dwrite: Do not segfault when there are no typographic features to return.

Signed-off-by: Giovanni Mascellani <gmascellani@codeweavers.com>
Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
(cherry picked from commit 65f5033702)
Signed-off-by: Michael Stefaniuc <mstefani@winehq.org>
This commit is contained in:
Giovanni Mascellani 2021-03-03 15:25:28 +01:00 committed by Michael Stefaniuc
parent 087637e861
commit 4b774ec357
1 changed files with 6 additions and 0 deletions

View File

@ -336,6 +336,12 @@ HRESULT shape_get_typographic_features(struct scriptshaping_context *context, co
shape_get_script_lang_index(context, scripts, MS_GPOS_TAG, &script_index, &language_index);
opentype_get_typographic_features(&context->cache->gpos, script_index, language_index, &t);
if (t.count == 0)
{
*actual_tagcount = 0;
return S_OK;
}
/* Sort and remove duplicates. */
qsort(t.tags, t.count, sizeof(*t.tags), tag_array_sorting_compare);