diff options
Diffstat (limited to 'freetype/src/gxvalid/gxvprop.c')
| -rw-r--r-- | freetype/src/gxvalid/gxvprop.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/freetype/src/gxvalid/gxvprop.c b/freetype/src/gxvalid/gxvprop.c index 66c3ab740..54777271a 100644 --- a/freetype/src/gxvalid/gxvprop.c +++ b/freetype/src/gxvalid/gxvprop.c @@ -96,7 +96,10 @@ if ( glyph->advance.x != (FT_Pos)0 || glyph->advance.y != (FT_Pos)0 ) + { + GXV_TRACE(( " found non-zero advance in zero-advance glyph\n" )); FT_INVALID_DATA; + } GXV_EXIT; } @@ -119,7 +122,10 @@ offset = (FT_UShort)( property & GXV_PROP_COMPLEMENTARY_BRACKET_OFFSET ); if ( offset == 0 ) - FT_INVALID_DATA; + { + GXV_TRACE(( " found zero offset to property\n" )); + FT_INVALID_OFFSET; + } complement = (char)( offset >> 8 ); if ( complement & 0x08 ) @@ -131,7 +137,10 @@ /* The gid for complement must be greater than 0 */ if ( glyph <= complement ) + { + GXV_TRACE(( " found non-positive glyph complement\n" )); FT_INVALID_DATA; + } } else { @@ -150,18 +159,27 @@ if ( property & GXV_PROP_ATTACHING_TO_RIGHT ) { if ( GXV_PROP_DATA( version ) == 0x00010000UL ) + { + GXV_TRACE(( " found older version (1.0) in new version table\n" )); FT_INVALID_DATA; + } } if ( property & GXV_PROP_RESERVED ) + { + GXV_TRACE(( " found non-zero bits in reserved bits\n" )); FT_INVALID_DATA; + } if ( ( property & GXV_PROP_DIRECTIONALITY_CLASS ) > 11 ) { /* TODO: Too restricted. Use the validation level. */ if ( GXV_PROP_DATA( version ) == 0x00010000UL || GXV_PROP_DATA( version ) == 0x00020000UL ) + { + GXV_TRACE(( " found too old version in directionality class\n" )); FT_INVALID_DATA; + } } } @@ -264,16 +282,26 @@ format = FT_NEXT_USHORT( p ); defaultProp = FT_NEXT_USHORT( p ); + GXV_TRACE(( " version 0x%08x\n", version )); + GXV_TRACE(( " format 0x%04x\n", format )); + GXV_TRACE(( " defaultProp 0x%04x\n", defaultProp )); + /* only versions 1.0, 2.0, 3.0 are defined (1996) */ if ( version != 0x00010000UL && version != 0x00020000UL && version != 0x00030000UL ) + { + GXV_TRACE(( " found unknown version\n" )); FT_INVALID_FORMAT; + } /* only formats 0x0000, 0x0001 are defined (1996) */ if ( format > 1 ) + { + GXV_TRACE(( " found unknown format\n" )); FT_INVALID_FORMAT; + } gxv_prop_property_validate( defaultProp, 0, valid ); |