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-rw-r--r--thirdparty/harfbuzz/src/hb-subset-plan.hh29
1 files changed, 29 insertions, 0 deletions
diff --git a/thirdparty/harfbuzz/src/hb-subset-plan.hh b/thirdparty/harfbuzz/src/hb-subset-plan.hh
index 2aaf19c61d..8912ae70d5 100644
--- a/thirdparty/harfbuzz/src/hb-subset-plan.hh
+++ b/thirdparty/harfbuzz/src/hb-subset-plan.hh
@@ -55,6 +55,9 @@ struct hb_subset_plan_t
//layout features which will be preserved
hb_set_t *layout_features;
+ // layout scripts which will be preserved.
+ hb_set_t *layout_scripts;
+
//glyph ids requested to retain
hb_set_t *glyphs_requested;
@@ -103,8 +106,34 @@ struct hb_subset_plan_t
//Old -> New layout item variation store delta set index mapping
hb_map_t *layout_variation_idx_map;
+ hb_hashmap_t<hb_tag_t, hb::unique_ptr<hb_blob_t>>* sanitized_table_cache;
+ //normalized axes location map
+ hb_hashmap_t<hb_tag_t, int> *axes_location;
+ //user specified axes location map
+ hb_hashmap_t<hb_tag_t, float> *user_axes_location;
+ bool all_axes_pinned;
+
public:
+ template<typename T>
+ hb_blob_ptr_t<T> source_table()
+ {
+ if (sanitized_table_cache
+ && !sanitized_table_cache->in_error ()
+ && sanitized_table_cache->has (T::tableTag)) {
+ return hb_blob_reference (sanitized_table_cache->get (T::tableTag).get ());
+ }
+
+ hb::unique_ptr<hb_blob_t> table_blob {hb_sanitize_context_t ().reference_table<T> (source)};
+ hb_blob_t* ret = hb_blob_reference (table_blob.get ());
+
+ if (likely (sanitized_table_cache))
+ sanitized_table_cache->set (T::tableTag,
+ std::move (table_blob));
+
+ return ret;
+ }
+
bool in_error () const { return !successful; }
bool check_success(bool success)