harfbuzz/src/hb-ot-layout-private.hh

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/*
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* Copyright © 2007,2008,2009 Red Hat, Inc.
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*
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* This is part of HarfBuzz, a text shaping library.
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*
* 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.
*
* Red Hat Author(s): Behdad Esfahbod
*/
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#ifndef HB_OT_LAYOUT_PRIVATE_HH
#define HB_OT_LAYOUT_PRIVATE_HH
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#include "hb-private.hh"
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#include "hb-ot-layout.h"
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#include "hb-font-private.hh"
#include "hb-buffer-private.hh"
#include "hb-ot-shape-complex-private.hh"
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/*
* GDEF
*/
/* XXX cleanup */
typedef enum {
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HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED = 0x0001,
HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH = 0x0002,
HB_OT_LAYOUT_GLYPH_CLASS_LIGATURE = 0x0004,
HB_OT_LAYOUT_GLYPH_CLASS_MARK = 0x0008,
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HB_OT_LAYOUT_GLYPH_CLASS_COMPONENT = 0x0010
} hb_ot_layout_glyph_class_t;
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HB_INTERNAL hb_bool_t
_hb_ot_layout_check_glyph_property (hb_face_t *face,
hb_glyph_info_t *ginfo,
unsigned int lookup_props,
unsigned int *property_out);
HB_INTERNAL hb_bool_t
_hb_ot_layout_skip_mark (hb_face_t *face,
hb_glyph_info_t *ginfo,
unsigned int lookup_props,
unsigned int *property_out);
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/*
* hb_ot_layout_t
*/
struct hb_ot_layout_t
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{
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hb_blob_t *gdef_blob;
hb_blob_t *gsub_blob;
hb_blob_t *gpos_blob;
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const struct GDEF *gdef;
const struct GSUB *gsub;
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const struct GPOS *gpos;
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};
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HB_INTERNAL hb_ot_layout_t *
_hb_ot_layout_create (hb_face_t *face);
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HB_INTERNAL void
_hb_ot_layout_destroy (hb_ot_layout_t *layout);
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#endif /* HB_OT_LAYOUT_PRIVATE_HH */