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1 | /* | |
2 | * "$Id$" | |
3 | * | |
4 | * PPD command interpreter for CUPS. | |
5 | * | |
6 | * Copyright 2007-2014 by Apple Inc. | |
7 | * Copyright 1993-2007 by Easy Software Products. | |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
14 | * | |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | */ | |
17 | ||
18 | /* | |
19 | * Include necessary headers... | |
20 | */ | |
21 | ||
22 | #include <cups/raster-private.h> | |
23 | ||
24 | ||
25 | /* | |
26 | * Stack values for the PostScript mini-interpreter... | |
27 | */ | |
28 | ||
29 | typedef enum | |
30 | { | |
31 | CUPS_PS_NAME, | |
32 | CUPS_PS_NUMBER, | |
33 | CUPS_PS_STRING, | |
34 | CUPS_PS_BOOLEAN, | |
35 | CUPS_PS_NULL, | |
36 | CUPS_PS_START_ARRAY, | |
37 | CUPS_PS_END_ARRAY, | |
38 | CUPS_PS_START_DICT, | |
39 | CUPS_PS_END_DICT, | |
40 | CUPS_PS_START_PROC, | |
41 | CUPS_PS_END_PROC, | |
42 | CUPS_PS_CLEARTOMARK, | |
43 | CUPS_PS_COPY, | |
44 | CUPS_PS_DUP, | |
45 | CUPS_PS_INDEX, | |
46 | CUPS_PS_POP, | |
47 | CUPS_PS_ROLL, | |
48 | CUPS_PS_SETPAGEDEVICE, | |
49 | CUPS_PS_STOPPED, | |
50 | CUPS_PS_OTHER | |
51 | } _cups_ps_type_t; | |
52 | ||
53 | typedef struct | |
54 | { | |
55 | _cups_ps_type_t type; /* Object type */ | |
56 | union | |
57 | { | |
58 | int boolean; /* Boolean value */ | |
59 | char name[64]; /* Name value */ | |
60 | double number; /* Number value */ | |
61 | char other[64]; /* Other operator */ | |
62 | char string[64]; /* Sring value */ | |
63 | } value; /* Value */ | |
64 | } _cups_ps_obj_t; | |
65 | ||
66 | typedef struct | |
67 | { | |
68 | int num_objs, /* Number of objects on stack */ | |
69 | alloc_objs; /* Number of allocated objects */ | |
70 | _cups_ps_obj_t *objs; /* Objects in stack */ | |
71 | } _cups_ps_stack_t; | |
72 | ||
73 | ||
74 | /* | |
75 | * Local functions... | |
76 | */ | |
77 | ||
78 | static int cleartomark_stack(_cups_ps_stack_t *st); | |
79 | static int copy_stack(_cups_ps_stack_t *st, int count); | |
80 | static void delete_stack(_cups_ps_stack_t *st); | |
81 | static void error_object(_cups_ps_obj_t *obj); | |
82 | static void error_stack(_cups_ps_stack_t *st, const char *title); | |
83 | static _cups_ps_obj_t *index_stack(_cups_ps_stack_t *st, int n); | |
84 | static _cups_ps_stack_t *new_stack(void); | |
85 | static _cups_ps_obj_t *pop_stack(_cups_ps_stack_t *st); | |
86 | static _cups_ps_obj_t *push_stack(_cups_ps_stack_t *st, | |
87 | _cups_ps_obj_t *obj); | |
88 | static int roll_stack(_cups_ps_stack_t *st, int c, int s); | |
89 | static _cups_ps_obj_t *scan_ps(_cups_ps_stack_t *st, char **ptr); | |
90 | static int setpagedevice(_cups_ps_stack_t *st, | |
91 | cups_page_header2_t *h, | |
92 | int *preferred_bits); | |
93 | #ifdef DEBUG | |
94 | static void DEBUG_object(_cups_ps_obj_t *obj); | |
95 | static void DEBUG_stack(_cups_ps_stack_t *st); | |
96 | #endif /* DEBUG */ | |
97 | ||
98 | ||
99 | /* | |
100 | * 'cupsRasterInterpretPPD()' - Interpret PPD commands to create a page header. | |
101 | * | |
102 | * This function is used by raster image processing (RIP) filters like | |
103 | * cgpdftoraster and imagetoraster when writing CUPS raster data for a page. | |
104 | * It is not used by raster printer driver filters which only read CUPS | |
105 | * raster data. | |
106 | * | |
107 | * | |
108 | * @code cupsRasterInterpretPPD@ does not mark the options in the PPD using | |
109 | * the "num_options" and "options" arguments. Instead, mark the options with | |
110 | * @code cupsMarkOptions@ and @code ppdMarkOption@ prior to calling it - | |
111 | * this allows for per-page options without manipulating the options array. | |
112 | * | |
113 | * The "func" argument specifies an optional callback function that is | |
114 | * called prior to the computation of the final raster data. The function | |
115 | * can make changes to the @link cups_page_header2_t@ data as needed to use a | |
116 | * supported raster format and then returns 0 on success and -1 if the | |
117 | * requested attributes cannot be supported. | |
118 | * | |
119 | * | |
120 | * @code cupsRasterInterpretPPD@ supports a subset of the PostScript language. | |
121 | * Currently only the @code [@, @code ]@, @code <<@, @code >>@, @code {@, | |
122 | * @code }@, @code cleartomark@, @code copy@, @code dup@, @code index@, | |
123 | * @code pop@, @code roll@, @code setpagedevice@, and @code stopped@ operators | |
124 | * are supported. | |
125 | * | |
126 | * @since CUPS 1.2/OS X 10.5@ | |
127 | */ | |
128 | ||
129 | int /* O - 0 on success, -1 on failure */ | |
130 | cupsRasterInterpretPPD( | |
131 | cups_page_header2_t *h, /* O - Page header to create */ | |
132 | ppd_file_t *ppd, /* I - PPD file */ | |
133 | int num_options, /* I - Number of options */ | |
134 | cups_option_t *options, /* I - Options */ | |
135 | cups_interpret_cb_t func) /* I - Optional page header callback (@code NULL@ for none) */ | |
136 | { | |
137 | int status; /* Cummulative status */ | |
138 | char *code; /* Code to run */ | |
139 | const char *val; /* Option value */ | |
140 | ppd_size_t *size; /* Current size */ | |
141 | float left, /* Left position */ | |
142 | bottom, /* Bottom position */ | |
143 | right, /* Right position */ | |
144 | top, /* Top position */ | |
145 | temp1, temp2; /* Temporary variables for swapping */ | |
146 | int preferred_bits; /* Preferred bits per color */ | |
147 | ||
148 | ||
149 | /* | |
150 | * Range check input... | |
151 | */ | |
152 | ||
153 | _cupsRasterClearError(); | |
154 | ||
155 | if (!h) | |
156 | { | |
157 | _cupsRasterAddError("Page header cannot be NULL!\n"); | |
158 | return (-1); | |
159 | } | |
160 | ||
161 | /* | |
162 | * Reset the page header to the defaults... | |
163 | */ | |
164 | ||
165 | memset(h, 0, sizeof(cups_page_header2_t)); | |
166 | ||
167 | h->NumCopies = 1; | |
168 | h->PageSize[0] = 612; | |
169 | h->PageSize[1] = 792; | |
170 | h->HWResolution[0] = 100; | |
171 | h->HWResolution[1] = 100; | |
172 | h->cupsBitsPerColor = 1; | |
173 | h->cupsColorOrder = CUPS_ORDER_CHUNKED; | |
174 | h->cupsColorSpace = CUPS_CSPACE_K; | |
175 | h->cupsBorderlessScalingFactor = 1.0f; | |
176 | h->cupsPageSize[0] = 612.0f; | |
177 | h->cupsPageSize[1] = 792.0f; | |
178 | h->cupsImagingBBox[0] = 0.0f; | |
179 | h->cupsImagingBBox[1] = 0.0f; | |
180 | h->cupsImagingBBox[2] = 612.0f; | |
181 | h->cupsImagingBBox[3] = 792.0f; | |
182 | ||
183 | strlcpy(h->cupsPageSizeName, "Letter", sizeof(h->cupsPageSizeName)); | |
184 | ||
185 | #ifdef __APPLE__ | |
186 | /* | |
187 | * cupsInteger0 is also used for the total page count on OS X; set an | |
188 | * uncommon default value so we can tell if the driver is using cupsInteger0. | |
189 | */ | |
190 | ||
191 | h->cupsInteger[0] = 0x80000000; | |
192 | #endif /* __APPLE__ */ | |
193 | ||
194 | /* | |
195 | * Apply patches and options to the page header... | |
196 | */ | |
197 | ||
198 | status = 0; | |
199 | preferred_bits = 0; | |
200 | ||
201 | if (ppd) | |
202 | { | |
203 | /* | |
204 | * Apply any patch code (used to override the defaults...) | |
205 | */ | |
206 | ||
207 | if (ppd->patches) | |
208 | status |= _cupsRasterExecPS(h, &preferred_bits, ppd->patches); | |
209 | ||
210 | /* | |
211 | * Then apply printer options in the proper order... | |
212 | */ | |
213 | ||
214 | if ((code = ppdEmitString(ppd, PPD_ORDER_DOCUMENT, 0.0)) != NULL) | |
215 | { | |
216 | status |= _cupsRasterExecPS(h, &preferred_bits, code); | |
217 | free(code); | |
218 | } | |
219 | ||
220 | if ((code = ppdEmitString(ppd, PPD_ORDER_ANY, 0.0)) != NULL) | |
221 | { | |
222 | status |= _cupsRasterExecPS(h, &preferred_bits, code); | |
223 | free(code); | |
224 | } | |
225 | ||
226 | if ((code = ppdEmitString(ppd, PPD_ORDER_PROLOG, 0.0)) != NULL) | |
227 | { | |
228 | status |= _cupsRasterExecPS(h, &preferred_bits, code); | |
229 | free(code); | |
230 | } | |
231 | ||
232 | if ((code = ppdEmitString(ppd, PPD_ORDER_PAGE, 0.0)) != NULL) | |
233 | { | |
234 | status |= _cupsRasterExecPS(h, &preferred_bits, code); | |
235 | free(code); | |
236 | } | |
237 | } | |
238 | ||
239 | /* | |
240 | * Allow option override for page scaling... | |
241 | */ | |
242 | ||
243 | if ((val = cupsGetOption("cupsBorderlessScalingFactor", num_options, | |
244 | options)) != NULL) | |
245 | { | |
246 | double sc = atof(val); /* Scale factor */ | |
247 | ||
248 | if (sc >= 0.1 && sc <= 2.0) | |
249 | h->cupsBorderlessScalingFactor = (float)sc; | |
250 | } | |
251 | ||
252 | /* | |
253 | * Get the margins for the current size... | |
254 | */ | |
255 | ||
256 | if ((size = ppdPageSize(ppd, NULL)) != NULL) | |
257 | { | |
258 | /* | |
259 | * Use the margins from the PPD file... | |
260 | */ | |
261 | ||
262 | left = size->left; | |
263 | bottom = size->bottom; | |
264 | right = size->right; | |
265 | top = size->top; | |
266 | ||
267 | strlcpy(h->cupsPageSizeName, size->name, sizeof(h->cupsPageSizeName)); | |
268 | ||
269 | h->cupsPageSize[0] = size->width; | |
270 | h->cupsPageSize[1] = size->length; | |
271 | } | |
272 | else | |
273 | { | |
274 | /* | |
275 | * Use the default margins... | |
276 | */ | |
277 | ||
278 | left = 0.0f; | |
279 | bottom = 0.0f; | |
280 | right = 612.0f; | |
281 | top = 792.0f; | |
282 | } | |
283 | ||
284 | /* | |
285 | * Handle orientation... | |
286 | */ | |
287 | ||
288 | switch (h->Orientation) | |
289 | { | |
290 | case CUPS_ORIENT_0 : | |
291 | default : | |
292 | /* Do nothing */ | |
293 | break; | |
294 | ||
295 | case CUPS_ORIENT_90 : | |
296 | temp1 = h->cupsPageSize[0]; | |
297 | h->cupsPageSize[0] = h->cupsPageSize[1]; | |
298 | h->cupsPageSize[1] = temp1; | |
299 | ||
300 | temp1 = left; | |
301 | temp2 = right; | |
302 | left = h->cupsPageSize[0] - top; | |
303 | right = h->cupsPageSize[0] - bottom; | |
304 | bottom = h->cupsPageSize[1] - temp1; | |
305 | top = h->cupsPageSize[1] - temp2; | |
306 | break; | |
307 | ||
308 | case CUPS_ORIENT_180 : | |
309 | temp1 = left; | |
310 | temp2 = bottom; | |
311 | left = h->cupsPageSize[0] - right; | |
312 | right = h->cupsPageSize[0] - temp1; | |
313 | bottom = h->cupsPageSize[1] - top; | |
314 | top = h->cupsPageSize[1] - temp2; | |
315 | break; | |
316 | ||
317 | case CUPS_ORIENT_270 : | |
318 | temp1 = h->cupsPageSize[0]; | |
319 | h->cupsPageSize[0] = h->cupsPageSize[1]; | |
320 | h->cupsPageSize[1] = temp1; | |
321 | ||
322 | temp1 = left; | |
323 | temp2 = right; | |
324 | left = bottom; | |
325 | right = top; | |
326 | bottom = h->cupsPageSize[1] - temp2; | |
327 | top = h->cupsPageSize[1] - temp1; | |
328 | break; | |
329 | } | |
330 | ||
331 | if (left > right) | |
332 | { | |
333 | temp1 = left; | |
334 | left = right; | |
335 | right = temp1; | |
336 | } | |
337 | ||
338 | if (bottom > top) | |
339 | { | |
340 | temp1 = bottom; | |
341 | bottom = top; | |
342 | top = temp1; | |
343 | } | |
344 | ||
345 | h->PageSize[0] = (unsigned)(h->cupsPageSize[0] * | |
346 | h->cupsBorderlessScalingFactor); | |
347 | h->PageSize[1] = (unsigned)(h->cupsPageSize[1] * | |
348 | h->cupsBorderlessScalingFactor); | |
349 | h->Margins[0] = (unsigned)(left * | |
350 | h->cupsBorderlessScalingFactor); | |
351 | h->Margins[1] = (unsigned)(bottom * | |
352 | h->cupsBorderlessScalingFactor); | |
353 | h->ImagingBoundingBox[0] = (unsigned)(left * | |
354 | h->cupsBorderlessScalingFactor); | |
355 | h->ImagingBoundingBox[1] = (unsigned)(bottom * | |
356 | h->cupsBorderlessScalingFactor); | |
357 | h->ImagingBoundingBox[2] = (unsigned)(right * | |
358 | h->cupsBorderlessScalingFactor); | |
359 | h->ImagingBoundingBox[3] = (unsigned)(top * | |
360 | h->cupsBorderlessScalingFactor); | |
361 | h->cupsImagingBBox[0] = (float)left; | |
362 | h->cupsImagingBBox[1] = (float)bottom; | |
363 | h->cupsImagingBBox[2] = (float)right; | |
364 | h->cupsImagingBBox[3] = (float)top; | |
365 | ||
366 | /* | |
367 | * Use the callback to validate the page header... | |
368 | */ | |
369 | ||
370 | if (func && (*func)(h, preferred_bits)) | |
371 | { | |
372 | _cupsRasterAddError("Page header callback returned error.\n"); | |
373 | return (-1); | |
374 | } | |
375 | ||
376 | /* | |
377 | * Check parameters... | |
378 | */ | |
379 | ||
380 | if (!h->HWResolution[0] || !h->HWResolution[1] || | |
381 | !h->PageSize[0] || !h->PageSize[1] || | |
382 | (h->cupsBitsPerColor != 1 && h->cupsBitsPerColor != 2 && | |
383 | h->cupsBitsPerColor != 4 && h->cupsBitsPerColor != 8 && | |
384 | h->cupsBitsPerColor != 16) || | |
385 | h->cupsBorderlessScalingFactor < 0.1 || | |
386 | h->cupsBorderlessScalingFactor > 2.0) | |
387 | { | |
388 | _cupsRasterAddError("Page header uses unsupported values.\n"); | |
389 | return (-1); | |
390 | } | |
391 | ||
392 | /* | |
393 | * Compute the bitmap parameters... | |
394 | */ | |
395 | ||
396 | h->cupsWidth = (unsigned)((right - left) * h->cupsBorderlessScalingFactor * | |
397 | h->HWResolution[0] / 72.0f + 0.5f); | |
398 | h->cupsHeight = (unsigned)((top - bottom) * h->cupsBorderlessScalingFactor * | |
399 | h->HWResolution[1] / 72.0f + 0.5f); | |
400 | ||
401 | switch (h->cupsColorSpace) | |
402 | { | |
403 | case CUPS_CSPACE_W : | |
404 | case CUPS_CSPACE_K : | |
405 | case CUPS_CSPACE_WHITE : | |
406 | case CUPS_CSPACE_GOLD : | |
407 | case CUPS_CSPACE_SILVER : | |
408 | case CUPS_CSPACE_SW : | |
409 | h->cupsNumColors = 1; | |
410 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
411 | break; | |
412 | ||
413 | default : | |
414 | /* | |
415 | * Ensure that colorimetric colorspaces use at least 8 bits per | |
416 | * component... | |
417 | */ | |
418 | ||
419 | if (h->cupsColorSpace >= CUPS_CSPACE_CIEXYZ && | |
420 | h->cupsBitsPerColor < 8) | |
421 | h->cupsBitsPerColor = 8; | |
422 | ||
423 | /* | |
424 | * Figure out the number of bits per pixel... | |
425 | */ | |
426 | ||
427 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
428 | { | |
429 | if (h->cupsBitsPerColor >= 8) | |
430 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 3; | |
431 | else | |
432 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 4; | |
433 | } | |
434 | else | |
435 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
436 | ||
437 | h->cupsNumColors = 3; | |
438 | break; | |
439 | ||
440 | case CUPS_CSPACE_KCMYcm : | |
441 | if (h->cupsBitsPerColor == 1) | |
442 | { | |
443 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
444 | h->cupsBitsPerPixel = 8; | |
445 | else | |
446 | h->cupsBitsPerPixel = 1; | |
447 | ||
448 | h->cupsNumColors = 6; | |
449 | break; | |
450 | } | |
451 | ||
452 | /* | |
453 | * Fall through to CMYK code... | |
454 | */ | |
455 | ||
456 | case CUPS_CSPACE_RGBA : | |
457 | case CUPS_CSPACE_RGBW : | |
458 | case CUPS_CSPACE_CMYK : | |
459 | case CUPS_CSPACE_YMCK : | |
460 | case CUPS_CSPACE_KCMY : | |
461 | case CUPS_CSPACE_GMCK : | |
462 | case CUPS_CSPACE_GMCS : | |
463 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
464 | h->cupsBitsPerPixel = h->cupsBitsPerColor * 4; | |
465 | else | |
466 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
467 | ||
468 | h->cupsNumColors = 4; | |
469 | break; | |
470 | ||
471 | case CUPS_CSPACE_DEVICE1 : | |
472 | case CUPS_CSPACE_DEVICE2 : | |
473 | case CUPS_CSPACE_DEVICE3 : | |
474 | case CUPS_CSPACE_DEVICE4 : | |
475 | case CUPS_CSPACE_DEVICE5 : | |
476 | case CUPS_CSPACE_DEVICE6 : | |
477 | case CUPS_CSPACE_DEVICE7 : | |
478 | case CUPS_CSPACE_DEVICE8 : | |
479 | case CUPS_CSPACE_DEVICE9 : | |
480 | case CUPS_CSPACE_DEVICEA : | |
481 | case CUPS_CSPACE_DEVICEB : | |
482 | case CUPS_CSPACE_DEVICEC : | |
483 | case CUPS_CSPACE_DEVICED : | |
484 | case CUPS_CSPACE_DEVICEE : | |
485 | case CUPS_CSPACE_DEVICEF : | |
486 | h->cupsNumColors = h->cupsColorSpace - CUPS_CSPACE_DEVICE1 + 1; | |
487 | ||
488 | if (h->cupsColorOrder == CUPS_ORDER_CHUNKED) | |
489 | h->cupsBitsPerPixel = h->cupsBitsPerColor * h->cupsNumColors; | |
490 | else | |
491 | h->cupsBitsPerPixel = h->cupsBitsPerColor; | |
492 | break; | |
493 | } | |
494 | ||
495 | h->cupsBytesPerLine = (h->cupsBitsPerPixel * h->cupsWidth + 7) / 8; | |
496 | ||
497 | if (h->cupsColorOrder == CUPS_ORDER_BANDED) | |
498 | h->cupsBytesPerLine *= h->cupsNumColors; | |
499 | ||
500 | return (status); | |
501 | } | |
502 | ||
503 | ||
504 | /* | |
505 | * '_cupsRasterExecPS()' - Execute PostScript code to initialize a page header. | |
506 | */ | |
507 | ||
508 | int /* O - 0 on success, -1 on error */ | |
509 | _cupsRasterExecPS( | |
510 | cups_page_header2_t *h, /* O - Page header */ | |
511 | int *preferred_bits,/* O - Preferred bits per color */ | |
512 | const char *code) /* I - PS code to execute */ | |
513 | { | |
514 | int error = 0; /* Error condition? */ | |
515 | _cups_ps_stack_t *st; /* PostScript value stack */ | |
516 | _cups_ps_obj_t *obj; /* Object from top of stack */ | |
517 | char *codecopy, /* Copy of code */ | |
518 | *codeptr; /* Pointer into copy of code */ | |
519 | ||
520 | ||
521 | DEBUG_printf(("_cupsRasterExecPS(h=%p, preferred_bits=%p, code=\"%s\")\n", | |
522 | h, preferred_bits, code)); | |
523 | ||
524 | /* | |
525 | * Copy the PostScript code and create a stack... | |
526 | */ | |
527 | ||
528 | if ((codecopy = strdup(code)) == NULL) | |
529 | { | |
530 | _cupsRasterAddError("Unable to duplicate code string.\n"); | |
531 | return (-1); | |
532 | } | |
533 | ||
534 | if ((st = new_stack()) == NULL) | |
535 | { | |
536 | _cupsRasterAddError("Unable to create stack.\n"); | |
537 | free(codecopy); | |
538 | return (-1); | |
539 | } | |
540 | ||
541 | /* | |
542 | * Parse the PS string until we run out of data... | |
543 | */ | |
544 | ||
545 | codeptr = codecopy; | |
546 | ||
547 | while ((obj = scan_ps(st, &codeptr)) != NULL) | |
548 | { | |
549 | #ifdef DEBUG | |
550 | DEBUG_printf(("_cupsRasterExecPS: Stack (%d objects)\n", st->num_objs)); | |
551 | DEBUG_object(obj); | |
552 | #endif /* DEBUG */ | |
553 | ||
554 | switch (obj->type) | |
555 | { | |
556 | default : | |
557 | /* Do nothing for regular values */ | |
558 | break; | |
559 | ||
560 | case CUPS_PS_CLEARTOMARK : | |
561 | pop_stack(st); | |
562 | ||
563 | if (cleartomark_stack(st)) | |
564 | _cupsRasterAddError("cleartomark: Stack underflow!\n"); | |
565 | ||
566 | #ifdef DEBUG | |
567 | DEBUG_puts(" dup: "); | |
568 | DEBUG_stack(st); | |
569 | #endif /* DEBUG */ | |
570 | break; | |
571 | ||
572 | case CUPS_PS_COPY : | |
573 | pop_stack(st); | |
574 | if ((obj = pop_stack(st)) != NULL) | |
575 | { | |
576 | copy_stack(st, (int)obj->value.number); | |
577 | ||
578 | #ifdef DEBUG | |
579 | DEBUG_puts("_cupsRasterExecPS: copy"); | |
580 | DEBUG_stack(st); | |
581 | #endif /* DEBUG */ | |
582 | } | |
583 | break; | |
584 | ||
585 | case CUPS_PS_DUP : | |
586 | pop_stack(st); | |
587 | copy_stack(st, 1); | |
588 | ||
589 | #ifdef DEBUG | |
590 | DEBUG_puts("_cupsRasterExecPS: dup"); | |
591 | DEBUG_stack(st); | |
592 | #endif /* DEBUG */ | |
593 | break; | |
594 | ||
595 | case CUPS_PS_INDEX : | |
596 | pop_stack(st); | |
597 | if ((obj = pop_stack(st)) != NULL) | |
598 | { | |
599 | index_stack(st, (int)obj->value.number); | |
600 | ||
601 | #ifdef DEBUG | |
602 | DEBUG_puts("_cupsRasterExecPS: index"); | |
603 | DEBUG_stack(st); | |
604 | #endif /* DEBUG */ | |
605 | } | |
606 | break; | |
607 | ||
608 | case CUPS_PS_POP : | |
609 | pop_stack(st); | |
610 | pop_stack(st); | |
611 | ||
612 | #ifdef DEBUG | |
613 | DEBUG_puts("_cupsRasterExecPS: pop"); | |
614 | DEBUG_stack(st); | |
615 | #endif /* DEBUG */ | |
616 | break; | |
617 | ||
618 | case CUPS_PS_ROLL : | |
619 | pop_stack(st); | |
620 | if ((obj = pop_stack(st)) != NULL) | |
621 | { | |
622 | int c; /* Count */ | |
623 | ||
624 | ||
625 | c = (int)obj->value.number; | |
626 | ||
627 | if ((obj = pop_stack(st)) != NULL) | |
628 | { | |
629 | roll_stack(st, (int)obj->value.number, c); | |
630 | ||
631 | #ifdef DEBUG | |
632 | DEBUG_puts("_cupsRasterExecPS: roll"); | |
633 | DEBUG_stack(st); | |
634 | #endif /* DEBUG */ | |
635 | } | |
636 | } | |
637 | break; | |
638 | ||
639 | case CUPS_PS_SETPAGEDEVICE : | |
640 | pop_stack(st); | |
641 | setpagedevice(st, h, preferred_bits); | |
642 | ||
643 | #ifdef DEBUG | |
644 | DEBUG_puts("_cupsRasterExecPS: setpagedevice"); | |
645 | DEBUG_stack(st); | |
646 | #endif /* DEBUG */ | |
647 | break; | |
648 | ||
649 | case CUPS_PS_START_PROC : | |
650 | case CUPS_PS_END_PROC : | |
651 | case CUPS_PS_STOPPED : | |
652 | pop_stack(st); | |
653 | break; | |
654 | ||
655 | case CUPS_PS_OTHER : | |
656 | _cupsRasterAddError("Unknown operator \"%s\"!\n", obj->value.other); | |
657 | error = 1; | |
658 | DEBUG_printf(("_cupsRasterExecPS: Unknown operator \"%s\"!\n", | |
659 | obj->value.other)); | |
660 | break; | |
661 | } | |
662 | ||
663 | if (error) | |
664 | break; | |
665 | } | |
666 | ||
667 | /* | |
668 | * Cleanup... | |
669 | */ | |
670 | ||
671 | free(codecopy); | |
672 | ||
673 | if (st->num_objs > 0) | |
674 | { | |
675 | error_stack(st, "Stack not empty:"); | |
676 | ||
677 | #ifdef DEBUG | |
678 | DEBUG_puts("_cupsRasterExecPS: Stack not empty:"); | |
679 | DEBUG_stack(st); | |
680 | #endif /* DEBUG */ | |
681 | ||
682 | delete_stack(st); | |
683 | ||
684 | return (-1); | |
685 | } | |
686 | ||
687 | delete_stack(st); | |
688 | ||
689 | /* | |
690 | * Return success... | |
691 | */ | |
692 | ||
693 | return (0); | |
694 | } | |
695 | ||
696 | ||
697 | /* | |
698 | * 'cleartomark_stack()' - Clear to the last mark ([) on the stack. | |
699 | */ | |
700 | ||
701 | static int /* O - 0 on success, -1 on error */ | |
702 | cleartomark_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
703 | { | |
704 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
705 | ||
706 | ||
707 | while ((obj = pop_stack(st)) != NULL) | |
708 | if (obj->type == CUPS_PS_START_ARRAY) | |
709 | break; | |
710 | ||
711 | return (obj ? 0 : -1); | |
712 | } | |
713 | ||
714 | ||
715 | /* | |
716 | * 'copy_stack()' - Copy the top N stack objects. | |
717 | */ | |
718 | ||
719 | static int /* O - 0 on success, -1 on error */ | |
720 | copy_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
721 | int c) /* I - Number of objects to copy */ | |
722 | { | |
723 | int n; /* Index */ | |
724 | ||
725 | ||
726 | if (c < 0) | |
727 | return (-1); | |
728 | else if (c == 0) | |
729 | return (0); | |
730 | ||
731 | if ((n = st->num_objs - c) < 0) | |
732 | return (-1); | |
733 | ||
734 | while (c > 0) | |
735 | { | |
736 | if (!push_stack(st, st->objs + n)) | |
737 | return (-1); | |
738 | ||
739 | n ++; | |
740 | c --; | |
741 | } | |
742 | ||
743 | return (0); | |
744 | } | |
745 | ||
746 | ||
747 | /* | |
748 | * 'delete_stack()' - Free memory used by a stack. | |
749 | */ | |
750 | ||
751 | static void | |
752 | delete_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
753 | { | |
754 | free(st->objs); | |
755 | free(st); | |
756 | } | |
757 | ||
758 | ||
759 | /* | |
760 | * 'error_object()' - Add an object's value to the current error message. | |
761 | */ | |
762 | ||
763 | static void | |
764 | error_object(_cups_ps_obj_t *obj) /* I - Object to add */ | |
765 | { | |
766 | switch (obj->type) | |
767 | { | |
768 | case CUPS_PS_NAME : | |
769 | _cupsRasterAddError(" /%s", obj->value.name); | |
770 | break; | |
771 | ||
772 | case CUPS_PS_NUMBER : | |
773 | _cupsRasterAddError(" %g", obj->value.number); | |
774 | break; | |
775 | ||
776 | case CUPS_PS_STRING : | |
777 | _cupsRasterAddError(" (%s)", obj->value.string); | |
778 | break; | |
779 | ||
780 | case CUPS_PS_BOOLEAN : | |
781 | if (obj->value.boolean) | |
782 | _cupsRasterAddError(" true"); | |
783 | else | |
784 | _cupsRasterAddError(" false"); | |
785 | break; | |
786 | ||
787 | case CUPS_PS_NULL : | |
788 | _cupsRasterAddError(" null"); | |
789 | break; | |
790 | ||
791 | case CUPS_PS_START_ARRAY : | |
792 | _cupsRasterAddError(" ["); | |
793 | break; | |
794 | ||
795 | case CUPS_PS_END_ARRAY : | |
796 | _cupsRasterAddError(" ]"); | |
797 | break; | |
798 | ||
799 | case CUPS_PS_START_DICT : | |
800 | _cupsRasterAddError(" <<"); | |
801 | break; | |
802 | ||
803 | case CUPS_PS_END_DICT : | |
804 | _cupsRasterAddError(" >>"); | |
805 | break; | |
806 | ||
807 | case CUPS_PS_START_PROC : | |
808 | _cupsRasterAddError(" {"); | |
809 | break; | |
810 | ||
811 | case CUPS_PS_END_PROC : | |
812 | _cupsRasterAddError(" }"); | |
813 | break; | |
814 | ||
815 | case CUPS_PS_COPY : | |
816 | _cupsRasterAddError(" --copy--"); | |
817 | break; | |
818 | ||
819 | case CUPS_PS_CLEARTOMARK : | |
820 | _cupsRasterAddError(" --cleartomark--"); | |
821 | break; | |
822 | ||
823 | case CUPS_PS_DUP : | |
824 | _cupsRasterAddError(" --dup--"); | |
825 | break; | |
826 | ||
827 | case CUPS_PS_INDEX : | |
828 | _cupsRasterAddError(" --index--"); | |
829 | break; | |
830 | ||
831 | case CUPS_PS_POP : | |
832 | _cupsRasterAddError(" --pop--"); | |
833 | break; | |
834 | ||
835 | case CUPS_PS_ROLL : | |
836 | _cupsRasterAddError(" --roll--"); | |
837 | break; | |
838 | ||
839 | case CUPS_PS_SETPAGEDEVICE : | |
840 | _cupsRasterAddError(" --setpagedevice--"); | |
841 | break; | |
842 | ||
843 | case CUPS_PS_STOPPED : | |
844 | _cupsRasterAddError(" --stopped--"); | |
845 | break; | |
846 | ||
847 | case CUPS_PS_OTHER : | |
848 | _cupsRasterAddError(" --%s--", obj->value.other); | |
849 | break; | |
850 | } | |
851 | } | |
852 | ||
853 | ||
854 | /* | |
855 | * 'error_stack()' - Add a stack to the current error message... | |
856 | */ | |
857 | ||
858 | static void | |
859 | error_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
860 | const char *title) /* I - Title string */ | |
861 | { | |
862 | int c; /* Looping var */ | |
863 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
864 | ||
865 | ||
866 | _cupsRasterAddError("%s", title); | |
867 | ||
868 | for (obj = st->objs, c = st->num_objs; c > 0; c --, obj ++) | |
869 | error_object(obj); | |
870 | ||
871 | _cupsRasterAddError("\n"); | |
872 | } | |
873 | ||
874 | ||
875 | /* | |
876 | * 'index_stack()' - Copy the Nth value on the stack. | |
877 | */ | |
878 | ||
879 | static _cups_ps_obj_t * /* O - New object */ | |
880 | index_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
881 | int n) /* I - Object index */ | |
882 | { | |
883 | if (n < 0 || (n = st->num_objs - n - 1) < 0) | |
884 | return (NULL); | |
885 | ||
886 | return (push_stack(st, st->objs + n)); | |
887 | } | |
888 | ||
889 | ||
890 | /* | |
891 | * 'new_stack()' - Create a new stack. | |
892 | */ | |
893 | ||
894 | static _cups_ps_stack_t * /* O - New stack */ | |
895 | new_stack(void) | |
896 | { | |
897 | _cups_ps_stack_t *st; /* New stack */ | |
898 | ||
899 | ||
900 | if ((st = calloc(1, sizeof(_cups_ps_stack_t))) == NULL) | |
901 | return (NULL); | |
902 | ||
903 | st->alloc_objs = 32; | |
904 | ||
905 | if ((st->objs = calloc(32, sizeof(_cups_ps_obj_t))) == NULL) | |
906 | { | |
907 | free(st); | |
908 | return (NULL); | |
909 | } | |
910 | else | |
911 | return (st); | |
912 | } | |
913 | ||
914 | ||
915 | /* | |
916 | * 'pop_stock()' - Pop the top object off the stack. | |
917 | */ | |
918 | ||
919 | static _cups_ps_obj_t * /* O - Object */ | |
920 | pop_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
921 | { | |
922 | if (st->num_objs > 0) | |
923 | { | |
924 | st->num_objs --; | |
925 | ||
926 | return (st->objs + st->num_objs); | |
927 | } | |
928 | else | |
929 | return (NULL); | |
930 | } | |
931 | ||
932 | ||
933 | /* | |
934 | * 'push_stack()' - Push an object on the stack. | |
935 | */ | |
936 | ||
937 | static _cups_ps_obj_t * /* O - New object */ | |
938 | push_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
939 | _cups_ps_obj_t *obj) /* I - Object */ | |
940 | { | |
941 | _cups_ps_obj_t *temp; /* New object */ | |
942 | ||
943 | ||
944 | if (st->num_objs >= st->alloc_objs) | |
945 | { | |
946 | ||
947 | ||
948 | st->alloc_objs += 32; | |
949 | ||
950 | if ((temp = realloc(st->objs, (size_t)st->alloc_objs * | |
951 | sizeof(_cups_ps_obj_t))) == NULL) | |
952 | return (NULL); | |
953 | ||
954 | st->objs = temp; | |
955 | memset(temp + st->num_objs, 0, 32 * sizeof(_cups_ps_obj_t)); | |
956 | } | |
957 | ||
958 | temp = st->objs + st->num_objs; | |
959 | st->num_objs ++; | |
960 | ||
961 | memcpy(temp, obj, sizeof(_cups_ps_obj_t)); | |
962 | ||
963 | return (temp); | |
964 | } | |
965 | ||
966 | ||
967 | /* | |
968 | * 'roll_stack()' - Rotate stack objects. | |
969 | */ | |
970 | ||
971 | static int /* O - 0 on success, -1 on error */ | |
972 | roll_stack(_cups_ps_stack_t *st, /* I - Stack */ | |
973 | int c, /* I - Number of objects */ | |
974 | int s) /* I - Amount to shift */ | |
975 | { | |
976 | _cups_ps_obj_t *temp; /* Temporary array of objects */ | |
977 | int n; /* Index into array */ | |
978 | ||
979 | ||
980 | DEBUG_printf((" roll_stack(st=%p, s=%d, c=%d)\n", st, s, c)); | |
981 | ||
982 | /* | |
983 | * Range check input... | |
984 | */ | |
985 | ||
986 | if (c < 0) | |
987 | return (-1); | |
988 | else if (c == 0) | |
989 | return (0); | |
990 | ||
991 | if ((n = st->num_objs - c) < 0) | |
992 | return (-1); | |
993 | ||
994 | s %= c; | |
995 | ||
996 | if (s == 0) | |
997 | return (0); | |
998 | ||
999 | /* | |
1000 | * Copy N objects and move things around... | |
1001 | */ | |
1002 | ||
1003 | if (s < 0) | |
1004 | { | |
1005 | /* | |
1006 | * Shift down... | |
1007 | */ | |
1008 | ||
1009 | s = -s; | |
1010 | ||
1011 | if ((temp = calloc((size_t)s, sizeof(_cups_ps_obj_t))) == NULL) | |
1012 | return (-1); | |
1013 | ||
1014 | memcpy(temp, st->objs + n, (size_t)s * sizeof(_cups_ps_obj_t)); | |
1015 | memmove(st->objs + n, st->objs + n + s, (size_t)(c - s) * sizeof(_cups_ps_obj_t)); | |
1016 | memcpy(st->objs + n + c - s, temp, (size_t)s * sizeof(_cups_ps_obj_t)); | |
1017 | } | |
1018 | else | |
1019 | { | |
1020 | /* | |
1021 | * Shift up... | |
1022 | */ | |
1023 | ||
1024 | if ((temp = calloc((size_t)s, sizeof(_cups_ps_obj_t))) == NULL) | |
1025 | return (-1); | |
1026 | ||
1027 | memcpy(temp, st->objs + n + c - s, (size_t)s * sizeof(_cups_ps_obj_t)); | |
1028 | memmove(st->objs + n + s, st->objs + n, (size_t)(c - s) * sizeof(_cups_ps_obj_t)); | |
1029 | memcpy(st->objs + n, temp, (size_t)s * sizeof(_cups_ps_obj_t)); | |
1030 | } | |
1031 | ||
1032 | free(temp); | |
1033 | ||
1034 | return (0); | |
1035 | } | |
1036 | ||
1037 | ||
1038 | /* | |
1039 | * 'scan_ps()' - Scan a string for the next PS object. | |
1040 | */ | |
1041 | ||
1042 | static _cups_ps_obj_t * /* O - New object or NULL on EOF */ | |
1043 | scan_ps(_cups_ps_stack_t *st, /* I - Stack */ | |
1044 | char **ptr) /* IO - String pointer */ | |
1045 | { | |
1046 | _cups_ps_obj_t obj; /* Current object */ | |
1047 | char *start, /* Start of object */ | |
1048 | *cur, /* Current position */ | |
1049 | *valptr, /* Pointer into value string */ | |
1050 | *valend; /* End of value string */ | |
1051 | int parens; /* Parenthesis nesting level */ | |
1052 | ||
1053 | ||
1054 | /* | |
1055 | * Skip leading whitespace... | |
1056 | */ | |
1057 | ||
1058 | for (cur = *ptr; *cur; cur ++) | |
1059 | { | |
1060 | if (*cur == '%') | |
1061 | { | |
1062 | /* | |
1063 | * Comment, skip to end of line... | |
1064 | */ | |
1065 | ||
1066 | for (cur ++; *cur && *cur != '\n' && *cur != '\r'; cur ++); | |
1067 | ||
1068 | if (!*cur) | |
1069 | cur --; | |
1070 | } | |
1071 | else if (!isspace(*cur & 255)) | |
1072 | break; | |
1073 | } | |
1074 | ||
1075 | if (!*cur) | |
1076 | { | |
1077 | *ptr = NULL; | |
1078 | ||
1079 | return (NULL); | |
1080 | } | |
1081 | ||
1082 | /* | |
1083 | * See what we have... | |
1084 | */ | |
1085 | ||
1086 | memset(&obj, 0, sizeof(obj)); | |
1087 | ||
1088 | switch (*cur) | |
1089 | { | |
1090 | case '(' : /* (string) */ | |
1091 | obj.type = CUPS_PS_STRING; | |
1092 | start = cur; | |
1093 | ||
1094 | for (cur ++, parens = 1, valptr = obj.value.string, | |
1095 | valend = obj.value.string + sizeof(obj.value.string) - 1; | |
1096 | *cur; | |
1097 | cur ++) | |
1098 | { | |
1099 | if (*cur == ')' && parens == 1) | |
1100 | break; | |
1101 | ||
1102 | if (*cur == '(') | |
1103 | parens ++; | |
1104 | else if (*cur == ')') | |
1105 | parens --; | |
1106 | ||
1107 | if (valptr >= valend) | |
1108 | { | |
1109 | *ptr = start; | |
1110 | ||
1111 | return (NULL); | |
1112 | } | |
1113 | ||
1114 | if (*cur == '\\') | |
1115 | { | |
1116 | /* | |
1117 | * Decode escaped character... | |
1118 | */ | |
1119 | ||
1120 | cur ++; | |
1121 | ||
1122 | if (*cur == 'b') | |
1123 | *valptr++ = '\b'; | |
1124 | else if (*cur == 'f') | |
1125 | *valptr++ = '\f'; | |
1126 | else if (*cur == 'n') | |
1127 | *valptr++ = '\n'; | |
1128 | else if (*cur == 'r') | |
1129 | *valptr++ = '\r'; | |
1130 | else if (*cur == 't') | |
1131 | *valptr++ = '\t'; | |
1132 | else if (*cur >= '0' && *cur <= '7') | |
1133 | { | |
1134 | int ch = *cur - '0'; | |
1135 | ||
1136 | if (cur[1] >= '0' && cur[1] <= '7') | |
1137 | { | |
1138 | cur ++; | |
1139 | ch = (ch << 3) + *cur - '0'; | |
1140 | } | |
1141 | ||
1142 | if (cur[1] >= '0' && cur[1] <= '7') | |
1143 | { | |
1144 | cur ++; | |
1145 | ch = (ch << 3) + *cur - '0'; | |
1146 | } | |
1147 | ||
1148 | *valptr++ = (char)ch; | |
1149 | } | |
1150 | else if (*cur == '\r') | |
1151 | { | |
1152 | if (cur[1] == '\n') | |
1153 | cur ++; | |
1154 | } | |
1155 | else if (*cur != '\n') | |
1156 | *valptr++ = *cur; | |
1157 | } | |
1158 | else | |
1159 | *valptr++ = *cur; | |
1160 | } | |
1161 | ||
1162 | if (*cur != ')') | |
1163 | { | |
1164 | *ptr = start; | |
1165 | ||
1166 | return (NULL); | |
1167 | } | |
1168 | ||
1169 | cur ++; | |
1170 | break; | |
1171 | ||
1172 | case '[' : /* Start array */ | |
1173 | obj.type = CUPS_PS_START_ARRAY; | |
1174 | cur ++; | |
1175 | break; | |
1176 | ||
1177 | case ']' : /* End array */ | |
1178 | obj.type = CUPS_PS_END_ARRAY; | |
1179 | cur ++; | |
1180 | break; | |
1181 | ||
1182 | case '<' : /* Start dictionary or hex string */ | |
1183 | if (cur[1] == '<') | |
1184 | { | |
1185 | obj.type = CUPS_PS_START_DICT; | |
1186 | cur += 2; | |
1187 | } | |
1188 | else | |
1189 | { | |
1190 | obj.type = CUPS_PS_STRING; | |
1191 | start = cur; | |
1192 | ||
1193 | for (cur ++, valptr = obj.value.string, | |
1194 | valend = obj.value.string + sizeof(obj.value.string) - 1; | |
1195 | *cur; | |
1196 | cur ++) | |
1197 | { | |
1198 | int ch; /* Current character */ | |
1199 | ||
1200 | ||
1201 | ||
1202 | if (*cur == '>') | |
1203 | break; | |
1204 | else if (valptr >= valend || !isxdigit(*cur & 255)) | |
1205 | { | |
1206 | *ptr = start; | |
1207 | return (NULL); | |
1208 | } | |
1209 | ||
1210 | if (*cur >= '0' && *cur <= '9') | |
1211 | ch = (*cur - '0') << 4; | |
1212 | else | |
1213 | ch = (tolower(*cur) - 'a' + 10) << 4; | |
1214 | ||
1215 | if (isxdigit(cur[1] & 255)) | |
1216 | { | |
1217 | cur ++; | |
1218 | ||
1219 | if (*cur >= '0' && *cur <= '9') | |
1220 | ch |= *cur - '0'; | |
1221 | else | |
1222 | ch |= tolower(*cur) - 'a' + 10; | |
1223 | } | |
1224 | ||
1225 | *valptr++ = (char)ch; | |
1226 | } | |
1227 | ||
1228 | if (*cur != '>') | |
1229 | { | |
1230 | *ptr = start; | |
1231 | return (NULL); | |
1232 | } | |
1233 | ||
1234 | cur ++; | |
1235 | } | |
1236 | break; | |
1237 | ||
1238 | case '>' : /* End dictionary? */ | |
1239 | if (cur[1] == '>') | |
1240 | { | |
1241 | obj.type = CUPS_PS_END_DICT; | |
1242 | cur += 2; | |
1243 | } | |
1244 | else | |
1245 | { | |
1246 | obj.type = CUPS_PS_OTHER; | |
1247 | obj.value.other[0] = *cur; | |
1248 | ||
1249 | cur ++; | |
1250 | } | |
1251 | break; | |
1252 | ||
1253 | case '{' : /* Start procedure */ | |
1254 | obj.type = CUPS_PS_START_PROC; | |
1255 | cur ++; | |
1256 | break; | |
1257 | ||
1258 | case '}' : /* End procedure */ | |
1259 | obj.type = CUPS_PS_END_PROC; | |
1260 | cur ++; | |
1261 | break; | |
1262 | ||
1263 | case '-' : /* Possible number */ | |
1264 | case '+' : | |
1265 | if (!isdigit(cur[1] & 255) && cur[1] != '.') | |
1266 | { | |
1267 | obj.type = CUPS_PS_OTHER; | |
1268 | obj.value.other[0] = *cur; | |
1269 | ||
1270 | cur ++; | |
1271 | break; | |
1272 | } | |
1273 | ||
1274 | case '0' : /* Number */ | |
1275 | case '1' : | |
1276 | case '2' : | |
1277 | case '3' : | |
1278 | case '4' : | |
1279 | case '5' : | |
1280 | case '6' : | |
1281 | case '7' : | |
1282 | case '8' : | |
1283 | case '9' : | |
1284 | case '.' : | |
1285 | obj.type = CUPS_PS_NUMBER; | |
1286 | ||
1287 | start = cur; | |
1288 | for (cur ++; *cur; cur ++) | |
1289 | if (!isdigit(*cur & 255)) | |
1290 | break; | |
1291 | ||
1292 | if (*cur == '#') | |
1293 | { | |
1294 | /* | |
1295 | * Integer with radix... | |
1296 | */ | |
1297 | ||
1298 | obj.value.number = strtol(cur + 1, &cur, atoi(start)); | |
1299 | break; | |
1300 | } | |
1301 | else if (strchr(".Ee()<>[]{}/%", *cur) || isspace(*cur & 255)) | |
1302 | { | |
1303 | /* | |
1304 | * Integer or real number... | |
1305 | */ | |
1306 | ||
1307 | obj.value.number = _cupsStrScand(start, &cur, localeconv()); | |
1308 | break; | |
1309 | } | |
1310 | else | |
1311 | cur = start; | |
1312 | ||
1313 | default : /* Operator/variable name */ | |
1314 | start = cur; | |
1315 | ||
1316 | if (*cur == '/') | |
1317 | { | |
1318 | obj.type = CUPS_PS_NAME; | |
1319 | valptr = obj.value.name; | |
1320 | valend = obj.value.name + sizeof(obj.value.name) - 1; | |
1321 | cur ++; | |
1322 | } | |
1323 | else | |
1324 | { | |
1325 | obj.type = CUPS_PS_OTHER; | |
1326 | valptr = obj.value.other; | |
1327 | valend = obj.value.other + sizeof(obj.value.other) - 1; | |
1328 | } | |
1329 | ||
1330 | while (*cur) | |
1331 | { | |
1332 | if (strchr("()<>[]{}/%", *cur) || isspace(*cur & 255)) | |
1333 | break; | |
1334 | else if (valptr < valend) | |
1335 | *valptr++ = *cur++; | |
1336 | else | |
1337 | { | |
1338 | *ptr = start; | |
1339 | return (NULL); | |
1340 | } | |
1341 | } | |
1342 | ||
1343 | if (obj.type == CUPS_PS_OTHER) | |
1344 | { | |
1345 | if (!strcmp(obj.value.other, "true")) | |
1346 | { | |
1347 | obj.type = CUPS_PS_BOOLEAN; | |
1348 | obj.value.boolean = 1; | |
1349 | } | |
1350 | else if (!strcmp(obj.value.other, "false")) | |
1351 | { | |
1352 | obj.type = CUPS_PS_BOOLEAN; | |
1353 | obj.value.boolean = 0; | |
1354 | } | |
1355 | else if (!strcmp(obj.value.other, "null")) | |
1356 | obj.type = CUPS_PS_NULL; | |
1357 | else if (!strcmp(obj.value.other, "cleartomark")) | |
1358 | obj.type = CUPS_PS_CLEARTOMARK; | |
1359 | else if (!strcmp(obj.value.other, "copy")) | |
1360 | obj.type = CUPS_PS_COPY; | |
1361 | else if (!strcmp(obj.value.other, "dup")) | |
1362 | obj.type = CUPS_PS_DUP; | |
1363 | else if (!strcmp(obj.value.other, "index")) | |
1364 | obj.type = CUPS_PS_INDEX; | |
1365 | else if (!strcmp(obj.value.other, "pop")) | |
1366 | obj.type = CUPS_PS_POP; | |
1367 | else if (!strcmp(obj.value.other, "roll")) | |
1368 | obj.type = CUPS_PS_ROLL; | |
1369 | else if (!strcmp(obj.value.other, "setpagedevice")) | |
1370 | obj.type = CUPS_PS_SETPAGEDEVICE; | |
1371 | else if (!strcmp(obj.value.other, "stopped")) | |
1372 | obj.type = CUPS_PS_STOPPED; | |
1373 | } | |
1374 | break; | |
1375 | } | |
1376 | ||
1377 | /* | |
1378 | * Save the current position in the string and return the new object... | |
1379 | */ | |
1380 | ||
1381 | *ptr = cur; | |
1382 | ||
1383 | return (push_stack(st, &obj)); | |
1384 | } | |
1385 | ||
1386 | ||
1387 | /* | |
1388 | * 'setpagedevice()' - Simulate the PostScript setpagedevice operator. | |
1389 | */ | |
1390 | ||
1391 | static int /* O - 0 on success, -1 on error */ | |
1392 | setpagedevice( | |
1393 | _cups_ps_stack_t *st, /* I - Stack */ | |
1394 | cups_page_header2_t *h, /* O - Page header */ | |
1395 | int *preferred_bits)/* O - Preferred bits per color */ | |
1396 | { | |
1397 | int i; /* Index into array */ | |
1398 | _cups_ps_obj_t *obj, /* Current object */ | |
1399 | *end; /* End of dictionary */ | |
1400 | const char *name; /* Attribute name */ | |
1401 | ||
1402 | ||
1403 | /* | |
1404 | * Make sure we have a dictionary on the stack... | |
1405 | */ | |
1406 | ||
1407 | if (st->num_objs == 0) | |
1408 | return (-1); | |
1409 | ||
1410 | obj = end = st->objs + st->num_objs - 1; | |
1411 | ||
1412 | if (obj->type != CUPS_PS_END_DICT) | |
1413 | return (-1); | |
1414 | ||
1415 | obj --; | |
1416 | ||
1417 | while (obj > st->objs) | |
1418 | { | |
1419 | if (obj->type == CUPS_PS_START_DICT) | |
1420 | break; | |
1421 | ||
1422 | obj --; | |
1423 | } | |
1424 | ||
1425 | if (obj < st->objs) | |
1426 | return (-1); | |
1427 | ||
1428 | /* | |
1429 | * Found the start of the dictionary, empty the stack to this point... | |
1430 | */ | |
1431 | ||
1432 | st->num_objs = (int)(obj - st->objs); | |
1433 | ||
1434 | /* | |
1435 | * Now pull /name and value pairs from the dictionary... | |
1436 | */ | |
1437 | ||
1438 | DEBUG_puts("setpagedevice: Dictionary:"); | |
1439 | ||
1440 | for (obj ++; obj < end; obj ++) | |
1441 | { | |
1442 | /* | |
1443 | * Grab the name... | |
1444 | */ | |
1445 | ||
1446 | if (obj->type != CUPS_PS_NAME) | |
1447 | return (-1); | |
1448 | ||
1449 | name = obj->value.name; | |
1450 | obj ++; | |
1451 | ||
1452 | #ifdef DEBUG | |
1453 | DEBUG_printf(("setpagedevice: /%s ", name)); | |
1454 | DEBUG_object(obj); | |
1455 | #endif /* DEBUG */ | |
1456 | ||
1457 | /* | |
1458 | * Then grab the value... | |
1459 | */ | |
1460 | ||
1461 | if (!strcmp(name, "MediaClass") && obj->type == CUPS_PS_STRING) | |
1462 | strlcpy(h->MediaClass, obj->value.string, sizeof(h->MediaClass)); | |
1463 | else if (!strcmp(name, "MediaColor") && obj->type == CUPS_PS_STRING) | |
1464 | strlcpy(h->MediaColor, obj->value.string, sizeof(h->MediaColor)); | |
1465 | else if (!strcmp(name, "MediaType") && obj->type == CUPS_PS_STRING) | |
1466 | strlcpy(h->MediaType, obj->value.string, sizeof(h->MediaType)); | |
1467 | else if (!strcmp(name, "OutputType") && obj->type == CUPS_PS_STRING) | |
1468 | strlcpy(h->OutputType, obj->value.string, sizeof(h->OutputType)); | |
1469 | else if (!strcmp(name, "AdvanceDistance") && obj->type == CUPS_PS_NUMBER) | |
1470 | h->AdvanceDistance = (unsigned)obj->value.number; | |
1471 | else if (!strcmp(name, "AdvanceMedia") && obj->type == CUPS_PS_NUMBER) | |
1472 | h->AdvanceMedia = (unsigned)obj->value.number; | |
1473 | else if (!strcmp(name, "Collate") && obj->type == CUPS_PS_BOOLEAN) | |
1474 | h->Collate = (unsigned)obj->value.boolean; | |
1475 | else if (!strcmp(name, "CutMedia") && obj->type == CUPS_PS_NUMBER) | |
1476 | h->CutMedia = (cups_cut_t)(unsigned)obj->value.number; | |
1477 | else if (!strcmp(name, "Duplex") && obj->type == CUPS_PS_BOOLEAN) | |
1478 | h->Duplex = (unsigned)obj->value.boolean; | |
1479 | else if (!strcmp(name, "HWResolution") && obj->type == CUPS_PS_START_ARRAY) | |
1480 | { | |
1481 | if (obj[1].type == CUPS_PS_NUMBER && obj[2].type == CUPS_PS_NUMBER && | |
1482 | obj[3].type == CUPS_PS_END_ARRAY) | |
1483 | { | |
1484 | h->HWResolution[0] = (unsigned)obj[1].value.number; | |
1485 | h->HWResolution[1] = (unsigned)obj[2].value.number; | |
1486 | obj += 3; | |
1487 | } | |
1488 | else | |
1489 | return (-1); | |
1490 | } | |
1491 | else if (!strcmp(name, "InsertSheet") && obj->type == CUPS_PS_BOOLEAN) | |
1492 | h->InsertSheet = (unsigned)obj->value.boolean; | |
1493 | else if (!strcmp(name, "Jog") && obj->type == CUPS_PS_NUMBER) | |
1494 | h->Jog = (unsigned)obj->value.number; | |
1495 | else if (!strcmp(name, "LeadingEdge") && obj->type == CUPS_PS_NUMBER) | |
1496 | h->LeadingEdge = (unsigned)obj->value.number; | |
1497 | else if (!strcmp(name, "ManualFeed") && obj->type == CUPS_PS_BOOLEAN) | |
1498 | h->ManualFeed = (unsigned)obj->value.boolean; | |
1499 | else if ((!strcmp(name, "cupsMediaPosition") || | |
1500 | !strcmp(name, "MediaPosition")) && obj->type == CUPS_PS_NUMBER) | |
1501 | { | |
1502 | /* | |
1503 | * cupsMediaPosition is supported for backwards compatibility only. | |
1504 | * We added it back in the Ghostscript 5.50 days to work around a | |
1505 | * bug in Ghostscript WRT handling of MediaPosition and setpagedevice. | |
1506 | * | |
1507 | * All new development should set MediaPosition... | |
1508 | */ | |
1509 | ||
1510 | h->MediaPosition = (unsigned)obj->value.number; | |
1511 | } | |
1512 | else if (!strcmp(name, "MediaWeight") && obj->type == CUPS_PS_NUMBER) | |
1513 | h->MediaWeight = (unsigned)obj->value.number; | |
1514 | else if (!strcmp(name, "MirrorPrint") && obj->type == CUPS_PS_BOOLEAN) | |
1515 | h->MirrorPrint = (unsigned)obj->value.boolean; | |
1516 | else if (!strcmp(name, "NegativePrint") && obj->type == CUPS_PS_BOOLEAN) | |
1517 | h->NegativePrint = (unsigned)obj->value.boolean; | |
1518 | else if (!strcmp(name, "NumCopies") && obj->type == CUPS_PS_NUMBER) | |
1519 | h->NumCopies = (unsigned)obj->value.number; | |
1520 | else if (!strcmp(name, "Orientation") && obj->type == CUPS_PS_NUMBER) | |
1521 | h->Orientation = (unsigned)obj->value.number; | |
1522 | else if (!strcmp(name, "OutputFaceUp") && obj->type == CUPS_PS_BOOLEAN) | |
1523 | h->OutputFaceUp = (unsigned)obj->value.boolean; | |
1524 | else if (!strcmp(name, "PageSize") && obj->type == CUPS_PS_START_ARRAY) | |
1525 | { | |
1526 | if (obj[1].type == CUPS_PS_NUMBER && obj[2].type == CUPS_PS_NUMBER && | |
1527 | obj[3].type == CUPS_PS_END_ARRAY) | |
1528 | { | |
1529 | h->cupsPageSize[0] = (float)obj[1].value.number; | |
1530 | h->cupsPageSize[1] = (float)obj[2].value.number; | |
1531 | ||
1532 | h->PageSize[0] = (unsigned)obj[1].value.number; | |
1533 | h->PageSize[1] = (unsigned)obj[2].value.number; | |
1534 | ||
1535 | obj += 3; | |
1536 | } | |
1537 | else | |
1538 | return (-1); | |
1539 | } | |
1540 | else if (!strcmp(name, "Separations") && obj->type == CUPS_PS_BOOLEAN) | |
1541 | h->Separations = (unsigned)obj->value.boolean; | |
1542 | else if (!strcmp(name, "TraySwitch") && obj->type == CUPS_PS_BOOLEAN) | |
1543 | h->TraySwitch = (unsigned)obj->value.boolean; | |
1544 | else if (!strcmp(name, "Tumble") && obj->type == CUPS_PS_BOOLEAN) | |
1545 | h->Tumble = (unsigned)obj->value.boolean; | |
1546 | else if (!strcmp(name, "cupsMediaType") && obj->type == CUPS_PS_NUMBER) | |
1547 | h->cupsMediaType = (unsigned)obj->value.number; | |
1548 | else if (!strcmp(name, "cupsBitsPerColor") && obj->type == CUPS_PS_NUMBER) | |
1549 | h->cupsBitsPerColor = (unsigned)obj->value.number; | |
1550 | else if (!strcmp(name, "cupsPreferredBitsPerColor") && | |
1551 | obj->type == CUPS_PS_NUMBER) | |
1552 | *preferred_bits = (int)obj->value.number; | |
1553 | else if (!strcmp(name, "cupsColorOrder") && obj->type == CUPS_PS_NUMBER) | |
1554 | h->cupsColorOrder = (cups_order_t)(unsigned)obj->value.number; | |
1555 | else if (!strcmp(name, "cupsColorSpace") && obj->type == CUPS_PS_NUMBER) | |
1556 | h->cupsColorSpace = (cups_cspace_t)(unsigned)obj->value.number; | |
1557 | else if (!strcmp(name, "cupsCompression") && obj->type == CUPS_PS_NUMBER) | |
1558 | h->cupsCompression = (unsigned)obj->value.number; | |
1559 | else if (!strcmp(name, "cupsRowCount") && obj->type == CUPS_PS_NUMBER) | |
1560 | h->cupsRowCount = (unsigned)obj->value.number; | |
1561 | else if (!strcmp(name, "cupsRowFeed") && obj->type == CUPS_PS_NUMBER) | |
1562 | h->cupsRowFeed = (unsigned)obj->value.number; | |
1563 | else if (!strcmp(name, "cupsRowStep") && obj->type == CUPS_PS_NUMBER) | |
1564 | h->cupsRowStep = (unsigned)obj->value.number; | |
1565 | else if (!strcmp(name, "cupsBorderlessScalingFactor") && | |
1566 | obj->type == CUPS_PS_NUMBER) | |
1567 | h->cupsBorderlessScalingFactor = (float)obj->value.number; | |
1568 | else if (!strncmp(name, "cupsInteger", 11) && obj->type == CUPS_PS_NUMBER) | |
1569 | { | |
1570 | if ((i = atoi(name + 11)) < 0 || i > 15) | |
1571 | return (-1); | |
1572 | ||
1573 | h->cupsInteger[i] = (unsigned)obj->value.number; | |
1574 | } | |
1575 | else if (!strncmp(name, "cupsReal", 8) && obj->type == CUPS_PS_NUMBER) | |
1576 | { | |
1577 | if ((i = atoi(name + 8)) < 0 || i > 15) | |
1578 | return (-1); | |
1579 | ||
1580 | h->cupsReal[i] = (float)obj->value.number; | |
1581 | } | |
1582 | else if (!strncmp(name, "cupsString", 10) && obj->type == CUPS_PS_STRING) | |
1583 | { | |
1584 | if ((i = atoi(name + 10)) < 0 || i > 15) | |
1585 | return (-1); | |
1586 | ||
1587 | strlcpy(h->cupsString[i], obj->value.string, sizeof(h->cupsString[i])); | |
1588 | } | |
1589 | else if (!strcmp(name, "cupsMarkerType") && obj->type == CUPS_PS_STRING) | |
1590 | strlcpy(h->cupsMarkerType, obj->value.string, sizeof(h->cupsMarkerType)); | |
1591 | else if (!strcmp(name, "cupsPageSizeName") && obj->type == CUPS_PS_STRING) | |
1592 | strlcpy(h->cupsPageSizeName, obj->value.string, | |
1593 | sizeof(h->cupsPageSizeName)); | |
1594 | else if (!strcmp(name, "cupsRenderingIntent") && | |
1595 | obj->type == CUPS_PS_STRING) | |
1596 | strlcpy(h->cupsRenderingIntent, obj->value.string, | |
1597 | sizeof(h->cupsRenderingIntent)); | |
1598 | else | |
1599 | { | |
1600 | /* | |
1601 | * Ignore unknown name+value... | |
1602 | */ | |
1603 | ||
1604 | DEBUG_printf((" Unknown name (\"%s\") or value...\n", name)); | |
1605 | ||
1606 | while (obj[1].type != CUPS_PS_NAME && obj < end) | |
1607 | obj ++; | |
1608 | } | |
1609 | } | |
1610 | ||
1611 | return (0); | |
1612 | } | |
1613 | ||
1614 | ||
1615 | #ifdef DEBUG | |
1616 | /* | |
1617 | * 'DEBUG_object()' - Print an object's value... | |
1618 | */ | |
1619 | ||
1620 | static void | |
1621 | DEBUG_object(_cups_ps_obj_t *obj) /* I - Object to print */ | |
1622 | { | |
1623 | switch (obj->type) | |
1624 | { | |
1625 | case CUPS_PS_NAME : | |
1626 | DEBUG_printf(("/%s\n", obj->value.name)); | |
1627 | break; | |
1628 | ||
1629 | case CUPS_PS_NUMBER : | |
1630 | DEBUG_printf(("%g\n", obj->value.number)); | |
1631 | break; | |
1632 | ||
1633 | case CUPS_PS_STRING : | |
1634 | DEBUG_printf(("(%s)\n", obj->value.string)); | |
1635 | break; | |
1636 | ||
1637 | case CUPS_PS_BOOLEAN : | |
1638 | if (obj->value.boolean) | |
1639 | DEBUG_puts("true"); | |
1640 | else | |
1641 | DEBUG_puts("false"); | |
1642 | break; | |
1643 | ||
1644 | case CUPS_PS_NULL : | |
1645 | DEBUG_puts("null"); | |
1646 | break; | |
1647 | ||
1648 | case CUPS_PS_START_ARRAY : | |
1649 | DEBUG_puts("["); | |
1650 | break; | |
1651 | ||
1652 | case CUPS_PS_END_ARRAY : | |
1653 | DEBUG_puts("]"); | |
1654 | break; | |
1655 | ||
1656 | case CUPS_PS_START_DICT : | |
1657 | DEBUG_puts("<<"); | |
1658 | break; | |
1659 | ||
1660 | case CUPS_PS_END_DICT : | |
1661 | DEBUG_puts(">>"); | |
1662 | break; | |
1663 | ||
1664 | case CUPS_PS_START_PROC : | |
1665 | DEBUG_puts("{"); | |
1666 | break; | |
1667 | ||
1668 | case CUPS_PS_END_PROC : | |
1669 | DEBUG_puts("}"); | |
1670 | break; | |
1671 | ||
1672 | case CUPS_PS_CLEARTOMARK : | |
1673 | DEBUG_puts("--cleartomark--"); | |
1674 | break; | |
1675 | ||
1676 | case CUPS_PS_COPY : | |
1677 | DEBUG_puts("--copy--"); | |
1678 | break; | |
1679 | ||
1680 | case CUPS_PS_DUP : | |
1681 | DEBUG_puts("--dup--"); | |
1682 | break; | |
1683 | ||
1684 | case CUPS_PS_INDEX : | |
1685 | DEBUG_puts("--index--"); | |
1686 | break; | |
1687 | ||
1688 | case CUPS_PS_POP : | |
1689 | DEBUG_puts("--pop--"); | |
1690 | break; | |
1691 | ||
1692 | case CUPS_PS_ROLL : | |
1693 | DEBUG_puts("--roll--"); | |
1694 | break; | |
1695 | ||
1696 | case CUPS_PS_SETPAGEDEVICE : | |
1697 | DEBUG_puts("--setpagedevice--"); | |
1698 | break; | |
1699 | ||
1700 | case CUPS_PS_STOPPED : | |
1701 | DEBUG_puts("--stopped--"); | |
1702 | break; | |
1703 | ||
1704 | case CUPS_PS_OTHER : | |
1705 | DEBUG_printf(("--%s--\n", obj->value.other)); | |
1706 | break; | |
1707 | } | |
1708 | } | |
1709 | ||
1710 | ||
1711 | /* | |
1712 | * 'DEBUG_stack()' - Print a stack... | |
1713 | */ | |
1714 | ||
1715 | static void | |
1716 | DEBUG_stack(_cups_ps_stack_t *st) /* I - Stack */ | |
1717 | { | |
1718 | int c; /* Looping var */ | |
1719 | _cups_ps_obj_t *obj; /* Current object on stack */ | |
1720 | ||
1721 | ||
1722 | for (obj = st->objs, c = st->num_objs; c > 0; c --, obj ++) | |
1723 | DEBUG_object(obj); | |
1724 | } | |
1725 | #endif /* DEBUG */ | |
1726 | ||
1727 | ||
1728 | /* | |
1729 | * End of "$Id$". | |
1730 | */ |