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-rw-r--r--src/3rdparty/freetype/src/gxvalid/gxvkern.c218
1 files changed, 131 insertions, 87 deletions
diff --git a/src/3rdparty/freetype/src/gxvalid/gxvkern.c b/src/3rdparty/freetype/src/gxvalid/gxvkern.c
index 2137db842a..787e3db830 100644
--- a/src/3rdparty/freetype/src/gxvalid/gxvkern.c
+++ b/src/3rdparty/freetype/src/gxvalid/gxvkern.c
@@ -4,7 +4,7 @@
/* */
/* TrueTypeGX/AAT kern table validation (body). */
/* */
-/* Copyright 2004, 2005, 2006, 2007 */
+/* Copyright 2004-2007, 2013 */
/* by suzuki toshiya, Masatake YAMATO, Red Hat K.K., */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
@@ -79,20 +79,20 @@
#define GXV_KERN_DATA( field ) GXV_TABLE_DATA( kern, field )
-#define KERN_IS_CLASSIC( valid ) \
+#define KERN_IS_CLASSIC( gxvalid ) \
( KERN_VERSION_CLASSIC == GXV_KERN_DATA( version ) )
-#define KERN_IS_NEW( valid ) \
+#define KERN_IS_NEW( gxvalid ) \
( KERN_VERSION_NEW == GXV_KERN_DATA( version ) )
-#define KERN_DIALECT( valid ) \
+#define KERN_DIALECT( gxvalid ) \
GXV_KERN_DATA( dialect_request )
-#define KERN_ALLOWS_MS( valid ) \
- ( KERN_DIALECT( valid ) & KERN_DIALECT_MS )
-#define KERN_ALLOWS_APPLE( valid ) \
- ( KERN_DIALECT( valid ) & KERN_DIALECT_APPLE )
+#define KERN_ALLOWS_MS( gxvalid ) \
+ ( KERN_DIALECT( gxvalid ) & KERN_DIALECT_MS )
+#define KERN_ALLOWS_APPLE( gxvalid ) \
+ ( KERN_DIALECT( gxvalid ) & KERN_DIALECT_APPLE )
-#define GXV_KERN_HEADER_SIZE ( KERN_IS_NEW( valid ) ? 8 : 4 )
-#define GXV_KERN_SUBTABLE_HEADER_SIZE ( KERN_IS_NEW( valid ) ? 8 : 6 )
+#define GXV_KERN_HEADER_SIZE ( KERN_IS_NEW( gxvalid ) ? 8 : 4 )
+#define GXV_KERN_SUBTABLE_HEADER_SIZE ( KERN_IS_NEW( gxvalid ) ? 8 : 6 )
/*************************************************************************/
@@ -110,7 +110,7 @@
gxv_kern_subtable_fmt0_pairs_validate( FT_Bytes table,
FT_Bytes limit,
FT_UShort nPairs,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
FT_Bytes p = table;
FT_UShort i;
@@ -127,16 +127,18 @@
{
FT_UShort gid_left;
FT_UShort gid_right;
+#ifdef GXV_LOAD_UNUSED_VARS
FT_Short kernValue;
+#endif
/* left */
gid_left = FT_NEXT_USHORT( p );
- gxv_glyphid_validate( gid_left, valid );
+ gxv_glyphid_validate( gid_left, gxvalid );
/* right */
gid_right = FT_NEXT_USHORT( p );
- gxv_glyphid_validate( gid_right, valid );
+ gxv_glyphid_validate( gid_right, gxvalid );
/* Pairs of left and right GIDs must be unique and sorted. */
GXV_TRACE(( "left gid = %u, right gid = %u\n", gid_left, gid_right ));
@@ -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;
@@ -165,7 +171,7 @@
static void
gxv_kern_subtable_fmt0_validate( FT_Bytes table,
FT_Bytes limit,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
FT_Bytes p = table + GXV_KERN_SUBTABLE_HEADER_SIZE;
@@ -180,10 +186,10 @@
/* nPairs, searchRange, entrySelector, rangeShift */
GXV_LIMIT_CHECK( 2 + 2 + 2 + 2 );
- gxv_BinSrchHeader_validate( p, limit, &unitSize, &nPairs, valid );
+ gxv_BinSrchHeader_validate( p, limit, &unitSize, &nPairs, gxvalid );
p += 2 + 2 + 2 + 2;
- gxv_kern_subtable_fmt0_pairs_validate( p, limit, nPairs, valid );
+ gxv_kern_subtable_fmt0_pairs_validate( p, limit, nPairs, gxvalid );
GXV_EXIT;
}
@@ -203,11 +209,11 @@
static void
gxv_kern_subtable_fmt1_valueTable_load( FT_Bytes table,
FT_Bytes limit,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
FT_Bytes p = table;
GXV_kern_fmt1_StateOptRecData optdata =
- (GXV_kern_fmt1_StateOptRecData)valid->statetable.optdata;
+ (GXV_kern_fmt1_StateOptRecData)gxvalid->statetable.optdata;
GXV_LIMIT_CHECK( 2 );
@@ -226,14 +232,14 @@
FT_UShort* classTable_length_p,
FT_UShort* stateArray_length_p,
FT_UShort* entryTable_length_p,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
FT_UShort o[4];
FT_UShort *l[4];
FT_UShort buff[5];
GXV_kern_fmt1_StateOptRecData optdata =
- (GXV_kern_fmt1_StateOptRecData)valid->statetable.optdata;
+ (GXV_kern_fmt1_StateOptRecData)gxvalid->statetable.optdata;
o[0] = classTable;
@@ -245,7 +251,7 @@
l[2] = entryTable_length_p;
l[3] = &(optdata->valueTable_length);
- gxv_set_length_by_ushort_offset( o, l, buff, 4, table_size, valid );
+ gxv_set_length_by_ushort_offset( o, l, buff, 4, table_size, gxvalid );
}
@@ -259,25 +265,31 @@
GXV_StateTable_GlyphOffsetCPtr glyphOffset_p,
FT_Bytes table,
FT_Bytes limit,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
+#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 );
{
GXV_kern_fmt1_StateOptRecData vt_rec =
- (GXV_kern_fmt1_StateOptRecData)valid->statetable.optdata;
+ (GXV_kern_fmt1_StateOptRecData)gxvalid->statetable.optdata;
FT_Bytes p;
@@ -288,8 +300,10 @@
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 );
+#endif
}
}
@@ -297,7 +311,7 @@
static void
gxv_kern_subtable_fmt1_validate( FT_Bytes table,
FT_Bytes limit,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
FT_Bytes p = table;
GXV_kern_fmt1_StateOptRec vt_rec;
@@ -305,18 +319,18 @@
GXV_NAME_ENTER( "kern subtable format 1" );
- valid->statetable.optdata =
+ gxvalid->statetable.optdata =
&vt_rec;
- valid->statetable.optdata_load_func =
+ gxvalid->statetable.optdata_load_func =
gxv_kern_subtable_fmt1_valueTable_load;
- valid->statetable.subtable_setup_func =
+ gxvalid->statetable.subtable_setup_func =
gxv_kern_subtable_fmt1_subtable_setup;
- valid->statetable.entry_glyphoffset_fmt =
+ gxvalid->statetable.entry_glyphoffset_fmt =
GXV_GLYPHOFFSET_NONE;
- valid->statetable.entry_validate_func =
+ gxvalid->statetable.entry_validate_func =
gxv_kern_subtable_fmt1_entry_validate;
- gxv_StateTable_validate( p, limit, valid );
+ gxv_StateTable_validate( p, limit, gxvalid );
GXV_EXIT;
}
@@ -359,7 +373,7 @@
gxv_kern_subtable_fmt2_clstbl_validate( FT_Bytes table,
FT_Bytes limit,
GXV_kern_ClassSpec spec,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
const FT_String* tag = GXV_KERN_FMT2_DATA( class_tag[spec] );
GXV_odtect_Range odtect = GXV_KERN_FMT2_DATA( odtect );
@@ -377,13 +391,13 @@
GXV_TRACE(( " %s firstGlyph=%d, nGlyphs=%d\n",
tag, firstGlyph, nGlyphs ));
- gxv_glyphid_validate( firstGlyph, valid );
- gxv_glyphid_validate( (FT_UShort)( firstGlyph + nGlyphs - 1 ), valid );
+ gxv_glyphid_validate( firstGlyph, gxvalid );
+ gxv_glyphid_validate( (FT_UShort)( firstGlyph + nGlyphs - 1 ), gxvalid );
gxv_array_getlimits_ushort( p, p + ( 2 * nGlyphs ),
&( GXV_KERN_FMT2_DATA( offset_min[spec] ) ),
&( GXV_KERN_FMT2_DATA( offset_max[spec] ) ),
- valid );
+ gxvalid );
gxv_odtect_add_range( table, 2 * nGlyphs, tag, odtect );
@@ -394,7 +408,7 @@
static void
gxv_kern_subtable_fmt2_validate( FT_Bytes table,
FT_Bytes limit,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
GXV_ODTECT( 3, odtect );
GXV_kern_subtable_fmt2_DataRec fmt2_rec =
@@ -425,10 +439,10 @@
GXV_LIMIT_CHECK( GXV_KERN_FMT2_DATA( array ) );
gxv_kern_subtable_fmt2_clstbl_validate( table + leftOffsetTable, limit,
- GXV_KERN_CLS_L, valid );
+ GXV_KERN_CLS_L, gxvalid );
gxv_kern_subtable_fmt2_clstbl_validate( table + rightOffsetTable, limit,
- GXV_KERN_CLS_R, valid );
+ GXV_KERN_CLS_R, gxvalid );
if ( GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_L] ) +
GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_R] )
@@ -441,7 +455,7 @@
- GXV_KERN_FMT2_DATA( array ),
"array", odtect );
- gxv_odtect_validate( odtect, valid );
+ gxv_odtect_validate( odtect, gxvalid );
GXV_EXIT;
}
@@ -452,7 +466,7 @@
static void
gxv_kern_subtable_fmt3_validate( FT_Bytes table,
FT_Bytes limit,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
FT_Bytes p = table + GXV_KERN_SUBTABLE_HEADER_SIZE;
FT_UShort glyphCount;
@@ -471,14 +485,16 @@
rightClassCount = FT_NEXT_BYTE( p );
flags = FT_NEXT_BYTE( p );
- if ( valid->face->num_glyphs != glyphCount )
+ if ( gxvalid->face->num_glyphs != glyphCount )
{
GXV_TRACE(( "maxGID=%d, but glyphCount=%d\n",
- valid->face->num_glyphs, glyphCount ));
- if ( valid->root->level >= FT_VALIDATE_PARANOID )
- FT_INVALID_GLYPH_ID;
+ gxvalid->face->num_glyphs, glyphCount ));
+ 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]
*/
@@ -493,8 +509,8 @@
GXV_LIMIT_CHECK( glyphCount );
- gxv_array_getlimits_byte( p, p + glyphCount, &min, &max, valid );
- p += valid->subtable_length;
+ gxv_array_getlimits_byte( p, p + glyphCount, &min, &max, gxvalid );
+ p += gxvalid->subtable_length;
if ( leftClassCount < max )
FT_INVALID_DATA;
@@ -508,8 +524,8 @@
GXV_LIMIT_CHECK( glyphCount );
- gxv_array_getlimits_byte( p, p + glyphCount, &min, &max, valid );
- p += valid->subtable_length;
+ gxv_array_getlimits_byte( p, p + glyphCount, &min, &max, gxvalid );
+ p += gxvalid->subtable_length;
if ( rightClassCount < max )
FT_INVALID_DATA;
@@ -533,7 +549,7 @@
}
}
- valid->subtable_length = p - table;
+ gxvalid->subtable_length = p - table;
GXV_EXIT;
}
@@ -542,23 +558,27 @@
static FT_Bool
gxv_kern_coverage_new_apple_validate( FT_UShort coverage,
FT_UShort* format,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
/* new Apple-dialect */
+#ifdef GXV_LOAD_TRACE_VARS
FT_Bool kernVertical;
FT_Bool kernCrossStream;
FT_Bool kernVariation;
+#endif
- FT_UNUSED( valid );
+ FT_UNUSED( gxvalid );
/* 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 );
@@ -568,30 +588,34 @@
GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" ));
- return 1;
+ return TRUE;
}
static FT_Bool
gxv_kern_coverage_classic_apple_validate( FT_UShort coverage,
FT_UShort* format,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
/* 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;
+ if ( !( coverage & 0xFD00 ) && KERN_ALLOWS_MS( gxvalid ) )
+ 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 );
@@ -601,36 +625,40 @@
/* 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;
}
static FT_Bool
gxv_kern_coverage_classic_microsoft_validate( FT_UShort coverage,
FT_UShort* format,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
/* 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 );
+ FT_UNUSED( gxvalid );
/* 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 +671,7 @@
GXV_TRACE((
"kerning values in Microsoft format 2 subtable are ignored\n" ));
- return 1;
+ return TRUE;
}
@@ -658,7 +686,7 @@
static GXV_kern_Dialect
gxv_kern_coverage_validate( FT_UShort coverage,
FT_UShort* format,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
GXV_kern_Dialect result = KERN_DIALECT_UNKNOWN;
@@ -667,33 +695,33 @@
GXV_TRACE(( "interprete coverage 0x%04x by Apple style\n", coverage ));
- if ( KERN_IS_NEW( valid ) )
+ if ( KERN_IS_NEW( gxvalid ) )
{
if ( gxv_kern_coverage_new_apple_validate( coverage,
format,
- valid ) )
+ gxvalid ) )
{
result = KERN_DIALECT_APPLE;
goto Exit;
}
}
- if ( KERN_IS_CLASSIC( valid ) && KERN_ALLOWS_APPLE( valid ) )
+ if ( KERN_IS_CLASSIC( gxvalid ) && KERN_ALLOWS_APPLE( gxvalid ) )
{
if ( gxv_kern_coverage_classic_apple_validate( coverage,
format,
- valid ) )
+ gxvalid ) )
{
result = KERN_DIALECT_APPLE;
goto Exit;
}
}
- if ( KERN_IS_CLASSIC( valid ) && KERN_ALLOWS_MS( valid ) )
+ if ( KERN_IS_CLASSIC( gxvalid ) && KERN_ALLOWS_MS( gxvalid ) )
{
if ( gxv_kern_coverage_classic_microsoft_validate( coverage,
format,
- valid ) )
+ gxvalid ) )
{
result = KERN_DIALECT_MS;
goto Exit;
@@ -711,13 +739,17 @@
static void
gxv_kern_subtable_validate( FT_Bytes table,
FT_Bytes limit,
- GXV_Validator valid )
+ GXV_Validator gxvalid )
{
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 */
@@ -729,26 +761,38 @@
u16[1] = FT_NEXT_USHORT( p ); /* Apple: length_lo MS: length */
coverage = FT_NEXT_USHORT( p );
- switch ( gxv_kern_coverage_validate( coverage, &format, valid ) )
+ switch ( gxv_kern_coverage_validate( coverage, &format, gxvalid ) )
{
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 ) )
+ if ( KERN_IS_NEW( gxvalid ) )
{
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;
@@ -762,18 +806,18 @@
/* formats 1, 2, 3 require the position of the start of this subtable */
if ( format == 0 )
- gxv_kern_subtable_fmt0_validate( table, table + length, valid );
+ gxv_kern_subtable_fmt0_validate( table, table + length, gxvalid );
else if ( format == 1 )
- gxv_kern_subtable_fmt1_validate( table, table + length, valid );
+ gxv_kern_subtable_fmt1_validate( table, table + length, gxvalid );
else if ( format == 2 )
- gxv_kern_subtable_fmt2_validate( table, table + length, valid );
+ gxv_kern_subtable_fmt2_validate( table, table + length, gxvalid );
else if ( format == 3 )
- gxv_kern_subtable_fmt3_validate( table, table + length, valid );
+ gxv_kern_subtable_fmt3_validate( table, table + length, gxvalid );
else
FT_INVALID_DATA;
Exit:
- valid->subtable_length = length;
+ gxvalid->subtable_length = length;
GXV_EXIT;
}
@@ -793,8 +837,8 @@
GXV_kern_Dialect dialect_request,
FT_Validator ftvalid )
{
- GXV_ValidatorRec validrec;
- GXV_Validator valid = &validrec;
+ GXV_ValidatorRec gxvalidrec;
+ GXV_Validator gxvalid = &gxvalidrec;
GXV_kern_DataRec kernrec;
GXV_kern_Data kern = &kernrec;
@@ -806,13 +850,13 @@
FT_UInt i;
- valid->root = ftvalid;
- valid->table_data = kern;
- valid->face = face;
+ gxvalid->root = ftvalid;
+ gxvalid->table_data = kern;
+ gxvalid->face = face;
FT_TRACE3(( "validating `kern' table\n" ));
GXV_INIT;
- KERN_DIALECT( valid ) = dialect_request;
+ KERN_DIALECT( gxvalid ) = dialect_request;
GXV_LIMIT_CHECK( 2 );
GXV_KERN_DATA( version ) = (GXV_kern_Version)FT_NEXT_USHORT( p );
@@ -821,12 +865,12 @@
if ( 0x0001 < GXV_KERN_DATA( version ) )
FT_INVALID_FORMAT;
- else if ( KERN_IS_CLASSIC( valid ) )
+ else if ( KERN_IS_CLASSIC( gxvalid ) )
{
GXV_LIMIT_CHECK( 2 );
nTables = FT_NEXT_USHORT( p );
}
- else if ( KERN_IS_NEW( valid ) )
+ else if ( KERN_IS_NEW( gxvalid ) )
{
if ( classic_only )
FT_INVALID_FORMAT;
@@ -842,8 +886,8 @@
{
GXV_TRACE(( "validating subtable %d/%d\n", i, nTables ));
/* p should be 32bit-aligned? */
- gxv_kern_subtable_validate( p, 0, valid );
- p += valid->subtable_length;
+ gxv_kern_subtable_validate( p, 0, gxvalid );
+ p += gxvalid->subtable_length;
}
FT_TRACE4(( "\n" ));
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-06 22:29:07 +0000