ref: af4a4fdd30ee57bfa4e0279e276af0d71ff09f2d
dir: /src/otlayout/otlcommn.h/
/***************************************************************************/
/* */
/* otlcommn.h */
/* */
/* OpenType layout support, common tables (specification). */
/* */
/* Copyright 2002, 2004 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_LOCAL( void )
otl_coverage_validate( OTL_Bytes table,
OTL_Validator valid );
/* return first covered glyph */
OTL_LOCAL( OTL_UInt )
otl_coverage_get_first( OTL_Bytes table );
/* return last covered glyph */
OTL_LOCAL( OTL_UInt )
otl_coverage_get_last( OTL_Bytes table );
/* return number of covered glyphs */
OTL_LOCAL( OTL_UInt )
otl_coverage_get_count( OTL_Bytes table );
#if 0
/* Return the coverage index corresponding to a glyph glyph index. */
/* Return -1 if the glyph isn't covered. */
OTL_LOCAL( OTL_Long )
otl_coverage_get_index( OTL_Bytes table,
OTL_UInt glyph_index );
#endif
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** CLASS DEFINITION TABLE *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* validate class definition table */
OTL_LOCAL( void )
otl_class_definition_validate( OTL_Bytes table,
OTL_Validator valid );
#if 0
/* return class value for a given glyph index */
OTL_LOCAL( OTL_UInt )
otl_class_definition_get_value( OTL_Bytes table,
OTL_UInt glyph_index );
#endif
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** DEVICE TABLE *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* validate a device table */
OTL_LOCAL( void )
otl_device_table_validate( OTL_Bytes table,
OTL_Validator valid );
#if 0
/* return a device table's first size */
OTL_LOCAL( OTL_UInt )
otl_device_table_get_start( OTL_Bytes table );
#endif
#if 0
/* return a device table's last size */
OTL_LOCAL( OTL_UInt )
otl_device_table_get_end( OTL_Bytes table );
#endif
#if 0
/* return pixel adjustment for a given size */
OTL_LOCAL( OTL_Int )
otl_device_table_get_delta( OTL_Bytes table,
OTL_UInt size );
#endif
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** LOOKUPS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
OTL_LOCAL( void )
otl_lookup_validate( OTL_Bytes table,
OTL_UInt type_count,
OTL_ValidateFunc* type_funcs,
OTL_UInt lookup_count,
OTL_UInt glyph_count,
OTL_Validator valid );
#if 0
/* return number of sub-tables in a lookup */
OTL_LOCAL( OTL_UInt )
otl_lookup_get_count( OTL_Bytes table );
#endif
#if 0
/* return lookup sub-table */
OTL_LOCAL( OTL_Bytes )
otl_lookup_get_table( OTL_Bytes table,
OTL_UInt idx );
#endif
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** LOOKUP LISTS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* validate lookup list */
OTL_LOCAL( void )
otl_lookup_list_validate( OTL_Bytes table,
OTL_UInt type_count,
OTL_ValidateFunc* type_funcs,
OTL_UInt glyph_count,
OTL_Validator valid );
/* return number of lookups in list */
OTL_LOCAL( OTL_UInt )
otl_lookup_list_get_count( OTL_Bytes table );
#if 0
/* return a given lookup from a list */
OTL_LOCAL( OTL_Bytes )
otl_lookup_list_get_lookup( OTL_Bytes table,
OTL_UInt idx );
#endif
#if 0
/* return lookup sub-table from a list */
OTL_LOCAL( OTL_Bytes )
otl_lookup_list_get_table( OTL_Bytes table,
OTL_UInt lookup_index,
OTL_UInt table_index );
#endif
#if 0
/* iterate over lookup list */
OTL_LOCAL( void )
otl_lookup_list_foreach( OTL_Bytes table,
OTL_ForeachFunc func,
OTL_Pointer func_data );
#endif
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** FEATURES *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* validate feature table */
OTL_LOCAL( void )
otl_feature_validate( OTL_Bytes table,
OTL_UInt lookup_count,
OTL_Validator valid );
#if 0
/* return feature's lookup count */
OTL_LOCAL( OTL_UInt )
otl_feature_get_count( OTL_Bytes table );
#endif
#if 0
/* get several lookups indices from a feature. returns the number of */
/* lookups grabbed */
OTL_LOCAL( OTL_UInt )
otl_feature_get_lookups( OTL_Bytes table,
OTL_UInt start,
OTL_UInt count,
OTL_UInt *lookups );
#endif
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** FEATURE LIST *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* validate a feature list */
/* lookups must already be validated */
OTL_LOCAL( void )
otl_feature_list_validate( OTL_Bytes table,
OTL_Bytes lookups,
OTL_Validator valid );
/* return number of features in list */
OTL_LOCAL( OTL_UInt )
otl_feature_list_get_count( OTL_Bytes table );
#if 0
/* return a given feature from a list */
OTL_LOCAL( OTL_Bytes )
otl_feature_list_get_feature( OTL_Bytes table,
OTL_UInt idx );
#endif
#if 0
/* iterate over all features in a list */
OTL_LOCAL( void )
otl_feature_list_foreach( OTL_Bytes table,
OTL_ForeachFunc func,
OTL_Pointer func_data );
#endif
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** LANGUAGE SYSTEM *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
OTL_LOCAL( void )
otl_lang_validate( OTL_Bytes table,
OTL_UInt feature_count,
OTL_Validator valid );
#if 0
OTL_LOCAL( OTL_UInt )
otl_lang_get_req_feature( OTL_Bytes table );
#endif
#if 0
OTL_LOCAL( OTL_UInt )
otl_lang_get_count( OTL_Bytes table );
#endif
#if 0
OTL_LOCAL( OTL_UInt )
otl_lang_get_features( OTL_Bytes table,
OTL_UInt start,
OTL_UInt count,
OTL_UInt *features );
#endif
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** SCRIPTS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
OTL_LOCAL( void )
otl_script_validate( OTL_Bytes table,
OTL_UInt feature_count,
OTL_Validator valid );
/* validate a script list */
/* features must already be validated */
OTL_LOCAL( void )
otl_script_list_validate( OTL_Bytes table,
OTL_Bytes features,
OTL_Validator valid );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** UTILITY FUNCTIONS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
OTL_LOCAL( OTL_UInt )
otl_gsubgpos_get_lookup_count( OTL_Bytes table );
/* */
OTL_END_HEADER
#endif /* __OTLCOMMN_H__ */
/* END */