Index: core/src/fxge/fx_freetype/fxft2.5.01/src/type1/t1parse.c |
diff --git a/core/src/fxge/fx_freetype/fxft2.5.01/src/type1/t1parse.c b/core/src/fxge/fx_freetype/fxft2.5.01/src/type1/t1parse.c |
deleted file mode 100644 |
index 293d69abc8f67052b1cc975e9f61883274e5d4f1..0000000000000000000000000000000000000000 |
--- a/core/src/fxge/fx_freetype/fxft2.5.01/src/type1/t1parse.c |
+++ /dev/null |
@@ -1,497 +0,0 @@ |
-/***************************************************************************/ |
-/* */ |
-/* t1parse.c */ |
-/* */ |
-/* Type 1 parser (body). */ |
-/* */ |
-/* Copyright 1996-2005, 2008, 2009, 2012, 2013 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. */ |
-/* */ |
-/***************************************************************************/ |
- |
- |
- /*************************************************************************/ |
- /* */ |
- /* The Type 1 parser is in charge of the following: */ |
- /* */ |
- /* - provide an implementation of a growing sequence of objects called */ |
- /* a `T1_Table' (used to build various tables needed by the loader). */ |
- /* */ |
- /* - opening .pfb and .pfa files to extract their top-level and private */ |
- /* dictionaries. */ |
- /* */ |
- /* - read numbers, arrays & strings from any dictionary. */ |
- /* */ |
- /* See `t1load.c' to see how data is loaded from the font file. */ |
- /* */ |
- /*************************************************************************/ |
- |
- |
-#include "../../include/ft2build.h" |
-#include "../../include/freetype/internal/ftdebug.h" |
-#include "../../include/freetype/internal/ftstream.h" |
-#include "../../include/freetype/internal/psaux.h" |
- |
-#include "t1parse.h" |
- |
-#include "t1errors.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 trace_t1parse |
- |
- |
- /*************************************************************************/ |
- /*************************************************************************/ |
- /*************************************************************************/ |
- /***** *****/ |
- /***** INPUT STREAM PARSER *****/ |
- /***** *****/ |
- /*************************************************************************/ |
- /*************************************************************************/ |
- /*************************************************************************/ |
- |
- |
- /* see Adobe Technical Note 5040.Download_Fonts.pdf */ |
- |
- static FT_Error |
- read_pfb_tag( FT_Stream stream, |
- FT_UShort *atag, |
- FT_ULong *asize ) |
- { |
- FT_Error error; |
- FT_UShort tag; |
- FT_ULong size; |
- |
- |
- *atag = 0; |
- *asize = 0; |
- |
- if ( !FT_READ_USHORT( tag ) ) |
- { |
- if ( tag == 0x8001U || tag == 0x8002U ) |
- { |
- if ( !FT_READ_ULONG_LE( size ) ) |
- *asize = size; |
- } |
- |
- *atag = tag; |
- } |
- |
- return error; |
- } |
- |
- |
- static FT_Error |
- check_type1_format( FT_Stream stream, |
- const char* header_string, |
- size_t header_length ) |
- { |
- FT_Error error; |
- FT_UShort tag; |
- FT_ULong dummy; |
- |
- |
- if ( FT_STREAM_SEEK( 0 ) ) |
- goto Exit; |
- |
- 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 = FT_Err_Ok; |
- |
- if ( ft_memcmp( stream->cursor, header_string, header_length ) != 0 ) |
- error = FT_THROW( Unknown_File_Format ); |
- |
- FT_FRAME_EXIT(); |
- } |
- |
- Exit: |
- return error; |
- } |
- |
- |
- FT_LOCAL_DEF( FT_Error ) |
- T1_New_Parser( T1_Parser parser, |
- FT_Stream stream, |
- FT_Memory memory, |
- PSAux_Service psaux ) |
- { |
- FT_Error error; |
- FT_UShort tag; |
- FT_ULong size; |
- |
- |
- psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory ); |
- |
- parser->stream = stream; |
- parser->base_len = 0; |
- parser->base_dict = 0; |
- parser->private_len = 0; |
- parser->private_dict = 0; |
- parser->in_pfb = 0; |
- parser->in_memory = 0; |
- parser->single_block = 0; |
- |
- /* check the header format */ |
- error = check_type1_format( stream, "%!PS-AdobeFont", 14 ); |
- if ( error ) |
- { |
- if ( FT_ERR_NEQ( error, Unknown_File_Format ) ) |
- goto Exit; |
- |
- error = check_type1_format( stream, "%!FontType", 10 ); |
- if ( error ) |
- { |
- FT_TRACE2(( " not a Type 1 font\n" )); |
- goto Exit; |
- } |
- } |
- |
- /******************************************************************/ |
- /* */ |
- /* 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 */ |
- /* 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_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 */ |
- if ( FT_STREAM_SEEK( 0L ) ) |
- goto Exit; |
- |
- error = read_pfb_tag( stream, &tag, &size ); |
- if ( error ) |
- goto Exit; |
- |
- if ( tag != 0x8001U ) |
- { |
- /* assume that this is a PFA file for now; an error will */ |
- /* be produced later when more things are checked */ |
- if ( FT_STREAM_SEEK( 0L ) ) |
- goto Exit; |
- size = stream->size; |
- } |
- else |
- parser->in_pfb = 1; |
- |
- /* 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 -- this is clumsy, but so does the format */ |
- 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 ) |
- T1_Finalize_Parser( T1_Parser parser ) |
- { |
- FT_Memory memory = parser->root.memory; |
- |
- |
- /* always free the private dictionary */ |
- FT_FREE( parser->private_dict ); |
- |
- /* 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 ); |
- } |
- |
- |
- FT_LOCAL_DEF( FT_Error ) |
- T1_Get_Private_Dict( T1_Parser parser, |
- PSAux_Service psaux ) |
- { |
- FT_Stream stream = parser->stream; |
- FT_Memory memory = parser->root.memory; |
- FT_Error error = FT_Err_Ok; |
- FT_ULong size; |
- |
- |
- if ( parser->in_pfb ) |
- { |
- /* in the case of the PFB format, the private dictionary can be */ |
- /* made of several segments. We thus first read the number of */ |
- /* segments to compute the total size of the private dictionary */ |
- /* then re-read them into memory. */ |
- FT_Long start_pos = FT_STREAM_POS(); |
- FT_UShort tag; |
- |
- |
- parser->private_len = 0; |
- for (;;) |
- { |
- error = read_pfb_tag( stream, &tag, &size ); |
- if ( error ) |
- goto Fail; |
- |
- if ( tag != 0x8002U ) |
- break; |
- |
- parser->private_len += size; |
- |
- if ( FT_STREAM_SKIP( size ) ) |
- goto Fail; |
- } |
- |
- /* Check that we have a private dictionary there */ |
- /* and allocate private dictionary buffer */ |
- if ( parser->private_len == 0 ) |
- { |
- FT_ERROR(( "T1_Get_Private_Dict:" |
- " invalid private dictionary section\n" )); |
- error = FT_THROW( Invalid_File_Format ); |
- goto Fail; |
- } |
- |
- if ( FT_STREAM_SEEK( start_pos ) || |
- FT_ALLOC( parser->private_dict, parser->private_len ) ) |
- goto Fail; |
- |
- parser->private_len = 0; |
- for (;;) |
- { |
- error = read_pfb_tag( stream, &tag, &size ); |
- if ( error || tag != 0x8002U ) |
- { |
- error = FT_Err_Ok; |
- break; |
- } |
- |
- if ( FT_STREAM_READ( parser->private_dict + parser->private_len, |
- size ) ) |
- goto Fail; |
- |
- parser->private_len += size; |
- } |
- } |
- else |
- { |
- /* We have already `loaded' the whole PFA font file into memory; */ |
- /* if this is a memory resource, allocate a new block to hold */ |
- /* the private dict. Otherwise, simply overwrite into the base */ |
- /* dictionary block in the heap. */ |
- |
- /* first of all, look at the `eexec' keyword */ |
- FT_Byte* cur = parser->base_dict; |
- FT_Byte* limit = cur + parser->base_len; |
- FT_Byte c; |
- |
- |
- Again: |
- for (;;) |
- { |
- c = cur[0]; |
- if ( c == 'e' && cur + 9 < limit ) /* 9 = 5 letters for `eexec' + */ |
- /* whitespace + 4 chars */ |
- { |
- if ( cur[1] == 'e' && |
- cur[2] == 'x' && |
- cur[3] == 'e' && |
- cur[4] == 'c' ) |
- break; |
- } |
- cur++; |
- if ( cur >= limit ) |
- { |
- FT_ERROR(( "T1_Get_Private_Dict:" |
- " could not find `eexec' keyword\n" )); |
- error = FT_THROW( Invalid_File_Format ); |
- goto Exit; |
- } |
- } |
- |
- /* check whether `eexec' was real -- it could be in a comment */ |
- /* or string (as e.g. in u003043t.gsf from ghostscript) */ |
- |
- parser->root.cursor = parser->base_dict; |
- /* set limit to `eexec' + whitespace + 4 characters */ |
- parser->root.limit = cur + 10; |
- |
- cur = parser->root.cursor; |
- limit = parser->root.limit; |
- |
- while ( cur < limit ) |
- { |
- if ( *cur == 'e' && ft_strncmp( (char*)cur, "eexec", 5 ) == 0 ) |
- goto Found; |
- |
- T1_Skip_PS_Token( parser ); |
- if ( parser->root.error ) |
- break; |
- T1_Skip_Spaces ( parser ); |
- cur = parser->root.cursor; |
- } |
- |
- /* we haven't found the correct `eexec'; go back and continue */ |
- /* searching */ |
- |
- cur = limit; |
- limit = parser->base_dict + parser->base_len; |
- goto Again; |
- |
- /* now determine where to write the _encrypted_ binary private */ |
- /* dictionary. We overwrite the base dictionary for disk-based */ |
- /* resources and allocate a new block otherwise */ |
- |
- Found: |
- parser->root.limit = parser->base_dict + parser->base_len; |
- |
- T1_Skip_PS_Token( parser ); |
- cur = parser->root.cursor; |
- limit = parser->root.limit; |
- |
- /* according to the Type1 spec, the first cipher byte must not be */ |
- /* an ASCII whitespace character code (blank, tab, carriage return */ |
- /* or line feed). We have seen Type 1 fonts with two line feed */ |
- /* characters... So skip now all whitespace character codes. */ |
- while ( cur < limit && |
- ( *cur == ' ' || |
- *cur == '\t' || |
- *cur == '\r' || |
- *cur == '\n' ) ) |
- ++cur; |
- if ( cur >= limit ) |
- { |
- FT_ERROR(( "T1_Get_Private_Dict:" |
- " `eexec' not properly terminated\n" )); |
- error = FT_THROW( Invalid_File_Format ); |
- goto Exit; |
- } |
- |
- size = (FT_ULong)( parser->base_len - ( cur - parser->base_dict ) ); |
- |
- if ( parser->in_memory ) |
- { |
- /* note that we allocate one more byte to put a terminating `0' */ |
- if ( FT_ALLOC( parser->private_dict, size + 1 ) ) |
- goto Fail; |
- parser->private_len = size; |
- } |
- else |
- { |
- parser->single_block = 1; |
- parser->private_dict = parser->base_dict; |
- parser->private_len = size; |
- parser->base_dict = 0; |
- parser->base_len = 0; |
- } |
- |
- /* now determine whether the private dictionary is encoded in binary */ |
- /* or hexadecimal ASCII format -- decode it accordingly */ |
- |
- /* we need to access the next 4 bytes (after the final whitespace */ |
- /* following the `eexec' keyword); if they all are hexadecimal */ |
- /* digits, then we have a case of ASCII storage */ |
- |
- if ( cur + 3 < limit && |
- ft_isxdigit( cur[0] ) && ft_isxdigit( cur[1] ) && |
- ft_isxdigit( cur[2] ) && ft_isxdigit( cur[3] ) ) |
- { |
- /* ASCII hexadecimal encoding */ |
- FT_Long len; |
- |
- |
- parser->root.cursor = cur; |
- (void)psaux->ps_parser_funcs->to_bytes( &parser->root, |
- parser->private_dict, |
- parser->private_len, |
- &len, |
- 0 ); |
- parser->private_len = len; |
- |
- /* put a safeguard */ |
- parser->private_dict[len] = '\0'; |
- } |
- else |
- /* binary encoding -- copy the private dict */ |
- FT_MEM_MOVE( parser->private_dict, cur, size ); |
- } |
- |
- /* we now decrypt the encoded binary private dictionary */ |
- psaux->t1_decrypt( parser->private_dict, parser->private_len, 55665U ); |
- |
- if ( parser->private_len < 4 ) |
- { |
- FT_ERROR(( "T1_Get_Private_Dict:" |
- " invalid private dictionary section\n" )); |
- error = FT_THROW( Invalid_File_Format ); |
- goto Fail; |
- } |
- |
- /* replace the four random bytes at the beginning with whitespace */ |
- parser->private_dict[0] = ' '; |
- parser->private_dict[1] = ' '; |
- parser->private_dict[2] = ' '; |
- parser->private_dict[3] = ' '; |
- |
- parser->root.base = parser->private_dict; |
- parser->root.cursor = parser->private_dict; |
- parser->root.limit = parser->root.cursor + parser->private_len; |
- |
- Fail: |
- Exit: |
- return error; |
- } |
- |
- |
-/* END */ |