godot/thirdparty/freetype/src/gxvalid/gxvmorx1.c

/****************************************************************************
 *
 * gxvmorx1.c
 *
 *   TrueTypeGX/AAT morx table validation
 *   body for type1 (Contextual Substitution) subtable.
 *
 * Copyright (C) 2005-2023 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 "gxvmorx.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 …


  GXV_morx_subtable_type1_StateOptRecData;


#define GXV_MORX_SUBTABLE_TYPE1_HEADER_SIZE …


  static void
  gxv_morx_subtable_type1_substitutionTable_load( FT_Bytes       table,
                                                  FT_Bytes       limit,
                                                  GXV_Validator  gxvalid )
  { … }


  static void
  gxv_morx_subtable_type1_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  gxvalid )
  { … }


  static void
  gxv_morx_subtable_type1_entry_validate(
    FT_UShort                       state,
    FT_UShort                       flags,
    GXV_StateTable_GlyphOffsetCPtr  glyphOffset_p,
    FT_Bytes                        table,
    FT_Bytes                        limit,
    GXV_Validator                   gxvalid )
  { … }


  static void
  gxv_morx_subtable_type1_LookupValue_validate( FT_UShort            glyph,
                                                GXV_LookupValueCPtr  value_p,
                                                GXV_Validator        gxvalid )
  { … }


  static GXV_LookupValueDesc
  gxv_morx_subtable_type1_LookupFmt4_transit(
    FT_UShort            relative_gindex,
    GXV_LookupValueCPtr  base_value_p,
    FT_Bytes             lookuptbl_limit,
    GXV_Validator        gxvalid )
  { … }


  /*
   * TODO: length should be limit?
   **/
  static void
  gxv_morx_subtable_type1_substitutionTable_validate( FT_Bytes       table,
                                                      FT_Bytes       limit,
                                                      GXV_Validator  gxvalid )
  { … }


  /*
   * subtable for Contextual glyph substitution is a modified StateTable.
   * In addition to classTable, stateArray, entryTable, the field
   * `substitutionTable' is added.
   */
  FT_LOCAL_DEF( void )
  gxv_morx_subtable_type1_validate( FT_Bytes       table,
                                    FT_Bytes       limit,
                                    GXV_Validator  gxvalid )
  { … }


/* END */