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

/****************************************************************************
 *
 * gxvjust.c
 *
 *   TrueTypeGX/AAT just table validation (body).
 *
 * 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 "gxvalid.h"
#include "gxvcommn.h"

#include <freetype/ftsnames.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 …

  /*
   * referred `just' table format specification:
   * https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6just.html
   * last updated 2000.
   * ----------------------------------------------
   * [JUST HEADER]: GXV_JUST_HEADER_SIZE
   * version     (fixed:  32bit) = 0x00010000
   * format      (uint16: 16bit) = 0 is only defined (2000)
   * horizOffset (uint16: 16bit)
   * vertOffset  (uint16: 16bit)
   * ----------------------------------------------
   */

  GXV_just_Data;


#define GXV_JUST_DATA( a ) …


  /* GX just table does not define their subset of GID */
  static void
  gxv_just_check_max_gid( FT_UShort         gid,
                          const FT_String*  msg_tag,
                          GXV_Validator     gxvalid )
  { … }


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


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


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


  static void
  gxv_just_actSubrecord_type0_validate( FT_Bytes       table,
                                        FT_Bytes       limit,
                                        GXV_Validator  gxvalid )
  { … }


  static void
  gxv_just_actSubrecord_type1_validate( FT_Bytes       table,
                                        FT_Bytes       limit,
                                        GXV_Validator  gxvalid )
  { … }


  static void
  gxv_just_actSubrecord_type2_validate( FT_Bytes       table,
                                        FT_Bytes       limit,
                                        GXV_Validator  gxvalid )
  { … }


  static void
  gxv_just_actSubrecord_type4_validate( FT_Bytes       table,
                                        FT_Bytes       limit,
                                        GXV_Validator  gxvalid )
  { … }


  static void
  gxv_just_actSubrecord_type5_validate( FT_Bytes       table,
                                        FT_Bytes       limit,
                                        GXV_Validator  gxvalid )
  { … }


  /* parse single actSubrecord */
  static void
  gxv_just_actSubrecord_validate( FT_Bytes       table,
                                  FT_Bytes       limit,
                                  GXV_Validator  gxvalid )
  { … }


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


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


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


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


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


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


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


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


  /*
   * gxv_just_justData_validate() parses and validates horizData, vertData.
   */
  static void
  gxv_just_justData_validate( FT_Bytes       table,
                              FT_Bytes       limit,
                              GXV_Validator  gxvalid )
  { … }


  FT_LOCAL_DEF( void )
  gxv_just_validate( FT_Bytes      table,
                     FT_Face       face,
                     FT_Validator  ftvalid )
  { … }


/* END */