summaryrefslogtreecommitdiff
path: root/Build/source/libs/freetype2/freetype-src/src/type42/t42parse.c
diff options
context:
space:
mode:
authorDenis Bitouzé <dbitouze@wanadoo.fr>2021-02-25 18:23:07 +0000
committerDenis Bitouzé <dbitouze@wanadoo.fr>2021-02-25 18:23:07 +0000
commitc6101f91d071883b48b1b4b51e5eba0f36d9a78d (patch)
tree1bf7f5a881d7a4f5c5bf59d0b2821943dd822372 /Build/source/libs/freetype2/freetype-src/src/type42/t42parse.c
parent07ee7222e389b0777456b427a55c22d0e6ffd267 (diff)
French translation for tlmgr updated
git-svn-id: svn://tug.org/texlive/trunk@57912 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/freetype2/freetype-src/src/type42/t42parse.c')
-rw-r--r--Build/source/libs/freetype2/freetype-src/src/type42/t42parse.c1309
1 files changed, 0 insertions, 1309 deletions
diff --git a/Build/source/libs/freetype2/freetype-src/src/type42/t42parse.c b/Build/source/libs/freetype2/freetype-src/src/type42/t42parse.c
deleted file mode 100644
index 98507699fad..00000000000
--- a/Build/source/libs/freetype2/freetype-src/src/type42/t42parse.c
+++ /dev/null
@@ -1,1309 +0,0 @@
-/****************************************************************************
- *
- * t42parse.c
- *
- * Type 42 font parser (body).
- *
- * Copyright (C) 2002-2020 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 "t42parse.h"
-#include "t42error.h"
-#include <freetype/internal/ftdebug.h>
-#include <freetype/internal/ftstream.h>
-#include <freetype/internal/psaux.h>
-
-
- /**************************************************************************
- *
- * The macro FT_COMPONENT is used in trace mode. It is an implicit
- * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
- * messages during execution.
- */
-#undef FT_COMPONENT
-#define FT_COMPONENT t42
-
-
- static void
- t42_parse_font_matrix( T42_Face face,
- T42_Loader loader );
- static void
- t42_parse_encoding( T42_Face face,
- T42_Loader loader );
-
- static void
- t42_parse_charstrings( T42_Face face,
- T42_Loader loader );
-
- static void
- t42_parse_sfnts( T42_Face face,
- T42_Loader loader );
-
-
- /* as Type42 fonts have no Private dict, */
- /* we set the last argument of T1_FIELD_XXX to 0 */
- 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, 0 )
- T1_FIELD_STRING( "Notice", notice, 0 )
- T1_FIELD_STRING( "FullName", full_name, 0 )
- T1_FIELD_STRING( "FamilyName", family_name, 0 )
- T1_FIELD_STRING( "Weight", weight, 0 )
- T1_FIELD_NUM ( "ItalicAngle", italic_angle, 0 )
- T1_FIELD_BOOL ( "isFixedPitch", is_fixed_pitch, 0 )
- T1_FIELD_NUM ( "UnderlinePosition", underline_position, 0 )
- T1_FIELD_NUM ( "UnderlineThickness", underline_thickness, 0 )
-
-#undef FT_STRUCTURE
-#define FT_STRUCTURE PS_FontExtraRec
-#undef T1CODE
-#define T1CODE T1_FIELD_LOCATION_FONT_EXTRA
-
- T1_FIELD_NUM ( "FSType", fs_type, 0 )
-
-#undef FT_STRUCTURE
-#define FT_STRUCTURE T1_FontRec
-#undef T1CODE
-#define T1CODE T1_FIELD_LOCATION_FONT_DICT
-
- T1_FIELD_KEY ( "FontName", font_name, 0 )
- T1_FIELD_NUM ( "PaintType", paint_type, 0 )
- T1_FIELD_NUM ( "FontType", font_type, 0 )
- T1_FIELD_FIXED( "StrokeWidth", stroke_width, 0 )
-
-#undef FT_STRUCTURE
-#define FT_STRUCTURE FT_BBox
-#undef T1CODE
-#define T1CODE T1_FIELD_LOCATION_BBOX
-
- T1_FIELD_BBOX("FontBBox", xMin, 0 )
-
- T1_FIELD_CALLBACK( "FontMatrix", t42_parse_font_matrix, 0 )
- T1_FIELD_CALLBACK( "Encoding", t42_parse_encoding, 0 )
- T1_FIELD_CALLBACK( "CharStrings", t42_parse_charstrings, 0 )
- T1_FIELD_CALLBACK( "sfnts", t42_parse_sfnts, 0 )
-
- { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 }
- };
-
-
-#define T1_Add_Table( p, i, o, l ) (p)->funcs.add( (p), i, o, l )
-#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_PS_Token( p ) (p)->root.funcs.skip_PS_token( &(p)->root )
-
-#define T1_ToInt( p ) \
- (p)->root.funcs.to_int( &(p)->root )
-#define T1_ToBytes( p, b, m, n, d ) \
- (p)->root.funcs.to_bytes( &(p)->root, b, m, n, d )
-
-#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_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 ******************/
-
- FT_LOCAL_DEF( FT_Error )
- t42_parser_init( T42_Parser parser,
- FT_Stream stream,
- FT_Memory memory,
- PSAux_Service psaux )
- {
- FT_Error error = FT_Err_Ok;
- FT_Long size;
-
-
- psaux->ps_parser_funcs->init( &parser->root, NULL, NULL, memory );
-
- parser->stream = stream;
- parser->base_len = 0;
- parser->base_dict = NULL;
- 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 set up 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 ) ||
- FT_FRAME_ENTER( 17 ) )
- goto Exit;
-
- if ( ft_memcmp( stream->cursor, "%!PS-TrueTypeFont", 17 ) != 0 )
- {
- FT_TRACE2(( " not a Type42 font\n" ));
- error = FT_THROW( Unknown_File_Format );
- }
-
- FT_FRAME_EXIT();
-
- if ( error || FT_STREAM_SEEK( 0 ) )
- goto Exit;
-
- size = (FT_Long)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;
- }
-
- 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;
- }
-
-
- FT_LOCAL_DEF( void )
- t42_parser_done( 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 );
-
- if ( parser->root.funcs.done )
- parser->root.funcs.done( &parser->root );
- }
-
-
- static int
- t42_is_space( FT_Byte c )
- {
- return ( c == ' ' || c == '\t' ||
- c == '\r' || c == '\n' || c == '\f' ||
- c == '\0' );
- }
-
-
- static void
- t42_parse_font_matrix( T42_Face face,
- T42_Loader loader )
- {
- T42_Parser parser = &loader->parser;
- FT_Matrix* matrix = &face->type1.font_matrix;
- FT_Vector* offset = &face->type1.font_offset;
- FT_Fixed temp[6];
- FT_Fixed temp_scale;
- FT_Int result;
-
-
- result = T1_ToFixedArray( parser, 6, temp, 0 );
-
- if ( result < 6 )
- {
- parser->root.error = FT_THROW( Invalid_File_Format );
- return;
- }
-
- temp_scale = FT_ABS( temp[3] );
-
- if ( temp_scale == 0 )
- {
- FT_ERROR(( "t42_parse_font_matrix: invalid font matrix\n" ));
- parser->root.error = FT_THROW( Invalid_File_Format );
- return;
- }
-
- /* atypical case */
- 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] = temp[3] < 0 ? -0x10000L : 0x10000L;
- }
-
- matrix->xx = temp[0];
- matrix->yx = temp[1];
- matrix->xy = temp[2];
- matrix->yy = temp[3];
-
- if ( !FT_Matrix_Check( matrix ) )
- {
- FT_ERROR(( "t42_parse_font_matrix: invalid font matrix\n" ));
- parser->root.error = FT_THROW( Invalid_File_Format );
- return;
- }
-
- /* note that the offsets must be expressed in integer font units */
- offset->x = temp[4] >> 16;
- offset->y = temp[5] >> 16;
- }
-
-
- static void
- t42_parse_encoding( T42_Face face,
- T42_Loader loader )
- {
- T42_Parser parser = &loader->parser;
- FT_Byte* cur;
- FT_Byte* limit = parser->root.limit;
-
- PSAux_Service psaux = (PSAux_Service)face->psaux;
-
-
- T1_Skip_Spaces( parser );
- cur = parser->root.cursor;
- if ( cur >= limit )
- {
- FT_ERROR(( "t42_parse_encoding: out of bounds\n" ));
- parser->root.error = FT_THROW( Invalid_File_Format );
- return;
- }
-
- /* if we have a number or `[', the encoding is an array, */
- /* and we must load it now */
- if ( ft_isdigit( *cur ) || *cur == '[' )
- {
- T1_Encoding encode = &face->type1.encoding;
- FT_Int count, n;
- PS_Table char_table = &loader->encoding_table;
- FT_Memory memory = parser->root.memory;
- FT_Error error;
- FT_Bool only_immediates = 0;
-
-
- /* read the number of entries in the encoding; should be 256 */
- if ( *cur == '[' )
- {
- count = 256;
- only_immediates = 1;
- parser->root.cursor++;
- }
- else
- count = (FT_Int)T1_ToInt( parser );
-
- /* only composite fonts (which we don't support) */
- /* can have larger values */
- if ( count > 256 )
- {
- FT_ERROR(( "t42_parse_encoding: invalid encoding array size\n" ));
- parser->root.error = FT_THROW( Invalid_File_Format );
- return;
- }
-
- T1_Skip_Spaces( parser );
- if ( parser->root.cursor >= limit )
- return;
-
- /* PostScript happily allows overwriting of encoding arrays */
- if ( encode->char_index )
- {
- FT_FREE( encode->char_index );
- FT_FREE( encode->char_name );
- T1_Release_Table( char_table );
- }
-
- /* 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++ )
- (void)T1_Add_Table( char_table, n, ".notdef", 8 );
-
- /* Now we need to read records 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 type42 fonts: */
- /* */
- /* 0 1 255 { 1 index exch /.notdef put } for dup */
- /* */
- /* used to clean the encoding array before anything else. */
- /* */
- /* Alternatively, if the array is directly given as */
- /* */
- /* /Encoding [ ... ] */
- /* */
- /* we only read immediates. */
-
- n = 0;
- T1_Skip_Spaces( parser );
-
- while ( parser->root.cursor < limit )
- {
- cur = parser->root.cursor;
-
- /* we stop when we encounter `def' or `]' */
- if ( *cur == 'd' && cur + 3 < limit )
- {
- if ( cur[1] == 'e' &&
- cur[2] == 'f' &&
- t42_is_space( cur[3] ) )
- {
- FT_TRACE6(( "encoding end\n" ));
- cur += 3;
- break;
- }
- }
- if ( *cur == ']' )
- {
- FT_TRACE6(( "encoding end\n" ));
- cur++;
- break;
- }
-
- /* check whether we have found an entry */
- if ( ft_isdigit( *cur ) || only_immediates )
- {
- FT_Int charcode;
-
-
- if ( only_immediates )
- charcode = n;
- else
- {
- charcode = (FT_Int)T1_ToInt( parser );
- T1_Skip_Spaces( parser );
-
- /* protect against invalid charcode */
- if ( cur == parser->root.cursor )
- {
- parser->root.error = FT_THROW( Unknown_File_Format );
- return;
- }
- }
-
- cur = parser->root.cursor;
-
- if ( cur + 2 < limit && *cur == '/' && n < count )
- {
- FT_UInt len;
-
-
- cur++;
-
- parser->root.cursor = cur;
- T1_Skip_PS_Token( parser );
- if ( parser->root.cursor >= limit )
- return;
- if ( parser->root.error )
- return;
-
- len = (FT_UInt)( parser->root.cursor - cur );
-
- parser->root.error = T1_Add_Table( char_table, charcode,
- cur, len + 1 );
- if ( parser->root.error )
- return;
- char_table->elements[charcode][len] = '\0';
-
- n++;
- }
- else if ( only_immediates )
- {
- /* Since the current position is not updated for */
- /* immediates-only mode we would get an infinite loop if */
- /* we don't do anything here. */
- /* */
- /* This encoding array is not valid according to the */
- /* type42 specification (it might be an encoding for a CID */
- /* type42 font, however), so we conclude that this font is */
- /* NOT a type42 font. */
- parser->root.error = FT_THROW( Unknown_File_Format );
- return;
- }
- }
- else
- {
- T1_Skip_PS_Token( parser );
- if ( parser->root.error )
- return;
- }
-
- T1_Skip_Spaces( parser );
- }
-
- face->type1.encoding_type = T1_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->type1.encoding_type = T1_ENCODING_TYPE_STANDARD;
-
- else if ( cur + 15 < limit &&
- ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 )
- face->type1.encoding_type = T1_ENCODING_TYPE_EXPERT;
-
- else if ( cur + 18 < limit &&
- ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 )
- face->type1.encoding_type = T1_ENCODING_TYPE_ISOLATIN1;
-
- else
- parser->root.error = FT_ERR( Ignore );
- }
- }
-
-
- typedef enum T42_Load_Status_
- {
- BEFORE_START,
- BEFORE_TABLE_DIR,
- OTHER_TABLES
-
- } T42_Load_Status;
-
-
- static void
- t42_parse_sfnts( T42_Face face,
- T42_Loader loader )
- {
- T42_Parser parser = &loader->parser;
- FT_Memory memory = parser->root.memory;
- FT_Byte* cur;
- FT_Byte* limit = parser->root.limit;
- FT_Error error;
- FT_Int num_tables = 0;
- FT_Long count;
-
- FT_ULong n, string_size, old_string_size, real_size;
- FT_Byte* string_buf = NULL;
- FT_Bool allocated = 0;
-
- T42_Load_Status status;
-
-
- /* The format is */
- /* */
- /* /sfnts [ <hexstring> <hexstring> ... ] def */
- /* */
- /* or */
- /* */
- /* /sfnts [ */
- /* <num_bin_bytes> RD <binary data> */
- /* <num_bin_bytes> RD <binary data> */
- /* ... */
- /* ] def */
- /* */
- /* with exactly one space after the `RD' token. */
-
- T1_Skip_Spaces( parser );
-
- if ( parser->root.cursor >= limit || *parser->root.cursor++ != '[' )
- {
- FT_ERROR(( "t42_parse_sfnts: can't find begin of sfnts vector\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- T1_Skip_Spaces( parser );
- status = BEFORE_START;
- string_size = 0;
- old_string_size = 0;
- count = 0;
-
- while ( parser->root.cursor < limit )
- {
- FT_ULong size;
-
-
- cur = parser->root.cursor;
-
- if ( *cur == ']' )
- {
- parser->root.cursor++;
- goto Exit;
- }
-
- else if ( *cur == '<' )
- {
- if ( string_buf && !allocated )
- {
- FT_ERROR(( "t42_parse_sfnts: "
- "can't handle mixed binary and hex strings\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- T1_Skip_PS_Token( parser );
- if ( parser->root.error )
- goto Exit;
-
- /* don't include delimiters */
- string_size = (FT_ULong)( ( parser->root.cursor - cur - 2 + 1 ) / 2 );
- if ( !string_size )
- {
- FT_ERROR(( "t42_parse_sfnts: invalid data in sfnts array\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
- if ( FT_REALLOC( string_buf, old_string_size, string_size ) )
- goto Fail;
-
- allocated = 1;
-
- parser->root.cursor = cur;
- (void)T1_ToBytes( parser, string_buf, string_size, &real_size, 1 );
- old_string_size = string_size;
- string_size = real_size;
- }
-
- else if ( ft_isdigit( *cur ) )
- {
- FT_Long tmp;
-
-
- if ( allocated )
- {
- FT_ERROR(( "t42_parse_sfnts: "
- "can't handle mixed binary and hex strings\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- tmp = T1_ToInt( parser );
- if ( tmp < 0 )
- {
- FT_ERROR(( "t42_parse_sfnts: invalid string size\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
- else
- string_size = (FT_ULong)tmp;
-
- T1_Skip_PS_Token( parser ); /* `RD' */
- if ( parser->root.error )
- return;
-
- string_buf = parser->root.cursor + 1; /* one space after `RD' */
-
- if ( (FT_ULong)( limit - parser->root.cursor ) <= string_size )
- {
- FT_ERROR(( "t42_parse_sfnts: too much binary data\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
- else
- parser->root.cursor += string_size + 1;
- }
-
- if ( !string_buf )
- {
- FT_ERROR(( "t42_parse_sfnts: invalid data in sfnts array\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- /* A string can have a trailing zero (odd) byte for padding. */
- /* Ignore it. */
- if ( ( string_size & 1 ) && string_buf[string_size - 1] == 0 )
- string_size--;
-
- if ( !string_size )
- {
- FT_ERROR(( "t42_parse_sfnts: invalid string\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- /* The whole TTF is now loaded into `string_buf'. We are */
- /* checking its contents while copying it to `ttf_data'. */
-
- size = (FT_ULong)( limit - parser->root.cursor );
-
- for ( n = 0; n < string_size; n++ )
- {
- switch ( status )
- {
- case BEFORE_START:
- /* load offset table, 12 bytes */
- if ( count < 12 )
- {
- face->ttf_data[count++] = string_buf[n];
- continue;
- }
- else
- {
- num_tables = 16 * face->ttf_data[4] + face->ttf_data[5];
- status = BEFORE_TABLE_DIR;
- face->ttf_size = 12 + 16 * num_tables;
-
- if ( (FT_Long)size < face->ttf_size )
- {
- FT_ERROR(( "t42_parse_sfnts: invalid data in sfnts array\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- if ( FT_REALLOC( face->ttf_data, 12, face->ttf_size ) )
- goto Fail;
- }
- /* fall through */
-
- case BEFORE_TABLE_DIR:
- /* the offset table is read; read the table directory */
- if ( count < face->ttf_size )
- {
- face->ttf_data[count++] = string_buf[n];
- continue;
- }
- else
- {
- int i;
- FT_ULong len;
-
-
- for ( i = 0; i < num_tables; i++ )
- {
- FT_Byte* p = face->ttf_data + 12 + 16 * i + 12;
-
-
- len = FT_PEEK_ULONG( p );
- if ( len > size ||
- face->ttf_size > (FT_Long)( size - len ) )
- {
- FT_ERROR(( "t42_parse_sfnts:"
- " invalid data in sfnts array\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- /* Pad to a 4-byte boundary length */
- face->ttf_size += (FT_Long)( ( len + 3 ) & ~3U );
- }
-
- status = OTHER_TABLES;
-
- if ( FT_REALLOC( face->ttf_data, 12 + 16 * num_tables,
- face->ttf_size + 1 ) )
- goto Fail;
- }
- /* fall through */
-
- case OTHER_TABLES:
- /* all other tables are just copied */
- if ( count >= face->ttf_size )
- {
- FT_ERROR(( "t42_parse_sfnts: too much binary data\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
- face->ttf_data[count++] = string_buf[n];
- }
- }
-
- T1_Skip_Spaces( parser );
- }
-
- /* if control reaches this point, the format was not valid */
- error = FT_THROW( Invalid_File_Format );
-
- Fail:
- parser->root.error = error;
-
- Exit:
- if ( allocated )
- FT_FREE( string_buf );
- }
-
-
- static void
- t42_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;
- PS_Table swap_table = &loader->swap_table;
- 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;
- FT_Int notdef_index = 0;
- FT_Byte notdef_found = 0;
-
-
- T1_Skip_Spaces( parser );
-
- if ( parser->root.cursor >= limit )
- {
- FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- if ( ft_isdigit( *parser->root.cursor ) )
- {
- loader->num_glyphs = T1_ToInt( parser );
- if ( parser->root.error )
- return;
- if ( loader->num_glyphs < 0 )
- {
- FT_ERROR(( "t42_parse_encoding: invalid number of glyphs\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- /* we certainly need more than 4 bytes per glyph */
- if ( loader->num_glyphs > ( limit - parser->root.cursor ) >> 2 )
- {
- FT_TRACE0(( "t42_parse_charstrings: adjusting number of glyphs"
- " (from %d to %ld)\n",
- loader->num_glyphs,
- ( limit - parser->root.cursor ) >> 2 ));
- loader->num_glyphs = ( limit - parser->root.cursor ) >> 2;
- }
-
- }
- else if ( *parser->root.cursor == '<' )
- {
- /* We have `<< ... >>'. Count the number of `/' in the dictionary */
- /* to get its size. */
- FT_Int count = 0;
-
-
- T1_Skip_PS_Token( parser );
- if ( parser->root.error )
- return;
- T1_Skip_Spaces( parser );
- cur = parser->root.cursor;
-
- while ( parser->root.cursor < limit )
- {
- if ( *parser->root.cursor == '/' )
- count++;
- else if ( *parser->root.cursor == '>' )
- {
- loader->num_glyphs = count;
- parser->root.cursor = cur; /* rewind */
- break;
- }
- T1_Skip_PS_Token( parser );
- if ( parser->root.error )
- return;
- T1_Skip_Spaces( parser );
- }
- }
- else
- {
- FT_ERROR(( "t42_parse_charstrings: invalid token\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- if ( parser->root.cursor >= limit )
- {
- FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- /* initialize tables */
-
- /* contrary to Type1, we disallow multiple CharStrings arrays */
- if ( swap_table->init )
- {
- FT_ERROR(( "t42_parse_charstrings:"
- " only one CharStrings array allowed\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- 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;
-
- /* Initialize table for swapping index notdef_index and */
- /* index 0 names and codes (if necessary). */
-
- error = psaux->ps_table_funcs->init( swap_table, 4, memory );
- if ( error )
- goto Fail;
-
- n = 0;
-
- for (;;)
- {
- /* We support two formats. */
- /* */
- /* `/glyphname' + index [+ `def'] */
- /* `(glyphname)' [+ `cvn'] + index [+ `def'] */
- /* */
- /* The latter format gets created by the */
- /* LilyPond typesetting program. */
-
- T1_Skip_Spaces( parser );
-
- cur = parser->root.cursor;
- if ( cur >= limit )
- break;
-
- /* We stop when we find an `end' keyword or '>' */
- if ( *cur == 'e' &&
- cur + 3 < limit &&
- cur[1] == 'n' &&
- cur[2] == 'd' &&
- t42_is_space( cur[3] ) )
- break;
- if ( *cur == '>' )
- break;
-
- T1_Skip_PS_Token( parser );
- if ( parser->root.cursor >= limit )
- {
- FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
- if ( parser->root.error )
- return;
-
- if ( *cur == '/' || *cur == '(' )
- {
- FT_UInt len;
- FT_Bool have_literal = FT_BOOL( *cur == '(' );
-
-
- if ( cur + ( have_literal ? 3 : 2 ) >= limit )
- {
- FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- cur++; /* skip `/' */
- len = (FT_UInt)( parser->root.cursor - cur );
- if ( have_literal )
- len--;
-
- error = T1_Add_Table( name_table, n, cur, len + 1 );
- if ( error )
- goto Fail;
-
- /* add a trailing zero to the name table */
- name_table->elements[n][len] = '\0';
-
- /* record index of /.notdef */
- if ( *cur == '.' &&
- ft_strcmp( ".notdef",
- (const char*)(name_table->elements[n]) ) == 0 )
- {
- notdef_index = n;
- notdef_found = 1;
- }
-
- T1_Skip_Spaces( parser );
-
- if ( have_literal )
- T1_Skip_PS_Token( parser );
-
- cur = parser->root.cursor;
-
- (void)T1_ToInt( parser );
- if ( parser->root.cursor >= limit )
- {
- FT_ERROR(( "t42_parse_charstrings: out of bounds\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- len = (FT_UInt)( parser->root.cursor - 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;
- }
- }
-
- loader->num_glyphs = n;
-
- if ( !notdef_found )
- {
- FT_ERROR(( "t42_parse_charstrings: no /.notdef glyph\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Fail;
- }
-
- /* if /.notdef does not occupy index 0, do our magic. */
- if ( ft_strcmp( ".notdef", (const char*)name_table->elements[0] ) )
- {
- /* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */
- /* name and code entries to swap_table. Then place notdef_index */
- /* name and code entries into swap_table. Then swap name and code */
- /* entries at indices notdef_index and 0 using values stored in */
- /* swap_table. */
-
- /* Index 0 name */
- error = T1_Add_Table( swap_table, 0,
- name_table->elements[0],
- name_table->lengths [0] );
- if ( error )
- goto Fail;
-
- /* Index 0 code */
- error = T1_Add_Table( swap_table, 1,
- code_table->elements[0],
- code_table->lengths [0] );
- if ( error )
- goto Fail;
-
- /* Index notdef_index name */
- error = T1_Add_Table( swap_table, 2,
- name_table->elements[notdef_index],
- name_table->lengths [notdef_index] );
- if ( error )
- goto Fail;
-
- /* Index notdef_index code */
- error = T1_Add_Table( swap_table, 3,
- code_table->elements[notdef_index],
- code_table->lengths [notdef_index] );
- if ( error )
- goto Fail;
-
- error = T1_Add_Table( name_table, notdef_index,
- swap_table->elements[0],
- swap_table->lengths [0] );
- if ( error )
- goto Fail;
-
- error = T1_Add_Table( code_table, notdef_index,
- swap_table->elements[1],
- swap_table->lengths [1] );
- if ( error )
- goto Fail;
-
- error = T1_Add_Table( name_table, 0,
- swap_table->elements[2],
- swap_table->lengths [2] );
- if ( error )
- goto Fail;
-
- error = T1_Add_Table( code_table, 0,
- swap_table->elements[3],
- swap_table->lengths [3] );
- if ( error )
- goto Fail;
-
- }
-
- 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->type1.font_info;
- break;
-
- case T1_FIELD_LOCATION_FONT_EXTRA:
- dummy_object = &face->type1.font_extra;
- break;
-
- case T1_FIELD_LOCATION_BBOX:
- dummy_object = &face->type1.font_bbox;
- break;
-
- default:
- dummy_object = &face->type1;
- }
-
- 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;
- }
-
-
- FT_LOCAL_DEF( FT_Error )
- t42_parse_dict( T42_Face face,
- T42_Loader loader,
- FT_Byte* base,
- FT_Long size )
- {
- T42_Parser parser = &loader->parser;
- FT_Byte* limit;
- FT_Int n_keywords = (FT_Int)( sizeof ( t42_keywords ) /
- sizeof ( t42_keywords[0] ) );
-
-
- parser->root.cursor = base;
- parser->root.limit = base + size;
- parser->root.error = FT_Err_Ok;
-
- limit = parser->root.limit;
-
- T1_Skip_Spaces( parser );
-
- while ( parser->root.cursor < limit )
- {
- FT_Byte* cur;
-
-
- cur = parser->root.cursor;
-
- /* look for `FontDirectory' which causes problems for some fonts */
- if ( *cur == 'F' && cur + 25 < limit &&
- ft_strncmp( (char*)cur, "FontDirectory", 13 ) == 0 )
- {
- FT_Byte* cur2;
-
-
- /* skip the `FontDirectory' keyword */
- T1_Skip_PS_Token( parser );
- T1_Skip_Spaces ( parser );
- cur = cur2 = parser->root.cursor;
-
- /* look up the `known' keyword */
- while ( cur < limit )
- {
- if ( *cur == 'k' && cur + 5 < limit &&
- ft_strncmp( (char*)cur, "known", 5 ) == 0 )
- break;
-
- T1_Skip_PS_Token( parser );
- if ( parser->root.error )
- goto Exit;
- T1_Skip_Spaces ( parser );
- cur = parser->root.cursor;
- }
-
- if ( cur < limit )
- {
- T1_TokenRec token;
-
-
- /* skip the `known' keyword and the token following it */
- T1_Skip_PS_Token( parser );
- T1_ToToken( parser, &token );
-
- /* if the last token was an array, skip it! */
- if ( token.type == T1_TOKEN_TYPE_ARRAY )
- cur2 = parser->root.cursor;
- }
- parser->root.cursor = cur2;
- }
-
- /* look for immediates */
- else if ( *cur == '/' && cur + 2 < limit )
- {
- FT_UInt len;
-
-
- cur++;
-
- parser->root.cursor = cur;
- T1_Skip_PS_Token( parser );
- if ( parser->root.error )
- goto Exit;
-
- len = (FT_UInt)( parser->root.cursor - cur );
-
- if ( len > 0 && len < 22 && parser->root.cursor < limit )
- {
- int i;
-
-
- /* 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 ( cur[0] == name[0] &&
- len == ft_strlen( (const char *)name ) &&
- ft_memcmp( cur, name, len ) == 0 )
- {
- /* we found it -- run the parsing callback! */
- parser->root.error = t42_load_keyword( face,
- loader,
- keyword );
- if ( parser->root.error )
- return parser->root.error;
- break;
- }
- }
- }
- }
- else
- {
- T1_Skip_PS_Token( parser );
- if ( parser->root.error )
- goto Exit;
- }
-
- T1_Skip_Spaces( parser );
- }
-
- Exit:
- return parser->root.error;
- }
-
-
- FT_LOCAL_DEF( void )
- t42_loader_init( T42_Loader loader,
- T42_Face face )
- {
- FT_UNUSED( face );
-
- FT_ZERO( 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;
- }
-
-
- FT_LOCAL_DEF( void )
- t42_loader_done( 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 );
- T1_Release_Table( &loader->swap_table );
-
- /* finalize parser */
- t42_parser_done( parser );
- }
-
-
-/* END */