third_party/harfbuzz-ng/src/hb-gobject-structs.cc

   1 /*
   2  * Copyright © 2011  Google, Inc.
   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  * Google Author(s): Behdad Esfahbod
  25  */
  26
  27 #include "hb-private.hh"
  28
  29 /* g++ didn't like older gtype.h gcc-only code path. */
  30 #include <glib.h>
  31 #if !GLIB_CHECK_VERSION(2,29,16)
  32 #undef __GNUC__
  33 #undef __GNUC_MINOR__
  34 #define __GNUC__ 2
  35 #define __GNUC_MINOR__ 6
  36 #endif
  37
  38 #include "hb-gobject.h"
  39
  40 #define HB_DEFINE_BOXED_TYPE(name,copy_func,free_func) \
  41 GType \
  42 hb_gobject_##name##_get_type (void) \
  43 { \
  44    static gsize type_id = 0; \
  45    if (g_once_init_enter (&type_id)) { \
  46       GType id = g_boxed_type_register_static (g_intern_static_string ("hb_" #name "_t"), \
  47                                                (GBoxedCopyFunc) copy_func, \
  48                                                (GBoxedFreeFunc) free_func); \
  49       g_once_init_leave (&type_id, id); \
  50    } \
  51    return type_id; \
  52 }
  53
  54 #define HB_DEFINE_OBJECT_TYPE(name) \
  55         HB_DEFINE_BOXED_TYPE (name, hb_##name##_reference, hb_##name##_destroy);
  56
  57 HB_DEFINE_OBJECT_TYPE (buffer)
  58 HB_DEFINE_OBJECT_TYPE (blob)
  59 HB_DEFINE_OBJECT_TYPE (face)
  60 HB_DEFINE_OBJECT_TYPE (font)
  61 HB_DEFINE_OBJECT_TYPE (font_funcs)
  62 HB_DEFINE_OBJECT_TYPE (set)
  63 HB_DEFINE_OBJECT_TYPE (shape_plan)
  64 HB_DEFINE_OBJECT_TYPE (unicode_funcs)
  65
  66
  67 static hb_feature_t *feature_reference (hb_feature_t *g)
  68 {
  69   hb_feature_t *c = (hb_feature_t *) calloc (1, sizeof (hb_feature_t));
  70   if (unlikely (!c)) return NULL;
  71   *c = *g;
  72   return c;
  73 }
  74 static void feature_destroy (hb_feature_t *g) { free (g); }
  75 HB_DEFINE_BOXED_TYPE (feature, feature_reference, feature_destroy)
  76
  77 static hb_glyph_info_t *glyph_info_reference (hb_glyph_info_t *g)
  78 {
  79   hb_glyph_info_t *c = (hb_glyph_info_t *) calloc (1, sizeof (hb_glyph_info_t));
  80   if (unlikely (!c)) return NULL;
  81   *c = *g;
  82   return c;
  83 }
  84 static void glyph_info_destroy (hb_glyph_info_t *g) { free (g); }
  85 HB_DEFINE_BOXED_TYPE (glyph_info, glyph_info_reference, glyph_info_destroy)
  86
  87 static hb_glyph_position_t *glyph_position_reference (hb_glyph_position_t *g)
  88 {
  89   hb_glyph_position_t *c = (hb_glyph_position_t *) calloc (1, sizeof (hb_glyph_position_t));
  90   if (unlikely (!c)) return NULL;
  91   *c = *g;
  92   return c;
  93 }
  94 static void glyph_position_destroy (hb_glyph_position_t *g) { free (g); }
  95 HB_DEFINE_BOXED_TYPE (glyph_position, glyph_position_reference, glyph_position_destroy)
  96
  97 static hb_segment_properties_t *segment_properties_reference (hb_segment_properties_t *g)
  98 {
  99   hb_segment_properties_t *c = (hb_segment_properties_t *) calloc (1, sizeof (hb_segment_properties_t));
 100   if (unlikely (!c)) return NULL;
 101   *c = *g;
 102   return c;
 103 }
 104 static void segment_properties_destroy (hb_segment_properties_t *g) { free (g); }
 105 HB_DEFINE_BOXED_TYPE (segment_properties, segment_properties_reference, segment_properties_destroy)
 106
 107 static hb_user_data_key_t user_data_key_reference (hb_user_data_key_t l) { return l; }
 108 static void user_data_key_destroy (hb_user_data_key_t l) { }
 109 HB_DEFINE_BOXED_TYPE (user_data_key, user_data_key_reference, user_data_key_destroy)
 110
 111
 112 static hb_language_t *language_reference (hb_language_t *l)
 113 {
 114   hb_language_t *c = (hb_language_t *) calloc (1, sizeof (hb_language_t));
 115   if (unlikely (!c)) return NULL;
 116   *c = *l;
 117   return c;
 118 }
 119 static void language_destroy (hb_language_t *l) { free (l); }
 120 HB_DEFINE_BOXED_TYPE (language, language_reference, language_destroy)