hb-gobject-structs.cc revision 71439a8c7ae9df25193bc3ad0f203117d2884a19 
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) \
41GType \
42hb_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
57HB_DEFINE_OBJECT_TYPE (buffer)
58HB_DEFINE_OBJECT_TYPE (blob)
59HB_DEFINE_OBJECT_TYPE (face)
60HB_DEFINE_OBJECT_TYPE (font)
61HB_DEFINE_OBJECT_TYPE (font_funcs)
62HB_DEFINE_OBJECT_TYPE (set)
63HB_DEFINE_OBJECT_TYPE (shape_plan)
64HB_DEFINE_OBJECT_TYPE (unicode_funcs)
65
66
67static 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}
74static void feature_destroy (hb_feature_t *g) { free (g); }
75HB_DEFINE_BOXED_TYPE (feature, feature_reference, feature_destroy)
76
77static 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}
84static void glyph_info_destroy (hb_glyph_info_t *g) { free (g); }
85HB_DEFINE_BOXED_TYPE (glyph_info, glyph_info_reference, glyph_info_destroy)
86
87static 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}
94static void glyph_position_destroy (hb_glyph_position_t *g) { free (g); }
95HB_DEFINE_BOXED_TYPE (glyph_position, glyph_position_reference, glyph_position_destroy)
96
97static hb_language_t language_reference (hb_language_t l) { return l; }
98static void language_destroy (hb_language_t l) { }
99HB_DEFINE_BOXED_TYPE (language, language_reference, language_destroy)
100
101static hb_segment_properties_t *segment_properties_reference (hb_segment_properties_t *g)
102{
103  hb_segment_properties_t *c = (hb_segment_properties_t *) calloc (1, sizeof (hb_segment_properties_t));
104  if (unlikely (!c)) return NULL;
105  *c = *g;
106  return c;
107}
108static void segment_properties_destroy (hb_segment_properties_t *g) { free (g); }
109HB_DEFINE_BOXED_TYPE (segment_properties, segment_properties_reference, segment_properties_destroy)
110
111static hb_user_data_key_t user_data_key_reference (hb_user_data_key_t l) { return l; }
112static void user_data_key_destroy (hb_user_data_key_t l) { }
113HB_DEFINE_BOXED_TYPE (user_data_key, user_data_key_reference, user_data_key_destroy)
114