diff options
Diffstat (limited to 'freetype/src/gxvalid/gxvkern.c')
| -rw-r--r-- | freetype/src/gxvalid/gxvkern.c | 66 |
1 files changed, 56 insertions, 10 deletions
diff --git a/freetype/src/gxvalid/gxvkern.c b/freetype/src/gxvalid/gxvkern.c index 2137db842..0ec978f7b 100644 --- a/freetype/src/gxvalid/gxvkern.c +++ b/freetype/src/gxvalid/gxvkern.c @@ -127,7 +127,9 @@ { FT_UShort gid_left; FT_UShort gid_right; +#ifdef GXV_LOAD_UNUSED_VARS FT_Short kernValue; +#endif /* left */ @@ -156,7 +158,11 @@ FT_INVALID_DATA; /* skip the kern value */ +#ifdef GXV_LOAD_UNUSED_VARS kernValue = FT_NEXT_SHORT( p ); +#else + p += 2; +#endif } GXV_EXIT; @@ -261,18 +267,24 @@ FT_Bytes limit, GXV_Validator valid ) { +#ifdef GXV_LOAD_UNUSED_VARS FT_UShort push; FT_UShort dontAdvance; +#endif FT_UShort valueOffset; +#ifdef GXV_LOAD_UNUSED_VARS FT_UShort kernAction; FT_UShort kernValue; +#endif FT_UNUSED( state ); FT_UNUSED( glyphOffset_p ); +#ifdef GXV_LOAD_UNUSED_VARS push = (FT_UShort)( ( flags >> 15 ) & 1 ); dontAdvance = (FT_UShort)( ( flags >> 14 ) & 1 ); +#endif valueOffset = (FT_UShort)( flags & 0x3FFF ); { @@ -288,8 +300,12 @@ limit = table + vt_rec->valueTable + vt_rec->valueTable_length; GXV_LIMIT_CHECK( 2 + 2 ); +#ifdef GXV_LOAD_UNUSED_VARS kernAction = FT_NEXT_USHORT( p ); kernValue = FT_NEXT_USHORT( p ); +#else + p += 4; +#endif } } @@ -475,10 +491,12 @@ { GXV_TRACE(( "maxGID=%d, but glyphCount=%d\n", valid->face->num_glyphs, glyphCount )); - if ( valid->root->level >= FT_VALIDATE_PARANOID ) - FT_INVALID_GLYPH_ID; + GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID ); } + if ( flags != 0 ) + GXV_TRACE(( "kern subtable fmt3 has nonzero value" + " (%d) in unused flag\n", flags )); /* * just skip kernValue[kernValueCount] */ @@ -545,20 +563,24 @@ GXV_Validator valid ) { /* new Apple-dialect */ +#ifdef GXV_LOAD_TRACE_VARS FT_Bool kernVertical; FT_Bool kernCrossStream; FT_Bool kernVariation; +#endif FT_UNUSED( valid ); /* reserved bits = 0 */ if ( coverage & 0x1FFC ) - return 0; + return FALSE; +#ifdef GXV_LOAD_TRACE_VARS kernVertical = FT_BOOL( ( coverage >> 15 ) & 1 ); kernCrossStream = FT_BOOL( ( coverage >> 14 ) & 1 ); kernVariation = FT_BOOL( ( coverage >> 13 ) & 1 ); +#endif *format = (FT_UShort)( coverage & 0x0003 ); @@ -568,7 +590,7 @@ GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" )); - return 1; + return TRUE; } @@ -578,20 +600,24 @@ GXV_Validator valid ) { /* classic Apple-dialect */ +#ifdef GXV_LOAD_TRACE_VARS FT_Bool horizontal; FT_Bool cross_stream; +#endif /* check expected flags, but don't check if MS-dialect is impossible */ if ( !( coverage & 0xFD00 ) && KERN_ALLOWS_MS( valid ) ) - return 0; + return FALSE; /* reserved bits = 0 */ if ( coverage & 0x02FC ) - return 0; + return FALSE; +#ifdef GXV_LOAD_TRACE_VARS horizontal = FT_BOOL( ( coverage >> 15 ) & 1 ); cross_stream = FT_BOOL( ( coverage >> 13 ) & 1 ); +#endif *format = (FT_UShort)( coverage & 0x0003 ); @@ -601,11 +627,11 @@ /* format 1 requires GX State Machine, too new for classic */ if ( *format == 1 ) - return 0; + return FALSE; GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" )); - return 1; + return TRUE; } @@ -615,22 +641,26 @@ GXV_Validator valid ) { /* classic Microsoft-dialect */ +#ifdef GXV_LOAD_TRACE_VARS FT_Bool horizontal; FT_Bool minimum; FT_Bool cross_stream; FT_Bool override; +#endif FT_UNUSED( valid ); /* reserved bits = 0 */ if ( coverage & 0xFDF0 ) - return 0; + return FALSE; +#ifdef GXV_LOAD_TRACE_VARS horizontal = FT_BOOL( coverage & 1 ); minimum = FT_BOOL( ( coverage >> 1 ) & 1 ); cross_stream = FT_BOOL( ( coverage >> 2 ) & 1 ); override = FT_BOOL( ( coverage >> 3 ) & 1 ); +#endif *format = (FT_UShort)( ( coverage >> 8 ) & 0x0003 ); @@ -643,7 +673,7 @@ GXV_TRACE(( "kerning values in Microsoft format 2 subtable are ignored\n" )); - return 1; + return TRUE; } @@ -714,10 +744,14 @@ GXV_Validator valid ) { FT_Bytes p = table; +#ifdef GXV_LOAD_TRACE_VARS FT_UShort version = 0; /* MS only: subtable version, unused */ +#endif FT_ULong length; /* MS: 16bit, Apple: 32bit*/ FT_UShort coverage; +#ifdef GXV_LOAD_TRACE_VARS FT_UShort tupleIndex = 0; /* Apple only */ +#endif FT_UShort u16[2]; FT_UShort format = 255; /* subtable format */ @@ -732,23 +766,35 @@ switch ( gxv_kern_coverage_validate( coverage, &format, valid ) ) { case KERN_DIALECT_MS: +#ifdef GXV_LOAD_TRACE_VARS version = u16[0]; +#endif length = u16[1]; +#ifdef GXV_LOAD_TRACE_VARS tupleIndex = 0; +#endif GXV_TRACE(( "Subtable version = %d\n", version )); GXV_TRACE(( "Subtable length = %d\n", length )); break; case KERN_DIALECT_APPLE: +#ifdef GXV_LOAD_TRACE_VARS version = 0; +#endif length = ( u16[0] << 16 ) + u16[1]; +#ifdef GXV_LOAD_TRACE_VARS tupleIndex = 0; +#endif GXV_TRACE(( "Subtable length = %d\n", length )); if ( KERN_IS_NEW( valid ) ) { GXV_LIMIT_CHECK( 2 ); +#ifdef GXV_LOAD_TRACE_VARS tupleIndex = FT_NEXT_USHORT( p ); +#else + p += 2; +#endif GXV_TRACE(( "Subtable tupleIndex = %d\n", tupleIndex )); } break; |