ? path : DMRES_DATA_PATH); | |
| 846 dfResourcesMutex = dmCreateMutex(); | |
| 847 | |
| 848 if (flags & DRF_USE_PACK) | |
| 849 { | |
| 850 #ifdef DMRES_PACKFS | |
| 851 int ret; | |
| 852 DMPackEntry *node; | |
| 853 | |
| 854 dfResPackFilename = dm_strdup((filename != NULL) ? filename : DMRES_DATA_PACK); | |
| 855 | |
| 856 // Initialize PACK, open as read-only | |
| 857 ret = dm_pack_open(dfResPackFilename, &dfResPackFile, TRUE); | |
| 858 if (ret != DMERR_OK) | |
| 859 { | |
| 860 dmError("Error opening PACK file '%s', #%i: %s\n", | |
| 861 dfResPackFilename, ret, dmErrorStr(ret)); | |
| 862 | |
| 863 return DMERR_INIT_FAIL; | |
| 864 } | |
| 865 | |
| 866 // Initialize resources from a PACK file | |
| 867 for (node = dfResPackFile->entries; node != NULL; node = node->next) | |
| 868 { | |
|
4
e0fc7863d024
Mask out bits from resFlags that should not be there after initialization.
Matti Hamalainen <ccr@tnsp.org>
parents:
0
diff
changeset
|
869 DMResource *res = dmres_new(node->filename, node->resFlags & DMF_MASK, node->size); |
| 0 | 870 if (res == NULL) |
| 871 { | |
| 872 dmError("Could not allocate memory for resource node '%s' [0x%08x], %d.\n", | |
| 873 node->filename, node->resFlags, node->size); | |
| 874 return DMERR_INIT_FAIL; | |
| 875 } | |
| 876 | |
| 877 dmres_insert(res); | |
| 878 } | |
| 879 | |
| 880 #else | |
| 881 // PACK not compiled in, FAIL! | |
| 882 return DMERR_INIT_FAIL; | |
| 883 #endif | |
| 884 } | |
| 885 else | |
| 886 { | |
| 887 // Initialize resources from a resource directory | |
| 888 char *resFilename = dm_strdup_printf("%s%s", dfResPath, DMRES_RES_FILE); | |
| 889 int ret = dmres_load_resfile(resFilename); | |
| 890 dmFree(resFilename); | |
| 891 | |
| 892 if (ret != DMERR_OK) | |
| 893 return DMERR_INIT_FAIL; | |
| 894 } | |
| 895 | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
896 // Okay, classify resources |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
897 if (dfResources != NULL && classifier != NULL) |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
898 { |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
899 DMResource *node; |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
900 for (node = dfResources; node != NULL; node = node->next) |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
901 { |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
902 int ret = classifier(node); |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
903 if (ret != DMERR_OK) |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
904 return DMERR_INIT_FAIL; |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
905 } |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
906 } |
| 0 | 907 |
| 908 // Initialization complete | |
| 909 dfResInitialized = TRUE; | |
| 910 return DMERR_OK; | |
| 911 } | |
| 912 | |
| 913 | |
| 914 void dmres_close(void) | |
| 915 { | |
| 916 DMResource *node; | |
| 917 DMRES_LOCK(); | |
| 918 | |
| 919 if (!dfResInitialized) | |
| 920 return; | |
| 921 | |
| 922 // Shutdown possible subsystems | |
| 923 #ifdef DMRES_PACKFS | |
| 924 if (dfResFlags & DRF_USE_PACK) | |
| 925 { | |
| 926 int res = dm_pack_close(dfResPackFile); | |
| 927 if (res != DMERR_OK) | |
| 928 { | |
| 929 dmError("Error closing PACK, #%i: %s\n", | |
| 930 res, dmErrorStr(res)); | |
| 931 } | |
| 932 | |
| 933 dmFree(dfResPackFilename); | |
| 934 } | |
| 935 #endif | |
| 936 | |
| 937 // Free resource entries | |
| 938 node = dfResources; | |
| 939 while (node != NULL) | |
| 940 { | |
| 941 DMResource *next = node->next; | |
| 942 dmres_free(node); | |
| 943 node = next; | |
| 944 } | |
| 945 | |
| 946 // Etc. | |
| 947 dmFree(dfResPath); | |
| 948 DMRES_UNLOCK(); | |
| 949 dmDestroyMutex(dfResourcesMutex); | |
| 950 dfResInitialized = FALSE; | |
| 951 } | |
| 952 | |
| 953 | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
954 int dmres_preload(BOOL start, int *loaded, int *total) |
| 0 | 955 { |
| 956 static DMResource *dfPreload = NULL; | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
957 int ret = DMERR_OK; |
| 0 | 958 |
| 959 DMRES_LOCK(); | |
| 960 | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
961 // Initialize preloading |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
962 if (dfPreload == NULL || start) |
| 0 | 963 { |
| 964 DMResource *node; | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
965 |
| 0 | 966 dfPreload = dfResources; |
| 967 *loaded = 0; | |
| 968 *total = 0; | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
969 |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
970 // Calculate total number of resources to be preloaded |
| 0 | 971 for (node = dfResources; node != NULL; node = node->next) |
| 972 { | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
973 if ((dfResFlags & (DRF_PRELOAD_ALL | DRF_PRELOAD_RES)) || |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
974 (node->flags & (DMF_PRELOAD_RAW | DMF_PRELOAD_RES))) |
| 0 | 975 (*total)++; |
| 976 } | |
| 977 } | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
978 else |
| 0 | 979 if (dfPreload != NULL) |
| 980 { | |
|
29
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
981 // Initialize fops and preload |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
982 dmf_init_fops(dfPreload); |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
983 if ((ret = dmf_preload(dfPreload)) != DMERR_OK) |
|
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
984 goto error; |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
985 |
|
29
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
986 (*loaded)++; |
| 0 | 987 dfPreload = dfPreload->next; |
| 988 } | |
| 989 | |
| 990 DMRES_UNLOCK(); | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
991 return (dfPreload == NULL) ? DMERR_OK : DMERR_PROGRESS; |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
992 |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
993 error: |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
994 DMRES_UNLOCK(); |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
995 return ret; |
| 0 | 996 } |
| 997 | |
| 998 | |
| 999 void dmres_prune(int agems, int flags) | |
| 1000 { | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
1001 DMResource *node; |
| 0 | 1002 int currtime = time(NULL); |
| 1003 DMRES_LOCK(); | |
| 1004 | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
1005 for (node = dfResources; node != NULL; node = node->next) |
| 0 | 1006 { |
| 1007 // Check if node has refcount of 0 and is | |
| 1008 // not marked as persistent resource | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
1009 if (node->refcount == 0 && |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
1010 (node->flags & DMF_PERSIST) == 0 && |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
1011 (node->flags & (DMF_LOADED_RES | DMF_LOADED_RAW))) |
| 0 | 1012 { |
| 1013 // Check if we match either one of atime or mtime | |
| 1014 if (((flags & DMPRUNE_ATIME) && | |
| 1015 currtime - node->atime >= agems) || | |
| 1016 ((flags & DMPRUNE_MTIME) && | |
| 1017 currtime - node->mtime >= agems)) | |
| 1018 { | |
|
27
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
1019 dmres_free_res_data(node); |
|
21c14afbf63d
Modularize the resource system a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
1020 dmres_free_raw_data(node); |
| 0 | 1021 } |
| 1022 } | |
| 1023 } | |
| 1024 | |
| 1025 DMRES_UNLOCK(); | |
| 1026 } | |
| 1027 | |
| 1028 | |
| 1029 /* Helper resource access routines | |
| 1030 */ | |
| 1031 int dmf_read_str(DMResource *f, Uint8 *s, size_t l) | |
| 1032 { | |
| 1033 return dmfread(s, sizeof(Uint8), l, f) == l; | |
| 1034 } | |
| 1035 | |
| 1036 | |
| 1037 #define DM_DEFINE_FUNC(xname, xtype, xmacro) \ | |
| 1038 BOOL dmf_read_ ## xname (DMResource *f, xtype *v) { \ | |
| 1039 xtype result; \ | |
| 1040 if (dmfread(&result, sizeof( xtype ), 1, f) != 1) \ | |
| 1041 return FALSE; \ | |
| 1042 *v = DM_ ## xmacro ## _TO_NATIVE (result); \ | |
| 1043 return TRUE; \ | |
| 1044 } | |
| 1045 | |
| 1046 DM_DEFINE_FUNC(le16, Uint16, LE16) | |
| 1047 DM_DEFINE_FUNC(le32, Uint32, LE32) | |
| 1048 | |
| 1049 DM_DEFINE_FUNC(be16, Uint16, BE16) | |
| 1050 DM_DEFINE_FUNC(be32, Uint32, BE32) | |
| 1051 | |
| 1052 #ifdef DM_HAVE_64BIT | |
| 1053 DM_DEFINE_FUNC(le64, Uint64, LE64) | |
| 1054 DM_DEFINE_FUNC(be64, Uint64, BE64) | |
| 1055 #endif |