2 * PPD command interpreter for CUPS.
4 * Copyright 2007-2015 by Apple Inc.
5 * Copyright 1993-2007 by Easy Software Products.
7 * Licensed under Apache License v2.0. See the file "LICENSE" for more information.
11 * Include necessary headers...
14 #include <cups/raster-private.h>
19 * Stack values for the PostScript mini-interpreter...
41 CUPS_PS_SETPAGEDEVICE
,
48 _cups_ps_type_t type
; /* Object type */
51 int boolean
; /* Boolean value */
52 char name
[64]; /* Name value */
53 double number
; /* Number value */
54 char other
[64]; /* Other operator */
55 char string
[64]; /* Sring value */
61 int num_objs
, /* Number of objects on stack */
62 alloc_objs
; /* Number of allocated objects */
63 _cups_ps_obj_t
*objs
; /* Objects in stack */
71 static int cleartomark_stack(_cups_ps_stack_t
*st
);
72 static int copy_stack(_cups_ps_stack_t
*st
, int count
);
73 static void delete_stack(_cups_ps_stack_t
*st
);
74 static void error_object(_cups_ps_obj_t
*obj
);
75 static void error_stack(_cups_ps_stack_t
*st
, const char *title
);
76 static _cups_ps_obj_t
*index_stack(_cups_ps_stack_t
*st
, int n
);
77 static _cups_ps_stack_t
*new_stack(void);
78 static _cups_ps_obj_t
*pop_stack(_cups_ps_stack_t
*st
);
79 static _cups_ps_obj_t
*push_stack(_cups_ps_stack_t
*st
,
81 static int roll_stack(_cups_ps_stack_t
*st
, int c
, int s
);
82 static _cups_ps_obj_t
*scan_ps(_cups_ps_stack_t
*st
, char **ptr
);
83 static int setpagedevice(_cups_ps_stack_t
*st
,
84 cups_page_header2_t
*h
,
87 static void DEBUG_object(const char *prefix
, _cups_ps_obj_t
*obj
);
88 static void DEBUG_stack(const char *prefix
, _cups_ps_stack_t
*st
);
93 * 'cupsRasterInterpretPPD()' - Interpret PPD commands to create a page header.
95 * This function is used by raster image processing (RIP) filters like
96 * cgpdftoraster and imagetoraster when writing CUPS raster data for a page.
97 * It is not used by raster printer driver filters which only read CUPS
101 * @code cupsRasterInterpretPPD@ does not mark the options in the PPD using
102 * the "num_options" and "options" arguments. Instead, mark the options with
103 * @code cupsMarkOptions@ and @code ppdMarkOption@ prior to calling it -
104 * this allows for per-page options without manipulating the options array.
106 * The "func" argument specifies an optional callback function that is
107 * called prior to the computation of the final raster data. The function
108 * can make changes to the @link cups_page_header2_t@ data as needed to use a
109 * supported raster format and then returns 0 on success and -1 if the
110 * requested attributes cannot be supported.
113 * @code cupsRasterInterpretPPD@ supports a subset of the PostScript language.
114 * Currently only the @code [@, @code ]@, @code <<@, @code >>@, @code {@,
115 * @code }@, @code cleartomark@, @code copy@, @code dup@, @code index@,
116 * @code pop@, @code roll@, @code setpagedevice@, and @code stopped@ operators
119 * @since CUPS 1.2/macOS 10.5@
122 int /* O - 0 on success, -1 on failure */
123 cupsRasterInterpretPPD(
124 cups_page_header2_t
*h
, /* O - Page header to create */
125 ppd_file_t
*ppd
, /* I - PPD file */
126 int num_options
, /* I - Number of options */
127 cups_option_t
*options
, /* I - Options */
128 cups_interpret_cb_t func
) /* I - Optional page header callback (@code NULL@ for none) */
130 int status
; /* Cummulative status */
131 char *code
; /* Code to run */
132 const char *val
; /* Option value */
133 ppd_size_t
*size
; /* Current size */
134 float left
, /* Left position */
135 bottom
, /* Bottom position */
136 right
, /* Right position */
137 top
, /* Top position */
138 temp1
, temp2
; /* Temporary variables for swapping */
139 int preferred_bits
; /* Preferred bits per color */
143 * Range check input...
146 _cupsRasterClearError();
150 _cupsRasterAddError("Page header cannot be NULL!\n");
155 * Reset the page header to the defaults...
158 memset(h
, 0, sizeof(cups_page_header2_t
));
161 h
->PageSize
[0] = 612;
162 h
->PageSize
[1] = 792;
163 h
->HWResolution
[0] = 100;
164 h
->HWResolution
[1] = 100;
165 h
->cupsBitsPerColor
= 1;
166 h
->cupsColorOrder
= CUPS_ORDER_CHUNKED
;
167 h
->cupsColorSpace
= CUPS_CSPACE_K
;
168 h
->cupsBorderlessScalingFactor
= 1.0f
;
169 h
->cupsPageSize
[0] = 612.0f
;
170 h
->cupsPageSize
[1] = 792.0f
;
171 h
->cupsImagingBBox
[0] = 0.0f
;
172 h
->cupsImagingBBox
[1] = 0.0f
;
173 h
->cupsImagingBBox
[2] = 612.0f
;
174 h
->cupsImagingBBox
[3] = 792.0f
;
176 strlcpy(h
->cupsPageSizeName
, "Letter", sizeof(h
->cupsPageSizeName
));
180 * cupsInteger0 is also used for the total page count on macOS; set an
181 * uncommon default value so we can tell if the driver is using cupsInteger0.
184 h
->cupsInteger
[0] = 0x80000000;
185 #endif /* __APPLE__ */
188 * Apply patches and options to the page header...
197 * Apply any patch code (used to override the defaults...)
201 status
|= _cupsRasterExecPS(h
, &preferred_bits
, ppd
->patches
);
204 * Then apply printer options in the proper order...
207 if ((code
= ppdEmitString(ppd
, PPD_ORDER_DOCUMENT
, 0.0)) != NULL
)
209 status
|= _cupsRasterExecPS(h
, &preferred_bits
, code
);
213 if ((code
= ppdEmitString(ppd
, PPD_ORDER_ANY
, 0.0)) != NULL
)
215 status
|= _cupsRasterExecPS(h
, &preferred_bits
, code
);
219 if ((code
= ppdEmitString(ppd
, PPD_ORDER_PROLOG
, 0.0)) != NULL
)
221 status
|= _cupsRasterExecPS(h
, &preferred_bits
, code
);
225 if ((code
= ppdEmitString(ppd
, PPD_ORDER_PAGE
, 0.0)) != NULL
)
227 status
|= _cupsRasterExecPS(h
, &preferred_bits
, code
);
233 * Allow option override for page scaling...
236 if ((val
= cupsGetOption("cupsBorderlessScalingFactor", num_options
,
239 double sc
= atof(val
); /* Scale factor */
241 if (sc
>= 0.1 && sc
<= 2.0)
242 h
->cupsBorderlessScalingFactor
= (float)sc
;
246 * Get the margins for the current size...
249 if ((size
= ppdPageSize(ppd
, NULL
)) != NULL
)
252 * Use the margins from the PPD file...
256 bottom
= size
->bottom
;
260 strlcpy(h
->cupsPageSizeName
, size
->name
, sizeof(h
->cupsPageSizeName
));
262 h
->cupsPageSize
[0] = size
->width
;
263 h
->cupsPageSize
[1] = size
->length
;
268 * Use the default margins...
278 * Handle orientation...
281 switch (h
->Orientation
)
288 case CUPS_ORIENT_90
:
289 temp1
= h
->cupsPageSize
[0];
290 h
->cupsPageSize
[0] = h
->cupsPageSize
[1];
291 h
->cupsPageSize
[1] = temp1
;
295 left
= h
->cupsPageSize
[0] - top
;
296 right
= h
->cupsPageSize
[0] - bottom
;
297 bottom
= h
->cupsPageSize
[1] - temp1
;
298 top
= h
->cupsPageSize
[1] - temp2
;
301 case CUPS_ORIENT_180
:
304 left
= h
->cupsPageSize
[0] - right
;
305 right
= h
->cupsPageSize
[0] - temp1
;
306 bottom
= h
->cupsPageSize
[1] - top
;
307 top
= h
->cupsPageSize
[1] - temp2
;
310 case CUPS_ORIENT_270
:
311 temp1
= h
->cupsPageSize
[0];
312 h
->cupsPageSize
[0] = h
->cupsPageSize
[1];
313 h
->cupsPageSize
[1] = temp1
;
319 bottom
= h
->cupsPageSize
[1] - temp2
;
320 top
= h
->cupsPageSize
[1] - temp1
;
338 h
->PageSize
[0] = (unsigned)(h
->cupsPageSize
[0] *
339 h
->cupsBorderlessScalingFactor
);
340 h
->PageSize
[1] = (unsigned)(h
->cupsPageSize
[1] *
341 h
->cupsBorderlessScalingFactor
);
342 h
->Margins
[0] = (unsigned)(left
*
343 h
->cupsBorderlessScalingFactor
);
344 h
->Margins
[1] = (unsigned)(bottom
*
345 h
->cupsBorderlessScalingFactor
);
346 h
->ImagingBoundingBox
[0] = (unsigned)(left
*
347 h
->cupsBorderlessScalingFactor
);
348 h
->ImagingBoundingBox
[1] = (unsigned)(bottom
*
349 h
->cupsBorderlessScalingFactor
);
350 h
->ImagingBoundingBox
[2] = (unsigned)(right
*
351 h
->cupsBorderlessScalingFactor
);
352 h
->ImagingBoundingBox
[3] = (unsigned)(top
*
353 h
->cupsBorderlessScalingFactor
);
354 h
->cupsImagingBBox
[0] = (float)left
;
355 h
->cupsImagingBBox
[1] = (float)bottom
;
356 h
->cupsImagingBBox
[2] = (float)right
;
357 h
->cupsImagingBBox
[3] = (float)top
;
360 * Use the callback to validate the page header...
363 if (func
&& (*func
)(h
, preferred_bits
))
365 _cupsRasterAddError("Page header callback returned error.\n");
370 * Check parameters...
373 if (!h
->HWResolution
[0] || !h
->HWResolution
[1] ||
374 !h
->PageSize
[0] || !h
->PageSize
[1] ||
375 (h
->cupsBitsPerColor
!= 1 && h
->cupsBitsPerColor
!= 2 &&
376 h
->cupsBitsPerColor
!= 4 && h
->cupsBitsPerColor
!= 8 &&
377 h
->cupsBitsPerColor
!= 16) ||
378 h
->cupsBorderlessScalingFactor
< 0.1 ||
379 h
->cupsBorderlessScalingFactor
> 2.0)
381 _cupsRasterAddError("Page header uses unsupported values.\n");
386 * Compute the bitmap parameters...
389 h
->cupsWidth
= (unsigned)((right
- left
) * h
->cupsBorderlessScalingFactor
*
390 h
->HWResolution
[0] / 72.0f
+ 0.5f
);
391 h
->cupsHeight
= (unsigned)((top
- bottom
) * h
->cupsBorderlessScalingFactor
*
392 h
->HWResolution
[1] / 72.0f
+ 0.5f
);
394 switch (h
->cupsColorSpace
)
398 case CUPS_CSPACE_WHITE
:
399 case CUPS_CSPACE_GOLD
:
400 case CUPS_CSPACE_SILVER
:
401 case CUPS_CSPACE_SW
:
402 h
->cupsNumColors
= 1;
403 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
;
408 * Ensure that colorimetric colorspaces use at least 8 bits per
412 if (h
->cupsColorSpace
>= CUPS_CSPACE_CIEXYZ
&&
413 h
->cupsBitsPerColor
< 8)
414 h
->cupsBitsPerColor
= 8;
417 * Figure out the number of bits per pixel...
420 if (h
->cupsColorOrder
== CUPS_ORDER_CHUNKED
)
422 if (h
->cupsBitsPerColor
>= 8)
423 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
* 3;
425 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
* 4;
428 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
;
430 h
->cupsNumColors
= 3;
433 case CUPS_CSPACE_KCMYcm
:
434 if (h
->cupsBitsPerColor
== 1)
436 if (h
->cupsColorOrder
== CUPS_ORDER_CHUNKED
)
437 h
->cupsBitsPerPixel
= 8;
439 h
->cupsBitsPerPixel
= 1;
441 h
->cupsNumColors
= 6;
446 * Fall through to CMYK code...
449 case CUPS_CSPACE_RGBA
:
450 case CUPS_CSPACE_RGBW
:
451 case CUPS_CSPACE_CMYK
:
452 case CUPS_CSPACE_YMCK
:
453 case CUPS_CSPACE_KCMY
:
454 case CUPS_CSPACE_GMCK
:
455 case CUPS_CSPACE_GMCS
:
456 if (h
->cupsColorOrder
== CUPS_ORDER_CHUNKED
)
457 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
* 4;
459 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
;
461 h
->cupsNumColors
= 4;
464 case CUPS_CSPACE_DEVICE1
:
465 case CUPS_CSPACE_DEVICE2
:
466 case CUPS_CSPACE_DEVICE3
:
467 case CUPS_CSPACE_DEVICE4
:
468 case CUPS_CSPACE_DEVICE5
:
469 case CUPS_CSPACE_DEVICE6
:
470 case CUPS_CSPACE_DEVICE7
:
471 case CUPS_CSPACE_DEVICE8
:
472 case CUPS_CSPACE_DEVICE9
:
473 case CUPS_CSPACE_DEVICEA
:
474 case CUPS_CSPACE_DEVICEB
:
475 case CUPS_CSPACE_DEVICEC
:
476 case CUPS_CSPACE_DEVICED
:
477 case CUPS_CSPACE_DEVICEE
:
478 case CUPS_CSPACE_DEVICEF
:
479 h
->cupsNumColors
= h
->cupsColorSpace
- CUPS_CSPACE_DEVICE1
+ 1;
481 if (h
->cupsColorOrder
== CUPS_ORDER_CHUNKED
)
482 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
* h
->cupsNumColors
;
484 h
->cupsBitsPerPixel
= h
->cupsBitsPerColor
;
488 h
->cupsBytesPerLine
= (h
->cupsBitsPerPixel
* h
->cupsWidth
+ 7) / 8;
490 if (h
->cupsColorOrder
== CUPS_ORDER_BANDED
)
491 h
->cupsBytesPerLine
*= h
->cupsNumColors
;
498 * '_cupsRasterExecPS()' - Execute PostScript code to initialize a page header.
501 int /* O - 0 on success, -1 on error */
503 cups_page_header2_t
*h
, /* O - Page header */
504 int *preferred_bits
,/* O - Preferred bits per color */
505 const char *code
) /* I - PS code to execute */
507 int error
= 0; /* Error condition? */
508 _cups_ps_stack_t
*st
; /* PostScript value stack */
509 _cups_ps_obj_t
*obj
; /* Object from top of stack */
510 char *codecopy
, /* Copy of code */
511 *codeptr
; /* Pointer into copy of code */
514 DEBUG_printf(("_cupsRasterExecPS(h=%p, preferred_bits=%p, code=\"%s\")\n",
515 h
, preferred_bits
, code
));
518 * Copy the PostScript code and create a stack...
521 if ((codecopy
= strdup(code
)) == NULL
)
523 _cupsRasterAddError("Unable to duplicate code string.\n");
527 if ((st
= new_stack()) == NULL
)
529 _cupsRasterAddError("Unable to create stack.\n");
535 * Parse the PS string until we run out of data...
540 while ((obj
= scan_ps(st
, &codeptr
)) != NULL
)
543 DEBUG_printf(("_cupsRasterExecPS: Stack (%d objects)", st
->num_objs
));
544 DEBUG_object("_cupsRasterExecPS", obj
);
550 /* Do nothing for regular values */
553 case CUPS_PS_CLEARTOMARK
:
556 if (cleartomark_stack(st
))
557 _cupsRasterAddError("cleartomark: Stack underflow.\n");
560 DEBUG_puts("1_cupsRasterExecPS: dup");
561 DEBUG_stack("_cupsRasterExecPS", st
);
567 if ((obj
= pop_stack(st
)) != NULL
)
569 copy_stack(st
, (int)obj
->value
.number
);
572 DEBUG_puts("_cupsRasterExecPS: copy");
573 DEBUG_stack("_cupsRasterExecPS", st
);
583 DEBUG_puts("_cupsRasterExecPS: dup");
584 DEBUG_stack("_cupsRasterExecPS", st
);
590 if ((obj
= pop_stack(st
)) != NULL
)
592 index_stack(st
, (int)obj
->value
.number
);
595 DEBUG_puts("_cupsRasterExecPS: index");
596 DEBUG_stack("_cupsRasterExecPS", st
);
606 DEBUG_puts("_cupsRasterExecPS: pop");
607 DEBUG_stack("_cupsRasterExecPS", st
);
613 if ((obj
= pop_stack(st
)) != NULL
)
618 c
= (int)obj
->value
.number
;
620 if ((obj
= pop_stack(st
)) != NULL
)
622 roll_stack(st
, (int)obj
->value
.number
, c
);
625 DEBUG_puts("_cupsRasterExecPS: roll");
626 DEBUG_stack("_cupsRasterExecPS", st
);
632 case CUPS_PS_SETPAGEDEVICE
:
634 setpagedevice(st
, h
, preferred_bits
);
637 DEBUG_puts("_cupsRasterExecPS: setpagedevice");
638 DEBUG_stack("_cupsRasterExecPS", st
);
642 case CUPS_PS_START_PROC
:
643 case CUPS_PS_END_PROC
:
644 case CUPS_PS_STOPPED
:
649 _cupsRasterAddError("Unknown operator \"%s\".\n", obj
->value
.other
);
651 DEBUG_printf(("_cupsRasterExecPS: Unknown operator \"%s\".", obj
->value
.other
));
665 if (st
->num_objs
> 0)
667 error_stack(st
, "Stack not empty:");
670 DEBUG_puts("_cupsRasterExecPS: Stack not empty");
671 DEBUG_stack("_cupsRasterExecPS", st
);
690 * 'cleartomark_stack()' - Clear to the last mark ([) on the stack.
693 static int /* O - 0 on success, -1 on error */
694 cleartomark_stack(_cups_ps_stack_t
*st
) /* I - Stack */
696 _cups_ps_obj_t
*obj
; /* Current object on stack */
699 while ((obj
= pop_stack(st
)) != NULL
)
700 if (obj
->type
== CUPS_PS_START_ARRAY
)
703 return (obj
? 0 : -1);
708 * 'copy_stack()' - Copy the top N stack objects.
711 static int /* O - 0 on success, -1 on error */
712 copy_stack(_cups_ps_stack_t
*st
, /* I - Stack */
713 int c
) /* I - Number of objects to copy */
723 if ((n
= st
->num_objs
- c
) < 0)
728 if (!push_stack(st
, st
->objs
+ n
))
740 * 'delete_stack()' - Free memory used by a stack.
744 delete_stack(_cups_ps_stack_t
*st
) /* I - Stack */
752 * 'error_object()' - Add an object's value to the current error message.
756 error_object(_cups_ps_obj_t
*obj
) /* I - Object to add */
761 _cupsRasterAddError(" /%s", obj
->value
.name
);
764 case CUPS_PS_NUMBER
:
765 _cupsRasterAddError(" %g", obj
->value
.number
);
768 case CUPS_PS_STRING
:
769 _cupsRasterAddError(" (%s)", obj
->value
.string
);
772 case CUPS_PS_BOOLEAN
:
773 if (obj
->value
.boolean
)
774 _cupsRasterAddError(" true");
776 _cupsRasterAddError(" false");
780 _cupsRasterAddError(" null");
783 case CUPS_PS_START_ARRAY
:
784 _cupsRasterAddError(" [");
787 case CUPS_PS_END_ARRAY
:
788 _cupsRasterAddError(" ]");
791 case CUPS_PS_START_DICT
:
792 _cupsRasterAddError(" <<");
795 case CUPS_PS_END_DICT
:
796 _cupsRasterAddError(" >>");
799 case CUPS_PS_START_PROC
:
800 _cupsRasterAddError(" {");
803 case CUPS_PS_END_PROC
:
804 _cupsRasterAddError(" }");
808 _cupsRasterAddError(" --copy--");
811 case CUPS_PS_CLEARTOMARK
:
812 _cupsRasterAddError(" --cleartomark--");
816 _cupsRasterAddError(" --dup--");
820 _cupsRasterAddError(" --index--");
824 _cupsRasterAddError(" --pop--");
828 _cupsRasterAddError(" --roll--");
831 case CUPS_PS_SETPAGEDEVICE
:
832 _cupsRasterAddError(" --setpagedevice--");
835 case CUPS_PS_STOPPED
:
836 _cupsRasterAddError(" --stopped--");
840 _cupsRasterAddError(" --%s--", obj
->value
.other
);
847 * 'error_stack()' - Add a stack to the current error message...
851 error_stack(_cups_ps_stack_t
*st
, /* I - Stack */
852 const char *title
) /* I - Title string */
854 int c
; /* Looping var */
855 _cups_ps_obj_t
*obj
; /* Current object on stack */
858 _cupsRasterAddError("%s", title
);
860 for (obj
= st
->objs
, c
= st
->num_objs
; c
> 0; c
--, obj
++)
863 _cupsRasterAddError("\n");
868 * 'index_stack()' - Copy the Nth value on the stack.
871 static _cups_ps_obj_t
* /* O - New object */
872 index_stack(_cups_ps_stack_t
*st
, /* I - Stack */
873 int n
) /* I - Object index */
875 if (n
< 0 || (n
= st
->num_objs
- n
- 1) < 0)
878 return (push_stack(st
, st
->objs
+ n
));
883 * 'new_stack()' - Create a new stack.
886 static _cups_ps_stack_t
* /* O - New stack */
889 _cups_ps_stack_t
*st
; /* New stack */
892 if ((st
= calloc(1, sizeof(_cups_ps_stack_t
))) == NULL
)
897 if ((st
->objs
= calloc(32, sizeof(_cups_ps_obj_t
))) == NULL
)
908 * 'pop_stock()' - Pop the top object off the stack.
911 static _cups_ps_obj_t
* /* O - Object */
912 pop_stack(_cups_ps_stack_t
*st
) /* I - Stack */
914 if (st
->num_objs
> 0)
918 return (st
->objs
+ st
->num_objs
);
926 * 'push_stack()' - Push an object on the stack.
929 static _cups_ps_obj_t
* /* O - New object */
930 push_stack(_cups_ps_stack_t
*st
, /* I - Stack */
931 _cups_ps_obj_t
*obj
) /* I - Object */
933 _cups_ps_obj_t
*temp
; /* New object */
936 if (st
->num_objs
>= st
->alloc_objs
)
940 st
->alloc_objs
+= 32;
942 if ((temp
= realloc(st
->objs
, (size_t)st
->alloc_objs
*
943 sizeof(_cups_ps_obj_t
))) == NULL
)
947 memset(temp
+ st
->num_objs
, 0, 32 * sizeof(_cups_ps_obj_t
));
950 temp
= st
->objs
+ st
->num_objs
;
953 memcpy(temp
, obj
, sizeof(_cups_ps_obj_t
));
960 * 'roll_stack()' - Rotate stack objects.
963 static int /* O - 0 on success, -1 on error */
964 roll_stack(_cups_ps_stack_t
*st
, /* I - Stack */
965 int c
, /* I - Number of objects */
966 int s
) /* I - Amount to shift */
968 _cups_ps_obj_t
*temp
; /* Temporary array of objects */
969 int n
; /* Index into array */
972 DEBUG_printf(("3roll_stack(st=%p, s=%d, c=%d)", st
, s
, c
));
975 * Range check input...
983 if ((n
= st
->num_objs
- c
) < 0)
992 * Copy N objects and move things around...
1003 if ((temp
= calloc((size_t)s
, sizeof(_cups_ps_obj_t
))) == NULL
)
1006 memcpy(temp
, st
->objs
+ n
, (size_t)s
* sizeof(_cups_ps_obj_t
));
1007 memmove(st
->objs
+ n
, st
->objs
+ n
+ s
, (size_t)(c
- s
) * sizeof(_cups_ps_obj_t
));
1008 memcpy(st
->objs
+ n
+ c
- s
, temp
, (size_t)s
* sizeof(_cups_ps_obj_t
));
1016 if ((temp
= calloc((size_t)s
, sizeof(_cups_ps_obj_t
))) == NULL
)
1019 memcpy(temp
, st
->objs
+ n
+ c
- s
, (size_t)s
* sizeof(_cups_ps_obj_t
));
1020 memmove(st
->objs
+ n
+ s
, st
->objs
+ n
, (size_t)(c
- s
) * sizeof(_cups_ps_obj_t
));
1021 memcpy(st
->objs
+ n
, temp
, (size_t)s
* sizeof(_cups_ps_obj_t
));
1031 * 'scan_ps()' - Scan a string for the next PS object.
1034 static _cups_ps_obj_t
* /* O - New object or NULL on EOF */
1035 scan_ps(_cups_ps_stack_t
*st
, /* I - Stack */
1036 char **ptr
) /* IO - String pointer */
1038 _cups_ps_obj_t obj
; /* Current object */
1039 char *start
, /* Start of object */
1040 *cur
, /* Current position */
1041 *valptr
, /* Pointer into value string */
1042 *valend
; /* End of value string */
1043 int parens
; /* Parenthesis nesting level */
1047 * Skip leading whitespace...
1050 for (cur
= *ptr
; *cur
; cur
++)
1055 * Comment, skip to end of line...
1058 for (cur
++; *cur
&& *cur
!= '\n' && *cur
!= '\r'; cur
++);
1063 else if (!isspace(*cur
& 255))
1075 * See what we have...
1078 memset(&obj
, 0, sizeof(obj
));
1082 case '(' : /* (string) */
1083 obj
.type
= CUPS_PS_STRING
;
1086 for (cur
++, parens
= 1, valptr
= obj
.value
.string
,
1087 valend
= obj
.value
.string
+ sizeof(obj
.value
.string
) - 1;
1091 if (*cur
== ')' && parens
== 1)
1096 else if (*cur
== ')')
1099 if (valptr
>= valend
)
1109 * Decode escaped character...
1116 else if (*cur
== 'f')
1118 else if (*cur
== 'n')
1120 else if (*cur
== 'r')
1122 else if (*cur
== 't')
1124 else if (*cur
>= '0' && *cur
<= '7')
1126 int ch
= *cur
- '0';
1128 if (cur
[1] >= '0' && cur
[1] <= '7')
1131 ch
= (ch
<< 3) + *cur
- '0';
1134 if (cur
[1] >= '0' && cur
[1] <= '7')
1137 ch
= (ch
<< 3) + *cur
- '0';
1140 *valptr
++ = (char)ch
;
1142 else if (*cur
== '\r')
1147 else if (*cur
!= '\n')
1164 case '[' : /* Start array */
1165 obj
.type
= CUPS_PS_START_ARRAY
;
1169 case ']' : /* End array */
1170 obj
.type
= CUPS_PS_END_ARRAY
;
1174 case '<' : /* Start dictionary or hex string */
1177 obj
.type
= CUPS_PS_START_DICT
;
1182 obj
.type
= CUPS_PS_STRING
;
1185 for (cur
++, valptr
= obj
.value
.string
,
1186 valend
= obj
.value
.string
+ sizeof(obj
.value
.string
) - 1;
1190 int ch
; /* Current character */
1196 else if (valptr
>= valend
|| !isxdigit(*cur
& 255))
1202 if (*cur
>= '0' && *cur
<= '9')
1203 ch
= (*cur
- '0') << 4;
1205 ch
= (tolower(*cur
) - 'a' + 10) << 4;
1207 if (isxdigit(cur
[1] & 255))
1211 if (*cur
>= '0' && *cur
<= '9')
1214 ch
|= tolower(*cur
) - 'a' + 10;
1217 *valptr
++ = (char)ch
;
1230 case '>' : /* End dictionary? */
1233 obj
.type
= CUPS_PS_END_DICT
;
1238 obj
.type
= CUPS_PS_OTHER
;
1239 obj
.value
.other
[0] = *cur
;
1245 case '{' : /* Start procedure */
1246 obj
.type
= CUPS_PS_START_PROC
;
1250 case '}' : /* End procedure */
1251 obj
.type
= CUPS_PS_END_PROC
;
1255 case '-' : /* Possible number */
1257 if (!isdigit(cur
[1] & 255) && cur
[1] != '.')
1259 obj
.type
= CUPS_PS_OTHER
;
1260 obj
.value
.other
[0] = *cur
;
1266 case '0' : /* Number */
1277 obj
.type
= CUPS_PS_NUMBER
;
1280 for (cur
++; *cur
; cur
++)
1281 if (!isdigit(*cur
& 255))
1287 * Integer with radix...
1290 obj
.value
.number
= strtol(cur
+ 1, &cur
, atoi(start
));
1293 else if (strchr(".Ee()<>[]{}/%", *cur
) || isspace(*cur
& 255))
1296 * Integer or real number...
1299 obj
.value
.number
= _cupsStrScand(start
, &cur
, localeconv());
1305 default : /* Operator/variable name */
1310 obj
.type
= CUPS_PS_NAME
;
1311 valptr
= obj
.value
.name
;
1312 valend
= obj
.value
.name
+ sizeof(obj
.value
.name
) - 1;
1317 obj
.type
= CUPS_PS_OTHER
;
1318 valptr
= obj
.value
.other
;
1319 valend
= obj
.value
.other
+ sizeof(obj
.value
.other
) - 1;
1324 if (strchr("()<>[]{}/%", *cur
) || isspace(*cur
& 255))
1326 else if (valptr
< valend
)
1335 if (obj
.type
== CUPS_PS_OTHER
)
1337 if (!strcmp(obj
.value
.other
, "true"))
1339 obj
.type
= CUPS_PS_BOOLEAN
;
1340 obj
.value
.boolean
= 1;
1342 else if (!strcmp(obj
.value
.other
, "false"))
1344 obj
.type
= CUPS_PS_BOOLEAN
;
1345 obj
.value
.boolean
= 0;
1347 else if (!strcmp(obj
.value
.other
, "null"))
1348 obj
.type
= CUPS_PS_NULL
;
1349 else if (!strcmp(obj
.value
.other
, "cleartomark"))
1350 obj
.type
= CUPS_PS_CLEARTOMARK
;
1351 else if (!strcmp(obj
.value
.other
, "copy"))
1352 obj
.type
= CUPS_PS_COPY
;
1353 else if (!strcmp(obj
.value
.other
, "dup"))
1354 obj
.type
= CUPS_PS_DUP
;
1355 else if (!strcmp(obj
.value
.other
, "index"))
1356 obj
.type
= CUPS_PS_INDEX
;
1357 else if (!strcmp(obj
.value
.other
, "pop"))
1358 obj
.type
= CUPS_PS_POP
;
1359 else if (!strcmp(obj
.value
.other
, "roll"))
1360 obj
.type
= CUPS_PS_ROLL
;
1361 else if (!strcmp(obj
.value
.other
, "setpagedevice"))
1362 obj
.type
= CUPS_PS_SETPAGEDEVICE
;
1363 else if (!strcmp(obj
.value
.other
, "stopped"))
1364 obj
.type
= CUPS_PS_STOPPED
;
1370 * Save the current position in the string and return the new object...
1375 return (push_stack(st
, &obj
));
1380 * 'setpagedevice()' - Simulate the PostScript setpagedevice operator.
1383 static int /* O - 0 on success, -1 on error */
1385 _cups_ps_stack_t
*st
, /* I - Stack */
1386 cups_page_header2_t
*h
, /* O - Page header */
1387 int *preferred_bits
)/* O - Preferred bits per color */
1389 int i
; /* Index into array */
1390 _cups_ps_obj_t
*obj
, /* Current object */
1391 *end
; /* End of dictionary */
1392 const char *name
; /* Attribute name */
1396 * Make sure we have a dictionary on the stack...
1399 if (st
->num_objs
== 0)
1402 obj
= end
= st
->objs
+ st
->num_objs
- 1;
1404 if (obj
->type
!= CUPS_PS_END_DICT
)
1409 while (obj
> st
->objs
)
1411 if (obj
->type
== CUPS_PS_START_DICT
)
1421 * Found the start of the dictionary, empty the stack to this point...
1424 st
->num_objs
= (int)(obj
- st
->objs
);
1427 * Now pull /name and value pairs from the dictionary...
1430 DEBUG_puts("3setpagedevice: Dictionary:");
1432 for (obj
++; obj
< end
; obj
++)
1438 if (obj
->type
!= CUPS_PS_NAME
)
1441 name
= obj
->value
.name
;
1445 DEBUG_printf(("4setpagedevice: /%s ", name
));
1446 DEBUG_object("setpagedevice", obj
);
1450 * Then grab the value...
1453 if (!strcmp(name
, "MediaClass") && obj
->type
== CUPS_PS_STRING
)
1454 strlcpy(h
->MediaClass
, obj
->value
.string
, sizeof(h
->MediaClass
));
1455 else if (!strcmp(name
, "MediaColor") && obj
->type
== CUPS_PS_STRING
)
1456 strlcpy(h
->MediaColor
, obj
->value
.string
, sizeof(h
->MediaColor
));
1457 else if (!strcmp(name
, "MediaType") && obj
->type
== CUPS_PS_STRING
)
1458 strlcpy(h
->MediaType
, obj
->value
.string
, sizeof(h
->MediaType
));
1459 else if (!strcmp(name
, "OutputType") && obj
->type
== CUPS_PS_STRING
)
1460 strlcpy(h
->OutputType
, obj
->value
.string
, sizeof(h
->OutputType
));
1461 else if (!strcmp(name
, "AdvanceDistance") && obj
->type
== CUPS_PS_NUMBER
)
1462 h
->AdvanceDistance
= (unsigned)obj
->value
.number
;
1463 else if (!strcmp(name
, "AdvanceMedia") && obj
->type
== CUPS_PS_NUMBER
)
1464 h
->AdvanceMedia
= (unsigned)obj
->value
.number
;
1465 else if (!strcmp(name
, "Collate") && obj
->type
== CUPS_PS_BOOLEAN
)
1466 h
->Collate
= (unsigned)obj
->value
.boolean
;
1467 else if (!strcmp(name
, "CutMedia") && obj
->type
== CUPS_PS_NUMBER
)
1468 h
->CutMedia
= (cups_cut_t
)(unsigned)obj
->value
.number
;
1469 else if (!strcmp(name
, "Duplex") && obj
->type
== CUPS_PS_BOOLEAN
)
1470 h
->Duplex
= (unsigned)obj
->value
.boolean
;
1471 else if (!strcmp(name
, "HWResolution") && obj
->type
== CUPS_PS_START_ARRAY
)
1473 if (obj
[1].type
== CUPS_PS_NUMBER
&& obj
[2].type
== CUPS_PS_NUMBER
&&
1474 obj
[3].type
== CUPS_PS_END_ARRAY
)
1476 h
->HWResolution
[0] = (unsigned)obj
[1].value
.number
;
1477 h
->HWResolution
[1] = (unsigned)obj
[2].value
.number
;
1483 else if (!strcmp(name
, "InsertSheet") && obj
->type
== CUPS_PS_BOOLEAN
)
1484 h
->InsertSheet
= (unsigned)obj
->value
.boolean
;
1485 else if (!strcmp(name
, "Jog") && obj
->type
== CUPS_PS_NUMBER
)
1486 h
->Jog
= (unsigned)obj
->value
.number
;
1487 else if (!strcmp(name
, "LeadingEdge") && obj
->type
== CUPS_PS_NUMBER
)
1488 h
->LeadingEdge
= (unsigned)obj
->value
.number
;
1489 else if (!strcmp(name
, "ManualFeed") && obj
->type
== CUPS_PS_BOOLEAN
)
1490 h
->ManualFeed
= (unsigned)obj
->value
.boolean
;
1491 else if ((!strcmp(name
, "cupsMediaPosition") ||
1492 !strcmp(name
, "MediaPosition")) && obj
->type
== CUPS_PS_NUMBER
)
1495 * cupsMediaPosition is supported for backwards compatibility only.
1496 * We added it back in the Ghostscript 5.50 days to work around a
1497 * bug in Ghostscript WRT handling of MediaPosition and setpagedevice.
1499 * All new development should set MediaPosition...
1502 h
->MediaPosition
= (unsigned)obj
->value
.number
;
1504 else if (!strcmp(name
, "MediaWeight") && obj
->type
== CUPS_PS_NUMBER
)
1505 h
->MediaWeight
= (unsigned)obj
->value
.number
;
1506 else if (!strcmp(name
, "MirrorPrint") && obj
->type
== CUPS_PS_BOOLEAN
)
1507 h
->MirrorPrint
= (unsigned)obj
->value
.boolean
;
1508 else if (!strcmp(name
, "NegativePrint") && obj
->type
== CUPS_PS_BOOLEAN
)
1509 h
->NegativePrint
= (unsigned)obj
->value
.boolean
;
1510 else if (!strcmp(name
, "NumCopies") && obj
->type
== CUPS_PS_NUMBER
)
1511 h
->NumCopies
= (unsigned)obj
->value
.number
;
1512 else if (!strcmp(name
, "Orientation") && obj
->type
== CUPS_PS_NUMBER
)
1513 h
->Orientation
= (unsigned)obj
->value
.number
;
1514 else if (!strcmp(name
, "OutputFaceUp") && obj
->type
== CUPS_PS_BOOLEAN
)
1515 h
->OutputFaceUp
= (unsigned)obj
->value
.boolean
;
1516 else if (!strcmp(name
, "PageSize") && obj
->type
== CUPS_PS_START_ARRAY
)
1518 if (obj
[1].type
== CUPS_PS_NUMBER
&& obj
[2].type
== CUPS_PS_NUMBER
&&
1519 obj
[3].type
== CUPS_PS_END_ARRAY
)
1521 h
->cupsPageSize
[0] = (float)obj
[1].value
.number
;
1522 h
->cupsPageSize
[1] = (float)obj
[2].value
.number
;
1524 h
->PageSize
[0] = (unsigned)obj
[1].value
.number
;
1525 h
->PageSize
[1] = (unsigned)obj
[2].value
.number
;
1532 else if (!strcmp(name
, "Separations") && obj
->type
== CUPS_PS_BOOLEAN
)
1533 h
->Separations
= (unsigned)obj
->value
.boolean
;
1534 else if (!strcmp(name
, "TraySwitch") && obj
->type
== CUPS_PS_BOOLEAN
)
1535 h
->TraySwitch
= (unsigned)obj
->value
.boolean
;
1536 else if (!strcmp(name
, "Tumble") && obj
->type
== CUPS_PS_BOOLEAN
)
1537 h
->Tumble
= (unsigned)obj
->value
.boolean
;
1538 else if (!strcmp(name
, "cupsMediaType") && obj
->type
== CUPS_PS_NUMBER
)
1539 h
->cupsMediaType
= (unsigned)obj
->value
.number
;
1540 else if (!strcmp(name
, "cupsBitsPerColor") && obj
->type
== CUPS_PS_NUMBER
)
1541 h
->cupsBitsPerColor
= (unsigned)obj
->value
.number
;
1542 else if (!strcmp(name
, "cupsPreferredBitsPerColor") &&
1543 obj
->type
== CUPS_PS_NUMBER
)
1544 *preferred_bits
= (int)obj
->value
.number
;
1545 else if (!strcmp(name
, "cupsColorOrder") && obj
->type
== CUPS_PS_NUMBER
)
1546 h
->cupsColorOrder
= (cups_order_t
)(unsigned)obj
->value
.number
;
1547 else if (!strcmp(name
, "cupsColorSpace") && obj
->type
== CUPS_PS_NUMBER
)
1548 h
->cupsColorSpace
= (cups_cspace_t
)(unsigned)obj
->value
.number
;
1549 else if (!strcmp(name
, "cupsCompression") && obj
->type
== CUPS_PS_NUMBER
)
1550 h
->cupsCompression
= (unsigned)obj
->value
.number
;
1551 else if (!strcmp(name
, "cupsRowCount") && obj
->type
== CUPS_PS_NUMBER
)
1552 h
->cupsRowCount
= (unsigned)obj
->value
.number
;
1553 else if (!strcmp(name
, "cupsRowFeed") && obj
->type
== CUPS_PS_NUMBER
)
1554 h
->cupsRowFeed
= (unsigned)obj
->value
.number
;
1555 else if (!strcmp(name
, "cupsRowStep") && obj
->type
== CUPS_PS_NUMBER
)
1556 h
->cupsRowStep
= (unsigned)obj
->value
.number
;
1557 else if (!strcmp(name
, "cupsBorderlessScalingFactor") &&
1558 obj
->type
== CUPS_PS_NUMBER
)
1559 h
->cupsBorderlessScalingFactor
= (float)obj
->value
.number
;
1560 else if (!strncmp(name
, "cupsInteger", 11) && obj
->type
== CUPS_PS_NUMBER
)
1562 if ((i
= atoi(name
+ 11)) < 0 || i
> 15)
1565 h
->cupsInteger
[i
] = (unsigned)obj
->value
.number
;
1567 else if (!strncmp(name
, "cupsReal", 8) && obj
->type
== CUPS_PS_NUMBER
)
1569 if ((i
= atoi(name
+ 8)) < 0 || i
> 15)
1572 h
->cupsReal
[i
] = (float)obj
->value
.number
;
1574 else if (!strncmp(name
, "cupsString", 10) && obj
->type
== CUPS_PS_STRING
)
1576 if ((i
= atoi(name
+ 10)) < 0 || i
> 15)
1579 strlcpy(h
->cupsString
[i
], obj
->value
.string
, sizeof(h
->cupsString
[i
]));
1581 else if (!strcmp(name
, "cupsMarkerType") && obj
->type
== CUPS_PS_STRING
)
1582 strlcpy(h
->cupsMarkerType
, obj
->value
.string
, sizeof(h
->cupsMarkerType
));
1583 else if (!strcmp(name
, "cupsPageSizeName") && obj
->type
== CUPS_PS_STRING
)
1584 strlcpy(h
->cupsPageSizeName
, obj
->value
.string
,
1585 sizeof(h
->cupsPageSizeName
));
1586 else if (!strcmp(name
, "cupsRenderingIntent") &&
1587 obj
->type
== CUPS_PS_STRING
)
1588 strlcpy(h
->cupsRenderingIntent
, obj
->value
.string
,
1589 sizeof(h
->cupsRenderingIntent
));
1593 * Ignore unknown name+value...
1596 DEBUG_printf(("4setpagedevice: Unknown name (\"%s\") or value...\n", name
));
1598 while (obj
[1].type
!= CUPS_PS_NAME
&& obj
< end
)
1609 * 'DEBUG_object()' - Print an object's value...
1613 DEBUG_object(const char *prefix
, /* I - Prefix string */
1614 _cups_ps_obj_t
*obj
) /* I - Object to print */
1619 DEBUG_printf(("4%s: /%s\n", prefix
, obj
->value
.name
));
1622 case CUPS_PS_NUMBER
:
1623 DEBUG_printf(("4%s: %g\n", prefix
, obj
->value
.number
));
1626 case CUPS_PS_STRING
:
1627 DEBUG_printf(("4%s: (%s)\n", prefix
, obj
->value
.string
));
1630 case CUPS_PS_BOOLEAN
:
1631 if (obj
->value
.boolean
)
1632 DEBUG_printf(("4%s: true", prefix
));
1634 DEBUG_printf(("4%s: false", prefix
));
1638 DEBUG_printf(("4%s: null", prefix
));
1641 case CUPS_PS_START_ARRAY
:
1642 DEBUG_printf(("4%s: [", prefix
));
1645 case CUPS_PS_END_ARRAY
:
1646 DEBUG_printf(("4%s: ]", prefix
));
1649 case CUPS_PS_START_DICT
:
1650 DEBUG_printf(("4%s: <<", prefix
));
1653 case CUPS_PS_END_DICT
:
1654 DEBUG_printf(("4%s: >>", prefix
));
1657 case CUPS_PS_START_PROC
:
1658 DEBUG_printf(("4%s: {", prefix
));
1661 case CUPS_PS_END_PROC
:
1662 DEBUG_printf(("4%s: }", prefix
));
1665 case CUPS_PS_CLEARTOMARK
:
1666 DEBUG_printf(("4%s: --cleartomark--", prefix
));
1670 DEBUG_printf(("4%s: --copy--", prefix
));
1674 DEBUG_printf(("4%s: --dup--", prefix
));
1677 case CUPS_PS_INDEX
:
1678 DEBUG_printf(("4%s: --index--", prefix
));
1682 DEBUG_printf(("4%s: --pop--", prefix
));
1686 DEBUG_printf(("4%s: --roll--", prefix
));
1689 case CUPS_PS_SETPAGEDEVICE
:
1690 DEBUG_printf(("4%s: --setpagedevice--", prefix
));
1693 case CUPS_PS_STOPPED
:
1694 DEBUG_printf(("4%s: --stopped--", prefix
));
1697 case CUPS_PS_OTHER
:
1698 DEBUG_printf(("4%s: --%s--", prefix
, obj
->value
.other
));
1705 * 'DEBUG_stack()' - Print a stack...
1709 DEBUG_stack(const char *prefix
, /* I - Prefix string */
1710 _cups_ps_stack_t
*st
) /* I - Stack */
1712 int c
; /* Looping var */
1713 _cups_ps_obj_t
*obj
; /* Current object on stack */
1716 for (obj
= st
->objs
, c
= st
->num_objs
; c
> 0; c
--, obj
++)
1717 DEBUG_object(prefix
, obj
);