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

1 files changed, 226 insertions, 0 deletions

diff --git a/src/3rdparty/freetype/src/gxvalid/gxvmort5.c b/src/3rdparty/freetype/src/gxvalid/gxvmort5.c
new file mode 100644
index 0000000000..a7cabc359f
--- /dev/null
+++ b/src/3rdparty/freetype/src/gxvalid/gxvmort5.c
@@ -0,0 +1,226 @@
+/***************************************************************************/
+/*                                                                         */
+/*  gxvmort5.c                                                             */
+/*                                                                         */
+/*    TrueTypeGX/AAT mort table validation                                 */
+/*    body for type5 (Contextual Glyph Insertion) subtable.                */
+/*                                                                         */
+/*  Copyright 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 "gxvmort.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_gxvmort
+
+
+  /*
+   * mort subtable type5 (Contextual Glyph Insertion)
+   * has the format of StateTable with insertion-glyph-list,
+   * but without name.  The offset is given by glyphOffset in
+   * entryTable.  There is no table location declaration
+   * like xxxTable.
+   */
+
+  typedef struct  GXV_mort_subtable_type5_StateOptRec_
+  {
+    FT_UShort   classTable;
+    FT_UShort   stateArray;
+    FT_UShort   entryTable;
+
+#define GXV_MORT_SUBTABLE_TYPE5_HEADER_SIZE  GXV_STATETABLE_HEADER_SIZE
+
+    FT_UShort*  classTable_length_p;
+    FT_UShort*  stateArray_length_p;
+    FT_UShort*  entryTable_length_p;
+
+  }  GXV_mort_subtable_type5_StateOptRec,
+    *GXV_mort_subtable_type5_StateOptRecData;
+
+
+  FT_LOCAL_DEF( void )
+  gxv_mort_subtable_type5_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 )
+  {
+    GXV_mort_subtable_type5_StateOptRecData  optdata =
+      (GXV_mort_subtable_type5_StateOptRecData)valid->statetable.optdata;
+
+
+    gxv_StateTable_subtable_setup( table_size,
+                                   classTable,
+                                   stateArray,
+                                   entryTable,
+                                   classTable_length_p,
+                                   stateArray_length_p,
+                                   entryTable_length_p,
+                                   valid );
+
+    optdata->classTable = classTable;
+    optdata->stateArray = stateArray;
+    optdata->entryTable = entryTable;
+
+    optdata->classTable_length_p = classTable_length_p;
+    optdata->stateArray_length_p = stateArray_length_p;
+    optdata->entryTable_length_p = entryTable_length_p;
+  }
+
+
+  static void
+  gxv_mort_subtable_type5_InsertList_validate( FT_UShort      offset,
+                                               FT_UShort      count,
+                                               FT_Bytes       table,
+                                               FT_Bytes       limit,
+                                               GXV_Validator  valid )
+  {
+    /*
+     * We don't know the range of insertion-glyph-list.
+     * Set range by whole of state table.
+     */
+    FT_Bytes  p = table + offset;
+
+    GXV_mort_subtable_type5_StateOptRecData  optdata =
+      (GXV_mort_subtable_type5_StateOptRecData)valid->statetable.optdata;
+
+    if ( optdata->classTable < offset                                   &&
+         offset < optdata->classTable + *(optdata->classTable_length_p) )
+      GXV_TRACE(( " offset runs into ClassTable" ));
+    if ( optdata->stateArray < offset                                   &&
+         offset < optdata->stateArray + *(optdata->stateArray_length_p) )
+      GXV_TRACE(( " offset runs into StateArray" ));
+    if ( optdata->entryTable < offset                                   &&
+         offset < optdata->entryTable + *(optdata->entryTable_length_p) )
+      GXV_TRACE(( " offset runs into EntryTable" ));
+
+    while ( p < table + offset + ( count * 2 ) )
+    {
+      FT_UShort insert_glyphID;
+
+
+      GXV_LIMIT_CHECK( 2 );
+      insert_glyphID = FT_NEXT_USHORT( p );
+      GXV_TRACE(( " 0x%04x", insert_glyphID ));
+    }
+
+    GXV_TRACE(( "\n" ));
+  }
+
+
+  static void
+  gxv_mort_subtable_type5_entry_validate(
+    FT_Byte                         state,
+    FT_UShort                       flags,
+    GXV_StateTable_GlyphOffsetDesc  glyphOffset,
+    FT_Bytes                        table,
+    FT_Bytes                        limit,
+    GXV_Validator                   valid )
+  {
+    FT_Bool    setMark;
+    FT_Bool    dontAdvance;
+    FT_Bool    currentIsKashidaLike;
+    FT_Bool    markedIsKashidaLike;
+    FT_Bool    currentInsertBefore;
+    FT_Bool    markedInsertBefore;
+    FT_Byte    currentInsertCount;
+    FT_Byte    markedInsertCount;
+    FT_UShort  currentInsertList;
+    FT_UShort  markedInsertList;
+
+    FT_UNUSED( state );
+
+
+    setMark              = FT_BOOL( ( flags >> 15 ) & 1 );
+    dontAdvance          = FT_BOOL( ( flags >> 14 ) & 1 );
+    currentIsKashidaLike = FT_BOOL( ( flags >> 13 ) & 1 );
+    markedIsKashidaLike  = FT_BOOL( ( flags >> 12 ) & 1 );
+    currentInsertBefore  = FT_BOOL( ( flags >> 11 ) & 1 );
+    markedInsertBefore   = FT_BOOL( ( flags >> 10 ) & 1 );
+
+    currentInsertCount   = (FT_Byte)( ( flags >> 5 ) & 0x1F   );
+    markedInsertCount    = (FT_Byte)(   flags        & 0x001F );
+
+    currentInsertList    = (FT_UShort)( glyphOffset.ul >> 16 );
+    markedInsertList     = (FT_UShort)( glyphOffset.ul       );
+
+    if ( 0 != currentInsertList && 0 != currentInsertCount )
+    {
+      gxv_mort_subtable_type5_InsertList_validate( currentInsertList,
+                                                   currentInsertCount,
+                                                   table,
+                                                   limit,
+                                                   valid );
+    }
+
+    if ( 0 != markedInsertList && 0 != markedInsertCount )
+    {
+      gxv_mort_subtable_type5_InsertList_validate( markedInsertList,
+                                                   markedInsertCount,
+                                                   table,
+                                                   limit,
+                                                   valid );
+    }
+  }
+
+
+  FT_LOCAL_DEF( void )
+  gxv_mort_subtable_type5_validate( FT_Bytes       table,
+                                    FT_Bytes       limit,
+                                    GXV_Validator  valid )
+  {
+    FT_Bytes  p = table;
+
+    GXV_mort_subtable_type5_StateOptRec      et_rec;
+    GXV_mort_subtable_type5_StateOptRecData  et = &et_rec;
+
+
+    GXV_NAME_ENTER( "mort chain subtable type5 (Glyph Insertion)" );
+
+    GXV_LIMIT_CHECK( GXV_MORT_SUBTABLE_TYPE5_HEADER_SIZE );
+
+    valid->statetable.optdata =
+      et;
+    valid->statetable.optdata_load_func =
+      NULL;
+    valid->statetable.subtable_setup_func =
+      gxv_mort_subtable_type5_subtable_setup;
+    valid->statetable.entry_glyphoffset_fmt =
+      GXV_GLYPHOFFSET_ULONG;
+    valid->statetable.entry_validate_func =
+      gxv_mort_subtable_type5_entry_validate;
+
+    gxv_StateTable_validate( p, limit, valid );
+
+    GXV_EXIT;
+  }
+
+
+/* END */