[subset] COLRv1: add ClipList/ClipRecord/ClipBox struct definition
diff --git a/src/hb-ot-color-colr-table.hh b/src/hb-ot-color-colr-table.hh
index bb71938..66bceab 100644
--- a/src/hb-ot-color-colr-table.hh
+++ b/src/hb-ot-color-colr-table.hh
@@ -872,6 +872,79 @@
DEFINE_SIZE_STATIC (8);
};
+struct ClipBoxTemplate
+{
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this));
+ }
+
+ public:
+ HBUINT8 format; /* format = 1(noVar) or 2(Var)*/
+ FWORD xMin;
+ FWORD yMin;
+ FWORD xMax;
+ FWORD yMax;
+ public:
+ DEFINE_SIZE_STATIC (1 + 4 * FWORD::static_size);
+};
+
+struct ClipBoxFormat1 : ClipBoxTemplate {};
+struct ClipBoxFormat2 : Variable<ClipBoxTemplate> {};
+
+struct ClipBox
+{
+ template <typename context_t, typename ...Ts>
+ typename context_t::return_t dispatch (context_t *c, Ts&&... ds) const
+ {
+ TRACE_DISPATCH (this, u.format);
+ if (unlikely (!c->may_dispatch (this, &u.format))) return_trace (c->no_dispatch_return_value ());
+ switch (u.format) {
+ case 1: return_trace (c->dispatch (u.format1, hb_forward<Ts> (ds)...));
+ case 2: return_trace (c->dispatch (u.format2, hb_forward<Ts> (ds)...));
+ default:return_trace (c->default_return_value ());
+ }
+ }
+
+ protected:
+ union {
+ HBUINT16 format; /* Format identifier */
+ ClipBoxFormat1 format1;
+ ClipBoxFormat2 format2;
+ } u;
+};
+
+struct ClipRecord
+{
+ bool sanitize (hb_sanitize_context_t *c, const void *base) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) && clipBox.sanitize (c, base));
+ }
+
+ public:
+ HBUINT16 startGlyphID; // first gid clip applies to
+ HBUINT16 endGlyphID; // last gid clip applies to, inclusive
+ Offset24To<ClipBox> clipBox; // Box or VarBox
+ public:
+ DEFINE_SIZE_STATIC (7);
+};
+
+struct ClipList
+{
+ bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) && clips.sanitize (c, this));
+ }
+
+ HBUINT8 format; // Set to 1.
+ Array32Of<ClipRecord> clips; // Clip records, sorted by startGlyphID
+ public:
+ DEFINE_SIZE_ARRAY_SIZED (5, clips);
+};
+
struct Paint
{
template <typename context_t, typename ...Ts>
@@ -1244,6 +1317,8 @@
(COLRV1_ENABLE_SUBSETTING && version == 1 &&
baseGlyphList.sanitize (c, this) &&
layerList.sanitize (c, this) &&
+ clipList.sanitize (c, this) &&
+ varIdxMap.sanitize (c, this) &&
varStore.sanitize (c, this))));
}
@@ -1397,6 +1472,7 @@
// Version-1 additions
Offset32To<BaseGlyphList> baseGlyphList;
Offset32To<LayerList> layerList;
+ Offset32To<ClipList> clipList; // Offset to ClipList table (may be NULL)
Offset32To<DeltasetIndexMap> varIdxMap; // Offset to DeltasetIndexMap table (may be NULL)
Offset32To<VariationStore> varStore;
public:
