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| 21 | |
| 22 | |
| 23 | #include "xcursorint.h" |
| 24 | #include <stdlib.h> |
| 25 | #include <string.h> |
| 26 | |
| 27 | XcursorImage * |
| 28 | XcursorImageCreate (int width, int height) |
| 29 | { |
| 30 | XcursorImage *image; |
| 31 | |
| 32 | image = malloc (sizeof (XcursorImage) + |
| 33 | width * height * sizeof (XcursorPixel)); |
| 34 | if (!image) |
| 35 | return NULL((void*)0); |
| 36 | image->version = XCURSOR_IMAGE_VERSION1; |
| 37 | image->pixels = (XcursorPixel *) (image + 1); |
| 38 | image->size = width > height ? width : height; |
| 39 | image->width = width; |
| 40 | image->height = height; |
| 41 | image->delay = 0; |
| 42 | return image; |
| 43 | } |
| 44 | |
| 45 | void |
| 46 | XcursorImageDestroy (XcursorImage *image) |
| 47 | { |
| 48 | free (image); |
| 49 | } |
| 50 | |
| 51 | XcursorImages * |
| 52 | XcursorImagesCreate (int size) |
| 53 | { |
| 54 | XcursorImages *images; |
| 55 | |
| 56 | images = malloc (sizeof (XcursorImages) + |
| 57 | size * sizeof (XcursorImage *)); |
| 58 | if (!images) |
| 59 | return NULL((void*)0); |
| 60 | images->nimage = 0; |
| 61 | images->images = (XcursorImage **) (images + 1); |
| 62 | images->name = NULL((void*)0); |
| 63 | return images; |
| 64 | } |
| 65 | |
| 66 | void |
| 67 | XcursorImagesDestroy (XcursorImages *images) |
| 68 | { |
| 69 | int n; |
| 70 | |
| 71 | if (!images) |
| 72 | return; |
| 73 | |
| 74 | for (n = 0; n < images->nimage; n++) |
| 75 | XcursorImageDestroy (images->images[n]); |
| 76 | if (images->name) |
| 77 | free (images->name); |
| 78 | free (images); |
| 79 | } |
| 80 | |
| 81 | void |
| 82 | XcursorImagesSetName (XcursorImages *images, const char *name) |
| 83 | { |
| 84 | char *new; |
| 85 | |
| 86 | if (!images || !name) |
| 87 | return; |
| 88 | |
| 89 | new = strdup (name); |
| 90 | |
| 91 | if (!new) |
| 92 | return; |
| 93 | |
| 94 | if (images->name) |
| 95 | free (images->name); |
| 96 | images->name = new; |
| 97 | } |
| 98 | |
| 99 | XcursorComment * |
| 100 | XcursorCommentCreate (XcursorUInt comment_type, int length) |
| 101 | { |
| 102 | XcursorComment *comment; |
| 103 | |
| 104 | if (length > XCURSOR_COMMENT_MAX_LEN0x100000) |
| 105 | return NULL((void*)0); |
| 106 | |
| 107 | comment = malloc (sizeof (XcursorComment) + length + 1); |
| 108 | if (!comment) |
| 109 | return NULL((void*)0); |
| 110 | comment->version = XCURSOR_COMMENT_VERSION1; |
| 111 | comment->comment_type = comment_type; |
| 112 | comment->comment = (char *) (comment + 1); |
| 113 | comment->comment[0] = '\0'; |
| 114 | return comment; |
| 115 | } |
| 116 | |
| 117 | void |
| 118 | XcursorCommentDestroy (XcursorComment *comment) |
| 119 | { |
| 120 | free (comment); |
| 121 | } |
| 122 | |
| 123 | XcursorComments * |
| 124 | XcursorCommentsCreate (int size) |
| 125 | { |
| 126 | XcursorComments *comments; |
| 127 | |
| 128 | comments = malloc (sizeof (XcursorComments) + |
| 129 | size * sizeof (XcursorComment *)); |
| 130 | if (!comments) |
| 131 | return NULL((void*)0); |
| 132 | comments->ncomment = 0; |
| 133 | comments->comments = (XcursorComment **) (comments + 1); |
| 134 | return comments; |
| 135 | } |
| 136 | |
| 137 | void |
| 138 | XcursorCommentsDestroy (XcursorComments *comments) |
| 139 | { |
| 140 | int n; |
| 141 | |
| 142 | if (!comments) |
| 143 | return; |
| 144 | |
| 145 | for (n = 0; n < comments->ncomment; n++) |
| 146 | XcursorCommentDestroy (comments->comments[n]); |
| 147 | free (comments); |
| 148 | } |
| 149 | |
| 150 | static XcursorBool |
| 151 | _XcursorReadUInt (XcursorFile *file, XcursorUInt *u) |
| 152 | { |
| 153 | unsigned char bytes[4]; |
| 154 | |
| 155 | if (!file || !u) |
| 156 | return XcursorFalse0; |
| 157 | |
| 158 | if ((*file->read) (file, bytes, 4) != 4) |
| 159 | return XcursorFalse0; |
| 160 | *u = ((bytes[0] << 0) | |
| 161 | (bytes[1] << 8) | |
| 162 | (bytes[2] << 16) | |
| 163 | (bytes[3] << 24)); |
| 164 | return XcursorTrue1; |
| 165 | } |
| 166 | |
| 167 | static XcursorBool |
| 168 | _XcursorReadBytes (XcursorFile *file, char *bytes, int length) |
| 169 | { |
| 170 | if (!file || !bytes || (*file->read) (file, (unsigned char *) bytes, length) != length) |
| 171 | return XcursorFalse0; |
| 172 | return XcursorTrue1; |
| 173 | } |
| 174 | |
| 175 | static XcursorBool |
| 176 | _XcursorWriteUInt (XcursorFile *file, XcursorUInt u) |
| 177 | { |
| 178 | unsigned char bytes[4]; |
| 179 | |
| 180 | if (!file) |
| |
| |
| |
| |
| 181 | return XcursorFalse0; |
| 182 | |
| 183 | bytes[0] = u; |
| 184 | bytes[1] = u >> 8; |
| 185 | bytes[2] = u >> 16; |
| 186 | bytes[3] = u >> 24; |
| 187 | if ((*file->write) (file, bytes, 4) != 4) |
| 27 | | Calling '_XcursorStdioFileWrite' | |
|
| 28 | | Returning from '_XcursorStdioFileWrite' | |
|
| |
| 34 | | Calling '_XcursorStdioFileWrite' | |
|
| 35 | | Returning from '_XcursorStdioFileWrite' | |
|
| |
| 41 | | Calling '_XcursorStdioFileWrite' | |
|
| 42 | | Returning from '_XcursorStdioFileWrite' | |
|
| |
| 48 | | Calling '_XcursorStdioFileWrite' | |
|
| 49 | | Returning from '_XcursorStdioFileWrite' | |
|
| |
| 188 | return XcursorFalse0; |
| 189 | return XcursorTrue1; |
| 190 | } |
| 191 | |
| 192 | static XcursorBool |
| 193 | _XcursorWriteBytes (XcursorFile *file, char *bytes, int length) |
| 194 | { |
| 195 | if (!file || !bytes || (*file->write) (file, (unsigned char *) bytes, length) != length) |
| 196 | return XcursorFalse0; |
| 197 | return XcursorTrue1; |
| 198 | } |
| 199 | |
| 200 | static void |
| 201 | _XcursorFileHeaderDestroy (XcursorFileHeader *fileHeader) |
| 202 | { |
| 203 | free (fileHeader); |
| 204 | } |
| 205 | |
| 206 | static XcursorFileHeader * |
| 207 | _XcursorFileHeaderCreate (XcursorUInt ntoc) |
| 208 | { |
| 209 | XcursorFileHeader *fileHeader; |
| 210 | |
| 211 | if (ntoc > 0x10000) |
| 12 | | Assuming 'ntoc' is <= 65536 | |
|
| |
| 212 | return NULL((void*)0); |
| 213 | fileHeader = malloc (sizeof (XcursorFileHeader) + |
| 14 | | Uninitialized value stored to field 'type' | |
|
| 214 | ntoc * sizeof (XcursorFileToc)); |
| 215 | if (!fileHeader) |
| 15 | | Assuming 'fileHeader' is non-null | |
|
| |
| 216 | return NULL((void*)0); |
| 217 | fileHeader->magic = XCURSOR_MAGIC0x72756358; |
| 218 | fileHeader->header = XCURSOR_FILE_HEADER_LEN(4 * 4); |
| 219 | fileHeader->version = XCURSOR_FILE_VERSION((1 << 16) | (0)); |
| 220 | fileHeader->ntoc = ntoc; |
| 221 | fileHeader->tocs = (XcursorFileToc *) (fileHeader + 1); |
| 222 | return fileHeader; |
| 223 | } |
| 224 | |
| 225 | static XcursorFileHeader * |
| 226 | _XcursorReadFileHeader (XcursorFile *file) |
| 227 | { |
| 228 | XcursorFileHeader head, *fileHeader; |
| 229 | XcursorUInt skip; |
| 230 | int n; |
| 231 | |
| 232 | if (!file) |
| 233 | return NULL((void*)0); |
| 234 | |
| 235 | if (!_XcursorReadUInt (file, &head.magic)) |
| 236 | return NULL((void*)0); |
| 237 | if (head.magic != XCURSOR_MAGIC0x72756358) |
| 238 | return NULL((void*)0); |
| 239 | if (!_XcursorReadUInt (file, &head.header)) |
| 240 | return NULL((void*)0); |
| 241 | if (!_XcursorReadUInt (file, &head.version)) |
| 242 | return NULL((void*)0); |
| 243 | if (!_XcursorReadUInt (file, &head.ntoc)) |
| 244 | return NULL((void*)0); |
| 245 | skip = head.header - XCURSOR_FILE_HEADER_LEN(4 * 4); |
| 246 | if (skip) |
| 247 | if ((*file->seek) (file, skip, SEEK_CUR1) == EOF(-1)) |
| 248 | return NULL((void*)0); |
| 249 | fileHeader = _XcursorFileHeaderCreate (head.ntoc); |
| 250 | if (!fileHeader) |
| 251 | return NULL((void*)0); |
| 252 | fileHeader->magic = head.magic; |
| 253 | fileHeader->header = head.header; |
| 254 | fileHeader->version = head.version; |
| 255 | fileHeader->ntoc = head.ntoc; |
| 256 | for (n = 0; n < fileHeader->ntoc; n++) |
| 257 | { |
| 258 | if (!_XcursorReadUInt (file, &fileHeader->tocs[n].type)) |
| 259 | break; |
| 260 | if (!_XcursorReadUInt (file, &fileHeader->tocs[n].subtype)) |
| 261 | break; |
| 262 | if (!_XcursorReadUInt (file, &fileHeader->tocs[n].position)) |
| 263 | break; |
| 264 | } |
| 265 | if (n != fileHeader->ntoc) |
| 266 | { |
| 267 | _XcursorFileHeaderDestroy (fileHeader); |
| 268 | return NULL((void*)0); |
| 269 | } |
| 270 | return fileHeader; |
| 271 | } |
| 272 | |
| 273 | static XcursorUInt |
| 274 | _XcursorFileHeaderLength (XcursorFileHeader *fileHeader) |
| 275 | { |
| 276 | return (XCURSOR_FILE_HEADER_LEN(4 * 4) + |
| 277 | fileHeader->ntoc * XCURSOR_FILE_TOC_LEN(3 * 4)); |
| 278 | } |
| 279 | |
| 280 | static XcursorBool |
| 281 | _XcursorWriteFileHeader (XcursorFile *file, XcursorFileHeader *fileHeader) |
| 282 | { |
| 283 | int toc; |
| 284 | |
| 285 | if (!file || !fileHeader) |
| |
| 286 | return XcursorFalse0; |
| 287 | |
| 288 | if (!_XcursorWriteUInt (file, fileHeader->magic)) |
| 25 | | Calling '_XcursorWriteUInt' | |
|
| 30 | | Returning from '_XcursorWriteUInt' | |
|
| |
| 289 | return XcursorFalse0; |
| 290 | if (!_XcursorWriteUInt (file, fileHeader->header)) |
| 32 | | Calling '_XcursorWriteUInt' | |
|
| 37 | | Returning from '_XcursorWriteUInt' | |
|
| |
| 291 | return XcursorFalse0; |
| 292 | if (!_XcursorWriteUInt (file, fileHeader->version)) |
| 39 | | Calling '_XcursorWriteUInt' | |
|
| 44 | | Returning from '_XcursorWriteUInt' | |
|
| |
| 293 | return XcursorFalse0; |
| 294 | if (!_XcursorWriteUInt (file, fileHeader->ntoc)) |
| 46 | | Calling '_XcursorWriteUInt' | |
|
| 51 | | Returning from '_XcursorWriteUInt' | |
|
| |
| 295 | return XcursorFalse0; |
| 296 | for (toc = 0; toc < fileHeader->ntoc; toc++) |
| 53 | | Loop condition is true. Entering loop body | |
|
| 297 | { |
| 298 | if (!_XcursorWriteUInt (file, fileHeader->tocs[toc].type)) |
| 54 | | Function call argument is an uninitialized value |
|
| 299 | return XcursorFalse0; |
| 300 | if (!_XcursorWriteUInt (file, fileHeader->tocs[toc].subtype)) |
| 301 | return XcursorFalse0; |
| 302 | if (!_XcursorWriteUInt (file, fileHeader->tocs[toc].position)) |
| 303 | return XcursorFalse0; |
| 304 | } |
| 305 | return XcursorTrue1; |
| 306 | } |
| 307 | |
| 308 | static XcursorBool |
| 309 | _XcursorSeekToToc (XcursorFile *file, |
| 310 | XcursorFileHeader *fileHeader, |
| 311 | int toc) |
| 312 | { |
| 313 | if (!file || !fileHeader || \ |
| 314 | (*file->seek) (file, fileHeader->tocs[toc].position, SEEK_SET0) == EOF(-1)) |
| 315 | return XcursorFalse0; |
| 316 | return XcursorTrue1; |
| 317 | } |
| 318 | |
| 319 | static XcursorBool |
| 320 | _XcursorFileReadChunkHeader (XcursorFile *file, |
| 321 | XcursorFileHeader *fileHeader, |
| 322 | int toc, |
| 323 | XcursorChunkHeader *chunkHeader) |
| 324 | { |
| 325 | if (!file || !fileHeader || !chunkHeader) |
| 326 | return XcursorFalse0; |
| 327 | if (!_XcursorSeekToToc (file, fileHeader, toc)) |
| 328 | return XcursorFalse0; |
| 329 | if (!_XcursorReadUInt (file, &chunkHeader->header)) |
| 330 | return XcursorFalse0; |
| 331 | if (!_XcursorReadUInt (file, &chunkHeader->type)) |
| 332 | return XcursorFalse0; |
| 333 | if (!_XcursorReadUInt (file, &chunkHeader->subtype)) |
| 334 | return XcursorFalse0; |
| 335 | if (!_XcursorReadUInt (file, &chunkHeader->version)) |
| 336 | return XcursorFalse0; |
| 337 | |
| 338 | if (chunkHeader->type != fileHeader->tocs[toc].type || |
| 339 | chunkHeader->subtype != fileHeader->tocs[toc].subtype) |
| 340 | return XcursorFalse0; |
| 341 | return XcursorTrue1; |
| 342 | } |
| 343 | |
| 344 | static XcursorBool |
| 345 | _XcursorFileWriteChunkHeader (XcursorFile *file, |
| 346 | XcursorFileHeader *fileHeader, |
| 347 | int toc, |
| 348 | XcursorChunkHeader *chunkHeader) |
| 349 | { |
| 350 | if (!file || !fileHeader || !chunkHeader) |
| 351 | return XcursorFalse0; |
| 352 | if (!_XcursorSeekToToc (file, fileHeader, toc)) |
| 353 | return XcursorFalse0; |
| 354 | if (!_XcursorWriteUInt (file, chunkHeader->header)) |
| 355 | return XcursorFalse0; |
| 356 | if (!_XcursorWriteUInt (file, chunkHeader->type)) |
| 357 | return XcursorFalse0; |
| 358 | if (!_XcursorWriteUInt (file, chunkHeader->subtype)) |
| 359 | return XcursorFalse0; |
| 360 | if (!_XcursorWriteUInt (file, chunkHeader->version)) |
| 361 | return XcursorFalse0; |
| 362 | return XcursorTrue1; |
| 363 | } |
| 364 | |
| 365 | #define dist(a,b)((a) > (b) ? (a) - (b) : (b) - (a)) ((a) > (b) ? (a) - (b) : (b) - (a)) |
| 366 | |
| 367 | static XcursorDim |
| 368 | _XcursorFindBestSize (XcursorFileHeader *fileHeader, |
| 369 | XcursorDim size, |
| 370 | int *nsizesp) |
| 371 | { |
| 372 | int n; |
| 373 | int nsizes = 0; |
| 374 | XcursorDim bestSize = 0; |
| 375 | XcursorDim thisSize; |
| 376 | |
| 377 | if (!fileHeader || !nsizesp) |
| 378 | return 0; |
| 379 | |
| 380 | for (n = 0; n < fileHeader->ntoc; n++) |
| 381 | { |
| 382 | if (fileHeader->tocs[n].type != XCURSOR_IMAGE_TYPE0xfffd0002) |
| 383 | continue; |
| 384 | thisSize = fileHeader->tocs[n].subtype; |
| 385 | if (!bestSize || dist (thisSize, size)((thisSize) > (size) ? (thisSize) - (size) : (size) - (thisSize )) < dist (bestSize, size)((bestSize) > (size) ? (bestSize) - (size) : (size) - (bestSize ))) |
| 386 | { |
| 387 | bestSize = thisSize; |
| 388 | nsizes = 1; |
| 389 | } |
| 390 | else if (thisSize == bestSize) |
| 391 | nsizes++; |
| 392 | } |
| 393 | *nsizesp = nsizes; |
| 394 | return bestSize; |
| 395 | } |
| 396 | |
| 397 | static int |
| 398 | _XcursorFindImageToc (XcursorFileHeader *fileHeader, |
| 399 | XcursorDim size, |
| 400 | int count) |
| 401 | { |
| 402 | int toc; |
| 403 | XcursorDim thisSize; |
| 404 | |
| 405 | if (!fileHeader) |
| 406 | return 0; |
| 407 | |
| 408 | for (toc = 0; toc < fileHeader->ntoc; toc++) |
| 409 | { |
| 410 | if (fileHeader->tocs[toc].type != XCURSOR_IMAGE_TYPE0xfffd0002) |
| 411 | continue; |
| 412 | thisSize = fileHeader->tocs[toc].subtype; |
| 413 | if (thisSize != size) |
| 414 | continue; |
| 415 | if (!count) |
| 416 | break; |
| 417 | count--; |
| 418 | } |
| 419 | if (toc == fileHeader->ntoc) |
| 420 | return -1; |
| 421 | return toc; |
| 422 | } |
| 423 | |
| 424 | static XcursorImage * |
| 425 | _XcursorReadImage (XcursorFile *file, |
| 426 | XcursorFileHeader *fileHeader, |
| 427 | int toc) |
| 428 | { |
| 429 | XcursorChunkHeader chunkHeader; |
| 430 | XcursorImage head; |
| 431 | XcursorImage *image; |
| 432 | int n; |
| 433 | XcursorPixel *p; |
| 434 | |
| 435 | if (!file || !fileHeader) |
| 436 | return NULL((void*)0); |
| 437 | |
| 438 | if (!_XcursorFileReadChunkHeader (file, fileHeader, toc, &chunkHeader)) |
| 439 | return NULL((void*)0); |
| 440 | if (!_XcursorReadUInt (file, &head.width)) |
| 441 | return NULL((void*)0); |
| 442 | if (!_XcursorReadUInt (file, &head.height)) |
| 443 | return NULL((void*)0); |
| 444 | if (!_XcursorReadUInt (file, &head.xhot)) |
| 445 | return NULL((void*)0); |
| 446 | if (!_XcursorReadUInt (file, &head.yhot)) |
| 447 | return NULL((void*)0); |
| 448 | if (!_XcursorReadUInt (file, &head.delay)) |
| 449 | return NULL((void*)0); |
| 450 | |
| 451 | if (head.width >= 0x10000 || head.height > 0x10000) |
| 452 | return NULL((void*)0); |
| 453 | if (head.width == 0 || head.height == 0) |
| 454 | return NULL((void*)0); |
| 455 | if (head.xhot > head.width || head.yhot > head.height) |
| 456 | return NULL((void*)0); |
| 457 | |
| 458 | |
| 459 | image = XcursorImageCreate (head.width, head.height); |
| 460 | if (chunkHeader.version < image->version) |
| 461 | image->version = chunkHeader.version; |
| 462 | image->size = chunkHeader.subtype; |
| 463 | image->xhot = head.xhot; |
| 464 | image->yhot = head.yhot; |
| 465 | image->delay = head.delay; |
| 466 | n = image->width * image->height; |
| 467 | p = image->pixels; |
| 468 | while (n--) |
| 469 | { |
| 470 | if (!_XcursorReadUInt (file, p)) |
| 471 | { |
| 472 | XcursorImageDestroy (image); |
| 473 | return NULL((void*)0); |
| 474 | } |
| 475 | p++; |
| 476 | } |
| 477 | return image; |
| 478 | } |
| 479 | |
| 480 | static XcursorUInt |
| 481 | _XcursorImageLength (XcursorImage *image) |
| 482 | { |
| 483 | if (!image) |
| 484 | return 0; |
| 485 | |
| 486 | return XCURSOR_IMAGE_HEADER_LEN((4 * 4) + (5*4)) + (image->width * image->height) * 4; |
| 487 | } |
| 488 | |
| 489 | static XcursorBool |
| 490 | _XcursorWriteImage (XcursorFile *file, |
| 491 | XcursorFileHeader *fileHeader, |
| 492 | int toc, |
| 493 | XcursorImage *image) |
| 494 | { |
| 495 | XcursorChunkHeader chunkHeader; |
| 496 | int n; |
| 497 | XcursorPixel *p; |
| 498 | |
| 499 | if (!file || !fileHeader || !image) |
| 500 | return XcursorFalse0; |
| 501 | |
| 502 | |
| 503 | if (image->width > XCURSOR_IMAGE_MAX_SIZE0x7fff || |
| 504 | image->height > XCURSOR_IMAGE_MAX_SIZE0x7fff) |
| 505 | return XcursorFalse0; |
| 506 | if (image->width == 0 || image->height == 0) |
| 507 | return XcursorFalse0; |
| 508 | if (image->xhot > image->width || image->yhot > image->height) |
| 509 | return XcursorFalse0; |
| 510 | |
| 511 | |
| 512 | chunkHeader.header = XCURSOR_IMAGE_HEADER_LEN((4 * 4) + (5*4)); |
| 513 | chunkHeader.type = XCURSOR_IMAGE_TYPE0xfffd0002; |
| 514 | chunkHeader.subtype = image->size; |
| 515 | chunkHeader.version = XCURSOR_IMAGE_VERSION1; |
| 516 | |
| 517 | if (!_XcursorFileWriteChunkHeader (file, fileHeader, toc, &chunkHeader)) |
| 518 | return XcursorFalse0; |
| 519 | |
| 520 | |
| 521 | if (!_XcursorWriteUInt (file, image->width)) |
| 522 | return XcursorFalse0; |
| 523 | if (!_XcursorWriteUInt (file, image->height)) |
| 524 | return XcursorFalse0; |
| 525 | if (!_XcursorWriteUInt (file, image->xhot)) |
| 526 | return XcursorFalse0; |
| 527 | if (!_XcursorWriteUInt (file, image->yhot)) |
| 528 | return XcursorFalse0; |
| 529 | if (!_XcursorWriteUInt (file, image->delay)) |
| 530 | return XcursorFalse0; |
| 531 | |
| 532 | |
| 533 | n = image->width * image->height; |
| 534 | p = image->pixels; |
| 535 | while (n--) |
| 536 | { |
| 537 | if (!_XcursorWriteUInt (file, *p)) |
| 538 | return XcursorFalse0; |
| 539 | p++; |
| 540 | } |
| 541 | return XcursorTrue1; |
| 542 | } |
| 543 | |
| 544 | static XcursorComment * |
| 545 | _XcursorReadComment (XcursorFile *file, |
| 546 | XcursorFileHeader *fileHeader, |
| 547 | int toc) |
| 548 | { |
| 549 | XcursorChunkHeader chunkHeader; |
| 550 | XcursorUInt length; |
| 551 | XcursorComment *comment; |
| 552 | |
| 553 | if (!file || !fileHeader) |
| 554 | return NULL((void*)0); |
| 555 | |
| 556 | |
| 557 | if (!_XcursorFileReadChunkHeader (file, fileHeader, toc, &chunkHeader)) |
| 558 | return NULL((void*)0); |
| 559 | |
| 560 | if (!_XcursorReadUInt (file, &length)) |
| 561 | return NULL((void*)0); |
| 562 | comment = XcursorCommentCreate (chunkHeader.subtype, length); |
| 563 | if (!comment) |
| 564 | return NULL((void*)0); |
| 565 | if (!_XcursorReadBytes (file, comment->comment, length)) |
| 566 | { |
| 567 | XcursorCommentDestroy (comment); |
| 568 | return NULL((void*)0); |
| 569 | } |
| 570 | comment->comment[length] = '\0'; |
| 571 | return comment; |
| 572 | } |
| 573 | |
| 574 | static XcursorUInt |
| 575 | _XcursorCommentLength (XcursorComment *comment) |
| 576 | { |
| 577 | return XCURSOR_COMMENT_HEADER_LEN((4 * 4) + (1 *4)) + strlen (comment->comment); |
| 578 | } |
| 579 | |
| 580 | static XcursorBool |
| 581 | _XcursorWriteComment (XcursorFile *file, |
| 582 | XcursorFileHeader *fileHeader, |
| 583 | int toc, |
| 584 | XcursorComment *comment) |
| 585 | { |
| 586 | XcursorChunkHeader chunkHeader; |
| 587 | XcursorUInt length; |
| 588 | |
| 589 | if (!file || !fileHeader || !comment || !comment->comment) |
| 590 | return XcursorFalse0; |
| 591 | |
| 592 | length = strlen (comment->comment); |
| 593 | |
| 594 | |
| 595 | if (length > XCURSOR_COMMENT_MAX_LEN0x100000) |
| 596 | return XcursorFalse0; |
| 597 | |
| 598 | |
| 599 | chunkHeader.header = XCURSOR_COMMENT_HEADER_LEN((4 * 4) + (1 *4)); |
| 600 | chunkHeader.type = XCURSOR_COMMENT_TYPE0xfffe0001; |
| 601 | chunkHeader.subtype = comment->comment_type; |
| 602 | chunkHeader.version = XCURSOR_COMMENT_VERSION1; |
| 603 | |
| 604 | if (!_XcursorFileWriteChunkHeader (file, fileHeader, toc, &chunkHeader)) |
| 605 | return XcursorFalse0; |
| 606 | |
| 607 | |
| 608 | if (!_XcursorWriteUInt (file, length)) |
| 609 | return XcursorFalse0; |
| 610 | |
| 611 | if (!_XcursorWriteBytes (file, comment->comment, length)) |
| 612 | return XcursorFalse0; |
| 613 | return XcursorTrue1; |
| 614 | } |
| 615 | |
| 616 | XcursorImage * |
| 617 | XcursorXcFileLoadImage (XcursorFile *file, int size) |
| 618 | { |
| 619 | XcursorFileHeader *fileHeader; |
| 620 | XcursorDim bestSize; |
| 621 | int nsize; |
| 622 | int toc; |
| 623 | XcursorImage *image; |
| 624 | |
| 625 | if (size < 0) |
| 626 | return NULL((void*)0); |
| 627 | fileHeader = _XcursorReadFileHeader (file); |
| 628 | if (!fileHeader) |
| 629 | return NULL((void*)0); |
| 630 | bestSize = _XcursorFindBestSize (fileHeader, (XcursorDim) size, &nsize); |
| 631 | if (!bestSize) |
| 632 | return NULL((void*)0); |
| 633 | toc = _XcursorFindImageToc (fileHeader, bestSize, 0); |
| 634 | if (toc < 0) |
| 635 | return NULL((void*)0); |
| 636 | image = _XcursorReadImage (file, fileHeader, toc); |
| 637 | _XcursorFileHeaderDestroy (fileHeader); |
| 638 | return image; |
| 639 | } |
| 640 | |
| 641 | XcursorImages * |
| 642 | XcursorXcFileLoadImages (XcursorFile *file, int size) |
| 643 | { |
| 644 | XcursorFileHeader *fileHeader; |
| 645 | XcursorDim bestSize; |
| 646 | int nsize; |
| 647 | XcursorImages *images; |
| 648 | int n; |
| 649 | int toc; |
| 650 | |
| 651 | if (!file || size < 0) |
| 652 | return NULL((void*)0); |
| 653 | fileHeader = _XcursorReadFileHeader (file); |
| 654 | if (!fileHeader) |
| 655 | return NULL((void*)0); |
| 656 | bestSize = _XcursorFindBestSize (fileHeader, (XcursorDim) size, &nsize); |
| 657 | if (!bestSize) |
| 658 | { |
| 659 | _XcursorFileHeaderDestroy (fileHeader); |
| 660 | return NULL((void*)0); |
| 661 | } |
| 662 | images = XcursorImagesCreate (nsize); |
| 663 | if (!images) |
| 664 | { |
| 665 | _XcursorFileHeaderDestroy (fileHeader); |
| 666 | return NULL((void*)0); |
| 667 | } |
| 668 | for (n = 0; n < nsize; n++) |
| 669 | { |
| 670 | toc = _XcursorFindImageToc (fileHeader, bestSize, n); |
| 671 | if (toc < 0) |
| 672 | break; |
| 673 | images->images[images->nimage] = _XcursorReadImage (file, fileHeader, |
| 674 | toc); |
| 675 | if (!images->images[images->nimage]) |
| 676 | break; |
| 677 | images->nimage++; |
| 678 | } |
| 679 | _XcursorFileHeaderDestroy (fileHeader); |
| 680 | if (images->nimage != nsize) |
| 681 | { |
| 682 | XcursorImagesDestroy (images); |
| 683 | images = NULL((void*)0); |
| 684 | } |
| 685 | return images; |
| 686 | } |
| 687 | |
| 688 | XcursorImages * |
| 689 | XcursorXcFileLoadAllImages (XcursorFile *file) |
| 690 | { |
| 691 | XcursorFileHeader *fileHeader; |
| 692 | XcursorImage *image; |
| 693 | XcursorImages *images; |
| 694 | int nimage; |
| 695 | int n; |
| 696 | int toc; |
| 697 | |
| 698 | if (!file) |
| 699 | return NULL((void*)0); |
| 700 | |
| 701 | fileHeader = _XcursorReadFileHeader (file); |
| 702 | if (!fileHeader) |
| 703 | return NULL((void*)0); |
| 704 | nimage = 0; |
| 705 | for (n = 0; n < fileHeader->ntoc; n++) |
| 706 | { |
| 707 | switch (fileHeader->tocs[n].type) { |
| 708 | case XCURSOR_IMAGE_TYPE0xfffd0002: |
| 709 | nimage++; |
| 710 | break; |
| 711 | } |
| 712 | } |
| 713 | images = XcursorImagesCreate (nimage); |
| 714 | if (!images) |
| 715 | { |
| 716 | _XcursorFileHeaderDestroy (fileHeader); |
| 717 | return NULL((void*)0); |
| 718 | } |
| 719 | for (toc = 0; toc < fileHeader->ntoc; toc++) |
| 720 | { |
| 721 | switch (fileHeader->tocs[toc].type) { |
| 722 | case XCURSOR_IMAGE_TYPE0xfffd0002: |
| 723 | image = _XcursorReadImage (file, fileHeader, toc); |
| 724 | if (image) |
| 725 | { |
| 726 | images->images[images->nimage] = image; |
| 727 | images->nimage++; |
| 728 | } |
| 729 | break; |
| 730 | } |
| 731 | } |
| 732 | _XcursorFileHeaderDestroy (fileHeader); |
| 733 | if (images->nimage != nimage) |
| 734 | { |
| 735 | XcursorImagesDestroy (images); |
| 736 | images = NULL((void*)0); |
| 737 | } |
| 738 | return images; |
| 739 | } |
| 740 | |
| 741 | XcursorBool |
| 742 | XcursorXcFileLoad (XcursorFile *file, |
| 743 | XcursorComments **commentsp, |
| 744 | XcursorImages **imagesp) |
| 745 | { |
| 746 | XcursorFileHeader *fileHeader; |
| 747 | int nimage; |
| 748 | int ncomment; |
| 749 | XcursorImages *images; |
| 750 | XcursorImage *image; |
| 751 | XcursorComment *comment; |
| 752 | XcursorComments *comments; |
| 753 | int toc; |
| 754 | |
| 755 | if (!file) |
| 756 | return 0; |
| 757 | fileHeader = _XcursorReadFileHeader (file); |
| 758 | if (!fileHeader) |
| 759 | return 0; |
| 760 | nimage = 0; |
| 761 | ncomment = 0; |
| 762 | for (toc = 0; toc < fileHeader->ntoc; toc++) |
| 763 | { |
| 764 | switch (fileHeader->tocs[toc].type) { |
| 765 | case XCURSOR_COMMENT_TYPE0xfffe0001: |
| 766 | ncomment++; |
| 767 | break; |
| 768 | case XCURSOR_IMAGE_TYPE0xfffd0002: |
| 769 | nimage++; |
| 770 | break; |
| 771 | } |
| 772 | } |
| 773 | images = XcursorImagesCreate (nimage); |
| 774 | if (!images) |
| 775 | return 0; |
| 776 | comments = XcursorCommentsCreate (ncomment); |
| 777 | if (!comments) |
| 778 | { |
| 779 | XcursorImagesDestroy (images); |
| 780 | return 0; |
| 781 | } |
| 782 | for (toc = 0; toc < fileHeader->ntoc; toc++) |
| 783 | { |
| 784 | switch (fileHeader->tocs[toc].type) { |
| 785 | case XCURSOR_COMMENT_TYPE0xfffe0001: |
| 786 | comment = _XcursorReadComment (file, fileHeader, toc); |
| 787 | if (comment) |
| 788 | { |
| 789 | comments->comments[comments->ncomment] = comment; |
| 790 | comments->ncomment++; |
| 791 | } |
| 792 | break; |
| 793 | case XCURSOR_IMAGE_TYPE0xfffd0002: |
| 794 | image = _XcursorReadImage (file, fileHeader, toc); |
| 795 | if (image) |
| 796 | { |
| 797 | images->images[images->nimage] = image; |
| 798 | images->nimage++; |
| 799 | } |
| 800 | break; |
| 801 | } |
| 802 | } |
| 803 | _XcursorFileHeaderDestroy (fileHeader); |
| 804 | if (images->nimage != nimage || comments->ncomment != ncomment) |
| 805 | { |
| 806 | XcursorImagesDestroy (images); |
| 807 | XcursorCommentsDestroy (comments); |
| 808 | images = NULL((void*)0); |
| 809 | comments = NULL((void*)0); |
| 810 | return XcursorFalse0; |
| 811 | } |
| 812 | *imagesp = images; |
| 813 | *commentsp = comments; |
| 814 | return XcursorTrue1; |
| 815 | } |
| 816 | |
| 817 | XcursorBool |
| 818 | XcursorXcFileSave (XcursorFile *file, |
| 819 | const XcursorComments *comments, |
| 820 | const XcursorImages *images) |
| 821 | { |
| 822 | XcursorFileHeader *fileHeader; |
| 823 | XcursorUInt position; |
| 824 | int n; |
| 825 | int toc; |
| 826 | |
| 827 | if (!file || !comments || !images) |
| |
| 828 | return XcursorFalse0; |
| 829 | |
| 830 | fileHeader = _XcursorFileHeaderCreate (comments->ncomment + images->nimage); |
| 11 | | Calling '_XcursorFileHeaderCreate' | |
|
| 17 | | Returning from '_XcursorFileHeaderCreate' | |
|
| 831 | if (!fileHeader) |
| |
| 832 | return XcursorFalse0; |
| 833 | |
| 834 | position = _XcursorFileHeaderLength (fileHeader); |
| 19 | | Calling '_XcursorFileHeaderLength' | |
|
| 20 | | Returning from '_XcursorFileHeaderLength' | |
|
| 835 | |
| 836 | |
| 837 | |
| 838 | |
| 839 | |
| 840 | |
| 841 | toc = 0; |
| 842 | for (n = 0; n < images->nimage; n++) |
| 21 | | Loop condition is false. Execution continues on line 851 | |
|
| 843 | { |
| 844 | fileHeader->tocs[toc].type = XCURSOR_IMAGE_TYPE0xfffd0002; |
| 845 | fileHeader->tocs[toc].subtype = images->images[n]->size; |
| 846 | fileHeader->tocs[toc].position = position; |
| 847 | position += _XcursorImageLength (images->images[n]); |
| 848 | toc++; |
| 849 | } |
| 850 | |
| 851 | for (n = 0; n < comments->ncomment; n++) |
| 22 | | Loop condition is false. Execution continues on line 863 | |
|
| 852 | { |
| 853 | fileHeader->tocs[toc].type = XCURSOR_COMMENT_TYPE0xfffe0001; |
| 854 | fileHeader->tocs[toc].subtype = comments->comments[n]->comment_type; |
| 855 | fileHeader->tocs[toc].position = position; |
| 856 | position += _XcursorCommentLength (comments->comments[n]); |
| 857 | toc++; |
| 858 | } |
| 859 | |
| 860 | |
| 861 | |
| 862 | |
| 863 | if (!_XcursorWriteFileHeader (file, fileHeader)) |
| 23 | | Calling '_XcursorWriteFileHeader' | |
|
| 864 | goto bail; |
| 865 | |
| 866 | |
| 867 | |
| 868 | |
| 869 | toc = 0; |
| 870 | for (n = 0; n < images->nimage; n++) |
| 871 | { |
| 872 | if (!_XcursorWriteImage (file, fileHeader, toc, images->images[n])) |
| 873 | goto bail; |
| 874 | toc++; |
| 875 | } |
| 876 | |
| 877 | |
| 878 | |
| 879 | |
| 880 | for (n = 0; n < comments->ncomment; n++) |
| 881 | { |
| 882 | if (!_XcursorWriteComment (file, fileHeader, toc, comments->comments[n])) |
| 883 | goto bail; |
| 884 | toc++; |
| 885 | } |
| 886 | |
| 887 | _XcursorFileHeaderDestroy (fileHeader); |
| 888 | return XcursorTrue1; |
| 889 | bail: |
| 890 | _XcursorFileHeaderDestroy (fileHeader); |
| 891 | return XcursorFalse0; |
| 892 | } |
| 893 | |
| 894 | static int |
| 895 | _XcursorStdioFileRead (XcursorFile *file, unsigned char *buf, int len) |
| 896 | { |
| 897 | FILE *f = file->closure; |
| 898 | return fread (buf, 1, len, f); |
| 899 | } |
| 900 | |
| 901 | static int |
| 902 | _XcursorStdioFileWrite (XcursorFile *file, unsigned char *buf, int len) |
| 903 | { |
| 904 | FILE *f = file->closure; |
| 905 | return fwrite (buf, 1, len, f); |
| 906 | } |
| 907 | |
| 908 | static int |
| 909 | _XcursorStdioFileSeek (XcursorFile *file, long offset, int whence) |
| 910 | { |
| 911 | FILE *f = file->closure; |
| 912 | return fseek (f, offset, whence); |
| 913 | } |
| 914 | |
| 915 | static void |
| 916 | _XcursorStdioFileInitialize (FILE *stdfile, XcursorFile *file) |
| 917 | { |
| 918 | file->closure = stdfile; |
| 919 | file->read = _XcursorStdioFileRead; |
| 920 | file->write = _XcursorStdioFileWrite; |
| 921 | file->seek = _XcursorStdioFileSeek; |
| 922 | } |
| 923 | |
| 924 | XcursorImage * |
| 925 | XcursorFileLoadImage (FILE *file, int size) |
| 926 | { |
| 927 | XcursorFile f; |
| 928 | |
| 929 | if (!file) |
| 930 | return NULL((void*)0); |
| 931 | |
| 932 | _XcursorStdioFileInitialize (file, &f); |
| 933 | return XcursorXcFileLoadImage (&f, size); |
| 934 | } |
| 935 | |
| 936 | XcursorImages * |
| 937 | XcursorFileLoadImages (FILE *file, int size) |
| 938 | { |
| 939 | XcursorFile f; |
| 940 | |
| 941 | if (!file) |
| 942 | return NULL((void*)0); |
| 943 | |
| 944 | _XcursorStdioFileInitialize (file, &f); |
| 945 | return XcursorXcFileLoadImages (&f, size); |
| 946 | } |
| 947 | |
| 948 | XcursorImages * |
| 949 | XcursorFileLoadAllImages (FILE *file) |
| 950 | { |
| 951 | XcursorFile f; |
| 952 | |
| 953 | if (!file) |
| 954 | return NULL((void*)0); |
| 955 | |
| 956 | _XcursorStdioFileInitialize (file, &f); |
| 957 | return XcursorXcFileLoadAllImages (&f); |
| 958 | } |
| 959 | |
| 960 | XcursorBool |
| 961 | XcursorFileLoad (FILE *file, |
| 962 | XcursorComments **commentsp, |
| 963 | XcursorImages **imagesp) |
| 964 | { |
| 965 | XcursorFile f; |
| 966 | |
| 967 | if (!file || !commentsp || !imagesp) |
| 968 | return XcursorFalse0; |
| 969 | |
| 970 | _XcursorStdioFileInitialize (file, &f); |
| 971 | return XcursorXcFileLoad (&f, commentsp, imagesp); |
| 972 | } |
| 973 | |
| 974 | XcursorBool |
| 975 | XcursorFileSaveImages (FILE *file, const XcursorImages *images) |
| 976 | { |
| 977 | XcursorComments *comments; |
| 978 | XcursorFile f; |
| 979 | XcursorBool ret; |
| 980 | |
| 981 | if (!file || !images) |
| 982 | return 0; |
| 983 | if ((comments = XcursorCommentsCreate (0)) == NULL((void*)0)) |
| 984 | return 0; |
| 985 | _XcursorStdioFileInitialize (file, &f); |
| 986 | ret = XcursorXcFileSave (&f, comments, images) && fflush (file) != EOF(-1); |
| 987 | XcursorCommentsDestroy (comments); |
| 988 | return ret; |
| 989 | } |
| 990 | |
| 991 | XcursorBool |
| 992 | XcursorFileSave (FILE * file, |
| 993 | const XcursorComments *comments, |
| 994 | const XcursorImages *images) |
| 995 | { |
| 996 | XcursorFile f; |
| 997 | |
| 998 | if (!file || !comments || !images) |
| |
| 999 | return XcursorFalse0; |
| 1000 | |
| 1001 | _XcursorStdioFileInitialize (file, &f); |
| 1002 | return XcursorXcFileSave (&f, comments, images) && fflush (file) != EOF(-1); |
| 9 | | Calling 'XcursorXcFileSave' | |
|
| 1003 | } |
| 1004 | |
| 1005 | XcursorImage * |
| 1006 | XcursorFilenameLoadImage (const char *file, int size) |
| 1007 | { |
| 1008 | FILE *f; |
| 1009 | XcursorImage *image; |
| 1010 | |
| 1011 | if (!file || size < 0) |
| 1012 | return NULL((void*)0); |
| 1013 | |
| 1014 | f = fopen (file, "r"); |
| 1015 | if (!f) |
| 1016 | return NULL((void*)0); |
| 1017 | image = XcursorFileLoadImage (f, size); |
| 1018 | fclose (f); |
| 1019 | return image; |
| 1020 | } |
| 1021 | |
| 1022 | XcursorImages * |
| 1023 | XcursorFilenameLoadImages (const char *file, int size) |
| 1024 | { |
| 1025 | FILE *f; |
| 1026 | XcursorImages *images; |
| 1027 | |
| 1028 | if (!file || size < 0) |
| 1029 | return NULL((void*)0); |
| 1030 | |
| 1031 | f = fopen (file, "r"); |
| 1032 | if (!f) |
| 1033 | return NULL((void*)0); |
| 1034 | images = XcursorFileLoadImages (f, size); |
| 1035 | fclose (f); |
| 1036 | return images; |
| 1037 | } |
| 1038 | |
| 1039 | XcursorImages * |
| 1040 | XcursorFilenameLoadAllImages (const char *file) |
| 1041 | { |
| 1042 | FILE *f; |
| 1043 | XcursorImages *images; |
| 1044 | |
| 1045 | if (!file) |
| 1046 | return NULL((void*)0); |
| 1047 | |
| 1048 | f = fopen (file, "r"); |
| 1049 | if (!f) |
| 1050 | return NULL((void*)0); |
| 1051 | images = XcursorFileLoadAllImages (f); |
| 1052 | fclose (f); |
| 1053 | return images; |
| 1054 | } |
| 1055 | |
| 1056 | XcursorBool |
| 1057 | XcursorFilenameLoad (const char *file, |
| 1058 | XcursorComments **commentsp, |
| 1059 | XcursorImages **imagesp) |
| 1060 | { |
| 1061 | FILE *f; |
| 1062 | XcursorBool ret; |
| 1063 | |
| 1064 | if (!file) |
| 1065 | return XcursorFalse0; |
| 1066 | |
| 1067 | f = fopen (file, "r"); |
| 1068 | if (!f) |
| 1069 | return 0; |
| 1070 | ret = XcursorFileLoad (f, commentsp, imagesp); |
| 1071 | fclose (f); |
| 1072 | return ret; |
| 1073 | } |
| 1074 | |
| 1075 | XcursorBool |
| 1076 | XcursorFilenameSaveImages (const char *file, const XcursorImages *images) |
| 1077 | { |
| 1078 | FILE *f; |
| 1079 | XcursorBool ret; |
| 1080 | |
| 1081 | if (!file || !images) |
| 1082 | return XcursorFalse0; |
| 1083 | |
| 1084 | f = fopen (file, "w"); |
| 1085 | if (!f) |
| 1086 | return 0; |
| 1087 | ret = XcursorFileSaveImages (f, images); |
| 1088 | return fclose (f) != EOF(-1) && ret; |
| 1089 | } |
| 1090 | |
| 1091 | XcursorBool |
| 1092 | XcursorFilenameSave (const char *file, |
| 1093 | const XcursorComments *comments, |
| 1094 | const XcursorImages *images) |
| 1095 | { |
| 1096 | FILE *f; |
| 1097 | XcursorBool ret; |
| 1098 | |
| 1099 | if (!file || !comments || !images) |
| 1 | Assuming 'file' is non-null | |
|
| 2 | | Assuming 'comments' is non-null | |
|
| 3 | | Assuming 'images' is non-null | |
|
| |
| 1100 | return XcursorFalse0; |
| 1101 | |
| 1102 | f = fopen (file, "w"); |
| 1103 | if (!f) |
| 5 | | Assuming 'f' is non-null | |
|
| |
| 1104 | return 0; |
| 1105 | ret = XcursorFileSave (f, comments, images); |
| 7 | | Calling 'XcursorFileSave' | |
|
| 1106 | return fclose (f) != EOF(-1) && ret; |
| 1107 | } |