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-rw-r--r--Build/source/libs/libttf/extend/ftxgdef.c1127
1 files changed, 0 insertions, 1127 deletions
diff --git a/Build/source/libs/libttf/extend/ftxgdef.c b/Build/source/libs/libttf/extend/ftxgdef.c
deleted file mode 100644
index a4be21ecc90..00000000000
--- a/Build/source/libs/libttf/extend/ftxgdef.c
+++ /dev/null
@@ -1,1127 +0,0 @@
-/*******************************************************************
- *
- * ftxgdef.c
- *
- * TrueType Open GDEF table support.
- *
- * Copyright 1996-2000 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
- *
- * This file is part of the FreeType project, and may only be used
- * modified and distributed under the terms of the FreeType project
- * license, LICENSE.TXT. By continuing to use, modify, or distribute
- * this file you indicate that you have read the license and
- * understand and accept it fully.
- *
- ******************************************************************/
-
-#include "tttypes.h"
-#include "tttags.h"
-#include "ttload.h"
-#include "ttextend.h"
-#include "ttmemory.h"
-#include "ttfile.h"
-
-#include "ftxopen.h"
-#include "ftxopenf.h"
-
-
-#define GDEF_ID Build_Extension_ID( 'G', 'D', 'E', 'F' )
-
-
- static TT_Error Load_AttachList( TTO_AttachList* al,
- PFace input );
- static TT_Error Load_LigCaretList( TTO_LigCaretList* lcl,
- PFace input );
-
- static void Free_AttachList( TTO_AttachList* al );
- static void Free_LigCaretList( TTO_LigCaretList* lcl );
-
- static void Free_NewGlyphClasses( TTO_GDEFHeader* gdef );
-
-
-
- /**********************
- * Extension Functions
- **********************/
-
-
- static TT_Error GDEF_Create( void* ext,
- PFace face )
- {
- DEFINE_LOAD_LOCALS( face->stream );
-
- TTO_GDEFHeader* gdef = (TTO_GDEFHeader*)ext;
- Long table;
-
-
- /* by convention */
-
- if ( !gdef )
- return TT_Err_Ok;
-
- /* a null offset indicates that there is no GDEF table */
-
- gdef->offset = 0;
-
- /* we store the start offset and the size of the subtable */
-
- table = TT_LookUp_Table( face, TTAG_GDEF );
- if ( table < 0 )
- return TT_Err_Ok; /* The table is optional */
-
- if ( FILE_Seek( face->dirTables[table].Offset ) ||
- ACCESS_Frame( 4L ) )
- return error;
-
- gdef->offset = FILE_Pos() - 4L; /* undo ACCESS_Frame() */
- gdef->Version = GET_ULong();
-
- FORGET_Frame();
-
- gdef->loaded = FALSE;
-
- return TT_Err_Ok;
- }
-
-
- static TT_Error GDEF_Destroy( void* ext,
- PFace face )
- {
- TTO_GDEFHeader* gdef = (TTO_GDEFHeader*)ext;
-
-
- /* by convention */
-
- if ( !gdef )
- return TT_Err_Ok;
-
- if ( gdef->loaded )
- {
- Free_LigCaretList( &gdef->LigCaretList );
- Free_AttachList( &gdef->AttachList );
- Free_ClassDefinition( &gdef->GlyphClassDef );
- Free_ClassDefinition( &gdef->MarkAttachClassDef );
-
- Free_NewGlyphClasses( gdef );
- }
-
- return TT_Err_Ok;
- }
-
-
- EXPORT_FUNC
- TT_Error TT_Init_GDEF_Extension( TT_Engine engine )
- {
- PEngine_Instance _engine = HANDLE_Engine( engine );
-
-
- if ( !_engine )
- return TT_Err_Invalid_Engine;
-
- return TT_Register_Extension( _engine,
- GDEF_ID,
- sizeof ( TTO_GDEFHeader ),
- GDEF_Create,
- GDEF_Destroy );
- }
-
-
- EXPORT_FUNC
- TT_Error TT_Load_GDEF_Table( TT_Face face,
- TTO_GDEFHeader* retptr )
- {
- ULong cur_offset, new_offset, base_offset;
-
- TT_Error error;
- TT_Stream stream;
- TTO_GDEFHeader* gdef;
-
- PFace faze = HANDLE_Face( face );
-
-
- if ( !retptr )
- return TT_Err_Invalid_Argument;
-
- if ( !faze )
- return TT_Err_Invalid_Face_Handle;
-
- error = TT_Extension_Get( faze, GDEF_ID, (void**)&gdef );
- if ( error )
- return error;
-
- if ( gdef->offset == 0 )
- return TT_Err_Table_Missing; /* no GDEF table; nothing to do */
-
- /* now access stream */
-
- if ( USE_Stream( faze->stream, stream ) )
- return error;
-
- base_offset = gdef->offset;
-
- /* skip version */
-
- if ( FILE_Seek( base_offset + 4L ) ||
- ACCESS_Frame( 2L ) )
- return error;
-
- new_offset = GET_UShort();
-
- FORGET_Frame();
-
- /* all GDEF subtables are optional */
-
- if ( new_offset )
- {
- new_offset += base_offset;
-
- /* only classes 1-4 are allowed here */
-
- cur_offset = FILE_Pos();
- if ( FILE_Seek( new_offset ) ||
- ( error = Load_ClassDefinition( &gdef->GlyphClassDef, 5,
- faze ) ) != TT_Err_Ok )
- return error;
- (void)FILE_Seek( cur_offset );
- }
- else
- gdef->GlyphClassDef.loaded = FALSE;
-
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- new_offset = GET_UShort();
-
- FORGET_Frame();
-
- if ( new_offset )
- {
- new_offset += base_offset;
-
- cur_offset = FILE_Pos();
- if ( FILE_Seek( new_offset ) ||
- ( error = Load_AttachList( &gdef->AttachList,
- faze ) ) != TT_Err_Ok )
- goto Fail1;
- (void)FILE_Seek( cur_offset );
- }
- else
- gdef->AttachList.loaded = FALSE;
-
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- new_offset = GET_UShort();
-
- FORGET_Frame();
-
- if ( new_offset )
- {
- new_offset += base_offset;
-
- cur_offset = FILE_Pos();
- if ( FILE_Seek( new_offset ) ||
- ( error = Load_LigCaretList( &gdef->LigCaretList,
- faze ) ) != TT_Err_Ok )
- goto Fail2;
- (void)FILE_Seek( cur_offset );
- }
- else
- gdef->LigCaretList.loaded = FALSE;
-
- /* OpenType 1.2 has introduced the `MarkAttachClassDef' field. We
- first have to scan the LookupFlag values to find out whether we
- must load it or not. Here we only store the current file offset. */
-
- gdef->MarkAttachClassDef_offset = FILE_Pos();
- gdef->MarkAttachClassDef.loaded = FALSE;
-
- gdef->LastGlyph = 0;
- gdef->NewGlyphClasses = NULL;
- gdef->loaded = TRUE;
-
- *retptr = *gdef;
- DONE_Stream( stream );
-
- return TT_Err_Ok;
-
- Fail2:
- Free_AttachList( &gdef->AttachList );
-
- Fail1:
- Free_ClassDefinition( &gdef->GlyphClassDef );
-
- /* release stream */
-
- DONE_Stream( stream );
-
- return error;
- }
-
-
-
- /*******************************
- * AttachList related functions
- *******************************/
-
-
- /* AttachPoint */
-
- static TT_Error Load_AttachPoint( TTO_AttachPoint* ap,
- PFace input )
- {
- DEFINE_LOAD_LOCALS( input->stream );
-
- UShort n, count;
- UShort* pi;
-
-
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- count = ap->PointCount = GET_UShort();
-
- FORGET_Frame();
-
- ap->PointIndex = NULL;
-
- if ( count )
- {
- if ( ALLOC_ARRAY( ap->PointIndex, count, UShort ) )
- return error;
-
- pi = ap->PointIndex;
-
- if ( ACCESS_Frame( count * 2L ) )
- {
- FREE( pi );
- return error;
- }
-
- for ( n = 0; n < count; n++ )
- pi[n] = GET_UShort();
-
- FORGET_Frame();
- }
-
- return TT_Err_Ok;
- }
-
-
- static void Free_AttachPoint( TTO_AttachPoint* ap )
- {
- FREE( ap->PointIndex );
- }
-
-
- /* AttachList */
-
- static TT_Error Load_AttachList( TTO_AttachList* al,
- PFace input )
- {
- DEFINE_LOAD_LOCALS( input->stream );
-
- UShort n, count;
- ULong cur_offset, new_offset, base_offset;
-
- TTO_AttachPoint* ap;
-
-
- base_offset = FILE_Pos();
-
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- new_offset = GET_UShort() + base_offset;
-
- FORGET_Frame();
-
- cur_offset = FILE_Pos();
- if ( FILE_Seek( new_offset ) ||
- ( error = Load_Coverage( &al->Coverage, input ) ) != TT_Err_Ok )
- return error;
- (void)FILE_Seek( cur_offset );
-
- if ( ACCESS_Frame( 2L ) )
- goto Fail2;
-
- count = al->GlyphCount = GET_UShort();
-
- FORGET_Frame();
-
- al->AttachPoint = NULL;
-
- if ( ALLOC_ARRAY( al->AttachPoint, count, TTO_AttachPoint ) )
- goto Fail2;
-
- ap = al->AttachPoint;
-
- for ( n = 0; n < count; n++ )
- {
- if ( ACCESS_Frame( 2L ) )
- goto Fail1;
-
- new_offset = GET_UShort() + base_offset;
-
- FORGET_Frame();
-
- cur_offset = FILE_Pos();
- if ( FILE_Seek( new_offset ) ||
- ( error = Load_AttachPoint( &ap[n], input ) ) != TT_Err_Ok )
- goto Fail1;
- (void)FILE_Seek( cur_offset );
- }
-
- al->loaded = TRUE;
-
- return TT_Err_Ok;
-
- Fail1:
- for ( n = 0; n < count; n++ )
- Free_AttachPoint( &ap[n] );
-
- FREE( ap );
-
- Fail2:
- Free_Coverage( &al->Coverage );
- return error;
- }
-
-
- static void Free_AttachList( TTO_AttachList* al )
- {
- UShort n, count;
-
- TTO_AttachPoint* ap;
-
-
- if ( !al->loaded )
- return;
-
- if ( al->AttachPoint )
- {
- count = al->GlyphCount;
- ap = al->AttachPoint;
-
- for ( n = 0; n < count; n++ )
- Free_AttachPoint( &ap[n] );
-
- FREE( ap );
- }
-
- Free_Coverage( &al->Coverage );
- }
-
-
-
- /*********************************
- * LigCaretList related functions
- *********************************/
-
-
- /* CaretValueFormat1 */
- /* CaretValueFormat2 */
- /* CaretValueFormat3 */
- /* CaretValueFormat4 */
-
- static TT_Error Load_CaretValue( TTO_CaretValue* cv,
- PFace input )
- {
- DEFINE_LOAD_LOCALS( input->stream );
-
- ULong cur_offset, new_offset, base_offset;
-
-
- base_offset = FILE_Pos();
-
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- cv->CaretValueFormat = GET_UShort();
-
- FORGET_Frame();
-
- switch ( cv->CaretValueFormat )
- {
- case 1:
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- cv->cvf.cvf1.Coordinate = GET_Short();
-
- FORGET_Frame();
-
- break;
-
- case 2:
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- cv->cvf.cvf2.CaretValuePoint = GET_UShort();
-
- FORGET_Frame();
-
- break;
-
- case 3:
- if ( ACCESS_Frame( 4L ) )
- return error;
-
- cv->cvf.cvf3.Coordinate = GET_Short();
-
- new_offset = GET_UShort() + base_offset;
-
- FORGET_Frame();
-
- cur_offset = FILE_Pos();
- if ( FILE_Seek( new_offset ) ||
- ( error = Load_Device( &cv->cvf.cvf3.Device,
- input ) ) != TT_Err_Ok )
- return error;
- (void)FILE_Seek( cur_offset );
-
- break;
-
- case 4:
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- cv->cvf.cvf4.IdCaretValue = GET_UShort();
-
- FORGET_Frame();
- break;
-
- default:
- return TTO_Err_Invalid_GDEF_SubTable_Format;
- }
-
- return TT_Err_Ok;
- }
-
-
- static void Free_CaretValue( TTO_CaretValue* cv )
- {
- if ( cv->CaretValueFormat == 3 )
- Free_Device( &cv->cvf.cvf3.Device );
- }
-
-
- /* LigGlyph */
-
- static TT_Error Load_LigGlyph( TTO_LigGlyph* lg,
- PFace input )
- {
- DEFINE_LOAD_LOCALS( input->stream );
-
- UShort n, count;
- ULong cur_offset, new_offset, base_offset;
-
- TTO_CaretValue* cv;
-
-
- base_offset = FILE_Pos();
-
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- count = lg->CaretCount = GET_UShort();
-
- FORGET_Frame();
-
- lg->CaretValue = NULL;
-
- if ( ALLOC_ARRAY( lg->CaretValue, count, TTO_CaretValue ) )
- return error;
-
- cv = lg->CaretValue;
-
- for ( n = 0; n < count; n++ )
- {
- if ( ACCESS_Frame( 2L ) )
- goto Fail;
-
- new_offset = GET_UShort() + base_offset;
-
- FORGET_Frame();
-
- cur_offset = FILE_Pos();
- if ( FILE_Seek( new_offset ) ||
- ( error = Load_CaretValue( &cv[n], input ) ) != TT_Err_Ok )
- goto Fail;
- (void)FILE_Seek( cur_offset );
- }
-
- return TT_Err_Ok;
-
- Fail:
- for ( n = 0; n < count; n++ )
- Free_CaretValue( &cv[n] );
-
- FREE( cv );
- return error;
- }
-
-
- static void Free_LigGlyph( TTO_LigGlyph* lg )
- {
- UShort n, count;
-
- TTO_CaretValue* cv;
-
-
- if ( lg->CaretValue )
- {
- count = lg->CaretCount;
- cv = lg->CaretValue;
-
- for ( n = 0; n < count; n++ )
- Free_CaretValue( &cv[n] );
-
- FREE( cv );
- }
- }
-
-
- /* LigCaretList */
-
- static TT_Error Load_LigCaretList( TTO_LigCaretList* lcl,
- PFace input )
- {
- DEFINE_LOAD_LOCALS( input->stream );
-
- UShort n, count;
- ULong cur_offset, new_offset, base_offset;
-
- TTO_LigGlyph* lg;
-
-
- base_offset = FILE_Pos();
-
- if ( ACCESS_Frame( 2L ) )
- return error;
-
- new_offset = GET_UShort() + base_offset;
-
- FORGET_Frame();
-
- cur_offset = FILE_Pos();
- if ( FILE_Seek( new_offset ) ||
- ( error = Load_Coverage( &lcl->Coverage, input ) ) != TT_Err_Ok )
- return error;
- (void)FILE_Seek( cur_offset );
-
- if ( ACCESS_Frame( 2L ) )
- goto Fail2;
-
- count = lcl->LigGlyphCount = GET_UShort();
-
- FORGET_Frame();
-
- lcl->LigGlyph = NULL;
-
- if ( ALLOC_ARRAY( lcl->LigGlyph, count, TTO_LigGlyph ) )
- goto Fail2;
-
- lg = lcl->LigGlyph;
-
- for ( n = 0; n < count; n++ )
- {
- if ( ACCESS_Frame( 2L ) )
- goto Fail1;
-
- new_offset = GET_UShort() + base_offset;
-
- FORGET_Frame();
-
- cur_offset = FILE_Pos();
- if ( FILE_Seek( new_offset ) ||
- ( error = Load_LigGlyph( &lg[n], input ) ) != TT_Err_Ok )
- goto Fail1;
- (void)FILE_Seek( cur_offset );
- }
-
- lcl->loaded = TRUE;
-
- return TT_Err_Ok;
-
- Fail1:
- for ( n = 0; n < count; n++ )
- Free_LigGlyph( &lg[n] );
-
- FREE( lg );
-
- Fail2:
- Free_Coverage( &lcl->Coverage );
- return error;
- }
-
-
- static void Free_LigCaretList( TTO_LigCaretList* lcl )
- {
- UShort n, count;
-
- TTO_LigGlyph* lg;
-
-
- if ( !lcl->loaded )
- return;
-
- if ( lcl->LigGlyph )
- {
- count = lcl->LigGlyphCount;
- lg = lcl->LigGlyph;
-
- for ( n = 0; n < count; n++ )
- Free_LigGlyph( &lg[n] );
-
- FREE( lg );
- }
-
- Free_Coverage( &lcl->Coverage );
- }
-
-
-
- /***********
- * GDEF API
- ***********/
-
-
- static UShort Get_New_Class( TTO_GDEFHeader* gdef,
- UShort glyphID,
- UShort index )
- {
- UShort glyph_index, array_index;
- UShort byte, bits;
-
- TTO_ClassRangeRecord* gcrr;
- UShort** ngc;
-
-
- if ( glyphID >= gdef->LastGlyph )
- return 0;
-
- gcrr = gdef->GlyphClassDef.cd.cd2.ClassRangeRecord;
- ngc = gdef->NewGlyphClasses;
-
- if ( glyphID < gcrr[index].Start )
- {
- array_index = 0;
- if ( index == 0 )
- glyph_index = glyphID;
- else
- glyph_index = glyphID - gcrr[index - 1].End - 1;
- }
- else
- {
- array_index = index + 1;
- glyph_index = glyphID - gcrr[index].End - 1;
- }
-
- byte = ngc[array_index][glyph_index / 4 + 1];
- bits = byte >> ( 16 - ( glyph_index % 4 + 1 ) * 4 );
-
- return bits & 0x000F;
- }
-
-
- EXPORT_FUNC
- TT_Error TT_GDEF_Get_Glyph_Property( TTO_GDEFHeader* gdef,
- TT_UShort glyphID,
- TT_UShort* property )
- {
- UShort class, index;
-
- TT_Error error;
-
-
- if ( !gdef || !property )
- return TT_Err_Invalid_Argument;
-
- /* first, we check for mark attach classes */
-
- if ( gdef->MarkAttachClassDef.loaded )
- {
- error = Get_Class( &gdef->MarkAttachClassDef, glyphID, &class, &index );
- if ( error && error != TTO_Err_Not_Covered )
- return error;
- if ( !error )
- {
- *property = class << 8;
- return TT_Err_Ok;
- }
- }
-
- error = Get_Class( &gdef->GlyphClassDef, glyphID, &class, &index );
- if ( error && error != TTO_Err_Not_Covered )
- return error;
-
- /* if we have a constructed class table, check whether additional
- values have been assigned */
-
- if ( error == TTO_Err_Not_Covered && gdef->NewGlyphClasses )
- class = Get_New_Class( gdef, glyphID, index );
-
- switch ( class )
- {
- case UNCLASSIFIED_GLYPH:
- *property = 0;
- break;
-
- case SIMPLE_GLYPH:
- *property = TTO_BASE_GLYPH;
- break;
-
- case LIGATURE_GLYPH:
- *property = TTO_LIGATURE;
- break;
-
- case MARK_GLYPH:
- *property = TTO_MARK;
- break;
-
- case COMPONENT_GLYPH:
- *property = TTO_COMPONENT;
- break;
- }
-
- return TT_Err_Ok;
- }
-
-
- static TT_Error Make_ClassRange( TTO_ClassDefinition* cd,
- UShort start,
- UShort end,
- UShort class )
- {
- TT_Error error;
- UShort index;
-
- TTO_ClassDefFormat2* cdf2;
- TTO_ClassRangeRecord* crr;
-
-
- cdf2 = &cd->cd.cd2;
-
- cdf2->ClassRangeCount++;
-
- if ( REALLOC_ARRAY( cdf2->ClassRangeRecord, cdf2->ClassRangeCount,
- TTO_ClassRangeRecord ) )
- return error;
-
- crr = cdf2->ClassRangeRecord;
- index = cdf2->ClassRangeCount - 1;
-
- crr[index].Start = start;
- crr[index].End = end;
- crr[index].Class = class;
-
- cd->Defined[class] = TRUE;
-
- return TT_Err_Ok;
- }
-
-
- EXPORT_FUNC
- TT_Error TT_GDEF_Build_ClassDefinition( TTO_GDEFHeader* gdef,
- TT_UShort num_glyphs,
- TT_UShort glyph_count,
- TT_UShort* glyph_array,
- TT_UShort* class_array )
- {
- UShort start, curr_glyph, curr_class;
- UShort n, count;
- TT_Error error;
-
- TTO_ClassDefinition* gcd;
- TTO_ClassRangeRecord* gcrr;
- UShort** ngc;
-
-
- if ( !gdef || !glyph_array || !class_array )
- return TT_Err_Invalid_Argument;
-
- gcd = &gdef->GlyphClassDef;
-
- /* We build a format 2 table */
-
- gcd->ClassFormat = 2;
-
- /* A GlyphClassDef table contains at most 5 different class values */
-
- if ( ALLOC_ARRAY( gcd->Defined, 5, Bool ) )
- return error;
-
- gcd->cd.cd2.ClassRangeCount = 0;
- gcd->cd.cd2.ClassRangeRecord = NULL;
-
- start = glyph_array[0];
- curr_class = class_array[0];
- curr_glyph = start;
-
- if ( curr_class >= 5 )
- {
- error = TT_Err_Invalid_Argument;
- goto Fail4;
- }
-
- glyph_count--;
-
- for ( n = 0; n <= glyph_count; n++ )
- {
- if ( curr_glyph == glyph_array[n] && curr_class == class_array[n] )
- {
- if ( n == glyph_count )
- {
- if ( ( error = Make_ClassRange( gcd, start,
- curr_glyph,
- curr_class ) ) != TT_Err_Ok )
- goto Fail3;
- }
- else
- {
- if ( curr_glyph == 0xFFFF )
- {
- error = TT_Err_Invalid_Argument;
- goto Fail3;
- }
- else
- curr_glyph++;
- }
- }
- else
- {
- if ( ( error = Make_ClassRange( gcd, start,
- curr_glyph - 1,
- curr_class ) ) != TT_Err_Ok )
- goto Fail3;
-
- if ( curr_glyph > glyph_array[n] )
- {
- error = TT_Err_Invalid_Argument;
- goto Fail3;
- }
-
- start = glyph_array[n];
- curr_class = class_array[n];
- curr_glyph = start;
-
- if ( curr_class >= 5 )
- {
- error = TT_Err_Invalid_Argument;
- goto Fail3;
- }
-
- if ( n == glyph_count )
- {
- if ( ( error = Make_ClassRange( gcd, start,
- curr_glyph,
- curr_class ) ) != TT_Err_Ok )
- goto Fail3;
- }
- else
- {
- if ( curr_glyph == 0xFFFF )
- {
- error = TT_Err_Invalid_Argument;
- goto Fail3;
- }
- else
- curr_glyph++;
- }
- }
- }
-
- /* now prepare the arrays for class values assigned during the lookup
- process */
-
- if ( ALLOC_ARRAY( gdef->NewGlyphClasses,
- gcd->cd.cd2.ClassRangeCount + 1, UShort* ) )
- goto Fail2;
-
- count = gcd->cd.cd2.ClassRangeCount;
- gcrr = gcd->cd.cd2.ClassRangeRecord;
- ngc = gdef->NewGlyphClasses;
-
- /* We allocate arrays for all glyphs not covered by the class range
- records. Each element holds four class values. */
-
- if ( gcrr[0].Start )
- {
- if ( ALLOC_ARRAY( ngc[0], gcrr[0].Start / 4 + 1, UShort ) )
- goto Fail1;
- }
-
- for ( n = 1; n < count; n++ )
- {
- if ( gcrr[n].Start - gcrr[n - 1].End > 1 )
- if ( ALLOC_ARRAY( ngc[n],
- ( gcrr[n].Start - gcrr[n - 1].End - 1 ) / 4 + 1,
- UShort ) )
- goto Fail1;
- }
-
- if ( gcrr[count - 1].End != num_glyphs - 1 )
- {
- if ( ALLOC_ARRAY( ngc[count],
- ( num_glyphs - gcrr[count - 1].End - 1 ) / 4 + 1,
- UShort ) )
- goto Fail1;
- }
-
- gdef->LastGlyph = num_glyphs - 1;
-
- gdef->MarkAttachClassDef_offset = 0L;
- gdef->MarkAttachClassDef.loaded = FALSE;
-
- return TT_Err_Ok;
-
- Fail1:
- for ( n = 0; n < count; n++ )
- FREE( ngc[n] );
-
- Fail2:
- FREE( gdef->NewGlyphClasses );
-
- Fail3:
- FREE( gcd->cd.cd2.ClassRangeRecord );
-
- Fail4:
- FREE( gcd->Defined );
- return error;
- }
-
-
- static void Free_NewGlyphClasses( TTO_GDEFHeader* gdef )
- {
- UShort** ngc;
- UShort n, count;
-
-
- if ( gdef->NewGlyphClasses )
- {
- count = gdef->GlyphClassDef.cd.cd2.ClassRangeCount + 1;
- ngc = gdef->NewGlyphClasses;
-
- for ( n = 0; n < count; n++ )
- FREE( ngc[n] );
-
- FREE( ngc );
- }
- }
-
-
- TT_Error Add_Glyph_Property( TTO_GDEFHeader* gdef,
- UShort glyphID,
- UShort property )
- {
- TT_Error error;
- UShort class, new_class, index;
- UShort byte, bits, mask;
- UShort array_index, glyph_index;
-
- TTO_ClassRangeRecord* gcrr;
- UShort** ngc;
-
-
- error = Get_Class( &gdef->GlyphClassDef, glyphID, &class, &index );
- if ( error && error != TTO_Err_Not_Covered )
- return error;
-
- /* we don't accept glyphs covered in `GlyphClassDef' */
-
- if ( !error )
- return TTO_Err_Not_Covered;
-
- switch ( property )
- {
- case 0:
- new_class = UNCLASSIFIED_GLYPH;
- break;
-
- case TTO_BASE_GLYPH:
- new_class = SIMPLE_GLYPH;
- break;
-
- case TTO_LIGATURE:
- new_class = LIGATURE_GLYPH;
- break;
-
- case TTO_MARK:
- new_class = MARK_GLYPH;
- break;
-
- case TTO_COMPONENT:
- new_class = COMPONENT_GLYPH;
- break;
-
- default:
- return TT_Err_Invalid_Argument;
- }
-
- gcrr = gdef->GlyphClassDef.cd.cd2.ClassRangeRecord;
- ngc = gdef->NewGlyphClasses;
-
- if ( glyphID < gcrr[index].Start )
- {
- array_index = 0;
- if ( index == 0 )
- glyph_index = glyphID;
- else
- glyph_index = glyphID - gcrr[index - 1].End - 1;
- }
- else
- {
- array_index = index + 1;
- glyph_index = glyphID - gcrr[index].End - 1;
- }
-
- byte = ngc[array_index][glyph_index / 4 + 1];
- bits = byte >> ( 16 - ( glyph_index % 4 + 1 ) * 4 );
- class = bits & 0x000F;
-
- /* we don't overwrite existing entries */
-
- if ( !class )
- {
- bits = new_class << ( 16 - ( glyph_index % 4 + 1 ) * 4 );
- mask = ~( 0x000F << ( 16 - ( glyph_index % 4 + 1 ) * 4 ) );
-
- ngc[array_index][glyph_index / 4 + 1] &= mask;
- ngc[array_index][glyph_index / 4 + 1] |= bits;
- }
-
- return TT_Err_Ok;
- }
-
-
- TT_Error Check_Property( TTO_GDEFHeader* gdef,
- UShort index,
- UShort flags,
- UShort* property )
- {
- TT_Error error;
-
-
- if ( gdef )
- {
- error = TT_GDEF_Get_Glyph_Property( gdef, index, property );
- if ( error )
- return error;
-
- /* This is OpenType 1.2 */
-
- if ( flags & IGNORE_SPECIAL_MARKS )
- if ( (flags & 0xFF00) != *property )
- return TTO_Err_Not_Covered;
-
- if ( flags & *property )
- return TTO_Err_Not_Covered;
- }
-
- return TT_Err_Ok;
- }
-
-
-/* END */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-17 17:09:39 +0000