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

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/*
* Copyright (C) 2007,2008 Red Hat, Inc.
*
* This is part of HarfBuzz, an OpenType Layout engine 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.
*
* Red Hat Author(s): Behdad Esfahbod
*/
#ifndef HB_OT_LAYOUT_PRIVATE_H
#define HB_OT_LAYOUT_PRIVATE_H
#include "hb-private.h"
#include "hb-ot-layout.h"
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/* XXX */
#include "harfbuzz-buffer.h"
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typedef unsigned int hb_ot_layout_class_t;
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struct _hb_ot_layout_t {
const struct GDEF *gdef;
const struct GSUB *gsub;
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const struct GPOS *gpos;
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struct {
unsigned char *klasses;
unsigned int len;
} new_gdef;
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/* TODO full-matrix transformation? */
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struct gpos_info_t {
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unsigned int x_ppem, y_ppem;
hb_16dot16_t x_scale, y_scale;
hb_bool_t dvi;
hb_bool_t r2l;
unsigned int last; /* the last valid glyph--used with cursive positioning */
hb_position_t anchor_x; /* the coordinates of the anchor point */
hb_position_t anchor_y; /* of the last valid glyph */
} gpos_info;
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};
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/* XXX #define HB_OT_LAYOUT_INTERNAL static */
#define HB_OT_LAYOUT_INTERNAL
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HB_BEGIN_DECLS();
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/*
* GDEF
*/
HB_OT_LAYOUT_INTERNAL hb_bool_t
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_hb_ot_layout_has_new_glyph_classes (hb_ot_layout_t *layout);
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HB_OT_LAYOUT_INTERNAL unsigned int
_hb_ot_layout_get_glyph_property (hb_ot_layout_t *layout,
hb_codepoint_t glyph);
HB_OT_LAYOUT_INTERNAL void
_hb_ot_layout_set_glyph_property (hb_ot_layout_t *layout,
hb_codepoint_t glyph,
unsigned int property);
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HB_OT_LAYOUT_INTERNAL hb_bool_t
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_hb_ot_layout_check_glyph_property (hb_ot_layout_t *layout,
HB_GlyphItem gitem,
unsigned int lookup_flags,
unsigned int *property);
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/* XXX */
HB_Error
hb_buffer_ensure( HB_Buffer buffer,
HB_UInt size );
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HB_END_DECLS();
#endif /* HB_OT_LAYOUT_PRIVATE_H */