chromium/third_party/harfbuzz-ng/src/src/hb-ot-hmtx-table.hh

/*
 * Copyright © 2011,2012  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, Roderick Sheeter
 */

#ifndef HB_OT_HMTX_TABLE_HH
#define HB_OT_HMTX_TABLE_HH

#include "hb-open-type.hh"
#include "hb-ot-maxp-table.hh"
#include "hb-ot-hhea-table.hh"
#include "hb-ot-var-hvar-table.hh"
#include "hb-ot-var-mvar-table.hh"
#include "hb-ot-metrics.hh"

/*
 * hmtx -- Horizontal Metrics
 * https://docs.microsoft.com/en-us/typography/opentype/spec/hmtx
 * vmtx -- Vertical Metrics
 * https://docs.microsoft.com/en-us/typography/opentype/spec/vmtx
 */
#define HB_OT_TAG_hmtx …
#define HB_OT_TAG_vmtx …


HB_INTERNAL bool
_glyf_get_leading_bearing_with_var_unscaled (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical, int *lsb);

HB_INTERNAL unsigned
_glyf_get_advance_with_var_unscaled (hb_font_t *font, hb_codepoint_t glyph, bool is_vertical);

HB_INTERNAL bool
_glyf_get_leading_bearing_without_var_unscaled (hb_face_t *face, hb_codepoint_t gid, bool is_vertical, int *lsb);


namespace OT {


struct LongMetric
{ … };


template <typename T/*Data table type*/, typename H/*Header table type*/, typename V/*Var table type*/>
struct hmtxvmtx
{ … };

struct hmtx : hmtxvmtx<hmtx, hhea, HVAR> { … };
struct vmtx : hmtxvmtx<vmtx, vhea, VVAR> { … };

struct hmtx_accelerator_t : hmtx::accelerator_t { … };
struct vmtx_accelerator_t : vmtx::accelerator_t { … };

} /* namespace OT */


#endif /* HB_OT_HMTX_TABLE_HH */