vcl/source/fontsubset/sft.cxx | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
New commits:
commit bb67f10786fd5e232b198d09139c41078c3fc60d
Author: Khaled Hosny <kha...@aliftype.com>
AuthorDate: Mon Oct 3 00:21:47 2022 +0200
Commit: خالد حسني <kha...@aliftype.com>
CommitDate: Mon Oct 3 05:49:33 2022 +0200
tdf#112152: Fix subsetting empty glyphs
When traversing the components of composite glyphs, the code was
treating a component pointing to an empty glyph (e.g. space) as an
error, but it is not. An overzealous bounds check.
Regression from:
commit 41007842ed9bb5d6165792a197769f72dae55a2c
Author: Martin Hosken <martin_hos...@sil.org>
Date: Thu Sep 10 10:14:18 2015 +0700
Refactor graphite integration and update graphite
Change-Id: Ie352f17cb08cd5762ff2a339662248a536b4e934
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/140897
Tested-by: Jenkins
Reviewed-by: خالد حسني <kha...@aliftype.com>
diff --git a/vcl/source/fontsubset/sft.cxx b/vcl/source/fontsubset/sft.cxx
index 2079cefbb1a6..b51f2d3422ee 100644
--- a/vcl/source/fontsubset/sft.cxx
+++ b/vcl/source/fontsubset/sft.cxx
@@ -1460,7 +1460,7 @@ int GetTTGlyphComponents(AbstractTrueTypeFont *ttf,
sal_uInt32 glyphID, std::vec
const sal_uInt8* ptr = glyf + nOffset;
const sal_uInt8* nptr = glyf + nNextOffset;
- if (nptr <= ptr)
+ if (nptr < ptr)
return 0;
if (std::find(glyphlist.begin(), glyphlist.end(), glyphID) !=
glyphlist.end())
@@ -1471,6 +1471,10 @@ int GetTTGlyphComponents(AbstractTrueTypeFont *ttf,
sal_uInt32 glyphID, std::vec
glyphlist.push_back( glyphID );
+ // Empty glyph.
+ if (nptr == ptr)
+ return n;
+
sal_uInt32 nRemainingData = glyflength - nOffset;
if (nRemainingData >= 10 && GetInt16(ptr, 0) == -1) {
