diff options
Diffstat (limited to 'src/freetype2/otvalid/otvmod.c')
| -rw-r--r-- | src/freetype2/otvalid/otvmod.c | 52 |
1 files changed, 45 insertions, 7 deletions
diff --git a/src/freetype2/otvalid/otvmod.c b/src/freetype2/otvalid/otvmod.c index 157272f..3248564 100644 --- a/src/freetype2/otvalid/otvmod.c +++ b/src/freetype2/otvalid/otvmod.c @@ -4,7 +4,7 @@ /* */ /* FreeType's OpenType validation module implementation (body). */ /* */ -/* Copyright 2004, 2005, 2006 by */ +/* Copyright 2004, 2005, 2006, 2007, 2008 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -79,12 +79,27 @@ FT_Byte* volatile gpos; FT_Byte* volatile gsub; FT_Byte* volatile jstf; + FT_Byte* volatile math; FT_ULong len_base, len_gdef, len_gpos, len_gsub, len_jstf; + FT_ULong len_math; + FT_UInt num_glyphs = (FT_UInt)face->num_glyphs; FT_ValidatorRec volatile valid; - base = gdef = gpos = gsub = jstf = NULL; - len_base = len_gdef = len_gpos = len_gsub = len_jstf = 0; + base = gdef = gpos = gsub = jstf = math = NULL; + len_base = len_gdef = len_gpos = len_gsub = len_jstf = len_math = 0; + + /* + * XXX: OpenType tables cannot handle 32-bit glyph index, + * although broken TrueType can have 32-bit glyph index. + */ + if ( face->num_glyphs > 0xFFFFL ) + { + FT_TRACE1(( "otv_validate: Invalid glyphs index (0x0000FFFF - 0x%08x) ", + face->num_glyphs )); + FT_TRACE1(( "are not handled by OpenType tables\n" )); + num_glyphs = 0xFFFF; + } /* load tables */ @@ -123,6 +138,13 @@ goto Exit; } + if ( ot_flags & FT_VALIDATE_MATH ) + { + error = otv_load_table( face, TTAG_MATH, &math, &len_math ); + if ( error ) + goto Exit; + } + /* validate tables */ if ( base ) @@ -139,7 +161,7 @@ { ft_validator_init( &valid, gpos, gpos + len_gpos, FT_VALIDATE_DEFAULT ); if ( ft_setjmp( valid.jump_buffer ) == 0 ) - otv_GPOS_validate( gpos, face->num_glyphs, &valid ); + otv_GPOS_validate( gpos, num_glyphs, &valid ); error = valid.error; if ( error ) goto Exit; @@ -149,7 +171,7 @@ { ft_validator_init( &valid, gsub, gsub + len_gsub, FT_VALIDATE_DEFAULT ); if ( ft_setjmp( valid.jump_buffer ) == 0 ) - otv_GSUB_validate( gsub, face->num_glyphs, &valid ); + otv_GSUB_validate( gsub, num_glyphs, &valid ); error = valid.error; if ( error ) goto Exit; @@ -159,7 +181,7 @@ { ft_validator_init( &valid, gdef, gdef + len_gdef, FT_VALIDATE_DEFAULT ); if ( ft_setjmp( valid.jump_buffer ) == 0 ) - otv_GDEF_validate( gdef, gsub, gpos, &valid ); + otv_GDEF_validate( gdef, gsub, gpos, num_glyphs, &valid ); error = valid.error; if ( error ) goto Exit; @@ -169,7 +191,17 @@ { ft_validator_init( &valid, jstf, jstf + len_jstf, FT_VALIDATE_DEFAULT ); if ( ft_setjmp( valid.jump_buffer ) == 0 ) - otv_JSTF_validate( jstf, gsub, gpos, face->num_glyphs, &valid ); + otv_JSTF_validate( jstf, gsub, gpos, num_glyphs, &valid ); + error = valid.error; + if ( error ) + goto Exit; + } + + if ( math ) + { + ft_validator_init( &valid, math, math + len_math, FT_VALIDATE_DEFAULT ); + if ( ft_setjmp( valid.jump_buffer ) == 0 ) + otv_MATH_validate( math, num_glyphs, &valid ); error = valid.error; if ( error ) goto Exit; @@ -192,6 +224,12 @@ FT_FREE( gsub ); FT_FREE( jstf ); } + { + FT_Memory memory = FT_FACE_MEMORY( face ); + + + FT_FREE( math ); /* Can't return this as API is frozen */ + } return error; } |