Home | History | Annotate | Download | only in src 
      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 nullptr; \
     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 
     82 HB_DEFINE_VALUE_TYPE (ot_math_glyph_variant)
     83 HB_DEFINE_VALUE_TYPE (ot_math_glyph_part)
     84