[aat] Implement gcid table parsing (#944)
diff --git a/src/Makefile.sources b/src/Makefile.sources
index 4917cf1..8a7e820 100644
--- a/src/Makefile.sources
+++ b/src/Makefile.sources
@@ -87,6 +87,7 @@
hb-aat-layout-morx-table.hh \
hb-aat-layout-trak-table.hh \
hb-aat-fmtx-table.hh \
+ hb-aat-gcid-table.hh \
hb-aat-ltag-table.hh \
hb-aat-layout-private.hh \
hb-ot-font.cc \
diff --git a/src/hb-aat-gcid-table.hh b/src/hb-aat-gcid-table.hh
new file mode 100644
index 0000000..57fbbad
--- /dev/null
+++ b/src/hb-aat-gcid-table.hh
@@ -0,0 +1,73 @@
+/*
+ * Copyright © 2018 Ebrahim Byagowi
+ *
+ * This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ */
+
+#ifndef HB_AAT_GCID_TABLE_HH
+#define HB_AAT_GCID_TABLE_HH
+
+#include "hb-aat-layout-common-private.hh"
+
+#define HB_AAT_TAG_gcid HB_TAG('g','c','i','d')
+
+
+namespace AAT {
+
+/*
+ * gcid -- Glyphs CIDs
+ * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6gcid.html
+ */
+
+struct gcid
+{
+ static const hb_tag_t tableTag = HB_AAT_TAG_gcid;
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (c->check_struct (this) && CIDs.sanitize (c));
+ }
+
+ protected:
+ HBUINT16 version; /* Version number (set to 0) */
+ HBUINT16 format; /* Data format (set to 0) */
+ HBUINT32 size; /* Size of the table, including header */
+ HBUINT16 registry; /* The registry ID */
+ uint8_t registryName[64];
+ /* The registry name in ASCII */
+ HBUINT16 order; /* The order ID */
+ uint8_t orderName[64]; /* The order name in ASCII */
+ HBUINT16 supplementVersion;
+ /* The supplement version */
+ ArrayOf<HBUINT16>
+ CIDs; /* The CIDs for the glyphs in the font,
+ * starting with glyph 0. If a glyph does not correspond
+ * to a CID in the identified collection, 0xFFFF is used.
+ * This should not exceed the number of glyphs in the font. */
+ public:
+ DEFINE_SIZE_ARRAY (144, CIDs);
+};
+
+} /* namespace AAT */
+
+
+#endif /* HB_AAT_GCID_TABLE_HH */
diff --git a/src/hb-aat-layout.cc b/src/hb-aat-layout.cc
index 88625ac..9c30275 100644
--- a/src/hb-aat-layout.cc
+++ b/src/hb-aat-layout.cc
@@ -36,6 +36,7 @@
#include "hb-aat-layout-morx-table.hh"
#include "hb-aat-layout-trak-table.hh"
#include "hb-aat-fmtx-table.hh" // Just so we compile it; unused otherwise.
+#include "hb-aat-gcid-table.hh" // Just so we compile it; unused otherwise.
#include "hb-aat-ltag-table.hh" // Just so we compile it; unused otherwise.
/*
