Public bug reported:
My OS:
Description: Ubuntu 20.04.2 LTS
Release: 20.04
Package version: cups-filters version 1.27.4-1
When I try to print djvu files on my Xerox WorkCentre 3210 gstoraster filter,
which calls ghostscript inside runs to long while converting djvu files to
Xerox`s 3210 format.
E.x.: For 155 pages of djvu files, it runs more then 15 minutes.
I found a solution by adding -dDEVICEWIDTHPOINTS -dDEVICEHEIGHTPOINTS params to
ghostscript command inside gstoraster filter. Now the time of converting the
same file is about 30 seconds.
I`ve made patch which solves this problem.
--- a/filter/gstoraster.c
+++ b/filter/gstoraster.c
@@ -733,8 +733,17 @@
char output[31] = "";
int pagecount;
size_t bytes;
- snprintf(gscommand, 65536, "%s -q -dNOPAUSE -dBATCH -sDEVICE=bbox %s 2>&1
| grep -c HiResBoundingBox",
- CUPS_GHOSTSCRIPT, filename);
+ // Ghostscript runs to long while converting djvu files to Xerox`s 3210
format
+ // Using -dDEVICEWIDTHPOINTS -dDEVICEHEIGHTPOINTS params solves the problem
+ if (ppd) {
+ cupsRasterInterpretPPD(&h,ppd,num_options,options,0);
+ snprintf(gscommand, 65536, "%s -q -dNOPAUSE -dBATCH
-dDEVICEWIDTHPOINTS=%d -dDEVICEHEIGHTPOINTS=%d -sDEVICE=bbox %s 2>&1 | grep -c
HiResBoundingBox",
+ CUPS_GHOSTSCRIPT, h.PageSize[0], h.PageSize[1], filename);
+ }
+ else {
+ snprintf(gscommand, 65536, "%s -q -dNOPAUSE -dBATCH -sDEVICE=bbox %s
2>&1 | grep -c HiResBoundingBox",
+ CUPS_GHOSTSCRIPT, filename);
+ }
FILE *pd = popen(gscommand, "r");
if (!pd) {
** Affects: cups-filters (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "Fix patch"
https://bugs.launchpad.net/bugs/1920730/+attachment/5478963/+files/djvu-on-workcentre-3210.patch
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https://bugs.launchpad.net/bugs/1920730
Title:
gstoraster: Ghostscript runs to long while converting djvu files to
Xerox`s 3210 format
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