Index: third_party/harfbuzz-ng/src/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 */ |