| /***************************************************************************/ |
| /* */ |
| /* 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 ); |
| |
| /* */ |
| |
| OTL_END_HEADER |
| |
| #endif /* __OTLCOMMN_H__ */ |
| |
| |
| /* END */ |
