kc3-lang/harfbuzz/src/hb-subset.cc

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• Hash : 74d39ed2
  Author :
  Date : 2018-01-31T15:20:52
  

  Attach add a hb_face_t to hb_subset_face_t.
  

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• src/hb-subset.cc

• /*
   * 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.
   *
   * Google Author(s): Garret Rieger, Rod Sheeter
   */
  
  #include "hb-private.hh"
  
  #include "hb-object-private.hh"
  
  
  struct hb_subset_profile_t {
    hb_object_header_t header;
    ASSERT_POD ();
  };
  
  struct hb_subset_input_t {
    hb_object_header_t header;
    ASSERT_POD ();
  };
  
  struct hb_subset_face_t {
    hb_object_header_t header;
    ASSERT_POD ();
  
    hb_face_t *face;
  };
  
  
  /**
   * hb_subset_profile_create:
   *
   * Return value: New profile with default settings.
   *
   * Since: 1.7.5
   **/
  hb_subset_profile_t *
  hb_subset_profile_create ()
  {
    return hb_object_create<hb_subset_profile_t>();
  }
  
  /**
   * hb_subset_profile_destroy:
   *
   * Since: 1.7.5
   **/
  void
  hb_subset_profile_destroy (hb_subset_profile_t *profile)
  {
    if (!hb_object_destroy (profile)) return;
  
    free (profile);
  }
  
  /**
   * hb_subset_input_create:
   *
   * Return value: New subset input.
   *
   * Since: 1.7.5
   **/
  hb_subset_input_t *
  hb_subset_input_create()
  {
    return hb_object_create<hb_subset_input_t>();
  }
  
  /**
   * hb_subset_input_destroy:
   *
   * Since: 1.7.5
   **/
  void
  hb_subset_input_destroy(hb_subset_input_t *subset_input)
  {
    if (!hb_object_destroy (subset_input)) return;
  
    free (subset_input);
  }
  
  /**
   * hb_subset_face_create:
   *
   * Return value: New subset face.
   *
   * Since: 1.7.5
   **/
  hb_subset_face_t *
  hb_subset_face_create(hb_face_t *face)
  {
    if (unlikely (!face))
      face = hb_face_get_empty();
  
    hb_subset_face_t *subset_face = hb_object_create<hb_subset_face_t> ();
    subset_face->face = hb_face_reference (face);
  
    return subset_face;
  }
  
  /**
   * hb_subset_face_destroy:
   *
   * Since: 1.7.5
   **/
  void
  hb_subset_face_destroy(hb_subset_face_t *subset_face)
  {
    if (!hb_object_destroy (subset_face)) return;
  
    hb_face_destroy(subset_face->face);
    free (subset_face);
  }
  
  /**
   * hb_subset:
   * @profile: profile to use for the subsetting.
   * @input: input to use for the subsetting.
   * @face: font face data to be subset.
   * @result: subsetting result.
   *
   * Subsets a font according to provided profile and input.
   **/
  hb_bool_t
  hb_subset(hb_subset_profile_t *profile,
            hb_subset_input_t *input,
            hb_subset_face_t *face,
            hb_blob_t **result /* OUT */)
  {
    if (!profile || !input || !face) return false;
  
    *result = hb_face_reference_blob(face->face);
    return true;
  }
  

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