Mercurial > hg > dmlib
annotate libgfx.c @ 449:117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Sun, 04 Nov 2012 09:11:57 +0200 |
| parents | f1aab48a76fe |
| children | fdc91f2a0d27 |
| rev | line source |
|---|---|
| 435 | 1 /* |
| 2 * Functions for reading and converting various restricted | |
| 3 * C64/etc and/or indexed/paletted graphics formats. | |
| 4 * Programmed and designed by Matti 'ccr' Hamalainen | |
| 5 * (C) Copyright 2012 Tecnic Software productions (TNSP) | |
| 6 * | |
| 7 * Please read file 'COPYING' for information on license and distribution. | |
| 8 */ | |
| 9 #include "libgfx.h" | |
| 10 #include "dmfile.h" | |
| 11 #include "dmbstr.h" | |
| 12 | |
| 13 #ifdef DM_USE_LIBPNG | |
| 14 #include <png.h> | |
| 15 #endif | |
| 16 | |
| 17 | |
| 18 DMImage * dmImageAlloc(int width, int height) | |
| 19 { | |
| 20 DMImage *img = dmCalloc(1, sizeof(DMImage)); | |
| 21 if (img == NULL) | |
| 22 return NULL; | |
| 23 | |
| 24 img->width = img->pitch = width; | |
| 25 img->height = height; | |
| 26 img->data = dmMalloc(width * height * sizeof(Uint8)); | |
| 27 if (img->data == NULL) | |
| 28 { | |
| 29 dmFree(img); | |
| 30 return NULL; | |
| 31 } | |
| 32 | |
| 33 return img; | |
| 34 } | |
| 35 | |
| 36 | |
| 37 void dmImageFree(DMImage *img) | |
| 38 { | |
| 39 if (img != NULL) | |
| 40 { | |
| 41 if (!img->constpal) | |
| 42 { | |
| 43 dmFree(img->pal); | |
| 44 } | |
| 45 dmFree(img->data); | |
| 46 dmFree(img); | |
| 47 } | |
| 48 } | |
| 49 | |
| 50 | |
| 51 int dmImageGetBytesPerPixel(int format) | |
| 52 { | |
| 53 switch (format) | |
| 54 { | |
| 55 case DM_IFMT_PALETTE : return 1; | |
| 56 | |
| 57 case DM_IFMT_RGB_PLANE : | |
| 58 case DM_IFMT_RGB : return 3; | |
| 59 | |
| 60 case DM_IFMT_RGBA : return 4; | |
| 61 | |
| 62 default: return 0; | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 | |
| 67 int dmWriteImageData(DMImage *img, void *cbdata, BOOL (*writeRowCB)(void *, Uint8 *, size_t), const DMImageSpec *spec) | |
| 68 { | |
| 69 int x, y, yscale, xscale, res = 0, rowSize, rowWidth; | |
| 70 Uint8 *row = NULL; | |
| 71 | |
| 72 // Allocate memory for row buffer | |
| 73 rowWidth = img->width * spec->scale; | |
| 74 rowSize = rowWidth * dmImageGetBytesPerPixel(spec->format); | |
| 75 | |
| 76 if ((row = dmMalloc(rowSize + 16)) == NULL) | |
| 77 { | |
| 78 res = DMERR_MALLOC; | |
| 79 goto done; | |
| 80 } | |
| 81 | |
| 82 // Generate the image | |
| 83 for (y = 0; y < img->height; y++) | |
| 84 { | |
|
436
86f956e4580f
Cosmetics, rename a variable.
Matti Hamalainen <ccr@tnsp.org>
parents:
435
diff
changeset
|
85 Uint8 *ptr1 = row, |
| 435 | 86 *ptr2 = ptr1 + rowWidth, |
| 87 *ptr3 = ptr2 + rowWidth; | |
| 88 | |
| 89 for (x = 0; x < img->width; x++) | |
| 90 { | |
| 91 Uint8 c = img->data[(y * img->pitch) + x], qr, qg, qb, qa; | |
| 92 switch (spec->format) | |
| 93 { | |
| 94 case DM_IFMT_PALETTE: | |
| 95 for (xscale = 0; xscale < spec->scale; xscale++) | |
|
436
86f956e4580f
Cosmetics, rename a variable.
Matti Hamalainen <ccr@tnsp.org>
parents:
435
diff
changeset
|
96 *ptr1++ = c; |
| 435 | 97 break; |
| 98 | |
| 99 case DM_IFMT_RGBA: | |
| 100 qr = img->pal[c].r; | |
| 101 qg = img->pal[c].g; | |
| 102 qb = img->pal[c].b; | |
| 103 qa = (c == img->ctrans) ? 0 : 255; | |
| 104 | |
| 105 for (xscale = 0; xscale < spec->scale; xscale++) | |
| 106 { | |
|
436
86f956e4580f
Cosmetics, rename a variable.
Matti Hamalainen <ccr@tnsp.org>
parents:
435
diff
changeset
|
107 *ptr1++ = qr; |
|
86f956e4580f
Cosmetics, rename a variable.
Matti Hamalainen <ccr@tnsp.org>
parents:
435
diff
changeset
|
108 *ptr1++ = qg; |
|
86f956e4580f
Cosmetics, rename a variable.
Matti Hamalainen <ccr@tnsp.org>
parents:
435
diff
changeset
|
109 *ptr1++ = qb; |
|
86f956e4580f
Cosmetics, rename a variable.
Matti Hamalainen <ccr@tnsp.org>
parents:
435
diff
changeset
|
110 *ptr1++ = qa; |
| 435 | 111 } |
| 112 break; | |
| 113 | |
| 114 case DM_IFMT_RGB: | |
| 115 qr = img->pal[c].r; | |
| 116 qg = img->pal[c].g; | |
| 117 qb = img->pal[c].b; | |
| 118 | |
| 119 for (xscale = 0; xscale < spec->scale; xscale++) | |
| 120 { | |
|
436
86f956e4580f
Cosmetics, rename a variable.
Matti Hamalainen <ccr@tnsp.org>
parents:
435
diff
changeset
|
121 *ptr1++ = qr; |
|
86f956e4580f
Cosmetics, rename a variable.
Matti Hamalainen <ccr@tnsp.org>
parents:
435
diff
changeset
|
122 *ptr1++ = qg; |
|
86f956e4580f
Cosmetics, rename a variable.
Matti Hamalainen <ccr@tnsp.org>
parents:
435
diff
changeset
|
123 *ptr1++ = qb; |
| 435 | 124 } |
| 125 break; | |
| 126 | |
| 127 case DM_IFMT_RGB_PLANE: | |
| 128 qr = img->pal[c].r; | |
| 129 qg = img->pal[c].g; | |
| 130 qb = img->pal[c].b; | |
| 131 | |
| 132 for (xscale = 0; xscale < spec->scale; xscale++) | |
| 133 { | |
| 134 *ptr1++ = qr; | |
| 135 *ptr2++ = qg; | |
| 136 *ptr3++ = qb; | |
| 137 } | |
| 138 break; | |
| 139 } | |
| 140 } | |
| 141 | |
| 142 for (yscale = 0; yscale < spec->scale; yscale++) | |
| 143 { | |
| 144 if (!writeRowCB(cbdata, row, rowSize)) | |
| 145 { | |
| 146 res = DMERR_FWRITE; | |
| 147 goto done; | |
| 148 } | |
| 149 } | |
| 150 } | |
| 151 | |
| 152 done: | |
| 153 dmFree(row); | |
| 154 return res; | |
| 155 } | |
| 156 | |
| 157 | |
| 158 #define DMCOL(x) (((x) >> 4) & 0xf) | |
| 159 | |
| 160 int dmWriteIFFMasterRAWPalette(const char *filename, DMImage *img, int ncolors) | |
| 161 { | |
| 162 FILE *fp; | |
| 163 int i; | |
| 164 | |
| 165 if ((fp = fopen(filename, "w")) == NULL) | |
| 166 { | |
| 167 dmError("IFFMasterRAW: Could not open file '%s' for writing.\n", filename); | |
| 168 return -15; | |
| 169 } | |
| 170 | |
| 171 for (i = 0; i < ncolors; i++) | |
| 172 { | |
| 173 int color; | |
| 174 if (i < img->ncolors) | |
| 175 { | |
| 176 color = (DMCOL(img->pal[i].r) << 8) | | |
| 177 (DMCOL(img->pal[i].g) << 4) | | |
| 178 (DMCOL(img->pal[i].b)); | |
| 179 } | |
| 180 else | |
| 181 color = 0; | |
| 182 | |
| 183 fprintf(fp, "\tdc.w $%04X\n", color); | |
| 184 } | |
| 185 | |
|
440
b4ed5292d7bf
Close the file after writing.
Matti Hamalainen <ccr@tnsp.org>
parents:
436
diff
changeset
|
186 fclose(fp); |
| 435 | 187 return 0; |
| 188 } | |
| 189 | |
| 190 | |
| 191 int dmWriteIFFMasterRAWImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec) | |
| 192 { | |
| 193 int xc, yc, plane, res; | |
| 194 DMBitStream bs; | |
| 195 | |
| 196 if ((res = dmInitBitStream(&bs, fp)) != DMERR_OK) | |
| 197 return res; | |
| 198 | |
| 199 if (spec->interleave) | |
| 200 { | |
| 201 // Output bitplanes in interleaved format (each plane of line sequentially) | |
| 202 for (yc = 0; yc < img->height; yc++) | |
| 203 { | |
| 204 for (plane = 0; plane < spec->nplanes; plane++) | |
| 205 { | |
| 206 Uint8 *sp = img->data + yc * img->pitch; | |
| 207 for (xc = 0; xc < img->width; xc++) | |
| 208 { | |
| 209 if (!dmPutBits(&bs, (sp[xc] & (1 << plane)) ? 1 : 0, 1)) | |
| 210 return DMERR_FWRITE; | |
| 211 } | |
| 212 } | |
| 213 } | |
| 214 } | |
| 215 else | |
| 216 { | |
| 217 // Output each bitplane in sequence | |
| 218 for (plane = 0; plane < spec->nplanes; plane++) | |
| 219 { | |
| 220 for (yc = 0; yc < img->height; yc++) | |
| 221 { | |
| 222 Uint8 *sp = img->data + yc * img->pitch; | |
| 223 for (xc = 0; xc < img->width; xc++) | |
| 224 { | |
| 225 if (!dmPutBits(&bs, (sp[xc] & (1 << plane)) ? 1 : 0, 1)) | |
| 226 return DMERR_FWRITE; | |
| 227 } | |
| 228 } | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 return dmFlushBitStream(&bs); | |
| 233 } | |
| 234 | |
| 235 int dmWriteIFFMasterRAWImage(const char *filename, DMImage *img, DMImageSpec *spec) | |
| 236 { | |
| 237 FILE *fp; | |
| 238 int res; | |
| 239 | |
| 240 if ((fp = fopen(filename, "wb")) == NULL) | |
| 241 { | |
| 242 dmError("IFFMasterRAW: Could not open file '%s' for writing.\n", filename); | |
| 243 return DMERR_FOPEN; | |
| 244 } | |
| 245 | |
| 246 res = dmWriteIFFMasterRAWImageFILE(fp, img, spec); | |
| 247 | |
| 248 fclose(fp); | |
| 249 return res; | |
| 250 } | |
| 251 | |
| 252 | |
| 253 static BOOL dmWritePPMRow(void *cbdata, Uint8 *row, size_t len) | |
| 254 { | |
| 255 return fwrite(row, sizeof(Uint8), len, (FILE *) cbdata) == len; | |
| 256 } | |
| 257 | |
| 258 | |
| 259 int dmWritePPMImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec) | |
| 260 { | |
| 261 // Write PPM header | |
| 262 fprintf(fp, | |
| 263 "P6\n%d %d\n255\n", | |
| 264 img->width * spec->scale, | |
| 265 img->height * spec->scale); | |
| 266 | |
| 267 // Write image data | |
| 268 spec->format = DM_IFMT_RGB; | |
| 269 return dmWriteImageData(img, (void *) fp, dmWritePPMRow, spec); | |
| 270 } | |
| 271 | |
| 272 | |
| 273 int dmWritePPMImage(const char *filename, DMImage *img, DMImageSpec *spec) | |
| 274 { | |
| 275 FILE *fp; | |
| 276 int res; | |
| 277 | |
| 278 // Create output file | |
| 279 if ((fp = fopen(filename, "wb")) == NULL) | |
| 280 { | |
| 281 dmError("PPM: could not open file '%s' for writing.\n", filename); | |
| 282 return DMERR_FOPEN; | |
| 283 } | |
| 284 | |
| 285 res = dmWritePPMImageFILE(fp, img, spec); | |
| 286 | |
| 287 fclose(fp); | |
| 288 return res; | |
| 289 } | |
| 290 | |
| 291 | |
| 292 #ifdef DM_USE_LIBPNG | |
| 293 static BOOL dmWritePNGRow(void *cbdata, Uint8 *row, size_t len) | |
| 294 { | |
| 295 png_structp png_ptr = cbdata; | |
| 296 (void) len; | |
| 297 | |
| 298 if (setjmp(png_jmpbuf(png_ptr))) | |
| 299 return FALSE; | |
| 300 | |
| 301 png_write_row(png_ptr, row); | |
| 302 | |
| 303 return TRUE; | |
| 304 } | |
| 305 | |
| 306 | |
| 307 int dmWritePNGImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec) | |
| 308 { | |
| 309 png_structp png_ptr = NULL; | |
| 310 png_infop info_ptr = NULL; | |
| 311 png_colorp palette = NULL; | |
| 312 int fmt, res = DMERR_OK; | |
| 313 | |
| 314 // Create PNG structures | |
| 315 png_ptr = png_create_write_struct( | |
| 316 PNG_LIBPNG_VER_STRING, | |
| 317 NULL, NULL, NULL); | |
| 318 | |
| 319 if (png_ptr == NULL) | |
| 320 { | |
| 321 dmError("PNG: png_create_write_struct() failed.\n"); | |
| 322 res = DMERR_MALLOC; | |
| 323 goto error; | |
| 324 } | |
| 325 | |
| 326 info_ptr = png_create_info_struct(png_ptr); | |
| 327 if (info_ptr == NULL) | |
| 328 { | |
| 329 dmError("PNG: png_create_info_struct(%p) failed.\n", png_ptr); | |
| 330 res = DMERR_INIT_FAIL; | |
| 331 goto error; | |
| 332 } | |
| 333 | |
| 334 if (setjmp(png_jmpbuf(png_ptr))) | |
| 335 { | |
| 336 dmError("PNG: Error during image writing..\n"); | |
| 337 res = DMERR_INIT_FAIL; | |
| 338 goto error; | |
| 339 } | |
| 340 | |
| 341 png_init_io(png_ptr, fp); | |
| 342 | |
| 343 // Write PNG header info | |
| 344 switch (spec->format) | |
| 345 { | |
| 346 case DM_IFMT_PALETTE: fmt = PNG_COLOR_TYPE_PALETTE; break; | |
| 347 case DM_IFMT_RGB : fmt = PNG_COLOR_TYPE_RGB; break; | |
| 348 case DM_IFMT_RGBA : fmt = PNG_COLOR_TYPE_RGB_ALPHA; break; | |
| 349 default: | |
| 350 dmError("PNG: Internal error, unsupported image format %d.\n", spec->format); | |
| 351 goto error; | |
| 352 } | |
| 353 | |
| 354 png_set_IHDR(png_ptr, info_ptr, | |
| 355 img->width * spec->scale, | |
| 356 img->height * spec->scale, | |
| 357 8, /* bits per component */ | |
| 358 fmt, | |
| 359 PNG_INTERLACE_NONE, | |
| 360 PNG_COMPRESSION_TYPE_DEFAULT, | |
| 361 PNG_FILTER_TYPE_DEFAULT); | |
| 362 | |
| 363 // Palette | |
| 364 if (spec->format == DM_IFMT_PALETTE) | |
| 365 { | |
| 366 int i; | |
| 367 | |
| 368 palette = png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH * sizeof(png_color)); | |
| 369 if (palette == NULL) | |
| 370 { | |
| 371 dmError("PNG: Could not allocate palette structure."); | |
| 372 goto error; | |
| 373 } | |
| 374 | |
| 375 memset(palette, 0, PNG_MAX_PALETTE_LENGTH * sizeof(png_color)); | |
| 376 | |
| 377 for (i = 0; i < img->ncolors; i++) | |
| 378 { | |
| 379 palette[i].red = img->pal[i].r; | |
| 380 palette[i].green = img->pal[i].g; | |
| 381 palette[i].blue = img->pal[i].b; | |
| 382 } | |
| 383 | |
| 384 png_set_PLTE(png_ptr, info_ptr, palette, PNG_MAX_PALETTE_LENGTH); | |
| 385 } | |
| 386 | |
| 387 // png_set_gAMA(png_ptr, info_ptr, 2.2); | |
| 388 | |
| 389 png_write_info(png_ptr, info_ptr); | |
| 390 | |
| 391 | |
| 392 // Write compressed image data | |
| 393 dmWriteImageData(img, (void *) png_ptr, dmWritePNGRow, spec); | |
| 394 | |
| 395 // Write footer | |
| 396 png_write_end(png_ptr, NULL); | |
| 397 | |
| 398 error: | |
| 399 png_free(png_ptr, palette); | |
| 400 palette = NULL; | |
| 401 | |
| 402 if (png_ptr && info_ptr) | |
| 403 png_destroy_write_struct(&png_ptr, &info_ptr); | |
| 404 | |
| 405 return res; | |
| 406 } | |
| 407 | |
| 408 | |
| 409 int dmWritePNGImage(const char *filename, DMImage *img, DMImageSpec *spec) | |
| 410 { | |
| 411 int res; | |
| 412 FILE *fp; | |
| 413 | |
| 414 if ((fp = fopen(filename, "wb")) == NULL) | |
| 415 { | |
| 416 dmError("PNG: could not open file '%s' for writing.\n", filename); | |
| 417 return DMERR_FOPEN; | |
| 418 } | |
| 419 | |
| 420 res = dmWritePNGImageFILE(fp, img, spec); | |
| 421 | |
| 422 fclose(fp); | |
| 423 return res; | |
| 424 } | |
| 425 #endif | |
| 426 | |
| 427 | |
| 428 typedef struct | |
| 429 { | |
| 430 Uint8 r,g,b; | |
| 431 } DMPCXColor; | |
| 432 | |
| 433 | |
| 434 typedef struct | |
| 435 { | |
| 436 Uint8 manufacturer, | |
| 437 version, | |
| 438 encoding, | |
| 439 bpp; | |
| 440 Uint16 xmin, ymin, xmax, ymax; | |
| 441 Uint16 hres, vres; | |
| 442 DMPCXColor colormap[16]; | |
| 443 Uint8 reserved; | |
| 444 Uint8 nplanes; | |
| 445 Uint16 bpl; | |
| 446 Uint16 palinfo; | |
| 447 Uint8 filler[58]; | |
| 448 } DMPCXHeader; | |
| 449 | |
| 450 | |
| 451 typedef struct | |
| 452 { | |
| 453 DMPCXHeader *header; | |
| 454 Uint8 *buf; | |
| 455 size_t bufLen, bufOffs; | |
| 456 int format; | |
| 457 FILE *fp; | |
| 458 } DMPCXData; | |
| 459 | |
| 460 | |
| 461 static inline Uint8 dmPCXGetByte(Uint8 *row, const size_t len, const size_t soffs) | |
| 462 { | |
| 463 return (soffs < len) ? row[soffs] : 0; | |
| 464 } | |
| 465 | |
| 466 static BOOL dmPCXFlush(DMPCXData *pcx) | |
| 467 { | |
| 468 BOOL ret = TRUE; | |
| 469 if (pcx->bufOffs > 0) | |
| 470 ret = fwrite(pcx->buf, sizeof(Uint8), pcx->bufOffs, pcx->fp) == pcx->bufOffs; | |
| 471 pcx->bufOffs = 0; | |
| 472 return ret; | |
| 473 } | |
| 474 | |
| 475 static inline BOOL dmPCXPutByte(DMPCXData *pcx, const Uint8 val) | |
| 476 { | |
| 477 if (pcx->bufOffs < pcx->bufLen) | |
| 478 { | |
| 479 pcx->buf[pcx->bufOffs++] = val; | |
| 480 return TRUE; | |
| 481 } | |
| 482 else | |
| 483 return dmPCXFlush(pcx); | |
| 484 } | |
| 485 | |
| 486 static BOOL dmWritePCXRow(void *cbdata, Uint8 *row, size_t len) | |
| 487 { | |
| 488 DMPCXData *pcx = (DMPCXData *) cbdata; | |
| 489 int plane; | |
| 490 size_t soffs = 0; | |
| 491 | |
| 492 // fprintf(stderr, "%d, %d * %d = %d\n", len, pcx->header->bpl, pcx->header->nplanes, pcx->header->nplanes * pcx->header->bpl); | |
| 493 | |
| 494 pcx->bufOffs = 0; | |
| 495 | |
| 496 for (plane = 0; plane < pcx->header->nplanes; plane++) | |
| 497 { | |
| 498 Uint8 data = dmPCXGetByte(row, len, soffs++), | |
| 499 count = 1; | |
| 500 | |
| 501 // size_t blen = pcx->header->bpl * pcx->header->nplanes; | |
| 502 size_t blen = pcx->header->bpl; | |
| 503 while (soffs < blen) | |
| 504 { | |
| 505 if (data == dmPCXGetByte(row, len, soffs) && count < 63) | |
| 506 { | |
| 507 count++; | |
| 508 soffs++; | |
| 509 } | |
| 510 else | |
| 511 { | |
| 512 if (count == 1 && (data & 0xC0) != 0xC0) | |
| 513 { | |
| 514 if (!dmPCXPutByte(pcx, data)) | |
| 515 return FALSE; | |
| 516 } | |
| 517 else | |
| 518 { | |
| 519 if (!dmPCXPutByte(pcx, 0xC0 | count) || | |
| 520 !dmPCXPutByte(pcx, data)) | |
| 521 return FALSE; | |
| 522 } | |
| 523 | |
| 524 data = dmPCXGetByte(row, len, soffs++); | |
| 525 count = 1; | |
| 526 } | |
| 527 } | |
| 528 | |
| 529 if (count > 1) | |
| 530 { | |
| 531 if (!dmPCXPutByte(pcx, 0xC0 | count) || | |
| 532 !dmPCXPutByte(pcx, data)) | |
| 533 return FALSE; | |
| 534 } | |
| 535 | |
| 536 if (!dmPCXFlush(pcx)) | |
| 537 return FALSE; | |
| 538 } | |
| 539 | |
| 540 | |
| 541 return TRUE; | |
| 542 } | |
| 543 | |
| 544 | |
| 545 int dmWritePCXImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec) | |
| 546 { | |
| 547 DMPCXData pcx; | |
| 548 DMPCXHeader hdr; | |
| 549 int res; | |
| 550 | |
| 551 // Create output file | |
| 552 pcx.buf = NULL; | |
| 553 pcx.format = spec->paletted ? DM_IFMT_PALETTE : DM_IFMT_RGB_PLANE; | |
| 554 pcx.header = &hdr; | |
| 555 pcx.fp = fp; | |
| 556 | |
| 557 // Create PCX header | |
| 558 memset(&hdr, 0, sizeof(hdr)); | |
| 559 if (spec->paletted) | |
| 560 { | |
| 561 int i; | |
| 562 for (i = 0; i < (img->ncolors > 16 ? 16 : img->ncolors); i++) | |
| 563 { | |
| 564 hdr.colormap[i].r = img->pal[i].r; | |
| 565 hdr.colormap[i].g = img->pal[i].g; | |
| 566 hdr.colormap[i].b = img->pal[i].b; | |
| 567 } | |
| 568 } | |
| 569 hdr.manufacturer = 10; | |
| 570 hdr.version = 5; | |
| 571 hdr.encoding = 1; | |
| 572 hdr.bpp = 8; | |
| 573 hdr.hres = img->width * spec->scale; | |
| 574 hdr.vres = img->height * spec->scale; | |
| 575 hdr.xmin = hdr.ymin = 0; | |
| 576 hdr.xmax = hdr.hres - 1; | |
| 577 hdr.ymax = hdr.vres - 1; | |
| 578 hdr.nplanes = dmImageGetBytesPerPixel(pcx.format); | |
| 579 hdr.palinfo = 1; | |
| 580 | |
| 581 res = (img->width * spec->scale); | |
| 582 hdr.bpl = res / 2; | |
| 583 if (res % 2) hdr.bpl++; | |
| 584 hdr.bpl *= 2; | |
| 585 | |
| 586 dmMsg(2, "PCX: paletted=%d, nplanes=%d, bpp=%d, bpl=%d\n", | |
| 587 spec->paletted, hdr.nplanes, hdr.bpp, hdr.bpl); | |
| 588 | |
| 589 pcx.bufLen = hdr.bpl * 4; | |
| 590 if ((pcx.buf = dmMalloc(pcx.bufLen)) == NULL) | |
| 591 { | |
| 592 dmError("PCX: Could not allocate %d bytes for RLE compression buffer.\n", | |
| 593 pcx.bufLen); | |
| 594 res = DMERR_MALLOC; | |
| 595 goto error; | |
| 596 } | |
| 597 | |
| 598 // Write PCX header | |
| 599 if (!dm_fwrite_byte(pcx.fp, hdr.manufacturer) || | |
| 600 !dm_fwrite_byte(pcx.fp, hdr.version) || | |
| 601 !dm_fwrite_byte(pcx.fp, hdr.encoding) || | |
| 602 !dm_fwrite_byte(pcx.fp, hdr.bpp)) | |
| 603 { | |
| 604 dmError("PCX: Could not write basic header data.\n"); | |
| 605 res = DMERR_FWRITE; | |
| 606 goto error; | |
| 607 } | |
| 608 | |
| 609 if (!dm_fwrite_le16(pcx.fp, hdr.xmin) || | |
| 610 !dm_fwrite_le16(pcx.fp, hdr.ymin) || | |
| 611 !dm_fwrite_le16(pcx.fp, hdr.xmax) || | |
| 612 !dm_fwrite_le16(pcx.fp, hdr.ymax) || | |
| 613 !dm_fwrite_le16(pcx.fp, hdr.hres) || | |
| 614 !dm_fwrite_le16(pcx.fp, hdr.vres)) | |
| 615 { | |
| 616 dmError("PCX: Could not write image dimensions.\n"); | |
| 617 res = DMERR_FWRITE; | |
| 618 goto error; | |
| 619 } | |
| 620 | |
| 621 if (!dm_fwrite_str(pcx.fp, (Uint8 *) &hdr.colormap, sizeof(hdr.colormap))) | |
| 622 { | |
| 623 dmError("PCX: Could not write colormap.\n"); | |
| 624 res = DMERR_FWRITE; | |
| 625 goto error; | |
| 626 } | |
| 627 | |
| 628 if (!dm_fwrite_byte(pcx.fp, hdr.reserved) || | |
| 629 !dm_fwrite_byte(pcx.fp, hdr.nplanes) || | |
| 630 !dm_fwrite_le16(pcx.fp, hdr.bpl) || | |
| 631 !dm_fwrite_le16(pcx.fp, hdr.palinfo) || | |
| 632 !dm_fwrite_str(pcx.fp, (Uint8 *) &hdr.filler, sizeof(hdr.filler))) | |
| 633 { | |
| 634 dmError("PCX: Could not write header remainder.\n"); | |
| 635 res = DMERR_FWRITE; | |
| 636 goto error; | |
| 637 } | |
| 638 | |
| 639 // Write image data | |
| 640 res = dmWriteImageData(img, (void *) &pcx, dmWritePCXRow, spec); | |
| 641 | |
| 642 // Write VGA palette | |
| 643 if (spec->paletted) | |
| 644 { | |
| 645 int i; | |
| 646 dm_fwrite_byte(pcx.fp, 0x0C); | |
| 647 dmMsg(2, "PCX: Writing palette of %d active entries.\n", img->ncolors); | |
| 648 | |
| 649 for (i = 0; i < img->ncolors; i++) | |
| 650 { | |
| 651 dm_fwrite_byte(pcx.fp, img->pal[i].r); | |
| 652 dm_fwrite_byte(pcx.fp, img->pal[i].g); | |
| 653 dm_fwrite_byte(pcx.fp, img->pal[i].b); | |
| 654 } | |
| 655 | |
| 656 // Pad the palette, if necessary | |
| 657 for (; i < 256; i++) | |
| 658 { | |
| 659 dm_fwrite_byte(pcx.fp, 0); | |
| 660 dm_fwrite_byte(pcx.fp, 0); | |
| 661 dm_fwrite_byte(pcx.fp, 0); | |
| 662 } | |
| 663 } | |
| 664 | |
| 665 error: | |
| 666 dmFree(pcx.buf); | |
| 667 return res; | |
| 668 } | |
| 669 | |
| 670 | |
| 671 int dmWritePCXImage(const char *filename, DMImage *img, DMImageSpec *spec) | |
| 672 { | |
| 673 FILE *fp; | |
| 674 int res; | |
| 675 | |
| 676 if ((fp = fopen(filename, "wb")) == NULL) | |
| 677 { | |
| 678 dmError("PCX: Could not open file '%s' for writing.\n", filename); | |
| 679 return DMERR_FOPEN; | |
| 680 } | |
| 681 | |
| 682 res = dmWritePCXImageFILE(fp, img, spec); | |
| 683 | |
| 684 fclose(fp); | |
| 685 return res; | |
| 686 } | |
| 687 | |
| 688 | |
| 689 static BOOL dmPCXDecodeRLERow(FILE *fp, Uint8 *buf, const size_t bufLen) | |
| 690 { | |
| 691 size_t offs = 0; | |
| 692 do | |
| 693 { | |
| 694 int count; | |
| 695 Uint8 data; | |
| 696 | |
| 697 if (!dm_fread_byte(fp, &data)) | |
| 698 return FALSE; | |
| 699 | |
| 700 if ((data & 0xC0) == 0xC0) | |
| 701 { | |
| 702 count = data & 0x3F; | |
| 703 if (!dm_fread_byte(fp, &data)) | |
| 704 return FALSE; | |
| 705 } | |
| 706 else | |
| 707 count = 1; | |
| 708 | |
| 709 while (count-- && offs < bufLen) | |
| 710 buf[offs++] = data; | |
| 711 | |
| 712 } while (offs < bufLen); | |
| 713 | |
| 714 return TRUE; | |
| 715 } | |
| 716 | |
| 717 | |
| 718 int dmReadPCXImageFILE(FILE *fp, DMImage **pimg) | |
| 719 { | |
| 720 DMImage *img; | |
| 721 DMPCXData pcx; | |
| 722 DMPCXHeader hdr; | |
| 723 BOOL paletted; | |
| 724 int res = 0, yc, xc; | |
| 725 Uint8 *dp; | |
| 726 | |
| 727 pcx.buf = NULL; | |
| 728 | |
| 729 // Read PCX header | |
| 730 if (!dm_fread_byte(fp, &hdr.manufacturer) || | |
| 731 !dm_fread_byte(fp, &hdr.version) || | |
| 732 !dm_fread_byte(fp, &hdr.encoding) || | |
| 733 !dm_fread_byte(fp, &hdr.bpp)) | |
| 734 { | |
| 735 dmError("PCX: Could not read basic header data.\n"); | |
| 736 res = DMERR_FREAD; | |
| 737 goto error; | |
| 738 } | |
| 739 | |
| 740 if (hdr.manufacturer != 10 || | |
| 741 hdr.version != 5 || | |
| 742 hdr.encoding != 1 || | |
| 743 hdr.bpp != 8) | |
| 744 { | |
| 745 dmError("PCX: Not a PCX file, or unsupported variant.\n"); | |
| 746 res = DMERR_FREAD; | |
| 747 goto error; | |
| 748 } | |
| 749 | |
| 750 if (!dm_fread_le16(fp, &hdr.xmin) || | |
| 751 !dm_fread_le16(fp, &hdr.ymin) || | |
| 752 !dm_fread_le16(fp, &hdr.xmax) || | |
| 753 !dm_fread_le16(fp, &hdr.ymax) || | |
| 754 !dm_fread_le16(fp, &hdr.hres) || | |
| 755 !dm_fread_le16(fp, &hdr.vres)) | |
| 756 { | |
| 757 dmError("PCX: Could not read image dimensions.\n"); | |
| 758 res = DMERR_FREAD; | |
| 759 goto error; | |
| 760 } | |
| 761 | |
| 762 if (!dm_fread_str(fp, (Uint8 *) &hdr.colormap, sizeof(hdr.colormap))) | |
| 763 { | |
| 764 dmError("PCX: Could not read colormap.\n"); | |
| 765 res = DMERR_FREAD; | |
| 766 goto error; | |
| 767 } | |
| 768 | |
| 769 if (!dm_fread_byte(fp, &hdr.reserved) || | |
| 770 !dm_fread_byte(fp, &hdr.nplanes) || | |
| 771 !dm_fread_le16(fp, &hdr.bpl) || | |
| 772 !dm_fread_le16(fp, &hdr.palinfo) || | |
| 773 !dm_fread_str(fp, (Uint8 *) &hdr.filler, sizeof(hdr.filler))) | |
| 774 { | |
| 775 dmError("PCX: Could not read header remainder.\n"); | |
| 776 res = DMERR_FREAD; | |
| 777 goto error; | |
| 778 } | |
| 779 | |
| 780 if (hdr.nplanes != 3 && hdr.nplanes != 1) | |
| 781 { | |
| 782 dmError("PCX: Unsupported number of bitplanes %d.\n", hdr.nplanes); | |
| 783 res = DMERR_FREAD; | |
| 784 goto error; | |
| 785 } | |
| 786 | |
| 787 // Allocate image | |
| 788 if ((*pimg = img = dmImageAlloc(hdr.xmax - hdr.xmin + 1, hdr.ymax - hdr.ymin + 1)) == NULL) | |
| 789 { | |
| 790 dmError("PCX: Could not allocate image structure.\n"); | |
| 791 res = DMERR_MALLOC; | |
| 792 goto error; | |
| 793 } | |
| 794 | |
| 795 paletted = hdr.nplanes == 1; | |
| 796 pcx.bufLen = hdr.nplanes * hdr.bpl; | |
| 797 if ((pcx.buf = dmMalloc(pcx.bufLen)) == NULL) | |
| 798 { | |
| 799 dmError("PCX: Could not allocate RLE buffer.\n"); | |
| 800 res = DMERR_MALLOC; | |
| 801 goto error; | |
| 802 } | |
| 803 | |
| 804 // Read image data | |
| 805 dp = img->data; | |
| 806 for (yc = 0; yc < img->height; yc++) | |
| 807 { | |
| 808 // Decode row of RLE'd data | |
| 809 if (!dmPCXDecodeRLERow(fp, pcx.buf, pcx.bufLen)) | |
| 810 { | |
| 811 dmError("PCX: Error decoding RLE data.\n"); | |
| 812 res = DMERR_INVALID_DATA; | |
| 813 goto error; | |
| 814 } | |
| 815 | |
| 816 // Decode bitplanes | |
| 817 switch (hdr.nplanes) | |
| 818 { | |
| 819 case 1: | |
| 820 memcpy(dp, pcx.buf, img->width); | |
| 821 break; | |
| 822 | |
| 823 case 3: | |
| 824 { | |
| 825 Uint8 *dptr = dp, | |
| 826 *sptr1 = pcx.buf, | |
| 827 *sptr2 = sptr1 + hdr.bpl, | |
| 828 *sptr3 = sptr2 + hdr.bpl; | |
| 829 | |
| 830 for (xc = 0; xc < img->width; xc++) | |
| 831 { | |
| 832 *dptr++ = *sptr1++; | |
| 833 *dptr++ = *sptr2++; | |
| 834 *dptr++ = *sptr3++; | |
| 835 } | |
| 836 } | |
| 837 break; | |
| 838 } | |
| 839 | |
| 840 dp += img->pitch; | |
| 841 } | |
| 842 | |
| 843 // Read VGA palette | |
| 844 if (paletted) | |
| 845 { | |
| 846 int i; | |
| 847 Uint8 tmpb; | |
| 848 BOOL read; | |
| 849 | |
| 850 if (!dm_fread_byte(fp, &tmpb) || tmpb != 0x0C) | |
| 851 { | |
| 852 read = FALSE; | |
| 853 img->ncolors = 16; | |
| 854 } | |
| 855 else | |
| 856 { | |
| 857 read = TRUE; | |
| 858 img->ncolors = 256; | |
| 859 } | |
| 860 | |
| 861 if ((img->pal = dmCalloc(img->ncolors, sizeof(DMColor))) == NULL) | |
| 862 { | |
| 863 dmError("PCX: Could not allocate palette data!\n"); | |
| 864 res = DMERR_MALLOC; | |
| 865 goto error; | |
| 866 } | |
| 867 | |
| 868 if (read) | |
| 869 { | |
| 870 for (i = 0; i < img->ncolors; i++) | |
| 871 { | |
| 872 Uint8 tmpR, tmpG, tmpB; | |
| 873 if (!dm_fread_byte(fp, &tmpR) || | |
| 874 !dm_fread_byte(fp, &tmpG) || | |
| 875 !dm_fread_byte(fp, &tmpB)) | |
| 876 goto error; | |
| 877 | |
| 878 img->pal[i].r = tmpR; | |
| 879 img->pal[i].g = tmpG; | |
| 880 img->pal[i].b = tmpB; | |
| 881 } | |
| 882 } | |
| 883 else | |
| 884 { | |
| 885 for (i = 0; i < img->ncolors; i++) | |
| 886 { | |
| 887 if (i < 16) | |
| 888 { | |
| 889 img->pal[i].r = hdr.colormap[i].r; | |
| 890 img->pal[i].g = hdr.colormap[i].g; | |
| 891 img->pal[i].b = hdr.colormap[i].b; | |
| 892 } | |
| 893 } | |
| 894 } | |
| 895 | |
| 896 | |
| 897 } | |
| 898 | |
| 899 error: | |
| 900 dmFree(pcx.buf); | |
| 901 return res; | |
| 902 } | |
| 903 | |
| 904 | |
| 905 int dmReadPCXImage(const char *filename, DMImage **pimg) | |
| 906 { | |
| 907 FILE *fp; | |
| 908 int res; | |
| 909 | |
| 910 if ((fp = fopen(filename, "rb")) == NULL) | |
| 911 { | |
| 912 dmError("PCX: Could not open file '%s' for reading.\n", filename); | |
| 913 return -15; | |
| 914 } | |
| 915 | |
| 916 res = dmReadPCXImageFILE(fp, pimg); | |
| 917 | |
| 918 fclose(fp); | |
| 919 return res; | |
| 920 } | |
| 921 | |
| 922 | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
923 #define IFF_ID_FORM 0x464F524D // "FORM" |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
924 #define IFF_ID_ILBM 0x494C424D // "ILBM" |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
925 #define IFF_ID_BMHD 0x424D4844 // "BMHD" |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
926 #define IFF_ID_CMAP 0x434D4150 // "CMAP" |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
927 #define IFF_ID_BODY 0x424F4459 // "BODY" |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
928 #define IFF_ID_CAMG 0x43414D47 // "CAMG" |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
929 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
930 #define IFF_MASK_NONE 0 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
931 #define IFF_MASK_HAS_MASK 1 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
932 #define IFF_MASK_TRANSP 2 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
933 #define IFF_MASK_LASSO 3 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
934 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
935 #define IFF_COMP_NONE 0 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
936 #define IFF_COMP_BYTERUN1 1 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
937 |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
938 #define IFF_CAMG_LACE 0x00000004 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
939 #define IFF_CAMG_HALFBRITE 0x00000080 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
940 #define IFF_CAMG_HAM 0x00000800 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
941 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
942 typedef struct |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
943 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
944 Uint32 id; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
945 Uint32 size; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
946 int count; |
| 445 | 947 char str[6]; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
948 } DMIFFChunk; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
949 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
950 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
951 typedef struct |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
952 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
953 Uint16 w, h; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
954 Sint16 x, y; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
955 Uint8 nplanes; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
956 Uint8 masking; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
957 Uint8 compression; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
958 Uint8 pad1; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
959 Uint16 transp; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
960 Uint8 xasp, yasp; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
961 Sint16 pagew, pageh; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
962 } DMIFFBMHD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
963 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
964 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
965 typedef struct |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
966 { |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
967 DMIFFChunk chBMHD, chCMAP, chBODY; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
968 DMIFFBMHD bmhd; |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
969 Uint32 camg; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
970 int ncolors; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
971 DMColor *pal; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
972 BOOL paletted; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
973 } DMIFF; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
974 |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
975 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
976 static BOOL dmReadIFFChunk(FILE *fp, DMIFFChunk *chunk) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
977 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
978 if (!dm_fread_be32(fp, &chunk->id) || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
979 !dm_fread_be32(fp, &chunk->size)) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
980 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
981 dmError("ILBM: Could not read IFF chunk header.\n"); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
982 return FALSE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
983 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
984 else |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
985 return TRUE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
986 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
987 |
| 445 | 988 static char * dmGetIFFChunkID(DMIFFChunk *chunk) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
989 { |
| 445 | 990 chunk->str[0] = (chunk->id >> 24) & 0xff; |
| 991 chunk->str[1] = (chunk->id >> 16) & 0xff; | |
| 992 chunk->str[2] = (chunk->id >> 8) & 0xff; | |
| 993 chunk->str[3] = (chunk->id) & 0xff; | |
| 994 chunk->str[4] = 0; | |
| 995 return chunk->str; | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
996 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
997 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
998 static BOOL dmSkipIFFChunkRest(FILE *fp, const DMIFFChunk *chunk, const Uint32 used) |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
999 { |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1000 if (chunk->size > used) |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1001 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1002 dmMsg(3, "ILBM: Skipping %d bytes (%d of %d consumed)\n", |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1003 chunk->size - used, used, chunk->size); |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1004 return fseeko(fp, chunk->size - used, SEEK_CUR) == 0; |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1005 } |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1006 else |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1007 return TRUE; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1008 } |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1009 |
| 445 | 1010 static BOOL dmCheckIFFChunk(DMIFFChunk *dest, DMIFFChunk *chunk, |
| 1011 const BOOL multi, const Uint32 minSize) | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1012 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1013 if (dest->count > 0 && !multi) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1014 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1015 dmError("ILBM: Multiple instances of chunk %s found.\n", |
| 445 | 1016 dmGetIFFChunkID(chunk)); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1017 return FALSE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1018 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1019 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1020 dest->count++; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1021 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1022 if (chunk->size < minSize) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1023 return FALSE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1024 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1025 return TRUE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1026 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1027 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1028 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1029 static BOOL dmIFFDecodeByteRun1Row(FILE *fp, Uint8 *buf, const size_t bufLen) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1030 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1031 size_t offs = 0; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1032 do |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1033 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1034 Sint8 dcount; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1035 Uint8 data; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1036 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1037 if (!dm_fread_byte(fp, (Uint8 *) &dcount)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1038 return FALSE; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1039 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1040 if (dcount == -128) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1041 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1042 if (!dm_fread_byte(fp, &data)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1043 return FALSE; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1044 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1045 else |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1046 if (dcount < 0) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1047 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1048 int count = (-dcount) + 1; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1049 if (!dm_fread_byte(fp, &data)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1050 return FALSE; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1051 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1052 while (count-- && offs < bufLen) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1053 buf[offs++] = data; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1054 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1055 else |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1056 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1057 int count = dcount + 1; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1058 while (count-- && offs < bufLen) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1059 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1060 if (!dm_fread_byte(fp, &data)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1061 return FALSE; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1062 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1063 buf[offs++] = data; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1064 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1065 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1066 } while (offs < bufLen); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1067 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1068 return TRUE; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1069 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1070 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1071 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1072 static BOOL dmIFFReadOneRow(FILE *fp, DMIFF *iff, Uint8 *buf, const size_t bufLen) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1073 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1074 if (iff->bmhd.compression == IFF_COMP_BYTERUN1) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1075 return dmIFFDecodeByteRun1Row(fp, buf, bufLen); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1076 else |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1077 return dm_fread_str(fp, buf, bufLen); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1078 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1079 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1080 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1081 void dmDecodeBitPlane(Uint8 *dp, Uint8 *src, const int width, const int nplane) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1082 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1083 int xc; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
changeset
|
1084 for (xc = 0; xc < width; xc++) |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1085 { |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1086 const Uint8 data = (src[xc / 8] >> (7 - (xc & 7))) & 1; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1087 dp[xc] |= (data << nplane); |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1088 } |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
changeset
|
1089 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
changeset
|
1090 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1091 |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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changeset
|
1092 int dmDecodeILBMBody(FILE *fp, DMIFF *iff, DMImage **pimg, Uint32 *read) |
|
444
7d588807f91d
Clean up the IFF parser a bit.
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|
1093 { |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1094 DMImage *img; |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1095 Uint8 *buf; |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1096 size_t bufLen; |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1097 int yc, res = DMERR_OK; |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1098 |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1099 *read = 0; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1100 |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1101 // Allocate image |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1102 if ((*pimg = img = dmImageAlloc(iff->bmhd.w, iff->bmhd.h)) == NULL) |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1103 return DMERR_MALLOC; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1104 |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
changeset
|
1105 // Allocate planar decoding buffer |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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445
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|
1106 bufLen = ((img->width + 15) / 16) * 2; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
changeset
|
1107 if ((buf = dmMalloc(bufLen)) == NULL) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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parents:
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diff
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|
1108 return DMERR_MALLOC; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1109 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1110 dmMsg(2, "ILBM: plane row size %d bytes.\n", bufLen); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1111 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1112 // Decode the chunk |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1113 for (yc = 0; yc < img->height; yc++) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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parents:
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diff
changeset
|
1114 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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445
diff
changeset
|
1115 int plane; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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|
1116 const int nplanes = iff->bmhd.nplanes; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1117 Uint8 *dp = img->data + (yc * img->pitch); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1118 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1119 memset(dp, 0, img->pitch); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1120 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1121 for (plane = 0; plane < nplanes; plane++) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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445
diff
changeset
|
1122 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1123 // Decompress or read data |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1124 if (!dmIFFReadOneRow(fp, iff, buf, bufLen)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
1125 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
1126 dmError("ILBM: Error in reading image plane #%d.\n", plane); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
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|
1127 res = DMERR_FREAD; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
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|
1128 goto error; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1129 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1130 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1131 // Decode bitplane |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1132 dmDecodeBitPlane(dp, buf, img->width, plane); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1133 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1134 *read += bufLen; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1135 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1136 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1137 // Read mask data |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1138 if (iff->bmhd.masking == IFF_MASK_HAS_MASK) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1139 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1140 int xc; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1141 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1142 // Decompress or read data |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1143 if (!dmIFFReadOneRow(fp, iff, buf, bufLen)) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1144 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1145 dmError("ILBM: Error in reading mask plane.\n"); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1146 res = DMERR_FREAD; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1147 goto error; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1148 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1149 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1150 // Decode mask |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1151 for (xc = 0; xc < img->width; xc++) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1152 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1153 const Uint8 data = (buf[xc / 8] >> (7 - (xc & 7))) & 1; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1154 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1155 // Black out any pixels with mask bit 0 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1156 if (!data) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1157 dp[xc] = 0; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1158 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1159 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1160 *read += bufLen; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1161 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1162 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1163 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1164 error: |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1165 dmFree(buf); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1166 return res; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1167 } |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1168 |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1169 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1170 int dmReadILBMImageFILE(FILE *fp, DMImage **pimg) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1171 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1172 Uint32 idILBM; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1173 DMIFFChunk chunk; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1174 DMIFF iff; |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1175 Uint32 read; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1176 BOOL parsed = FALSE; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1177 int i, res = DMERR_OK; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1178 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1179 memset(&iff, 0, sizeof(iff)); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1180 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1181 // Read IFF FORM header |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1182 if (!dmReadIFFChunk(fp, &chunk) || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1183 chunk.id != IFF_ID_FORM || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1184 chunk.size < 32) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1185 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1186 dmError("ILBM: Not a IFF file.\n"); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1187 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1188 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1189 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1190 // Check IFF ILBM signature |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1191 if (!dm_fread_be32(fp, &idILBM) || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1192 idILBM != IFF_ID_ILBM) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1193 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1194 dmError("ILBM: Not a ILBM file.\n"); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1195 return DMERR_INVALID_DATA; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1196 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1197 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1198 while (!parsed && !feof(fp)) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1199 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1200 if (!dmReadIFFChunk(fp, &chunk)) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1201 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1202 dmError("ILBM: Error reading IFF ILBM data.\n"); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1203 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1204 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1205 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1206 switch (chunk.id) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1207 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1208 case IFF_ID_BMHD: |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1209 // Check for multiple occurences of BMHD |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1210 if (!dmCheckIFFChunk(&iff.chBMHD, &chunk, FALSE, sizeof(iff.bmhd))) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1211 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1212 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1213 // Read BMHD data |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1214 if (!dm_fread_be16(fp, &iff.bmhd.w) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1215 !dm_fread_be16(fp, &iff.bmhd.h) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1216 !dm_fread_be16(fp, (Uint16 *) &iff.bmhd.x) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1217 !dm_fread_be16(fp, (Uint16 *) &iff.bmhd.y) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1218 !dm_fread_byte(fp, &iff.bmhd.nplanes) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1219 !dm_fread_byte(fp, &iff.bmhd.masking) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1220 !dm_fread_byte(fp, &iff.bmhd.compression) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1221 !dm_fread_byte(fp, &iff.bmhd.pad1) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1222 !dm_fread_be16(fp, &iff.bmhd.transp) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1223 !dm_fread_byte(fp, &iff.bmhd.xasp) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1224 !dm_fread_byte(fp, &iff.bmhd.yasp) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1225 !dm_fread_be16(fp, (Uint16 *) &iff.bmhd.pagew) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1226 !dm_fread_be16(fp, (Uint16 *) &iff.bmhd.pageh)) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1227 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1228 dmError("ILBM: Error reading BMHD chunk.\n"); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1229 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1230 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1231 dmMsg(2, "ILBM: BMHD %d x %d @ %d, %d : nplanes=%d, comp=%d, mask=%d\n", |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1232 iff.bmhd.w, iff.bmhd.h, iff.bmhd.x, iff.bmhd.y, |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1233 iff.bmhd.nplanes, iff.bmhd.compression, iff.bmhd.masking); |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1234 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1235 // Sanity check |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1236 if (iff.bmhd.nplanes < 1 || iff.bmhd.nplanes > 8 || |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1237 (iff.bmhd.compression != IFF_COMP_NONE && |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1238 iff.bmhd.compression != IFF_COMP_BYTERUN1) || |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1239 (iff.bmhd.masking != IFF_MASK_NONE && |
|
448
f1aab48a76fe
Add transp mask support to IFF ILBM loader.
Matti Hamalainen <ccr@tnsp.org>
parents:
447
diff
changeset
|
1240 iff.bmhd.masking != IFF_MASK_HAS_MASK && |
|
f1aab48a76fe
Add transp mask support to IFF ILBM loader.
Matti Hamalainen <ccr@tnsp.org>
parents:
447
diff
changeset
|
1241 iff.bmhd.masking != IFF_MASK_TRANSP)) |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1242 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1243 dmError("ILBM: Unsupported features, refusing to load.\n"); |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1244 return DMERR_INVALID_DATA; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1245 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1246 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1247 if (!dmSkipIFFChunkRest(fp, &chunk, sizeof(iff.bmhd))) |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1248 return DMERR_FREAD; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1249 break; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1250 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1251 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1252 case IFF_ID_CMAP: |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1253 // Check for multiple occurences of CMAP |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1254 if (!dmCheckIFFChunk(&iff.chCMAP, &chunk, FALSE, 3)) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1255 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1256 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1257 // Check for sanity |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1258 if (chunk.size % 3 != 0) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1259 dmError("ILBM: CMAP chunk size not divisible by 3, possibly broken file.\n"); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1260 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1261 iff.ncolors = chunk.size / 3; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1262 dmMsg(2, "ILBM: CMAP %d entries (%d bytes)\n", |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1263 iff.ncolors, chunk.size, 1 << iff.bmhd.nplanes); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1264 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1265 if (iff.bmhd.nplanes > 0 && iff.ncolors != 1 << iff.bmhd.nplanes) |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1266 dmMsg(2, "ILBM: Expected %d entries in CMAP.\n", 1 << iff.bmhd.nplanes); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1267 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1268 if (iff.ncolors == 0) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1269 break; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1270 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1271 // Allocate palette |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1272 if ((iff.pal = dmMalloc(sizeof(DMColor) * iff.ncolors)) == NULL) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1273 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1274 dmError("ILBM: Could not allocate memory for palette.\n"); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1275 return DMERR_MALLOC; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1276 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1277 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1278 // Read palette |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1279 for (i = 0; i < iff.ncolors; i++) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1280 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1281 Uint8 colR, colG, colB; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1282 if (!dm_fread_byte(fp, &colR) || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1283 !dm_fread_byte(fp, &colG) || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1284 !dm_fread_byte(fp, &colB)) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1285 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1286 dmError("ILBM: Error reading CMAP entry #%d, broken file.\n", i); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1287 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1288 } |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1289 |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1290 iff.pal[i].r = colR; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1291 iff.pal[i].g = colG; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1292 iff.pal[i].b = colB; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1293 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1294 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1295 if (iff.chBMHD.count && iff.chBODY.count) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1296 parsed = TRUE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1297 break; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1298 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1299 case IFF_ID_BODY: |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1300 // Check for multiple occurences of CMAP |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1301 if (!dmCheckIFFChunk(&iff.chBODY, &chunk, FALSE, 1)) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1302 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1303 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1304 // Check for sanity |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1305 if (!iff.chBMHD.count) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1306 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1307 dmError("ILBM: BODY chunk before BMHD?\n"); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1308 return DMERR_INVALID_DATA; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1309 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1310 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1311 dmMsg(2, "ILBM: BODY chunk size %d bytes\n", chunk.size); |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1312 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1313 // Decode the body |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1314 if ((res = dmDecodeILBMBody(fp, &iff, pimg, &read)) != DMERR_OK) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1315 return res; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1316 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1317 if (!dmSkipIFFChunkRest(fp, &chunk, read)) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1318 return DMERR_FREAD; |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1319 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1320 if (iff.chCMAP.count) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1321 parsed = TRUE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1322 break; |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1323 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1324 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1325 case IFF_ID_CAMG: |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1326 if (!dm_fread_be32(fp, &iff.camg)) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1327 { |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1328 dmError("ILBM: Error reading CAMG chunk.\n"); |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1329 return DMERR_FREAD; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1330 } |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1331 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1332 dmMsg(2, "ILBM: CAMG value 0x%08x\n", iff.camg); |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1333 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1334 if ((iff.camg & IFF_CAMG_HAM)) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1335 { |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1336 dmError("ILBM: HAM files are not supported.\n"); |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1337 return DMERR_INVALID_DATA; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1338 } |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1339 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1340 if (!dmSkipIFFChunkRest(fp, &chunk, 4)) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1341 return DMERR_FREAD; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1342 break; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1343 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1344 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1345 default: |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1346 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1347 dmMsg(3, "Unknown chunk ID '%s', size %d\n", |
| 445 | 1348 dmGetIFFChunkID(&chunk), chunk.size); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1349 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1350 if (fseeko(fp, chunk.size, SEEK_CUR) != 0) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1351 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1352 dmError("ILBM: Error skipping in file."); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1353 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1354 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1355 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1356 break; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1357 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1358 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1359 if (chunk.size & 1) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1360 fgetc(fp); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1361 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1362 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1363 // Set colormap after finishing |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1364 if (iff.pal != NULL && iff.ncolors > 0 && *pimg != NULL) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1365 { |
|
449
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1366 // If halfbrite is used, duplicate the palette |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1367 if (iff.camg & IFF_CAMG_HALFBRITE) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1368 { |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1369 if (iff.ncolors > 128) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1370 { |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1371 dmError("ILBM: Halfbrite enabled, but ncolors > 128.\n"); |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1372 return DMERR_INVALID_DATA; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1373 } |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1374 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1375 if ((iff.pal = dmRealloc(iff.pal, sizeof(DMColor) * iff.ncolors * 2)) == NULL) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1376 return DMERR_MALLOC; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1377 |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1378 for (i = 0; i < iff.ncolors; i++) |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1379 { |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1380 int i2 = iff.ncolors + i; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1381 iff.pal[i2].r = iff.pal[i].r / 2; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1382 iff.pal[i2].g = iff.pal[i].g / 2; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1383 iff.pal[i2].b = iff.pal[i].b / 2; |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1384 } |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1385 } |
|
117f94b253af
Add support for CAMG chunk reading and possibly half-brite handling in IFF ILBM reader.
Matti Hamalainen <ccr@tnsp.org>
parents:
448
diff
changeset
|
1386 |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1387 (*pimg)->ncolors = iff.ncolors; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1388 (*pimg)->pal = iff.pal; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1389 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1390 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1391 return res; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1392 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1393 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1394 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1395 int dmReadILBMImage(const char *filename, DMImage **pimg) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1396 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1397 FILE *fp; |
|
f7c9d1619c74
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|
1398 int res; |
|
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|
1399 |
|
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diff
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|
1400 if ((fp = fopen(filename, "rb")) == NULL) |
|
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|
1401 { |
|
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diff
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|
1402 dmError("ILBM: Could not open file '%s' for reading.\n", filename); |
|
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|
1403 return DMERR_FOPEN; |
|
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|
1404 } |
|
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|
1405 |
|
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|
1406 res = dmReadILBMImageFILE(fp, pimg); |
|
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|
1407 |
|
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|
1408 fclose(fp); |
|
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Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
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|
1409 return res; |
|
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|
1410 } |
|
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|
1411 |
|
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|
1412 |
|
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|
1413 |
|
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|
1414 |
| 435 | 1415 static int fmtProbePNG(const Uint8 *buf, const size_t len) |
| 1416 { | |
| 1417 if (len > 64 && buf[0] == 0x89 && | |
| 1418 buf[1] == 'P' && buf[2] == 'N' && buf[3] == 'G' && | |
| 1419 buf[4] == 0x0d && buf[5] == 0x0a) | |
|
443
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|
1420 { |
|
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1421 if (buf[12] == 'I' && buf[13] == 'H' && |
|
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|
1422 buf[14] == 'D' && buf[15] == 'R') |
|
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1423 return DM_PROBE_SCORE_MAX; |
|
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|
1424 else |
|
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1425 return DM_PROBE_SCORE_GOOD; |
|
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|
1426 } |
| 435 | 1427 |
| 1428 return DM_PROBE_SCORE_FALSE; | |
| 1429 } | |
| 1430 | |
| 1431 | |
| 1432 static int fmtProbePCX(const Uint8 *buf, const size_t len) | |
| 1433 { | |
|
443
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|
1434 if (len > 128 + 32 && |
| 435 | 1435 buf[0] == 10 && |
|
443
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|
1436 (buf[1] == 5 || buf[1] == 2 || buf[1] == 3) && |
| 435 | 1437 buf[2] == 1 && |
|
443
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|
1438 (buf[3] == 8 || buf[3] == 4 || buf[3] == 3 || buf[3] == 1) && |
|
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|
1439 buf[65] >= 1 && buf[65] <= 4) |
| 435 | 1440 return DM_PROBE_SCORE_GOOD; |
| 1441 | |
| 1442 return DM_PROBE_SCORE_FALSE; | |
| 1443 } | |
| 1444 | |
| 1445 | |
|
443
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|
1446 static int fmtProbeILBM(const Uint8 *buf, const size_t len) |
|
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|
1447 { |
|
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|
1448 if (len > 32 && |
|
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|
1449 buf[ 0] == 'F' && buf[ 1] == 'O' && |
|
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1450 buf[ 2] == 'R' && buf[ 3] == 'M' && |
|
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|
1451 buf[ 8] == 'I' && buf[ 9] == 'L' && |
|
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|
1452 buf[10] == 'B' && buf[11] == 'M') |
|
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|
1453 { |
|
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|
1454 if (buf[12] == 'B' && buf[13] == 'M' && |
|
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|
1455 buf[14] == 'H' && buf[15] == 'D') |
|
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|
1456 return DM_PROBE_SCORE_MAX; |
|
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|
1457 else |
|
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|
1458 return DM_PROBE_SCORE_GOOD; |
|
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|
1459 } |
|
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|
1460 |
|
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|
1461 return DM_PROBE_SCORE_FALSE; |
|
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|
1462 } |
|
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|
1463 |
|
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|
1464 |
| 435 | 1465 DMImageFormat dmImageFormatList[IMGFMT_LAST] = |
| 1466 { | |
| 1467 { | |
| 1468 "PNG", "Portable Network Graphics", | |
| 1469 fmtProbePNG, | |
| 1470 NULL, NULL, | |
| 1471 #ifdef DM_USE_LIBPNG | |
| 1472 dmWritePNGImage, dmWritePNGImageFILE, | |
| 1473 #else | |
| 1474 NULL, NULL, | |
| 1475 #endif | |
| 1476 }, | |
| 1477 { | |
| 1478 "PPM", "Portable PixMap", | |
| 1479 NULL, | |
| 1480 NULL, NULL, | |
| 1481 dmWritePPMImage, dmWritePPMImageFILE, | |
| 1482 }, | |
| 1483 { | |
| 1484 "PCX", "Z-Soft Paintbrush", | |
| 1485 fmtProbePCX, | |
| 1486 dmReadPCXImage, dmReadPCXImageFILE, | |
| 1487 dmWritePCXImage, dmWritePCXImageFILE, | |
| 1488 }, | |
| 1489 { | |
|
443
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diff
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|
1490 "ILBM", "IFF ILBM", |
|
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|
1491 fmtProbeILBM, |
|
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|
1492 dmReadILBMImage, dmReadILBMImageFILE, |
|
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Matti Hamalainen <ccr@tnsp.org>
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|
1493 NULL, NULL, |
|
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|
1494 }, |
|
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diff
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|
1495 { |
| 435 | 1496 "ARAW", "IFFMaster Amiga RAW", |
| 1497 NULL, | |
| 1498 NULL, NULL, | |
| 1499 dmWriteIFFMasterRAWImage, dmWriteIFFMasterRAWImageFILE, | |
| 1500 } | |
| 1501 }; | |
| 1502 | |
| 1503 | |
| 1504 int dmImageProbeGeneric(const Uint8 *buf, const size_t len, DMImageFormat **pfmt, int *index) | |
| 1505 { | |
| 1506 int i, scoreMax = DM_PROBE_SCORE_FALSE, scoreIndex = -1; | |
| 1507 | |
| 1508 for (i = 0; i < IMGFMT_LAST; i++) | |
| 1509 { | |
| 1510 DMImageFormat *fmt = &dmImageFormatList[i]; | |
|
442
a67600e186d0
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diff
changeset
|
1511 if (fmt->probe != NULL) |
| 435 | 1512 { |
|
442
a67600e186d0
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diff
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|
1513 int score = fmt->probe(buf, len); |
|
a67600e186d0
Fix probing to handle NULL probe functions.
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diff
changeset
|
1514 if (score > scoreMax) |
|
a67600e186d0
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diff
changeset
|
1515 { |
|
a67600e186d0
Fix probing to handle NULL probe functions.
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diff
changeset
|
1516 scoreMax = score; |
|
a67600e186d0
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|
1517 scoreIndex = i; |
|
a67600e186d0
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|
1518 } |
| 435 | 1519 } |
| 1520 } | |
| 1521 | |
| 1522 if (scoreIndex >= 0) | |
| 1523 { | |
| 1524 *pfmt = &dmImageFormatList[scoreIndex]; | |
| 1525 *index = scoreIndex; | |
| 1526 return scoreMax; | |
| 1527 } | |
| 1528 else | |
| 1529 return DM_PROBE_SCORE_FALSE; | |
| 1530 } |