diff options
Diffstat (limited to 'src/freetype2/type1/t1parse.c')
| -rw-r--r-- | src/freetype2/type1/t1parse.c | 50 |
1 files changed, 27 insertions, 23 deletions
diff --git a/src/freetype2/type1/t1parse.c b/src/freetype2/type1/t1parse.c index 1b252c7..1bef56b 100644 --- a/src/freetype2/type1/t1parse.c +++ b/src/freetype2/type1/t1parse.c @@ -4,7 +4,7 @@ /* */ /* Type 1 parser (body). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2008, 2009 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -35,7 +35,6 @@ #include <ft2build.h> #include FT_INTERNAL_DEBUG_H -#include FT_INTERNAL_CALC_H #include FT_INTERNAL_STREAM_H #include FT_INTERNAL_POSTSCRIPT_AUX_H @@ -65,14 +64,16 @@ /*************************************************************************/ + /* see Adobe Technical Note 5040.Download_Fonts.pdf */ + static FT_Error read_pfb_tag( FT_Stream stream, FT_UShort *atag, - FT_Long *asize ) + FT_ULong *asize ) { FT_Error error; FT_UShort tag; - FT_Long size; + FT_ULong size; *atag = 0; @@ -82,7 +83,7 @@ { if ( tag == 0x8001U || tag == 0x8002U ) { - if ( !FT_READ_LONG_LE( size ) ) + if ( !FT_READ_ULONG_LE( size ) ) *asize = size; } @@ -100,22 +101,25 @@ { FT_Error error; FT_UShort tag; - FT_Long size; + FT_ULong dummy; if ( FT_STREAM_SEEK( 0 ) ) goto Exit; - error = read_pfb_tag( stream, &tag, &size ); + error = read_pfb_tag( stream, &tag, &dummy ); if ( error ) goto Exit; + /* We assume that the first segment in a PFB is always encoded as */ + /* text. This might be wrong (and the specification doesn't insist */ + /* on that), but we have never seen a counterexample. */ if ( tag != 0x8001U && FT_STREAM_SEEK( 0 ) ) goto Exit; if ( !FT_FRAME_ENTER( header_length ) ) { - error = 0; + error = T1_Err_Ok; if ( ft_memcmp( stream->cursor, header_string, header_length ) != 0 ) error = T1_Err_Unknown_File_Format; @@ -136,7 +140,7 @@ { FT_Error error; FT_UShort tag; - FT_Long size; + FT_ULong size; psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory ); @@ -170,19 +174,19 @@ /* Here a short summary of what is going on: */ /* */ /* When creating a new Type 1 parser, we try to locate and load */ - /* the base dictionary if this is possible (i.e. for PFB */ + /* the base dictionary if this is possible (i.e., for PFB */ /* files). Otherwise, we load 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_pfb is set if we are in a binary (".pfb") font. */ + /* parser->in_pfb is set if we are in a binary (`.pfb') font. */ /* parser->in_memory is set if we have a memory stream. */ /* */ - /* try to compute the size of the base dictionary; */ - /* look for a Postscript binary file tag, i.e 0x8001 */ + /* try to compute the size of the base dictionary; */ + /* look for a Postscript binary file tag, i.e., 0x8001 */ if ( FT_STREAM_SEEK( 0L ) ) goto Exit; @@ -217,7 +221,7 @@ } else { - /* read segment in memory - this is clumsy, but so does the format */ + /* read segment in memory -- this is clumsy, but so does the format */ if ( FT_ALLOC( parser->base_dict, size ) || FT_STREAM_READ( parser->base_dict, size ) ) goto Exit; @@ -260,7 +264,7 @@ FT_Stream stream = parser->stream; FT_Memory memory = parser->root.memory; FT_Error error = T1_Err_Ok; - FT_Long size; + FT_ULong size; if ( parser->in_pfb ) @@ -293,13 +297,13 @@ /* and allocate private dictionary buffer */ if ( parser->private_len == 0 ) { - FT_ERROR(( "T1_Get_Private_Dict:" )); - FT_ERROR(( " invalid private dictionary section\n" )); + FT_ERROR(( "T1_Get_Private_Dict:" + " invalid private dictionary section\n" )); error = T1_Err_Invalid_File_Format; goto Fail; } - if ( FT_STREAM_SEEK( start_pos ) || + if ( FT_STREAM_SEEK( start_pos ) || FT_ALLOC( parser->private_dict, parser->private_len ) ) goto Fail; @@ -349,8 +353,8 @@ cur++; if ( cur >= limit ) { - FT_ERROR(( "T1_Get_Private_Dict:" )); - FT_ERROR(( " could not find `eexec' keyword\n" )); + FT_ERROR(( "T1_Get_Private_Dict:" + " could not find `eexec' keyword\n" )); error = T1_Err_Invalid_File_Format; goto Exit; } @@ -403,13 +407,13 @@ cur++; else { - FT_ERROR(( "T1_Get_Private_Dict:" )); - FT_ERROR(( " `eexec' not properly terminated\n" )); + FT_ERROR(( "T1_Get_Private_Dict:" + " `eexec' not properly terminated\n" )); error = T1_Err_Invalid_File_Format; goto Exit; } - size = (FT_Long)( parser->base_len - ( cur - parser->base_dict ) ); + size = parser->base_len - ( cur - parser->base_dict ); if ( parser->in_memory ) { |