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/***************************************************************************/
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/* */
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/* gxvmorx0.c */
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/* */
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/* TrueTypeGX/AAT morx table validation */
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/* body for type0 (Indic Script Rearrangement) subtable. */
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/* */
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/* Copyright 2005 by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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/***************************************************************************/
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/* */
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/* gxvalid is derived from both gxlayout module and otvalid module. */
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/* Development of gxlayout is supported by the Information-technology */
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/* Promotion Agency(IPA), Japan. */
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/* */
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/***************************************************************************/
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#include "gxvmorx.h"
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/*************************************************************************/
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/* */
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/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
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/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
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/* messages during execution. */
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/* */
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#undef FT_COMPONENT
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#define FT_COMPONENT trace_gxvmorx
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static void
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gxv_morx_subtable_type0_entry_validate(
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FT_UShort state,
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FT_UShort flags,
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GXV_XStateTable_GlyphOffsetCPtr glyphOffset_p,
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FT_Bytes table,
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FT_Bytes limit,
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GXV_Validator valid )
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{
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FT_UShort markFirst;
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FT_UShort dontAdvance;
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FT_UShort markLast;
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FT_UShort reserved;
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FT_UShort verb;
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FT_UNUSED( state );
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FT_UNUSED( glyphOffset_p );
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FT_UNUSED( table );
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FT_UNUSED( limit );
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markFirst = (FT_UShort)( ( flags >> 15 ) & 1 );
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dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 );
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markLast = (FT_UShort)( ( flags >> 13 ) & 1 );
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reserved = (FT_UShort)( flags & 0x1FF0 );
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verb = (FT_UShort)( flags & 0x000F );
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if ( 0 < reserved )
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{
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GXV_TRACE(( " non-zero bits found in reserved range\n" ));
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FT_INVALID_DATA;
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}
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}
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FT_LOCAL_DEF( void )
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gxv_morx_subtable_type0_validate( FT_Bytes table,
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FT_Bytes limit,
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GXV_Validator valid )
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{
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FT_Bytes p = table;
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GXV_NAME_ENTER(
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"morx chain subtable type0 (Indic-Script Rearrangement)" );
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GXV_LIMIT_CHECK( GXV_STATETABLE_HEADER_SIZE );
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valid->xstatetable.optdata = NULL;
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valid->xstatetable.optdata_load_func = NULL;
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valid->xstatetable.subtable_setup_func = NULL;
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valid->xstatetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE;
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valid->xstatetable.entry_validate_func =
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gxv_morx_subtable_type0_entry_validate;
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gxv_XStateTable_validate( p, limit, valid );
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GXV_EXIT;
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}
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/* END */
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