Mercurial > hg > dmlib
annotate dmres.c @ 627:bf8986a6ede1
Cleanups.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Mon, 15 Apr 2013 03:32:59 +0300 |
| parents | e8fc083b7499 |
| children | 0533f94e843b |
| 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 | |
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10 #ifdef DM_USE_STDIO |
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11 # ifdef __WIN32 |
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12 # else |
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13 # include <sys/types.h> |
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14 # include <sys/stat.h> |
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15 # include <unistd.h> |
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16 # include <dirent.h> |
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17 # endif |
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18 #endif |
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19 |
| 0 | 20 |
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21 DMResource *dmres_new(DMResourceLib *lib, const char *filename, int flags, size_t size) |
| 0 | 22 { |
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23 DMResource *node = dmMalloc0(sizeof(DMResource)); |
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24 if (node == NULL) |
| 0 | 25 return NULL; |
| 26 | |
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27 node->lib = lib; |
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28 node->filename = dm_strdup(filename); |
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29 node->flags = flags; |
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30 node->dataSize = size; |
| 0 | 31 |
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32 return node; |
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33 } |
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34 |
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35 |
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36 void dmres_free_res_data(DMResource *node) |
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37 { |
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38 if (node->rdata != NULL && |
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39 node->rops != NULL && |
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40 node->rops->free != NULL) |
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41 { |
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42 node->rops->free(node); |
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43 } |
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44 |
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45 node->rdata = NULL; |
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46 node->flags &= !DMF_LOADED_RES; |
| 0 | 47 } |
| 48 | |
| 49 | |
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50 void dmres_free_raw_data(DMResource *node) |
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51 { |
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52 dmFree(node->data); |
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53 node->data = NULL; |
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54 node->flags &= !DMF_LOADED_RAW; |
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55 } |
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56 |
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57 |
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58 void dmres_purge_raw_data(DMResource *node) |
| 0 | 59 { |
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60 if ((node->flags & DMF_PRELOAD_RAW) == 0 && |
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61 (node->flags & DMF_LOADED_RAW) && |
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62 node->data != NULL) |
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63 dmres_free_raw_data(node); |
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64 } |
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65 |
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66 |
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67 void dmres_free(DMResource *node) |
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68 { |
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69 if (node != NULL) |
| 0 | 70 { |
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71 dmres_free_res_data(node); |
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72 dmres_free_raw_data(node); |
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73 dmFree(node->filename); |
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74 dmFree(node); |
| 0 | 75 } |
| 76 } | |
| 77 | |
| 78 | |
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79 void dmres_insert(DMResourceLib *lib, DMResource * node) |
| 0 | 80 { |
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81 if (lib == NULL || node == NULL) |
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82 return; |
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83 |
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84 node->lib = lib; |
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85 |
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86 if (lib->resources != NULL) |
| 0 | 87 { |
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88 node->prev = lib->resources->prev; |
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89 lib->resources->prev->next = node; |
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90 lib->resources->prev = node; |
| 0 | 91 } |
| 92 else | |
| 93 { | |
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94 lib->resources = node->prev = node; |
| 0 | 95 } |
| 96 | |
| 97 node->next = NULL; | |
| 98 } | |
| 99 | |
| 100 | |
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101 void dmres_delete(DMResourceLib *lib, DMResource * node) |
| 0 | 102 { |
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103 if (lib == NULL) |
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104 return; |
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105 |
| 0 | 106 if (node->prev) |
| 107 node->prev->next = node->next; | |
| 108 | |
| 109 if (node->next) | |
| 110 node->next->prev = node->prev; | |
| 111 else | |
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112 lib->resources->prev = node->prev; |
| 0 | 113 |
| 114 node->prev = node->next = NULL; | |
| 115 } | |
| 116 | |
| 117 | |
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118 DMResource * dmres_find(DMResourceLib *lib, const char *filename) |
| 0 | 119 { |
| 120 DMResource *node, *found = NULL; | |
| 121 | |
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122 if (lib == NULL) |
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123 return NULL; |
| 0 | 124 |
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125 dmMutexLock(lib->mutex); |
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126 |
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127 for (node = lib->resources; node != NULL; node = node->next) |
| 0 | 128 { |
| 129 if (strcmp(node->filename, filename) == 0) | |
| 130 { | |
| 131 found = node; | |
| 132 break; | |
| 133 } | |
| 134 } | |
| 135 | |
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136 dmMutexUnlock(lib->mutex); |
| 0 | 137 |
| 138 return found; | |
| 139 } | |
| 140 | |
| 141 | |
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142 #ifdef DM_USE_STDIO |
| 0 | 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 | |
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192 savePos = ftello(f->fh); |
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193 if (fseeko(f->fh, 0L, SEEK_END) != 0) |
| 0 | 194 { |
| 195 f->error = dmGetErrno(); | |
| 196 return -1; | |
| 197 } | |
| 198 | |
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199 fileSize = ftello(f->fh); |
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200 if (fseeko(f->fh, savePos, SEEK_SET) != 0) |
| 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 | |
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231 static int dm_stdio_fputc(int v, DMResource * f) |
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232 { |
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233 int ret = fputc(v, f->fh); |
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234 f->error = dmGetErrno(); |
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235 return ret; |
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236 } |
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237 |
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238 |
| 0 | 239 static size_t dm_stdio_fread(void *ptr, size_t size, size_t nmemb, DMResource * f) |
| 240 { | |
| 241 size_t ret = fread(ptr, size, nmemb, f->fh); | |
| 242 f->error = dmGetErrno(); | |
| 243 return ret; | |
| 244 } | |
| 245 | |
| 246 | |
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247 static size_t dm_stdio_fwrite(void *ptr, size_t size, size_t nmemb, DMResource * f) |
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248 { |
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249 size_t ret = fwrite(ptr, size, nmemb, f->fh); |
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250 f->error = dmGetErrno(); |
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251 return ret; |
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252 } |
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253 |
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254 |
| 0 | 255 static int dm_stdio_preload(DMResource *handle) |
| 256 { | |
| 257 int ret = dm_stdio_fopen(handle); | |
| 258 if (ret != DMERR_OK) | |
| 259 return ret; | |
| 260 | |
| 261 dm_stdio_fsize(handle); | |
| 262 | |
| 263 handle->data = dmMalloc(handle->dataSize); | |
| 264 if (handle->data == NULL) | |
| 265 return DMERR_MALLOC; | |
| 266 | |
| 267 if (dm_stdio_fread(handle->data, sizeof(Uint8), handle->dataSize, handle) != handle->dataSize) | |
| 268 return DMERR_FREAD; | |
| 269 | |
| 270 return DMERR_OK; | |
| 271 } | |
| 272 | |
| 273 | |
| 274 DMResourceOps dfStdioFileOps = | |
| 275 { | |
| 276 dm_stdio_ferror, | |
| 277 dm_stdio_fseek, | |
| 278 dm_stdio_fsize, | |
| 279 dm_stdio_ftell, | |
| 280 dm_stdio_feof, | |
| 281 dm_stdio_fgetc, | |
|
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282 dm_stdio_fputc, |
| 0 | 283 dm_stdio_fread, |
|
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284 dm_stdio_fwrite, |
| 0 | 285 |
| 286 dm_stdio_fopen, | |
| 287 dm_stdio_fclose, | |
| 288 dm_stdio_preload | |
| 289 }; | |
| 290 | |
| 291 DMResourceOps dfStdioFHOps = | |
| 292 { | |
| 293 dm_stdio_ferror, | |
| 294 dm_stdio_fseek, | |
| 295 dm_stdio_fsize, | |
| 296 dm_stdio_ftell, | |
| 297 dm_stdio_feof, | |
| 298 dm_stdio_fgetc, | |
|
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299 dm_stdio_fputc, |
| 0 | 300 dm_stdio_fread, |
|
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301 dm_stdio_fwrite, |
| 0 | 302 |
| 303 NULL, | |
| 304 NULL, | |
| 305 NULL | |
| 306 }; | |
| 307 #endif | |
| 308 | |
| 309 | |
| 310 // Some mingw/windows headers define these as macros, which is bad for us | |
| 311 #ifdef __WIN32 | |
| 312 #undef ferror | |
| 313 #undef feof | |
| 314 #endif | |
| 315 | |
| 316 | |
| 317 /* | |
| 318 * PACK file routines | |
| 319 */ | |
|
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320 #ifdef DM_USE_PACKFS |
| 0 | 321 static int dm_pack_preload(DMResource *handle) |
| 322 { | |
| 323 DMPackEntry *node; | |
| 324 int res = DMERR_OK, cres, cdataLeft; | |
| 325 z_stream cstream; | |
| 326 Uint8 * cbuffer = NULL; | |
| 327 | |
|
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328 if (handle->lib == NULL || handle->lib->packFile == NULL) |
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329 return DMERR_NULLPTR; |
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330 |
| 0 | 331 // Search PACK nodelist for file |
|
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332 if ((node = dm_pack_find(handle->lib->packFile->entries, handle->filename)) == NULL) |
| 0 | 333 { |
| 334 dmError("Entry '%s' not found in PACK file.\n", handle->filename); | |
| 335 res = DMERR_NOT_FOUND; | |
| 336 goto error; | |
| 337 } | |
| 338 | |
| 339 // Seek to entry | |
|
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340 if (fseek(handle->lib->packFile->file, node->offset, SEEK_SET) == -1) |
| 0 | 341 { |
| 342 dmError("Could not seek node position in PACK file.\n"); | |
| 343 res = DMERR_FSEEK; | |
| 344 goto error; | |
| 345 } | |
| 346 | |
| 347 // Allocate a structures and buffers | |
| 348 cbuffer = (Uint8 *) dmMalloc(DPACK_TMPSIZE); | |
| 349 if (cbuffer == NULL) | |
| 350 { | |
| 351 res = DMERR_MALLOC; | |
| 352 goto error; | |
| 353 } | |
| 354 | |
| 355 // Initialize fields | |
| 356 handle->dataOffset = 0; | |
| 357 handle->dataSize = node->size; | |
| 358 handle->data = (Uint8 *) dmMalloc(node->size); | |
| 359 if (handle->data == NULL) | |
| 360 { | |
| 361 res = DMERR_MALLOC; | |
| 362 goto error; | |
| 363 } | |
| 364 | |
| 365 // Initialize decompression | |
| 366 cstream.zalloc = (alloc_func) Z_NULL; | |
| 367 cstream.zfree = (free_func) Z_NULL; | |
| 368 cstream.opaque = (voidpf) Z_NULL; | |
| 369 cstream.next_out = handle->data; | |
| 370 cstream.avail_out = handle->dataSize; | |
| 371 cdataLeft = node->length; | |
| 372 cres = inflateInit(&(cstream)); | |
| 373 if (cres != Z_OK) | |
| 374 { | |
| 375 dmError("Could not initialize zlib stream inflation.\n"); | |
| 376 res = DMERR_INIT_FAIL; | |
| 377 goto error; | |
| 378 } | |
| 379 | |
| 380 // Uncompress the data | |
| 381 while (cdataLeft > 0 && | |
| 382 cstream.avail_out > 0 && cres == Z_OK) | |
| 383 { | |
| 384 cstream.avail_in = fread( | |
| 385 cbuffer, sizeof(Uint8), | |
| 386 (cdataLeft >= DPACK_TMPSIZE) ? DPACK_TMPSIZE : cdataLeft, | |
|
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387 handle->lib->packFile->file); |
| 0 | 388 |
| 389 cdataLeft -= cstream.avail_in; | |
| 390 cstream.next_in = cbuffer; | |
| 391 cres = inflate(&cstream, Z_FULL_FLUSH); | |
| 392 } | |
| 393 | |
| 394 // Cleanup | |
| 395 inflateEnd(&(cstream)); | |
| 396 | |
| 397 error: | |
| 398 dmFree(cbuffer); | |
| 399 return res; | |
| 400 } | |
| 401 | |
| 402 | |
|
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403 static void dm_pack_fclose(DMResource * f) |
| 0 | 404 { |
| 405 f->dataSize = 0; | |
| 406 f->dataOffset = 0; | |
| 407 dmFree(f->data); | |
| 408 f->data = NULL; | |
| 409 } | |
|
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410 #endif |
| 0 | 411 |
| 412 | |
| 413 static int dm_mem_ferror(DMResource * f) | |
| 414 { | |
| 415 return f->error; | |
| 416 } | |
| 417 | |
| 418 | |
| 419 static int dm_mem_fseek(DMResource * f, const off_t offset, const int whence) | |
| 420 { | |
| 421 off_t newPos; | |
| 422 | |
| 423 // Calculate the new position | |
| 424 switch (whence) | |
| 425 { | |
| 426 case SEEK_SET: | |
| 427 newPos = offset; | |
| 428 break; | |
| 429 | |
| 430 case SEEK_CUR: | |
| 431 newPos = f->dataOffset + offset; | |
| 432 break; | |
| 433 | |
| 434 case SEEK_END: | |
| 435 newPos = f->dataSize + offset; | |
| 436 break; | |
| 437 | |
| 438 default: | |
| 439 return -1; | |
| 440 } | |
| 441 | |
| 442 // Set the new position | |
| 443 f->dataOffset = newPos; | |
| 444 | |
| 445 // Check the new position | |
| 446 if (newPos < 0 && (size_t) newPos >= f->dataSize) | |
| 447 return -1; | |
| 448 | |
| 449 return 0; | |
| 450 } | |
| 451 | |
| 452 | |
| 453 static off_t dm_mem_fsize(DMResource * f) | |
| 454 { | |
| 455 return f->dataSize; | |
| 456 } | |
| 457 | |
| 458 | |
| 459 static off_t dm_mem_ftell(DMResource * f) | |
| 460 { | |
| 461 return f->dataOffset; | |
| 462 } | |
| 463 | |
| 464 | |
| 465 static BOOL dm_mem_feof(DMResource * f) | |
| 466 { | |
| 467 // Check for EOF | |
| 468 if ((size_t) f->dataOffset <= f->dataSize) | |
| 469 return FALSE; | |
| 470 else | |
| 471 return TRUE; | |
| 472 } | |
| 473 | |
| 474 | |
| 475 static int dm_mem_fgetc(DMResource * f) | |
| 476 { | |
| 477 // Check for EOF | |
| 478 if ((size_t) f->dataOffset < f->dataSize) | |
|
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479 return f->data[f->dataOffset++]; |
| 0 | 480 else |
| 481 return EOF; | |
| 482 } | |
| 483 | |
| 484 | |
| 485 static size_t dm_mem_fread(void *buf, size_t size, size_t nmemb, DMResource * f) | |
| 486 { | |
| 487 size_t length = (size * nmemb); | |
| 488 | |
| 489 // Check if we can read the whole chunk | |
| 490 if (((size_t) f->dataOffset + length) >= f->dataSize) | |
| 491 { | |
| 492 nmemb = (f->dataSize - f->dataOffset) / size; | |
| 493 length = size * nmemb; | |
| 494 } | |
| 495 | |
| 496 memcpy(buf, f->data + f->dataOffset, length); | |
| 497 f->dataOffset += length; | |
| 498 return nmemb; | |
| 499 } | |
| 500 | |
| 501 | |
|
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502 static int dm_mem_fputc(int ch, DMResource * f) |
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503 { |
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504 // Check for EOF |
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505 if ((size_t) f->dataOffset < f->dataSize) |
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506 { |
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507 f->data[f->dataOffset++] = ch; |
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508 return ch; |
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509 } |
|
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510 else |
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511 return EOF; |
|
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512 } |
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|
513 |
|
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|
514 |
|
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515 static size_t dm_mem_fwrite(void *buf, size_t size, size_t nmemb, DMResource * f) |
|
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516 { |
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517 size_t length = (size * nmemb); |
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518 |
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519 // Check if we can write the whole chunk |
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520 if (((size_t) f->dataOffset + length) >= f->dataSize) |
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521 { |
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522 nmemb = (f->dataSize - f->dataOffset) / size; |
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523 length = size * nmemb; |
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524 } |
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525 |
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526 if (length > 0) |
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527 { |
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528 memcpy(f->data + f->dataOffset, buf, length); |
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529 f->dataOffset += length; |
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530 } |
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|
531 return nmemb; |
|
bc1da1f4cb4b
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|
532 } |
|
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|
533 |
|
bc1da1f4cb4b
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534 |
|
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|
535 |
|
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536 #ifdef DM_USE_PACKFS |
| 0 | 537 DMResourceOps dfPackFileOps = |
| 538 { | |
| 539 dm_mem_ferror, | |
| 540 dm_mem_fseek, | |
| 541 dm_mem_fsize, | |
| 542 dm_mem_ftell, | |
| 543 dm_mem_feof, | |
| 544 dm_mem_fgetc, | |
|
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545 NULL, |
| 0 | 546 dm_mem_fread, |
|
59
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547 NULL, |
| 0 | 548 |
| 549 NULL, | |
|
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550 dm_pack_fclose, |
| 0 | 551 dm_pack_preload |
| 552 }; | |
|
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553 #endif |
| 0 | 554 |
| 555 | |
| 556 DMResourceOps dfMemIOFileOps = | |
| 557 { | |
| 558 dm_mem_ferror, | |
| 559 dm_mem_fseek, | |
| 560 dm_mem_fsize, | |
| 561 dm_mem_ftell, | |
| 562 dm_mem_feof, | |
| 563 dm_mem_fgetc, | |
|
439
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564 dm_mem_fputc, |
| 0 | 565 dm_mem_fread, |
|
439
bc1da1f4cb4b
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|
566 dm_mem_fwrite, |
| 0 | 567 |
| 568 NULL, | |
| 569 NULL, | |
| 570 NULL | |
| 571 }; | |
| 572 | |
| 573 | |
| 574 /* FS file handling functions. These functions call the actual | |
| 575 * functions depending on where the file is located. | |
| 576 */ | |
|
603
36b544eb6f4b
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|
577 static void dmf_reset(DMResource *handle) |
|
36b544eb6f4b
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|
578 { |
|
609
877dba1b8a1f
Fix some resource code checks.
Matti Hamalainen <ccr@tnsp.org>
parents:
604
diff
changeset
|
579 if (handle != NULL && handle->fops != NULL) |
|
603
36b544eb6f4b
Fixes in resource management.
Matti Hamalainen <ccr@tnsp.org>
parents:
602
diff
changeset
|
580 dmfseek(handle, 0, SEEK_SET); |
|
36b544eb6f4b
Fixes in resource management.
Matti Hamalainen <ccr@tnsp.org>
parents:
602
diff
changeset
|
581 } |
|
36b544eb6f4b
Fixes in resource management.
Matti Hamalainen <ccr@tnsp.org>
parents:
602
diff
changeset
|
582 |
|
36b544eb6f4b
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Matti Hamalainen <ccr@tnsp.org>
parents:
602
diff
changeset
|
583 |
|
26
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parents:
4
diff
changeset
|
584 static void dmf_init_fops(DMResource *handle) |
|
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parents:
4
diff
changeset
|
585 { |
|
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parents:
4
diff
changeset
|
586 // Check fops |
|
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parents:
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diff
changeset
|
587 if (handle->fops == NULL) |
|
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Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
588 { |
|
124
d5cfd29c87c4
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Matti Hamalainen <ccr@tnsp.org>
parents:
114
diff
changeset
|
589 #ifdef DM_USE_PACKFS |
|
359
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diff
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|
590 if (handle->lib->flags & DRF_USE_PACK) |
|
26
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parents:
4
diff
changeset
|
591 handle->fops = &dfPackFileOps; |
|
613
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
592 |
|
602
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
593 # ifdef DM_USE_STDIO |
|
26
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4
diff
changeset
|
594 else |
|
613
15cd5b8a29b2
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Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
595 if (handle->lib->flags & DRF_USE_STDIO) |
|
26
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parents:
4
diff
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|
596 handle->fops = &dfStdioFileOps; |
|
602
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553
diff
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|
597 # else |
|
26
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diff
changeset
|
598 handle->fops = &dfPackFileOps; |
|
602
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553
diff
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|
599 # endif |
|
26
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diff
changeset
|
600 #endif |
|
609
877dba1b8a1f
Fix some resource code checks.
Matti Hamalainen <ccr@tnsp.org>
parents:
604
diff
changeset
|
601 |
|
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Matti Hamalainen <ccr@tnsp.org>
parents:
604
diff
changeset
|
602 dmf_reset(handle); |
|
26
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|
603 } |
|
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|
604 } |
|
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diff
changeset
|
605 |
|
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Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
606 |
|
29
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|
607 int dmf_preload(DMResource *handle) |
|
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diff
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|
608 { |
|
e9f562f07cb0
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27
diff
changeset
|
609 int ret = DMERR_INIT_FAIL; |
|
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|
610 |
|
e9f562f07cb0
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27
diff
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|
611 // Check if we want to preload raw data? |
|
602
c1a5652e473d
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Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
612 if ((handle->flags & DMF_PRELOAD_RAW) || |
|
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Matti Hamalainen <ccr@tnsp.org>
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553
diff
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|
613 (handle->lib->flags & DRF_PRELOAD_ALL)) |
|
29
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parents:
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diff
changeset
|
614 { |
|
602
c1a5652e473d
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553
diff
changeset
|
615 if (handle->flags & DMF_LOADED_RAW) |
|
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diff
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|
616 ret = DMERR_OK; |
|
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553
diff
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|
617 else |
|
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553
diff
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|
618 if (handle->fops->preload != NULL) |
|
29
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|
619 { |
|
602
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diff
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|
620 ret = handle->fops->preload(handle); |
|
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diff
changeset
|
621 if (ret == DMERR_OK) |
| 604 | 622 { |
|
602
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diff
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|
623 handle->flags |= DMF_LOADED_RAW; |
| 604 | 624 } |
| 627 | 625 dmf_reset(handle); |
|
29
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|
626 } |
|
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diff
changeset
|
627 } |
|
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diff
changeset
|
628 else |
|
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diff
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|
629 { |
|
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|
630 if (handle->fops->fopen != NULL) |
|
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|
631 ret = handle->fops->fopen(handle); |
|
603
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parents:
602
diff
changeset
|
632 else |
|
625
e8fc083b7499
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Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
633 return DMERR_FOPEN; |
|
29
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|
634 } |
|
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diff
changeset
|
635 |
|
625
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Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
636 |
|
29
e9f562f07cb0
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parents:
27
diff
changeset
|
637 // Check if resource data is to be preloaded |
|
602
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parents:
553
diff
changeset
|
638 if ((handle->flags & DMF_PRELOAD_RES) || (handle->lib->flags & DRF_PRELOAD_RES)) |
|
29
e9f562f07cb0
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parents:
27
diff
changeset
|
639 { |
|
602
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
640 if (handle->flags & DMF_LOADED_RES) |
|
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
641 ret = DMERR_OK; |
|
c1a5652e473d
Sanitize resource preloading function a bit.
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parents:
553
diff
changeset
|
642 else |
|
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
643 if (handle->rops != NULL && |
|
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
644 handle->rops->load != NULL) |
|
29
e9f562f07cb0
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Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
645 { |
|
602
c1a5652e473d
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Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
646 ret = handle->rops->load(handle); |
|
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
647 if (ret == DMERR_OK) |
|
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
648 { |
|
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
649 // Okay, mark as loaded |
|
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
650 handle->flags |= DMF_LOADED_RES; |
|
29
e9f562f07cb0
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Matti Hamalainen <ccr@tnsp.org>
parents:
27
diff
changeset
|
651 |
|
602
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
652 // Check if we can purge the raw data now |
|
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
653 if ((handle->flags & DMF_PERSIST) == 0) |
|
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
654 dmres_purge_raw_data(handle); |
|
c1a5652e473d
Sanitize resource preloading function a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
553
diff
changeset
|
655 } |
| 627 | 656 |
| 657 dmf_reset(handle); | |
|
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
|
658 } |
|
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
|
659 } |
|
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
|
660 |
|
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
|
661 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
|
662 } |
|
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
|
663 |
|
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
|
664 |
|
359
59045853853d
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Matti Hamalainen <ccr@tnsp.org>
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237
diff
changeset
|
665 DMResource *dmf_open(DMResourceLib *lib, const char *filename) |
| 0 | 666 { |
| 667 int ret; | |
| 668 DMResource *handle; | |
| 669 | |
| 670 // Check master directory for resource | |
|
359
59045853853d
Make resource management re-entrant.
Matti Hamalainen <ccr@tnsp.org>
parents:
237
diff
changeset
|
671 if ((handle = dmres_find(lib, filename)) == NULL) |
| 0 | 672 { |
|
124
d5cfd29c87c4
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Matti Hamalainen <ccr@tnsp.org>
parents:
114
diff
changeset
|
673 #ifdef DM_USE_STDIO |
|
613
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
674 if (lib->flags & DRF_USE_STDIO) |
|
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
675 { |
|
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
676 // Hmm.. does not exist? Fall back to a stdio file |
|
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
677 handle = dmres_new(lib, filename, 0, 0); |
|
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
678 if (handle == NULL) |
|
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
679 return NULL; |
|
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
680 |
|
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
681 handle->fops = &dfStdioFileOps; |
|
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
682 dmres_insert(lib, handle); |
|
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
683 } |
|
15cd5b8a29b2
Add DRF_USE_STDIO flag for resources.
Matti Hamalainen <ccr@tnsp.org>
parents:
609
diff
changeset
|
684 else |
| 0 | 685 return NULL; |
| 686 #else | |
| 687 // Stdio not enabled, fail | |
| 688 return NULL; | |
| 689 #endif | |
| 690 } | |
| 691 | |
|
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
|
692 // Initialize file ops |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
693 dmf_init_fops(handle); |
| 0 | 694 |
| 695 // Check if the data is preloaded | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
696 if (handle->flags & DMF_LOADED_RAW) |
| 0 | 697 { |
| 698 dmres_ref(handle); | |
| 699 return handle; | |
| 700 } | |
| 701 | |
|
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
|
702 // 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
|
703 ret = dmf_preload(handle); |
| 0 | 704 |
| 705 if (ret == DMERR_OK) | |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
706 { |
|
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
707 dmres_ref(handle); |
| 0 | 708 return handle; |
|
26
2f463a59d732
Implement rudimentary resource system.
Matti Hamalainen <ccr@tnsp.org>
parents:
4
diff
changeset
|
709 } |
| 0 | 710 |
| 711 return NULL; | |
| 712 } | |
| 713 | |
| 714 | |
|
359
59045853853d
Make resource management re-entrant.
Matti Hamalainen <ccr@tnsp.org>
parents:
237
diff
changeset
|
715 DMResource * dmf_create_memio(DMResourceLib *lib, const char *filename, Uint8 *buf, size_t len) |
| 0 | 716 { |
| 717 DMResource *handle; | |
| 718 | |
| 719 // Check master directory for resource | |
|
359
59045853853d
Make resource management re-entrant.
Matti Hamalainen <ccr@tnsp.org>
parents:
237
diff
changeset
|
720 if ((handle = dmres_find(lib, filename)) == NULL) |
| 0 | 721 { |
| 722 // Hmm.. does not exist? Fall back to a stdio file | |
|
359
59045853853d
Make resource management re-entrant.
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parents:
237
diff
changeset
|
723 handle = dmres_new(lib, filename, DMF_LOADED_RAW, len); |
| 0 | 724 if (handle == NULL) |
| 725 return NULL; | |
| 726 | |
| 727 handle->fops = &dfMemIOFileOps; | |
| 728 handle->data = buf; | |
|
359
59045853853d
Make resource management re-entrant.
Matti Hamalainen <ccr@tnsp.org>
parents:
237
diff
changeset
|
729 dmres_insert(lib, handle); |
| 0 | 730 } |
| 731 | |
| 732 // Increase refcount | |
| 733 dmres_ref(handle); | |
| 734 | |
|
603
36b544eb6f4b
Fixes in resource management.
Matti Hamalainen <ccr@tnsp.org>
parents:
602
diff
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|
735 dmf_reset(handle); |
| 0 | 736 return handle; |
| 737 } | |
| 738 | |
| 739 | |
|
124
d5cfd29c87c4
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114
diff
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|
740 #ifdef DM_USE_STDIO |
|
74
23ac82365a65
Add file mode to dmf_create_stdio().
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|
741 DMResource * dmf_create_stdio(const char *filename, const char *mode) |
| 0 | 742 { |
|
359
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diff
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|
743 DMResource *handle = dmres_new(NULL, filename, 0, 0); |
| 0 | 744 if (handle == NULL) |
| 745 return NULL; | |
| 746 | |
| 747 handle->fops = &dfStdioFileOps; | |
| 748 | |
|
74
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|
749 handle->fh = fopen(filename, mode); |
| 0 | 750 handle->error = dmGetErrno(); |
| 751 | |
| 752 if (handle->fh != NULL) | |
| 753 { | |
| 754 dmres_ref(handle); | |
| 755 return handle; | |
| 756 } | |
| 757 else | |
| 758 { | |
| 759 dmres_free(handle); | |
| 760 return NULL; | |
| 761 } | |
| 762 } | |
| 763 | |
| 764 | |
| 765 DMResource * dmf_create_stdio_stream(FILE *fh) | |
| 766 { | |
|
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|
767 DMResource *handle = dmres_new(NULL, "", 0, 0); |
| 0 | 768 if (handle == NULL) |
| 769 return NULL; | |
| 770 | |
| 771 handle->fops = &dfStdioFHOps; | |
| 772 handle->fh = fh; | |
| 773 dmres_ref(handle); | |
| 774 return handle; | |
| 775 } | |
| 776 #endif | |
| 777 | |
| 778 | |
| 779 void dmf_close(DMResource * f) | |
| 780 { | |
| 781 if (f == NULL) | |
| 782 return; | |
| 783 | |
| 784 if (f->fops->fclose != NULL) | |
| 785 f->fops->fclose(f); | |
| 786 | |
| 787 dmres_unref(f); | |
| 788 } | |
| 789 | |
| 790 | |
| 791 int dmferror(DMResource * f) | |
| 792 { | |
| 793 f->atime = time(NULL); | |
| 794 return f->fops->ferror(f); | |
| 795 } | |
| 796 | |
| 797 int dmfseek(DMResource * f, off_t offset, int whence) | |
| 798 { | |
| 799 f->atime = time(NULL); | |
| 800 return f->fops->fseek(f, offset, whence); | |
| 801 } | |
| 802 | |
| 803 off_t dmfsize(DMResource * f) | |
| 804 { | |
| 805 f->atime = time(NULL); | |
| 806 return f->fops->fsize(f); | |
| 807 } | |
| 808 | |
| 809 off_t dmftell(DMResource * f) | |
| 810 { | |
| 811 f->atime = time(NULL); | |
| 812 return f->fops->ftell(f); | |
| 813 } | |
| 814 | |
| 815 BOOL dmfeof(DMResource * f) | |
| 816 { | |
| 817 f->atime = time(NULL); | |
| 818 return f->fops->feof(f); | |
| 819 } | |
| 820 | |
| 821 int dmfgetc(DMResource * f) | |
| 822 { | |
| 823 f->atime = time(NULL); | |
| 824 return f->fops->fgetc(f); | |
| 825 } | |
| 826 | |
|
74
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|
827 int dmfputc(int v, DMResource * f) |
|
72
be6160981428
Improve and finish write functions in resource subsystem.
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59
diff
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|
828 { |
|
be6160981428
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|
829 f->atime = time(NULL); |
|
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Improve and finish write functions in resource subsystem.
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59
diff
changeset
|
830 return f->fops->fputc(v, f); |
|
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diff
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|
831 } |
|
be6160981428
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diff
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|
832 |
| 0 | 833 size_t dmfread(void *ptr, size_t size, size_t nmemb, DMResource * f) |
| 834 { | |
| 835 f->atime = time(NULL); | |
| 836 return f->fops->fread(ptr, size, nmemb, f); | |
| 837 } | |
| 838 | |
|
72
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59
diff
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|
839 size_t dmfwrite(void *ptr, size_t size, size_t nmemb, DMResource * f) |
|
be6160981428
Improve and finish write functions in resource subsystem.
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|
840 { |
|
be6160981428
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diff
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|
841 f->atime = time(NULL); |
|
be6160981428
Improve and finish write functions in resource subsystem.
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diff
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|
842 return f->fops->fwrite(ptr, size, nmemb, f); |
|
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parents:
59
diff
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|
843 } |
|
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diff
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|
844 |
| 235 | 845 char *dmfgets(char *s, int size, DMResource * f) |
| 846 { | |
| 847 char *p = s, c; | |
| 848 int n = 0; | |
| 849 | |
| 850 while ((c = f->fops->fgetc(f)) != EOF) | |
| 851 { | |
|
237
6d9d43bb68eb
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236
diff
changeset
|
852 n++; |
| 235 | 853 if (c == '\n') |
| 854 break; | |
| 855 else | |
| 856 if (n < size - 1) | |
| 857 *p++ = c; | |
| 858 } | |
| 859 *p = 0; | |
| 860 | |
|
236
8189be40ed7c
Oops, dmfgets() had a nasty think-o and counted the remaining buffer space
Matti Hamalainen <ccr@tnsp.org>
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|
861 return (n > 0) ? s : NULL; |
| 235 | 862 } |
| 863 | |
| 864 | |
|
27
21c14afbf63d
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diff
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|
865 int dmres_ref(DMResource *node) |
| 0 | 866 { |
|
359
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|
867 if (node->lib != NULL) dmMutexLock(node->lib->mutex); |
|
27
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parents:
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diff
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|
868 node->atime = time(NULL); |
|
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Matti Hamalainen <ccr@tnsp.org>
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diff
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|
869 node->refcount++; |
|
359
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parents:
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|
870 if (node->lib != NULL) dmMutexUnlock(node->lib->mutex); |
| 0 | 871 |
|
27
21c14afbf63d
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Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
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|
872 return node->refcount; |
| 0 | 873 } |
| 874 | |
| 875 | |
|
27
21c14afbf63d
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Matti Hamalainen <ccr@tnsp.org>
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|
876 int dmres_unref(DMResource *node) |
| 0 | 877 { |
|
359
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diff
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|
878 if (node->lib != NULL) dmMutexLock(node->lib->mutex); |
|
27
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Matti Hamalainen <ccr@tnsp.org>
parents:
26
diff
changeset
|
879 node->refcount--; |
|
359
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diff
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|
880 if (node->lib != NULL) dmMutexUnlock(node->lib->mutex); |
| 0 | 881 |
|
27
21c14afbf63d
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parents:
26
diff
changeset
|
882 return node->refcount; |
| 0 | 883 } |
| 884 | |
| 885 | |
|
114
e9de22e5a6d5
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Matti Hamalainen <ccr@tnsp.org>
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diff
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|
886 #define NADDFLAG(flg, ch) \ |
|
e9de22e5a6d5
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diff
changeset
|
887 do { \ |
|
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107
diff
changeset
|
888 if ((flags & (flg)) && offs < size - 1) \ |
|
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Matti Hamalainen <ccr@tnsp.org>
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|
889 str[offs++] = ch; \ |
|
e9de22e5a6d5
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Matti Hamalainen <ccr@tnsp.org>
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diff
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|
890 } while (0) |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
891 |
|
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Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
892 void dmres_flags_to_symbolic(char *str, size_t size, int flags) |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
893 { |
|
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Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
894 size_t offs = 0; |
|
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Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
895 NADDFLAG(DMF_PRELOAD_RAW, 'r'); |
|
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Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
896 NADDFLAG(DMF_PRELOAD_RES, 'e'); |
|
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Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
897 NADDFLAG(DMF_PERSIST, 'p'); |
|
e9de22e5a6d5
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Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
898 NADDFLAG(DMF_STREAM, 's'); |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
899 if (offs < size) |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
900 str[offs] = 0; |
|
e9de22e5a6d5
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Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
901 } |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
902 |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
903 #undef NADDFLAG |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
904 |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
905 |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
906 int dmres_symbolic_to_flags(const char *str) |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
907 { |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
908 int offs, flags; |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
909 |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
910 for (flags = offs = 0; str[offs]; offs++) |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
911 switch (tolower(str[offs])) |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
912 { |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
parents:
107
diff
changeset
|
913 case 'r': flags |= DMF_PRELOAD_RAW; break; |
|
e9de22e5a6d5
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Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
914 case 'e': flags |= DMF_PRELOAD_RES; break; |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
915 case 'p': flags |= DMF_PERSIST; break; |
|
e9de22e5a6d5
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Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
916 case 's': flags |= DMF_STREAM; break; |
|
e9de22e5a6d5
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parents:
107
diff
changeset
|
917 } |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
918 return flags; |
|
e9de22e5a6d5
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Matti Hamalainen <ccr@tnsp.org>
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107
diff
changeset
|
919 } |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
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107
diff
changeset
|
920 |
|
e9de22e5a6d5
Add functions for converting resource flags to symbolic string form and back.
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diff
changeset
|
921 |
|
625
e8fc083b7499
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parents:
613
diff
changeset
|
922 #ifdef DM_USE_STDIO |
|
e8fc083b7499
More work on resource management.
Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
923 static int dmres_load_directory(DMResourceLib *lib, const char *path) |
| 0 | 924 { |
|
625
e8fc083b7499
More work on resource management.
Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
925 int res = DMERR_OK; |
|
e8fc083b7499
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Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
926 BOOL done = FALSE; |
|
e8fc083b7499
More work on resource management.
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
927 |
|
e8fc083b7499
More work on resource management.
Matti Hamalainen <ccr@tnsp.org>
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613
diff
changeset
|
928 #ifdef __WIN32 |
|
e8fc083b7499
More work on resource management.
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613
diff
changeset
|
929 #else |
|
e8fc083b7499
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parents:
613
diff
changeset
|
930 DIR *hdir = opendir(path); |
|
e8fc083b7499
More work on resource management.
Matti Hamalainen <ccr@tnsp.org>
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613
diff
changeset
|
931 if (hdir == NULL) |
|
e8fc083b7499
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Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
932 return dmGetErrno(); |
|
e8fc083b7499
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parents:
613
diff
changeset
|
933 #endif |
| 0 | 934 |
|
359
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237
diff
changeset
|
935 dmMutexLock(lib->mutex); |
| 0 | 936 |
|
625
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diff
changeset
|
937 do |
| 0 | 938 { |
|
625
e8fc083b7499
More work on resource management.
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613
diff
changeset
|
939 DMResource *node = NULL; |
|
e8fc083b7499
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parents:
613
diff
changeset
|
940 #ifdef __WIN32 |
|
e8fc083b7499
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613
diff
changeset
|
941 #else |
|
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diff
changeset
|
942 struct dirent *dh = readdir(hdir); |
|
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Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
943 if (dh == NULL) |
|
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Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
944 done = TRUE; |
|
e8fc083b7499
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Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
945 else |
| 0 | 946 { |
|
625
e8fc083b7499
More work on resource management.
Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
947 struct stat sbuf; |
|
e8fc083b7499
More work on resource management.
Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
948 char *fname = dm_strdup_printf("%s/%s", path, dh->d_name); |
|
e8fc083b7499
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Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
949 if (stat(fname, &sbuf) == -1) |
|
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Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
950 { |
|
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Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
951 res = dmGetErrno(); |
|
e8fc083b7499
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Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
952 dmError("Could not stat() %s, #%d: %s\n", |
|
e8fc083b7499
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Matti Hamalainen <ccr@tnsp.org>
parents:
613
diff
changeset
|
953 fname, res, dmErrorStr(res)); |
|
e8fc083b7499
More work on resource management.
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
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|
954 dmFree(fname); |
|
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diff
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|
955 goto out; |
|
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diff
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|
956 } |
| 0 | 957 |
|
625
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|
958 if (S_ISREG(sbuf.st_mode)) |
|
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|
959 node = dmres_new(lib, dh->d_name, 0, sbuf.st_size); |
|
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diff
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|
960 } |
|
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parents:
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diff
changeset
|
961 #endif |
|
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diff
changeset
|
962 if (node != NULL) |
|
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diff
changeset
|
963 { |
|
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diff
changeset
|
964 node->fops = &dfStdioFileOps; |
|
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diff
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|
965 dmres_insert(lib, node); |
|
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diff
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|
966 } |
|
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diff
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|
967 } while (!done); |
| 0 | 968 |
|
625
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diff
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|
969 out: |
|
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diff
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|
970 dmMutexUnlock(lib->mutex); |
| 0 | 971 |
|
625
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diff
changeset
|
972 #ifdef __WIN32 |
|
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diff
changeset
|
973 #else |
|
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Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
974 closedir(hdir); |
|
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diff
changeset
|
975 #endif |
|
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diff
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|
976 |
|
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diff
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|
977 return res; |
| 0 | 978 } |
|
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diff
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|
979 #endif |
| 0 | 980 |
| 981 | |
| 982 /* Resources subsystem initialization and shutdown routines | |
| 983 */ | |
|
359
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|
984 int dmres_init(DMResourceLib **plib, const char *filename, const char *path, const int flags, int (*classifier)(DMResource *)) |
| 0 | 985 { |
|
359
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|
986 DMResourceLib *lib; |
|
625
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diff
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|
987 BOOL initialized = FALSE; |
|
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diff
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|
988 |
|
359
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diff
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|
989 // Allocate the resource library structure |
|
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diff
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|
990 if ((*plib = lib = dmMalloc0(sizeof(DMResourceLib))) == NULL) |
|
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|
991 return DMERR_MALLOC; |
| 0 | 992 |
|
359
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Make resource management re-entrant.
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|
993 // Basic data |
|
59045853853d
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|
994 lib->mutex = dmCreateMutex(); |
|
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Make resource management re-entrant.
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|
995 lib->flags = flags; |
|
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diff
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|
996 lib->resPath = dm_strdup((path != NULL) ? path : DMRES_DATA_PATH); |
| 0 | 997 |
| 107 | 998 |
|
625
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|
999 #ifdef DM_USE_PACKFS |
|
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|
1000 if (!initialized && (flags & DRF_USE_PACK)) |
| 0 | 1001 { |
| 1002 int ret; | |
| 1003 DMPackEntry *node; | |
| 1004 | |
|
359
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|
1005 lib->packFilename = dm_strdup((filename != NULL) ? filename : DMRES_DATA_PACK); |
| 0 | 1006 |
| 1007 // Initialize PACK, open as read-only | |
|
359
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Make resource management re-entrant.
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|
1008 ret = dm_pack_open(lib->packFilename, &lib->packFile, TRUE); |
| 0 | 1009 if (ret != DMERR_OK) |
| 1010 { | |
|
625
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|
1011 if ((flags & DRF_USE_STDIO) == 0) |
|
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|
1012 { |
|
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|
1013 dmError("Error opening PACK file '%s', #%i: %s\n", |
|
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|
1014 lib->packFilename, ret, dmErrorStr(ret)); |
| 0 | 1015 |
| 1016 return DMERR_INIT_FAIL; | |
| 1017 } | |
| 1018 } | |
|
625
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|
1019 else |
|
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|
1020 { |
|
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diff
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|
1021 // Initialize resources from a PACK file |
|
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|
1022 for (node = lib->packFile->entries; node != NULL; node = node->next) |
|
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|
1023 { |
|
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|
1024 DMResource *res = dmres_new(lib, node->filename, node->resFlags & DMF_MASK, node->size); |
|
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|
1025 if (res == NULL) |
|
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|
1026 { |
|
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|
1027 dmError("Could not allocate memory for resource node '%s' [0x%08x], %d.\n", |
|
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|
1028 node->filename, node->resFlags, node->size); |
|
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|
1029 return DMERR_INIT_FAIL; |
|
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|
1030 } |
|
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diff
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|
1031 |
|
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diff
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|
1032 dmres_insert(lib, res); |
|
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|
1033 } |
|
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|
1034 |
|
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diff
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|
1035 initialized = TRUE; |
|
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|
1036 } |
|
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|
1037 } |
| 0 | 1038 #endif |
|
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diff
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|
1039 |
|
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diff
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|
1040 #ifdef DM_USE_STDIO |
|
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diff
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|
1041 if (!initialized && (flags & DRF_USE_STDIO)) |
| 0 | 1042 { |
| 1043 // Initialize resources from a resource directory | |
|
625
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|
1044 int ret = dmres_load_directory(lib, lib->resPath); |
| 0 | 1045 if (ret != DMERR_OK) |
|
625
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diff
changeset
|
1046 return ret; |
|
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diff
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|
1047 initialized = TRUE; |
| 0 | 1048 } |
|
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parents:
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diff
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|
1049 #endif |
|
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diff
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|
1050 |
|
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diff
changeset
|
1051 if (!initialized) |
|
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diff
changeset
|
1052 return DMERR_INIT_FAIL; |
| 0 | 1053 |
|
26
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diff
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|
1054 // Okay, classify resources |
|
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|
1055 if (lib->resources != NULL && classifier != NULL) |
|
26
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diff
changeset
|
1056 { |
|
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diff
changeset
|
1057 DMResource *node; |
|
359
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|
1058 for (node = lib->resources; node != NULL; node = node->next) |
|
26
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diff
changeset
|
1059 { |
|
2f463a59d732
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parents:
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diff
changeset
|
1060 int ret = classifier(node); |
|
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diff
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|
1061 if (ret != DMERR_OK) |
| 107 | 1062 return ret; |
|
26
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diff
changeset
|
1063 } |
|
2f463a59d732
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diff
changeset
|
1064 } |
| 0 | 1065 |
| 1066 // Initialization complete | |
| 1067 return DMERR_OK; | |
| 1068 } | |
| 1069 | |
| 1070 | |
|
359
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|
1071 int dmres_close(DMResourceLib *lib) |
| 0 | 1072 { |
| 1073 DMResource *node; | |
|
359
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|
1074 |
|
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1075 if (lib == NULL) |
|
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|
1076 return DMERR_NULLPTR; |
|
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|
1077 |
|
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|
1078 dmMutexLock(lib->mutex); |
| 0 | 1079 |
| 1080 // Shutdown possible subsystems | |
|
124
d5cfd29c87c4
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|
1081 #ifdef DM_USE_PACKFS |
|
359
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|
1082 if (lib->flags & DRF_USE_PACK) |
| 0 | 1083 { |
|
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|
1084 int res = dm_pack_close(lib->packFile); |
| 0 | 1085 if (res != DMERR_OK) |
| 1086 { | |
| 1087 dmError("Error closing PACK, #%i: %s\n", | |
| 1088 res, dmErrorStr(res)); | |
| 1089 } | |
| 1090 | |
|
359
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|
1091 dmFree(lib->packFilename); |
| 0 | 1092 } |
| 1093 #endif | |
| 1094 | |
| 1095 // Free resource entries | |
|
359
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|
1096 node = lib->resources; |
| 0 | 1097 while (node != NULL) |
| 1098 { | |
| 1099 DMResource *next = node->next; | |
| 1100 dmres_free(node); | |
| 1101 node = next; | |
| 1102 } | |
| 1103 | |
| 1104 // Etc. | |
|
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|
1105 dmFree(lib->resPath); |
|
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|
1106 dmMutexUnlock(lib->mutex); |
|
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|
1107 dmDestroyMutex(lib->mutex); |
|
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|
1108 return DMERR_OK; |
| 0 | 1109 } |
| 1110 | |
| 1111 | |
|
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|
1112 int dmres_preload(DMResourceLib *lib, BOOL start, int *loaded, int *total) |
| 0 | 1113 { |
|
26
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diff
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|
1114 int ret = DMERR_OK; |
| 0 | 1115 |
|
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|
1116 dmMutexLock(lib->mutex); |
| 0 | 1117 |
|
26
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|
1118 // Initialize preloading |
|
359
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|
1119 if (lib->preload == NULL || start) |
| 0 | 1120 { |
| 1121 DMResource *node; | |
|
26
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|
1122 |
|
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|
1123 lib->preload = lib->resources; |
| 0 | 1124 *loaded = 0; |
| 1125 *total = 0; | |
|
26
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diff
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|
1126 |
|
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diff
changeset
|
1127 // Calculate total number of resources to be preloaded |
|
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|
1128 for (node = lib->resources; node != NULL; node = node->next) |
| 0 | 1129 { |
|
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|
1130 if ((lib->flags & (DRF_PRELOAD_ALL | DRF_PRELOAD_RES)) || |
|
26
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changeset
|
1131 (node->flags & (DMF_PRELOAD_RAW | DMF_PRELOAD_RES))) |
| 0 | 1132 (*total)++; |
| 1133 } | |
| 1134 } | |
|
26
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|
1135 else |
|
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|
1136 if (lib->preload != NULL) |
| 0 | 1137 { |
|
29
e9f562f07cb0
Modularize some more and fix a nasty bug when raw data is not preloaded but
Matti Hamalainen <ccr@tnsp.org>
parents:
27
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1138 // Initialize fops and preload |
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1139 dmf_init_fops(lib->preload); |
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1140 if ((ret = dmf_preload(lib->preload)) != DMERR_OK) |
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1141 goto error; |
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1142 |
|
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1143 (*loaded)++; |
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1144 lib->preload = lib->preload->next; |
| 0 | 1145 } |
| 1146 | |
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1147 dmMutexUnlock(lib->mutex); |
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1148 return (lib->preload == NULL) ? DMERR_OK : DMERR_PROGRESS; |
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1149 |
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1150 error: |
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1151 dmMutexUnlock(lib->mutex); |
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1152 return ret; |
| 0 | 1153 } |
| 1154 | |
| 1155 | |
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1156 void dmres_prune(DMResourceLib *lib, int agems, int flags) |
| 0 | 1157 { |
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1158 DMResource *node; |
| 0 | 1159 int currtime = time(NULL); |
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1160 dmMutexLock(lib->mutex); |
| 0 | 1161 |
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1162 for (node = lib->resources; node != NULL; node = node->next) |
| 0 | 1163 { |
| 1164 // Check if node has refcount of 0 and is | |
| 1165 // not marked as persistent resource | |
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1166 if (node->refcount == 0 && |
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1167 (node->flags & DMF_PERSIST) == 0 && |
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1168 (node->flags & (DMF_LOADED_RES | DMF_LOADED_RAW))) |
| 0 | 1169 { |
| 1170 // Check if we match either one of atime or mtime | |
| 1171 if (((flags & DMPRUNE_ATIME) && | |
| 1172 currtime - node->atime >= agems) || | |
| 1173 ((flags & DMPRUNE_MTIME) && | |
| 1174 currtime - node->mtime >= agems)) | |
| 1175 { | |
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1176 dmres_free_res_data(node); |
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1177 dmres_free_raw_data(node); |
| 0 | 1178 } |
| 1179 } | |
| 1180 } | |
| 1181 | |
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1182 dmMutexUnlock(lib->mutex); |
| 0 | 1183 } |
| 1184 | |
| 1185 | |
| 1186 /* Helper resource access routines | |
| 1187 */ | |
|
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1188 int dmf_read_str(DMResource *f, void *s, size_t l) |
| 0 | 1189 { |
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1190 return dmfread(s, 1, l, f) == l; |
| 0 | 1191 } |
| 1192 | |
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1193 BOOL dmf_read_byte(DMResource *f, Uint8 *val) |
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1194 { |
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1195 int tmp = dmfgetc(f); |
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1196 *val = tmp; |
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1197 return tmp != EOF; |
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1198 } |
| 0 | 1199 |
| 1200 #define DM_DEFINE_FUNC(xname, xtype, xmacro) \ | |
| 1201 BOOL dmf_read_ ## xname (DMResource *f, xtype *v) { \ | |
| 1202 xtype result; \ | |
| 1203 if (dmfread(&result, sizeof( xtype ), 1, f) != 1) \ | |
| 1204 return FALSE; \ | |
| 1205 *v = DM_ ## xmacro ## _TO_NATIVE (result); \ | |
| 1206 return TRUE; \ | |
| 1207 } | |
| 1208 | |
| 1209 DM_DEFINE_FUNC(le16, Uint16, LE16) | |
| 1210 DM_DEFINE_FUNC(le32, Uint32, LE32) | |
| 1211 | |
| 1212 DM_DEFINE_FUNC(be16, Uint16, BE16) | |
| 1213 DM_DEFINE_FUNC(be32, Uint32, BE32) | |
| 1214 | |
| 1215 #ifdef DM_HAVE_64BIT | |
| 1216 DM_DEFINE_FUNC(le64, Uint64, LE64) | |
| 1217 DM_DEFINE_FUNC(be64, Uint64, BE64) | |
| 1218 #endif |