/usr/share/doc/libfreetype6/reference/ft2-ot_validation.html is in libfreetype6-dev 2.5.2-1ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>FreeType-2.5.2 API Reference</title>
<style type="text/css">
body { font-family: Verdana, Geneva, Arial, Helvetica, serif;
color: #000000;
background: #FFFFFF; }
p { text-align: justify; }
h1 { text-align: center; }
li { text-align: justify; }
td { padding: 0 0.5em 0 0.5em; }
td.left { padding: 0 0.5em 0 0.5em;
text-align: left; }
a:link { color: #0000EF; }
a:visited { color: #51188E; }
a:hover { color: #FF0000; }
span.keyword { font-family: monospace;
text-align: left;
white-space: pre;
color: darkblue; }
pre.colored { color: blue; }
ul.empty { list-style-type: none; }
</style>
</head>
<body>
<table align=center><tr><td><font size=-1>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-1>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<center><h1>FreeType-2.5.2 API Reference</h1></center>
<center><h1>
OpenType Validation
</h1></center>
<h2>Synopsis</h2>
<table align=center cellspacing=5 cellpadding=0 border=0>
<tr><td></td><td><a href="#FT_VALIDATE_OTXXX">FT_VALIDATE_OTXXX</a></td><td></td><td><a href="#FT_OpenType_Validate">FT_OpenType_Validate</a></td><td></td><td><a href="#FT_OpenType_Free">FT_OpenType_Free</a></td></tr>
</table><br><br>
<table align=center width="87%"><tr><td>
<p>This section contains the declaration of functions to validate some OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).</p>
</td></tr></table><br>
<table align=center width="75%"><tr><td>
<h4><a name="FT_VALIDATE_OTXXX">FT_VALIDATE_OTXXX</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_OPENTYPE_VALIDATE_H (ftotval.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
#define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_BASE</a> 0x0100
#define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GDEF</a> 0x0200
#define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GPOS</a> 0x0400
#define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GSUB</a> 0x0800
#define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_JSTF</a> 0x1000
#define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_MATH</a> 0x2000
#define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_OT</a> <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_BASE</a> | \
<a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GDEF</a> | \
<a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GPOS</a> | \
<a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GSUB</a> | \
<a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_JSTF</a> | \
<a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_MATH</a>
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>A list of bit-field constants used with <a href="ft2-ot_validation.html#FT_OpenType_Validate">FT_OpenType_Validate</a> to indicate which OpenType tables should be validated.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>values</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>FT_VALIDATE_BASE</b></td><td>
<p>Validate BASE table.</p>
</td></tr>
<tr valign=top><td><b>FT_VALIDATE_GDEF</b></td><td>
<p>Validate GDEF table.</p>
</td></tr>
<tr valign=top><td><b>FT_VALIDATE_GPOS</b></td><td>
<p>Validate GPOS table.</p>
</td></tr>
<tr valign=top><td><b>FT_VALIDATE_GSUB</b></td><td>
<p>Validate GSUB table.</p>
</td></tr>
<tr valign=top><td><b>FT_VALIDATE_JSTF</b></td><td>
<p>Validate JSTF table.</p>
</td></tr>
<tr valign=top><td><b>FT_VALIDATE_MATH</b></td><td>
<p>Validate MATH table.</p>
</td></tr>
<tr valign=top><td><b>FT_VALIDATE_OT</b></td><td>
<p>Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).</p>
</td></tr>
</table>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_OpenType_Validate">FT_OpenType_Validate</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_OPENTYPE_VALIDATE_H (ftotval.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
<b>FT_OpenType_Validate</b>( <a href="ft2-base_interface.html#FT_Face">FT_Face</a> face,
<a href="ft2-basic_types.html#FT_UInt">FT_UInt</a> validation_flags,
<a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a> *BASE_table,
<a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a> *GDEF_table,
<a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a> *GPOS_table,
<a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a> *GSUB_table,
<a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a> *JSTF_table );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Validate various OpenType tables to assure that all offsets and indices are valid. The idea is that a higher-level library that actually does the text layout can access those tables without error checking (which can be quite time consuming).</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>face</b></td><td>
<p>A handle to the input face.</p>
</td></tr>
<tr valign=top><td><b>validation_flags</b></td><td>
<p>A bit field that specifies the tables to be validated. See <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_OTXXX</a> for possible values.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>output</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>BASE_table</b></td><td>
<p>A pointer to the BASE table.</p>
</td></tr>
<tr valign=top><td><b>GDEF_table</b></td><td>
<p>A pointer to the GDEF table.</p>
</td></tr>
<tr valign=top><td><b>GPOS_table</b></td><td>
<p>A pointer to the GPOS table.</p>
</td></tr>
<tr valign=top><td><b>GSUB_table</b></td><td>
<p>A pointer to the GSUB table.</p>
</td></tr>
<tr valign=top><td><b>JSTF_table</b></td><td>
<p>A pointer to the JSTF table.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
<p>FreeType error code. 0 means success.</p>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>This function only works with OpenType fonts, returning an error otherwise.</p>
<p>After use, the application should deallocate the five tables with <a href="ft2-ot_validation.html#FT_OpenType_Free">FT_OpenType_Free</a>. A NULL value indicates that the table either doesn't exist in the font, or the application hasn't asked for validation.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
<table align=center width="75%"><tr><td>
<h4><a name="FT_OpenType_Free">FT_OpenType_Free</a></h4>
<table align=center width="87%"><tr><td>
Defined in FT_OPENTYPE_VALIDATE_H (ftotval.h).
</td></tr></table><br>
<table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
FT_EXPORT( <span class="keyword">void</span> )
<b>FT_OpenType_Free</b>( <a href="ft2-base_interface.html#FT_Face">FT_Face</a> face,
<a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a> table );
</pre></table><br>
<table align=center width="87%"><tr><td>
<p>Free the buffer allocated by OpenType validator.</p>
</td></tr></table><br>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
<p></p>
<table cellpadding=3 border=0>
<tr valign=top><td><b>face</b></td><td>
<p>A handle to the input face.</p>
</td></tr>
<tr valign=top><td><b>table</b></td><td>
<p>The pointer to the buffer that is allocated by <a href="ft2-ot_validation.html#FT_OpenType_Validate">FT_OpenType_Validate</a>.</p>
</td></tr>
</table>
</td></tr></table>
<table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
<p>This function must be used to free the buffer allocated by <a href="ft2-ot_validation.html#FT_OpenType_Validate">FT_OpenType_Validate</a> only.</p>
</td></tr></table>
</td></tr></table>
<hr width="75%">
<table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
<td width="100%"></td>
<td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
</body>
</html>
|