20060303a

1 files changed, 277 insertions, 0 deletions

diff --git a/libfreetype/otlcommn.h b/libfreetype/otlcommn.h
new file mode 100644
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+/***************************************************************************/
+/*                                                                         */
+/*  otlcommn.h                                                             */
+/*                                                                         */
+/*    OpenType layout support, common tables (specification).              */
+/*                                                                         */
+/*  Copyright 2002 by                                                      */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __OTLCOMMN_H__
+#define __OTLCOMMN_H__
+
+#include "otlayout.h"
+
+OTL_BEGIN_HEADER
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                       COVERAGE TABLE                          *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* validate coverage table */
+  OTL_LOCALDEF( void )
+  otl_coverage_validate( OTL_Bytes      base,
+                         OTL_Validator  valid );
+
+  /* return number of covered glyphs */
+  OTL_LOCALDEF( OTL_UInt )
+  otl_coverage_get_count( OTL_Bytes  base );
+
+  /* Return the coverage index corresponding to a glyph glyph index. */
+  /* Return -1 if the glyph isn't covered.                           */
+  OTL_LOCALDEF( OTL_Int )
+  otl_coverage_get_index( OTL_Bytes  base,
+                          OTL_UInt   glyph_index );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                  CLASS DEFINITION TABLE                       *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* validate class definition table */
+  OTL_LOCALDEF( void )
+  otl_class_definition_validate( OTL_Bytes      table,
+                                 OTL_Validator  valid );
+
+  /* return class value for a given glyph index */
+  OTL_LOCALDEF( OTL_UInt )
+  otl_class_definition_get_value( OTL_Bytes  table,
+                                  OTL_UInt   glyph_index );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                      DEVICE TABLE                             *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* validate a device table */
+  OTL_LOCALDEF( void )
+  otl_device_table_validate( OTL_Bytes      table,
+                             OTL_Validator  valid );
+
+  /* return a device table's first size */
+  OTL_LOCALDEF( OTL_UInt )
+  otl_device_table_get_start( OTL_Bytes  table );
+
+  /* return a device table's last size */
+  OTL_LOCALDEF( OTL_UInt )
+  otl_device_table_get_end( OTL_Bytes  table );
+
+  /* return pixel adjustment for a given size */
+  OTL_LOCALDEF( OTL_Int )
+  otl_device_table_get_delta( OTL_Bytes  table,
+                              OTL_UInt   size );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                           LOOKUPS                             *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* validate lookup table */
+  OTL_LOCALDEF( void )
+  otl_lookup_validate( OTL_Bytes      table,
+                       OTL_Validator  valid );
+
+  /* return number of sub-tables in a lookup */
+  OTL_LOCALDEF( OTL_UInt )
+  otl_lookup_get_count( OTL_Bytes  table );
+
+
+  /* return lookup sub-table */
+  OTL_LOCALDEF( OTL_Bytes )
+  otl_lookup_get_table( OTL_Bytes  table,
+                        OTL_UInt   idx );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                      LOOKUP LISTS                             *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* validate lookup list */
+  OTL_LOCALDEF( void )
+  otl_lookup_list_validate( OTL_Bytes      table,
+                            OTL_Validator  valid );
+
+  /* return number of lookups in list */
+  OTL_LOCALDEF( OTL_UInt )
+  otl_lookup_list_get_count( OTL_Bytes  table );
+
+  /* return a given lookup from a list */
+  OTL_LOCALDEF( OTL_Bytes )
+  otl_lookup_list_get_lookup( OTL_Bytes  table,
+                              OTL_UInt   idx );
+
+  /* return lookup sub-table from a list */
+  OTL_LOCALDEF( OTL_Bytes )
+  otl_lookup_list_get_table( OTL_Bytes  table,
+                             OTL_UInt   lookup_index,
+                             OTL_UInt   table_index );
+
+  /* iterate over lookup list */
+  OTL_LOCALDEF( void )
+  otl_lookup_list_foreach( OTL_Bytes        table,
+                           OTL_ForeachFunc  func,
+                           OTL_Pointer      func_data );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                        FEATURES                               *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* validate feature table */
+  OTL_LOCALDEF( void )
+  otl_feature_validate( OTL_Bytes      table,
+                        OTL_Validator  valid );
+
+  /* return feature's lookup count */
+  OTL_LOCALDEF( OTL_UInt )
+  otl_feature_get_count( OTL_Bytes  table );
+
+  /* get several lookups indices from a feature. returns the number of */
+  /* lookups grabbed                                                   */
+  OTL_LOCALDEF( OTL_UInt )
+  otl_feature_get_lookups( OTL_Bytes  table,
+                           OTL_UInt   start,
+                           OTL_UInt   count,
+                           OTL_UInt  *lookups );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                        FEATURE LIST                           *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* validate a feature list */
+  OTL_LOCALDEF( void )
+  otl_feature_list_validate( OTL_Bytes      table,
+                             OTL_Validator  valid );
+
+  /* return number of features in list */
+  OTL_LOCALDEF( OTL_UInt )
+  otl_feature_list_get_count( OTL_Bytes  table );
+
+
+  /* return a given feature from a list */
+  OTL_LOCALDEF( OTL_Bytes )
+  otl_feature_list_get_feature( OTL_Bytes  table,
+                                OTL_UInt   idx );
+
+  /* iterate over all features in a list */
+  OTL_LOCALDEF( void )
+  otl_feature_list_foreach( OTL_Bytes        table,
+                            OTL_ForeachFunc  func,
+                            OTL_Pointer      func_data );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                       LANGUAGE SYSTEM                         *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  OTL_LOCAL( void )
+  otl_lang_validate( OTL_Bytes      table,
+                     OTL_Validator  valid );
+
+
+  OTL_LOCAL( OTL_UInt )
+  otl_lang_get_req_feature( OTL_Bytes  table );
+
+
+  OTL_LOCAL( OTL_UInt )
+  otl_lang_get_count( OTL_Bytes  table );
+
+
+  OTL_LOCAL( OTL_UInt )
+  otl_lang_get_features( OTL_Bytes  table,
+                         OTL_UInt   start,
+                         OTL_UInt   count,
+                         OTL_UInt  *features );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                           SCRIPTS                             *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  OTL_LOCAL( void )
+  otl_script_list_validate( OTL_Bytes          list,
+                            OTL_Validator      valid );
+
+  OTL_LOCAL( OTL_Bytes )
+  otl_script_list_get_script( OTL_Bytes  table );
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                         LOOKUP LISTS                          *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  OTL_LOCAL( void )
+  otl_lookup_list_validate( OTL_Bytes          list,
+                            OTL_UInt           type_count,
+                            OTL_ValidateFunc*  type_funcs,
+                            OTL_Validator      valid );
+
+ /* */
+
+OTL_END_HEADER
+
+#endif /* __OTLCOMMN_H__ */
+
+
+/* END */