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/***************************************************************************/
/* */
/* gxvmorx0.c */
/* */
/* TrueTypeGX/AAT morx table validation */
/* body for type0 (Indic Script Rearrangement) 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 "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 trace_gxvmorx
static void
gxv_morx_subtable_type0_entry_validate(
FT_UShort state,
FT_UShort flags,
GXV_XStateTable_GlyphOffsetDesc glyphOffset,
FT_Bytes table,
FT_Bytes limit,
GXV_Validator valid )
{
FT_UShort markFirst;
FT_UShort dontAdvance;
FT_UShort markLast;
FT_UShort reserved;
FT_UShort verb;
FT_UNUSED( state );
FT_UNUSED( glyphOffset );
FT_UNUSED( table );
FT_UNUSED( limit );
markFirst = (FT_UShort)( ( flags >> 15 ) & 1 );
dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 );
markLast = (FT_UShort)( ( flags >> 13 ) & 1 );
reserved = (FT_UShort)( flags & 0x1FF0 );
verb = (FT_UShort)( flags & 0x000F );
if ( 0 < reserved )
{
GXV_TRACE(( " non-zero bits found in reserved range\n" ));
FT_INVALID_DATA;
}
}
FT_LOCAL_DEF( void )
gxv_morx_subtable_type0_validate( FT_Bytes table,
FT_Bytes limit,
GXV_Validator valid )
{
FT_Bytes p = table;
GXV_NAME_ENTER(
"morx chain subtable type0 (Indic-Script Rearrangement)" );
GXV_LIMIT_CHECK( GXV_STATETABLE_HEADER_SIZE );
valid->xstatetable.optdata = NULL;
valid->xstatetable.optdata_load_func = NULL;
valid->xstatetable.subtable_setup_func = NULL;
valid->xstatetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE;
valid->xstatetable.entry_validate_func =
gxv_morx_subtable_type0_entry_validate;
gxv_XStateTable_validate( p, limit, valid );
GXV_EXIT;
}
/* END */
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