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@ -16,9 +16,11 @@ |
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/***************************************************************************/ |
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/***************************************************************************/ |
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/* */ |
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/* gxvalid is derived from both gxlayout module and otvalid module. */ |
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/* Development of gxlayout was support of Information-technology Promotion */ |
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/* Agency(IPA), Japan. */ |
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/* Development of gxlayout is supported by the Information-technology */ |
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/* Promotion Agency(IPA), Japan. */ |
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/* */ |
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/***************************************************************************/ |
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@ -29,7 +31,6 @@ |
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#include FT_SERVICE_GX_VALIDATE_H |
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/*************************************************************************/ |
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/* */ |
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/* The macro FT_COMPONENT is used in trace mode. It is an implicit */ |
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@ -48,21 +49,23 @@ |
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/*************************************************************************/ |
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/*************************************************************************/ |
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typedef enum GXV_kern_Version_ |
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typedef enum GXV_kern_Version_ |
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{ |
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KERN_VERSION_CLASSIC = 0x0000, |
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KERN_VERSION_NEW = 0x0001 |
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} GXV_kern_Version; |
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typedef enum GXV_kern_Dialect_ |
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{ |
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KERN_DIALECT_MS = FT_VALIDATE_MS, |
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KERN_DIALECT_APPLE = FT_VALIDATE_APPLE, |
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KERN_DIALECT_ANY = FT_VALIDATE_CKERN |
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KERN_DIALECT_MS = FT_VALIDATE_MS, |
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KERN_DIALECT_APPLE = FT_VALIDATE_APPLE, |
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KERN_DIALECT_ANY = FT_VALIDATE_CKERN |
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} GXV_kern_Dialect; |
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typedef struct GXV_kern_DataRec_ |
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{ |
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GXV_kern_Version version; |
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@ -71,16 +74,22 @@ |
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} GXV_kern_DataRec, *GXV_kern_Data; |
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#define GXV_KERN_DATA( field ) GXV_TABLE_DATA( kern, field ) |
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#define KERN_IS_CLASSIC( valid ) ( KERN_VERSION_CLASSIC == GXV_KERN_DATA( version ) ) |
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#define KERN_IS_NEW( valid ) ( KERN_VERSION_NEW == GXV_KERN_DATA( version ) ) |
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#define GXV_KERN_DATA( field ) GXV_TABLE_DATA( kern, field ) |
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#define KERN_IS_CLASSIC( valid ) \ |
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( KERN_VERSION_CLASSIC == GXV_KERN_DATA( version ) ) |
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#define KERN_IS_NEW( valid ) \ |
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( KERN_VERSION_NEW == GXV_KERN_DATA( version ) ) |
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#define KERN_DIALECT( valid ) GXV_KERN_DATA( dialect_request ) |
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#define KERN_ALLOWS_MS( valid ) ( KERN_DIALECT( valid ) & KERN_DIALECT_MS ) |
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#define KERN_ALLOWS_APPLE( valid ) ( KERN_DIALECT( valid ) & KERN_DIALECT_APPLE ) |
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#define KERN_DIALECT( valid ) \ |
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GXV_KERN_DATA( dialect_request ) |
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#define KERN_ALLOWS_MS( valid ) \ |
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( KERN_DIALECT( valid ) & KERN_DIALECT_MS ) |
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#define KERN_ALLOWS_APPLE( valid ) \ |
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( KERN_DIALECT( valid ) & KERN_DIALECT_APPLE ) |
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#define GXV_KERN_HEADER_SIZE ( KERN_IS_NEW( valid ) ? 8 : 4 ) |
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#define GXV_KERN_HEADER_SIZE ( KERN_IS_NEW( valid ) ? 8 : 4 ) |
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#define GXV_KERN_SUBTABLE_HEADER_SIZE ( KERN_IS_NEW( valid ) ? 8 : 6 ) |
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@ -95,7 +104,6 @@ |
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/* ============================= format 0 ============================== */ |
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static void |
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gxv_kern_subtable_fmt0_validate( FT_Bytes table, |
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FT_Bytes limit, |
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@ -108,9 +116,9 @@ |
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FT_UShort i; |
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GXV_NAME_ENTER("kern subtable format0"); |
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GXV_NAME_ENTER( "kern subtable format0" ); |
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unitSize = ( 2 + 2 + 2 ); |
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unitSize = 2 + 2 + 2; |
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nPairs = 0; |
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/* nPairs, searchRange, entrySelector, rangeShift */ |
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@ -123,8 +131,10 @@ |
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FT_UShort gid_left; |
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FT_UShort gid_right; |
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FT_Short kernValue; |
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/* TODO: should be checked pairs are unique. */ |
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/* left */ |
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gid_left = FT_NEXT_USHORT( p ); |
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gxv_glyphid_validate( gid_left, valid ); |
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@ -160,6 +170,7 @@ |
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FT_Bytes p = table; |
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GXV_kern_fmt1_StateOptRecData optdata = valid->statetable.optdata; |
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GXV_LIMIT_CHECK( 2 ); |
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optdata->valueTable = FT_NEXT_USHORT( p ); |
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} |
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@ -181,6 +192,7 @@ |
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FT_UShort o[4]; |
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FT_UShort *l[4]; |
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FT_UShort buff[5]; |
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GXV_kern_fmt1_StateOptRecData optdata = valid->statetable.optdata; |
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@ -198,23 +210,28 @@ |
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/*
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* passed table & limit are of whole of StateTable, not included subtables. |
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* passed table & limit are of whole StateTable, not including subtables |
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*/ |
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static void |
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gxv_kern_subtable_fmt1_entry_validate( FT_Byte state, |
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FT_UShort flags, |
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GXV_StateTable_GlyphOffsetDesc glyphOffset, |
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FT_Bytes table, |
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FT_Bytes limit, |
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GXV_Validator valid ) |
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gxv_kern_subtable_fmt1_entry_validate( |
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FT_Byte state, |
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FT_UShort flags, |
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GXV_StateTable_GlyphOffsetDesc glyphOffset, |
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FT_Bytes table, |
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FT_Bytes limit, |
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GXV_Validator valid ) |
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{ |
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FT_UShort push; |
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FT_UShort dontAdvance; |
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FT_UShort valueOffset; |
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FT_UShort kernAction; |
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FT_UShort kernValue; |
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FT_UShort push; |
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FT_UShort dontAdvance; |
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FT_UShort valueOffset; |
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FT_UShort kernAction; |
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FT_UShort kernValue; |
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push = flags / 0x8000; |
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FT_UNUSED( state ); |
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FT_UNUSED( glyphOffset ); |
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push = flags / 0x8000U; |
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dontAdvance = ( flags & 0x4000 ) / 0x4000; |
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valueOffset = flags & 0x3FFF; |
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@ -222,6 +239,7 @@ |
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GXV_kern_fmt1_StateOptRecData vt_rec = valid->statetable.optdata; |
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FT_Bytes p; |
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if ( valueOffset < vt_rec->valueTable ) |
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FT_INVALID_OFFSET; |
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@ -240,28 +258,36 @@ |
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FT_Bytes limit, |
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GXV_Validator valid ) |
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{ |
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FT_Bytes p = table; |
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GXV_kern_fmt1_StateOptRec vt_rec; |
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FT_Bytes p = table; |
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GXV_kern_fmt1_StateOptRec vt_rec; |
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GXV_NAME_ENTER("kern subtable format1"); |
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valid->statetable.optdata = &vt_rec; |
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valid->statetable.optdata_load_func = gxv_kern_subtable_fmt1_valueTable_load; |
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valid->statetable.subtable_setup_func = gxv_kern_subtable_fmt1_subtable_setup; |
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valid->statetable.entry_glyphoffset_fmt = GXV_GLYPHOFFSET_NONE; |
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valid->statetable.entry_validate_func = gxv_kern_subtable_fmt1_entry_validate; |
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GXV_NAME_ENTER( "kern subtable format1" ); |
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valid->statetable.optdata = |
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&vt_rec; |
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valid->statetable.optdata_load_func = |
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gxv_kern_subtable_fmt1_valueTable_load; |
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valid->statetable.subtable_setup_func = |
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gxv_kern_subtable_fmt1_subtable_setup; |
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valid->statetable.entry_glyphoffset_fmt = |
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GXV_GLYPHOFFSET_NONE; |
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valid->statetable.entry_validate_func = |
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gxv_kern_subtable_fmt1_entry_validate; |
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gxv_StateTable_validate( p, limit, valid ); |
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GXV_EXIT; |
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} |
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/* ================ Data for Class-Based Subtables 2, 3 ================ */ |
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/* ================ Data for Class-Based Subtables 2, 3 ================ */ |
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typedef enum GXV_kern_ClassSpec_ |
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typedef enum GXV_kern_ClassSpec_ |
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{ |
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GXV_KERN_CLS_L = 0, |
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GXV_KERN_CLS_R |
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} GXV_kern_ClassSpec; |
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typedef struct GXV_kern_subtable_fmt2_DataRec_ |
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{ |
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FT_UShort rowWidth; |
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FT_UShort array; |
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FT_UShort offset_min[2]; |
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FT_UShort offset_max[2]; |
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FT_String* class_tag[2]; |
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FT_UShort rowWidth; |
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FT_UShort array; |
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FT_UShort offset_min[2]; |
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FT_UShort offset_max[2]; |
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const FT_String* class_tag[2]; |
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GXV_odtect_Range odtect; |
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} GXV_kern_subtable_fmt2_DataRec, *GXV_kern_subtable_fmt2_Data; |
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#define GXV_KERN_FMT2_DATA( field ) \ |
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(((GXV_kern_subtable_fmt2_DataRec *)(GXV_KERN_DATA( subtable_data )))-> field ) |
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/* -------------------------- utility functions ----------------------- */ |
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#define GXV_KERN_FMT2_DATA( field ) \ |
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( ( (GXV_kern_subtable_fmt2_DataRec *) \
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( GXV_KERN_DATA( subtable_data ) ) )->field ) |
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/* -------------------------- utility functions ----------------------- */ |
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static void |
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gxv_kern_subtable_fmt2_clstbl_validate( FT_Bytes table, |
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@ -292,7 +320,7 @@ |
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GXV_kern_ClassSpec spec, |
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GXV_Validator valid ) |
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{ |
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FT_String* tag = GXV_KERN_FMT2_DATA( class_tag[spec] ); |
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const FT_String* tag = GXV_KERN_FMT2_DATA( class_tag[spec] ); |
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GXV_odtect_Range odtect = GXV_KERN_FMT2_DATA( odtect ); |
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FT_Bytes p = table; |
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@ -300,26 +328,23 @@ |
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FT_UShort nGlyphs; |
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GXV_NAME_ENTER(( "kern format 2 classTable" )); |
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GXV_NAME_ENTER( "kern format 2 classTable" ); |
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GXV_LIMIT_CHECK( 2 + 2 ); |
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firstGlyph = FT_NEXT_USHORT( p ); |
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nGlyphs = FT_NEXT_USHORT( p ); |
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GXV_TRACE(( " %s firstGlyph=%d, nGlyphs=%d\n", tag, firstGlyph, nGlyphs )); |
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GXV_TRACE(( " %s firstGlyph=%d, nGlyphs=%d\n", |
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tag, firstGlyph, nGlyphs )); |
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gxv_glyphid_validate( firstGlyph, valid ); |
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gxv_glyphid_validate( firstGlyph + nGlyphs - 1, valid ); |
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gxv_array_getlimits_ushort( p, p + ( 2 * nGlyphs ), |
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&( GXV_KERN_FMT2_DATA( offset_min[spec] ) ), |
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&( GXV_KERN_FMT2_DATA( offset_max[spec] ) ), |
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valid ); |
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gxv_odtect_add_range( table, ( 2 * nGlyphs ), tag, odtect ); |
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gxv_odtect_add_range( table, 2 * nGlyphs, tag, odtect ); |
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GXV_EXIT; |
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} |
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@ -339,7 +364,7 @@ |
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FT_UShort rightOffsetTable; |
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GXV_NAME_ENTER("kern subtable format2"); |
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GXV_NAME_ENTER( "kern subtable format2" ); |
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GXV_ODTECT_INIT( odtect ); |
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fmt2_rec.odtect = odtect; |
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@ -358,20 +383,17 @@ |
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GXV_LIMIT_CHECK( rightOffsetTable ); |
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GXV_LIMIT_CHECK( GXV_KERN_FMT2_DATA( array ) ); |
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gxv_kern_subtable_fmt2_clstbl_validate( table + leftOffsetTable, limit, |
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GXV_KERN_CLS_L, valid ); |
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gxv_kern_subtable_fmt2_clstbl_validate( table + rightOffsetTable, limit, |
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GXV_KERN_CLS_R, valid ); |
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if ( GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_L] ) |
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+ GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_R] ) |
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< GXV_KERN_FMT2_DATA( array ) ) |
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if ( GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_L] ) + |
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GXV_KERN_FMT2_DATA( offset_min[GXV_KERN_CLS_R] ) |
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< GXV_KERN_FMT2_DATA( array ) ) |
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FT_INVALID_OFFSET; |
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gxv_odtect_add_range( table + GXV_KERN_FMT2_DATA( array ), |
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GXV_KERN_FMT2_DATA( offset_max[GXV_KERN_CLS_L] ) |
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+ GXV_KERN_FMT2_DATA( offset_max[GXV_KERN_CLS_R] ) |
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@ -386,7 +408,6 @@ |
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/* ============================= format 3 ============================== */ |
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static void |
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gxv_kern_subtable_fmt3_validate( FT_Bytes table, |
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FT_Bytes limit, |
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@ -400,7 +421,7 @@ |
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FT_Byte flags; |
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|
|
|
|
|
|
|
|
|
|
|
|
|
GXV_NAME_ENTER("kern subtable format3"); |
|
|
|
|
GXV_NAME_ENTER( "kern subtable format3" ); |
|
|
|
|
|
|
|
|
|
GXV_LIMIT_CHECK( 2 + 1 + 1 + 1 + 1 ); |
|
|
|
|
glyphCount = FT_NEXT_USHORT( p ); |
|
|
|
|
@ -409,21 +430,19 @@ |
|
|
|
|
rightClassCount = FT_NEXT_BYTE( p ); |
|
|
|
|
flags = FT_NEXT_BYTE( p ); |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
if ( valid->face->num_glyphs != glyphCount ) |
|
|
|
|
{ |
|
|
|
|
GXV_TRACE(( "maxGID=%d, but glyphCount=%d\n", valid->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; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Just skip kernValue[kernValueCount] |
|
|
|
|
* just skip kernValue[kernValueCount] |
|
|
|
|
*/ |
|
|
|
|
GXV_LIMIT_CHECK( 2 * kernValueCount ); |
|
|
|
|
p += ( 2 * kernValueCount ); |
|
|
|
|
|
|
|
|
|
p += 2 * kernValueCount; |
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* check leftClass[gid] < leftClassCount |
|
|
|
|
@ -431,6 +450,7 @@ |
|
|
|
|
{ |
|
|
|
|
FT_Byte min, max; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
GXV_LIMIT_CHECK( glyphCount ); |
|
|
|
|
gxv_array_getlimits_byte( p, p + glyphCount, &min, &max, valid ); |
|
|
|
|
p += valid->subtable_length; |
|
|
|
|
@ -439,13 +459,13 @@ |
|
|
|
|
FT_INVALID_DATA; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* check rightClass[gid] < rightClassCount |
|
|
|
|
*/ |
|
|
|
|
{ |
|
|
|
|
FT_Byte min, max; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
GXV_LIMIT_CHECK( glyphCount ); |
|
|
|
|
gxv_array_getlimits_byte( p, p + glyphCount, &min, &max, valid ); |
|
|
|
|
p += valid->subtable_length; |
|
|
|
|
@ -454,15 +474,16 @@ |
|
|
|
|
FT_INVALID_DATA; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* check kernIndex[i, j] < kernValueCount |
|
|
|
|
*/ |
|
|
|
|
{ |
|
|
|
|
FT_UShort i, j; |
|
|
|
|
for ( i = 0; i < leftClassCount; i ++ ) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
for ( i = 0; i < leftClassCount; i++ ) |
|
|
|
|
{ |
|
|
|
|
for ( j = 0; j < rightClassCount; j ++ ) |
|
|
|
|
for ( j = 0; j < rightClassCount; j++ ) |
|
|
|
|
{ |
|
|
|
|
GXV_LIMIT_CHECK( 1 ); |
|
|
|
|
if ( kernValueCount < FT_NEXT_BYTE( p ) ) |
|
|
|
|
@ -471,7 +492,7 @@ |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
valid->subtable_length = ( p - table ); |
|
|
|
|
valid->subtable_length = p - table; |
|
|
|
|
|
|
|
|
|
GXV_EXIT; |
|
|
|
|
} |
|
|
|
|
@ -490,8 +511,7 @@ |
|
|
|
|
|
|
|
|
|
/* reserved bits = 0 */ |
|
|
|
|
if ( coverage & 0x1FFC ) |
|
|
|
|
return FALSE; |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
|
|
|
|
|
kernVertical = ( coverage >> 15 ) & 1; |
|
|
|
|
kernCrossStream = ( coverage >> 14 ) & 1; |
|
|
|
|
@ -503,7 +523,8 @@ |
|
|
|
|
!kernVertical, kernCrossStream, kernVariation, *format )); |
|
|
|
|
|
|
|
|
|
GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" )); |
|
|
|
|
return TRUE; |
|
|
|
|
|
|
|
|
|
return 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -517,14 +538,13 @@ |
|
|
|
|
FT_Bool cross_stream; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* expected flags but don't check if MS-dialect is impossible */ |
|
|
|
|
/* check expected flags, but don't check if MS-dialect is impossible */ |
|
|
|
|
if ( !( coverage & 0xFD00 ) && KERN_ALLOWS_MS( valid ) ) |
|
|
|
|
return FALSE; |
|
|
|
|
return 0; |
|
|
|
|
|
|
|
|
|
/* reserved bits = 0 */ |
|
|
|
|
if ( coverage & 0x02FC ) |
|
|
|
|
return FALSE; |
|
|
|
|
|
|
|
|
|
return 0; |
|
|
|
|
|
|
|
|
|
horizontal = ( coverage >> 15 ) & 1; |
|
|
|
|
cross_stream = ( coverage >> 13 ) & 1; |
|
|
|
|
@ -534,12 +554,13 @@ |
|
|
|
|
"horizontal=%d, cross-stream=%d, format=%d\n", |
|
|
|
|
horizontal, cross_stream, *format )); |
|
|
|
|
|
|
|
|
|
/* format1 requires GX State Machine, too new for classic */ |
|
|
|
|
/* format 1 requires GX State Machine, too new for classic */ |
|
|
|
|
if ( *format == 1 ) |
|
|
|
|
return FALSE; |
|
|
|
|
return 0; |
|
|
|
|
|
|
|
|
|
GXV_TRACE(( "kerning values in Apple format subtable are ignored\n" )); |
|
|
|
|
return TRUE; |
|
|
|
|
|
|
|
|
|
return 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@ -554,9 +575,10 @@ |
|
|
|
|
FT_Bool cross_stream; |
|
|
|
|
FT_Bool override; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* reserved bits = 0 */ |
|
|
|
|
if ( coverage & 0xFDF0 ) |
|
|
|
|
return FALSE; |
|
|
|
|
return 0; |
|
|
|
|
|
|
|
|
|
horizontal = coverage & 1; |
|
|
|
|
minimum = ( coverage >> 1 ) & 1; |
|
|
|
|
@ -565,15 +587,18 @@ |
|
|
|
|
*format = ( coverage >> 8 ) & 0x0003; |
|
|
|
|
|
|
|
|
|
GXV_TRACE(( "classic Microsoft-dialect: " |
|
|
|
|
"horizontal=%d, minimum=%d, cross-stream=%d, override=%d, format=%d\n", |
|
|
|
|
horizontal, minimum, cross_stream, override, *format )); |
|
|
|
|
"horizontal=%d, minimum=%d, cross-stream=%d, " |
|
|
|
|
"override=%d, format=%d\n", |
|
|
|
|
horizontal, minimum, cross_stream, override, *format )); |
|
|
|
|
|
|
|
|
|
if ( *format == 2 ) |
|
|
|
|
GXV_TRACE(( "kerning values in Microsoft format 2 subtable are ignored\n" )); |
|
|
|
|
GXV_TRACE(( |
|
|
|
|
"kerning values in Microsoft format 2 subtable are ignored\n" )); |
|
|
|
|
|
|
|
|
|
return TRUE; |
|
|
|
|
return 1; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*************************************************************************/ |
|
|
|
|
/*************************************************************************/ |
|
|
|
|
/***** *****/ |
|
|
|
|
@ -582,16 +607,15 @@ |
|
|
|
|
/*************************************************************************/ |
|
|
|
|
/*************************************************************************/ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static GXV_kern_Dialect |
|
|
|
|
gxv_kern_coverage_validate ( FT_UShort coverage, |
|
|
|
|
FT_UShort* format, |
|
|
|
|
GXV_Validator valid ) |
|
|
|
|
gxv_kern_coverage_validate( FT_UShort coverage, |
|
|
|
|
FT_UShort* format, |
|
|
|
|
GXV_Validator valid ) |
|
|
|
|
{ |
|
|
|
|
FT_Int result = 0; |
|
|
|
|
FT_Int result = 0; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
GXV_NAME_ENTER(( "validate coverage" )); |
|
|
|
|
GXV_NAME_ENTER( "validate coverage" ); |
|
|
|
|
|
|
|
|
|
GXV_TRACE(( "interprete coverage 0x%04x by Apple style\n", coverage )); |
|
|
|
|
|
|
|
|
|
@ -635,6 +659,7 @@ |
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static void |
|
|
|
|
gxv_kern_subtable_validate( FT_Bytes table, |
|
|
|
|
FT_Bytes limit, |
|
|
|
|
@ -649,7 +674,7 @@ |
|
|
|
|
FT_UShort format = 255; /* subtable format */ |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
GXV_NAME_ENTER("kern subtable"); |
|
|
|
|
GXV_NAME_ENTER( "kern subtable" ); |
|
|
|
|
|
|
|
|
|
GXV_LIMIT_CHECK( 2 + 2 + 2 ); |
|
|
|
|
u16[0] = FT_NEXT_USHORT( p ); /* Apple: length_hi MS: version */ |
|
|
|
|
@ -658,34 +683,36 @@ |
|
|
|
|
|
|
|
|
|
switch ( gxv_kern_coverage_validate( coverage, &format, valid ) ) |
|
|
|
|
{ |
|
|
|
|
case KERN_DIALECT_MS: |
|
|
|
|
version = u16[0]; |
|
|
|
|
length = u16[1]; |
|
|
|
|
tupleIndex = 0; |
|
|
|
|
GXV_TRACE(( "Subtable version = %d\n", version )); |
|
|
|
|
GXV_TRACE(( "Subtable length = %d\n", length )); |
|
|
|
|
break; |
|
|
|
|
case KERN_DIALECT_APPLE: |
|
|
|
|
version = 0; |
|
|
|
|
length = ( u16[0] << 16 ) + u16[1]; |
|
|
|
|
tupleIndex = 0; |
|
|
|
|
GXV_TRACE(( "Subtable length = %d\n", length )); |
|
|
|
|
|
|
|
|
|
if ( KERN_IS_NEW( valid )) |
|
|
|
|
{ |
|
|
|
|
GXV_LIMIT_CHECK( 2 ); |
|
|
|
|
tupleIndex = FT_NEXT_USHORT( p ); |
|
|
|
|
GXV_TRACE(( "Subtable tupleIndex = %d\n", tupleIndex )); |
|
|
|
|
} |
|
|
|
|
break; |
|
|
|
|
default: |
|
|
|
|
length = u16[1]; |
|
|
|
|
GXV_TRACE(( "cannot detect subtable dialect, " |
|
|
|
|
"just skip %d byte\n", length )); |
|
|
|
|
goto Exit; |
|
|
|
|
case KERN_DIALECT_MS: |
|
|
|
|
version = u16[0]; |
|
|
|
|
length = u16[1]; |
|
|
|
|
tupleIndex = 0; |
|
|
|
|
GXV_TRACE(( "Subtable version = %d\n", version )); |
|
|
|
|
GXV_TRACE(( "Subtable length = %d\n", length )); |
|
|
|
|
break; |
|
|
|
|
|
|
|
|
|
case KERN_DIALECT_APPLE: |
|
|
|
|
version = 0; |
|
|
|
|
length = ( u16[0] << 16 ) + u16[1]; |
|
|
|
|
tupleIndex = 0; |
|
|
|
|
GXV_TRACE(( "Subtable length = %d\n", length )); |
|
|
|
|
|
|
|
|
|
if ( KERN_IS_NEW( valid ) ) |
|
|
|
|
{ |
|
|
|
|
GXV_LIMIT_CHECK( 2 ); |
|
|
|
|
tupleIndex = FT_NEXT_USHORT( p ); |
|
|
|
|
GXV_TRACE(( "Subtable tupleIndex = %d\n", tupleIndex )); |
|
|
|
|
} |
|
|
|
|
break; |
|
|
|
|
|
|
|
|
|
default: |
|
|
|
|
length = u16[1]; |
|
|
|
|
GXV_TRACE(( "cannot detect subtable dialect, " |
|
|
|
|
"just skip %d byte\n", length )); |
|
|
|
|
goto Exit; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/* fmt1, 2, 3 requires the position of the start of this subtable */ |
|
|
|
|
/* 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 ); |
|
|
|
|
else if ( format == 1 ) |
|
|
|
|
@ -735,13 +762,14 @@ |
|
|
|
|
valid->table_data = kern; |
|
|
|
|
valid->face = face; |
|
|
|
|
|
|
|
|
|
FT_TRACE3(( "validation kern table\n" )); |
|
|
|
|
FT_TRACE3(( "validating `kern' table\n" )); |
|
|
|
|
GXV_INIT; |
|
|
|
|
KERN_DIALECT( valid ) = dialect_request; |
|
|
|
|
|
|
|
|
|
GXV_LIMIT_CHECK( 2 ); |
|
|
|
|
GXV_KERN_DATA( version ) = FT_NEXT_USHORT( p ); |
|
|
|
|
GXV_TRACE(( "version 0x%04x (higher 16bit)\n", GXV_KERN_DATA( version ) )); |
|
|
|
|
GXV_TRACE(( "version 0x%04x (higher 16bit)\n", |
|
|
|
|
GXV_KERN_DATA( version ) )); |
|
|
|
|
|
|
|
|
|
if ( 0x0001 < GXV_KERN_DATA( version ) ) |
|
|
|
|
FT_INVALID_FORMAT; |
|
|
|
|
@ -762,7 +790,6 @@ |
|
|
|
|
nTables = FT_NEXT_ULONG( p ); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
for ( i = 0; i < nTables; i++ ) |
|
|
|
|
{ |
|
|
|
|
GXV_TRACE(( "validate subtable %d/%d\n", i, nTables )); |
|
|
|
|
@ -790,7 +817,7 @@ |
|
|
|
|
FT_Int dialect_flags, |
|
|
|
|
FT_Validator ftvalid ) |
|
|
|
|
{ |
|
|
|
|
GXV_kern_Dialect dialect_request; |
|
|
|
|
GXV_kern_Dialect dialect_request; |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
dialect_request = dialect_flags; |
|
|
|
|
|
Werner Lemberg
20 years ago