46b5c4ac31
otl_gpos_lookup2_validate, otl_gpos_lookup3_validate, otl_gpos_lookup4_validate, otl_gpos_lookup5_validate, otl_gpos_lookup6_validate, otl_gpos_lookup9_validate, otl_gpos_validate): Update function arguments. (otl_gpos_lookup7_validate, otl_gpos_lookup8_validate): Update function arguments. Handle NULL offsets correctly. Check sequence and lookup indices for format 3. (otl_pos_rule_validate, otl_chain_pos_rule_validate): Add argument to pass lookup count. Check sequence and glyph indices. (otl_gpos_subtable_validate): Update function arguments. Update callers. * src/otlayout/otlgpos.h: Updated. * src/otlayout/otlgsub.c (otl_gsub_lookup1_validate, otl_gsub_lookup3_validate, otl_gsub_lookup8_validate): Update function arguments. Add glyph index checks. (otl_sequence_validate, otl_alternate_set_validate, otl_ligature_validate): Add argument to pass glyph count. Update callers. Add glyph index check. (otl_gsub_lookup2_validate, otl_gsub_lookup4_validate): Update function arguments. (otl_ligature_set_validate): Add argument to pass glyph count. Update caller. (otl_sub_class_rule_validate, otl_sub_class_rule_set_validate): Removed. (otl_sub_rule_validate, otl_chain_sub_rule_validate): Add argument to pass lookup count. Update callers. Add lookup index check. (otl_sub_rule_set_validate, otl_chain_sub_rule_set_validate): Add argument to pass lookup count. Update callers. (otl_gsub_lookup5_validate): Update function arguments. Handle NULL offsets correctly. Don't call otl_sub_class_rule_set_validate but otl_sub_rule_set_validate. Check sequence and lookup indices for format 3. (otl_gsub_lookup6_validate): Update function arguments. Handle NULL offsets correctly. Check sequence and lookup indices for format 3. (otl_gsub_lookup7_validate, otl_gsub_validate): Update function arguments. * src/otlayout/otlgsub.h: Updated. * src/otlayout/otlbase.c (otl_base_validate): Handle NULL offsets correctly. * src/otlayout/otlcommn.c (otl_class_definition_validate): Fix compiler warning. (otl_coverage_get_first, otl_coverage_get_last): New functions. (otl_lookup_validate): Add arguments to pass lookup and glyph counts. Update callers. (otl_lookup_list_validate): Add argument to pass glyph count. Update callers. * src/otlayout/otlcommn.h: Updated. * src/otlayout/otljstf.c (otl_jstf_extender_validate, otl_jstf_max_validate, otl_jstf_script_validate, otl_jstf_priority_validate, otl_jstf_lang_validate): Add parameter to validate glyph indices. Update callers. (otl_jstf_validate): Add parameter which specifies number of glyphs in font. * src/otlayout/otljstf.h: Updated.
327 lines
13 KiB
C
327 lines
13 KiB
C
/***************************************************************************/
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/* */
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/* otlcommn.h */
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/* */
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/* OpenType layout support, common tables (specification). */
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/* */
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/* Copyright 2002, 2004 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#ifndef __OTLCOMMN_H__
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#define __OTLCOMMN_H__
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#include "otlayout.h"
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OTL_BEGIN_HEADER
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** COVERAGE TABLE *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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/* validate coverage table */
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OTL_LOCAL( void )
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otl_coverage_validate( OTL_Bytes table,
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OTL_Validator valid );
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/* return first covered glyph */
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OTL_LOCAL( OTL_UInt )
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otl_coverage_get_first( OTL_Bytes table );
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/* return last covered glyph */
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OTL_LOCAL( OTL_UInt )
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otl_coverage_get_last( OTL_Bytes table );
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/* return number of covered glyphs */
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OTL_LOCAL( OTL_UInt )
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otl_coverage_get_count( OTL_Bytes table );
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#if 0
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/* Return the coverage index corresponding to a glyph glyph index. */
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/* Return -1 if the glyph isn't covered. */
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OTL_LOCAL( OTL_Long )
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otl_coverage_get_index( OTL_Bytes table,
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OTL_UInt glyph_index );
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#endif
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** CLASS DEFINITION TABLE *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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/* validate class definition table */
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OTL_LOCAL( void )
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otl_class_definition_validate( OTL_Bytes table,
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OTL_Validator valid );
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#if 0
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/* return class value for a given glyph index */
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OTL_LOCAL( OTL_UInt )
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otl_class_definition_get_value( OTL_Bytes table,
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OTL_UInt glyph_index );
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#endif
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** DEVICE TABLE *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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/* validate a device table */
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OTL_LOCAL( void )
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otl_device_table_validate( OTL_Bytes table,
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OTL_Validator valid );
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#if 0
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/* return a device table's first size */
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OTL_LOCAL( OTL_UInt )
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otl_device_table_get_start( OTL_Bytes table );
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#endif
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#if 0
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/* return a device table's last size */
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OTL_LOCAL( OTL_UInt )
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otl_device_table_get_end( OTL_Bytes table );
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#endif
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#if 0
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/* return pixel adjustment for a given size */
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OTL_LOCAL( OTL_Int )
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otl_device_table_get_delta( OTL_Bytes table,
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OTL_UInt size );
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#endif
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** LOOKUPS *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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OTL_LOCAL( void )
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otl_lookup_validate( OTL_Bytes table,
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OTL_UInt type_count,
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OTL_ValidateFunc* type_funcs,
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OTL_UInt lookup_count,
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OTL_UInt glyph_count,
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OTL_Validator valid );
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/* return number of sub-tables in a lookup */
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OTL_LOCAL( OTL_UInt )
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otl_lookup_get_count( OTL_Bytes table );
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#if 0
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/* return lookup sub-table */
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OTL_LOCAL( OTL_Bytes )
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otl_lookup_get_table( OTL_Bytes table,
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OTL_UInt idx );
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#endif
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** LOOKUP LISTS *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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/* validate lookup list */
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OTL_LOCAL( void )
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otl_lookup_list_validate( OTL_Bytes table,
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OTL_UInt type_count,
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OTL_ValidateFunc* type_funcs,
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OTL_UInt glyph_count,
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OTL_Validator valid );
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#if 0
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/* return number of lookups in list */
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OTL_LOCAL( OTL_UInt )
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otl_lookup_list_get_count( OTL_Bytes table );
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#endif
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#if 0
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/* return a given lookup from a list */
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OTL_LOCAL( OTL_Bytes )
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otl_lookup_list_get_lookup( OTL_Bytes table,
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OTL_UInt idx );
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#endif
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#if 0
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/* return lookup sub-table from a list */
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OTL_LOCAL( OTL_Bytes )
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otl_lookup_list_get_table( OTL_Bytes table,
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OTL_UInt lookup_index,
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OTL_UInt table_index );
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#endif
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#if 0
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/* iterate over lookup list */
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OTL_LOCAL( void )
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otl_lookup_list_foreach( OTL_Bytes table,
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OTL_ForeachFunc func,
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OTL_Pointer func_data );
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#endif
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** FEATURES *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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/* validate feature table */
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OTL_LOCAL( void )
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otl_feature_validate( OTL_Bytes table,
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OTL_UInt lookup_count,
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OTL_Validator valid );
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/* return feature's lookup count */
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OTL_LOCAL( OTL_UInt )
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otl_feature_get_count( OTL_Bytes table );
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#if 0
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/* get several lookups indices from a feature. returns the number of */
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/* lookups grabbed */
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OTL_LOCAL( OTL_UInt )
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otl_feature_get_lookups( OTL_Bytes table,
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OTL_UInt start,
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OTL_UInt count,
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OTL_UInt *lookups );
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#endif
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** FEATURE LIST *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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/* validate a feature list */
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/* lookups must already be validated */
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OTL_LOCAL( void )
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otl_feature_list_validate( OTL_Bytes table,
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OTL_Bytes lookups,
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OTL_Validator valid );
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#if 0
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/* return number of features in list */
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OTL_LOCAL( OTL_UInt )
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otl_feature_list_get_count( OTL_Bytes table );
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#endif
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#if 0
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/* return a given feature from a list */
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OTL_LOCAL( OTL_Bytes )
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otl_feature_list_get_feature( OTL_Bytes table,
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OTL_UInt idx );
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#endif
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#if 0
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/* iterate over all features in a list */
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OTL_LOCAL( void )
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otl_feature_list_foreach( OTL_Bytes table,
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OTL_ForeachFunc func,
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OTL_Pointer func_data );
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#endif
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** LANGUAGE SYSTEM *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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OTL_LOCAL( void )
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otl_lang_validate( OTL_Bytes table,
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OTL_UInt feature_count,
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OTL_Validator valid );
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#if 0
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OTL_LOCAL( OTL_UInt )
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otl_lang_get_req_feature( OTL_Bytes table );
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#endif
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#if 0
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OTL_LOCAL( OTL_UInt )
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otl_lang_get_count( OTL_Bytes table );
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#endif
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#if 0
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OTL_LOCAL( OTL_UInt )
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otl_lang_get_features( OTL_Bytes table,
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OTL_UInt start,
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OTL_UInt count,
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OTL_UInt *features );
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#endif
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** SCRIPTS *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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OTL_LOCAL( void )
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otl_script_validate( OTL_Bytes table,
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OTL_UInt feature_count,
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OTL_Validator valid );
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/* validate a script list */
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/* features must already be validated */
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OTL_LOCAL( void )
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otl_script_list_validate( OTL_Bytes table,
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OTL_Bytes features,
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OTL_Validator valid );
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** UTILITY FUNCTIONS *****/
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/***** *****/
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/*************************************************************************/
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/*************************************************************************/
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OTL_LOCAL( OTL_UInt )
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otl_gsubgpos_get_lookup_count( OTL_Bytes table );
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/* */
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OTL_END_HEADER
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#endif /* __OTLCOMMN_H__ */
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/* END */
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