/[public]/psiconv/trunk/lib/psiconv/parse_image.c
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Revision 10 Revision 97
1/* 1/*
2 parse_image.c - Part of psiconv, a PSION 5 file formats converter 2 parse_image.c - Part of psiconv, a PSION 5 file formats converter
3 Copyright (c) 1999 Frodo Looijaard <frodol@dds.nl> 3 Copyright (c) 1999, 2000 Frodo Looijaard <frodol@dds.nl>
4 4
5 This program is free software; you can redistribute it and/or modify 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 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 7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version. 8 (at your option) any later version.
… …
16 along with this program; if not, write to the Free Software 16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18*/ 18*/
19 19
20#include "config.h" 20#include "config.h"
21#include "compat.h"
22
21#include <stdlib.h> 23#include <stdlib.h>
22 24
23#include "data.h"
24#include "parse_routines.h" 25#include "parse_routines.h"
26#include "error.h"
27
28int psiconv_parse_jumptable_section(const psiconv_buffer buf,int lev,
29 psiconv_u32 off, int *length,
30 psiconv_jumptable_section *result)
31{
32 int res = 0;
33 int len = 0;
34 psiconv_u32 listlen,temp;
35 int i;
36
37 psiconv_progress(lev+1,off+len,"Going to read the jumptable section");
38 if (!((*result) = psiconv_list_new(sizeof(psiconv_u32))))
39 goto ERROR1;
40
41 psiconv_progress(lev+2,off+len,"Going to read the list length");
42 listlen = psiconv_read_u32(buf,lev+2,off+len,&res);
43 if (res)
44 goto ERROR2;
45 psiconv_debug(lev+2,off+len,"List length: %08x",listlen);
46 len += 4;
47
48 psiconv_progress(lev+2,off+len,"Going to read the list");
49 for (i = 0; i < listlen; i++) {
50 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
51 if (res)
52 goto ERROR2;
53 if ((res = psiconv_list_add(*result,&temp)))
54 goto ERROR2;
55 psiconv_debug(lev+3,off+len,"Offset: %08x",temp);
56 len += 4;
57 }
58
59 if (length)
60 *length = len;
61
62 psiconv_progress(lev+1,off+len-1,"End of jumptable section "
63 "(total length: %08x)", len);
64
65 return 0;
66
67ERROR2:
68 psiconv_list_free(*result);
69ERROR1:
70 psiconv_warn(lev+1,off,"Reading of Jumptable Section failed");
71 if (length)
72 *length = 0;
73 if (!res)
74 return -PSICONV_E_NOMEM;
75 else
76 return res;
77}
78
79static int decode_byte(int lev, psiconv_u32 off,
80 psiconv_paint_data_section data, psiconv_u32 *pixelnr,
81 psiconv_u8 byte, int bits_per_pixel, int linelen,
82 int *linepos,int picsize)
83{
84 int mask = (bits_per_pixel << 1) -1;
85 int i;
86 if (*linepos < (data->xsize + (8/bits_per_pixel) - 1) / (8/bits_per_pixel))
87 for (i = 0; i < 8/bits_per_pixel; i ++) {
88 if ((i != 0) && ((*pixelnr % (data->xsize)) == 0)) {
89 psiconv_debug(lev+1,off,"Skipping padding: %02x",byte);
90 i = 8;
91 } else if (*pixelnr >= picsize) {
92 psiconv_warn(lev+1,off,"Corrupted picture data!");
93 psiconv_debug(lev+1,off,"Trying to write a pixel too far");
94 return -1;
95 } else {
96 data->red[*pixelnr] = data->green[*pixelnr] = data->blue[*pixelnr] =
97 ((float) (byte & mask)) / ((1 << bits_per_pixel) -1);
98 psiconv_debug(lev+1,off,"Pixel %04x: (%04x,%04x) value %02x, color %f",
99 *pixelnr,*pixelnr % data->xsize,
100 *pixelnr / data->xsize, byte&mask, data->red[*pixelnr]);
101 byte = byte >> bits_per_pixel;
102 (*pixelnr) ++;
103 }
104 }
105 else
106 psiconv_debug(lev+1,off,"Skipping padding byte");
107 (*linepos) ++;
108 if (*linepos == linelen)
109 *linepos = 0;
110 return 0;
111}
112
25 113
26int psiconv_parse_paint_data_section(const psiconv_buffer buf,int lev, 114int psiconv_parse_paint_data_section(const psiconv_buffer buf,int lev,
27 psiconv_u32 off, int *length, 115 psiconv_u32 off, int *length,int isclipart,
28 psiconv_paint_data_section *result) 116 psiconv_paint_data_section *result)
29{ 117{
30 int res = 0; 118 int res = 0;
31 int len = 0; 119 int len = 0;
32 psiconv_u32 size; 120 psiconv_u32 size,offset,picsize,temp,datasize,pixelnr,datanr,linelen;
121 psiconv_u8 marker;
33 int leng; 122 int i,leng;
123 psiconv_u32 bits_per_pixel,compression;
124 int linepos = 0;
34 125
35 psiconv_progress(lev+1,off,"Going to read a paint data section"); 126 psiconv_progress(lev+1,off,"Going to read a paint data section");
36 (*result) = malloc(sizeof(**result)); 127 if (!((*result) = malloc(sizeof(**result))))
128 goto ERROR1;
37 129
38 psiconv_progress(lev+2,off+len,"Going to read section size"); 130 psiconv_progress(lev+2,off+len,"Going to read section size");
39 size = psiconv_read_u32(buf,lev+2,off+len); 131 size = psiconv_read_u32(buf,lev+2,off+len,&res);
132 if (res)
133 goto ERROR2;
40 psiconv_debug(lev+2,off+len,"Section size: %08x",size); 134 psiconv_debug(lev+2,off+len,"Section size: %08x",size);
41 len += 4; 135 len += 4;
42 136
43 psiconv_progress(lev+2,off+len,"Going to read pixel data offset"); 137 psiconv_progress(lev+2,off+len,"Going to read pixel data offset");
44 offset = psiconv_read_u32(buf,lev+2,off+len); 138 offset = psiconv_read_u32(buf,lev+2,off+len,&res);
139 if (res)
140 goto ERROR2;
45 if (size != 0x28) { 141 if (offset != 0x28) {
46 psiconv_warn(lev+2,off+len, 142 psiconv_warn(lev+2,off+len,
47 "Paint data section data offset has unexpected value"); 143 "Paint data section data offset has unexpected value");
48 psiconv_debug(lev+2,off+len, 144 psiconv_debug(lev+2,off+len,
49 "Data offset: read %08x, expected %08x",offset,0x28); 145 "Data offset: read %08x, expected %08x",offset,0x28);
146 res = -1;
50 } 147 }
51 len += 4; 148 len += 4;
52 149
53 psiconv_progress(lev+2,off+len,"Going to read picture X size"); 150 psiconv_progress(lev+2,off+len,"Going to read picture X size");
54 (*result)->xsize = psiconv_read_u32(buf,lev+2,off+len); 151 (*result)->xsize = psiconv_read_u32(buf,lev+2,off+len,&res);
152 if (res)
153 goto ERROR2;
55 psiconv_debug(lev+2,off+len,"Picture X size: %08x:",(*result)->xsize); 154 psiconv_debug(lev+2,off+len,"Picture X size: %08x:",(*result)->xsize);
56 len += 4; 155 len += 4;
57 156
58 psiconv_progress(lev+2,off+len,"Going to read picture Y size"); 157 psiconv_progress(lev+2,off+len,"Going to read picture Y size");
59 (*result)->ysize = psiconv_read_u32(buf,lev+2,off+len); 158 (*result)->ysize = psiconv_read_u32(buf,lev+2,off+len,&res);
159 if (res)
160 goto ERROR2;
60 psiconv_debug(lev+2,off+len,"Picture Y size: %08x:",(*result)->ysize); 161 psiconv_debug(lev+2,off+len,"Picture Y size: %08x:",(*result)->ysize);
61 len += 4; 162 len += 4;
62 163
63 picsize = (*result)->ysize * (*result)->xsize; 164 picsize = (*result)->ysize * (*result)->xsize;
64 165
65 psiconv_progress("Going to read 6 unused longs"); 166 psiconv_progress(lev+2,off+len,"Going to read the real picture x size");
167 (*result)->pic_xsize = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
168 if (res)
169 goto ERROR2;
170 psiconv_debug(lev+2,off+len,"Picture x size: %f",(*result)->pic_xsize);
171 len += leng;
172
173 psiconv_progress(lev+2,off+len,"Going to read the real picture y size");
174 (*result)->pic_ysize = psiconv_read_length(buf,lev+2,off+len,&leng,&res);
175 if (res)
176 goto ERROR2;
177 psiconv_debug(lev+2,off+len,"Picture y size: %f",(*result)->pic_ysize);
178 len += leng;
179
180 psiconv_progress(lev+2,off+len,"Going to read the number of bits per pixel");
181 bits_per_pixel=psiconv_read_u32(buf,lev+2,off+len,&res);
182 if (res)
183 goto ERROR2;
184 if (bits_per_pixel > 8) {
185 psiconv_warn(lev+2,off+len,"Picture has too many colors");
186 psiconv_debug(lev+2,off+len,"Read %d colorbits",bits_per_pixel);
187 res = -PSICONV_E_PARSE;
188 goto ERROR2;
189 }
190 psiconv_debug(lev+2,off+len,"Bits per pixel: %d",bits_per_pixel);
191 len += 4;
192
66 for (i = 0 ; i < 6; i++) { 193 for (i = 0 ; i < 2; i++) {
67 temp = psiconv_read_u32(buf,lev+2,off+len); 194 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
195 if (res)
196 goto ERROR2;
68 if (temp != 0x00) { 197 if (temp != 00) {
69 psiconv_warn(lev+2,off+len, 198 psiconv_warn(lev+2,off+len,
70 "Paint data section prologue has unknown values"); 199 "Paint data section prologue has unknown values (ignored)");
71 psiconv_debug(lev+2,off+len, 200 psiconv_debug(lev+2,off+len,
72 "offset %02x: read %08x, expected %08x",i,temp,0x00); 201 "offset %02x: read %08x, expected %08x",i,temp, 0x00);
73 } 202 }
74 len += 4; 203 len += 4;
75 } 204 }
205
206 psiconv_progress(lev+2,off+len,
207 "Going to read whether RLE compression is used");
208 compression=psiconv_read_u32(buf,lev+2,off+len,&res);
209 if (res)
210 goto ERROR2;
211 if (compression > 1) {
212 psiconv_warn(lev+2,off+len,"Paint data section has unknown "
213 "compression type, assuming RLE");
214 psiconv_debug(lev+2,off+len,"Read compression type %d",compression);
215 compression = 1;
216 }
217 psiconv_debug(lev+2,off+len,"Compression: %s",compression?"RLE":"none");
218 len += 4;
76 219
220 if (isclipart) {
221 psiconv_progress(lev+2,off+len,"Going to read an unknown long");
222 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
223 if (res)
224 goto ERROR2;
225 if (temp != 0xffffffff) {
226 psiconv_warn(lev+2,off+len,
227 "Paint data section prologue has unknown values (ignoring)");
228 psiconv_debug(lev+2,off+len,
229 "offset %02x: read %08x, expected %08x",i,temp, 0xffffffff);
230 }
231 len += 4;
232 psiconv_progress(lev+2,off+len,"Going to read a second unknown long");
233 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
234 if (res)
235 goto ERROR2;
236 if (temp != 0x44) {
237 psiconv_warn(lev+2,off+len,
238 "Paint data section prologue has unknown values (ignoring)");
239 psiconv_debug(lev+2,off+len,
240 "offset %02x: read %08x, expected %08x",i,temp, 0x44);
241 }
242 len += 4;
243 }
244
77 (*result)->red = malloc(sizeof(float) * picsize); 245 if (!((*result)->red = malloc(sizeof(float) * picsize)))
246 goto ERROR2;
78 (*result)->green = malloc(sizeof(float) * picsize); 247 if (!((*result)->green = malloc(sizeof(float) * picsize)))
248 goto ERROR3;
79 (*result)->blue = malloc(sizeof(float) * picsize); 249 if (!((*result)->blue = malloc(sizeof(float) * picsize)))
250 goto ERROR4;
80 len = offset; 251 len = offset;
81 datasize = size - len; 252 datasize = size - len;
253 if (isclipart)
254 len += 8;
82 255
83 psiconv_progress(buf,lev+2,off+len,"Going to read the pixel data"); 256 psiconv_progress(lev+2,off+len,"Going to read the pixel data");
84 pixelnr = 0; 257 pixelnr = 0;
85 datanr = 0; 258 datanr = 0;
86 while ((datanr < datasize) && (pixelnr < picsize)) { 259 if (!compression) {
260 linelen = datasize / (*result)->ysize;
261 psiconv_debug(lev+3,off+len,"Line length: %04x bytes",linelen);
262 while((datanr < datasize)) {
263 temp = psiconv_read_u8(buf,lev+2,off+len+datanr,&res);
264 if (res)
265 goto ERROR5;
266 if (decode_byte(lev+3,off+len+datanr,*result,&pixelnr,temp,bits_per_pixel,
267 linelen,&linepos,picsize)) {
268 res = -PSICONV_E_PARSE;
269 break;
270 }
271 datanr++;
272 }
273 } else {
274 psiconv_progress(lev+2,off+len,"First pass: determining line length");
275 datanr = 0;
276 i = 0;
277 while (datanr < datasize) {
87 marker = psiconv_read_u8(buf,lev+3,off+len+datanr); 278 marker = psiconv_read_u8(buf,lev+3,off+len+datanr,&res);
279 if (res)
280 goto ERROR5;
281 if (marker >= 0x80) {
282 datanr += 0x100 - marker + 1;
283 i += 0x100 - marker;
284 } else {
285 datanr += 2;
286 i += marker + 1;
287 }
288 }
289 linelen = i / (*result)->ysize;
290 datanr=0;
291 psiconv_debug(lev+2,off+len,"Linelen: %04x bytes",linelen);
292 while((datanr < datasize)) {
293 marker = psiconv_read_u8(buf,lev+3,off+len+datanr,&res);
294 if (res)
295 goto ERROR5;
296 psiconv_debug(lev+3,off+len+datanr,
297 "Pixelnr %08x, Datanr %08x: Read marker %02x",
298 pixelnr,datanr,marker);
299 datanr ++;
300 if (marker >= 0x80) {
301 /* 0x100 - marker bytes of data follow */
302 for (i = 0; i < 0x100-marker; i++,datanr++) {
303 if (datanr >= datasize) {
304 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data");
305 psiconv_debug(lev+3,off+len+datanr,
306 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
307 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr,
308 datanr,marker);
309 res = -PSICONV_E_PARSE;
310 break;
311 }
312 temp = psiconv_read_u8(buf,lev+2,off+len+datanr,&res);
313 if (res)
314 goto ERROR5;
315 if (decode_byte(lev+2,off+len+datanr,*result,&pixelnr,temp,
316 bits_per_pixel,linelen,&linepos,picsize)) {
317 res = -PSICONV_E_PARSE;
318 break;
319 }
320 }
321 } else {
322 if (datanr >= datasize) {
323 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data");
324 psiconv_debug(lev+3,off+len+datanr,
325 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
326 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr,
327 datanr,marker);
328 res = -PSICONV_E_PARSE;
329 } else {
330 temp = psiconv_read_u8(buf,lev+3,off+len+datanr,&res);
331 if (res)
332 goto ERROR5;
333 for (i = 0; i <= marker; i++) {
334 if (decode_byte(lev+2,off+len+datanr,*result,&pixelnr,temp,
335 bits_per_pixel,linelen,&linepos,picsize)) {
336 res = -PSICONV_E_PARSE;
337 break;
338 }
339 }
340 datanr ++;
341 }
342 }
343 }
344 }
345
346 if (linepos >= ((*result)->xsize + (8/bits_per_pixel) - 1) /
347 (8/bits_per_pixel))
348 datanr += (linelen - linepos);
349
350 if (res || (datanr != datasize) || (pixelnr != picsize)) {
351 psiconv_warn(lev+2,off+len,"Corrupted picture data!");
88 psiconv_debug(lev+3,off+len+datanr, 352 psiconv_debug(lev+3,off+len+datanr,
89 "Pixelnr %08x, Datanr %08x: Read marker %02x",
90 pixelnr,datanr,marker);
91 datanr ++;
92 if (marker >= 0x80) {
93 /* 0x100 - marker bytes of data follow */
94 if ((0x100 - marker + datanr > datasize) ||
95 ((0x100 - marker) * 4 + pixelnr > picsize)) {
96 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data");
97 psiconv_debug(lev+3,off+len+datanr,
98 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x," 353 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
99 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr, 354 "Datanr: %08x",picsize,datasize,pixelnr,datanr);
100 datanr,marker); 355 goto ERROR5;
101 } else { 356 }
357
358 len += datanr;
359
360 if (length)
361 *length = len;
362
363 psiconv_progress(lev+1,off+len-1,"End of paint data section "
364 "(total length: %08x)", len);
365
366 return res;
367
368ERROR5:
369 free((*result)->blue);
370ERROR4:
371 free((*result)->green);
372ERROR3:
373 free((*result)->red);
374ERROR2:
375 free (*result);
376ERROR1:
377 psiconv_warn(lev+1,off,"Reading of Paint Data Section failed");
378 if (length)
379 *length = 0;
380 if (!res)
381 return -PSICONV_E_NOMEM;
382 else
383 return res;
384}
385
386int psiconv_parse_sketch_section(const psiconv_buffer buf, int lev,
387 psiconv_u32 off, int *length, int is_object,
388 psiconv_sketch_section *result)
389{
390 int res=0;
391 int len=0;
392 psiconv_u32 temp;
393 int leng;
394 int i;
395
396 psiconv_progress(lev+1,off,"Going to read the sketch section");
397 if (!(*result = malloc(sizeof(**result))))
398 goto ERROR1;
399
400 if (!is_object) {
401 psiconv_progress(lev+2,off+len,"Going to read the form hor. size");
402 (*result)->form_xsize = psiconv_read_u16(buf,lev+2,off + len,&res);
403 if (res)
404 goto ERROR2;
405 psiconv_debug(lev+2,off+len,"Form hor. size: %04x",
406 (*result)->form_xsize);
407 len += 0x02;
408 psiconv_progress(lev+2,off+len,"Going to read the form ver. size");
409 (*result)->form_ysize = psiconv_read_u16(buf,lev+2,off + len,&res);
410 if (res)
411 goto ERROR2;
412 psiconv_debug(lev+2,off+len,"Form ver. size: %04x",
413 (*result)->form_ysize);
414 len += 0x02;
415 psiconv_progress(lev+2,off+len,"Going to read the picture hor. offset");
416 (*result)->picture_x_offset = psiconv_read_u16(buf,lev+2,off + len,&res);
417 if (res)
418 goto ERROR2;
419 psiconv_debug(lev+2,off+len,"Picture hor. offset: %04x",
420 (*result)->picture_x_offset);
421 len += 0x02;
422 psiconv_progress(lev+2,off+len,"Going to read the picture ver. offset");
423 (*result)->picture_y_offset = psiconv_read_u16(buf,lev+2,off + len,&res);
424 if (res)
425 goto ERROR2;
426 psiconv_debug(lev+2,off+len,"Picture ver. offset: %04x",
427 (*result)->picture_y_offset);
428 len += 0x02;
429 psiconv_progress(lev+2,off+len,"Going to skip 5 words of zeros");
102 for (i = 0; i < 0x100-marker; i++) { 430 for (i = 0; i < 5; i++) {
103 temp = psiconv_read_u8(buf,lev+3,off+len+datanr+i); 431 temp = psiconv_read_u16(buf,lev+2,off+len,&res);
104 (*result)->red[pixelnr + i*4] = 432 if (res)
105 (*result)->green[pixelnr + i*4] = 433 goto ERROR2;
106 (*result)->blue[pixelnr + i*4] = 434 if (temp != 0) {
107 (temp & 0x03) * (1.0/3.0); 435 psiconv_warn(lev+2,off+len,
108 (*result)->red[pixelnr + i*4 + 1] = 436 "Unexpected value in sketch section preamble (ignored)");
109 (*result)->green[pixelnr + i*4 +1] = 437 psiconv_debug(lev+2,off+len,"Word %d: Read %04x, expected %04x",i,
110 (*result)->blue[pixelnr + i*4 + 1] = 438 temp,0);
111 ((temp >> 2) & 0x03) * (1.0/3.0);
112 (*result)->red[pixelnr + i*4 + 2] =
113 (*result)->green[pixelnr + i*4 +2] =
114 (*result)->blue[pixelnr + i*4 + 2] =
115 ((temp >> 4) & 0x03) * (1.0/3.0);
116 (*result)->red[pixelnr + i*4 + 3] =
117 (*result)->green[pixelnr + i*4 +3] =
118 (*result)->blue[pixelnr + i*4 + 3] =
119 ((temp >> 6) & 0x03) * (1.0/3.0);
120 }
121 } 439 }
122 pixelnr += (0x100 - marker) * 4; 440 off += 0x02;
123 datanr += (0x100 - marker); 441 }
124 } else { /* marker < 0x080 */
125 if ((datanr + 1 > datasize) ||
126 (marker * 4 + pixelnr > picsize)) {
127 psiconv_warn(lev+3,off+len+datanr,"Corrupted picture data");
128 psiconv_debug(lev+3,off+len+datanr,
129 "Picsize: %08x, Datasize: %08x, Pixelnr: %08x,"
130 "Datanr: %08x, marker: %02x",picsize,datasize,pixelnr,
131 datanr,marker);
132 } else { 442 } else {
443 psiconv_progress(lev+2,off+len,"Going to read the displayed hor. size");
444 (*result)->picture_xsize = psiconv_read_u16(buf,lev+2,off + len,&res);
445 if (res)
446 goto ERROR2;
447 psiconv_debug(lev+2,off+len,"Displayed hor. size: %04x",
448 (*result)->picture_xsize);
449 len += 0x02;
450 psiconv_progress(lev+2,off+len,"Going to read the displayed ver. size");
451 (*result)->picture_ysize = psiconv_read_u16(buf,lev+2,off + len,&res);
452 if (res)
453 goto ERROR2;
454 psiconv_debug(lev+2,off+len,"Displayed ver. size: %04x",
455 (*result)->picture_ysize);
456 len += 0x02;
457
458 psiconv_progress(lev+2,off+len,"Going to skip 2 words of zeros");
459 for (i = 0; i < 2; i++) {
133 temp = psiconv_read_u8(buf,lev+3,off+len+datanr); 460 temp = psiconv_read_u16(buf,lev+2,off+len,&res);
134 for (i = 0; i < marker; i++) { 461 if (res)
135 (*result)->red[pixelnr + i*4] = 462 goto ERROR2;
136 (*result)->green[pixelnr + i*4] = 463 if (temp != 0) {
137 (*result)->blue[pixelnr + i*4] = 464 psiconv_warn(lev+2,off+len,
138 (temp & 0x03) * (1.0/3.0); 465 "Unexpected value in sketch section preamble (ignored)");
139 (*result)->red[pixelnr + i*4 + 1] = 466 psiconv_debug(lev+2,off+len,"Word %d: Read %04x, expected %04x",i,
140 (*result)->green[pixelnr + i*4 +1] = 467 temp,0);
141 (*result)->blue[pixelnr + i*4 + 1] =
142 ((temp >> 2) & 0x03) * (1.0/3.0);
143 (*result)->red[pixelnr + i*4 + 2] =
144 (*result)->green[pixelnr + i*4 +2] =
145 (*result)->blue[pixelnr + i*4 + 2] =
146 ((temp >> 4) & 0x03) * (1.0/3.0);
147 (*result)->red[pixelnr + i*4 + 3] =
148 (*result)->green[pixelnr + i*4 +3] =
149 (*result)->blue[pixelnr + i*4 + 3] =
150 ((temp >> 6) & 0x03) * (1.0/3.0);
151 }
152 } 468 }
153 pixelnr += marker * 4; 469 off += 0x02;
154 datanr += 1; 470 }
471 psiconv_progress(lev+2,off+len,"Going to read the picture hor. offset");
472 (*result)->picture_x_offset = psiconv_read_u16(buf,lev+2,off + len,&res);
473 if (res)
474 goto ERROR2;
475 psiconv_debug(lev+2,off+len,"Picture hor. offset: %04x",
476 (*result)->picture_x_offset);
477 len += 0x02;
478 psiconv_progress(lev+2,off+len,"Going to read the picture ver. offset");
479 (*result)->picture_y_offset = psiconv_read_u16(buf,lev+2,off + len,&res);
480 if (res)
481 goto ERROR2;
482 psiconv_debug(lev+2,off+len,"Picture ver. offset: %04x",
483 (*result)->picture_y_offset);
484 len += 0x02;
485 psiconv_progress(lev+2,off+len,"Going to read the form hor. size");
486 (*result)->form_xsize = psiconv_read_u16(buf,lev+2,off + len,&res);
487 if (res)
488 goto ERROR2;
489 psiconv_debug(lev+2,off+len,"Form hor. size: %04x",
490 (*result)->form_xsize);
491 len += 0x02;
492 psiconv_progress(lev+2,off+len,"Going to read the form ver. size");
493 (*result)->form_ysize = psiconv_read_u16(buf,lev+2,off + len,&res);
494 if (res)
495 goto ERROR2;
496 psiconv_debug(lev+2,off+len,"Form ver. size: %04x",
497 (*result)->form_ysize);
498 len += 0x02;
499 psiconv_progress(lev+2,off+len,"Going to skip 1 zero word");
500 temp = psiconv_read_u16(buf,lev+2,off+len,&res);
501 if (res)
502 goto ERROR2;
503 if (temp != 0) {
504 psiconv_warn(lev+2,off+len,
505 "Unexpected value in sketch section preamble (ignored)");
506 psiconv_debug(lev+2,off+len,"Read %04x, expected %04x",i, temp,0);
507 }
508 off += 0x02;
155 } 509 }
510
511 psiconv_progress(lev+2,off+len,"Going to read the picture data");
512 if ((res = psiconv_parse_paint_data_section(buf,lev+2,off+len,&leng,0,
513 &((*result)->picture))))
514 goto ERROR2;
515 off += leng;
516 if (!is_object) {
517 (*result)->picture_xsize = (*result)->picture->xsize;
518 (*result)->picture_ysize = (*result)->picture->ysize;
519 }
156 } 520
157 len += datanr; 521 psiconv_progress(lev+2,off+len,"Going to read the hor. magnification");
522 (*result)->magnification_x = psiconv_read_u16(buf,lev+2,off+len,&res)/1000.0;
523 if (res)
524 goto ERROR3;
525 psiconv_debug(lev+2,off+len,"Form hor. magnification: %f",
526 (*result)->magnification_x);
527 len += 0x02;
528 psiconv_progress(lev+2,off+len,"Going to read the ver. magnification");
529 (*result)->magnification_y = psiconv_read_u16(buf,lev+2,off+len,&res)/1000.0;
530 if (res)
531 goto ERROR3;
532 psiconv_debug(lev+2,off+len,"Form ver. magnification: %f",
533 (*result)->magnification_y);
534 len += 0x02;
158 535
536 psiconv_progress(lev+2,off+len,"Going to read the left cut");
537 temp = psiconv_read_u32(buf,lev+2,off + len,&res);
538 if (res)
539 goto ERROR3;
540 (*result)->cut_left = (temp * 6.0) / (*result)->picture_xsize;
541 psiconv_debug(lev+2,off+len,"Left cut: raw %08x, real: %f",
542 temp,(*result)->cut_left);
543 len += 0x04;
544 psiconv_progress(lev+2,off+len,"Going to read the right cut");
545 temp = psiconv_read_u32(buf,lev+2,off + len,&res);
546 if (res)
547 goto ERROR3;
548 (*result)->cut_right = (temp * 6.0) / (*result)->picture_xsize;
549 psiconv_debug(lev+2,off+len,"Right cut: raw %08x, real: %f",
550 temp,(*result)->cut_right);
551 len += 0x04;
552 psiconv_progress(lev+2,off+len,"Going to read the top cut");
553 temp = psiconv_read_u32(buf,lev+2,off + len,&res);
554 if (res)
555 goto ERROR3;
556 (*result)->cut_top = (temp * 6.0) / (*result)->picture_ysize;
557 psiconv_debug(lev+2,off+len,"Top cut: raw %08x, real: %f",
558 temp,(*result)->cut_top);
559 len += 0x04;
560 psiconv_progress(lev+2,off+len,"Going to read the bottom cut");
561 temp = psiconv_read_u32(buf,lev+2,off + len,&res);
562 if (res)
563 goto ERROR3;
564 (*result)->cut_bottom = (temp * 6.0) / (*result)->picture_ysize;
565 psiconv_debug(lev+2,off+len,"Bottom cut: raw %08x, real: %f",
566 temp,(*result)->cut_bottom);
567 len += 0x04;
568
159 if (length) 569 if (length)
160 *length = len; 570 *length = len;
161 571
162 psiconv_progress(lev+1,off+len-1,"End of paint data section " 572 psiconv_progress(lev,off+len-1,
163 "(total length: %08x", len); 573 "End of sketch section (total length: %08x)", len);
164 574
165 return res; 575 return res;
576ERROR3:
577 psiconv_free_paint_data_section((*result)->picture);
578ERROR2:
579 free (*result);
580ERROR1:
581 psiconv_warn(lev+1,off,"Reading of Sketch Section failed");
582 if (length)
583 *length = 0;
584 if (!res)
585 return -PSICONV_E_NOMEM;
586 else
587 return res;
166} 588}
167 589
168 590
591int psiconv_parse_clipart_section(const psiconv_buffer buf,int lev,
592 psiconv_u32 off, int *length,
593 psiconv_clipart_section *result)
594{
595 int res=0;
596 int len=0;
597 int leng;
598 psiconv_u32 temp;
599
600 psiconv_progress(lev+1,off+len,"Going to read the clipart section");
601 if (!(*result = malloc(sizeof(**result))))
602 goto ERROR1;
603
604 psiconv_progress(lev+2,off+len,"Going to read the section ID");
605 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
606 if (res)
607 goto ERROR2;
608 if (temp != PSICONV_ID_CLIPART_ITEM) {
609 psiconv_warn(lev+2,off+len,
610 "Unexpected value in clipart section preamble (ignored)");
611 psiconv_debug(lev+2,off+len,"Read %08x, expected %08x",temp,
612 PSICONV_ID_CLIPART_ITEM);
613 } else
614 psiconv_debug(lev+2,off+len,"Clipart ID: %08x", temp);
615 off += 4;
616
617 psiconv_progress(lev+2,off+len,"Going to read an unknown long");
618 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
619 if (res)
620 goto ERROR2;
621 if (temp != 0x02) {
622 psiconv_warn(lev+2,off+len,
623 "Unexpected value in clipart section preamble (ignored)");
624 psiconv_debug(lev+2,off+len,"Read %08x, expected %08x",temp,
625 0x02);
626 } else
627 psiconv_debug(lev+2,off+len,"First unknown long: %08x", temp);
628 off += 4;
629
630 psiconv_progress(lev+2,off+len,"Going to read a second unknown long");
631 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
632 if (res)
633 goto ERROR2;
634 if (temp != 0) {
635 psiconv_warn(lev+2,off+len,
636 "Unexpected value in clipart section preamble (ignored)");
637 psiconv_debug(lev+2,off+len,"Read %08x, expected %08x",temp, 0);
638 } else
639 psiconv_debug(lev+2,off+len,"Second unknown long: %08x", temp);
640 off += 4;
641
642 psiconv_progress(lev+2,off+len,"Going to read a third unknown long");
643 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
644 if (res)
645 goto ERROR2;
646 if (temp != 0) {
647 psiconv_warn(lev+2,off+len,
648 "Unexpected value in clipart section preamble (ignored)");
649 psiconv_debug(lev+2,off+len,"Read %08x, expected %08x",temp, 0);
650 } else
651 psiconv_debug(lev+2,off+len,"Third unknown long: %08x", temp);
652 off += 4;
653
654 psiconv_progress(lev+2,off+len,"Going to read a fourth unknown long");
655 temp = psiconv_read_u32(buf,lev+2,off+len,&res);
656 if (res)
657 goto ERROR2;
658 if ((temp != 0x0c) && (temp != 0x08)) {
659 psiconv_warn(lev+2,off+len,
660 "Unexpected value in clipart section preamble (ignored)");
661 psiconv_debug(lev+2,off+len,"Read %08x, expected %08x or %08x",temp,
662 0x0c, 0x08);
663 } else
664 psiconv_debug(lev+2,off+len,"Fourth unknown long: %08x", temp);
665 off += 4;
666
667 psiconv_progress(lev+2,off+len,"Going to read the Paint Data Section");
668 if ((res = psiconv_parse_paint_data_section(buf,lev+2,off+len,&leng,1,
669 &((*result)->picture))))
670 goto ERROR2;
671 len += leng;
672
673 if (length)
674 *length = len;
675
676 psiconv_progress(lev,off+len-1,
677 "End of clipart section (total length: %08x)", len);
678 return 0;
679
680ERROR2:
681 free (*result);
682ERROR1:
683 psiconv_warn(lev+1,off,"Reading of Font failed");
684 if (length)
685 *length = 0;
686 if (!res)
687 return -PSICONV_E_NOMEM;
688 else
689 return res;
690}
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