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[glyf] Move add_gid_and_children to subset-plan where it belongs

This commit is contained in:
Behdad Esfahbod 2022-06-25 16:54:46 -06:00
parent ba1c9eda38
commit 36373ee15c
2 changed files with 30 additions and 26 deletions
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25
src/OT/glyf/glyf.hh
View File

@ -15,11 +15,6 @@
namespace OT {
#ifndef HB_MAX_COMPOSITE_OPERATIONS
#define HB_MAX_COMPOSITE_OPERATIONS 100000
#endif
/*
* glyf -- TrueType Glyph Data
* https://docs.microsoft.com/en-us/typography/opentype/spec/glyf
@ -453,26 +448,6 @@ struct glyf_accelerator_t
return needs_padding_removal ? glyph.trim_padding () : glyph;
}
unsigned
add_gid_and_children (hb_codepoint_t gid,
hb_set_t *gids_to_retain,
unsigned depth = 0,
unsigned operation_count = 0) const
{
if (unlikely (depth++ > HB_MAX_NESTING_LEVEL)) return operation_count;
if (unlikely (operation_count++ > HB_MAX_COMPOSITE_OPERATIONS)) return operation_count;
/* Check if is already visited */
if (gids_to_retain->has (gid)) return operation_count;
gids_to_retain->add (gid);
for (auto item : glyph_for_gid (gid).get_composite_iterator ())
operation_count =
add_gid_and_children (item.get_glyph_index (), gids_to_retain, depth, operation_count);
return operation_count;
}
struct path_builder_t
{
hb_font_t *font;

31
src/hb-subset-plan.cc
View File

@ -347,6 +347,35 @@ _populate_unicodes_to_retain (const hb_set_t *unicodes,
}
}
#ifndef HB_MAX_COMPOSITE_OPERATIONS
#define HB_MAX_COMPOSITE_OPERATIONS 100000
#endif
static unsigned
_glyf_add_gid_and_children (const OT::glyf_accelerator_t &glyf,
hb_codepoint_t gid,
hb_set_t *gids_to_retain,
unsigned depth = 0,
unsigned operation_count = 0)
{
if (unlikely (depth++ > HB_MAX_NESTING_LEVEL)) return operation_count;
if (unlikely (operation_count++ > HB_MAX_COMPOSITE_OPERATIONS)) return operation_count;
/* Check if is already visited */
if (gids_to_retain->has (gid)) return operation_count;
gids_to_retain->add (gid);
for (auto item : glyf.glyph_for_gid (gid).get_composite_iterator ())
operation_count =
_glyf_add_gid_and_children (glyf,
item.get_glyph_index (),
gids_to_retain,
depth,
operation_count);
return operation_count;
}
static void
_populate_gids_to_retain (hb_subset_plan_t* plan,
bool close_over_gsub,
@ -398,7 +427,7 @@ _populate_gids_to_retain (hb_subset_plan_t* plan,
* composite glyphs. */
if (glyf.has_data ())
for (hb_codepoint_t gid : cur_glyphset)
glyf.add_gid_and_children (gid, plan->_glyphset);
_glyf_add_gid_and_children (glyf, gid, plan->_glyphset);
else
plan->_glyphset->union_ (cur_glyphset);
#ifndef HB_NO_SUBSET_CFF