1 /*
2  * Copyright © 2018  Ebrahim Byagowi
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 
25 #ifndef HB_AAT_LAYOUT_ANKR_TABLE_HH
26 #define HB_AAT_LAYOUT_ANKR_TABLE_HH
27 
28 #include "hb-aat-layout-common-private.hh"
29 
30 #define HB_AAT_TAG_ankr HB_TAG('a','n','k','r')
31 
32 
33 namespace AAT {
34 
35 
36 /*
37  * ankr -- Anchor point
38  */
39 
40 struct Anchor
41 {
sanitizeAAT::Anchor42   inline bool sanitize (hb_sanitize_context_t *c) const
43   {
44     TRACE_SANITIZE (this);
45     return_trace (c->check_struct (this));
46   }
47 
48   FWORD		xCoordinate;
49   FWORD		yCoordinate;
50   public:
51   DEFINE_SIZE_STATIC (4);
52 };
53 
54 struct ankr
55 {
56   static const hb_tag_t tableTag = HB_AAT_TAG_ankr;
57 
sanitizeAAT::ankr58   inline bool sanitize (hb_sanitize_context_t *c) const
59   {
60     TRACE_SANITIZE (this);
61     return_trace (c->check_struct (this) && version == 0 &&
62 		  lookupTable.sanitize (c, this) &&
63 		  anchors.sanitize (c, this));
64   }
65 
66   protected:
67   HBUINT16			version; 	/* Version number (set to zero) */
68   HBUINT16			flags;		/* Flags (currently unused; set to zero) */
69   LOffsetTo<Lookup<HBUINT16> >	lookupTable;	/* Offset to the table's lookup table */
70   LOffsetTo<ArrayOf<Anchor, HBUINT32> >
71 				anchors;	/* Offset to the glyph data table */
72 
73   public:
74   DEFINE_SIZE_STATIC (12);
75 };
76 
77 } /* namespace AAT */
78 
79 
80 #endif /* HB_AAT_LAYOUT_ANKR_TABLE_HH */
81