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 #define HB_DEFINE_VALUE_TYPE(name) \
58 	static hb_##name##_t *_hb_##name##_reference (const hb_##name##_t *l) \
59 	{ \
60 	  hb_##name##_t *c = (hb_##name##_t *) calloc (1, sizeof (hb_##name##_t)); \
61 	  if (unlikely (!c)) return NULL; \
62 	  *c = *l; \
63 	  return c; \
64 	} \
65 	static void _hb_##name##_destroy (hb_##name##_t *l) { free (l); } \
66 	HB_DEFINE_BOXED_TYPE (name, _hb_##name##_reference, _hb_##name##_destroy);
67 
68 HB_DEFINE_OBJECT_TYPE (buffer)
69 HB_DEFINE_OBJECT_TYPE (blob)
70 HB_DEFINE_OBJECT_TYPE (face)
71 HB_DEFINE_OBJECT_TYPE (font)
72 HB_DEFINE_OBJECT_TYPE (font_funcs)
73 HB_DEFINE_OBJECT_TYPE (set)
74 HB_DEFINE_OBJECT_TYPE (shape_plan)
75 HB_DEFINE_OBJECT_TYPE (unicode_funcs)
76 HB_DEFINE_VALUE_TYPE (feature)
77 HB_DEFINE_VALUE_TYPE (glyph_info)
78 HB_DEFINE_VALUE_TYPE (glyph_position)
79 HB_DEFINE_VALUE_TYPE (segment_properties)
80 HB_DEFINE_VALUE_TYPE (user_data_key)
81