[pango/harfbuzz-ng] [GSUB] Add GSUB::substitute_lookup()



commit 75778ef4af51ce974fc9af25063f7bb239563b5a
Author: Behdad Esfahbod <behdad behdad org>
Date:   Fri May 15 20:11:10 2009 -0400

    [GSUB] Add GSUB::substitute_lookup()
---
 pango/opentype/hb-ot-layout-gsub-private.h |    7 +++++++
 pango/opentype/hb-ot-layout.cc             |    5 +----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/pango/opentype/hb-ot-layout-gsub-private.h b/pango/opentype/hb-ot-layout-gsub-private.h
index 2bf1e9f..3980c6c 100644
--- a/pango/opentype/hb-ot-layout-gsub-private.h
+++ b/pango/opentype/hb-ot-layout-gsub-private.h
@@ -692,6 +692,7 @@ struct ContextSubstFormat1 {
 };
 ASSERT_SIZE (ContextSubstFormat1, 6);
 
+
 struct SubClassRule {
   /* TODO */
 
@@ -1177,6 +1178,12 @@ struct GSUB : GSUBGPOS {
     return *(SubstLookup*)&(((GSUBGPOS *)this)->get_lookup (i));
   }
 
+  inline bool substitute_lookup (hb_ot_layout_t *layout,
+				 hb_buffer_t    *buffer,
+			         unsigned int    lookup_index,
+				 hb_ot_layout_feature_mask_t  mask) const {
+    return get_lookup (lookup_index).substitute_string (layout, buffer, mask);
+  }
 
 };
 DEFINE_NULL_ALIAS (GSUB, GSUBGPOS);
diff --git a/pango/opentype/hb-ot-layout.cc b/pango/opentype/hb-ot-layout.cc
index 0cbc1bf..1d696c7 100644
--- a/pango/opentype/hb-ot-layout.cc
+++ b/pango/opentype/hb-ot-layout.cc
@@ -529,10 +529,7 @@ hb_ot_layout_substitute_lookup (hb_ot_layout_t              *layout,
 			        unsigned int                 lookup_index,
 				hb_ot_layout_feature_mask_t  mask)
 {
-  const GSUB &gsub = *(layout->gsub);
-  const SubstLookup &l = gsub.get_lookup (lookup_index);
-
-  return l.substitute_string (layout, buffer, mask);
+  return layout->gsub->substitute_lookup (layout, buffer, lookup_index, mask);
 }
 
 



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