--- a/misc/libfreetype/src/otvalid/otvjstf.c Tue Jul 16 11:14:27 2013 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,258 +0,0 @@
-/***************************************************************************/
-/* */
-/* otvjstf.c */
-/* */
-/* OpenType JSTF table validation (body). */
-/* */
-/* Copyright 2004, 2007 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_FORMAT;
-
- 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 */