diff options
Diffstat (limited to 'src/3rdparty/freetype/src/gxvalid/gxvmorx0.c')
| -rw-r--r-- | src/3rdparty/freetype/src/gxvalid/gxvmorx0.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/3rdparty/freetype/src/gxvalid/gxvmorx0.c b/src/3rdparty/freetype/src/gxvalid/gxvmorx0.c new file mode 100644 index 0000000000..ca92b6c392 --- /dev/null +++ b/src/3rdparty/freetype/src/gxvalid/gxvmorx0.c @@ -0,0 +1,103 @@ +/***************************************************************************/ +/* */ +/* 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 */ |