1 /* 2 * Copyright 2016 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_POST_TABLE_HH 28 #define HB_OT_POST_TABLE_HH 29 30 #include "hb-open-type-private.hh" 31 32 33 namespace OT { 34 35 36 /* 37 * post -- PostScript 38 */ 39 40 #define HB_OT_TAG_post HB_TAG('p','o','s','t') 41 42 43 struct postV2Tail 44 { 45 inline bool sanitize (hb_sanitize_context_t *c) const 46 { 47 TRACE_SANITIZE (this); 48 return_trace (numberOfGlyphs.sanitize (c) && 49 c->check_array (glyphNameIndex, sizeof (USHORT), numberOfGlyphs)); 50 } 51 52 USHORT numberOfGlyphs; /* Number of glyphs (this should be the 53 * same as numGlyphs in 'maxp' table). */ 54 USHORT glyphNameIndex[VAR]; /* This is not an offset, but is the 55 * ordinal number of the glyph in 'post' 56 * string tables. */ 57 BYTE namesX[VAR]; /* Glyph names with length bytes [variable] 58 * (a Pascal string). */ 59 60 DEFINE_SIZE_ARRAY2 (2, glyphNameIndex, namesX); 61 }; 62 63 struct post 64 { 65 static const hb_tag_t tableTag = HB_OT_TAG_post; 66 67 inline bool sanitize (hb_sanitize_context_t *c) const 68 { 69 TRACE_SANITIZE (this); 70 if (unlikely (!c->check_struct (this))) 71 return_trace (false); 72 if (version.to_int () == 0x00020000) 73 { 74 const postV2Tail &v2 = StructAfter<postV2Tail>(*this); 75 return_trace (v2.sanitize (c)); 76 } 77 return_trace (true); 78 } 79 80 public: 81 FixedVersion<>version; /* 0x00010000 for version 1.0 82 * 0x00020000 for version 2.0 83 * 0x00025000 for version 2.5 (deprecated) 84 * 0x00030000 for version 3.0 */ 85 Fixed italicAngle; /* Italic angle in counter-clockwise degrees 86 * from the vertical. Zero for upright text, 87 * negative for text that leans to the right 88 * (forward). */ 89 FWORD underlinePosition; /* This is the suggested distance of the top 90 * of the underline from the baseline 91 * (negative values indicate below baseline). 92 * The PostScript definition of this FontInfo 93 * dictionary key (the y coordinate of the 94 * center of the stroke) is not used for 95 * historical reasons. The value of the 96 * PostScript key may be calculated by 97 * subtracting half the underlineThickness 98 * from the value of this field. */ 99 FWORD underlineThickness; /* Suggested values for the underline 100 thickness. */ 101 ULONG isFixedPitch; /* Set to 0 if the font is proportionally 102 * spaced, non-zero if the font is not 103 * proportionally spaced (i.e. monospaced). */ 104 ULONG minMemType42; /* Minimum memory usage when an OpenType font 105 * is downloaded. */ 106 ULONG maxMemType42; /* Maximum memory usage when an OpenType font 107 * is downloaded. */ 108 ULONG minMemType1; /* Minimum memory usage when an OpenType font 109 * is downloaded as a Type 1 font. */ 110 ULONG maxMemType1; /* Maximum memory usage when an OpenType font 111 * is downloaded as a Type 1 font. */ 112 /*postV2Tail v2[VAR];*/ 113 DEFINE_SIZE_STATIC (32); 114 }; 115 116 } /* namespace OT */ 117 118 119 #endif /* HB_OT_POST_TABLE_HH */ 120
