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BASE: start api

This commit is contained in:
Elie Roux 2017-03-05 14:53:39 +01:00
parent f72726c52b
commit e65aaaa00a
4 changed files with 118 additions and 13 deletions
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2
src/Makefile.sources
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@ -68,6 +68,7 @@ HB_NODIST_headers = \
HB_FALLBACK_sources = hb-fallback-shape.cc
HB_OT_sources = \
hb-ot-base.cc \
hb-ot-font.cc \
hb-ot-layout.cc \
hb-ot-layout-base-table.hh \
@ -121,6 +122,7 @@ HB_OT_headers = \
hb-ot-font.h \
hb-ot-layout.h \
hb-ot-math.h \
hb-ot-base.h \
hb-ot-shape.h \
hb-ot-tag.h \
hb-ot-var.h \

58
src/hb-ot-base.cc Normal file
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@ -0,0 +1,58 @@
/*
* Copyright © 2017 Elie Roux<elie.roux@telecom-bretagne.eu>
*
* 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.
*
*/
#include "hb-open-type-private.hh"
#include "hb-ot-layout-private.hh"
#include "hb-ot-layout-base-table.hh"
static inline const OT::BASE&
_get_base (hb_face_t *face)
{
if (unlikely (!hb_ot_shaper_face_data_ensure (face))) return OT::Null(OT::BASE);
hb_ot_layout_t * layout = hb_ot_layout_from_face (face);
return *(layout->base.get ());
}
/*
* OT::BASE
*/
/**
* hb_ot_base_has_data:
* @face: #hb_face_t to test
*
* This function allows to verify the presence of an OpenType BASE table on the
* face.
*
* Return value: true if face has a BASE table, false otherwise
*
* Since: XXX
**/
hb_bool_t
hb_ot_base_has_data (hb_face_t *face)
{
return &_get_base (face) != &OT::Null(OT::BASE);
}

56
src/hb-ot-base.h Normal file
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@ -0,0 +1,56 @@
/*
* Copyright © 2017 Elie Roux<elie.roux@telecom-bretagne.eu>
*
* 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.
*
*/
#ifndef HB_OT_H_IN
#error "Include <hb-ot.h> instead."
#endif
#ifndef HB_OT_BASE_H
#define HB_OT_BASE_H
#include "hb.h"
HB_BEGIN_DECLS
#define HB_OT_TAG_BASE HB_TAG('B','A','S','E')
// https://www.microsoft.com/typography/otspec/baselinetags.htm
#define HB_OT_TAG_BASE_HANG HB_TAG('h','a','n','g')
#define HB_OT_TAG_BASE_ICFB HB_TAG('i','c','f','b')
#define HB_OT_TAG_BASE_ICFT HB_TAG('i','c','f','t')
#define HB_OT_TAG_BASE_IDEO HB_TAG('i','d','e','o')
#define HB_OT_TAG_BASE_IDTB HB_TAG('i','d','t','b')
#define HB_OT_TAG_BASE_MATH HB_TAG('m','a','t','h')
#define HB_OT_TAG_BASE_ROMN HB_TAG('r','o','m','n')
/* Methods */
HB_EXTERN hb_bool_t
hb_ot_base_has_data (hb_face_t *face);
HB_END_DECLS
#endif /* HB_OT_BASE_H */

15
src/hb-ot-layout-base-table.hh
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@ -28,18 +28,7 @@
#include "hb-open-type-private.hh"
#include "hb-ot-layout-common-private.hh"
#define HB_OT_TAG_BASE HB_TAG('B','A','S','E')
// https://www.microsoft.com/typography/otspec/baselinetags.htm
#define HB_OT_TAG_BASE_HANG HB_TAG('h','a','n','g')
#define HB_OT_TAG_BASE_ICFB HB_TAG('i','c','f','b')
#define HB_OT_TAG_BASE_ICFT HB_TAG('i','c','f','t')
#define HB_OT_TAG_BASE_IDEO HB_TAG('i','d','e','o')
#define HB_OT_TAG_BASE_IDTB HB_TAG('i','d','t','b')
#define HB_OT_TAG_BASE_MATH HB_TAG('m','a','t','h')
#define HB_OT_TAG_BASE_ROMN HB_TAG('r','o','m','n')
#include "hb-ot-base.h"
namespace OT {
@ -743,7 +732,7 @@ struct BASE
inline SHORT get_vert_min_value (unsigned int baseScriptIndex, unsigned int baseLangSysIndex, unsigned int featureTableTagIndex) const
{ return u.format1_0.get_vert_min_value(baseScriptIndex, baseLangSysIndex, featureTableTagIndex); }
inline bool sanitize (hb_sanitize_context_t *c, const void *base) const
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
if (!u.version.sanitize (c)) return_trace (false);