source: trunk/JPGPROC/source/gbmsrc/gbmpsg.c@ 41

Last change on this file since 41 was 2, checked in by stevenhl, 8 years ago

Import sources from cwmm-full.zip dated 2005-03-21
File size: 14.7 KB
Line 
1/*
2
3gbmpsg.c - PSEG support
4
5Reads and writes PSEG files.
6Input options: fixrec (attempt to handle corrupt record structure)
7Output options: scalex=#, scaley=# (default is 1000)
8Output options: double (will double scale factors in header).
9Output options: pelx=#,pely=# (default is 2400).
10
11This code was written using a subset of the full documentation.
12The missing bits were filled in by reverse engineering a selection of files.
13Guesses as to which records are important were made (BeginPageSegment etc.)
14and these seem to correspond with other conversion programs choices.
15Also image (and cell) widths and heights can apparently be any value, although
16all PSEGs I have seen always use a multiple of 8 (and 32). This code will allow
17any width that is a multiple of 8 (for easy coding), and any height at all.
18
19When a PSEG is uploaded to VM, it must have its VM FILE block record structure
20reestablished. Various VM EXECs exist to do this, such as FIXL3820, REFLOW, and
21REST38PP, although in my experience, FIXL3820 always works, and REST38PP always
22fails for large files.
23
24*/
25
26/*...sincludes:0:*/
27#include <stdio.h>
28#include <ctype.h>
29#include <stddef.h>
30#include <stdlib.h>
31#include <string.h>
32#include "gbm.h"
33#include "gbmhelp.h"
34
35/*...vgbm\46\h:0:*/
36/*...vgbmhelp\46\h:0:*/
37
38#ifndef min
39#define min(a,b) (((a)<(b))?(a):(b))
40#endif
41/*...e*/
42
43/*...suseful:0:*/
44#define low_byte(w) ((byte) ((w)&0x00ff) )
45#define high_byte(w) ((byte) (((w)&0xff00)>>8))
46#define make_word(a,b) (((word)a) + (((word)b) << 8))
47/*...e*/
48
49static GBMFT psg_gbmft =
50 {
51 "PSEG",
52 "IBM Printer Page Segment",
53 "PSE PSEG PSEG38PP PSEG3820",
54 GBM_FT_R1|
55 GBM_FT_W1,
56 };
57
58#define GBM_ERR_PSEG_NOT_5A ((GBM_ERR) 1600)
59#define GBM_ERR_PSEG_BAD_RECORD ((GBM_ERR) 1601)
60#define GBM_ERR_PSEG_SIZE ((GBM_ERR) 1602)
61#define GBM_ERR_PSEG_INV_WIDTH ((GBM_ERR) 1603)
62#define GBM_ERR_PSEG_INV_DEFCEL ((GBM_ERR) 1604)
63#define GBM_ERR_PSEG_INV_CEL ((GBM_ERR) 1605)
64#define GBM_ERR_PSEG_INV_CELPOS ((GBM_ERR) 1606)
65#define GBM_ERR_PSEG_UNEX_REC ((GBM_ERR) 1607)
66
67typedef struct
68 {
69 long pos;
70 int xcellsizedef, ycellsizedef;
71 BOOLEAN fix_badrec;
72 } PSEG_PRIV;
73
74/*...smax:0:*/
75#ifndef max
76#define max(a,b) (((a)>(b))?(a):(b))
77#endif
78/*...e*/
79/*...sascii \47\ ebcdic:0:*/
80#ifdef NEVER
81/*...sebcdic_to_ascii:0:*/
82static byte ebcdic_to_ascii[0x100] =
83 {
84 0x00,0x01,0x02,0x03,0xcf,0x09,0xd3,0x7f,
85 0xd4,0xd5,0xc3,0x0b,0x0c,0x0d,0x0e,0x0f,
86 0x10,0x11,0x12,0x13,0xc7,0xb4,0x08,0xc9,
87 0x18,0x19,0xcc,0xcd,0x83,0x1d,0xd2,0x1f,
88 0x81,0x82,0x1c,0x84,0x86,0x0a,0x17,0x1b,
89 0x89,0x91,0x92,0x95,0xa2,0x05,0x06,0x07,
90 0xe0,0xee,0x16,0xe5,0xd0,0x1e,0xea,0x04,
91 0x8a,0xf6,0xc6,0xc2,0x14,0x15,0xc1,0x1a,
92 0x20,0xa6,0xe1,0x80,0xeb,0x90,0x9f,0xe2,
93 0xab,0x8b,0x9b,0x2e,0x3c,0x28,0x2b,0x7c,
94 0x26,0xa9,0xaa,0x9c,0xdb,0xa5,0x99,0xe3,
95 0xa8,0x9e,0x21,0x24,0x2a,0x29,0x3b,0x5e,
96 0x2d,0x2f,0xdf,0xdc,0x9a,0xdd,0xde,0x98,
97 0x9d,0xac,0xba,0x2c,0x25,0x5f,0x3e,0x3f,
98 0xd7,0x88,0x94,0xb0,0xb1,0xb2,0xfc,0xd6,
99 0xfb,0x60,0x3a,0x23,0x40,0x27,0x3d,0x22,
100 0xf8,0x61,0x62,0x63,0x64,0x65,0x66,0x67,
101 0x68,0x69,0x96,0xa4,0xf3,0xaf,0xae,0xc5,
102 0x8c,0x6a,0x6b,0x6c,0x6d,0x6e,0x6f,0x70,
103 0x71,0x72,0x97,0x87,0xce,0x93,0xf1,0xfe,
104 0xc8,0x7e,0x73,0x74,0x75,0x76,0x77,0x78,
105 0x79,0x7a,0xef,0xc0,0xda,0x5b,0xf2,0xf9,
106 0xb5,0xb6,0xfd,0xb7,0xb8,0xb9,0xe6,0xbb,
107 0xbc,0xbd,0x8d,0xd9,0xbf,0x5d,0xd8,0xc4,
108 0x7b,0x41,0x42,0x43,0x44,0x45,0x46,0x47,
109 0x48,0x49,0xcb,0xca,0xbe,0xe8,0xec,0xed,
110 0x7d,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,0x50,
111 0x51,0x52,0xa1,0xad,0xf5,0xf4,0xa3,0x8f,
112 0x5c,0xe7,0x53,0x54,0x55,0x56,0x57,0x58,
113 0x59,0x5a,0xa0,0x85,0x8e,0xe9,0xe4,0xd1,
114 0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,
115 0x38,0x39,0xb3,0xf7,0xf0,0xfa,0xa7,0xff,
116 };
117/*...e*/
118#endif
119/*...sascii_to_ebcdic:0:*/
120static byte ascii_to_ebcdic[0x100] =
121 {
122 0x00,0x01,0x02,0x03,0x37,0x2d,0x2e,0x2f,
123 0x16,0x05,0x25,0x0b,0x0c,0x0d,0x0e,0x0f,
124 0x10,0x11,0x12,0x13,0x3c,0x3d,0x32,0x26,
125 0x18,0x19,0x3f,0x27,0x22,0x1d,0x35,0x1f,
126 0x40,0x5a,0x7f,0x7b,0x5b,0x6c,0x50,0x7d,
127 0x4d,0x5d,0x5c,0x4e,0x6b,0x60,0x4b,0x61,
128 0xf0,0xf1,0xf2,0xf3,0xf4,0xf5,0xf6,0xf7,
129 0xf8,0xf9,0x7a,0x5e,0x4c,0x7e,0x6e,0x6f,
130 0x7c,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,
131 0xc8,0xc9,0xd1,0xd2,0xd3,0xd4,0xd5,0xd6,
132 0xd7,0xd8,0xd9,0xe2,0xe3,0xe4,0xe5,0xe6,
133 0xe7,0xe8,0xe9,0xad,0xe0,0xbd,0x5f,0x6d,
134 0x79,0x81,0x82,0x83,0x84,0x85,0x86,0x87,
135 0x88,0x89,0x91,0x92,0x93,0x94,0x95,0x96,
136 0x97,0x98,0x99,0xa2,0xa3,0xa4,0xa5,0xa6,
137 0xa7,0xa8,0xa9,0xc0,0x4f,0xd0,0xa1,0x07,
138 0x43,0x20,0x21,0x1c,0x23,0xeb,0x24,0x9b,
139 0x71,0x28,0x38,0x49,0x90,0xba,0xec,0xdf,
140 0x45,0x29,0x2a,0x9d,0x72,0x2b,0x8a,0x9a,
141 0x67,0x56,0x64,0x4a,0x53,0x68,0x59,0x46,
142 0xea,0xda,0x2c,0xde,0x8b,0x55,0x41,0xfe,
143 0x58,0x51,0x52,0x48,0x69,0xdb,0x8e,0x8d,
144 0x73,0x74,0x75,0xfa,0x15,0xb0,0xb1,0xb3,
145 0xb4,0xb5,0x6a,0xb7,0xb8,0xb9,0xcc,0xbc,
146 0xab,0x3e,0x3b,0x0a,0xbf,0x8f,0x3a,0x14,
147 0xa0,0x17,0xcb,0xca,0x1a,0x1b,0x9c,0x04,
148 0x34,0xef,0x1e,0x06,0x08,0x09,0x77,0x70,
149 0xbe,0xbb,0xac,0x54,0x63,0x65,0x66,0x62,
150 0x30,0x42,0x47,0x57,0xee,0x33,0xb6,0xe1,
151 0xcd,0xed,0x36,0x44,0xce,0xcf,0x31,0xaa,
152 0xfc,0x9e,0xae,0x8c,0xdd,0xdc,0x39,0xfb,
153 0x80,0xaf,0xfd,0x78,0x76,0xb2,0x9f,0xff,
154 };
155/*...e*/
156
157static void ebcdic(char *dst, char *src)
158 {
159 while ( *src )
160 *dst++ = ascii_to_ebcdic[*src++];
161 }
162/*...e*/
163/*...sgetword:0:*/
164static int getword(byte *c)
165 {
166 return (int) ( ((unsigned int) c[0] << 8) + (unsigned int) c[1] );
167 }
168/*...e*/
169/*...sputword:0:*/
170static void putword(byte *c, int d)
171 {
172 c[0] = (byte) ((unsigned)d>>8);
173 c[1] = (byte) d ;
174 }
175/*...e*/
176
177/*...spsg_qft:0:*/
178GBM_ERR psg_qft(GBMFT *gbmft)
179 {
180 *gbmft = psg_gbmft;
181 return GBM_ERR_OK;
182 }
183/*...e*/
184/*...spsg_rhdr:0:*/
185GBM_ERR psg_rhdr(const char *fn, int fd, GBM *gbm, const char *opt)
186 {
187 PSEG_PRIV *psg_priv = (PSEG_PRIV *) gbm->priv;
188 byte buf[1+2+6];
189
190 fn=fn; /* Suppress 'unref arg' compiler warnings */
191
192 psg_priv->fix_badrec = ( gbm_find_word(opt, "fixrec") != NULL );
193
194 gbm->bpp = 1;
195 gbm->w = -1;
196
197 while ( gbm_file_read(fd, buf, sizeof(buf)) == sizeof(buf) )
198 {
199 long seek_by; int f;
200 if ( psg_priv->fix_badrec )
201 for ( f = 0; buf[0] != 0x5a && f < 10; f++ )
202 {
203 long pos = gbm_file_lseek(fd, 0L, SEEK_CUR);
204 if ( pos == 0L )
205 break;
206 gbm_file_lseek(fd, pos - (sizeof(buf)+1), SEEK_SET);
207 gbm_file_read(fd, buf, sizeof(buf));
208 }
209 if ( buf[0] != 0x5a )
210 return GBM_ERR_PSEG_NOT_5A;
211 seek_by = (long) getword(buf+1)-(2+6);
212 if ( !memcmp(buf+1+2, "\xd3\xee\xee", 3) )
213 ; /* Comment record, ignore it */
214 else if ( !memcmp(buf+1+2, "\xd3\xa8\x5f", 3) )
215 ; /* BeginPageSegment, ignore it */
216 else if ( !memcmp(buf+1+2, "\xd3\xa8\x7b", 3) )
217 ; /* BeginImageBlock, ignore it */
218 else if ( !memcmp(buf+1+2, "\xd3\xa7\x7b", 3) )
219 ; /* ImageOutputControl, ignore it */
220 else if ( !memcmp(buf+1+2, "\xd3\xa6\x7b", 3) )
221 /* InputImageDescriptor, remember its info */
222 {
223 byte buf2[6+12+2+2+6+2+2+4];
224 if ( gbm_file_read(fd, buf2, sizeof(buf2)) != sizeof(buf2) )
225 return GBM_ERR_READ;
226 seek_by -= sizeof(buf2);
227 gbm->w = getword(buf2+6+12);
228 gbm->h = getword(buf2+6+12+2);
229 if ( gbm->w & 7 )
230 return GBM_ERR_PSEG_INV_WIDTH;
231 psg_priv->xcellsizedef = getword(buf2+6+12+2+2+6);
232 psg_priv->ycellsizedef = getword(buf2+6+12+2+2+6+2);
233 if ( psg_priv->xcellsizedef == 0 &&
234 psg_priv->ycellsizedef == 0 )
235 /* No cell structure, image is one lump */
236 {
237 psg_priv->xcellsizedef = gbm->w;
238 psg_priv->ycellsizedef = gbm->h;
239 }
240 else if ( psg_priv->xcellsizedef & 7 )
241 /* Insist upon a multiple of 8 */
242 return GBM_ERR_PSEG_INV_DEFCEL;
243 }
244 else if ( !memcmp(buf+1+2, "\xd3\xee\x7b", 3) ||
245 !memcmp(buf+1+2, "\xd3\xac\x7b", 3) )
246 /* RasterData, or */
247 /* ImageCellPosition, seek back and abort loop */
248 {
249 psg_priv->pos = gbm_file_lseek(fd, - (long) sizeof(buf), SEEK_CUR);
250 return gbm->w != -1 ? GBM_ERR_OK : GBM_ERR_PSEG_SIZE;
251 }
252 else
253 return GBM_ERR_PSEG_BAD_RECORD;
254 gbm_file_lseek(fd, seek_by, SEEK_CUR);
255 }
256
257 return GBM_ERR_READ;
258 }
259/*...e*/
260/*...spsg_rpal:0:*/
261GBM_ERR psg_rpal(int fd, GBM *gbm, GBMRGB *gbmrgb)
262 {
263 fd=fd; gbm=gbm; /* Suppress compiler warnings */
264 gbmrgb[0].r = gbmrgb[0].g = gbmrgb[0].b = 0xff;
265 gbmrgb[1].r = gbmrgb[1].g = gbmrgb[1].b = 0x00;
266 return GBM_ERR_OK;
267 }
268/*...e*/
269/*...spsg_rdata:0:*/
270GBM_ERR psg_rdata(int fd, GBM *gbm, byte *data)
271 {
272 PSEG_PRIV *psg_priv = (PSEG_PRIV *) gbm->priv;
273 byte buf[1+2+6];
274 int stride = ( ( gbm->w*gbm->bpp + 31 ) / 32 ) * 4;
275 int xcellpos = 0;
276 int ycellpos = 0;
277 int xcellsize = psg_priv->xcellsizedef;
278 int ycellsize = psg_priv->ycellsizedef;
279
280 gbm_file_lseek(fd, psg_priv->pos, SEEK_SET);
281
282 while ( gbm_file_read(fd, buf, sizeof(buf)) == sizeof(buf) )
283 {
284 long seek_by; int f;
285 if ( psg_priv->fix_badrec )
286 for ( f = 0; buf[0] != 0x5a && f < 10; f++ )
287 {
288 long pos = gbm_file_lseek(fd, 0L, SEEK_CUR);
289 if ( pos == 0L )
290 break;
291 gbm_file_lseek(fd, pos - (sizeof(buf)+1), SEEK_SET);
292 gbm_file_read(fd, buf, sizeof(buf));
293 }
294 if ( buf[0] != 0x5a )
295 return GBM_ERR_PSEG_NOT_5A;
296 seek_by = (long) getword(buf+1)-(2+6);
297 if ( !memcmp(buf+1+2, "\xd3\xee\xee", 3) )
298 ; /* Comment record, ignore it */
299 else if ( !memcmp(buf+1+2, "\xd3\xa8\x5f", 3) )
300 return GBM_ERR_PSEG_UNEX_REC; /* BeginPageSegment */
301 else if ( !memcmp(buf+1+2, "\xd3\xa8\x7b", 3) )
302 return GBM_ERR_PSEG_UNEX_REC; /* BeginImageBlock */
303 else if ( !memcmp(buf+1+2, "\xd3\xa7\x7b", 3) )
304 return GBM_ERR_PSEG_UNEX_REC; /* ImageOutputControl */
305 else if ( !memcmp(buf+1+2, "\xd3\xa6\x7b", 3) )
306 return GBM_ERR_PSEG_UNEX_REC; /* InputImageDescriptor */
307 else if ( !memcmp(buf+1+2, "\xd3\xac\x7b", 3) )
308 /* ImageCellPosition, ignore it */
309 {
310 byte buf2[12], *p;
311 int xfillsize, yfillsize, y;
312 if ( gbm_file_read(fd, buf2, sizeof(buf2)) != sizeof(buf2) )
313 return GBM_ERR_READ;
314 xcellpos = getword(buf2);
315 if ( xcellpos & 7 )
316 return GBM_ERR_PSEG_INV_CELPOS;
317 ycellpos = getword(buf2+2);
318 xcellsize = getword(buf2+4);
319 if ( xcellsize & 7 )
320 return GBM_ERR_PSEG_INV_CEL;
321 ycellsize = getword(buf2+6);
322 xfillsize = getword(buf2+8);
323 yfillsize = getword(buf2+10);
324 if ( xfillsize != 0xffff && yfillsize != 0xffff )
325 {
326 p = data + ( (gbm->h-1-ycellpos) * stride + xcellpos/8 );
327 for ( y = 0; y < yfillsize; y++, p -= stride )
328 memset(p, 0x00, xfillsize/8);
329 }
330 seek_by -= sizeof(buf2);
331 }
332 else if ( !memcmp(buf+1+2, "\xd3\xee\x7b", 3) )
333 /* RasterData, use the data */
334 {
335 byte *p = data + ( (gbm->h-1-ycellpos) * stride + xcellpos/8 );
336 int xc = xcellsize/8;
337
338 for ( ; seek_by >= xc; seek_by -= xc, p -= stride, ycellpos++, ycellsize-- )
339 if ( gbm_file_read(fd, p, xc) != xc )
340 return GBM_ERR_READ;
341 }
342 else if ( !memcmp(buf+1+2, "\xd3\xa9\x7b", 3) )
343 /* EndImageBlock */
344 return GBM_ERR_OK;
345 else
346 return GBM_ERR_PSEG_BAD_RECORD;
347 gbm_file_lseek(fd, seek_by, SEEK_CUR);
348 }
349
350 return GBM_ERR_READ;
351 }
352/*...e*/
353/*...spsg_w:0:*/
354/*...srecord:0:*/
355static BOOLEAN record(int fd, byte *rec, char *six, int len)
356 {
357 rec[0] = 0x5a;
358 putword(rec+1, 2+6+len);
359 memcpy(rec+1+2, six, 6);
360 return gbm_file_write(fd, rec, 1+2+6+len) == 1+2+6+len;
361 }
362/*...e*/
363
364GBM_ERR psg_w(const char *fn, int fd, const GBM *gbm, const GBMRGB *gbmrgb, const byte *data, const char *opt)
365 {
366 static char by_gbm[] = "Written by GBM", buf8[8+1];
367 static byte *rec, *r;
368 int stride = ( ( gbm->w + 31 ) / 32 ) * 4;
369 int len = (gbm->w+7)/8;
370 int i;
371 byte lastbits = 0xff;
372 const char *str;
373 int scalex = 1000, scaley = 1000;
374 int pelx = 2400, pely = 2400;
375
376 gbmrgb=gbmrgb; /* Suppress compiler warning */
377
378 if ( gbm->bpp != 1 )
379 return GBM_ERR_NOT_SUPP;
380
381 if ( gbm->w > 2400 || gbm->h > 2400 )
382 return GBM_ERR_BAD_SIZE;
383
384 if ( (str = gbm_find_word_prefix(opt, "scalex=")) != NULL )
385 sscanf(str+7, "%i", &scalex);
386 if ( (str = gbm_find_word_prefix(opt, "scaley=")) != NULL )
387 sscanf(str+7, "%i", &scaley);
388 if ( gbm_find_word(opt, "double") != NULL )
389 { scalex *= 2; scaley *= 2; }
390 if ( (str = gbm_find_word_prefix(opt, "pelx=")) != NULL )
391 sscanf(str+5, "%i", &pelx);
392 if ( (str = gbm_find_word_prefix(opt, "pely=")) != NULL )
393 sscanf(str+5, "%i", &pely);
394
395 if ( (rec = malloc((size_t) (1+2+6+max(100,stride)))) == NULL )
396 return GBM_ERR_MEM;
397 r = rec + 1+2+6;
398
399 sprintf(buf8, "%-8.8s", fn);
400 ebcdic(buf8, buf8);
401
402 /* Comment */
403 ebcdic((char *) r, by_gbm);
404 if ( !record(fd, rec, "\xd3\xee\xee\x00\x00\x00", strlen(by_gbm)) )
405 { free(rec); return GBM_ERR_WRITE; }
406
407 /* BeginPageSegment (we will use filename) */
408 memcpy(r, buf8, 8);
409 if ( !record(fd, rec, "\xd3\xa8\x5f\x00\x00\x00", 8) )
410 { free(rec); return GBM_ERR_WRITE; }
411
412 /* BeginImageBlock (use filename again) */
413 if ( !record(fd, rec, "\xd3\xa8\x7b\x00\x00\x00", 8) )
414 { free(rec); return GBM_ERR_WRITE; }
415
416 /* ImageOutputControl */
417 memset(r, 0x00, 6+4+8); /* Image Block Origin, Orientation, Reserved */
418 r[8] = 0x2d; /* 90 degrees */
419 putword(r+6+4+8 , scalex);
420 putword(r+6+4+8+2, scaley);
421 memset(r+6+4+8+4, 0xff, 2);
422 if ( !record(fd, rec, "\xd3\xa7\x7b\x00\x00\x00", 6+4+8+4+2) )
423 { free(rec); return GBM_ERR_WRITE; }
424
425 /* ImageInputDescriptor */
426 memset(r, 0x00, 6+12+2+2+6);
427 putword(r+2, pelx); /* Or 0? */
428 putword(r+4, pely); /* Or 0? */
429 putword(r+6+ 8, pelx);
430 putword(r+6+10, pely);
431 putword(r+6+12, (gbm->w+7)&~7);
432 putword(r+6+12+2, gbm->h);
433 r[6+12+2+2 + 4] = 0x2d;
434 putword(r+6+12+2+2+6, 0); /* Not writing in cells */
435 putword(r+6+12+2+2+6+2, 0); /* Not writing in cells */
436 memcpy( r+6+12+2+2+6+2+2, "\x00\x01\xff\xff", 4);
437 if ( !record(fd, rec, "\xd3\xa6\x7b\x00\x00\x00", 6+12+2+2+6+2+2+4) )
438 { free(rec); return GBM_ERR_WRITE; }
439
440 if ( (unsigned)gbm->w&7U )
441 lastbits = (byte) ( 0xff00U >> ((unsigned)gbm->w&7U) );
442 data += (gbm->h-1) * stride;
443 for ( i = 0; i < gbm->h; i++, data -= stride )
444 {
445 memcpy(r, data, len); r[len-1] &= lastbits;
446 if ( !record(fd, rec, "\xd3\xee\x7b\x00\x00\x00", len) )
447 { free(rec); return GBM_ERR_WRITE; }
448 }
449
450 /* EndImageBlock, (use filename) */
451 memcpy(r, buf8, 8);
452 if ( !record(fd, rec, "\xd3\xa9\x7b\x00\x00\x00", 8) )
453 { free(rec); return GBM_ERR_WRITE; }
454
455 /* EndPageSegment (use filename from before) */
456 if ( !record(fd, rec, "\xd3\xa9\x5f\x00\x00\x00", 8) )
457 { free(rec); return GBM_ERR_WRITE; }
458
459 free(rec);
460
461 return GBM_ERR_OK;
462 }
463/*...e*/
464/*...spsg_err:0:*/
465const char *psg_err(GBM_ERR rc)
466 {
467 switch ( (int) rc )
468 {
469 case GBM_ERR_PSEG_NOT_5A:
470 return "record in the PSEG file does not start with 0x5a (try fixrec option)";
471 case GBM_ERR_PSEG_BAD_RECORD:
472 return "bad/unknown record in PSEG file";
473 case GBM_ERR_PSEG_SIZE:
474 return "size record not seen before raster data or image cell position records";
475 case GBM_ERR_PSEG_INV_WIDTH:
476 return "width must be a multiple of 8";
477 case GBM_ERR_PSEG_INV_DEFCEL:
478 return "default cell size must be a multiple of 8";
479 case GBM_ERR_PSEG_INV_CEL:
480 return "cell size must be a multiple of 8";
481 case GBM_ERR_PSEG_INV_CELPOS:
482 return "cell position must be a multiple of 8";
483 case GBM_ERR_PSEG_UNEX_REC:
484 return "record found in an unexpected place";
485 }
486 return NULL;
487 }
488/*...e*/
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