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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 560 insertions, 0 deletions

diff --git a/src/3rdparty/freetype/src/gxvalid/gxvcommn.h b/src/3rdparty/freetype/src/gxvalid/gxvcommn.h
new file mode 100644
index 0000000000..198d8e4fc5
--- /dev/null
+++ b/src/3rdparty/freetype/src/gxvalid/gxvcommn.h
@@ -0,0 +1,560 @@
+/***************************************************************************/
+/*                                                                         */
+/*  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 <ft2build.h>
+#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 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_LookupValueDesc  value,
+                                     GXV_Validator        valid );
+
+  typedef GXV_LookupValueDesc
+  (*GXV_Lookup_Fmt4_Transit_Func)( FT_UShort            relative_gindex,
+                                   GXV_LookupValueDesc  base_value,
+                                   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 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_GlyphOffsetDesc  glyphOffset,
+     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 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_GlyphOffsetDesc  glyphOffset,
+     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 */