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/*
* Copyright © 2022 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.
*
*/
#ifndef HB_SUBSET_REPACKER_H
#define HB_SUBSET_REPACKER_H
#include "hb.h"
HB_BEGIN_DECLS
#ifdef HB_EXPERIMENTAL_API
/*
* struct hb_link_t
* width: offsetSize in bytes
* position: position of the offset field in bytes
* from beginning of subtable
* objidx: index of subtable
*/
struct hb_link_t
{
unsigned width;
unsigned position;
unsigned objidx;
};
typedef struct hb_link_t hb_link_t;
/*
* struct hb_object_t
* head: start of object data
* tail: end of object data
* num_real_links: num of offset field in the object
* real_links: pointer to array of offset info
* num_virtual_links: num of objects that must be packed
* after current object in the final serialized order
* virtual_links: array of virtual link info
*/
struct hb_object_t
{
char *head;
char *tail;
unsigned num_real_links;
hb_link_t *real_links;
unsigned num_virtual_links;
hb_link_t *virtual_links;
};
typedef struct hb_object_t hb_object_t;
HB_EXTERN hb_blob_t*
hb_subset_repack_or_fail (hb_tag_t table_tag,
hb_object_t* hb_objects,
unsigned num_hb_objs);
#endif
HB_END_DECLS
#endif /* HB_SUBSET_REPACKER_H */
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