diff options
Diffstat (limited to 'src/otvalid/otvjstf.c')
| -rw-r--r-- | src/otvalid/otvjstf.c | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/src/otvalid/otvjstf.c b/src/otvalid/otvjstf.c deleted file mode 100644 index 80b8dd6..0000000 --- a/src/otvalid/otvjstf.c +++ /dev/null @@ -1,258 +0,0 @@ -/***************************************************************************/ -/* */ -/* otvjstf.c */ -/* */ -/* OpenType JSTF table validation (body). */ -/* */ -/* Copyright 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. */ -/* */ -/***************************************************************************/ - - -#include "otvalid.h" -#include "otvcommn.h" -#include "otvgpos.h" - - - /*************************************************************************/ - /* */ - /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ - /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ - /* messages during execution. */ - /* */ -#undef FT_COMPONENT -#define FT_COMPONENT trace_otvjstf - - -#define JstfPriorityFunc otv_JstfPriority_validate -#define JstfLookupFunc otv_GPOS_subtable_validate - - /* uses valid->extra1 (GSUB lookup count) */ - /* uses valid->extra2 (GPOS lookup count) */ - /* sets valid->extra1 (counter) */ - - static void - otv_JstfPriority_validate( FT_Bytes table, - OTV_Validator valid ) - { - FT_Bytes p = table; - FT_UInt table_size; - FT_UInt gsub_lookup_count, gpos_lookup_count; - - OTV_OPTIONAL_TABLE( ShrinkageEnableGSUB ); - OTV_OPTIONAL_TABLE( ShrinkageDisableGSUB ); - OTV_OPTIONAL_TABLE( ShrinkageEnableGPOS ); - OTV_OPTIONAL_TABLE( ShrinkageDisableGPOS ); - OTV_OPTIONAL_TABLE( ExtensionEnableGSUB ); - OTV_OPTIONAL_TABLE( ExtensionDisableGSUB ); - OTV_OPTIONAL_TABLE( ExtensionEnableGPOS ); - OTV_OPTIONAL_TABLE( ExtensionDisableGPOS ); - OTV_OPTIONAL_TABLE( ShrinkageJstfMax ); - OTV_OPTIONAL_TABLE( ExtensionJstfMax ); - - - OTV_ENTER; - OTV_TRACE(( "JstfPriority table\n" )); - - OTV_LIMIT_CHECK( 20 ); - - gsub_lookup_count = valid->extra1; - gpos_lookup_count = valid->extra2; - - table_size = 20; - - valid->extra1 = gsub_lookup_count; - - OTV_OPTIONAL_OFFSET( ShrinkageEnableGSUB ); - OTV_SIZE_CHECK( ShrinkageEnableGSUB ); - if ( ShrinkageEnableGSUB ) - otv_x_ux( table + ShrinkageEnableGSUB, valid ); - - OTV_OPTIONAL_OFFSET( ShrinkageDisableGSUB ); - OTV_SIZE_CHECK( ShrinkageDisableGSUB ); - if ( ShrinkageDisableGSUB ) - otv_x_ux( table + ShrinkageDisableGSUB, valid ); - - valid->extra1 = gpos_lookup_count; - - OTV_OPTIONAL_OFFSET( ShrinkageEnableGPOS ); - OTV_SIZE_CHECK( ShrinkageEnableGPOS ); - if ( ShrinkageEnableGPOS ) - otv_x_ux( table + ShrinkageEnableGPOS, valid ); - - OTV_OPTIONAL_OFFSET( ShrinkageDisableGPOS ); - OTV_SIZE_CHECK( ShrinkageDisableGPOS ); - if ( ShrinkageDisableGPOS ) - otv_x_ux( table + ShrinkageDisableGPOS, valid ); - - OTV_OPTIONAL_OFFSET( ShrinkageJstfMax ); - OTV_SIZE_CHECK( ShrinkageJstfMax ); - if ( ShrinkageJstfMax ) - { - /* XXX: check lookup types? */ - OTV_NEST2( JstfMax, JstfLookup ); - OTV_RUN( table + ShrinkageJstfMax, valid ); - } - - valid->extra1 = gsub_lookup_count; - - OTV_OPTIONAL_OFFSET( ExtensionEnableGSUB ); - OTV_SIZE_CHECK( ExtensionEnableGSUB ); - if ( ExtensionEnableGSUB ) - otv_x_ux( table + ExtensionEnableGSUB, valid ); - - OTV_OPTIONAL_OFFSET( ExtensionDisableGSUB ); - OTV_SIZE_CHECK( ExtensionDisableGSUB ); - if ( ExtensionDisableGSUB ) - otv_x_ux( table + ExtensionDisableGSUB, valid ); - - valid->extra1 = gpos_lookup_count; - - OTV_OPTIONAL_OFFSET( ExtensionEnableGPOS ); - OTV_SIZE_CHECK( ExtensionEnableGPOS ); - if ( ExtensionEnableGPOS ) - otv_x_ux( table + ExtensionEnableGPOS, valid ); - - OTV_OPTIONAL_OFFSET( ExtensionDisableGPOS ); - OTV_SIZE_CHECK( ExtensionDisableGPOS ); - if ( ExtensionDisableGPOS ) - otv_x_ux( table + ExtensionDisableGPOS, valid ); - - OTV_OPTIONAL_OFFSET( ExtensionJstfMax ); - OTV_SIZE_CHECK( ExtensionJstfMax ); - if ( ExtensionJstfMax ) - { - /* XXX: check lookup types? */ - OTV_NEST2( JstfMax, JstfLookup ); - OTV_RUN( table + ExtensionJstfMax, valid ); - } - - valid->extra1 = gsub_lookup_count; - valid->extra2 = gpos_lookup_count; - - OTV_EXIT; - } - - - /* sets valid->extra (glyph count) */ - /* sets valid->func1 (otv_JstfPriority_validate) */ - - static void - otv_JstfScript_validate( FT_Bytes table, - OTV_Validator valid ) - { - FT_Bytes p = table; - FT_UInt table_size; - FT_UInt JstfLangSysCount; - - OTV_OPTIONAL_TABLE( ExtGlyph ); - OTV_OPTIONAL_TABLE( DefJstfLangSys ); - - - OTV_NAME_ENTER( "JstfScript" ); - - OTV_LIMIT_CHECK( 6 ); - OTV_OPTIONAL_OFFSET( ExtGlyph ); - OTV_OPTIONAL_OFFSET( DefJstfLangSys ); - JstfLangSysCount = FT_NEXT_USHORT( p ); - - OTV_TRACE(( " (JstfLangSysCount = %d)\n", JstfLangSysCount )); - - table_size = JstfLangSysCount * 6 + 6; - - OTV_SIZE_CHECK( ExtGlyph ); - if ( ExtGlyph ) - { - valid->extra1 = valid->glyph_count; - OTV_NEST1( ExtenderGlyph ); - OTV_RUN( table + ExtGlyph, valid ); - } - - OTV_SIZE_CHECK( DefJstfLangSys ); - if ( DefJstfLangSys ) - { - OTV_NEST2( JstfLangSys, JstfPriority ); - OTV_RUN( table + DefJstfLangSys, valid ); - } - - OTV_LIMIT_CHECK( 6 * JstfLangSysCount ); - - /* JstfLangSysRecord */ - OTV_NEST2( JstfLangSys, JstfPriority ); - for ( ; JstfLangSysCount > 0; JstfLangSysCount-- ) - { - p += 4; /* skip JstfLangSysTag */ - - OTV_RUN( table + FT_NEXT_USHORT( p ), valid ); - } - - OTV_EXIT; - } - - - /* sets valid->extra1 (GSUB lookup count) */ - /* sets valid->extra2 (GPOS lookup count) */ - /* sets valid->glyph_count */ - - FT_LOCAL_DEF( void ) - otv_JSTF_validate( FT_Bytes table, - FT_Bytes gsub, - FT_Bytes gpos, - FT_UInt glyph_count, - FT_Validator ftvalid ) - { - OTV_ValidatorRec validrec; - OTV_Validator valid = &validrec; - FT_Bytes p = table; - FT_UInt JstfScriptCount; - - - valid->root = ftvalid; - - FT_TRACE3(( "validating JSTF table\n" )); - OTV_INIT; - - OTV_LIMIT_CHECK( 6 ); - - if ( FT_NEXT_ULONG( p ) != 0x10000UL ) /* Version */ - FT_INVALID_DATA; - - JstfScriptCount = FT_NEXT_USHORT( p ); - - FT_TRACE3(( " (JstfScriptCount = %d)\n", JstfScriptCount )); - - OTV_LIMIT_CHECK( JstfScriptCount * 6 ); - - if ( gsub ) - valid->extra1 = otv_GSUBGPOS_get_Lookup_count( gsub ); - else - valid->extra1 = 0; - - if ( gpos ) - valid->extra2 = otv_GSUBGPOS_get_Lookup_count( gpos ); - else - valid->extra2 = 0; - - valid->glyph_count = glyph_count; - - /* JstfScriptRecord */ - for ( ; JstfScriptCount > 0; JstfScriptCount-- ) - { - p += 4; /* skip JstfScriptTag */ - - /* JstfScript */ - otv_JstfScript_validate( table + FT_NEXT_USHORT( p ), valid ); - } - - FT_TRACE4(( "\n" )); - } - - -/* END */ |