0,0 → 1,111 |
/***************************************************************************/ |
/* */ |
/* 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. */ |
/* */ |
/***************************************************************************/ |
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/***************************************************************************/ |
/* */ |
/* gxvalid is derived from both gxlayout module and otvalid module. */ |
/* Development of gxlayout is supported by the Information-technology */ |
/* Promotion Agency(IPA), Japan. */ |
/* */ |
/***************************************************************************/ |
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#include "gxvmorx.h" |
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/*************************************************************************/ |
/* */ |
/* 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 |
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static void |
gxv_morx_subtable_type0_entry_validate( |
FT_UShort state, |
FT_UShort flags, |
GXV_XStateTable_GlyphOffsetCPtr glyphOffset_p, |
FT_Bytes table, |
FT_Bytes limit, |
GXV_Validator valid ) |
{ |
#ifdef GXV_LOAD_UNUSED_VARS |
FT_UShort markFirst; |
FT_UShort dontAdvance; |
FT_UShort markLast; |
#endif |
FT_UShort reserved; |
#ifdef GXV_LOAD_UNUSED_VARS |
FT_UShort verb; |
#endif |
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FT_UNUSED( state ); |
FT_UNUSED( glyphOffset_p ); |
FT_UNUSED( table ); |
FT_UNUSED( limit ); |
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#ifdef GXV_LOAD_UNUSED_VARS |
markFirst = (FT_UShort)( ( flags >> 15 ) & 1 ); |
dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); |
markLast = (FT_UShort)( ( flags >> 13 ) & 1 ); |
#endif |
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reserved = (FT_UShort)( flags & 0x1FF0 ); |
#ifdef GXV_LOAD_UNUSED_VARS |
verb = (FT_UShort)( flags & 0x000F ); |
#endif |
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if ( 0 < reserved ) |
{ |
GXV_TRACE(( " non-zero bits found in reserved range\n" )); |
FT_INVALID_DATA; |
} |
} |
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FT_LOCAL_DEF( void ) |
gxv_morx_subtable_type0_validate( FT_Bytes table, |
FT_Bytes limit, |
GXV_Validator valid ) |
{ |
FT_Bytes p = table; |
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GXV_NAME_ENTER( |
"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; |
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; |
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gxv_XStateTable_validate( p, limit, valid ); |
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GXV_EXIT; |
} |
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/* END */ |