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[arabic] Disable fallback shaping if HB_NO_OT_SHAPE_COMPLEX_ARABIC_FALLBACK defined 

Part of https://github.com/harfbuzz/harfbuzz/issues/1652
This commit is contained in:
Behdad Esfahbod 2019-04-10 15:53:48 -04:00
parent 4d31662b5d
commit edfc6be4a0
2 changed files with 4 additions and 1 deletions
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1
src/hb-ot-shape-complex-arabic-fallback.hh
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@ -91,7 +91,6 @@ arabic_fallback_synthesize_lookup_single (const hb_ot_shape_plan_t *plan HB_UNUS
hb_sorted_array (glyphs, num_glyphs), hb_sorted_array (glyphs, num_glyphs),
hb_array (substitutes, num_glyphs)); hb_array (substitutes, num_glyphs));
c.end_serialize (); c.end_serialize ();
/* TODO sanitize the results? */
return ret ? c.copy<OT::SubstLookup> () : nullptr; return ret ? c.copy<OT::SubstLookup> () : nullptr;
} }

4
src/hb-ot-shape-complex-arabic.cc
View File

@ -383,6 +383,10 @@ arabic_fallback_shape (const hb_ot_shape_plan_t *plan,
hb_font_t *font, hb_font_t *font,
hb_buffer_t *buffer) hb_buffer_t *buffer)
{ {
#if defined(HB_NO_OT_SHAPE_COMPLEX_ARABIC_FALLBACK)
return;
#endif
const arabic_shape_plan_t *arabic_plan = (const arabic_shape_plan_t *) plan->data; const arabic_shape_plan_t *arabic_plan = (const arabic_shape_plan_t *) plan->data;
if (!arabic_plan->do_fallback) if (!arabic_plan->do_fallback)