diff -r a501f5ec7b34 -r 0f5961910e27 misc/libfreetype/src/gxvalid/gxvcommn.h --- a/misc/libfreetype/src/gxvalid/gxvcommn.h Tue Jul 16 11:14:27 2013 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,565 +0,0 @@ -/***************************************************************************/ -/* */ -/* gxvcommn.h */ -/* */ -/* TrueTypeGX/AAT common tables validation (specification). */ -/* */ -/* 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. */ -/* */ -/***************************************************************************/ - - - /* - * keywords in variable naming - * --------------------------- - * table: Of type FT_Bytes, pointing to the start of this table/subtable. - * limit: Of type FT_Bytes, pointing to the end of this table/subtable, - * including padding for alignment. - * offset: Of type FT_UInt, the number of octets from the start to target. - * length: Of type FT_UInt, the number of octets from the start to the - * end in this table/subtable, including padding for alignment. - * - * _MIN, _MAX: Should be added to the tail of macros, as INT_MIN, etc. - */ - - -#ifndef __GXVCOMMN_H__ -#define __GXVCOMMN_H__ - - -#include -#include "gxvalid.h" -#include FT_INTERNAL_DEBUG_H -#include FT_SFNT_NAMES_H - - -FT_BEGIN_HEADER - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** VALIDATION *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - typedef struct GXV_ValidatorRec_* GXV_Validator; - - -#define DUMMY_LIMIT 0 - - typedef void - (*GXV_Validate_Func)( FT_Bytes table, - FT_Bytes limit, - GXV_Validator valid ); - - - /* ====================== LookupTable Validator ======================== */ - - typedef union GXV_LookupValueDesc_ - { - FT_UShort u; - FT_Short s; - - } GXV_LookupValueDesc; - - typedef const GXV_LookupValueDesc* GXV_LookupValueCPtr; - - typedef enum GXV_LookupValue_SignSpec_ - { - GXV_LOOKUPVALUE_UNSIGNED = 0, - GXV_LOOKUPVALUE_SIGNED - - } GXV_LookupValue_SignSpec; - - - typedef void - (*GXV_Lookup_Value_Validate_Func)( FT_UShort glyph, - GXV_LookupValueCPtr value_p, - GXV_Validator valid ); - - typedef GXV_LookupValueDesc - (*GXV_Lookup_Fmt4_Transit_Func)( FT_UShort relative_gindex, - GXV_LookupValueCPtr base_value_p, - FT_Bytes lookuptbl_limit, - GXV_Validator valid ); - - - /* ====================== StateTable Validator ========================= */ - - typedef enum GXV_GlyphOffset_Format_ - { - GXV_GLYPHOFFSET_NONE = -1, - GXV_GLYPHOFFSET_UCHAR = 2, - GXV_GLYPHOFFSET_CHAR, - GXV_GLYPHOFFSET_USHORT = 4, - GXV_GLYPHOFFSET_SHORT, - GXV_GLYPHOFFSET_ULONG = 8, - GXV_GLYPHOFFSET_LONG - - } GXV_GlyphOffset_Format; - - -#define GXV_GLYPHOFFSET_FMT( table ) \ - ( valid->table.entry_glyphoffset_fmt ) - -#define GXV_GLYPHOFFSET_SIZE( table ) \ - ( valid->table.entry_glyphoffset_fmt / 2 ) - - - /* ----------------------- 16bit StateTable ---------------------------- */ - - typedef union GXV_StateTable_GlyphOffsetDesc_ - { - FT_Byte uc; - FT_UShort u; /* same as GXV_LookupValueDesc */ - FT_ULong ul; - FT_Char c; - FT_Short s; /* same as GXV_LookupValueDesc */ - FT_Long l; - - } GXV_StateTable_GlyphOffsetDesc; - - typedef const GXV_StateTable_GlyphOffsetDesc* GXV_StateTable_GlyphOffsetCPtr; - - typedef void - (*GXV_StateTable_Subtable_Setup_Func)( FT_UShort table_size, - FT_UShort classTable, - FT_UShort stateArray, - FT_UShort entryTable, - FT_UShort* classTable_length_p, - FT_UShort* stateArray_length_p, - FT_UShort* entryTable_length_p, - GXV_Validator valid ); - - typedef void - (*GXV_StateTable_Entry_Validate_Func)( - FT_Byte state, - FT_UShort flags, - GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, - FT_Bytes statetable_table, - FT_Bytes statetable_limit, - GXV_Validator valid ); - - typedef void - (*GXV_StateTable_OptData_Load_Func)( FT_Bytes table, - FT_Bytes limit, - GXV_Validator valid ); - - typedef struct GXV_StateTable_ValidatorRec_ - { - GXV_GlyphOffset_Format entry_glyphoffset_fmt; - void* optdata; - - GXV_StateTable_Subtable_Setup_Func subtable_setup_func; - GXV_StateTable_Entry_Validate_Func entry_validate_func; - GXV_StateTable_OptData_Load_Func optdata_load_func; - - } GXV_StateTable_ValidatorRec, *GXV_StateTable_ValidatorRecData; - - - /* ---------------------- 32bit XStateTable ---------------------------- */ - - typedef GXV_StateTable_GlyphOffsetDesc GXV_XStateTable_GlyphOffsetDesc; - - typedef const GXV_XStateTable_GlyphOffsetDesc* GXV_XStateTable_GlyphOffsetCPtr; - - typedef void - (*GXV_XStateTable_Subtable_Setup_Func)( FT_ULong table_size, - FT_ULong classTable, - FT_ULong stateArray, - FT_ULong entryTable, - FT_ULong* classTable_length_p, - FT_ULong* stateArray_length_p, - FT_ULong* entryTable_length_p, - GXV_Validator valid ); - - typedef void - (*GXV_XStateTable_Entry_Validate_Func)( - FT_UShort state, - FT_UShort flags, - GXV_StateTable_GlyphOffsetCPtr glyphOffset_p, - FT_Bytes xstatetable_table, - FT_Bytes xstatetable_limit, - GXV_Validator valid ); - - - typedef GXV_StateTable_OptData_Load_Func GXV_XStateTable_OptData_Load_Func; - - - typedef struct GXV_XStateTable_ValidatorRec_ - { - int entry_glyphoffset_fmt; - void* optdata; - - GXV_XStateTable_Subtable_Setup_Func subtable_setup_func; - GXV_XStateTable_Entry_Validate_Func entry_validate_func; - GXV_XStateTable_OptData_Load_Func optdata_load_func; - - FT_ULong nClasses; - FT_UShort maxClassID; - - } GXV_XStateTable_ValidatorRec, *GXV_XStateTable_ValidatorRecData; - - - /* ===================================================================== */ - - typedef struct GXV_ValidatorRec_ - { - FT_Validator root; - - FT_Face face; - void* table_data; - - FT_ULong subtable_length; - - GXV_LookupValue_SignSpec lookupval_sign; - GXV_Lookup_Value_Validate_Func lookupval_func; - GXV_Lookup_Fmt4_Transit_Func lookupfmt4_trans; - FT_Bytes lookuptbl_head; - - GXV_StateTable_ValidatorRec statetable; - GXV_XStateTable_ValidatorRec xstatetable; - -#ifdef FT_DEBUG_LEVEL_TRACE - FT_UInt debug_indent; - const FT_String* debug_function_name[3]; -#endif - - } GXV_ValidatorRec; - - -#define GXV_TABLE_DATA( tag, field ) \ - ( ( (GXV_ ## tag ## _Data)valid->table_data )->field ) - -#undef FT_INVALID_ -#define FT_INVALID_( _prefix, _error ) \ - ft_validator_error( valid->root, _prefix ## _error ) - -#define GXV_LIMIT_CHECK( _count ) \ - FT_BEGIN_STMNT \ - if ( p + _count > ( limit? limit : valid->root->limit ) ) \ - FT_INVALID_TOO_SHORT; \ - FT_END_STMNT - - -#ifdef FT_DEBUG_LEVEL_TRACE - -#define GXV_INIT valid->debug_indent = 0 - -#define GXV_NAME_ENTER( name ) \ - FT_BEGIN_STMNT \ - valid->debug_indent += 2; \ - FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ - FT_TRACE4(( "%s table\n", name )); \ - FT_END_STMNT - -#define GXV_EXIT valid->debug_indent -= 2 - -#define GXV_TRACE( s ) \ - FT_BEGIN_STMNT \ - FT_TRACE4(( "%*.s", valid->debug_indent, 0 )); \ - FT_TRACE4( s ); \ - FT_END_STMNT - -#else /* !FT_DEBUG_LEVEL_TRACE */ - -#define GXV_INIT do { } while ( 0 ) -#define GXV_NAME_ENTER( name ) do { } while ( 0 ) -#define GXV_EXIT do { } while ( 0 ) - -#define GXV_TRACE( s ) do { } while ( 0 ) - -#endif /* !FT_DEBUG_LEVEL_TRACE */ - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** 32bit alignment checking *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - -#define GXV_32BIT_ALIGNMENT_VALIDATE( a ) \ - FT_BEGIN_STMNT \ - { \ - if ( 0 != ( (a) % 4 ) ) \ - FT_INVALID_OFFSET ; \ - } \ - FT_END_STMNT - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** Dumping Binary Data *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - -#define GXV_TRACE_HEXDUMP( p, len ) \ - FT_BEGIN_STMNT \ - { \ - FT_Bytes b; \ - \ - \ - for ( b = p; b < (FT_Bytes)p + len; b++ ) \ - FT_TRACE1(("\\x%02x", *b)) ; \ - } \ - FT_END_STMNT - -#define GXV_TRACE_HEXDUMP_C( p, len ) \ - FT_BEGIN_STMNT \ - { \ - FT_Bytes b; \ - \ - \ - for ( b = p; b < (FT_Bytes)p + len; b++ ) \ - if ( 0x40 < *b && *b < 0x7e ) \ - FT_TRACE1(("%c", *b)) ; \ - else \ - FT_TRACE1(("\\x%02x", *b)) ; \ - } \ - FT_END_STMNT - -#define GXV_TRACE_HEXDUMP_SFNTNAME( n ) \ - GXV_TRACE_HEXDUMP( n.string, n.string_len ) - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** LOOKUP TABLE *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - FT_LOCAL( void ) - gxv_BinSrchHeader_validate( FT_Bytes p, - FT_Bytes limit, - FT_UShort* unitSize_p, - FT_UShort* nUnits_p, - GXV_Validator valid ); - - FT_LOCAL( void ) - gxv_LookupTable_validate( FT_Bytes table, - FT_Bytes limit, - GXV_Validator valid ); - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** Glyph ID *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - FT_LOCAL( FT_Int ) - gxv_glyphid_validate( FT_UShort gid, - GXV_Validator valid ); - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** CONTROL POINT *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - FT_LOCAL( void ) - gxv_ctlPoint_validate( FT_UShort gid, - FT_Short ctl_point, - GXV_Validator valid ); - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** SFNT NAME *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - FT_LOCAL( void ) - gxv_sfntName_validate( FT_UShort name_index, - FT_UShort min_index, - FT_UShort max_index, - GXV_Validator valid ); - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** STATE TABLE *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - FT_LOCAL( void ) - gxv_StateTable_subtable_setup( FT_UShort table_size, - FT_UShort classTable, - FT_UShort stateArray, - FT_UShort entryTable, - FT_UShort* classTable_length_p, - FT_UShort* stateArray_length_p, - FT_UShort* entryTable_length_p, - GXV_Validator valid ); - - FT_LOCAL( void ) - gxv_XStateTable_subtable_setup( FT_ULong table_size, - FT_ULong classTable, - FT_ULong stateArray, - FT_ULong entryTable, - FT_ULong* classTable_length_p, - FT_ULong* stateArray_length_p, - FT_ULong* entryTable_length_p, - GXV_Validator valid ); - - FT_LOCAL( void ) - gxv_StateTable_validate( FT_Bytes table, - FT_Bytes limit, - GXV_Validator valid ); - - FT_LOCAL( void ) - gxv_XStateTable_validate( FT_Bytes table, - FT_Bytes limit, - GXV_Validator valid ); - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** UTILITY MACROS AND FUNCTIONS *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - FT_LOCAL( void ) - gxv_array_getlimits_byte( FT_Bytes table, - FT_Bytes limit, - FT_Byte* min, - FT_Byte* max, - GXV_Validator valid ); - - FT_LOCAL( void ) - gxv_array_getlimits_ushort( FT_Bytes table, - FT_Bytes limit, - FT_UShort* min, - FT_UShort* max, - GXV_Validator valid ); - - FT_LOCAL( void ) - gxv_set_length_by_ushort_offset( FT_UShort* offset, - FT_UShort** length, - FT_UShort* buff, - FT_UInt nmemb, - FT_UShort limit, - GXV_Validator valid ); - - FT_LOCAL( void ) - gxv_set_length_by_ulong_offset( FT_ULong* offset, - FT_ULong** length, - FT_ULong* buff, - FT_UInt nmemb, - FT_ULong limit, - GXV_Validator valid); - - -#define GXV_SUBTABLE_OFFSET_CHECK( _offset ) \ - FT_BEGIN_STMNT \ - if ( (_offset) > valid->subtable_length ) \ - FT_INVALID_OFFSET; \ - FT_END_STMNT - -#define GXV_SUBTABLE_LIMIT_CHECK( _count ) \ - FT_BEGIN_STMNT \ - if ( ( p + (_count) - valid->subtable_start ) > \ - valid->subtable_length ) \ - FT_INVALID_TOO_SHORT; \ - FT_END_STMNT - -#define GXV_USHORT_TO_SHORT( _us ) \ - ( ( 0x8000U < ( _us ) ) ? ( ( _us ) - 0x8000U ) : ( _us ) ) - -#define GXV_STATETABLE_HEADER_SIZE ( 2 + 2 + 2 + 2 ) -#define GXV_STATEHEADER_SIZE GXV_STATETABLE_HEADER_SIZE - -#define GXV_XSTATETABLE_HEADER_SIZE ( 4 + 4 + 4 + 4 ) -#define GXV_XSTATEHEADER_SIZE GXV_XSTATETABLE_HEADER_SIZE - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** Table overlapping *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - typedef struct GXV_odtect_DataRec_ - { - FT_Bytes start; - FT_ULong length; - FT_String* name; - - } GXV_odtect_DataRec, *GXV_odtect_Data; - - typedef struct GXV_odtect_RangeRec_ - { - FT_UInt nRanges; - GXV_odtect_Data range; - - } GXV_odtect_RangeRec, *GXV_odtect_Range; - - - FT_LOCAL( void ) - gxv_odtect_add_range( FT_Bytes start, - FT_ULong length, - const FT_String* name, - GXV_odtect_Range odtect ); - - FT_LOCAL( void ) - gxv_odtect_validate( GXV_odtect_Range odtect, - GXV_Validator valid ); - - -#define GXV_ODTECT( n, odtect ) \ - GXV_odtect_DataRec odtect ## _range[n]; \ - GXV_odtect_RangeRec odtect ## _rec = { 0, NULL }; \ - GXV_odtect_Range odtect = NULL - -#define GXV_ODTECT_INIT( odtect ) \ - FT_BEGIN_STMNT \ - odtect ## _rec.nRanges = 0; \ - odtect ## _rec.range = odtect ## _range; \ - odtect = & odtect ## _rec; \ - FT_END_STMNT - - - /* */ - -FT_END_HEADER - -#endif /* __GXVCOMMN_H__ */ - - -/* END */