/***************************************************************************/ /* */ /* t42drivr.c */ /* */ /* FreeType font driver for Type 42 fonts (body only). */ /* */ /* Copyright 2002 by Roberto Alameda. */ /* */ /* 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 #define FT_ERR_PREFIX T42_Err_ #define FT_ERR_BASE FT_Mod_Err_Type42 #include FT_CONFIG_STANDARD_LIBRARY_H #include FT_INTERNAL_DEBUG_H #include FT_CONFIG_CONFIG_H #include FT_ERRORS_H #include FT_FREETYPE_H #include FT_TYPE1_TABLES_H #include FT_LIST_H #include FT_INTERNAL_DRIVER_H #include FT_INTERNAL_OBJECTS_H #include FT_INTERNAL_TYPE1_TYPES_H #include FT_INTERNAL_POSTSCRIPT_AUX_H #include FT_INTERNAL_STREAM_H /********************* Data Definitions ******************/ typedef enum T42_EncodingType_ { T42_ENCODING_TYPE_NONE = 0, T42_ENCODING_TYPE_ARRAY, T42_ENCODING_TYPE_STANDARD, T42_ENCODING_TYPE_EXPERT, T42_ENCODING_TYPE_ISOLATIN1 } T42_EncodingType; typedef struct T42_Font_ { /* font info dictionary */ PS_FontInfoRec font_info; /* top-level dictionary */ FT_String* font_name; T42_EncodingType encoding_type; T1_EncodingRec encoding; FT_Byte* charstrings_block; FT_Byte* glyph_names_block; FT_Int num_glyphs; FT_String** glyph_names; /* array of glyph names */ FT_Byte** charstrings; /* array of glyph charstrings */ FT_Int* charstrings_len; FT_Byte paint_type; FT_Byte font_type; FT_Matrix font_matrix; /* From FontMatrix field: a, b, c, d */ FT_Vector font_offset; /* From FontMatrix field: tx, ty */ FT_BBox font_bbox; FT_Int stroke_width; } T42_FontRec, *T42_Font; typedef struct T42_FaceRec_ { FT_FaceRec root; T42_FontRec type42; void* psnames; void* psaux; void* afm_data; FT_Byte* ttf_data; FT_ULong ttf_size; FT_Face ttf_face; FT_CharMapRec charmaprecs[2]; FT_CharMap charmaps[2]; PS_Unicodes unicode_map; } T42_FaceRec, *T42_Face; typedef struct T42_DriverRec_ { FT_DriverRec root; FT_Driver_Class ttclazz; void* extension_component; } T42_DriverRec, *T42_Driver; typedef struct T42_SizeRec_ { FT_SizeRec root; FT_Size ttsize; } T42_SizeRec, *T42_Size; typedef struct T42_GlyphSlotRec_ { FT_GlyphSlotRec root; FT_GlyphSlot ttslot; } T42_GlyphSlotRec, *T42_GlyphSlot; /*********** Parser definitions *************/ typedef struct T42_ParserRec_ { PS_ParserRec root; FT_Stream stream; FT_Byte* base_dict; FT_Int base_len; FT_Byte in_memory; } T42_ParserRec, *T42_Parser; typedef struct T42_Loader_ { T42_ParserRec parser; /* parser used to read the stream */ FT_Int num_chars; /* number of characters in encoding */ PS_TableRec encoding_table; /* PS_Table used to store the */ /* encoding character names */ FT_Int num_glyphs; PS_TableRec glyph_names; PS_TableRec charstrings; } T42_LoaderRec, *T42_Loader; /*********************** Prototypes *********************/ static void parse_font_name( T42_Face face, T42_Loader loader ); static void parse_font_bbox( T42_Face face, T42_Loader loader ); static void parse_font_matrix( T42_Face face, T42_Loader loader ); static void parse_encoding( T42_Face face, T42_Loader loader ); static void parse_charstrings( T42_Face face, T42_Loader loader ); static void parse_sfnts( T42_Face face, T42_Loader loader ); static const T1_FieldRec t42_keywords[] = { #undef FT_STRUCTURE #define FT_STRUCTURE T1_FontInfo #undef T1CODE #define T1CODE T1_FIELD_LOCATION_FONT_INFO T1_FIELD_STRING ( "version", version ) T1_FIELD_STRING ( "Notice", notice ) T1_FIELD_STRING ( "FullName", full_name ) T1_FIELD_STRING ( "FamilyName", family_name ) T1_FIELD_STRING ( "Weight", weight ) T1_FIELD_NUM ( "ItalicAngle", italic_angle ) T1_FIELD_TYPE_BOOL( "isFixedPitch", is_fixed_pitch ) T1_FIELD_NUM ( "UnderlinePosition", underline_position ) T1_FIELD_NUM ( "UnderlineThickness", underline_thickness ) #undef FT_STRUCTURE #define FT_STRUCTURE T42_FontRec #undef T1CODE #define T1CODE T1_FIELD_LOCATION_FONT_DICT T1_FIELD_NUM( "PaintType", paint_type ) T1_FIELD_NUM( "FontType", font_type ) T1_FIELD_NUM( "StrokeWidth", stroke_width ) T1_FIELD_CALLBACK( "FontName", parse_font_name ) T1_FIELD_CALLBACK( "FontBBox", parse_font_bbox ) T1_FIELD_CALLBACK( "FontMatrix", parse_font_matrix ) T1_FIELD_CALLBACK( "Encoding", parse_encoding ) T1_FIELD_CALLBACK( "CharStrings", parse_charstrings ) T1_FIELD_CALLBACK( "sfnts", parse_sfnts ) { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0 } }; #define T1_Add_Table( p, i, o, l ) (p)->funcs.add( (p), i, o, l ) #define T1_Done_Table( p ) \ do \ { \ if ( (p)->funcs.done ) \ (p)->funcs.done( p ); \ } while ( 0 ) #define T1_Release_Table( p ) \ do \ { \ if ( (p)->funcs.release ) \ (p)->funcs.release( p ); \ } while ( 0 ) #define T1_Skip_Spaces( p ) (p)->root.funcs.skip_spaces( &(p)->root ) #define T1_Skip_Alpha( p ) (p)->root.funcs.skip_alpha ( &(p)->root ) #define T1_ToInt( p ) (p)->root.funcs.to_int( &(p)->root ) #define T1_ToFixed( p, t ) (p)->root.funcs.to_fixed( &(p)->root, t ) #define T1_ToCoordArray( p, m, c ) \ (p)->root.funcs.to_coord_array( &(p)->root, m, c ) #define T1_ToFixedArray( p, m, f, t ) \ (p)->root.funcs.to_fixed_array( &(p)->root, m, f, t ) #define T1_ToToken( p, t ) \ (p)->root.funcs.to_token( &(p)->root, t ) #define T1_ToTokenArray( p, t, m, c ) \ (p)->root.funcs.to_token_array( &(p)->root, t, m, c ) #define T1_Load_Field( p, f, o, m, pf ) \ (p)->root.funcs.load_field( &(p)->root, f, o, m, pf ) #define T1_Load_Field_Table( p, f, o, m, pf ) \ (p)->root.funcs.load_field_table( &(p)->root, f, o, m, pf ) /********************* Parsing Functions ******************/ static FT_Error T42_New_Parser( T42_Parser parser, FT_Stream stream, FT_Memory memory, PSAux_Service psaux ) { FT_Error error = T42_Err_Ok; FT_Long size; psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory ); parser->stream = stream; parser->base_len = 0; parser->base_dict = 0; parser->in_memory = 0; /*******************************************************************/ /* */ /* Here a short summary of what is going on: */ /* */ /* When creating a new Type 42 parser, we try to locate and load */ /* the base dictionary, loading the whole font into memory. */ /* */ /* When `loading' the base dictionary, we only setup pointers in */ /* the case of a memory-based stream. Otherwise, we allocate */ /* and load the base dictionary in it. */ /* */ /* parser->in_memory is set if we have a memory stream. */ /* */ if ( FT_STREAM_SEEK( 0L ) ) goto Exit; size = stream->size; /* now, try to load `size' bytes of the `base' dictionary we */ /* found previously */ /* if it is a memory-based resource, set up pointers */ if ( !stream->read ) { parser->base_dict = (FT_Byte*)stream->base + stream->pos; parser->base_len = size; parser->in_memory = 1; /* check that the `size' field is valid */ if ( FT_STREAM_SKIP( size ) ) goto Exit; } else { /* read segment in memory */ if (FT_ALLOC( parser->base_dict, size ) || FT_STREAM_READ( parser->base_dict, size ) ) goto Exit; parser->base_len = size; } /* Now check font format; we must see `%!PS-TrueTypeFont' */ if (size <= 17 || ( ft_strncmp( (const char*)parser->base_dict, "%!PS-TrueTypeFont", 17) ) ) error = T42_Err_Unknown_File_Format; else { parser->root.base = parser->base_dict; parser->root.cursor = parser->base_dict; parser->root.limit = parser->root.cursor + parser->base_len; } Exit: if ( error && !parser->in_memory ) FT_FREE( parser->base_dict ); return error; } static void T42_Finalize_Parser( T42_Parser parser ) { FT_Memory memory = parser->root.memory; /* free the base dictionary only when we have a disk stream */ if ( !parser->in_memory ) FT_FREE( parser->base_dict ); parser->root.funcs.done( &parser->root ); } static int is_alpha( FT_Byte c ) { /* Note: we must accept "+" as a valid character, as it is used in */ /* embedded type1 fonts in PDF documents. */ /* */ return ( ft_isalnum( c ) || c == '.' || c == '_' || c == '-' || c == '+' ); } static int is_space( FT_Byte c ) { return ( c == ' ' || c == '\t' || c == '\r' || c == '\n' ); } static void parse_font_name( T42_Face face, T42_Loader loader ) { T42_Parser parser = &loader->parser; FT_Error error; FT_Memory memory = parser->root.memory; FT_Int len; FT_Byte* cur; FT_Byte* cur2; FT_Byte* limit; T1_Skip_Spaces( parser ); cur = parser->root.cursor; limit = parser->root.limit; if ( cur >= limit - 1 || ( *cur != '/' && *cur != '(') ) return; cur++; cur2 = cur; while ( cur2 < limit && is_alpha( *cur2 ) ) cur2++; len = (FT_Int)( cur2 - cur ); if ( len > 0 ) { if ( FT_ALLOC( face->type42.font_name, len + 1 ) ) { parser->root.error = error; return; } FT_MEM_COPY( face->type42.font_name, cur, len ); face->type42.font_name[len] = '\0'; } parser->root.cursor = cur2; } static void parse_font_bbox( T42_Face face, T42_Loader loader ) { T42_Parser parser = &loader->parser; FT_BBox* bbox = &face->type42.font_bbox; bbox->xMin = T1_ToInt( parser ); bbox->yMin = T1_ToInt( parser ); bbox->xMax = T1_ToInt( parser ); bbox->yMax = T1_ToInt( parser ); } static void parse_font_matrix( T42_Face face, T42_Loader loader ) { T42_Parser parser = &loader->parser; FT_Matrix* matrix = &face->type42.font_matrix; FT_Vector* offset = &face->type42.font_offset; FT_Face root = (FT_Face)&face->root; FT_Fixed temp[6]; FT_Fixed temp_scale; /* XXX: Are these three lines necessary */ if ( matrix->xx || matrix->yx ) /* with synthetic fonts, it's possible we get here twice */ return; (void)T1_ToFixedArray( parser, 6, temp, 3 ); temp_scale = ABS( temp[3] ); /* Set Units per EM based on FontMatrix values. We set the value to */ /* 1000 / temp_scale, because temp_scale was already multiplied by */ /* 1000 (in t1_tofixed, from psobjs.c). */ root->units_per_EM = (FT_UShort)( FT_DivFix( 1000 * 0x10000L, temp_scale ) >> 16 ); /* we need to scale the values by 1.0/temp_scale */ if ( temp_scale != 0x10000L ) { temp[0] = FT_DivFix( temp[0], temp_scale ); temp[1] = FT_DivFix( temp[1], temp_scale ); temp[2] = FT_DivFix( temp[2], temp_scale ); temp[4] = FT_DivFix( temp[4], temp_scale ); temp[5] = FT_DivFix( temp[5], temp_scale ); temp[3] = 0x10000L; } matrix->xx = temp[0]; matrix->yx = temp[1]; matrix->xy = temp[2]; matrix->yy = temp[3]; /* note that the offsets must be expressed in integer font units */ offset->x = temp[4] >> 16; offset->y = temp[5] >> 16; } static void parse_encoding( T42_Face face, T42_Loader loader ) { T42_Parser parser = &loader->parser; FT_Byte* cur = parser->root.cursor; FT_Byte* limit = parser->root.limit; PSAux_Service psaux = (PSAux_Service)face->psaux; /* skip whitespace */ while ( is_space( *cur ) ) { cur++; if ( cur >= limit ) { FT_ERROR(( "parse_encoding: out of bounds!\n" )); parser->root.error = T42_Err_Invalid_File_Format; return; } } /* if we have a number, then the encoding is an array, */ /* and we must load it now */ if ( (FT_Byte)( *cur - '0' ) < 10 ) { T1_Encoding encode = &face->type42.encoding; FT_Int count, n; PS_Table char_table = &loader->encoding_table; FT_Memory memory = parser->root.memory; FT_Error error; /* read the number of entries in the encoding, should be 256 */ count = T1_ToInt( parser ); if ( parser->root.error ) return; /* we use a T1_Table to store our charnames */ loader->num_chars = encode->num_chars = count; if ( FT_NEW_ARRAY( encode->char_index, count ) || FT_NEW_ARRAY( encode->char_name, count ) || FT_SET_ERROR( psaux->ps_table_funcs->init( char_table, count, memory ) ) ) { parser->root.error = error; return; } /* We need to `zero' out encoding_table.elements */ for ( n = 0; n < count; n++ ) { char* notdef = (char *)".notdef"; T1_Add_Table( char_table, n, notdef, 8 ); } /* Now, we will need to read a record of the form */ /* ... charcode /charname ... for each entry in our table */ /* */ /* We simply look for a number followed by an immediate */ /* name. Note that this ignores correctly the sequence */ /* that is often seen in type1 fonts: */ /* */ /* 0 1 255 { 1 index exch /.notdef put } for dup */ /* */ /* used to clean the encoding array before anything else. */ /* */ /* We stop when we encounter a `def'. */ cur = parser->root.cursor; limit = parser->root.limit; n = 0; for ( ; cur < limit; ) { FT_Byte c; c = *cur; /* we stop when we encounter a `def' */ if ( c == 'd' && cur + 3 < limit ) { if ( cur[1] == 'e' && cur[2] == 'f' && is_space( cur[-1] ) && is_space( cur[3] ) ) { FT_TRACE6(( "encoding end\n" )); break; } } /* otherwise, we must find a number before anything else */ if ( (FT_Byte)( c - '0' ) < 10 ) { FT_Int charcode; parser->root.cursor = cur; charcode = T1_ToInt( parser ); cur = parser->root.cursor; /* skip whitespace */ while ( cur < limit && is_space( *cur ) ) cur++; if ( cur < limit && *cur == '/' ) { /* bingo, we have an immediate name -- it must be a */ /* character name */ FT_Byte* cur2 = cur + 1; FT_Int len; while ( cur2 < limit && is_alpha( *cur2 ) ) cur2++; len = (FT_Int)( cur2 - cur - 1 ); parser->root.error = T1_Add_Table( char_table, charcode, cur + 1, len + 1 ); char_table->elements[charcode][len] = '\0'; if ( parser->root.error ) return; cur = cur2; } } else cur++; } face->type42.encoding_type = T42_ENCODING_TYPE_ARRAY; parser->root.cursor = cur; } /* Otherwise, we should have either `StandardEncoding', */ /* `ExpertEncoding', or `ISOLatin1Encoding' */ else { if ( cur + 17 < limit && ft_strncmp( (const char*)cur, "StandardEncoding", 16 ) == 0 ) face->type42.encoding_type = T42_ENCODING_TYPE_STANDARD; else if ( cur + 15 < limit && ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 ) face->type42.encoding_type = T42_ENCODING_TYPE_EXPERT; else if ( cur + 18 < limit && ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 ) face->type42.encoding_type = T42_ENCODING_TYPE_ISOLATIN1; else { FT_ERROR(( "parse_encoding: invalid token!\n" )); parser->root.error = T42_Err_Invalid_File_Format; } } } static FT_Byte hexval( FT_Byte v ) { if ( v >= 'A' && v <= 'F' ) return v - 'A' + 10; if ( v >= 'a' && v <= 'f' ) return v - 'a' + 10; if ( v >= '0' && v <= '9' ) return v - '0'; return 0; } static void parse_sfnts( T42_Face face, T42_Loader loader ) { T42_Parser parser = &loader->parser; FT_Memory memory = parser->root.memory; FT_Byte* cur = parser->root.cursor; FT_Byte* limit = parser->root.limit; FT_Error error; FT_Int num_tables, status; FT_ULong count, ttf_size, string_size; FT_Bool in_string = 0; FT_Byte v; /* The format is `/sfnts [ <...> <...> ... ] def' */ while ( is_space( *cur ) ) cur++; if (*cur++ == '[') { status = 0; count = 0; } else { FT_ERROR(( "parse_sfnts: can't find begin of sfnts vector!\n" )); error = T42_Err_Invalid_File_Format; goto Fail; } while ( cur < limit - 2 ) { while ( is_space( *cur ) ) cur++; switch ( *cur ) { case ']': parser->root.cursor = cur++; return; case '<': in_string = 1; string_size = 0; cur++; continue; case '>': if ( !in_string ) { FT_ERROR(( "parse_sfnts: found unpaired `>'!\n" )); error = T42_Err_Invalid_File_Format; goto Fail; } /* A string can have, as a last byte, */ /* a zero byte for padding. If so, ignore it */ if ( ( v == 0 ) && ( string_size % 2 == 1 ) ) count--; in_string = 0; cur++; continue; case '%': if ( !in_string ) { /* Comment found; skip till end of line */ while ( *cur != '\n' ) cur++; continue; } else { FT_ERROR(( "parse_sfnts: found `%' in string!\n" )); error = T42_Err_Invalid_File_Format; goto Fail; } default: if ( !ft_xdigit( *cur ) || !ft_xdigit( *(cur + 1) ) ) { FT_ERROR(( "parse_sfnts: found non-hex characters in string" )); error = T42_Err_Invalid_File_Format; goto Fail; } v = 16 * hexval( *cur++ ) + hexval( *cur++ ); string_size++; } switch ( status ) { case 0: /* The '[' was read, so load offset table, 12 bytes */ if ( count < 12 ) { face->ttf_data[count++] = v; continue; } else { num_tables = 16 * face->ttf_data[4] + face->ttf_data[5]; status = 1; ttf_size = 12 + 16 * num_tables; if ( FT_REALLOC( face->ttf_data, 12, ttf_size ) ) goto Fail; } /* No break, fall-through */ case 1: /* The offset table is read; read now the table directory */ if ( count < ttf_size ) { face->ttf_data[count++] = v; continue; } else { int i; FT_ULong len; for ( i = 0; i < num_tables; i++ ) { len = face->ttf_data[12 + 16*i + 12 + 0] << 24; len += face->ttf_data[12 + 16*i + 12 + 1] << 16; len += face->ttf_data[12 + 16*i + 12 + 2] << 8; len += face->ttf_data[12 + 16*i + 12 + 3]; /* Pad to a 4-byte boundary length */ ttf_size += ( len + 3 ) & ~3; } status = 2; face->ttf_size = ttf_size; if ( FT_REALLOC( face->ttf_data, 12 + 16 * num_tables, ttf_size + 1 ) ) goto Fail; } /* No break, fall-through */ case 2: /* We are reading normal tables; just swallow them */ face->ttf_data[count++] = v; } } /* If control reaches this point, the format was not valid */ error = T42_Err_Invalid_File_Format; Fail: parser->root.error = error; } static void parse_charstrings( T42_Face face, T42_Loader loader ) { T42_Parser parser = &loader->parser; PS_Table code_table = &loader->charstrings; PS_Table name_table = &loader->glyph_names; FT_Memory memory = parser->root.memory; FT_Error error; PSAux_Service psaux = (PSAux_Service)face->psaux; FT_Byte* cur; FT_Byte* limit = parser->root.limit; FT_Int n; loader->num_glyphs = T1_ToInt( parser ); if ( parser->root.error ) return; /* initialize tables */ error = psaux->ps_table_funcs->init( code_table, loader->num_glyphs, memory ); if ( error ) goto Fail; error = psaux->ps_table_funcs->init( name_table, loader->num_glyphs, memory ); if ( error ) goto Fail; n = 0; for (;;) { /* the format is simple: */ /* `/glyphname' + index + def */ /* */ /* note that we stop when we find an `end' */ /* */ T1_Skip_Spaces( parser ); cur = parser->root.cursor; if ( cur >= limit ) break; /* we stop when we find an `end' keyword */ if ( *cur == 'e' && cur + 3 < limit && cur[1] == 'n' && cur[2] == 'd' ) break; if ( *cur != '/' ) T1_Skip_Alpha( parser ); else { FT_Byte* cur2 = cur + 1; FT_Int len; while ( cur2 < limit && is_alpha( *cur2 ) ) cur2++; len = (FT_Int)( cur2 - cur - 1 ); error = T1_Add_Table( name_table, n, cur + 1, len + 1 ); if ( error ) goto Fail; /* add a trailing zero to the name table */ name_table->elements[n][len] = '\0'; parser->root.cursor = cur2; T1_Skip_Spaces( parser ); cur2 = cur = parser->root.cursor; if ( cur >= limit ) break; while ( cur2 < limit && is_alpha( *cur2 ) ) cur2++; len = (FT_Int)( cur2 - cur ); error = T1_Add_Table( code_table, n, cur, len + 1 ); if ( error ) goto Fail; code_table->elements[n][len] = '\0'; n++; if ( n >= loader->num_glyphs ) break; } } /* Index 0 must be a .notdef element */ if ( ft_strcmp( (char *)name_table->elements[0], ".notdef" ) ) { FT_ERROR(( "parse_charstrings: Index 0 is not `.notdef'!\n" )); error = T42_Err_Invalid_File_Format; goto Fail; } loader->num_glyphs = n; return; Fail: parser->root.error = error; } static FT_Error t42_load_keyword( T42_Face face, T42_Loader loader, T1_Field field ) { FT_Error error; void* dummy_object; void** objects; FT_UInt max_objects = 0; /* if the keyword has a dedicated callback, call it */ if ( field->type == T1_FIELD_TYPE_CALLBACK ) { field->reader( (FT_Face)face, loader ); error = loader->parser.root.error; goto Exit; } /* now, the keyword is either a simple field, or a table of fields; */ /* we are now going to take care of it */ switch ( field->location ) { case T1_FIELD_LOCATION_FONT_INFO: dummy_object = &face->type42.font_info; objects = &dummy_object; break; default: dummy_object = &face->type42; objects = &dummy_object; } if ( field->type == T1_FIELD_TYPE_INTEGER_ARRAY || field->type == T1_FIELD_TYPE_FIXED_ARRAY ) error = T1_Load_Field_Table( &loader->parser, field, objects, max_objects, 0 ); else error = T1_Load_Field( &loader->parser, field, objects, max_objects, 0 ); Exit: return error; } static FT_Error parse_dict( T42_Face face, T42_Loader loader, FT_Byte* base, FT_Long size ) { T42_Parser parser = &loader->parser; FT_Byte* cur = base; FT_Byte* limit = cur + size; FT_UInt n_keywords = sizeof ( t42_keywords ) / sizeof ( t42_keywords[0] ); parser->root.cursor = base; parser->root.limit = base + size; parser->root.error = 0; for ( ; cur < limit; cur++ ) { /* look for `FontDirectory', which causes problems on some fonts */ if ( *cur == 'F' && cur + 25 < limit && ft_strncmp( (char*)cur, "FontDirectory", 13 ) == 0 ) { FT_Byte* cur2; /* skip the `FontDirectory' keyword */ cur += 13; cur2 = cur; /* lookup the `known' keyword */ while ( cur < limit && *cur != 'k' && ft_strncmp( (char*)cur, "known", 5 ) ) cur++; if ( cur < limit ) { T1_TokenRec token; /* skip the `known' keyword and the token following it */ cur += 5; loader->parser.root.cursor = cur; T1_ToToken( &loader->parser, &token ); /* if the last token was an array, skip it! */ if ( token.type == T1_TOKEN_TYPE_ARRAY ) cur2 = parser->root.cursor; } cur = cur2; } /* look for immediates */ else if ( *cur == '/' && cur + 2 < limit ) { FT_Byte* cur2; FT_UInt i, len; cur++; cur2 = cur; while ( cur2 < limit && is_alpha( *cur2 ) ) cur2++; len = (FT_UInt)( cur2 - cur ); if ( len > 0 && len < 22 ) /* XXX What shall it this 22? */ { /* now, compare the immediate name to the keyword table */ /* Loop through all known keywords */ for ( i = 0; i < n_keywords; i++ ) { T1_Field keyword = (T1_Field)&t42_keywords[i]; FT_Byte *name = (FT_Byte*)keyword->ident; if ( !name ) continue; if ( ( len == ft_strlen( (const char *)name ) ) && ( ft_memcmp( cur, name, len ) == 0 ) ) { /* we found it -- run the parsing callback! */ parser->root.cursor = cur2; T1_Skip_Spaces( parser ); parser->root.error = t42_load_keyword(face, loader, keyword ); if ( parser->root.error ) return parser->root.error; cur = parser->root.cursor; break; } } } } } return parser->root.error; } static void t42_init_loader( T42_Loader loader, T42_Face face ) { FT_UNUSED( face ); FT_MEM_SET( loader, 0, sizeof ( *loader ) ); loader->num_glyphs = 0; loader->num_chars = 0; /* initialize the tables -- simply set their `init' field to 0 */ loader->encoding_table.init = 0; loader->charstrings.init = 0; loader->glyph_names.init = 0; } static void t42_done_loader( T42_Loader loader ) { T42_Parser parser = &loader->parser; /* finalize tables */ T1_Release_Table( &loader->encoding_table ); T1_Release_Table( &loader->charstrings ); T1_Release_Table( &loader->glyph_names ); /* finalize parser */ T42_Finalize_Parser( parser ); } static FT_Error T42_Open_Face( T42_Face face ) { T42_LoaderRec loader; T42_Parser parser; T42_Font type42 = &face->type42; FT_Memory memory = face->root.memory; FT_Error error; PSAux_Service psaux = (PSAux_Service)face->psaux; t42_init_loader( &loader, face ); parser = &loader.parser; if ( FT_ALLOC( face->ttf_data, 12 ) ) goto Exit; error = T42_New_Parser( parser, face->root.stream, memory, psaux); if ( error ) goto Exit; error = parse_dict( face, &loader, parser->base_dict, parser->base_len ); if ( type42->font_type != 42 ) { error = T42_Err_Unknown_File_Format; goto Exit; } /* now, propagate the charstrings and glyphnames tables */ /* to the Type42 data */ type42->num_glyphs = loader.num_glyphs; if ( !loader.charstrings.init ) { FT_ERROR(( "T42_Open_Face: no charstrings array in face!\n" )); error = T42_Err_Invalid_File_Format; } loader.charstrings.init = 0; type42->charstrings_block = loader.charstrings.block; type42->charstrings = loader.charstrings.elements; type42->charstrings_len = loader.charstrings.lengths; /* we copy the glyph names `block' and `elements' fields; */ /* the `lengths' field must be released later */ type42->glyph_names_block = loader.glyph_names.block; type42->glyph_names = (FT_String**)loader.glyph_names.elements; loader.glyph_names.block = 0; loader.glyph_names.elements = 0; /* we must now build type42.encoding when we have a custom array */ if ( type42->encoding_type == T42_ENCODING_TYPE_ARRAY ) { FT_Int charcode, idx, min_char, max_char; FT_Byte* char_name; FT_Byte* glyph_name; /* OK, we do the following: for each element in the encoding */ /* table, look up the index of the glyph having the same name */ /* as defined in the CharStrings array. */ /* The index is then stored in type42.encoding.char_index, and */ /* the name in type42.encoding.char_name */ min_char = +32000; max_char = -32000; charcode = 0; for ( ; charcode < loader.encoding_table.max_elems; charcode++ ) { type42->encoding.char_index[charcode] = 0; type42->encoding.char_name [charcode] = (char *)".notdef"; char_name = loader.encoding_table.elements[charcode]; if ( char_name ) for ( idx = 0; idx < type42->num_glyphs; idx++ ) { glyph_name = (FT_Byte*)type42->glyph_names[idx]; if ( ft_strcmp( (const char*)char_name, (const char*)glyph_name ) == 0 ) { type42->encoding.char_index[charcode] = (FT_UShort)idx; type42->encoding.char_name [charcode] = (char*)glyph_name; /* Change min/max encoded char only if glyph name is */ /* not /.notdef */ if ( ft_strcmp( (const char*)".notdef", (const char*)glyph_name ) != 0 ) { if ( charcode < min_char ) min_char = charcode; if ( charcode > max_char ) max_char = charcode; } break; } } } type42->encoding.code_first = min_char; type42->encoding.code_last = max_char; type42->encoding.num_chars = loader.num_chars; } Exit: t42_done_loader( &loader ); return error; } /***************** Driver Functions *************/ /*************************************************************************/ /* */ /* */ /* The face object constructor. */ /* */ /* */ /* stream :: input stream where to load font data. */ /* */ /* face_index :: The index of the font face in the resource. */ /* */ /* num_params :: Number of additional generic parameters. Ignored. */ /* */ /* params :: Additional generic parameters. Ignored. */ /* */ /* */ /* face :: The face record to build. */ /* */ /* */ /* FreeType error code. 0 means success. */ /* */ static FT_Error T42_Face_Init( FT_Stream stream, T42_Face face, FT_Int face_index, FT_Int num_params, FT_Parameter* params) { FT_Error error; PSNames_Service psnames; PSAux_Service psaux; FT_Face root = (FT_Face)&face->root; FT_CharMap charmap = face->charmaprecs; FT_UNUSED( num_params ); FT_UNUSED( params ); FT_UNUSED( face_index ); FT_UNUSED( stream ); face->ttf_face = NULL; face->root.num_faces = 1; /* XXX */ psnames = (PSNames_Service)face->psnames; if ( !psnames ) { psnames = (PSNames_Service) FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psnames" ); face->psnames = psnames; } psaux = (PSAux_Service)face->psaux; if ( !psaux ) { psaux = (PSAux_Service) FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psaux" ); face->psaux = psaux; } /* open the tokenizer, this will also check the font format */ error = T42_Open_Face( face ); if ( error ) goto Exit; /* if we just wanted to check the format, leave successfully now */ if ( face_index < 0 ) goto Exit; /* check the face index */ if ( face_index != 0 ) { FT_ERROR(( "T42_Face_Init: invalid face index\n" )); error = T42_Err_Invalid_Argument; goto Exit; } /* Now, load the font program into the face object */ /* Init the face object fields */ /* Now set up root face fields */ root->num_glyphs = face->type42.num_glyphs; root->num_charmaps = 1; root->face_index = face_index; root->face_flags = FT_FACE_FLAG_SCALABLE; root->face_flags |= FT_FACE_FLAG_HORIZONTAL; root->face_flags |= FT_FACE_FLAG_GLYPH_NAMES; if ( face->type42.font_info.is_fixed_pitch ) root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; /* XXX: TODO -- add kerning with .afm support */ /* get style name -- be careful, some broken fonts only */ /* have a `/FontName' dictionary entry! */ root->family_name = face->type42.font_info.family_name; if ( root->family_name ) { char* full = face->type42.font_info.full_name; char* family = root->family_name; if ( full ) { while ( *family && *full == *family ) { family++; full++; } root->style_name = ( *full == ' ' ? full + 1 : (char *)"Regular" ); } else root->style_name = (char *)"Regular"; } else { /* do we have a `/FontName'? */ if ( face->type42.font_name ) { root->family_name = face->type42.font_name; root->style_name = (char *)"Regular"; } } /* no embedded bitmap support */ root->num_fixed_sizes = 0; root->available_sizes = 0; /* Load the TTF font embedded in the T42 font */ error = FT_New_Memory_Face( FT_FACE_LIBRARY( face ), face->ttf_data, face->ttf_size, 0, &face->ttf_face ); if ( error ) goto Exit; /* Ignore info in FontInfo dictionary and use the info from the */ /* loaded TTF font. The PostScript interpreter also ignores it. */ root->bbox = face->ttf_face->bbox; root->units_per_EM = face->ttf_face->units_per_EM; root->ascender = face->ttf_face->ascender; root->descender = face->ttf_face->descender; root->height = face->ttf_face->height; root->max_advance_width = face->ttf_face->max_advance_width; root->max_advance_height = face->ttf_face->max_advance_height; root->underline_position = face->type42.font_info.underline_position; root->underline_thickness = face->type42.font_info.underline_thickness; root->internal->max_points = 0; root->internal->max_contours = 0; /* compute style flags */ root->style_flags = 0; if ( face->type42.font_info.italic_angle ) root->style_flags |= FT_STYLE_FLAG_ITALIC; if ( face->ttf_face->style_flags & FT_STYLE_FLAG_BOLD ) root->style_flags |= FT_STYLE_FLAG_BOLD; if ( face->ttf_face->face_flags & FT_FACE_FLAG_VERTICAL ) root->face_flags |= FT_FACE_FLAG_VERTICAL; /* XXX: Add support for new cmaps code in FT 2.1.0 */ /* charmap support -- synthetize unicode charmap if possible */ /* synthesize a Unicode charmap if there is support in the `PSNames' */ /* module */ if ( psnames && psnames->unicode_value ) { error = psnames->build_unicodes( root->memory, face->type42.num_glyphs, (const char**)face->type42.glyph_names, &face->unicode_map ); if ( !error ) { root->charmap = charmap; charmap->face = (FT_Face)face; charmap->encoding = ft_encoding_unicode; charmap->platform_id = 3; charmap->encoding_id = 1; charmap++; } /* XXX: Is the following code correct? It is used in t1objs.c */ /* simply clear the error in case of failure (which really) */ /* means that out of memory or no unicode glyph names */ error = T42_Err_Ok; } /* now, support either the standard, expert, or custom encoding */ charmap->face = (FT_Face)face; charmap->platform_id = 7; /* a new platform id for Adobe fonts? */ switch ( face->type42.encoding_type ) { case T42_ENCODING_TYPE_STANDARD: charmap->encoding = ft_encoding_adobe_standard; charmap->encoding_id = 0; break; case T42_ENCODING_TYPE_EXPERT: charmap->encoding = ft_encoding_adobe_expert; charmap->encoding_id = 1; break; case T42_ENCODING_TYPE_ARRAY: charmap->encoding = ft_encoding_adobe_custom; charmap->encoding_id = 2; break; case T42_ENCODING_TYPE_ISOLATIN1: charmap->encoding = ft_encoding_latin_1; charmap->encoding_id = 3; break; default: FT_ERROR(( "T42_Face_Init: invalid encoding\n" )); error = T42_Err_Invalid_File_Format; goto Exit; } root->charmaps = face->charmaps; root->num_charmaps = charmap - face->charmaprecs + 1; face->charmaps[0] = &face->charmaprecs[0]; face->charmaps[1] = &face->charmaprecs[1]; Exit: return error; } /*************************************************************************/ /* */ /* */ /* T42_Face_Done */ /* */ /* */ /* The face object destructor. */ /* */ /* */ /* face :: A typeless pointer to the face object to destroy. */ /* */ static void T42_Face_Done( T42_Face face ) { T42_Font type42; PS_FontInfo info; FT_Memory memory; if ( face ) { type42 = &face->type42; info = &type42->font_info; memory = face->root.memory; /* delete internal ttf face prior to freeing face->ttf_data */ if ( face->ttf_face ) FT_Done_Face( face->ttf_face ); /* release font info strings */ FT_FREE( info->version ); FT_FREE( info->notice ); FT_FREE( info->full_name ); FT_FREE( info->family_name ); FT_FREE( info->weight ); /* release top dictionary */ FT_FREE( type42->charstrings_len ); FT_FREE( type42->charstrings ); FT_FREE( type42->glyph_names ); FT_FREE( type42->charstrings_block ); FT_FREE( type42->glyph_names_block ); FT_FREE( type42->encoding.char_index ); FT_FREE( type42->encoding.char_name ); FT_FREE( type42->font_name ); FT_FREE( face->ttf_data ); #if 0 /* release afm data if present */ if ( face->afm_data ) T1_Done_AFM( memory, (T1_AFM*)face->afm_data ); #endif /* release unicode map, if any */ FT_FREE( face->unicode_map.maps ); face->unicode_map.num_maps = 0; face->root.family_name = 0; face->root.style_name = 0; } } /*************************************************************************/ /* */ /* */ /* T42_Driver_Init */ /* */ /* */ /* Initializes a given Type 42 driver object. */ /* */ /* */ /* driver :: A handle to the target driver object. */ /* */ /* */ /* FreeType error code. 0 means success. */ /* */ static FT_Error T42_Driver_Init( T42_Driver driver ) { FT_Module ttmodule; ttmodule = FT_Get_Module( driver->root.root.library, "truetype" ); driver->ttclazz = (FT_Driver_Class)ttmodule->clazz; /* XXX: What about hinter support? */ #if 0 if (ttmodule->clazz->module_flags & ft_module_driver_has_hinter) driver->root.clazz->root.module_flags |= ft_module_driver_has_hinter; #endif return T42_Err_Ok; } static void T42_Driver_Done( T42_Driver driver ) { FT_UNUSED( driver ); } /*************************************************************************/ /* */ /* */ /* Get_Char_Index */ /* */ /* */ /* Uses a charmap to return a given character code's glyph index. */ /* */ /* */ /* charmap :: A handle to the source charmap object. */ /* */ /* charcode :: The character code. */ /* */ /* */ /* Glyph index. 0 means `undefined character code'. */ /* */ static FT_UInt Get_Char_Index( FT_CharMap charmap, FT_Long charcode ) { T42_Face face; FT_UInt result = 0; PSNames_Service psnames; face = (T42_Face)charmap->face; psnames = (PSNames_Service)face->psnames; if (!psnames ) goto Exit; switch ( charmap->encoding ) { /*******************************************************************/ /* */ /* Unicode encoding support */ /* */ case ft_encoding_unicode: /* if this charmap is used, we ignore the encoding of the font and */ /* use the `PSNames' module to synthetize the Unicode charmap */ result = psnames->lookup_unicode( &face->unicode_map, (FT_ULong)charcode ); /* the function returns 0xFFFF if the Unicode charcode has */ /* no corresponding glyph */ if ( result == 0xFFFFU ) result = 0; /* The result returned is the index (position)in the CharStrings */ /* array. This must be used now to get the value associated to */ /* that glyph_name, which is the real index within the truetype */ /* structure. */ result = ft_atoi( (const char*)face->type42.charstrings[result] ); goto Exit; /*******************************************************************/ /* */ /* ISOLatin1 encoding support */ /* */ case ft_encoding_latin_1: /* ISOLatin1 is the first page of Unicode */ if ( charcode < 256 && psnames->unicode_value ) { result = psnames->lookup_unicode( &face->unicode_map, (FT_ULong)charcode ); /* the function returns 0xFFFF if the Unicode charcode has */ /* no corresponding glyph */ if ( result == 0xFFFFU ) result = 0; } goto Exit; /*******************************************************************/ /* */ /* Custom Type 1 encoding */ /* */ case ft_encoding_adobe_custom: { T1_Encoding encoding = &face->type42.encoding; if ( charcode >= encoding->code_first && charcode <= encoding->code_last ) { FT_UInt idx = encoding->char_index[charcode]; result = ft_atoi( (const char *)face->type42.charstrings[idx] ); } goto Exit; } /*******************************************************************/ /* */ /* Adobe Standard & Expert encoding support */ /* */ default: if ( charcode < 256 ) { FT_UInt code; FT_Int n; const char* glyph_name; code = psnames->adobe_std_encoding[charcode]; if ( charmap->encoding == ft_encoding_adobe_expert ) code = psnames->adobe_expert_encoding[charcode]; glyph_name = psnames->adobe_std_strings( code ); if ( !glyph_name ) break; for ( n = 0; n < face->type42.num_glyphs; n++ ) { const char* gname = face->type42.glyph_names[n]; if ( gname && ( ft_strcmp( gname, glyph_name ) == 0 ) ) { result = ft_atoi( (const char *)face->type42.charstrings[n] ); break; } } } } Exit: return result; } static FT_Error T42_Size_Init( T42_Size size ) { FT_Face face = size->root.face; T42_Face t42face = (T42_Face)face; FT_Size ttsize; FT_Error error = T42_Err_Ok; if ( face->size == NULL ) { /* First size for this face */ size->ttsize = t42face->ttf_face->size; } else { error = FT_New_Size( t42face->ttf_face, &ttsize ); size->ttsize = ttsize; } return error; } static void T42_Size_Done( T42_Size size ) { FT_Face face = size->root.face; T42_Face t42face = (T42_Face)face; FT_ListNode node; node = FT_List_Find( &t42face->ttf_face->sizes_list, size->ttsize ); if ( node ) FT_Done_Size( size->ttsize ); } static FT_Error T42_GlyphSlot_Init( T42_GlyphSlot slot ) { FT_Face face = slot->root.face; T42_Face t42face = (T42_Face)face; FT_GlyphSlot ttslot; FT_Error error = T42_Err_Ok; if ( face->glyph == NULL ) { /* First glyph slot for this face */ slot->ttslot = t42face->ttf_face->glyph; } else { error = FT_New_GlyphSlot( t42face->ttf_face, &ttslot ); slot->ttslot = ttslot; } return error; } static void T42_GlyphSlot_Done( T42_GlyphSlot slot ) { FT_Face face = slot->root.face; T42_Face t42face = (T42_Face)face; FT_GlyphSlot cur = t42face->ttf_face->glyph; while ( cur ) { if ( cur == slot->ttslot ) { FT_Done_GlyphSlot( slot->ttslot ); break; } cur = cur->next; } } static FT_Error T42_Char_Size( T42_Size size, FT_F26Dot6 char_width, FT_F26Dot6 char_height, FT_UInt horz_resolution, FT_UInt vert_resolution ) { FT_Face face = size->root.face; T42_Face t42face = (T42_Face)face; return FT_Set_Char_Size( t42face->ttf_face, char_width, char_height, horz_resolution, vert_resolution ); } static FT_Error T42_Pixel_Size( T42_Size size, FT_UInt pixel_width, FT_UInt pixel_height ) { FT_Face face = size->root.face; T42_Face t42face = (T42_Face)face; return FT_Set_Pixel_Sizes( t42face->ttf_face, pixel_width, pixel_height ); } static void ft_glyphslot_clear( FT_GlyphSlot slot ) { /* free bitmap if needed */ if ( slot->flags & FT_GLYPH_OWN_BITMAP ) { FT_Memory memory = FT_FACE_MEMORY( slot->face ); FT_FREE( slot->bitmap.buffer ); slot->flags &= ~FT_GLYPH_OWN_BITMAP; } /* clear all public fields in the glyph slot */ FT_MEM_SET( &slot->metrics, 0, sizeof ( slot->metrics ) ); FT_MEM_SET( &slot->outline, 0, sizeof ( slot->outline ) ); FT_MEM_SET( &slot->bitmap, 0, sizeof ( slot->bitmap ) ); slot->bitmap_left = 0; slot->bitmap_top = 0; slot->num_subglyphs = 0; slot->subglyphs = 0; slot->control_data = 0; slot->control_len = 0; slot->other = 0; slot->format = ft_glyph_format_none; slot->linearHoriAdvance = 0; slot->linearVertAdvance = 0; } static FT_Error T42_Load_Glyph( FT_GlyphSlot glyph, FT_Size size, FT_Int glyph_index, FT_Int load_flags ) { FT_Error error; T42_GlyphSlot t42slot = (T42_GlyphSlot)glyph; T42_Size t42size = (T42_Size)size; FT_Driver_Class ttclazz = ((T42_Driver)glyph->face->driver)->ttclazz; ft_glyphslot_clear( t42slot->ttslot ); error = ttclazz->load_glyph( t42slot->ttslot, t42size->ttsize, glyph_index, load_flags | FT_LOAD_NO_BITMAP ); if ( !error ) { glyph->metrics = t42slot->ttslot->metrics; glyph->linearHoriAdvance = t42slot->ttslot->linearHoriAdvance; glyph->linearVertAdvance = t42slot->ttslot->linearVertAdvance; glyph->format = t42slot->ttslot->format; glyph->outline = t42slot->ttslot->outline; glyph->bitmap = t42slot->ttslot->bitmap; glyph->bitmap_left = t42slot->ttslot->bitmap_left; glyph->bitmap_top = t42slot->ttslot->bitmap_top; } return error; } /*************************************************************************/ /* */ /* */ /* Get_Next_Char */ /* */ /* */ /* Uses a charmap to return the next encoded char. */ /* */ /* */ /* charmap :: A handle to the source charmap object. */ /* */ /* charcode :: The character code. */ /* */ /* */ /* Next char code. 0 means `no more char codes'. */ /* */ static FT_Long Get_Next_Char( FT_CharMap charmap, FT_Long charcode ) { T42_Face face; PSNames_Service psnames; face = (T42_Face)charmap->face; psnames = (PSNames_Service)face->psnames; if ( psnames ) switch ( charmap->encoding ) { /*******************************************************************/ /* */ /* Unicode encoding support */ /* */ case ft_encoding_unicode: /* use the `PSNames' module to synthetize the Unicode charmap */ return psnames->next_unicode( &face->unicode_map, (FT_ULong)charcode ); /*******************************************************************/ /* */ /* ISOLatin1 encoding support */ /* */ case ft_encoding_latin_1: { FT_ULong code; /* use the `PSNames' module to synthetize the Unicode charmap */ code = psnames->next_unicode( &face->unicode_map, (FT_ULong)charcode ); if ( code < 256 ) return code; break; } /*******************************************************************/ /* */ /* Custom Type 1 encoding */ /* */ case ft_encoding_adobe_custom: { T1_Encoding encoding = &face->type42.encoding; charcode++; if ( charcode < encoding->code_first ) charcode = encoding->code_first; while ( charcode <= encoding->code_last ) { if ( encoding->char_index[charcode] ) return charcode; charcode++; } } /*******************************************************************/ /* */ /* Adobe Standard & Expert encoding support */ /* */ default: while ( ++charcode < 256 ) { FT_UInt code; FT_Int n; const char* glyph_name; code = psnames->adobe_std_encoding[charcode]; if ( charmap->encoding == ft_encoding_adobe_expert ) code = psnames->adobe_expert_encoding[charcode]; glyph_name = psnames->adobe_std_strings( code ); if ( !glyph_name ) continue; for ( n = 0; n < face->type42.num_glyphs; n++ ) { const char* gname = face->type42.glyph_names[n]; if ( gname && gname[0] == glyph_name[0] && ft_strcmp( gname, glyph_name ) == 0 ) return charcode; } } } return 0; } static FT_Error t42_get_glyph_name( T42_Face face, FT_UInt glyph_index, FT_Pointer buffer, FT_UInt buffer_max ) { FT_String* gname; gname = face->type42.glyph_names[glyph_index]; if ( buffer_max > 0 ) { FT_UInt len = (FT_UInt)( ft_strlen( gname ) ); if ( len >= buffer_max ) len = buffer_max - 1; FT_MEM_COPY( buffer, gname, len ); ((FT_Byte*)buffer)[len] = 0; } return T42_Err_Ok; } static const char* t42_get_ps_name( T42_Face face ) { return (const char*)face->type42.font_name; } static FT_UInt t42_get_name_index( T42_Face face, FT_String* glyph_name ) { FT_Int i; FT_String* gname; for ( i = 0; i < face->type42.num_glyphs; i++ ) { gname = face->type42.glyph_names[i]; if ( !ft_strcmp( glyph_name, gname ) ) return ft_atoi( (const char *)face->type42.charstrings[i] ); } return 0; } static FT_Module_Interface Get_Interface( FT_Driver driver, const FT_String* t42_interface ) { FT_UNUSED( driver ); /* Any additional interface are defined here */ if (ft_strcmp( (const char*)t42_interface, "glyph_name" ) == 0 ) return (FT_Module_Interface)t42_get_glyph_name; if ( ft_strcmp( (const char*)t42_interface, "name_index" ) == 0 ) return (FT_Module_Interface)t42_get_name_index; if ( ft_strcmp( (const char*)t42_interface, "postscript_name" ) == 0 ) return (FT_Module_Interface)t42_get_ps_name; return 0; } const FT_Driver_ClassRec t42_driver_class = { { ft_module_font_driver | ft_module_driver_scalable | ft_module_driver_has_hinter, sizeof ( T42_DriverRec ), "type42", 0x10000L, 0x20000L, 0, /* format interface */ (FT_Module_Constructor)T42_Driver_Init, (FT_Module_Destructor) T42_Driver_Done, (FT_Module_Requester) Get_Interface, }, sizeof ( T42_FaceRec ), sizeof ( T42_SizeRec ), sizeof ( T42_GlyphSlotRec ), (FT_Face_InitFunc) T42_Face_Init, (FT_Face_DoneFunc) T42_Face_Done, (FT_Size_InitFunc) T42_Size_Init, (FT_Size_DoneFunc) T42_Size_Done, (FT_Slot_InitFunc) T42_GlyphSlot_Init, (FT_Slot_DoneFunc) T42_GlyphSlot_Done, (FT_Size_ResetPointsFunc) T42_Char_Size, (FT_Size_ResetPixelsFunc) T42_Pixel_Size, (FT_Slot_LoadFunc) T42_Load_Glyph, (FT_CharMap_CharIndexFunc)Get_Char_Index, (FT_Face_GetKerningFunc) 0, (FT_Face_AttachFunc) 0, (FT_Face_GetAdvancesFunc) 0, (FT_CharMap_CharNextFunc) Get_Next_Char }; #ifdef FT_CONFIG_OPTION_DYNAMIC_DRIVERS /*************************************************************************/ /* */ /* */ /* getDriverClass */ /* */ /* */ /* This function is used when compiling the TrueType driver as a */ /* shared library (`.DLL' or `.so'). It will be used by the */ /* high-level library of FreeType to retrieve the address of the */ /* driver's generic interface. */ /* */ /* It shouldn't be implemented in a static build, as each driver must */ /* have the same function as an exported entry point. */ /* */ /* */ /* The address of the T42's driver generic interface. The */ /* format-specific interface can then be retrieved through the method */ /* interface->get_format_interface. */ /* */ FT_EXPORT_DEF( const FT_Driver_Class ) getDriverClass( void ) { return &t42_driver_class; } #endif /* FT_CONFIG_OPTION_DYNAMIC_DRIVERS */ /* END */