Add hb-ot-hmtx-table.hh
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+/*
+ * Copyright © 2011 Google, Inc.
+ *
+ * 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.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_OT_HMTX_TABLE_HH
+#define HB_OT_HMTX_TABLE_HH
+
+#include "hb-open-type-private.hh"
+
+
+
+/*
+ * hmtx -- The Horizontal Metrics Table
+ */
+
+#define HB_OT_TAG_hmtx HB_TAG('h','m','t','x')
+
+
+struct LongHorMetric
+{
+ USHORT advanceWidth;
+ SHORT lsb;
+ public:
+ DEFINE_SIZE_STATIC (4);
+};
+
+struct hmtx
+{
+ static const hb_tag_t Tag = HB_OT_TAG_hmtx;
+
+ inline bool sanitize (hb_sanitize_context_t *c) {
+ TRACE_SANITIZE ();
+ /* We don't check for anything specific here. The users of the
+ * struct do all the hard work... */
+ return true;
+ }
+
+ private:
+ LongHorMetric longHorMetric[VAR]; /* Paired advance width and left side
+ * bearing values for each glyph. The
+ * value numOfHMetrics comes from
+ * the 'hhea' table. If the font is
+ * monospaced, only one entry need
+ * be in the array, but that entry is
+ * required. The last entry applies to
+ * all subsequent glyphs. */
+ SHORT leftSideBearingX[VAR]; /* Here the advanceWidth is assumed
+ * to be the same as the advanceWidth
+ * for the last entry above. The
+ * number of entries in this array is
+ * derived from numGlyphs (from 'maxp'
+ * table) minus numberOfHMetrics. This
+ * generally is used with a run of
+ * monospaced glyphs (e.g., Kanji
+ * fonts or Courier fonts). Only one
+ * run is allowed and it must be at
+ * the end. This allows a monospaced
+ * font to vary the left side bearing
+ * values for each glyph. */
+ public:
+ DEFINE_SIZE_ARRAY2 (0, longHorMetric, leftSideBearingX);
+};
+
+#endif /* HB_OT_HMTX_TABLE_HH */
