Mercurial > hg > dmlib
annotate libgfx.c @ 451:fdc91f2a0d27
Modularize palette reading and handling code.
| author | Matti Hamalainen <ccr@tnsp.org> |
|---|---|
| date | Sun, 04 Nov 2012 12:06:26 +0200 |
| parents | 117f94b253af |
| children | d1f7ddc84c7c |
| 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 | |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
51 BOOL dmPaletteAlloc(DMColor **ppal, int ncolors) |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
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52 { |
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fdc91f2a0d27
Modularize palette reading and handling code.
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parents:
449
diff
changeset
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53 if (ppal == NULL) |
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fdc91f2a0d27
Modularize palette reading and handling code.
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parents:
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diff
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54 return FALSE; |
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parents:
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55 |
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parents:
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56 return (*ppal = dmCalloc(ncolors, sizeof(DMColor))) != NULL; |
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parents:
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57 } |
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parents:
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58 |
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Modularize palette reading and handling code.
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parents:
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59 |
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parents:
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60 BOOL dmImageAllocPalette(DMImage *img, int ncolors) |
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parents:
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61 { |
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62 if (img == NULL) |
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parents:
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63 return FALSE; |
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64 |
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65 img->ncolors = ncolors; |
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66 return dmPaletteAlloc(&(img->pal), ncolors); |
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67 } |
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68 |
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69 |
| 435 | 70 int dmImageGetBytesPerPixel(int format) |
| 71 { | |
| 72 switch (format) | |
| 73 { | |
| 74 case DM_IFMT_PALETTE : return 1; | |
| 75 | |
| 76 case DM_IFMT_RGB_PLANE : | |
| 77 case DM_IFMT_RGB : return 3; | |
| 78 | |
| 79 case DM_IFMT_RGBA : return 4; | |
| 80 | |
| 81 default: return 0; | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 | |
|
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parents:
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86 static BOOL dmReadPaletteData(FILE *fp, DMColor *pal, int ncolors) |
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87 { |
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88 int i; |
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89 |
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90 for (i = 0; i < ncolors; i++) |
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fdc91f2a0d27
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parents:
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91 { |
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92 Uint8 colR, colG, colB; |
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93 if (!dm_fread_byte(fp, &colR) || |
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94 !dm_fread_byte(fp, &colG) || |
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95 !dm_fread_byte(fp, &colB)) |
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fdc91f2a0d27
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parents:
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96 return FALSE; |
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fdc91f2a0d27
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parents:
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97 |
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98 pal[i].r = colR; |
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fdc91f2a0d27
Modularize palette reading and handling code.
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parents:
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99 pal[i].g = colG; |
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parents:
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100 pal[i].b = colB; |
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101 } |
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102 |
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103 return TRUE; |
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parents:
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104 } |
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105 |
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106 |
| 435 | 107 int dmWriteImageData(DMImage *img, void *cbdata, BOOL (*writeRowCB)(void *, Uint8 *, size_t), const DMImageSpec *spec) |
| 108 { | |
| 109 int x, y, yscale, xscale, res = 0, rowSize, rowWidth; | |
| 110 Uint8 *row = NULL; | |
| 111 | |
| 112 // Allocate memory for row buffer | |
| 113 rowWidth = img->width * spec->scale; | |
| 114 rowSize = rowWidth * dmImageGetBytesPerPixel(spec->format); | |
| 115 | |
| 116 if ((row = dmMalloc(rowSize + 16)) == NULL) | |
| 117 { | |
| 118 res = DMERR_MALLOC; | |
| 119 goto done; | |
| 120 } | |
| 121 | |
| 122 // Generate the image | |
| 123 for (y = 0; y < img->height; y++) | |
| 124 { | |
|
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125 Uint8 *ptr1 = row, |
| 435 | 126 *ptr2 = ptr1 + rowWidth, |
| 127 *ptr3 = ptr2 + rowWidth; | |
| 128 | |
| 129 for (x = 0; x < img->width; x++) | |
| 130 { | |
| 131 Uint8 c = img->data[(y * img->pitch) + x], qr, qg, qb, qa; | |
| 132 switch (spec->format) | |
| 133 { | |
| 134 case DM_IFMT_PALETTE: | |
| 135 for (xscale = 0; xscale < spec->scale; xscale++) | |
|
436
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136 *ptr1++ = c; |
| 435 | 137 break; |
| 138 | |
| 139 case DM_IFMT_RGBA: | |
| 140 qr = img->pal[c].r; | |
| 141 qg = img->pal[c].g; | |
| 142 qb = img->pal[c].b; | |
| 143 qa = (c == img->ctrans) ? 0 : 255; | |
| 144 | |
| 145 for (xscale = 0; xscale < spec->scale; xscale++) | |
| 146 { | |
|
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parents:
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147 *ptr1++ = qr; |
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148 *ptr1++ = qg; |
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parents:
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149 *ptr1++ = qb; |
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parents:
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diff
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150 *ptr1++ = qa; |
| 435 | 151 } |
| 152 break; | |
| 153 | |
| 154 case DM_IFMT_RGB: | |
| 155 qr = img->pal[c].r; | |
| 156 qg = img->pal[c].g; | |
| 157 qb = img->pal[c].b; | |
| 158 | |
| 159 for (xscale = 0; xscale < spec->scale; xscale++) | |
| 160 { | |
|
436
86f956e4580f
Cosmetics, rename a variable.
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parents:
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diff
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161 *ptr1++ = qr; |
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Cosmetics, rename a variable.
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parents:
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diff
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162 *ptr1++ = qg; |
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parents:
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diff
changeset
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163 *ptr1++ = qb; |
| 435 | 164 } |
| 165 break; | |
| 166 | |
| 167 case DM_IFMT_RGB_PLANE: | |
| 168 qr = img->pal[c].r; | |
| 169 qg = img->pal[c].g; | |
| 170 qb = img->pal[c].b; | |
| 171 | |
| 172 for (xscale = 0; xscale < spec->scale; xscale++) | |
| 173 { | |
| 174 *ptr1++ = qr; | |
| 175 *ptr2++ = qg; | |
| 176 *ptr3++ = qb; | |
| 177 } | |
| 178 break; | |
| 179 } | |
| 180 } | |
| 181 | |
| 182 for (yscale = 0; yscale < spec->scale; yscale++) | |
| 183 { | |
| 184 if (!writeRowCB(cbdata, row, rowSize)) | |
| 185 { | |
| 186 res = DMERR_FWRITE; | |
| 187 goto done; | |
| 188 } | |
| 189 } | |
| 190 } | |
| 191 | |
| 192 done: | |
| 193 dmFree(row); | |
| 194 return res; | |
| 195 } | |
| 196 | |
| 197 | |
| 198 #define DMCOL(x) (((x) >> 4) & 0xf) | |
| 199 | |
| 200 int dmWriteIFFMasterRAWPalette(const char *filename, DMImage *img, int ncolors) | |
| 201 { | |
| 202 FILE *fp; | |
| 203 int i; | |
| 204 | |
| 205 if ((fp = fopen(filename, "w")) == NULL) | |
| 206 { | |
| 207 dmError("IFFMasterRAW: Could not open file '%s' for writing.\n", filename); | |
| 208 return -15; | |
| 209 } | |
| 210 | |
| 211 for (i = 0; i < ncolors; i++) | |
| 212 { | |
| 213 int color; | |
| 214 if (i < img->ncolors) | |
| 215 { | |
| 216 color = (DMCOL(img->pal[i].r) << 8) | | |
| 217 (DMCOL(img->pal[i].g) << 4) | | |
| 218 (DMCOL(img->pal[i].b)); | |
| 219 } | |
| 220 else | |
| 221 color = 0; | |
| 222 | |
| 223 fprintf(fp, "\tdc.w $%04X\n", color); | |
| 224 } | |
| 225 | |
|
440
b4ed5292d7bf
Close the file after writing.
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diff
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226 fclose(fp); |
| 435 | 227 return 0; |
| 228 } | |
| 229 | |
| 230 | |
| 231 int dmWriteIFFMasterRAWImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec) | |
| 232 { | |
| 233 int xc, yc, plane, res; | |
| 234 DMBitStream bs; | |
| 235 | |
| 236 if ((res = dmInitBitStream(&bs, fp)) != DMERR_OK) | |
| 237 return res; | |
| 238 | |
| 239 if (spec->interleave) | |
| 240 { | |
| 241 // Output bitplanes in interleaved format (each plane of line sequentially) | |
| 242 for (yc = 0; yc < img->height; yc++) | |
| 243 { | |
| 244 for (plane = 0; plane < spec->nplanes; plane++) | |
| 245 { | |
| 246 Uint8 *sp = img->data + yc * img->pitch; | |
| 247 for (xc = 0; xc < img->width; xc++) | |
| 248 { | |
| 249 if (!dmPutBits(&bs, (sp[xc] & (1 << plane)) ? 1 : 0, 1)) | |
| 250 return DMERR_FWRITE; | |
| 251 } | |
| 252 } | |
| 253 } | |
| 254 } | |
| 255 else | |
| 256 { | |
| 257 // Output each bitplane in sequence | |
| 258 for (plane = 0; plane < spec->nplanes; plane++) | |
| 259 { | |
| 260 for (yc = 0; yc < img->height; yc++) | |
| 261 { | |
| 262 Uint8 *sp = img->data + yc * img->pitch; | |
| 263 for (xc = 0; xc < img->width; xc++) | |
| 264 { | |
| 265 if (!dmPutBits(&bs, (sp[xc] & (1 << plane)) ? 1 : 0, 1)) | |
| 266 return DMERR_FWRITE; | |
| 267 } | |
| 268 } | |
| 269 } | |
| 270 } | |
| 271 | |
| 272 return dmFlushBitStream(&bs); | |
| 273 } | |
| 274 | |
| 275 int dmWriteIFFMasterRAWImage(const char *filename, DMImage *img, DMImageSpec *spec) | |
| 276 { | |
| 277 FILE *fp; | |
| 278 int res; | |
| 279 | |
| 280 if ((fp = fopen(filename, "wb")) == NULL) | |
| 281 { | |
| 282 dmError("IFFMasterRAW: Could not open file '%s' for writing.\n", filename); | |
| 283 return DMERR_FOPEN; | |
| 284 } | |
| 285 | |
| 286 res = dmWriteIFFMasterRAWImageFILE(fp, img, spec); | |
| 287 | |
| 288 fclose(fp); | |
| 289 return res; | |
| 290 } | |
| 291 | |
| 292 | |
| 293 static BOOL dmWritePPMRow(void *cbdata, Uint8 *row, size_t len) | |
| 294 { | |
| 295 return fwrite(row, sizeof(Uint8), len, (FILE *) cbdata) == len; | |
| 296 } | |
| 297 | |
| 298 | |
| 299 int dmWritePPMImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec) | |
| 300 { | |
| 301 // Write PPM header | |
| 302 fprintf(fp, | |
| 303 "P6\n%d %d\n255\n", | |
| 304 img->width * spec->scale, | |
| 305 img->height * spec->scale); | |
| 306 | |
| 307 // Write image data | |
| 308 spec->format = DM_IFMT_RGB; | |
| 309 return dmWriteImageData(img, (void *) fp, dmWritePPMRow, spec); | |
| 310 } | |
| 311 | |
| 312 | |
| 313 int dmWritePPMImage(const char *filename, DMImage *img, DMImageSpec *spec) | |
| 314 { | |
| 315 FILE *fp; | |
| 316 int res; | |
| 317 | |
| 318 // Create output file | |
| 319 if ((fp = fopen(filename, "wb")) == NULL) | |
| 320 { | |
| 321 dmError("PPM: could not open file '%s' for writing.\n", filename); | |
| 322 return DMERR_FOPEN; | |
| 323 } | |
| 324 | |
| 325 res = dmWritePPMImageFILE(fp, img, spec); | |
| 326 | |
| 327 fclose(fp); | |
| 328 return res; | |
| 329 } | |
| 330 | |
| 331 | |
| 332 #ifdef DM_USE_LIBPNG | |
| 333 static BOOL dmWritePNGRow(void *cbdata, Uint8 *row, size_t len) | |
| 334 { | |
| 335 png_structp png_ptr = cbdata; | |
| 336 (void) len; | |
| 337 | |
| 338 if (setjmp(png_jmpbuf(png_ptr))) | |
| 339 return FALSE; | |
| 340 | |
| 341 png_write_row(png_ptr, row); | |
| 342 | |
| 343 return TRUE; | |
| 344 } | |
| 345 | |
| 346 | |
| 347 int dmWritePNGImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec) | |
| 348 { | |
| 349 png_structp png_ptr = NULL; | |
| 350 png_infop info_ptr = NULL; | |
| 351 png_colorp palette = NULL; | |
| 352 int fmt, res = DMERR_OK; | |
| 353 | |
| 354 // Create PNG structures | |
| 355 png_ptr = png_create_write_struct( | |
| 356 PNG_LIBPNG_VER_STRING, | |
| 357 NULL, NULL, NULL); | |
| 358 | |
| 359 if (png_ptr == NULL) | |
| 360 { | |
| 361 dmError("PNG: png_create_write_struct() failed.\n"); | |
| 362 res = DMERR_MALLOC; | |
| 363 goto error; | |
| 364 } | |
| 365 | |
| 366 info_ptr = png_create_info_struct(png_ptr); | |
| 367 if (info_ptr == NULL) | |
| 368 { | |
| 369 dmError("PNG: png_create_info_struct(%p) failed.\n", png_ptr); | |
| 370 res = DMERR_INIT_FAIL; | |
| 371 goto error; | |
| 372 } | |
| 373 | |
| 374 if (setjmp(png_jmpbuf(png_ptr))) | |
| 375 { | |
| 376 dmError("PNG: Error during image writing..\n"); | |
| 377 res = DMERR_INIT_FAIL; | |
| 378 goto error; | |
| 379 } | |
| 380 | |
| 381 png_init_io(png_ptr, fp); | |
| 382 | |
| 383 // Write PNG header info | |
| 384 switch (spec->format) | |
| 385 { | |
| 386 case DM_IFMT_PALETTE: fmt = PNG_COLOR_TYPE_PALETTE; break; | |
| 387 case DM_IFMT_RGB : fmt = PNG_COLOR_TYPE_RGB; break; | |
| 388 case DM_IFMT_RGBA : fmt = PNG_COLOR_TYPE_RGB_ALPHA; break; | |
| 389 default: | |
| 390 dmError("PNG: Internal error, unsupported image format %d.\n", spec->format); | |
| 391 goto error; | |
| 392 } | |
| 393 | |
| 394 png_set_IHDR(png_ptr, info_ptr, | |
| 395 img->width * spec->scale, | |
| 396 img->height * spec->scale, | |
| 397 8, /* bits per component */ | |
| 398 fmt, | |
| 399 PNG_INTERLACE_NONE, | |
| 400 PNG_COMPRESSION_TYPE_DEFAULT, | |
| 401 PNG_FILTER_TYPE_DEFAULT); | |
| 402 | |
| 403 // Palette | |
| 404 if (spec->format == DM_IFMT_PALETTE) | |
| 405 { | |
| 406 int i; | |
| 407 | |
| 408 palette = png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH * sizeof(png_color)); | |
| 409 if (palette == NULL) | |
| 410 { | |
| 411 dmError("PNG: Could not allocate palette structure."); | |
| 412 goto error; | |
| 413 } | |
| 414 | |
| 415 memset(palette, 0, PNG_MAX_PALETTE_LENGTH * sizeof(png_color)); | |
| 416 | |
| 417 for (i = 0; i < img->ncolors; i++) | |
| 418 { | |
| 419 palette[i].red = img->pal[i].r; | |
| 420 palette[i].green = img->pal[i].g; | |
| 421 palette[i].blue = img->pal[i].b; | |
| 422 } | |
| 423 | |
| 424 png_set_PLTE(png_ptr, info_ptr, palette, PNG_MAX_PALETTE_LENGTH); | |
| 425 } | |
| 426 | |
| 427 // png_set_gAMA(png_ptr, info_ptr, 2.2); | |
| 428 | |
| 429 png_write_info(png_ptr, info_ptr); | |
| 430 | |
| 431 | |
| 432 // Write compressed image data | |
| 433 dmWriteImageData(img, (void *) png_ptr, dmWritePNGRow, spec); | |
| 434 | |
| 435 // Write footer | |
| 436 png_write_end(png_ptr, NULL); | |
| 437 | |
| 438 error: | |
| 439 png_free(png_ptr, palette); | |
| 440 palette = NULL; | |
| 441 | |
| 442 if (png_ptr && info_ptr) | |
| 443 png_destroy_write_struct(&png_ptr, &info_ptr); | |
| 444 | |
| 445 return res; | |
| 446 } | |
| 447 | |
| 448 | |
| 449 int dmWritePNGImage(const char *filename, DMImage *img, DMImageSpec *spec) | |
| 450 { | |
| 451 int res; | |
| 452 FILE *fp; | |
| 453 | |
| 454 if ((fp = fopen(filename, "wb")) == NULL) | |
| 455 { | |
| 456 dmError("PNG: could not open file '%s' for writing.\n", filename); | |
| 457 return DMERR_FOPEN; | |
| 458 } | |
| 459 | |
| 460 res = dmWritePNGImageFILE(fp, img, spec); | |
| 461 | |
| 462 fclose(fp); | |
| 463 return res; | |
| 464 } | |
| 465 #endif | |
| 466 | |
| 467 | |
| 468 typedef struct | |
| 469 { | |
| 470 Uint8 r,g,b; | |
| 471 } DMPCXColor; | |
| 472 | |
| 473 | |
| 474 typedef struct | |
| 475 { | |
| 476 Uint8 manufacturer, | |
| 477 version, | |
| 478 encoding, | |
| 479 bpp; | |
| 480 Uint16 xmin, ymin, xmax, ymax; | |
| 481 Uint16 hres, vres; | |
| 482 DMPCXColor colormap[16]; | |
| 483 Uint8 reserved; | |
| 484 Uint8 nplanes; | |
| 485 Uint16 bpl; | |
| 486 Uint16 palinfo; | |
| 487 Uint8 filler[58]; | |
| 488 } DMPCXHeader; | |
| 489 | |
| 490 | |
| 491 typedef struct | |
| 492 { | |
| 493 DMPCXHeader *header; | |
| 494 Uint8 *buf; | |
| 495 size_t bufLen, bufOffs; | |
| 496 int format; | |
| 497 FILE *fp; | |
| 498 } DMPCXData; | |
| 499 | |
| 500 | |
| 501 static inline Uint8 dmPCXGetByte(Uint8 *row, const size_t len, const size_t soffs) | |
| 502 { | |
| 503 return (soffs < len) ? row[soffs] : 0; | |
| 504 } | |
| 505 | |
| 506 static BOOL dmPCXFlush(DMPCXData *pcx) | |
| 507 { | |
| 508 BOOL ret = TRUE; | |
| 509 if (pcx->bufOffs > 0) | |
| 510 ret = fwrite(pcx->buf, sizeof(Uint8), pcx->bufOffs, pcx->fp) == pcx->bufOffs; | |
| 511 pcx->bufOffs = 0; | |
| 512 return ret; | |
| 513 } | |
| 514 | |
| 515 static inline BOOL dmPCXPutByte(DMPCXData *pcx, const Uint8 val) | |
| 516 { | |
| 517 if (pcx->bufOffs < pcx->bufLen) | |
| 518 { | |
| 519 pcx->buf[pcx->bufOffs++] = val; | |
| 520 return TRUE; | |
| 521 } | |
| 522 else | |
| 523 return dmPCXFlush(pcx); | |
| 524 } | |
| 525 | |
| 526 static BOOL dmWritePCXRow(void *cbdata, Uint8 *row, size_t len) | |
| 527 { | |
| 528 DMPCXData *pcx = (DMPCXData *) cbdata; | |
| 529 int plane; | |
| 530 size_t soffs = 0; | |
| 531 | |
| 532 // fprintf(stderr, "%d, %d * %d = %d\n", len, pcx->header->bpl, pcx->header->nplanes, pcx->header->nplanes * pcx->header->bpl); | |
| 533 | |
| 534 pcx->bufOffs = 0; | |
| 535 | |
| 536 for (plane = 0; plane < pcx->header->nplanes; plane++) | |
| 537 { | |
| 538 Uint8 data = dmPCXGetByte(row, len, soffs++), | |
| 539 count = 1; | |
| 540 | |
| 541 // size_t blen = pcx->header->bpl * pcx->header->nplanes; | |
| 542 size_t blen = pcx->header->bpl; | |
| 543 while (soffs < blen) | |
| 544 { | |
| 545 if (data == dmPCXGetByte(row, len, soffs) && count < 63) | |
| 546 { | |
| 547 count++; | |
| 548 soffs++; | |
| 549 } | |
| 550 else | |
| 551 { | |
| 552 if (count == 1 && (data & 0xC0) != 0xC0) | |
| 553 { | |
| 554 if (!dmPCXPutByte(pcx, data)) | |
| 555 return FALSE; | |
| 556 } | |
| 557 else | |
| 558 { | |
| 559 if (!dmPCXPutByte(pcx, 0xC0 | count) || | |
| 560 !dmPCXPutByte(pcx, data)) | |
| 561 return FALSE; | |
| 562 } | |
| 563 | |
| 564 data = dmPCXGetByte(row, len, soffs++); | |
| 565 count = 1; | |
| 566 } | |
| 567 } | |
| 568 | |
| 569 if (count > 1) | |
| 570 { | |
| 571 if (!dmPCXPutByte(pcx, 0xC0 | count) || | |
| 572 !dmPCXPutByte(pcx, data)) | |
| 573 return FALSE; | |
| 574 } | |
| 575 | |
| 576 if (!dmPCXFlush(pcx)) | |
| 577 return FALSE; | |
| 578 } | |
| 579 | |
| 580 | |
| 581 return TRUE; | |
| 582 } | |
| 583 | |
| 584 | |
| 585 int dmWritePCXImageFILE(FILE *fp, DMImage *img, DMImageSpec *spec) | |
| 586 { | |
| 587 DMPCXData pcx; | |
| 588 DMPCXHeader hdr; | |
| 589 int res; | |
| 590 | |
| 591 // Create output file | |
| 592 pcx.buf = NULL; | |
| 593 pcx.format = spec->paletted ? DM_IFMT_PALETTE : DM_IFMT_RGB_PLANE; | |
| 594 pcx.header = &hdr; | |
| 595 pcx.fp = fp; | |
| 596 | |
| 597 // Create PCX header | |
| 598 memset(&hdr, 0, sizeof(hdr)); | |
| 599 if (spec->paletted) | |
| 600 { | |
| 601 int i; | |
| 602 for (i = 0; i < (img->ncolors > 16 ? 16 : img->ncolors); i++) | |
| 603 { | |
| 604 hdr.colormap[i].r = img->pal[i].r; | |
| 605 hdr.colormap[i].g = img->pal[i].g; | |
| 606 hdr.colormap[i].b = img->pal[i].b; | |
| 607 } | |
| 608 } | |
| 609 hdr.manufacturer = 10; | |
| 610 hdr.version = 5; | |
| 611 hdr.encoding = 1; | |
| 612 hdr.bpp = 8; | |
| 613 hdr.hres = img->width * spec->scale; | |
| 614 hdr.vres = img->height * spec->scale; | |
| 615 hdr.xmin = hdr.ymin = 0; | |
| 616 hdr.xmax = hdr.hres - 1; | |
| 617 hdr.ymax = hdr.vres - 1; | |
| 618 hdr.nplanes = dmImageGetBytesPerPixel(pcx.format); | |
| 619 hdr.palinfo = 1; | |
| 620 | |
| 621 res = (img->width * spec->scale); | |
| 622 hdr.bpl = res / 2; | |
| 623 if (res % 2) hdr.bpl++; | |
| 624 hdr.bpl *= 2; | |
| 625 | |
| 626 dmMsg(2, "PCX: paletted=%d, nplanes=%d, bpp=%d, bpl=%d\n", | |
| 627 spec->paletted, hdr.nplanes, hdr.bpp, hdr.bpl); | |
| 628 | |
| 629 pcx.bufLen = hdr.bpl * 4; | |
| 630 if ((pcx.buf = dmMalloc(pcx.bufLen)) == NULL) | |
| 631 { | |
| 632 dmError("PCX: Could not allocate %d bytes for RLE compression buffer.\n", | |
| 633 pcx.bufLen); | |
| 634 res = DMERR_MALLOC; | |
| 635 goto error; | |
| 636 } | |
| 637 | |
| 638 // Write PCX header | |
| 639 if (!dm_fwrite_byte(pcx.fp, hdr.manufacturer) || | |
| 640 !dm_fwrite_byte(pcx.fp, hdr.version) || | |
| 641 !dm_fwrite_byte(pcx.fp, hdr.encoding) || | |
| 642 !dm_fwrite_byte(pcx.fp, hdr.bpp)) | |
| 643 { | |
| 644 dmError("PCX: Could not write basic header data.\n"); | |
| 645 res = DMERR_FWRITE; | |
| 646 goto error; | |
| 647 } | |
| 648 | |
| 649 if (!dm_fwrite_le16(pcx.fp, hdr.xmin) || | |
| 650 !dm_fwrite_le16(pcx.fp, hdr.ymin) || | |
| 651 !dm_fwrite_le16(pcx.fp, hdr.xmax) || | |
| 652 !dm_fwrite_le16(pcx.fp, hdr.ymax) || | |
| 653 !dm_fwrite_le16(pcx.fp, hdr.hres) || | |
| 654 !dm_fwrite_le16(pcx.fp, hdr.vres)) | |
| 655 { | |
| 656 dmError("PCX: Could not write image dimensions.\n"); | |
| 657 res = DMERR_FWRITE; | |
| 658 goto error; | |
| 659 } | |
| 660 | |
| 661 if (!dm_fwrite_str(pcx.fp, (Uint8 *) &hdr.colormap, sizeof(hdr.colormap))) | |
| 662 { | |
| 663 dmError("PCX: Could not write colormap.\n"); | |
| 664 res = DMERR_FWRITE; | |
| 665 goto error; | |
| 666 } | |
| 667 | |
| 668 if (!dm_fwrite_byte(pcx.fp, hdr.reserved) || | |
| 669 !dm_fwrite_byte(pcx.fp, hdr.nplanes) || | |
| 670 !dm_fwrite_le16(pcx.fp, hdr.bpl) || | |
| 671 !dm_fwrite_le16(pcx.fp, hdr.palinfo) || | |
| 672 !dm_fwrite_str(pcx.fp, (Uint8 *) &hdr.filler, sizeof(hdr.filler))) | |
| 673 { | |
| 674 dmError("PCX: Could not write header remainder.\n"); | |
| 675 res = DMERR_FWRITE; | |
| 676 goto error; | |
| 677 } | |
| 678 | |
| 679 // Write image data | |
| 680 res = dmWriteImageData(img, (void *) &pcx, dmWritePCXRow, spec); | |
| 681 | |
| 682 // Write VGA palette | |
| 683 if (spec->paletted) | |
| 684 { | |
| 685 int i; | |
| 686 dm_fwrite_byte(pcx.fp, 0x0C); | |
| 687 dmMsg(2, "PCX: Writing palette of %d active entries.\n", img->ncolors); | |
| 688 | |
| 689 for (i = 0; i < img->ncolors; i++) | |
| 690 { | |
| 691 dm_fwrite_byte(pcx.fp, img->pal[i].r); | |
| 692 dm_fwrite_byte(pcx.fp, img->pal[i].g); | |
| 693 dm_fwrite_byte(pcx.fp, img->pal[i].b); | |
| 694 } | |
| 695 | |
| 696 // Pad the palette, if necessary | |
| 697 for (; i < 256; i++) | |
| 698 { | |
| 699 dm_fwrite_byte(pcx.fp, 0); | |
| 700 dm_fwrite_byte(pcx.fp, 0); | |
| 701 dm_fwrite_byte(pcx.fp, 0); | |
| 702 } | |
| 703 } | |
| 704 | |
| 705 error: | |
| 706 dmFree(pcx.buf); | |
| 707 return res; | |
| 708 } | |
| 709 | |
| 710 | |
| 711 int dmWritePCXImage(const char *filename, DMImage *img, DMImageSpec *spec) | |
| 712 { | |
| 713 FILE *fp; | |
| 714 int res; | |
| 715 | |
| 716 if ((fp = fopen(filename, "wb")) == NULL) | |
| 717 { | |
| 718 dmError("PCX: Could not open file '%s' for writing.\n", filename); | |
| 719 return DMERR_FOPEN; | |
| 720 } | |
| 721 | |
| 722 res = dmWritePCXImageFILE(fp, img, spec); | |
| 723 | |
| 724 fclose(fp); | |
| 725 return res; | |
| 726 } | |
| 727 | |
| 728 | |
| 729 static BOOL dmPCXDecodeRLERow(FILE *fp, Uint8 *buf, const size_t bufLen) | |
| 730 { | |
| 731 size_t offs = 0; | |
| 732 do | |
| 733 { | |
| 734 int count; | |
| 735 Uint8 data; | |
| 736 | |
| 737 if (!dm_fread_byte(fp, &data)) | |
| 738 return FALSE; | |
| 739 | |
| 740 if ((data & 0xC0) == 0xC0) | |
| 741 { | |
| 742 count = data & 0x3F; | |
| 743 if (!dm_fread_byte(fp, &data)) | |
| 744 return FALSE; | |
| 745 } | |
| 746 else | |
| 747 count = 1; | |
| 748 | |
| 749 while (count-- && offs < bufLen) | |
| 750 buf[offs++] = data; | |
| 751 | |
| 752 } while (offs < bufLen); | |
| 753 | |
| 754 return TRUE; | |
| 755 } | |
| 756 | |
| 757 | |
| 758 int dmReadPCXImageFILE(FILE *fp, DMImage **pimg) | |
| 759 { | |
| 760 DMImage *img; | |
| 761 DMPCXData pcx; | |
| 762 DMPCXHeader hdr; | |
| 763 BOOL paletted; | |
| 764 int res = 0, yc, xc; | |
| 765 Uint8 *dp; | |
| 766 | |
| 767 pcx.buf = NULL; | |
| 768 | |
| 769 // Read PCX header | |
| 770 if (!dm_fread_byte(fp, &hdr.manufacturer) || | |
| 771 !dm_fread_byte(fp, &hdr.version) || | |
| 772 !dm_fread_byte(fp, &hdr.encoding) || | |
| 773 !dm_fread_byte(fp, &hdr.bpp)) | |
| 774 { | |
| 775 dmError("PCX: Could not read basic header data.\n"); | |
| 776 res = DMERR_FREAD; | |
| 777 goto error; | |
| 778 } | |
| 779 | |
| 780 if (hdr.manufacturer != 10 || | |
| 781 hdr.version != 5 || | |
| 782 hdr.encoding != 1 || | |
| 783 hdr.bpp != 8) | |
| 784 { | |
| 785 dmError("PCX: Not a PCX file, or unsupported variant.\n"); | |
| 786 res = DMERR_FREAD; | |
| 787 goto error; | |
| 788 } | |
| 789 | |
| 790 if (!dm_fread_le16(fp, &hdr.xmin) || | |
| 791 !dm_fread_le16(fp, &hdr.ymin) || | |
| 792 !dm_fread_le16(fp, &hdr.xmax) || | |
| 793 !dm_fread_le16(fp, &hdr.ymax) || | |
| 794 !dm_fread_le16(fp, &hdr.hres) || | |
| 795 !dm_fread_le16(fp, &hdr.vres)) | |
| 796 { | |
| 797 dmError("PCX: Could not read image dimensions.\n"); | |
| 798 res = DMERR_FREAD; | |
| 799 goto error; | |
| 800 } | |
| 801 | |
| 802 if (!dm_fread_str(fp, (Uint8 *) &hdr.colormap, sizeof(hdr.colormap))) | |
| 803 { | |
| 804 dmError("PCX: Could not read colormap.\n"); | |
| 805 res = DMERR_FREAD; | |
| 806 goto error; | |
| 807 } | |
| 808 | |
| 809 if (!dm_fread_byte(fp, &hdr.reserved) || | |
| 810 !dm_fread_byte(fp, &hdr.nplanes) || | |
| 811 !dm_fread_le16(fp, &hdr.bpl) || | |
| 812 !dm_fread_le16(fp, &hdr.palinfo) || | |
| 813 !dm_fread_str(fp, (Uint8 *) &hdr.filler, sizeof(hdr.filler))) | |
| 814 { | |
| 815 dmError("PCX: Could not read header remainder.\n"); | |
| 816 res = DMERR_FREAD; | |
| 817 goto error; | |
| 818 } | |
| 819 | |
| 820 if (hdr.nplanes != 3 && hdr.nplanes != 1) | |
| 821 { | |
| 822 dmError("PCX: Unsupported number of bitplanes %d.\n", hdr.nplanes); | |
| 823 res = DMERR_FREAD; | |
| 824 goto error; | |
| 825 } | |
| 826 | |
| 827 // Allocate image | |
| 828 if ((*pimg = img = dmImageAlloc(hdr.xmax - hdr.xmin + 1, hdr.ymax - hdr.ymin + 1)) == NULL) | |
| 829 { | |
| 830 dmError("PCX: Could not allocate image structure.\n"); | |
| 831 res = DMERR_MALLOC; | |
| 832 goto error; | |
| 833 } | |
| 834 | |
| 835 paletted = hdr.nplanes == 1; | |
| 836 pcx.bufLen = hdr.nplanes * hdr.bpl; | |
| 837 if ((pcx.buf = dmMalloc(pcx.bufLen)) == NULL) | |
| 838 { | |
| 839 dmError("PCX: Could not allocate RLE buffer.\n"); | |
| 840 res = DMERR_MALLOC; | |
| 841 goto error; | |
| 842 } | |
| 843 | |
| 844 // Read image data | |
| 845 dp = img->data; | |
| 846 for (yc = 0; yc < img->height; yc++) | |
| 847 { | |
| 848 // Decode row of RLE'd data | |
| 849 if (!dmPCXDecodeRLERow(fp, pcx.buf, pcx.bufLen)) | |
| 850 { | |
| 851 dmError("PCX: Error decoding RLE data.\n"); | |
| 852 res = DMERR_INVALID_DATA; | |
| 853 goto error; | |
| 854 } | |
| 855 | |
| 856 // Decode bitplanes | |
| 857 switch (hdr.nplanes) | |
| 858 { | |
| 859 case 1: | |
| 860 memcpy(dp, pcx.buf, img->width); | |
| 861 break; | |
| 862 | |
| 863 case 3: | |
| 864 { | |
| 865 Uint8 *dptr = dp, | |
| 866 *sptr1 = pcx.buf, | |
| 867 *sptr2 = sptr1 + hdr.bpl, | |
| 868 *sptr3 = sptr2 + hdr.bpl; | |
| 869 | |
| 870 for (xc = 0; xc < img->width; xc++) | |
| 871 { | |
| 872 *dptr++ = *sptr1++; | |
| 873 *dptr++ = *sptr2++; | |
| 874 *dptr++ = *sptr3++; | |
| 875 } | |
| 876 } | |
| 877 break; | |
| 878 } | |
| 879 | |
| 880 dp += img->pitch; | |
| 881 } | |
| 882 | |
| 883 // Read VGA palette | |
| 884 if (paletted) | |
| 885 { | |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
886 int i, ncolors; |
| 435 | 887 Uint8 tmpb; |
| 888 BOOL read; | |
| 889 | |
| 890 if (!dm_fread_byte(fp, &tmpb) || tmpb != 0x0C) | |
| 891 { | |
| 892 read = FALSE; | |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
893 ncolors = 16; |
| 435 | 894 } |
| 895 else | |
| 896 { | |
| 897 read = TRUE; | |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
898 ncolors = 256; |
| 435 | 899 } |
| 900 | |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
901 if (!dmImageAllocPalette(img, ncolors)) |
| 435 | 902 { |
| 903 dmError("PCX: Could not allocate palette data!\n"); | |
| 904 res = DMERR_MALLOC; | |
| 905 goto error; | |
| 906 } | |
| 907 | |
| 908 if (read) | |
| 909 { | |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
910 if (!dmReadPaletteData(fp, img->pal, ncolors)) |
| 435 | 911 { |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
912 dmError("PCX: Error reading palette.\n"); |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
913 return DMERR_FREAD; |
| 435 | 914 } |
| 915 } | |
| 916 else | |
| 917 { | |
| 918 for (i = 0; i < img->ncolors; i++) | |
| 919 { | |
| 920 if (i < 16) | |
| 921 { | |
| 922 img->pal[i].r = hdr.colormap[i].r; | |
| 923 img->pal[i].g = hdr.colormap[i].g; | |
| 924 img->pal[i].b = hdr.colormap[i].b; | |
| 925 } | |
| 926 } | |
| 927 } | |
| 928 } | |
| 929 | |
| 930 error: | |
| 931 dmFree(pcx.buf); | |
| 932 return res; | |
| 933 } | |
| 934 | |
| 935 | |
| 936 int dmReadPCXImage(const char *filename, DMImage **pimg) | |
| 937 { | |
| 938 FILE *fp; | |
| 939 int res; | |
| 940 | |
| 941 if ((fp = fopen(filename, "rb")) == NULL) | |
| 942 { | |
| 943 dmError("PCX: Could not open file '%s' for reading.\n", filename); | |
| 944 return -15; | |
| 945 } | |
| 946 | |
| 947 res = dmReadPCXImageFILE(fp, pimg); | |
| 948 | |
| 949 fclose(fp); | |
| 950 return res; | |
| 951 } | |
| 952 | |
| 953 | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
954 #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
|
955 #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
|
956 #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
|
957 #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
|
958 #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
|
959 #define IFF_ID_CAMG 0x43414D47 // "CAMG" |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
960 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
961 #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
|
962 #define IFF_MASK_HAS_MASK 1 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
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|
963 #define IFF_MASK_TRANSP 2 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
964 #define IFF_MASK_LASSO 3 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
965 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
966 #define IFF_COMP_NONE 0 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
967 #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
|
968 |
|
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 #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
|
970 #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
|
971 #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
|
972 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
973 typedef struct |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
974 { |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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diff
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|
975 Uint32 id; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
976 Uint32 size; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
977 int count; |
| 445 | 978 char str[6]; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
979 } DMIFFChunk; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
980 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
981 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
982 typedef struct |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
983 { |
|
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Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
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diff
changeset
|
984 Uint16 w, h; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
985 Sint16 x, y; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
986 Uint8 nplanes; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
987 Uint8 masking; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
988 Uint8 compression; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
989 Uint8 pad1; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
990 Uint16 transp; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
991 Uint8 xasp, yasp; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
992 Sint16 pagew, pageh; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
993 } DMIFFBMHD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
994 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
995 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
996 typedef struct |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
997 { |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
998 DMIFFChunk chBMHD, chCMAP, chBODY; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
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443
diff
changeset
|
999 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
|
1000 Uint32 camg; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1001 int ncolors; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1002 DMColor *pal; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
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443
diff
changeset
|
1003 BOOL paletted; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
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443
diff
changeset
|
1004 } DMIFF; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
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443
diff
changeset
|
1005 |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
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443
diff
changeset
|
1006 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1007 static BOOL dmReadIFFChunk(FILE *fp, DMIFFChunk *chunk) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1008 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1009 if (!dm_fread_be32(fp, &chunk->id) || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1010 !dm_fread_be32(fp, &chunk->size)) |
|
f7c9d1619c74
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Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1011 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1012 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>
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442
diff
changeset
|
1013 return FALSE; |
|
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>
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442
diff
changeset
|
1015 else |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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diff
changeset
|
1016 return TRUE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1017 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1018 |
| 445 | 1019 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
|
1020 { |
| 445 | 1021 chunk->str[0] = (chunk->id >> 24) & 0xff; |
| 1022 chunk->str[1] = (chunk->id >> 16) & 0xff; | |
| 1023 chunk->str[2] = (chunk->id >> 8) & 0xff; | |
| 1024 chunk->str[3] = (chunk->id) & 0xff; | |
| 1025 chunk->str[4] = 0; | |
| 1026 return chunk->str; | |
|
443
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 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1029 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
|
1030 { |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1031 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
|
1032 { |
|
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 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
|
1034 chunk->size - used, used, chunk->size); |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1035 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
|
1036 } |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1037 else |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1038 return TRUE; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1039 } |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1040 |
| 445 | 1041 static BOOL dmCheckIFFChunk(DMIFFChunk *dest, DMIFFChunk *chunk, |
| 1042 const BOOL multi, const Uint32 minSize) | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1043 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1044 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
|
1045 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1046 dmError("ILBM: Multiple instances of chunk %s found.\n", |
| 445 | 1047 dmGetIFFChunkID(chunk)); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1048 return FALSE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1049 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1050 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1051 dest->count++; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1052 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1053 if (chunk->size < minSize) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1054 return FALSE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1055 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1056 return TRUE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1057 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1058 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1059 |
|
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
|
1060 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
|
1061 { |
|
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 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
|
1063 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
|
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 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
|
1066 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
|
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 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
|
1069 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
|
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 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
|
1072 { |
|
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 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
|
1074 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
|
1075 } |
|
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.
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diff
changeset
|
1077 if (dcount < 0) |
|
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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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|
1078 { |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1079 int count = (-dcount) + 1; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1080 if (!dm_fread_byte(fp, &data)) |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1081 return FALSE; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1082 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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|
1083 while (count-- && offs < bufLen) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1084 buf[offs++] = data; |
|
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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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diff
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|
1086 else |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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445
diff
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|
1087 { |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
changeset
|
1088 int count = dcount + 1; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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parents:
445
diff
changeset
|
1089 while (count-- && offs < bufLen) |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1090 { |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
changeset
|
1091 if (!dm_fread_byte(fp, &data)) |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1092 return FALSE; |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1093 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1094 buf[offs++] = data; |
|
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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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|
1095 } |
|
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diff
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|
1096 } |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1097 } while (offs < bufLen); |
|
0e27860ddcfe
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.
Matti Hamalainen <ccr@tnsp.org>
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|
1099 return TRUE; |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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|
1100 } |
|
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diff
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|
1101 |
|
0e27860ddcfe
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|
1102 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1103 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.
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|
1104 { |
|
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|
1105 if (iff->bmhd.compression == IFF_COMP_BYTERUN1) |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1106 return dmIFFDecodeByteRun1Row(fp, buf, bufLen); |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1107 else |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1108 return dm_fread_str(fp, buf, bufLen); |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
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|
1109 } |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1110 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
changeset
|
1111 |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1112 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>
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diff
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|
1113 { |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1114 int xc; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1115 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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|
1116 { |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1117 const Uint8 data = (src[xc / 8] >> (7 - (xc & 7))) & 1; |
|
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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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|
1118 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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|
1119 } |
|
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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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|
1120 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1121 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1122 |
|
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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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|
1123 int dmDecodeILBMBody(FILE *fp, DMIFF *iff, DMImage **pimg, Uint32 *read) |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
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443
diff
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|
1124 { |
|
447
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1125 DMImage *img; |
|
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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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|
1126 Uint8 *buf; |
|
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Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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|
1127 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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|
1128 int yc, res = DMERR_OK; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
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|
1129 |
|
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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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|
1130 *read = 0; |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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diff
changeset
|
1131 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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445
diff
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|
1132 // Allocate image |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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parents:
445
diff
changeset
|
1133 if ((*pimg = img = dmImageAlloc(iff->bmhd.w, iff->bmhd.h)) == 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
changeset
|
1134 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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|
1135 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
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parents:
445
diff
changeset
|
1136 // Allocate planar decoding buffer |
|
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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|
1137 bufLen = ((img->width + 15) / 16) * 2; |
|
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 ((buf = dmMalloc(bufLen)) == NULL) |
|
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
|
1139 return DMERR_MALLOC; |
|
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
|
1140 |
|
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 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>
parents:
445
diff
changeset
|
1142 |
|
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 // Decode the chunk |
|
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 for (yc = 0; yc < img->height; yc++) |
|
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 { |
|
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 int 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
|
1147 const int nplanes = iff->bmhd.nplanes; |
|
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 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>
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 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>
parents:
445
diff
changeset
|
1151 |
|
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 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>
parents:
445
diff
changeset
|
1153 { |
|
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 // 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
|
1155 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
|
1156 { |
|
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 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:
445
diff
changeset
|
1158 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
|
1159 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
|
1160 } |
|
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 // 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
|
1163 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
|
1164 |
|
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 *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
|
1166 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1167 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1168 // 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
|
1169 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
|
1170 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1171 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
|
1172 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1173 // 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
|
1174 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
|
1175 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1176 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
|
1177 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
|
1178 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
|
1179 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1180 |
|
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
|
1181 // Decode mask |
|
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
|
1182 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>
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445
diff
changeset
|
1183 { |
|
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
|
1184 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>
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445
diff
changeset
|
1185 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1186 // 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>
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445
diff
changeset
|
1187 if (!data) |
|
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
|
1188 dp[xc] = 0; |
|
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
|
1189 } |
|
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
|
1190 |
|
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
|
1191 *read += 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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445
diff
changeset
|
1192 } |
|
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
|
1193 } |
|
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
|
1194 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1195 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
|
1196 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
|
1197 return res; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1198 } |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1199 |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1200 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1201 int dmReadILBMImageFILE(FILE *fp, DMImage **pimg) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1202 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1203 Uint32 idILBM; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1204 DMIFFChunk chunk; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1205 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
|
1206 Uint32 read; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1207 BOOL parsed = FALSE; |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1208 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
|
1209 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1210 memset(&iff, 0, sizeof(iff)); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
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442
diff
changeset
|
1211 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1212 // Read IFF FORM header |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1213 if (!dmReadIFFChunk(fp, &chunk) || |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1214 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
|
1215 chunk.size < 32) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1216 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1217 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
|
1218 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1219 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1220 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1221 // Check IFF ILBM signature |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1222 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
|
1223 idILBM != IFF_ID_ILBM) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1224 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1225 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
|
1226 return DMERR_INVALID_DATA; |
|
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 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1229 while (!parsed && !feof(fp)) |
|
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 if (!dmReadIFFChunk(fp, &chunk)) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1232 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1233 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
|
1234 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1235 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1236 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1237 switch (chunk.id) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1238 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1239 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
|
1240 // Check for multiple occurences of BMHD |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1241 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
|
1242 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1243 |
|
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
|
1244 // Read BMHD data |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1245 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
|
1246 !dm_fread_be16(fp, &iff.bmhd.h) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1247 !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
|
1248 !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
|
1249 !dm_fread_byte(fp, &iff.bmhd.nplanes) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1250 !dm_fread_byte(fp, &iff.bmhd.masking) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1251 !dm_fread_byte(fp, &iff.bmhd.compression) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1252 !dm_fread_byte(fp, &iff.bmhd.pad1) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1253 !dm_fread_be16(fp, &iff.bmhd.transp) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1254 !dm_fread_byte(fp, &iff.bmhd.xasp) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1255 !dm_fread_byte(fp, &iff.bmhd.yasp) || |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1256 !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
|
1257 !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
|
1258 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1259 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
|
1260 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1261 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1262 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
|
1263 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
|
1264 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
|
1265 |
|
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
|
1266 // 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
|
1267 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
|
1268 (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
|
1269 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
|
1270 (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
|
1271 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
|
1272 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
|
1273 { |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1274 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
|
1275 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
|
1276 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1277 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1278 if (!dmSkipIFFChunkRest(fp, &chunk, sizeof(iff.bmhd))) |
|
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1279 return DMERR_FREAD; |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1280 break; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1281 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1282 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1283 case IFF_ID_CMAP: |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1284 // Check for multiple occurences of CMAP |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1285 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
|
1286 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1287 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1288 // Check for sanity |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1289 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
|
1290 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
|
1291 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1292 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
|
1293 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
|
1294 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
|
1295 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1296 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
|
1297 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
|
1298 |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1299 // Read palette |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1300 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
|
1301 { |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1302 if (!dmPaletteAlloc(&iff.pal, iff.ncolors)) |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1303 { |
|
451
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1304 dmError("ILBM: Could not allocate palette data.\n"); |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1305 return DMERR_MALLOC; |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1306 } |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1307 if (!dmReadPaletteData(fp, iff.pal, iff.ncolors)) |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1308 { |
|
fdc91f2a0d27
Modularize palette reading and handling code.
Matti Hamalainen <ccr@tnsp.org>
parents:
449
diff
changeset
|
1309 dmError("ILBM: Error reading CMAP.\n"); |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1310 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1311 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1312 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1313 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1314 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
|
1315 parsed = TRUE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1316 break; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1317 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1318 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
|
1319 // Check for multiple occurences of CMAP |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1320 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
|
1321 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1322 |
|
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
|
1323 // Check for sanity |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1324 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
|
1325 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1326 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
|
1327 return DMERR_INVALID_DATA; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1328 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1329 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1330 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
|
1331 |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1332 // 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
|
1333 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
|
1334 return res; |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1335 |
|
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
|
1336 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
|
1337 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
|
1338 |
|
444
7d588807f91d
Clean up the IFF parser a bit.
Matti Hamalainen <ccr@tnsp.org>
parents:
443
diff
changeset
|
1339 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
|
1340 parsed = TRUE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1341 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
|
1342 |
|
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 |
|
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
|
1344 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
|
1345 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
|
1346 { |
|
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
|
1347 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
|
1348 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
|
1349 } |
|
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
|
1350 |
|
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
|
1351 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
|
1352 |
|
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
|
1353 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
|
1354 { |
|
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
|
1355 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
|
1356 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
|
1357 } |
|
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
|
1358 |
|
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
|
1359 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
|
1360 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
|
1361 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
|
1362 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1363 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1364 default: |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1365 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1366 dmMsg(3, "Unknown chunk ID '%s', size %d\n", |
| 445 | 1367 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
|
1368 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1369 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
|
1370 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1371 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
|
1372 return DMERR_FREAD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1373 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1374 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1375 break; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1376 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1377 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1378 if (chunk.size & 1) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1379 fgetc(fp); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1380 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1381 |
|
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
|
1382 // 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
|
1383 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
|
1384 { |
|
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
|
1385 // 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
|
1386 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
|
1387 { |
|
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
|
1388 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
|
1389 { |
|
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
|
1390 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
|
1391 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
|
1392 } |
|
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
|
1393 |
|
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
|
1394 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
|
1395 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
|
1396 |
|
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
|
1397 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
|
1398 { |
|
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
|
1399 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
|
1400 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
|
1401 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
|
1402 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
|
1403 } |
|
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
|
1404 } |
|
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
|
1405 |
|
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
|
1406 (*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
|
1407 (*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
|
1408 } |
|
0e27860ddcfe
Finish initial implementation of IFF ILBM loader. And whoa .. it seems to be working.
Matti Hamalainen <ccr@tnsp.org>
parents:
445
diff
changeset
|
1409 |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1410 return res; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1411 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1412 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1413 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1414 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
|
1415 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1416 FILE *fp; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1417 int res; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1418 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1419 if ((fp = fopen(filename, "rb")) == NULL) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1420 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1421 dmError("ILBM: Could not open file '%s' for reading.\n", filename); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1422 return DMERR_FOPEN; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1423 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1424 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1425 res = dmReadILBMImageFILE(fp, pimg); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1426 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1427 fclose(fp); |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1428 return res; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1429 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1430 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1431 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1432 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1433 |
| 435 | 1434 static int fmtProbePNG(const Uint8 *buf, const size_t len) |
| 1435 { | |
| 1436 if (len > 64 && buf[0] == 0x89 && | |
| 1437 buf[1] == 'P' && buf[2] == 'N' && buf[3] == 'G' && | |
| 1438 buf[4] == 0x0d && buf[5] == 0x0a) | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1439 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1440 if (buf[12] == 'I' && buf[13] == 'H' && |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1441 buf[14] == 'D' && buf[15] == 'R') |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1442 return DM_PROBE_SCORE_MAX; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1443 else |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1444 return DM_PROBE_SCORE_GOOD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1445 } |
| 435 | 1446 |
| 1447 return DM_PROBE_SCORE_FALSE; | |
| 1448 } | |
| 1449 | |
| 1450 | |
| 1451 static int fmtProbePCX(const Uint8 *buf, const size_t len) | |
| 1452 { | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1453 if (len > 128 + 32 && |
| 435 | 1454 buf[0] == 10 && |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1455 (buf[1] == 5 || buf[1] == 2 || buf[1] == 3) && |
| 435 | 1456 buf[2] == 1 && |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1457 (buf[3] == 8 || buf[3] == 4 || buf[3] == 3 || buf[3] == 1) && |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1458 buf[65] >= 1 && buf[65] <= 4) |
| 435 | 1459 return DM_PROBE_SCORE_GOOD; |
| 1460 | |
| 1461 return DM_PROBE_SCORE_FALSE; | |
| 1462 } | |
| 1463 | |
| 1464 | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1465 static int fmtProbeILBM(const Uint8 *buf, const size_t len) |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1466 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1467 if (len > 32 && |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1468 buf[ 0] == 'F' && buf[ 1] == 'O' && |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1469 buf[ 2] == 'R' && buf[ 3] == 'M' && |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1470 buf[ 8] == 'I' && buf[ 9] == 'L' && |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1471 buf[10] == 'B' && buf[11] == 'M') |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1472 { |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1473 if (buf[12] == 'B' && buf[13] == 'M' && |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1474 buf[14] == 'H' && buf[15] == 'D') |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1475 return DM_PROBE_SCORE_MAX; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1476 else |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1477 return DM_PROBE_SCORE_GOOD; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1478 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1479 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1480 return DM_PROBE_SCORE_FALSE; |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1481 } |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1482 |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1483 |
| 435 | 1484 DMImageFormat dmImageFormatList[IMGFMT_LAST] = |
| 1485 { | |
| 1486 { | |
| 1487 "PNG", "Portable Network Graphics", | |
| 1488 fmtProbePNG, | |
| 1489 NULL, NULL, | |
| 1490 #ifdef DM_USE_LIBPNG | |
| 1491 dmWritePNGImage, dmWritePNGImageFILE, | |
| 1492 #else | |
| 1493 NULL, NULL, | |
| 1494 #endif | |
| 1495 }, | |
| 1496 { | |
| 1497 "PPM", "Portable PixMap", | |
| 1498 NULL, | |
| 1499 NULL, NULL, | |
| 1500 dmWritePPMImage, dmWritePPMImageFILE, | |
| 1501 }, | |
| 1502 { | |
| 1503 "PCX", "Z-Soft Paintbrush", | |
| 1504 fmtProbePCX, | |
| 1505 dmReadPCXImage, dmReadPCXImageFILE, | |
| 1506 dmWritePCXImage, dmWritePCXImageFILE, | |
| 1507 }, | |
| 1508 { | |
|
443
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1509 "ILBM", "IFF ILBM", |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1510 fmtProbeILBM, |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1511 dmReadILBMImage, dmReadILBMImageFILE, |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1512 NULL, NULL, |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1513 }, |
|
f7c9d1619c74
Beginnings of IFF ILBM reader. Not functional, only chunk parsing,
Matti Hamalainen <ccr@tnsp.org>
parents:
442
diff
changeset
|
1514 { |
| 435 | 1515 "ARAW", "IFFMaster Amiga RAW", |
| 1516 NULL, | |
| 1517 NULL, NULL, | |
| 1518 dmWriteIFFMasterRAWImage, dmWriteIFFMasterRAWImageFILE, | |
| 1519 } | |
| 1520 }; | |
| 1521 | |
| 1522 | |
| 1523 int dmImageProbeGeneric(const Uint8 *buf, const size_t len, DMImageFormat **pfmt, int *index) | |
| 1524 { | |
| 1525 int i, scoreMax = DM_PROBE_SCORE_FALSE, scoreIndex = -1; | |
| 1526 | |
| 1527 for (i = 0; i < IMGFMT_LAST; i++) | |
| 1528 { | |
| 1529 DMImageFormat *fmt = &dmImageFormatList[i]; | |
|
442
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1530 if (fmt->probe != NULL) |
| 435 | 1531 { |
|
442
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1532 int score = fmt->probe(buf, len); |
|
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1533 if (score > scoreMax) |
|
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1534 { |
|
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1535 scoreMax = score; |
|
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1536 scoreIndex = i; |
|
a67600e186d0
Fix probing to handle NULL probe functions.
Matti Hamalainen <ccr@tnsp.org>
parents:
440
diff
changeset
|
1537 } |
| 435 | 1538 } |
| 1539 } | |
| 1540 | |
| 1541 if (scoreIndex >= 0) | |
| 1542 { | |
| 1543 *pfmt = &dmImageFormatList[scoreIndex]; | |
| 1544 *index = scoreIndex; | |
| 1545 return scoreMax; | |
| 1546 } | |
| 1547 else | |
| 1548 return DM_PROBE_SCORE_FALSE; | |
| 1549 } |