2 * Copyright © 2009 Red Hat, Inc.
3 * Copyright © 2018 Google, Inc.
5 * This is part of HarfBuzz, a text shaping library.
7 * Permission is hereby granted, without written agreement and without
8 * license or royalty fees, to use, copy, modify, and distribute this
9 * software and its documentation for any purpose, provided that the
10 * above copyright notice and the following two paragraphs appear in
11 * all copies of this software.
13 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
14 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
15 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
16 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
19 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
20 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
21 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
22 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
23 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
25 * Red Hat Author(s): Behdad Esfahbod
26 * Google Author(s): Behdad Esfahbod
41 void fini_shallow () { destroy_user_data (); }
43 void destroy_user_data ()
53 HB_INTERNAL
bool try_make_writable ();
54 HB_INTERNAL
bool try_make_writable_inplace ();
55 HB_INTERNAL
bool try_make_writable_inplace_unix ();
57 hb_bytes_t
as_bytes () const { return hb_bytes_t (data
, length
); }
58 template <typename Type
>
59 const Type
* as () const { return as_bytes ().as
<Type
> (); }
62 hb_object_header_t header
;
66 hb_memory_mode_t mode
;
69 hb_destroy_func_t destroy
;
80 typedef hb_remove_pointer
<P
> T
;
82 hb_blob_ptr_t (hb_blob_t
*b_
= nullptr) : b (b_
) {}
83 hb_blob_t
* operator = (hb_blob_t
*b_
) { return b
= b_
; }
84 const T
* operator -> () const { return get (); }
85 const T
& operator * () const { return *get (); }
86 template <typename C
> operator const C
* () const { return get (); }
87 operator const char * () const { return (const char *) get (); }
88 const T
* get () const { return b
->as
<T
> (); }
89 hb_blob_t
* get_blob () const { return b
.get_raw (); }
90 unsigned int get_length () const { return b
.get ()->length
; }
91 void destroy () { hb_blob_destroy (b
.get_raw ()); b
= nullptr; }
94 hb_nonnull_ptr_t
<hb_blob_t
> b
;
98 #endif /* HB_BLOB_HH */