53 lines
1.9 KiB
Diff
53 lines
1.9 KiB
Diff
|
From 329e0a6d187cc5b5698689d76636ed3214d7efa7 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Chris Liddell <chris.liddell@artifex.com>
|
||
|
|
Date: Thu, 3 Nov 2016 13:09:27 +0000
|
||
|
|
Subject: [PATCH] Bug 697286: handle GlyphDirectory as an array
|
||
|
|
|
||
|
|
For high level devices that need to copy CIDFonts, we need to establish the
|
||
|
|
highest CID in a given CIDFont. If the font has a GlyphDirectory dictionary
|
||
|
|
the only way to do so is to iterate through the keys to find the highest.
|
||
|
|
|
||
|
|
The code handling this ignored that the GlyphDirectory could be an array,
|
||
|
|
which confused the dictionary content iterator, and caused a segfault.
|
||
|
|
|
||
|
|
In the case of an array, set the high CID to the highest index available in the
|
||
|
|
array.
|
||
|
|
---
|
||
|
|
psi/zfcid.c | 18 +++++++++++-------
|
||
|
|
1 file changed, 11 insertions(+), 7 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/psi/zfcid.c b/psi/zfcid.c
|
||
|
|
index ce583af..3098a22 100644
|
||
|
|
--- a/psi/zfcid.c
|
||
|
|
+++ b/psi/zfcid.c
|
||
|
|
@@ -76,15 +76,19 @@ cid_font_data_param(os_ptr op, gs_font_cid_data *pdata, ref *pGlyphDirectory)
|
||
|
|
* the number of CIDs in the font. We need to know the maximum CID
|
||
|
|
* when copying fonts, so calculate and store it now.
|
||
|
|
*/
|
||
|
|
- index = dict_first(pgdir);
|
||
|
|
- while (index >= 0) {
|
||
|
|
- index = dict_next(pgdir, index, (ref *)&element);
|
||
|
|
- if (index >= 0) {
|
||
|
|
- if (element[0].value.intval > pdata->MaxCID)
|
||
|
|
- pdata->MaxCID = element[0].value.intval;
|
||
|
|
+ if (r_has_type(pgdir, t_dictionary)) {
|
||
|
|
+ index = dict_first(pgdir);
|
||
|
|
+ while (index >= 0) {
|
||
|
|
+ index = dict_next(pgdir, index, (ref *)&element);
|
||
|
|
+ if (index >= 0) {
|
||
|
|
+ if (element[0].value.intval > pdata->MaxCID)
|
||
|
|
+ pdata->MaxCID = element[0].value.intval;
|
||
|
|
+ }
|
||
|
|
}
|
||
|
|
}
|
||
|
|
-
|
||
|
|
+ else {
|
||
|
|
+ pdata->MaxCID = r_size(pgdir) - 1;
|
||
|
|
+ }
|
||
|
|
return code;
|
||
|
|
} else {
|
||
|
|
return_error(gs_error_typecheck);
|
||
|
|
--
|
||
|
|
2.7.4
|
||
|
|
|