/[public]/psiconv/trunk/lib/psiconv/parse_image.c
ViewVC logotype

Contents of /psiconv/trunk/lib/psiconv/parse_image.c

Parent Directory Parent Directory | Revision Log Revision Log


Revision 64 - (show annotations)
Fri Dec 15 00:21:51 2000 UTC (18 years, 10 months ago) by frodo
File MIME type: text/plain
File size: 23323 byte(s)
(Frodo) Massive update: theoretically, all return codes are now checked.
        Untested - may have many typos.

1 /*
2 parse_image.c - Part of psiconv, a PSION 5 file formats converter
3 Copyright (c) 1999, 2000 Frodo Looijaard <frodol@dds.nl>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19
20 #include "config.h"
21 #include <stdlib.h>
22
23 #include "data.h"
24 #include "parse_routines.h"
25
26 int psiconv_parse_jumptable_section(const psiconv_buffer buf,int lev,
27 psiconv_u32 off, int *length,
28 psiconv_jumptable_section *result)
29 {
30 int res = 0;
31 int len = 0;
32 psiconv_u32 listlen,temp;
33 int i;
34
35 psiconv_progress(lev+1,off+len,"Going to read the jumptable section");
36 if (!((*result) = psiconv_list_new(sizeof(psiconv_u32))))
37 goto ERROR1;
38
39 psiconv_progress(lev+2,off+len,"Going to read the list length");
40 listlen = psiconv_read_u32(buf,lev+2,off+len,&res);
41 if (!res)
42 goto ERROR2;
43 psiconv_debug(lev+2,off+len,"List length: %08x",listlen);
44 len += 4;
45
46 psiconv_progress(lev+2,off+len,"Going to read the list");
47 for (i = 0; i < listlen; i++) {
48 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
49 if (!res)
50 goto ERROR2;
51 if ((res = psiconv_list_add(*result,&temp)))
52 goto ERROR2;
53 psiconv_debug(lev+3,off+len,"Offset: %08x",temp);
54 len += 4;
55 }
56
57 if (length)
58 *length = len;
59
60 psiconv_progress(lev+1,off+len-1,"End of jumptable section "
61 "(total length: %08x)", len);
62
63 return 0;
64
65 ERROR2:
66 psiconv_list_free(*result);
67 ERROR1:
68 psiconv_warn(lev+1,off,"Reading of Jumptable Section failed");
69 if (length)
70 *length = 0;
71 if (!res)
72 return -PSICONV_E_NOMEM;
73 else
74 return res;
75 }
76
77 static int decode_byte(int lev, psiconv_u32 off,
78 psiconv_paint_data_section data, int *pixelnr,
79 psiconv_u8 byte, int bits_per_pixel, int linelen,
80 int *linepos,int picsize)
81 {
82 int mask = (bits_per_pixel << 1) -1;
83 int i;
84 if (*linepos < (data->xsize + (8/bits_per_pixel) - 1) / (8/bits_per_pixel))
85 for (i = 0; i < 8/bits_per_pixel; i ++) {
86 if ((i != 0) && ((*pixelnr % (data->xsize)) == 0)) {
87 psiconv_debug(lev+1,off,"Skipping padding: %02x",byte);
88 i = 8;
89 } else if (*pixelnr >= picsize) {
90 psiconv_warn(lev+1,off,"Corrupted picture data!");
91 psiconv_debug(lev+1,off,"Trying to write a pixel too far");
92 return -1;
93 } else {
94 data->red[*pixelnr] = data->green[*pixelnr] = data->blue[*pixelnr] =
95 ((float) (byte & mask)) / ((1 << bits_per_pixel) -1);
96 psiconv_debug(lev+1,off,"Pixel %04x: (%04x,%04x) value %02x, color %f",
97 *pixelnr,*pixelnr % data->xsize,
98 *pixelnr / data->xsize, byte&mask, data->red[*pixelnr]);
99 byte = byte >> bits_per_pixel;
100 (*pixelnr) ++;
101 }
102 }
103 else
104 psiconv_debug(lev+1,off,"Skipping padding byte");
105 (*linepos) ++;
106 if (*linepos == linelen)
107 *linepos = 0;
108 return 0;
109 }
110
111
112 int psiconv_parse_paint_data_section(const psiconv_buffer buf,int lev,
113 psiconv_u32 off, int *length,int isclipart,
114 psiconv_paint_data_section *result)
115 {
116 int res = 0;
117 int len = 0;
118 psiconv_u32 size,offset,picsize,temp,datasize,pixelnr,datanr,linelen;
119 psiconv_u8 marker;
120 int i,leng;
121 psiconv_u32 bits_per_pixel,compression;
122 int linepos = 0;
123
124 psiconv_progress(lev+1,off,"Going to read a paint data section");
125 if (!((*result) = malloc(sizeof(**result))))
126 goto ERROR1;
127
128 psiconv_progress(lev+2,off+len,"Going to read section size");
129 size = psiconv_read_u32(buf,lev+2,off+len,&res);
130 if (res)
131 goto ERROR2;
132 psiconv_debug(lev+2,off+len,"Section size: %08x",size);
133 len += 4;
134
135 psiconv_progress(lev+2,off+len,"Going to read pixel data offset");
136 offset = psiconv_read_u32(buf,lev+2,off+len,&res);
137 if (res)
138 goto ERROR2;
139 if (offset != 0x28) {
140 psiconv_warn(lev+2,off+len,
141 "Paint data section data offset has unexpected value");
142 psiconv_debug(lev+2,off+len,
143 "Data offset: read %08x, expected %08x",offset,0x28);
144 res = -1;
145 }
146 len += 4;
147
148 psiconv_progress(lev+2,off+len,"Going to read picture X size");
149 (*result)->xsize = psiconv_read_u32(buf,lev+2,off+len,&res);
150 if (res)
151 goto ERROR2;
152 psiconv_debug(lev+2,off+len,"Picture X size: %08x:",(*result)->xsize);
153 len += 4;
154
155 psiconv_progress(lev+2,off+len,"Going to read picture Y size");
156 (*result)->ysize = psiconv_read_u32(buf,lev+2,off+len,&res);
157 if (res)
158 goto ERROR2;
159 psiconv_debug(lev+2,off+len,"Picture Y size: %08x:",(*result)->ysize);
160 len += 4;
161
162 picsize = (*result)->ysize * (*result)->xsize;
163
164 psiconv_progress(lev+2,off+len,"Going to read the real picture x size");
165 (*result)->pic_xsize = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
166 if (res)
167 goto ERROR2;
168 psiconv_debug(lev+2,off+len,"Picture x size: %f",(*result)->pic_xsize);
169 len += leng;
170
171 psiconv_progress(lev+2,off+len,"Going to read the real picture y size");
172 (*result)->pic_ysize = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
173 if (res)
174 goto ERROR2;
175 psiconv_debug(lev+2,off+len,"Picture y size: %f",(*result)->pic_ysize);
176 len += leng;
177
178 psiconv_progress(lev+2,off+len,"Going to read the number of bits per pixel");
179 bits_per_pixel=psiconv_read_u32(buf,lev+2,off+len,&res);
180 if (res)
181 goto ERROR2;
182 if (bits_per_pixel > 8) {
183 psiconv_warn(lev+2,off+len,"Picture has too many colors");
184 psiconv_debug(lev+2,off+len,"Read %d colorbits",bits_per_pixel);
185 res = -PSICONV_E_PARSE;
186 goto ERROR2;
187 }
188 psiconv_debug(lev+2,off+len,"Bits per pixel: %d",bits_per_pixel);
189 len += 4;
190
191 for (i = 0 ; i < 2; i++) {
192 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
193 if (res)
194 goto ERROR2;
195 if (temp != 00) {
196 psiconv_warn(lev+2,off+len,
197 "Paint data section prologue has unknown values (ignored)");
198 psiconv_debug(lev+2,off+len,
199 "offset %02x: read %08x, expected %08x",i,temp, 0x00);
200 }
201 len += 4;
202 }
203
204 psiconv_progress(lev+2,off+len,
205 "Going to read whether RLE compression is used");
206 compression=psiconv_read_u32(buf,lev+2,off+len,&res);
207 if (res)
208 goto ERROR2;
209 if (compression > 1) {
210 psiconv_warn(lev+2,off+len,"Paint data section has unknown "
211 "compression type, assuming RLE");
212 psiconv_debug(lev+2,off+len,"Read compression type %d",compression);
213 compression = 1;
214 }
215 psiconv_debug(lev+2,off+len,"Compression: %s",compression?"RLE":"none");
216 len += 4;
217
218 if (isclipart) {
219 psiconv_progress(lev+2,off+len,"Going to read an unknown long");
220 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
221 if (res)
222 goto ERROR2;
223 if (temp != 0xffffffff) {
224 psiconv_warn(lev+2,off+len,
225 "Paint data section prologue has unknown values (ignoring)");
226 psiconv_debug(lev+2,off+len,
227 "offset %02x: read %08x, expected %08x",i,temp, 0xffffffff);
228 }
229 len += 4;
230 psiconv_progress(lev+2,off+len,"Going to read a second unknown long");
231 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
232 if (res)
233 goto ERROR2;
234 if (temp != 0x44) {
235 psiconv_warn(lev+2,off+len,
236 "Paint data section prologue has unknown values (ignoring)");
237 psiconv_debug(lev+2,off+len,
238 "offset %02x: read %08x, expected %08x",i,temp, 0x44);
239 }
240 len += 4;
241 }
242
243 if (!((*result)->red = malloc(sizeof(float) * picsize)))
244 goto ERROR2;
245 if (!((*result)->green = malloc(sizeof(float) * picsize)))
246 goto ERROR3;
247 if (!((*result)->blue = malloc(sizeof(float) * picsize)))
248 goto ERROR4;
249 len = offset;
250 datasize = size - len;
251 if (isclipart)
252 len += 8;
253
254 psiconv_progress(lev+2,off+len,"Going to read the pixel data");
255 pixelnr = 0;
256 datanr = 0;
257 if (!compression) {
258 linelen = datasize / (*result)->ysize;
259 psiconv_debug(lev+3,off+len,"Line length: %04x bytes",linelen);
260 while((datanr < datasize)) {
261 temp = psiconv_read_u8(buf,lev+2,off+len+datanr,&res);
262 if (res)
263 goto ERROR5;
264 if (decode_byte(lev+3,off+len+datanr,*result,&pixelnr,temp,bits_per_pixel,
265 linelen,&linepos,picsize)) {
266 res = -PSICONV_E_PARSE;
267 break;
268 }
269 datanr++;
270 }
271 } else {
272 psiconv_progress(lev+2,off+len,"First pass: determining line length");
273 datanr = 0;
274 i = 0;
275 while (datanr < datasize) {
276 marker = psiconv_read_u8(buf,lev+3,off+len+datanr,&res);
277 if (res)
278 goto ERROR5;
279 if (marker >= 0x80) {
280 datanr += 0x100 - marker + 1;
281 i += 0x100 - marker;
282 } else {
283 datanr += 2;
284 i += marker + 1;
285 }
286 }
287 linelen = i / (*result)->ysize;
288 datanr=0;
289 psiconv_debug(lev+2,off+len,"Linelen: %04x bytes",linelen);
290 while((datanr < datasize)) {
291 marker = psiconv_read_u8(buf,lev+3,off+len+datanr,&res);
292 if (res)
293 goto ERROR5;
294 psiconv_debug(lev+3,off+len+datanr,
295 "Pixelnr %08x, Datanr %08x: Read marker %02x",
296 pixelnr,datanr,marker);
297 datanr ++;
298 if (marker >= 0x80) {
299 /* 0x100 - marker bytes of data follow */
300 for (i = 0; i < 0x100-marker; i++,datanr++) {
301 if (datanr >= datasize) {
302 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data");
303 psiconv_debug(lev+3,off+len+datanr,
304 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
305 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr,
306 datanr,marker);
307 res = -PSICONV_E_PARSE;
308 break;
309 }
310 temp = psiconv_read_u8(buf,lev+2,off+len+datanr,&res);
311 if (res)
312 goto ERROR5;
313 if (decode_byte(lev+2,off+len+datanr,*result,&pixelnr,temp,
314 bits_per_pixel,linelen,&linepos,picsize)) {
315 res = -PSICONV_E_PARSE;
316 break;
317 }
318 }
319 } else {
320 if (datanr >= datasize) {
321 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data");
322 psiconv_debug(lev+3,off+len+datanr,
323 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
324 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr,
325 datanr,marker);
326 res = -PSICONV_E_PARSE;
327 } else {
328 temp = psiconv_read_u8(buf,lev+3,off+len+datanr,&res);
329 if (res)
330 goto ERROR5;
331 for (i = 0; i <= marker; i++) {
332 if (decode_byte(lev+2,off+len+datanr,*result,&pixelnr,temp,
333 bits_per_pixel,linelen,&linepos,picsize)) {
334 res = -PSICONV_E_PARSE;
335 break;
336 }
337 }
338 datanr ++;
339 }
340 }
341 }
342 }
343
344 if (linepos >= ((*result)->xsize + (8/bits_per_pixel) - 1) /
345 (8/bits_per_pixel))
346 datanr += (linelen - linepos);
347
348 if (res || (datanr != datasize) || (pixelnr != picsize)) {
349 psiconv_warn(lev+2,off+len,"Corrupted picture data!");
350 psiconv_debug(lev+3,off+len+datanr,
351 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
352 "Datanr: %08x",picsize,datasize,pixelnr,datanr);
353 goto ERROR5;
354 }
355
356 len += datanr;
357
358 if (length)
359 *length = len;
360
361 psiconv_progress(lev+1,off+len-1,"End of paint data section "
362 "(total length: %08x)", len);
363
364 return res;
365
366 ERROR5:
367 free((*result)->blue);
368 ERROR4:
369 free((*result)->green);
370 ERROR3:
371 free((*result)->red);
372 ERROR2:
373 free (*result);
374 ERROR1:
375 psiconv_warn(lev+1,off,"Reading of Paint Data Section failed");
376 if (length)
377 *length = 0;
378 if (!res)
379 return -PSICONV_E_NOMEM;
380 else
381 return res;
382 }
383
384 int psiconv_parse_sketch_section(const psiconv_buffer buf, int lev,
385 psiconv_u32 off, int *length, int is_object,
386 psiconv_sketch_section *result)
387 {
388 int res=0;
389 int len=0;
390 psiconv_u32 temp;
391 int leng;
392 int i;
393
394 psiconv_progress(lev+1,off,"Going to read the sketch section");
395 if (!(*result = malloc(sizeof(**result))))
396 goto ERROR1;
397
398 if (!is_object) {
399 psiconv_progress(lev+2,off+len,"Going to read the form hor. size");
400 (*result)->form_xsize = psiconv_read_u16(buf,lev+2,off + len,&res);
401 if (res)
402 goto ERROR2;
403 psiconv_debug(lev+2,off+len,"Form hor. size: %04x",
404 (*result)->form_xsize);
405 len += 0x02;
406 psiconv_progress(lev+2,off+len,"Going to read the form ver. size");
407 (*result)->form_ysize = psiconv_read_u16(buf,lev+2,off + len,&res);
408 if (res)
409 goto ERROR2;
410 psiconv_debug(lev+2,off+len,"Form ver. size: %04x",
411 (*result)->form_ysize);
412 len += 0x02;
413 psiconv_progress(lev+2,off+len,"Going to read the picture hor. offset");
414 (*result)->picture_x_offset = psiconv_read_u16(buf,lev+2,off + len,&res);
415 if (res)
416 goto ERROR2;
417 psiconv_debug(lev+2,off+len,"Picture hor. offset: %04x",
418 (*result)->picture_x_offset);
419 len += 0x02;
420 psiconv_progress(lev+2,off+len,"Going to read the picture ver. offset");
421 (*result)->picture_y_offset = psiconv_read_u16(buf,lev+2,off + len,&res);
422 if (res)
423 goto ERROR2;
424 psiconv_debug(lev+2,off+len,"Picture ver. offset: %04x",
425 (*result)->picture_y_offset);
426 len += 0x02;
427 psiconv_progress(lev+2,off+len,"Going to skip 5 words of zeros");
428 for (i = 0; i < 5; i++) {
429 temp = psiconv_read_u16(buf,lev+2,off+len,&res);
430 if (res)
431 goto ERROR2;
432 if (temp != 0) {
433 psiconv_warn(lev+2,off+len,
434 "Unexpected value in sketch section preamble (ignored)");
435 psiconv_debug(lev+2,off+len,"Word %d: Read %04x, expected %04x",i,
436 temp,0);
437 }
438 off += 0x02;
439 }
440 } else {
441 psiconv_progress(lev+2,off+len,"Going to read the displayed hor. size");
442 (*result)->picture_xsize = psiconv_read_u16(buf,lev+2,off + len,&res);
443 if (res)
444 goto ERROR2;
445 psiconv_debug(lev+2,off+len,"Displayed hor. size: %04x",
446 (*result)->picture_xsize);
447 len += 0x02;
448 psiconv_progress(lev+2,off+len,"Going to read the displayed ver. size");
449 (*result)->picture_ysize = psiconv_read_u16(buf,lev+2,off + len,&res);
450 if (res)
451 goto ERROR2;
452 psiconv_debug(lev+2,off+len,"Displayed ver. size: %04x",
453 (*result)->picture_ysize);
454 len += 0x02;
455
456 psiconv_progress(lev+2,off+len,"Going to skip 2 words of zeros");
457 for (i = 0; i < 2; i++) {
458 temp = psiconv_read_u16(buf,lev+2,off+len,&res);
459 if (res)
460 goto ERROR2;
461 if (temp != 0) {
462 psiconv_warn(lev+2,off+len,
463 "Unexpected value in sketch section preamble (ignored)");
464 psiconv_debug(lev+2,off+len,"Word %d: Read %04x, expected %04x",i,
465 temp,0);
466 }
467 off += 0x02;
468 }
469 psiconv_progress(lev+2,off+len,"Going to read the picture hor. offset");
470 (*result)->picture_x_offset = psiconv_read_u16(buf,lev+2,off + len,&res);
471 if (res)
472 goto ERROR2;
473 psiconv_debug(lev+2,off+len,"Picture hor. offset: %04x",
474 (*result)->picture_x_offset);
475 len += 0x02;
476 psiconv_progress(lev+2,off+len,"Going to read the picture ver. offset");
477 (*result)->picture_y_offset = psiconv_read_u16(buf,lev+2,off + len,&res);
478 if (res)
479 goto ERROR2;
480 psiconv_debug(lev+2,off+len,"Picture ver. offset: %04x",
481 (*result)->picture_y_offset);
482 len += 0x02;
483 psiconv_progress(lev+2,off+len,"Going to read the form hor. size");
484 (*result)->form_xsize = psiconv_read_u16(buf,lev+2,off + len,&res);
485 if (res)
486 goto ERROR2;
487 psiconv_debug(lev+2,off+len,"Form hor. size: %04x",
488 (*result)->form_xsize);
489 len += 0x02;
490 psiconv_progress(lev+2,off+len,"Going to read the form ver. size");
491 (*result)->form_ysize = psiconv_read_u16(buf,lev+2,off + len,&res);
492 if (res)
493 goto ERROR2;
494 psiconv_debug(lev+2,off+len,"Form ver. size: %04x",
495 (*result)->form_ysize);
496 len += 0x02;
497 psiconv_progress(lev+2,off+len,"Going to skip 1 zero word");
498 temp = psiconv_read_u16(buf,lev+2,off+len,&res);
499 if (res)
500 goto ERROR2;
501 if (temp != 0) {
502 psiconv_warn(lev+2,off+len,
503 "Unexpected value in sketch section preamble (ignored)");
504 psiconv_debug(lev+2,off+len,"Read %04x, expected %04x",i, temp,0);
505 }
506 off += 0x02;
507 }
508
509 psiconv_progress(lev+2,off+len,"Going to read the picture data");
510 if ((res = psiconv_parse_paint_data_section(buf,lev+2,off+len,&leng,0,
511 &((*result)->picture))))
512 goto ERROR2;
513 off += leng;
514 if (!is_object) {
515 (*result)->picture_xsize = (*result)->picture->xsize;
516 (*result)->picture_ysize = (*result)->picture->ysize;
517 }
518
519 psiconv_progress(lev+2,off+len,"Going to read the hor. magnification");
520 (*result)->magnification_x = psiconv_read_u16(buf,lev+2,off+len,&res)/1000.0;
521 if (res)
522 goto ERROR3;
523 psiconv_debug(lev+2,off+len,"Form hor. magnification: %f",
524 (*result)->magnification_x);
525 len += 0x02;
526 psiconv_progress(lev+2,off+len,"Going to read the ver. magnification");
527 (*result)->magnification_y = psiconv_read_u16(buf,lev+2,off+len,&res)/1000.0;
528 if (res)
529 goto ERROR3;
530 psiconv_debug(lev+2,off+len,"Form ver. magnification: %f",
531 (*result)->magnification_y);
532 len += 0x02;
533
534 psiconv_progress(lev+2,off+len,"Going to read the left cut");
535 temp = psiconv_read_u32(buf,lev+2,off + len,&res);
536 if (res)
537 goto ERROR3;
538 (*result)->cut_left = (temp * 6.0) / (*result)->picture_xsize;
539 psiconv_debug(lev+2,off+len,"Left cut: raw %08x, real: %f",
540 temp,(*result)->cut_left);
541 len += 0x04;
542 psiconv_progress(lev+2,off+len,"Going to read the right cut");
543 temp = psiconv_read_u32(buf,lev+2,off + len,&res);
544 if (res)
545 goto ERROR3;
546 (*result)->cut_right = (temp * 6.0) / (*result)->picture_xsize;
547 psiconv_debug(lev+2,off+len,"Right cut: raw %08x, real: %f",
548 temp,(*result)->cut_right);
549 len += 0x04;
550 psiconv_progress(lev+2,off+len,"Going to read the top cut");
551 temp = psiconv_read_u32(buf,lev+2,off + len,&res);
552 if (res)
553 goto ERROR3;
554 (*result)->cut_top = (temp * 6.0) / (*result)->picture_ysize;
555 psiconv_debug(lev+2,off+len,"Top cut: raw %08x, real: %f",
556 temp,(*result)->cut_top);
557 len += 0x04;
558 psiconv_progress(lev+2,off+len,"Going to read the bottom cut");
559 temp = psiconv_read_u32(buf,lev+2,off + len,&res);
560 if (res)
561 goto ERROR3;
562 (*result)->cut_bottom = (temp * 6.0) / (*result)->picture_ysize;
563 psiconv_debug(lev+2,off+len,"Bottom cut: raw %08x, real: %f",
564 temp,(*result)->cut_bottom);
565 len += 0x04;
566
567 if (length)
568 *length = len;
569
570 psiconv_progress(lev,off+len-1,
571 "End of sketch section (total length: %08x)", len);
572
573 return res;
574 ERROR3:
575 psiconv_free_paint_data_section((*result)->picture);
576 ERROR2:
577 free (*result);
578 ERROR1:
579 psiconv_warn(lev+1,off,"Reading of Sketch Section failed");
580 if (length)
581 *length = 0;
582 if (!res)
583 return -PSICONV_E_NOMEM;
584 else
585 return res;
586 }
587
588
589 int psiconv_parse_clipart_section(const psiconv_buffer buf,int lev,
590 psiconv_u32 off, int *length,
591 psiconv_clipart_section *result)
592 {
593 int res=0;
594 int len=0;
595 int leng;
596 psiconv_u32 temp;
597
598 psiconv_progress(lev+1,off+len,"Going to read the clipart section");
599 if (!(*result = malloc(sizeof(**result))))
600 goto ERROR1;
601
602 psiconv_progress(lev+2,off+len,"Going to read the section ID");
603 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
604 if (res)
605 goto ERROR2;
606 if (temp != PSICONV_ID_CLIPART_ITEM) {
607 psiconv_warn(lev+2,off+len,
608 "Unexpected value in clipart section preamble (ignored)");
609 psiconv_debug(lev+2,off+len,"Read %08x, expected %08x",temp,
610 PSICONV_ID_CLIPART_ITEM);
611 } else
612 psiconv_debug(lev+2,off+len,"Clipart ID: %08x", temp);
613 off += 4;
614
615 psiconv_progress(lev+2,off+len,"Going to read an unknown long");
616 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
617 if (res)
618 goto ERROR2;
619 if (temp != 0x02) {
620 psiconv_warn(lev+2,off+len,
621 "Unexpected value in clipart section preamble (ignored)");
622 psiconv_debug(lev+2,off+len,"Read %08x, expected %08x",temp,
623 0x02);
624 } else
625 psiconv_debug(lev+2,off+len,"First unknown long: %08x", temp);
626 off += 4;
627
628 psiconv_progress(lev+2,off+len,"Going to read a second unknown long");
629 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
630 if (res)
631 goto ERROR2;
632 if (temp != 0) {
633 psiconv_warn(lev+2,off+len,
634 "Unexpected value in clipart section preamble (ignored)");
635 psiconv_debug(lev+2,off+len,"Read %08x, expected %08x",temp, 0);
636 } else
637 psiconv_debug(lev+2,off+len,"Second unknown long: %08x", temp);
638 off += 4;
639
640 psiconv_progress(lev+2,off+len,"Going to read a third unknown long");
641 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
642 if (res)
643 goto ERROR2;
644 if (temp != 0) {
645 psiconv_warn(lev+2,off+len,
646 "Unexpected value in clipart section preamble (ignored)");
647 psiconv_debug(lev+2,off+len,"Read %08x, expected %08x",temp, 0);
648 } else
649 psiconv_debug(lev+2,off+len,"Third unknown long: %08x", temp);
650 off += 4;
651
652 psiconv_progress(lev+2,off+len,"Going to read a fourth unknown long");
653 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
654 if (res)
655 goto ERROR2;
656 if ((temp != 0x0c) && (temp != 0x08)) {
657 psiconv_warn(lev+2,off+len,
658 "Unexpected value in clipart section preamble (ignored)");
659 psiconv_debug(lev+2,off+len,"Read %08x, expected %08x or %08x",temp,
660 0x0c, 0x08);
661 } else
662 psiconv_debug(lev+2,off+len,"Fourth unknown long: %08x", temp);
663 off += 4;
664
665 psiconv_progress(lev+2,off+len,"Going to read the Paint Data Section");
666 if ((res = psiconv_parse_paint_data_section(buf,lev+2,off+len,&leng,1,
667 &((*result)->picture))))
668 goto ERROR2;
669 len += leng;
670
671 if (length)
672 *length = len;
673
674 psiconv_progress(lev,off+len-1,
675 "End of clipart section (total length: %08x)", len);
676 return 0;
677
678 ERROR2:
679 free (*result);
680 ERROR1:
681 psiconv_warn(lev+1,off,"Reading of Font failed");
682 if (length)
683 *length = 0;
684 if (!res)
685 return -PSICONV_E_NOMEM;
686 else
687 return res;
688 }

frodo@frodo.looijaard.name
ViewVC Help
Powered by ViewVC 1.1.26