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[coretext] Handle allocation failures

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Khaled Hosny 2025-02-12 13:09:02 +02:00 • committed by خالد حسني (Khaled Hosny)
parent 8c561733b6
commit 1bc87dfed2
1 changed files with 9 additions and 2 deletions
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11
src/hb-coretext-shape.cc
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@ -523,13 +523,19 @@ hb_coretext_font_create (CTFontRef ct_font)
CFDictionaryRef variations = CTFontCopyVariation (ct_font);
if (variations)
{
hb_vector_t<hb_variation_t> vars;
CFIndex count = CFDictionaryGetCount (variations);
// Fetch them one by one and collect in a vector of our own.
CFTypeRef *keys = (CFTypeRef*) hb_malloc (sizeof (CFTypeRef) * count);
CFTypeRef *values = (CFTypeRef*) hb_malloc (sizeof (CFTypeRef) * count);
CFDictionaryGetKeysAndValues (variations, keys, values);
if (unlikely (!keys || !values))
goto done;
hb_vector_t<hb_variation_t> vars;
if (unlikely (!vars.alloc (count)))
goto done;
CFDictionaryGetKeysAndValues (variations, keys, values);
for (CFIndex i = 0; i < count; i++)
{
int tag;
@ -542,6 +548,7 @@ hb_coretext_font_create (CTFontRef ct_font)
}
hb_font_set_variations (font, vars.arrayZ, vars.length);
done:
hb_free (keys);
hb_free (values);
CFRelease (variations);