1 /*
2  * Copyright © 2015  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 #ifndef HB_OT_GLYF_TABLE_HH
28 #define HB_OT_GLYF_TABLE_HH
29 
30 #include "hb-open-type-private.hh"
31 
32 
33 namespace OT {
34 
35 
36 /*
37  * loca -- Index to Location
38  */
39 
40 #define HB_OT_TAG_loca HB_TAG('l','o','c','a')
41 
42 
43 struct loca
44 {
45   static const hb_tag_t tableTag = HB_OT_TAG_loca;
46 
sanitizeOT::loca47   inline bool sanitize (hb_sanitize_context_t *c) const
48   {
49     TRACE_SANITIZE (this);
50     return_trace (true);
51   }
52 
53   public:
54   union {
55     USHORT	shortsZ[VAR];		/* Location offset divided by 2. */
56     ULONG	longsZ[VAR];		/* Location offset. */
57   } u;
58   DEFINE_SIZE_ARRAY (0, u.longsZ);
59 };
60 
61 
62 /*
63  * glyf -- TrueType Glyph Data
64  */
65 
66 #define HB_OT_TAG_glyf HB_TAG('g','l','y','f')
67 
68 
69 struct glyf
70 {
71   static const hb_tag_t tableTag = HB_OT_TAG_glyf;
72 
sanitizeOT::glyf73   inline bool sanitize (hb_sanitize_context_t *c) const
74   {
75     TRACE_SANITIZE (this);
76     /* We don't check for anything specific here.  The users of the
77      * struct do all the hard work... */
78     return_trace (true);
79   }
80 
81   public:
82   BYTE		dataX[VAR];		/* Glyphs data. */
83 
84   DEFINE_SIZE_ARRAY (0, dataX);
85 };
86 
87 struct glyfGlyphHeader
88 {
89   SHORT		numberOfContours;	/* If the number of contours is
90 					 * greater than or equal to zero,
91 					 * this is a simple glyph; if negative,
92 					 * this is a composite glyph. */
93   FWORD		xMin;			/* Minimum x for coordinate data. */
94   FWORD		yMin;			/* Minimum y for coordinate data. */
95   FWORD		xMax;			/* Maximum x for coordinate data. */
96   FWORD		yMax;			/* Maximum y for coordinate data. */
97 
98   DEFINE_SIZE_STATIC (10);
99 };
100 
101 } /* namespace OT */
102 
103 
104 #endif /* HB_OT_GLYF_TABLE_HH */
105