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[API] Add hb_ot_layout_substitute_start/finish()

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This commit is contained in:
Behdad Esfahbod 2011-05-11 22:33:13 -04:00
parent c84d15f52e
commit 46d6a21cc8
2 changed files with 21 additions and 0 deletions
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13
src/hb-ot-layout.cc
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@ -440,6 +440,14 @@ hb_ot_layout_has_substitution (hb_face_t *face)
return &_get_gsub (face) != &Null(GSUB);
}
void
hb_ot_layout_substitute_start (hb_buffer_t *buffer)
{
unsigned int count = buffer->len;
for (unsigned int i = 0; i < count; i++)
buffer->info[i].var1.u32 = buffer->info[i].var2.u32 = 0;
}
hb_bool_t
hb_ot_layout_substitute_lookup (hb_face_t *face,
hb_buffer_t *buffer,
@ -449,6 +457,11 @@ hb_ot_layout_substitute_lookup (hb_face_t *face,
return _get_gsub (face).substitute_lookup (face, buffer, lookup_index, mask);
}
void
hb_ot_layout_substitute_finish (hb_buffer_t *buffer)
{
}
/*
* GPOS

8
src/hb-ot-layout.h
View File

@ -165,12 +165,20 @@ hb_ot_layout_feature_get_lookup_indexes (hb_face_t *face,
hb_bool_t
hb_ot_layout_has_substitution (hb_face_t *face);
/* Should be called before all the substitute_lookup's are done. */
void
hb_ot_layout_substitute_start (hb_buffer_t *buffer);
hb_bool_t
hb_ot_layout_substitute_lookup (hb_face_t *face,
hb_buffer_t *buffer,
unsigned int lookup_index,
hb_mask_t mask);
/* Should be called after all the substitute_lookup's are done */
void
hb_ot_layout_substitute_finish (hb_buffer_t *buffer);
/*
* GPOS
*/