gfx/harfbuzz/src/hb-ot-meta.cc

   1 /*
   2  * Copyright © 2019  Ebrahim Byagowi
   3  *
   4  *  This is part of HarfBuzz, a text shaping library.
   5  *
   6  * Permission is hereby granted, without written agreement and without
   7  * license or royalty fees, to use, copy, modify, and distribute this
   8  * software and its documentation for any purpose, provided that the
   9  * above copyright notice and the following two paragraphs appear in
  10  * all copies of this software.
  11  *
  12  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  13  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  14  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  15  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  16  * DAMAGE.
  17  *
  18  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  19  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  20  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  21  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  22  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  23  */
  24
  25 #include "hb.hh"
  26
  27 #ifndef HB_NO_META
  28
  29 #include "hb-ot-meta-table.hh"
  30
  31 /**
  32  * SECTION:hb-ot-meta
  33  * @title: hb-ot-meta
  34  * @short_description: OpenType Metadata
  35  * @include: hb-ot.h
  36  *
  37  * Functions for fetching metadata from fonts.
  38  **/
  39
  40 /**
  41  * hb_ot_meta_get_entry_tags:
  42  * @face: a face object
  43  * @start_offset: iteration's start offset
  44  * @entries_count:(inout) (optional): buffer size as input, filled size as output
  45  * @entries: (out caller-allocates) (array length=entries_count): entries tags buffer
  46  *
  47  * Fetches all available feature types.
  48  *
  49  * Return value: Number of all available feature types.
  50  *
  51  * Since: 2.6.0
  52  **/
  53 unsigned int
  54 hb_ot_meta_get_entry_tags (hb_face_t        *face,
  55                            unsigned int      start_offset,
  56                            unsigned int     *entries_count, /* IN/OUT.  May be NULL. */
  57                            hb_ot_meta_tag_t *entries        /* OUT.     May be NULL. */)
  58 {
  59   return face->table.meta->get_entries (start_offset, entries_count, entries);
  60 }
  61
  62 /**
  63  * hb_ot_meta_reference_entry:
  64  * @face: a #hb_face_t object.
  65  * @meta_tag: tag of metadata you like to have.
  66  *
  67  * It fetches metadata entry of a given tag from a font.
  68  *
  69  * Returns: (transfer full): A blob containing the blob.
  70  *
  71  * Since: 2.6.0
  72  **/
  73 hb_blob_t *
  74 hb_ot_meta_reference_entry (hb_face_t *face, hb_ot_meta_tag_t meta_tag)
  75 {
  76   return face->table.meta->reference_entry (meta_tag);
  77 }
  78
  79 #endif