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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /src/3rdparty/freetype/docs/reference/ft2-ot_validation.html
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+<!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-2.3.9 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-2.3.9 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 (freetype/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 (freetype/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 which 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 which 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&nbsp;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 (freetype/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>
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