Subversion Repositories Kolibri OS

Rev

Blame | Last modification | View Log | RSS feed

  1. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
  2. "http://www.w3.org/TR/html4/loose.dtd">
  3. <html>
  4. <head>
  5. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  6. <title>FreeType-2.5.0 API Reference</title>
  7. <style type="text/css">
  8.   body { font-family: Verdana, Geneva, Arial, Helvetica, serif;
  9.          color: #000000;
  10.          background: #FFFFFF; }
  11.  
  12.   p { text-align: justify; }
  13.   h1 { text-align: center; }
  14.   li { text-align: justify; }
  15.   td { padding: 0 0.5em 0 0.5em; }
  16.   td.left { padding: 0 0.5em 0 0.5em;
  17.             text-align: left; }
  18.  
  19.   a:link { color: #0000EF; }
  20.   a:visited { color: #51188E; }
  21.   a:hover { color: #FF0000; }
  22.  
  23.   span.keyword { font-family: monospace;
  24.                  text-align: left;
  25.                  white-space: pre;
  26.                  color: darkblue; }
  27.  
  28.   pre.colored { color: blue; }
  29.  
  30.   ul.empty { list-style-type: none; }
  31. </style>
  32. </head>
  33. <body>
  34.  
  35. <table align=center><tr><td><font size=-1>[<a href="ft2-index.html">Index</a>]</font></td>
  36. <td width="100%"></td>
  37. <td><font size=-1>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  38. <center><h1>FreeType-2.5.0 API Reference</h1></center>
  39.  
  40. <center><h1>
  41. OpenType Validation
  42. </h1></center>
  43. <h2>Synopsis</h2>
  44. <table align=center cellspacing=5 cellpadding=0 border=0>
  45. <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>
  46. </table><br><br>
  47.  
  48. <table align=center width="87%"><tr><td>
  49. <p>This section contains the declaration of functions to validate some OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).</p>
  50. </td></tr></table><br>
  51. <table align=center width="75%"><tr><td>
  52. <h4><a name="FT_VALIDATE_OTXXX">FT_VALIDATE_OTXXX</a></h4>
  53. <table align=center width="87%"><tr><td>
  54. Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h).
  55. </td></tr></table><br>
  56. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  57.  
  58. #define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_BASE</a>  0x0100
  59. #define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GDEF</a>  0x0200
  60. #define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GPOS</a>  0x0400
  61. #define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GSUB</a>  0x0800
  62. #define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_JSTF</a>  0x1000
  63. #define <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_MATH</a>  0x2000
  64.  
  65. #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> | \
  66.                         <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GDEF</a> | \
  67.                         <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GPOS</a> | \
  68.                         <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_GSUB</a> | \
  69.                         <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_JSTF</a> | \
  70.                         <a href="ft2-ot_validation.html#FT_VALIDATE_OTXXX">FT_VALIDATE_MATH</a>
  71.  
  72. </pre></table><br>
  73. <table align=center width="87%"><tr><td>
  74. <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>
  75. </td></tr></table><br>
  76. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>values</b></em></td></tr><tr><td>
  77. <p></p>
  78. <table cellpadding=3 border=0>
  79. <tr valign=top><td><b>FT_VALIDATE_BASE</b></td><td>
  80. <p>Validate BASE table.</p>
  81. </td></tr>
  82. <tr valign=top><td><b>FT_VALIDATE_GDEF</b></td><td>
  83. <p>Validate GDEF table.</p>
  84. </td></tr>
  85. <tr valign=top><td><b>FT_VALIDATE_GPOS</b></td><td>
  86. <p>Validate GPOS table.</p>
  87. </td></tr>
  88. <tr valign=top><td><b>FT_VALIDATE_GSUB</b></td><td>
  89. <p>Validate GSUB table.</p>
  90. </td></tr>
  91. <tr valign=top><td><b>FT_VALIDATE_JSTF</b></td><td>
  92. <p>Validate JSTF table.</p>
  93. </td></tr>
  94. <tr valign=top><td><b>FT_VALIDATE_MATH</b></td><td>
  95. <p>Validate MATH table.</p>
  96. </td></tr>
  97. <tr valign=top><td><b>FT_VALIDATE_OT</b></td><td>
  98. <p>Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).</p>
  99. </td></tr>
  100. </table>
  101. </td></tr></table>
  102. </td></tr></table>
  103. <hr width="75%">
  104. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  105. <td width="100%"></td>
  106. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  107.  
  108. <table align=center width="75%"><tr><td>
  109. <h4><a name="FT_OpenType_Validate">FT_OpenType_Validate</a></h4>
  110. <table align=center width="87%"><tr><td>
  111. Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h).
  112. </td></tr></table><br>
  113. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  114.  
  115.   FT_EXPORT( <a href="ft2-basic_types.html#FT_Error">FT_Error</a> )
  116.   <b>FT_OpenType_Validate</b>( <a href="ft2-base_interface.html#FT_Face">FT_Face</a>    face,
  117.                         <a href="ft2-basic_types.html#FT_UInt">FT_UInt</a>    validation_flags,
  118.                         <a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a>  *BASE_table,
  119.                         <a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a>  *GDEF_table,
  120.                         <a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a>  *GPOS_table,
  121.                         <a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a>  *GSUB_table,
  122.                         <a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a>  *JSTF_table );
  123.  
  124. </pre></table><br>
  125. <table align=center width="87%"><tr><td>
  126. <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>
  127. </td></tr></table><br>
  128. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
  129. <p></p>
  130. <table cellpadding=3 border=0>
  131. <tr valign=top><td><b>face</b></td><td>
  132. <p>A handle to the input face.</p>
  133. </td></tr>
  134. <tr valign=top><td><b>validation_flags</b></td><td>
  135. <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>
  136. </td></tr>
  137. </table>
  138. </td></tr></table>
  139. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>output</b></em></td></tr><tr><td>
  140. <p></p>
  141. <table cellpadding=3 border=0>
  142. <tr valign=top><td><b>BASE_table</b></td><td>
  143. <p>A pointer to the BASE table.</p>
  144. </td></tr>
  145. <tr valign=top><td><b>GDEF_table</b></td><td>
  146. <p>A pointer to the GDEF table.</p>
  147. </td></tr>
  148. <tr valign=top><td><b>GPOS_table</b></td><td>
  149. <p>A pointer to the GPOS table.</p>
  150. </td></tr>
  151. <tr valign=top><td><b>GSUB_table</b></td><td>
  152. <p>A pointer to the GSUB table.</p>
  153. </td></tr>
  154. <tr valign=top><td><b>JSTF_table</b></td><td>
  155. <p>A pointer to the JSTF table.</p>
  156. </td></tr>
  157. </table>
  158. </td></tr></table>
  159. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>return</b></em></td></tr><tr><td>
  160. <p>FreeType error code. 0&nbsp;means success.</p>
  161. </td></tr></table>
  162. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
  163. <p>This function only works with OpenType fonts, returning an error otherwise.</p>
  164. <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>
  165. </td></tr></table>
  166. </td></tr></table>
  167. <hr width="75%">
  168. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  169. <td width="100%"></td>
  170. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  171.  
  172. <table align=center width="75%"><tr><td>
  173. <h4><a name="FT_OpenType_Free">FT_OpenType_Free</a></h4>
  174. <table align=center width="87%"><tr><td>
  175. Defined in FT_OPENTYPE_VALIDATE_H (freetype/ftotval.h).
  176. </td></tr></table><br>
  177. <table align=center width="87%"><tr bgcolor="#D6E8FF"><td><pre>
  178.  
  179.   FT_EXPORT( <span class="keyword">void</span> )
  180.   <b>FT_OpenType_Free</b>( <a href="ft2-base_interface.html#FT_Face">FT_Face</a>   face,
  181.                     <a href="ft2-basic_types.html#FT_Bytes">FT_Bytes</a>  table );
  182.  
  183. </pre></table><br>
  184. <table align=center width="87%"><tr><td>
  185. <p>Free the buffer allocated by OpenType validator.</p>
  186. </td></tr></table><br>
  187. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>input</b></em></td></tr><tr><td>
  188. <p></p>
  189. <table cellpadding=3 border=0>
  190. <tr valign=top><td><b>face</b></td><td>
  191. <p>A handle to the input face.</p>
  192. </td></tr>
  193. <tr valign=top><td><b>table</b></td><td>
  194. <p>The pointer to the buffer that is allocated by <a href="ft2-ot_validation.html#FT_OpenType_Validate">FT_OpenType_Validate</a>.</p>
  195. </td></tr>
  196. </table>
  197. </td></tr></table>
  198. <table align=center width="87%" cellpadding=5><tr bgcolor="#EEEEFF"><td><em><b>note</b></em></td></tr><tr><td>
  199. <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>
  200. </td></tr></table>
  201. </td></tr></table>
  202. <hr width="75%">
  203. <table align=center width="75%"><tr><td><font size=-2>[<a href="ft2-index.html">Index</a>]</font></td>
  204. <td width="100%"></td>
  205. <td><font size=-2>[<a href="ft2-toc.html">TOC</a>]</font></td></tr></table>
  206.  
  207. </body>
  208. </html>
  209.