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src/java.desktop/share/native/libfontmanager/harfbuzz/hb-open-file-private.hh
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@@ -284,10 +284,201 @@
} header;
TTCHeaderVersion1 version1;
} u;
};
+/*
+ * Mac Resource Fork
+ */
+
+struct ResourceRefItem
+{
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ // actual data sanitization is done on ResourceForkHeader sanitizer
+ return_trace (likely (c->check_struct (this)));
+ }
+
+ HBINT16 id; /* Resource ID, is really should be signed? */
+ HBINT16 nameOffset; /* Offset from beginning of resource name list
+ * to resource name, minus means there is no */
+ HBUINT8 attr; /* Resource attributes */
+ HBUINT24 dataOffset; /* Offset from beginning of resource data to
+ * data for this resource */
+ HBUINT32 reserved; /* Reserved for handle to resource */
+ public:
+ DEFINE_SIZE_STATIC (12);
+};
+
+struct ResourceTypeItem
+{
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ // RefList sanitization is done on ResourceMap sanitizer
+ return_trace (likely (c->check_struct (this)));
+ }
+
+ inline unsigned int get_resource_count () const
+ {
+ return numRes + 1;
+ }
+
+ inline bool is_sfnt () const
+ {
+ return type == HB_TAG ('s','f','n','t');
+ }
+
+ inline const ResourceRefItem& get_ref_item (const void *base,
+ unsigned int i) const
+ {
+ return (base+refList)[i];
+ }
+
+ protected:
+ Tag type; /* Resource type */
+ HBUINT16 numRes; /* Number of resource this type in map minus 1 */
+ OffsetTo<UnsizedArrayOf<ResourceRefItem> >
+ refList; /* Offset from beginning of resource type list
+ * to reference list for this type */
+ public:
+ DEFINE_SIZE_STATIC (8);
+};
+
+struct ResourceMap
+{
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ if (unlikely (!c->check_struct (this)))
+ return_trace (false);
+ for (unsigned int i = 0; i < get_types_count (); ++i)
+ {
+ const ResourceTypeItem& type = get_type (i);
+ if (unlikely (!type.sanitize (c)))
+ return_trace (false);
+ for (unsigned int j = 0; j < type.get_resource_count (); ++j)
+ if (unlikely (!get_ref_item (type, j).sanitize (c)))
+ return_trace (false);
+ }
+ return_trace (true);
+ }
+
+ inline const ResourceTypeItem& get_type (unsigned int i) const
+ {
+ // Why offset from the second byte of the object? I'm not sure
+ return ((&reserved[2])+typeList)[i];
+ }
+
+ inline unsigned int get_types_count () const
+ {
+ return nTypes + 1;
+ }
+
+ inline const ResourceRefItem &get_ref_item (const ResourceTypeItem &type,
+ unsigned int i) const
+ {
+ return type.get_ref_item (&(this+typeList), i);
+ }
+
+ inline const PString& get_name (const ResourceRefItem &item,
+ unsigned int i) const
+ {
+ if (item.nameOffset == -1)
+ return Null (PString);
+
+ return StructAtOffset<PString> (this, nameList + item.nameOffset);
+ }
+
+ protected:
+ HBUINT8 reserved[16]; /* Reserved for copy of resource header */
+ LOffsetTo<ResourceMap>
+ reserved1; /* Reserved for handle to next resource map */
+ HBUINT16 reserved2; /* Reserved for file reference number */
+ HBUINT16 attr; /* Resource fork attribute */
+ OffsetTo<UnsizedArrayOf<ResourceTypeItem> >
+ typeList; /* Offset from beginning of map to
+ * resource type list */
+ HBUINT16 nameList; /* Offset from beginning of map to
+ * resource name list */
+ HBUINT16 nTypes; /* Number of types in the map minus 1 */
+ public:
+ DEFINE_SIZE_STATIC (30);
+};
+
+struct ResourceForkHeader
+{
+ inline unsigned int get_face_count () const
+ {
+ const ResourceMap &resource_map = this+map;
+ for (unsigned int i = 0; i < resource_map.get_types_count (); ++i)
+ {
+ const ResourceTypeItem& type = resource_map.get_type (i);
+ if (type.is_sfnt ())
+ return type.get_resource_count ();
+ }
+ return 0;
+ }
+
+ inline const LArrayOf<HBUINT8>& get_data (const ResourceTypeItem& type,
+ unsigned int idx) const
+ {
+ const ResourceMap &resource_map = this+map;
+ unsigned int offset = dataOffset;
+ offset += resource_map.get_ref_item (type, idx).dataOffset;
+ return StructAtOffset<LArrayOf<HBUINT8> > (this, offset);
+ }
+
+ inline const OpenTypeFontFace& get_face (unsigned int idx) const
+ {
+ const ResourceMap &resource_map = this+map;
+ for (unsigned int i = 0; i < resource_map.get_types_count (); ++i)
+ {
+ const ResourceTypeItem& type = resource_map.get_type (i);
+ if (type.is_sfnt () && idx < type.get_resource_count ())
+ return (OpenTypeFontFace&) get_data (type, idx).arrayZ;
+ }
+ return Null (OpenTypeFontFace);
+ }
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ if (unlikely (!c->check_struct (this)))
+ return_trace (false);
+
+ const ResourceMap &resource_map = this+map;
+ if (unlikely (!resource_map.sanitize (c)))
+ return_trace (false);
+
+ for (unsigned int i = 0; i < resource_map.get_types_count (); ++i)
+ {
+ const ResourceTypeItem& type = resource_map.get_type (i);
+ for (unsigned int j = 0; j < type.get_resource_count (); ++j)
+ {
+ const LArrayOf<HBUINT8>& data = get_data (type, j);
+ if (unlikely (!(data.sanitize (c) &&
+ ((OpenTypeFontFace&) data.arrayZ).sanitize (c))))
+ return_trace (false);
+ }
+ }
+
+ return_trace (true);
+ }
+
+ protected:
+ HBUINT32 dataOffset; /* Offset from beginning of resource fork
+ * to resource data */
+ LOffsetTo<ResourceMap>
+ map; /* Offset from beginning of resource fork
+ * to resource map */
+ HBUINT32 dataLen; /* Length of resource data */
+ HBUINT32 mapLen; /* Length of resource map */
+ public:
+ DEFINE_SIZE_STATIC (16);
+};
/*
* OpenType Font File
*/
@@ -297,10 +488,11 @@
enum {
CFFTag = HB_TAG ('O','T','T','O'), /* OpenType with Postscript outlines */
TrueTypeTag = HB_TAG ( 0 , 1 , 0 , 0 ), /* OpenType with TrueType outlines */
TTCTag = HB_TAG ('t','t','c','f'), /* TrueType Collection */
+ DFontTag = HB_TAG ( 0 , 0 , 1 , 0 ), /* DFont Mac Resource Fork */
TrueTag = HB_TAG ('t','r','u','e'), /* Obsolete Apple TrueType */
Typ1Tag = HB_TAG ('t','y','p','1') /* Obsolete Apple Type1 font in SFNT container */
};
inline hb_tag_t get_tag (void) const { return u.tag; }
@@ -311,10 +503,11 @@
case CFFTag: /* All the non-collection tags */
case TrueTag:
case Typ1Tag:
case TrueTypeTag: return 1;
case TTCTag: return u.ttcHeader.get_face_count ();
+// case DFontTag: return u.rfHeader.get_face_count ();
default: return 0;
}
}
inline const OpenTypeFontFace& get_face (unsigned int i) const
{
@@ -325,10 +518,11 @@
case CFFTag: /* All the non-collection tags */
case TrueTag:
case Typ1Tag:
case TrueTypeTag: return u.fontFace;
case TTCTag: return u.ttcHeader.get_face (i);
+// case DFontTag: return u.rfHeader.get_face (i);
default: return Null(OpenTypeFontFace);
}
}
inline bool serialize_single (hb_serialize_context_t *c,
@@ -351,19 +545,21 @@
case CFFTag: /* All the non-collection tags */
case TrueTag:
case Typ1Tag:
case TrueTypeTag: return_trace (u.fontFace.sanitize (c));
case TTCTag: return_trace (u.ttcHeader.sanitize (c));
+// case DFontTag: return_trace (u.rfHeader.sanitize (c));
default: return_trace (true);
}
}
protected:
union {
Tag tag; /* 4-byte identifier. */
OpenTypeFontFace fontFace;
TTCHeader ttcHeader;
+ ResourceForkHeader rfHeader;
} u;
public:
DEFINE_SIZE_UNION (4, tag);
};
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