/*
* 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.
*
*/
#include "hb.hh"
#include "hb-subset-serialize.h"
#include "hb-repacker.hh"
/**
* hb_subset_serialize_or_fail:
* @table_tag: tag of the table being packed, needed to allow table specific optimizations.
* @hb_objects: raw array of struct hb_subset_serialize_object_t, which provides
* object graph info
* @num_hb_objs: number of hb_subset_serialize_object_t in the hb_objects array.
*
* Given the input object graph info, repack a table to eliminate offset overflows and
* serialize it into a continuous array of bytes. A nullptr is returned if the serializing attempt fails.
* Table specific optimizations (eg. extension promotion in GSUB/GPOS) may be performed.
* Passing HB_TAG_NONE will disable table specific optimizations.
*
* Since: 10.2.0
**/
HB_EXTERN hb_blob_t *
hb_subset_serialize_or_fail (hb_tag_t table_tag,
hb_subset_serialize_object_t *hb_objects,
unsigned num_hb_objs)
{
hb_vector_t<const hb_subset_serialize_object_t *> packed;
packed.alloc (num_hb_objs + 1);
packed.push (nullptr);
for (unsigned i = 0 ; i < num_hb_objs ; i++)
packed.push (&(hb_objects[i]));
return hb_resolve_overflows (packed, table_tag, 20, true);
}
