Edit
kc3-lang/freetype/src/gxvalid/gxvtrak.c
Branch :
-
Show log
Commit
-
Author :
Werner Lemberg
Date : 2005-09-05 19:31:27
Hash : 99aa14c2
Message : Fixes for `make multi' and using C++ compiler. * gxvalid/gxvcommn.c (gxv_set_length_by_ushort_offset, gxv_set_length_by_ulong_offset, gxv_array_getlimits_byte, gxv_array_getlimits_ushort): Declare with FT_LOCAL_DEF. (gxv_compare_ranges): Make it static. (gxv_LookupTable_fmt0_validate, gxv_LookupTable_fmt2_validate, gxv_LookupTable_fmt4_validate, gxv_LookupTable_fmt6_validate, gxv_LookupTable_fmt8_validate, gxv_LookupTable_validate): Improve trace messages. (gxv_StateArray_validate, gxv_XStateArray_validate): s/class/clazz/. (GXV_STATETABLE_HEADER_SIZE, GXV_STATEHEADER_SIZE, GXV_XSTATETABLE_HEADER_SIZE, GXV_XSTATEHEADER_SIZE): Move to gxvcommn.h. * gxvalid/gxvcommn.h: Add prototypes for gxv_StateTable_subtable_setup, gxv_XStateTable_subtable_setup, gxv_XStateTable_validate, gxv_array_getlimits_byte, gxv_array_getlimits_ushort, gxv_set_length_by_ushort_offset, gxv_set_length_by_ulong_offset, gxv_odtect_add_range, gxv_odtect_validate. (GXV_STATETABLE_HEADER_SIZE, GXV_STATEHEADER_SIZE, GXV_XSTATETABLE_HEADER_SIZE, GXV_XSTATEHEADER_SIZE): Moved from gxvcommn.c. * src/gxvalid/gxvbsln.c (gxv_bsln_LookupValue_validate, gxv_bsln_parts_fmt1_validate): Improve trace messages. * gxvalid/gxvfeat.c: Split off predefined registry stuff to... * gxvalid/gxvfeat.h: New file. * gxvalid/gxvjust.c (gxv_just_wdc_entry_validate): Improve trace message. * gxvalid/gxvkern.c (GXV_kern_Dialect): Add KERN_DIALECT_UNKNOWN. (gxv_kern_subtable_fmt1_valueTable_load, gxv_kern_subtable_fmt1_subtable_setup, gxv_kern_subtable_fmt1_entry_validate): Fix C++ compiler errors. (gxv_kern_coverage_validate): Use KERN_DIALECT_UNKWOWN. Improve trace message. (gxv_kern_validate_generic): Fix C++ compiler error. Improve trace message. (gxv_kern_validate_classic): Fix C++ compiler error. * gxvalid/gxvmort0.c (gxv_mort_subtable_type0_validate): Declare with FT_LOCAL_DEF. * gxvalid/gxvmort1.c (gxv_mort_subtable_type1_substitutionTable_load, gxv_mort_subtable_type1_subtable_setup): Fix C++ compiler errors. (gxv_mort_subtable_type1_substTable_validate): Improve trace message. (gxv_mort_subtable_type1_validate): Declare with FT_LOCAL_DEF. * gxvalid/gxvmort2.c (gxv_mort_subtable_type2_opttable_load, gxv_mort_subtable_type2_subtable_setup, gxv_mort_subtable_type2_ligActionOffset_validate, gxv_mort_subtable_type2_ligatureTable_validate): Fix C++ compiler errors. (gxv_mort_subtable_type2_validate): Declare with FT_LOCAL_DEF. * gxvalid/gxvmort4.c (gxv_mort_subtable_type4_validate): Declare with FT_LOCAL_DEF. * gxvalid/gxvmort5.c (gxv_mort_subtable_type5_subtable_setup, gxv_mort_subtable_type5_InsertList_validate): Fix C++ compiler errors. (gxv_mort_subtable_type5_validate): Declare with FT_LOCAL_DEF. * gxvalid/gxvmort.c: Include gxvfeat.h. (gxv_mort_featurearray_validate, gxv_mort_coverage_validate): Declare with FT_LOCAL_DEF. (gxv_mort_subtables_validate, gxv_mort_validate): Improve trace messages. * gxvalid/gxvmort.h (gxv_mort_feature_validate): Remove. * gxvalid/gxvmorx0.c (gxv_morx_subtable_type0_validate): Declare with FT_LOCAL_DEF. * gxvalid/gxvmorx1.c (gxv_morx_subtable_type1_substitutionTable_load, gxv_morx_subtable_type1_subtable_setup, gxv_morx_subtable_type1_entry_validate, gxv_morx_subtable_type1_substitutionTable_validate): Fix C++ compiler errors. (gxv_morx_subtable_type1_validate): Declare with FT_LOCAL_DEF. * gxvalid/gxvmorx2.c (gxv_morx_subtable_type2_opttable_load, gxv_morx_subtable_type2_subtable_setup, gxv_morx_subtable_type2_ligActionIndex_validate, gxv_morx_subtable_type2_ligatureTable_validate): Fix C++ compiler errors. (gxv_morx_subtable_type2_validate): Declare with FT_LOCAL_DEF. Fix typo. * gxvalid/gxvmorx4.c (gxv_morx_subtable_type4_validate): Declare with FT_LOCAL_DEF. * gxvalid/gxvmorx5.c (gxv_morx_subtable_type5_insertionGlyph_load, gxv_morx_subtable_type5_subtable_setup): Fix C++ compiler error. (gxv_morx_subtable_type5_validate): Declare with FT_LOCAL_DEF. * gxvalid/gxvmorx.c (gxv_morx_subtables_validate, gxv_morx_validate): Improve trace message. * gxvalid/gxvopbd.c (gxv_opbd_LookupFmt4_transit): Fix compiler warnings. (gxv_opbd_validate): Improve trace message. * gxvalid/gxvprop.c: Decorate constants with `U' and `L' where appropriate. (gxv_prop_zero_advance_validate, gxv_prop_validate): Improve trace message. * gxvalid/gxvtrak.c (gxv_trak_trackTable_validate): Remove unused parameter. Update all callers. (gxv_trak_validate): Improve trace message. * rules.mk (GXV_DRV_H): Add gxvfeat.h.
- src/gxvalid/gxvtrak.c
-
/***************************************************************************/ /* */ /* gxvtrak.c */ /* */ /* TrueTypeGX/AAT trak table validation (body). */ /* */ /* Copyright 2004, 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */ /* 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. */ /* */ /***************************************************************************/ /***************************************************************************/ /* */ /* gxvalid is derived from both gxlayout module and otvalid module. */ /* Development of gxlayout is supported by the Information-technology */ /* Promotion Agency(IPA), Japan. */ /* */ /***************************************************************************/ #include "gxvalid.h" #include "gxvcommn.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_gxvtrak /*************************************************************************/ /*************************************************************************/ /***** *****/ /***** Data and Types *****/ /***** *****/ /*************************************************************************/ /*************************************************************************/ /* * referred track table format specification: * http://developer.apple.com/fonts/TTRefMan/RM06/Chap6trak.html * last update was 1996. * ---------------------------------------------- * [MINIMUM HEADER]: GXV_TRAK_SIZE_MIN * version (fixed: 32bit) = 0x00010000 * format (uint16: 16bit) = 0 is only defined (1996) * horizOffset (uint16: 16bit) * vertOffset (uint16: 16bit) * reserved (uint16: 16bit) = 0 * ---------------------------------------------- * [VARIABLE BODY]: * horizData * header ( 2 + 2 + 4 * trackTable + nTracks * ( 4 + 2 + 2 ) * sizeTable + nSizes * 4 ) * ---------------------------------------------- * vertData * header ( 2 + 2 + 4 * trackTable + nTracks * ( 4 + 2 + 2 ) * sizeTable + nSizes * 4 ) * ---------------------------------------------- */ typedef struct GXV_trak_DataRec_ { FT_UShort trackValueOffset_min; FT_UShort trackValueOffset_max; } GXV_trak_DataRec, *GXV_trak_Data; #define GXV_TRAK_DATA( FIELD ) GXV_TABLE_DATA( trak, FIELD ) /*************************************************************************/ /*************************************************************************/ /***** *****/ /***** UTILITY FUNCTIONS *****/ /***** *****/ /*************************************************************************/ /*************************************************************************/ static void gxv_trak_trackTable_validate( FT_Bytes table, FT_Bytes limit, FT_UShort nTracks, GXV_Validator valid ) { FT_Bytes p = table; FT_Fixed track; FT_UShort nameIndex; FT_UShort offset; FT_UShort i; GXV_NAME_ENTER( "trackTable" ); GXV_TRAK_DATA( trackValueOffset_min ) = 0xFFFFU; GXV_TRAK_DATA( trackValueOffset_max ) = 0x0000; for ( i = 0; i < nTracks; i ++ ) { GXV_LIMIT_CHECK( 4 + 2 + 2 ); track = FT_NEXT_LONG( p ); nameIndex = FT_NEXT_USHORT( p ); offset = FT_NEXT_USHORT( p ); if ( offset < GXV_TRAK_DATA( trackValueOffset_min ) ) GXV_TRAK_DATA( trackValueOffset_min ) = offset; if ( offset > GXV_TRAK_DATA( trackValueOffset_max ) ) GXV_TRAK_DATA( trackValueOffset_max ) = offset; gxv_sfntName_validate( nameIndex, 256, 32767, valid ); } valid->subtable_length = p - table; GXV_EXIT; } static void gxv_trak_trackData_validate( FT_Bytes table, FT_Bytes limit, GXV_Validator valid ) { FT_Bytes p = table; FT_UShort nTracks; FT_UShort nSizes; FT_ULong sizeTableOffset; GXV_ODTECT( 4, odtect ); GXV_ODTECT_INIT( odtect ); GXV_NAME_ENTER( "trackData" ); /* read the header of trackData */ GXV_LIMIT_CHECK( 2 + 2 + 4 ); nTracks = FT_NEXT_USHORT( p ); nSizes = FT_NEXT_USHORT( p ); sizeTableOffset = FT_NEXT_ULONG( p ); gxv_odtect_add_range( table, p - table, "trackData header", odtect ); /* validate trackTable */ gxv_trak_trackTable_validate( p, limit, nTracks, valid ); gxv_odtect_add_range( p, valid->subtable_length, "trackTable", odtect ); /* sizeTable is array of FT_Fixed, don't check contents */ p = valid->root->base + sizeTableOffset; GXV_LIMIT_CHECK( nSizes * 4 ); gxv_odtect_add_range( p, nSizes * 4, "sizeTable", odtect ); /* validate trackValueOffet */ p = valid->root->base + GXV_TRAK_DATA( trackValueOffset_min ); if ( limit - p < nTracks * nSizes * 2 ) GXV_TRACE(( "too short trackValue array\n" )); p = valid->root->base + GXV_TRAK_DATA( trackValueOffset_max ); GXV_LIMIT_CHECK( nSizes * 2 ); gxv_odtect_add_range( valid->root->base + GXV_TRAK_DATA( trackValueOffset_min ), GXV_TRAK_DATA( trackValueOffset_max ) - GXV_TRAK_DATA( trackValueOffset_min ) + nSizes * 2, "trackValue array", odtect ); gxv_odtect_validate( odtect, valid ); GXV_EXIT; } /*************************************************************************/ /*************************************************************************/ /***** *****/ /***** trak TABLE *****/ /***** *****/ /*************************************************************************/ /*************************************************************************/ FT_LOCAL_DEF( void ) gxv_trak_validate( FT_Bytes table, FT_Face face, FT_Validator ftvalid ) { FT_Bytes p = table; FT_Bytes limit = 0; FT_UInt table_size; GXV_ValidatorRec validrec; GXV_Validator valid = &validrec; GXV_trak_DataRec trakrec; GXV_trak_Data trak = &trakrec; FT_ULong version; FT_UShort format; FT_UShort horizOffset; FT_UShort vertOffset; FT_UShort reserved; GXV_ODTECT( 3, odtect ); GXV_ODTECT_INIT( odtect ); valid->root = ftvalid; valid->table_data = trak; valid->face = face; limit = valid->root->limit; table_size = limit - table; FT_TRACE3(( "validating `trak' table\n" )); GXV_INIT; GXV_LIMIT_CHECK( 4 + 2 + 2 + 2 + 2 ); version = FT_NEXT_ULONG( p ); format = FT_NEXT_USHORT( p ); horizOffset = FT_NEXT_USHORT( p ); vertOffset = FT_NEXT_USHORT( p ); reserved = FT_NEXT_USHORT( p ); GXV_TRACE(( " (version = 0x%08x)\n", version )); GXV_TRACE(( " (format = 0x%04x)\n", format )); GXV_TRACE(( " (horizOffset = 0x%04x)\n", horizOffset )); GXV_TRACE(( " (vertOffset = 0x%04x)\n", vertOffset )); GXV_TRACE(( " (reserved = 0x%04x)\n", reserved )); /* Version 1.0 (always:1996) */ if ( version != 0x00010000UL ) FT_INVALID_FORMAT; /* format 0 (always:1996) */ if ( format != 0x0000 ) FT_INVALID_FORMAT; GXV_32BIT_ALIGNMENT_VALIDATE( horizOffset ); GXV_32BIT_ALIGNMENT_VALIDATE( vertOffset ); /* Reserved Fixed Value (always) */ if ( reserved != 0x0000 ) FT_INVALID_DATA; /* validate trackData */ if ( 0 < horizOffset ) { gxv_trak_trackData_validate( table + horizOffset, limit, valid ); gxv_odtect_add_range( table + horizOffset, valid->subtable_length, "horizJustData", odtect ); } if ( 0 < vertOffset ) { gxv_trak_trackData_validate( table + vertOffset, limit, valid ); gxv_odtect_add_range( table + vertOffset, valid->subtable_length, "vertJustData", odtect ); } gxv_odtect_validate( odtect, valid ); FT_TRACE4(( "\n" )); } /* END */