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harfbuzz
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Separate face source code from font 

Makes documentation / introspection easier.
This commit is contained in:
Behdad Esfahbod 2013-08-26 18:49:07 -04:00
parent d3490761e1
commit 2e3a07abdf
11 changed files with 549 additions and 410 deletions
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1
Android.mk
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@ -32,6 +32,7 @@ LOCAL_SRC_FILES:= \
src/hb-buffer.cc \
src/hb-common.cc \
src/hb-fallback-shape.cc \
src/hb-face.cc \
src/hb-font.cc \
src/hb-ot-tag.cc \
src/hb-set.cc \

1
docs/reference/harfbuzz-docs.xml
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@ -21,6 +21,7 @@
<xi:include href="xml/hb-unicode.xml"/>
<xi:include href="xml/hb-buffer.xml"/>
<xi:include href="xml/hb-blob.xml"/>
<xi:include href="xml/hb-face.xml"/>
<xi:include href="xml/hb-font.xml"/>
<xi:include href="xml/hb-shape.xml"/>

6
docs/reference/harfbuzz-sections.txt
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@ -133,7 +133,7 @@ hb_coretext_font_get_ct_font
</SECTION>
<SECTION>
<FILE>hb-font</FILE>
<FILE>hb-face</FILE>
hb_face_create
hb_face_create_for_tables
hb_face_destroy
@ -152,6 +152,10 @@ hb_face_set_index
hb_face_set_upem
hb_face_set_user_data
hb_face_t
</SECTION>
<SECTION>
<FILE>hb-font</FILE>
hb_font_add_glyph_origin_for_direction
hb_font_create
hb_font_create_sub_font

3
src/Makefile.am
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@ -28,6 +28,8 @@ HBSOURCES = \
hb-cache-private.hh \
hb-common.cc \
hb-fallback-shape.cc \
hb-face-private.hh \
hb-face.cc \
hb-font-private.hh \
hb-font.cc \
hb-mutex-private.hh \
@ -61,6 +63,7 @@ HBHEADERS = \
hb-blob.h \
hb-buffer.h \
hb-common.h \
hb-face.h \
hb-font.h \
hb-set.h \
hb-shape.h \

108
src/hb-face-private.hh Normal file
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@ -0,0 +1,108 @@
/*
* Copyright © 2009 Red Hat, Inc.
* 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.
*
* Red Hat Author(s): Behdad Esfahbod
* Google Author(s): Behdad Esfahbod
*/
#ifndef HB_FACE_PRIVATE_HH
#define HB_FACE_PRIVATE_HH
#include "hb-private.hh"
#include "hb-font.h"
#include "hb-object-private.hh"
#include "hb-shaper-private.hh"
#include "hb-shape-plan-private.hh"
/*
* hb_face_t
*/
struct hb_face_t {
hb_object_header_t header;
ASSERT_POD ();
hb_bool_t immutable;
hb_reference_table_func_t reference_table_func;
void *user_data;
hb_destroy_func_t destroy;
unsigned int index;
mutable unsigned int upem;
mutable unsigned int num_glyphs;
struct hb_shaper_data_t shaper_data;
struct plan_node_t {
hb_shape_plan_t *shape_plan;
plan_node_t *next;
} *shape_plans;
inline hb_blob_t *reference_table (hb_tag_t tag) const
{
hb_blob_t *blob;
if (unlikely (!this || !reference_table_func))
return hb_blob_get_empty ();
blob = reference_table_func (/*XXX*/const_cast<hb_face_t *> (this), tag, user_data);
if (unlikely (!blob))
return hb_blob_get_empty ();
return blob;
}
inline HB_PURE_FUNC unsigned int get_upem (void) const
{
if (unlikely (!upem))
load_upem ();
return upem;
}
inline unsigned int get_num_glyphs (void) const
{
if (unlikely (num_glyphs == (unsigned int) -1))
load_num_glyphs ();
return num_glyphs;
}
private:
HB_INTERNAL void load_upem (void) const;
HB_INTERNAL void load_num_glyphs (void) const;
};
extern HB_INTERNAL const hb_face_t _hb_face_nil;
#define HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS
#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_PROTOTYPE(shaper, face);
#include "hb-shaper-list.hh"
#undef HB_SHAPER_IMPLEMENT
#undef HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS
#endif /* HB_FACE_PRIVATE_HH */

311
src/hb-face.cc Normal file
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@ -0,0 +1,311 @@
/*
* Copyright © 2009 Red Hat, Inc.
* Copyright © 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.
*
* Red Hat Author(s): Behdad Esfahbod
* Google Author(s): Behdad Esfahbod
*/
#include "hb-private.hh"
#include "hb-ot-layout-private.hh"
#include "hb-font-private.hh"
#include "hb-blob.h"
#include "hb-open-file-private.hh"
#include "hb-ot-head-table.hh"
#include "hb-ot-maxp-table.hh"
#include "hb-cache-private.hh"
#include <string.h>
/*
* hb_face_t
*/
const hb_face_t _hb_face_nil = {
HB_OBJECT_HEADER_STATIC,
true, /* immutable */
NULL, /* reference_table_func */
NULL, /* user_data */
NULL, /* destroy */
0, /* index */
1000, /* upem */
0, /* num_glyphs */
{
#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INVALID,
#include "hb-shaper-list.hh"
#undef HB_SHAPER_IMPLEMENT
},
NULL, /* shape_plans */
};
hb_face_t *
hb_face_create_for_tables (hb_reference_table_func_t reference_table_func,
void *user_data,
hb_destroy_func_t destroy)
{
hb_face_t *face;
if (!reference_table_func || !(face = hb_object_create<hb_face_t> ())) {
if (destroy)
destroy (user_data);
return hb_face_get_empty ();
}
face->reference_table_func = reference_table_func;
face->user_data = user_data;
face->destroy = destroy;
face->upem = 0;
face->num_glyphs = (unsigned int) -1;
return face;
}
typedef struct hb_face_for_data_closure_t {
hb_blob_t *blob;
unsigned int index;
} hb_face_for_data_closure_t;
static hb_face_for_data_closure_t *
_hb_face_for_data_closure_create (hb_blob_t *blob, unsigned int index)
{
hb_face_for_data_closure_t *closure;
closure = (hb_face_for_data_closure_t *) malloc (sizeof (hb_face_for_data_closure_t));
if (unlikely (!closure))
return NULL;
closure->blob = blob;
closure->index = index;
return closure;
}
static void
_hb_face_for_data_closure_destroy (hb_face_for_data_closure_t *closure)
{
hb_blob_destroy (closure->blob);
free (closure);
}
static hb_blob_t *
_hb_face_for_data_reference_table (hb_face_t *face HB_UNUSED, hb_tag_t tag, void *user_data)
{
hb_face_for_data_closure_t *data = (hb_face_for_data_closure_t *) user_data;
if (tag == HB_TAG_NONE)
return hb_blob_reference (data->blob);
const OT::OpenTypeFontFile &ot_file = *OT::Sanitizer<OT::OpenTypeFontFile>::lock_instance (data->blob);
const OT::OpenTypeFontFace &ot_face = ot_file.get_face (data->index);
const OT::OpenTypeTable &table = ot_face.get_table_by_tag (tag);
hb_blob_t *blob = hb_blob_create_sub_blob (data->blob, table.offset, table.length);
return blob;
}
hb_face_t *
hb_face_create (hb_blob_t *blob,
unsigned int index)
{
hb_face_t *face;
if (unlikely (!blob || !hb_blob_get_length (blob)))
return hb_face_get_empty ();
hb_face_for_data_closure_t *closure = _hb_face_for_data_closure_create (OT::Sanitizer<OT::OpenTypeFontFile>::sanitize (hb_blob_reference (blob)), index);
if (unlikely (!closure))
return hb_face_get_empty ();
face = hb_face_create_for_tables (_hb_face_for_data_reference_table,
closure,
(hb_destroy_func_t) _hb_face_for_data_closure_destroy);
hb_face_set_index (face, index);
return face;
}
hb_face_t *
hb_face_get_empty (void)
{
return const_cast<hb_face_t *> (&_hb_face_nil);
}
hb_face_t *
hb_face_reference (hb_face_t *face)
{
return hb_object_reference (face);
}
void
hb_face_destroy (hb_face_t *face)
{
if (!hb_object_destroy (face)) return;
for (hb_face_t::plan_node_t *node = face->shape_plans; node; )
{
hb_face_t::plan_node_t *next = node->next;
hb_shape_plan_destroy (node->shape_plan);
free (node);
node = next;
}
#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_DESTROY(shaper, face);
#include "hb-shaper-list.hh"
#undef HB_SHAPER_IMPLEMENT
if (face->destroy)
face->destroy (face->user_data);
free (face);
}
hb_bool_t
hb_face_set_user_data (hb_face_t *face,
hb_user_data_key_t *key,
void * data,
hb_destroy_func_t destroy,
hb_bool_t replace)
{
return hb_object_set_user_data (face, key, data, destroy, replace);
}
void *
hb_face_get_user_data (hb_face_t *face,
hb_user_data_key_t *key)
{
return hb_object_get_user_data (face, key);
}
void
hb_face_make_immutable (hb_face_t *face)
{
if (hb_object_is_inert (face))
return;
face->immutable = true;
}
hb_bool_t
hb_face_is_immutable (hb_face_t *face)
{
return face->immutable;
}
hb_blob_t *
hb_face_reference_table (hb_face_t *face,
hb_tag_t tag)
{
return face->reference_table (tag);
}
hb_blob_t *
hb_face_reference_blob (hb_face_t *face)
{
return face->reference_table (HB_TAG_NONE);
}
void
hb_face_set_index (hb_face_t *face,
unsigned int index)
{
if (hb_object_is_inert (face))
return;
face->index = index;
}
unsigned int
hb_face_get_index (hb_face_t *face)
{
return face->index;
}
void
hb_face_set_upem (hb_face_t *face,
unsigned int upem)
{
if (hb_object_is_inert (face))
return;
face->upem = upem;
}
unsigned int
hb_face_get_upem (hb_face_t *face)
{
return face->get_upem ();
}
void
hb_face_t::load_upem (void) const
{
hb_blob_t *head_blob = OT::Sanitizer<OT::head>::sanitize (reference_table (HB_OT_TAG_head));
const OT::head *head_table = OT::Sanitizer<OT::head>::lock_instance (head_blob);
upem = head_table->get_upem ();
hb_blob_destroy (head_blob);
}
void
hb_face_set_glyph_count (hb_face_t *face,
unsigned int glyph_count)
{
if (hb_object_is_inert (face))
return;
face->num_glyphs = glyph_count;
}
unsigned int
hb_face_get_glyph_count (hb_face_t *face)
{
return face->get_num_glyphs ();
}
void
hb_face_t::load_num_glyphs (void) const
{
hb_blob_t *maxp_blob = OT::Sanitizer<OT::maxp>::sanitize (reference_table (HB_OT_TAG_maxp));
const OT::maxp *maxp_table = OT::Sanitizer<OT::maxp>::lock_instance (maxp_blob);
num_glyphs = maxp_table->get_num_glyphs ();
hb_blob_destroy (maxp_blob);
}

117
src/hb-face.h Normal file
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@ -0,0 +1,117 @@
/*
* Copyright © 2009 Red Hat, 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.
*
* Red Hat Author(s): Behdad Esfahbod
*/
#ifndef HB_H_IN
#error "Include <hb.h> instead."
#endif
#ifndef HB_FACE_H
#define HB_FACE_H
#include "hb-common.h"
#include "hb-blob.h"
HB_BEGIN_DECLS
/*
* hb_face_t
*/
typedef struct hb_face_t hb_face_t;
hb_face_t *
hb_face_create (hb_blob_t *blob,
unsigned int index);
typedef hb_blob_t * (*hb_reference_table_func_t) (hb_face_t *face, hb_tag_t tag, void *user_data);
/* calls destroy() when not needing user_data anymore */
hb_face_t *
hb_face_create_for_tables (hb_reference_table_func_t reference_table_func,
void *user_data,
hb_destroy_func_t destroy);
hb_face_t *
hb_face_get_empty (void);
hb_face_t *
hb_face_reference (hb_face_t *face);
void
hb_face_destroy (hb_face_t *face);
hb_bool_t
hb_face_set_user_data (hb_face_t *face,
hb_user_data_key_t *key,
void * data,
hb_destroy_func_t destroy,
hb_bool_t replace);
void *
hb_face_get_user_data (hb_face_t *face,
hb_user_data_key_t *key);
void
hb_face_make_immutable (hb_face_t *face);
hb_bool_t
hb_face_is_immutable (hb_face_t *face);
hb_blob_t *
hb_face_reference_table (hb_face_t *face,
hb_tag_t tag);
hb_blob_t *
hb_face_reference_blob (hb_face_t *face);
void
hb_face_set_index (hb_face_t *face,
unsigned int index);
unsigned int
hb_face_get_index (hb_face_t *face);
void
hb_face_set_upem (hb_face_t *face,
unsigned int upem);
unsigned int
hb_face_get_upem (hb_face_t *face);
void
hb_face_set_glyph_count (hb_face_t *face,
unsigned int glyph_count);
unsigned int
hb_face_get_glyph_count (hb_face_t *face);
HB_END_DECLS
#endif /* HB_FACE_H */

67
src/hb-font-private.hh
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@ -33,8 +33,8 @@
#include "hb-font.h"
#include "hb-object-private.hh"
#include "hb-face-private.hh"
#include "hb-shaper-private.hh"
#include "hb-shape-plan-private.hh"
@ -84,71 +84,6 @@ struct hb_font_funcs_t {
};
/*
* hb_face_t
*/
struct hb_face_t {
hb_object_header_t header;
ASSERT_POD ();
hb_bool_t immutable;
hb_reference_table_func_t reference_table_func;
void *user_data;
hb_destroy_func_t destroy;
unsigned int index;
mutable unsigned int upem;
mutable unsigned int num_glyphs;
struct hb_shaper_data_t shaper_data;
struct plan_node_t {
hb_shape_plan_t *shape_plan;
plan_node_t *next;
} *shape_plans;
inline hb_blob_t *reference_table (hb_tag_t tag) const
{
hb_blob_t *blob;
if (unlikely (!this || !reference_table_func))
return hb_blob_get_empty ();
blob = reference_table_func (/*XXX*/const_cast<hb_face_t *> (this), tag, user_data);
if (unlikely (!blob))
return hb_blob_get_empty ();
return blob;
}
inline HB_PURE_FUNC unsigned int get_upem (void) const
{
if (unlikely (!upem))
load_upem ();
return upem;
}
inline unsigned int get_num_glyphs (void) const
{
if (unlikely (num_glyphs == (unsigned int) -1))
load_num_glyphs ();
return num_glyphs;
}
private:
HB_INTERNAL void load_upem (void) const;
HB_INTERNAL void load_num_glyphs (void) const;
};
#define HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS
#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_PROTOTYPE(shaper, face);
#include "hb-shaper-list.hh"
#undef HB_SHAPER_IMPLEMENT
#undef HB_SHAPER_DATA_CREATE_FUNC_EXTRA_ARGS
/*
* hb_font_t

269
src/hb-font.cc
View File

@ -41,7 +41,6 @@
#include <string.h>
/*
* hb_font_funcs_t
*/
@ -506,274 +505,6 @@ hb_font_glyph_from_string (hb_font_t *font,
}
/*
* hb_face_t
*/
static const hb_face_t _hb_face_nil = {
HB_OBJECT_HEADER_STATIC,
true, /* immutable */
NULL, /* reference_table_func */
NULL, /* user_data */
NULL, /* destroy */
0, /* index */
1000, /* upem */
0, /* num_glyphs */
{
#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INVALID,
#include "hb-shaper-list.hh"
#undef HB_SHAPER_IMPLEMENT
},
NULL, /* shape_plans */
};
hb_face_t *
hb_face_create_for_tables (hb_reference_table_func_t reference_table_func,
void *user_data,
hb_destroy_func_t destroy)
{
hb_face_t *face;
if (!reference_table_func || !(face = hb_object_create<hb_face_t> ())) {
if (destroy)
destroy (user_data);
return hb_face_get_empty ();
}
face->reference_table_func = reference_table_func;
face->user_data = user_data;
face->destroy = destroy;
face->upem = 0;
face->num_glyphs = (unsigned int) -1;
return face;
}
typedef struct hb_face_for_data_closure_t {
hb_blob_t *blob;
unsigned int index;
} hb_face_for_data_closure_t;
static hb_face_for_data_closure_t *
_hb_face_for_data_closure_create (hb_blob_t *blob, unsigned int index)
{
hb_face_for_data_closure_t *closure;
closure = (hb_face_for_data_closure_t *) malloc (sizeof (hb_face_for_data_closure_t));
if (unlikely (!closure))
return NULL;
closure->blob = blob;
closure->index = index;
return closure;
}
static void
_hb_face_for_data_closure_destroy (hb_face_for_data_closure_t *closure)
{
hb_blob_destroy (closure->blob);
free (closure);
}
static hb_blob_t *
_hb_face_for_data_reference_table (hb_face_t *face HB_UNUSED, hb_tag_t tag, void *user_data)
{
hb_face_for_data_closure_t *data = (hb_face_for_data_closure_t *) user_data;
if (tag == HB_TAG_NONE)
return hb_blob_reference (data->blob);
const OT::OpenTypeFontFile &ot_file = *OT::Sanitizer<OT::OpenTypeFontFile>::lock_instance (data->blob);
const OT::OpenTypeFontFace &ot_face = ot_file.get_face (data->index);
const OT::OpenTypeTable &table = ot_face.get_table_by_tag (tag);
hb_blob_t *blob = hb_blob_create_sub_blob (data->blob, table.offset, table.length);
return blob;
}
hb_face_t *
hb_face_create (hb_blob_t *blob,
unsigned int index)
{
hb_face_t *face;
if (unlikely (!blob || !hb_blob_get_length (blob)))
return hb_face_get_empty ();
hb_face_for_data_closure_t *closure = _hb_face_for_data_closure_create (OT::Sanitizer<OT::OpenTypeFontFile>::sanitize (hb_blob_reference (blob)), index);
if (unlikely (!closure))
return hb_face_get_empty ();
face = hb_face_create_for_tables (_hb_face_for_data_reference_table,
closure,
(hb_destroy_func_t) _hb_face_for_data_closure_destroy);
hb_face_set_index (face, index);
return face;
}
hb_face_t *
hb_face_get_empty (void)
{
return const_cast<hb_face_t *> (&_hb_face_nil);
}
hb_face_t *
hb_face_reference (hb_face_t *face)
{
return hb_object_reference (face);
}
void
hb_face_destroy (hb_face_t *face)
{
if (!hb_object_destroy (face)) return;
for (hb_face_t::plan_node_t *node = face->shape_plans; node; )
{
hb_face_t::plan_node_t *next = node->next;
hb_shape_plan_destroy (node->shape_plan);
free (node);
node = next;
}
#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_DESTROY(shaper, face);
#include "hb-shaper-list.hh"
#undef HB_SHAPER_IMPLEMENT
if (face->destroy)
face->destroy (face->user_data);
free (face);
}
hb_bool_t
hb_face_set_user_data (hb_face_t *face,
hb_user_data_key_t *key,
void * data,
hb_destroy_func_t destroy,
hb_bool_t replace)
{
return hb_object_set_user_data (face, key, data, destroy, replace);
}
void *
hb_face_get_user_data (hb_face_t *face,
hb_user_data_key_t *key)
{
return hb_object_get_user_data (face, key);
}
void
hb_face_make_immutable (hb_face_t *face)
{
if (hb_object_is_inert (face))
return;
face->immutable = true;
}
hb_bool_t
hb_face_is_immutable (hb_face_t *face)
{
return face->immutable;
}
hb_blob_t *
hb_face_reference_table (hb_face_t *face,
hb_tag_t tag)
{
return face->reference_table (tag);
}
hb_blob_t *
hb_face_reference_blob (hb_face_t *face)
{
return face->reference_table (HB_TAG_NONE);
}
void
hb_face_set_index (hb_face_t *face,
unsigned int index)
{
if (hb_object_is_inert (face))
return;
face->index = index;
}
unsigned int
hb_face_get_index (hb_face_t *face)
{
return face->index;
}
void
hb_face_set_upem (hb_face_t *face,
unsigned int upem)
{
if (hb_object_is_inert (face))
return;
face->upem = upem;
}
unsigned int
hb_face_get_upem (hb_face_t *face)
{
return face->get_upem ();
}
void
hb_face_t::load_upem (void) const
{
hb_blob_t *head_blob = OT::Sanitizer<OT::head>::sanitize (reference_table (HB_OT_TAG_head));
const OT::head *head_table = OT::Sanitizer<OT::head>::lock_instance (head_blob);
upem = head_table->get_upem ();
hb_blob_destroy (head_blob);
}
void
hb_face_set_glyph_count (hb_face_t *face,
unsigned int glyph_count)
{
if (hb_object_is_inert (face))
return;
face->num_glyphs = glyph_count;
}
unsigned int
hb_face_get_glyph_count (hb_face_t *face)
{
return face->get_num_glyphs ();
}
void
hb_face_t::load_num_glyphs (void) const
{
hb_blob_t *maxp_blob = OT::Sanitizer<OT::maxp>::sanitize (reference_table (HB_OT_TAG_maxp));
const OT::maxp *maxp_table = OT::Sanitizer<OT::maxp>::lock_instance (maxp_blob);
num_glyphs = maxp_table->get_num_glyphs ();
hb_blob_destroy (maxp_blob);
}
/*
* hb_font_t
*/

75
src/hb-font.h
View File

@ -32,86 +32,13 @@
#define HB_FONT_H
#include "hb-common.h"
#include "hb-blob.h"
#include "hb-face.h"
HB_BEGIN_DECLS
typedef struct hb_face_t hb_face_t;
typedef struct hb_font_t hb_font_t;
/*
* hb_face_t
*/
hb_face_t *
hb_face_create (hb_blob_t *blob,
unsigned int index);
typedef hb_blob_t * (*hb_reference_table_func_t) (hb_face_t *face, hb_tag_t tag, void *user_data);
/* calls destroy() when not needing user_data anymore */
hb_face_t *
hb_face_create_for_tables (hb_reference_table_func_t reference_table_func,
void *user_data,
hb_destroy_func_t destroy);
hb_face_t *
hb_face_get_empty (void);
hb_face_t *
hb_face_reference (hb_face_t *face);
void
hb_face_destroy (hb_face_t *face);
hb_bool_t
hb_face_set_user_data (hb_face_t *face,
hb_user_data_key_t *key,
void * data,
hb_destroy_func_t destroy,
hb_bool_t replace);
void *
hb_face_get_user_data (hb_face_t *face,
hb_user_data_key_t *key);
void
hb_face_make_immutable (hb_face_t *face);
hb_bool_t
hb_face_is_immutable (hb_face_t *face);
hb_blob_t *
hb_face_reference_table (hb_face_t *face,
hb_tag_t tag);
hb_blob_t *
hb_face_reference_blob (hb_face_t *face);
void
hb_face_set_index (hb_face_t *face,
unsigned int index);
unsigned int
hb_face_get_index (hb_face_t *face);
void
hb_face_set_upem (hb_face_t *face,
unsigned int upem);
unsigned int
hb_face_get_upem (hb_face_t *face);
void
hb_face_set_glyph_count (hb_face_t *face,
unsigned int glyph_count);
unsigned int
hb_face_get_glyph_count (hb_face_t *face);
/*
* hb_font_funcs_t

1
src/hb.h
View File

@ -31,6 +31,7 @@
#include "hb-blob.h"
#include "hb-buffer.h"
#include "hb-common.h"
#include "hb-face.h"
#include "hb-font.h"
#include "hb-set.h"
#include "hb-shape.h"