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freetype2
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Code Issues 4 Releases Wiki Activity

Add support for the hexadicimal representation of binary data 

started with `StartData' in CID-keyed Type 1 fonts.

* include/freetype/internal/t1types.h (CID_FaceRec): Add new
members `binary_data' and `cid_stream'.

* src/cid/cidload.c (cid_read_subrs): Use `face->cid_stream'.
(cid_hex_to_binary): New auxiliary function.
(cid_face_open): Add new argument `face_index' to return quickly
if less than zero.  Updated all callers.
Call `cid_hex_to_binary', then open and assign memory stream to
`face->cid_stream' if `parser->binary_length' is non-zero.
* src/cid/cidload.h: Updated.

* src/cid/cidobjs.c (cid_face_done): Free `binary_data' and
`cid_stream'.

* src/cid/cidparse.c (cid_parser_new): Check arguments to
`StartData' and set parser->binary_length accordingly.
* src/cid/cidparse.h (CID_Parser): New member `binary_length'.

* src/cid/cidgload.c (cid_load_glyph): Use `face->cid_stream'.

* docs/CHANGES: Updated.


include/freetype/config/ftstdlib.h (ft_atoi): Replaced with...
(ft_atol): This.
* src/base/ftdbgmem.c: s/atol/ft_atol/.
* src/type42/t42drivr.c: s/ft_atoi/ft_atol/.
This commit is contained in:
Werner Lemberg 2004-01-23 19:52:40 +00:00
parent 6cda9c489d
commit ef512e3ec6
12 changed files with 200 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
ChangeLog
View File

@ -1,3 +1,37 @@
2004-01-22 Werner Lemberg <wl@gnu.org>
Add support for the hexadicimal representation of binary data
started with `StartData' in CID-keyed Type 1 fonts.
* include/freetype/internal/t1types.h (CID_FaceRec): Add new
members `binary_data' and `cid_stream'.
* src/cid/cidload.c (cid_read_subrs): Use `face->cid_stream'.
(cid_hex_to_binary): New auxiliary function.
(cid_face_open): Add new argument `face_index' to return quickly
if less than zero. Updated all callers.
Call `cid_hex_to_binary', then open and assign memory stream to
`face->cid_stream' if `parser->binary_length' is non-zero.
* src/cid/cidload.h: Updated.
* src/cid/cidobjs.c (cid_face_done): Free `binary_data' and
`cid_stream'.
* src/cid/cidparse.c (cid_parser_new): Check arguments to
`StartData' and set parser->binary_length accordingly.
* src/cid/cidparse.h (CID_Parser): New member `binary_length'.
* src/cid/cidgload.c (cid_load_glyph): Use `face->cid_stream'.
* docs/CHANGES: Updated.
2004-01-21 Werner Lemberg <wl@gnu.org>
include/freetype/config/ftstdlib.h (ft_atoi): Replaced with...
(ft_atol): This.
* src/base/ftdbgmem.c: s/atol/ft_atol/.
* src/type42/t42drivr.c: s/ft_atoi/ft_atol/.
2004-01-20 Masatake YAMATO <jet@gyve.org>
* include/freetype/ftcache.h: Delete duplicated definition of

5
docs/CHANGES
View File

@ -38,6 +38,11 @@ LATEST CHANGES BETWEEN 2.1.8 and 2.1.7
`tttables.h') is available to get the language ID of a
TrueType/SFNT cmap.
- The hexadecimal format of data after the `StartData' command in
CID-keyed Type 1 fonts is now supported. While this can't occur
in file-based fonts, it can happen in document-embedded
resources of PostScript documents.
- The cache sub-system has been rewritten.
- There is now support for deinstallation of faces.

4
include/freetype/config/ftstdlib.h
View File

@ -5,7 +5,7 @@
/* ANSI-specific library and header configuration file (specification */
/* only). */
/* */
/* Copyright 2002, 2003 by */
/* Copyright 2002, 2003, 2004 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -110,7 +110,7 @@
#define ft_qsort qsort
#define ft_exit exit /* only used to exit from unhandled exceptions */
#define ft_atoi atoi
#define ft_atol atol
/**********************************************************************/

4
include/freetype/internal/t1types.h
View File

@ -5,7 +5,7 @@
/* Basic Type1/Type2 type definitions and interface (specification */
/* only). */
/* */
/* Copyright 1996-2001, 2002, 2003 by */
/* Copyright 1996-2001, 2002, 2003, 2004 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -173,6 +173,8 @@ FT_BEGIN_HEADER
void* psaux;
CID_FaceInfoRec cid;
void* afm_data;
FT_Byte* binary_data; /* used if hex data has been converted */
FT_Stream cid_stream;
CID_Subrs subrs;
/* since FT 2.1 - interface to PostScript hinter */

6
src/base/ftdbgmem.c
View File

@ -4,7 +4,7 @@
/* */
/* Memory debugger (body). */
/* */
/* Copyright 2001, 2002, 2003 by */
/* Copyright 2001, 2002, 2003, 2004 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -604,7 +604,7 @@
p = getenv( "FT2_ALLOC_TOTAL_MAX" );
if ( p != NULL )
{
FT_Long total_max = atol(p);
FT_Long total_max = ft_atol(p);
if ( total_max > 0 )
{
@ -616,7 +616,7 @@
p = getenv( "FT2_ALLOC_COUNT_MAX" );
if ( p != NULL )
{
FT_Long total_count = atol(p);
FT_Long total_count = ft_atol(p);
if ( total_count > 0 )
{

4
src/cid/cidgload.c
View File

@ -4,7 +4,7 @@
/* */
/* CID-keyed Type1 Glyph Loader (body). */
/* */
/* Copyright 1996-2001, 2002, 2003 by */
/* Copyright 1996-2001, 2002, 2003, 2004 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -44,7 +44,7 @@
CID_FaceInfo cid = &face->cid;
FT_Byte* p;
FT_UInt fd_select;
FT_Stream stream = face->root.stream;
FT_Stream stream = face->cid_stream;
FT_Error error = 0;
FT_Byte* charstring = 0;
FT_Memory memory = face->root.memory;

133
src/cid/cidload.c
View File

@ -4,7 +4,7 @@
/* */
/* CID-keyed Type1 font loader (body). */
/* */
/* Copyright 1996-2001, 2002, 2003 by */
/* Copyright 1996-2001, 2002, 2003, 2004 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -363,7 +363,7 @@
{
CID_FaceInfo cid = &face->cid;
FT_Memory memory = face->root.memory;
FT_Stream stream = face->root.stream;
FT_Stream stream = face->cid_stream;
FT_Error error;
FT_Int n;
CID_Subrs subr;
@ -399,7 +399,7 @@
/* read the subrmap's offsets */
if ( FT_STREAM_SEEK( cid->data_offset + dict->subrmap_offset ) ||
FT_FRAME_ENTER( ( num_subrs + 1 ) * dict->sd_bytes ) )
FT_FRAME_ENTER( ( num_subrs + 1 ) * dict->sd_bytes ) )
goto Fail;
p = (FT_Byte*)stream->cursor;
@ -487,11 +487,111 @@
}
static FT_Error
cid_hex_to_binary( FT_Byte* data,
FT_Long data_len,
FT_ULong offset,
CID_Face face )
{
FT_Stream stream = face->root.stream;
FT_Error error;
FT_Byte buffer[256];
FT_Byte *p, *plimit;
FT_Byte *d, *dlimit;
FT_Byte val;
FT_Bool upper_nibble, done;
if ( FT_STREAM_SEEK( offset ) )
goto Exit;
d = data;
dlimit = d + data_len;
p = buffer;
plimit = p;
upper_nibble = 1;
done = 0;
while ( d < dlimit )
{
if ( p >= plimit )
{
FT_ULong oldpos = FT_STREAM_POS();
FT_ULong size = stream->size - oldpos;
if ( size == 0 )
{
error = CID_Err_Syntax_Error;
goto Exit;
}
if ( FT_STREAM_READ( buffer, 256 > size ? size : 256 ) )
goto Exit;
p = buffer;
plimit = p + FT_STREAM_POS() - oldpos;
}
if ( ft_isdigit( *p ) )
val = *p - '0';
else if ( *p >= 'a' && *p <= 'f' )
val = *p - 'a';
else if ( *p >= 'A' && *p <= 'F' )
val = *p - 'A' + 10;
else if ( *p == ' ' ||
*p == '\t' ||
*p == '\r' ||
*p == '\n' ||
*p == '\f' ||
*p == '\0' )
{
p++;
continue;
}
else if ( *p == '>' )
{
val = 0;
done = 1;
}
else
{
error = CID_Err_Syntax_Error;
goto Exit;
}
if ( upper_nibble )
*d = val << 4;
else
{
*d += val;
d++;
}
upper_nibble = 1 - upper_nibble;
if ( done )
break;
p++;
}
error = CID_Err_Ok;
Exit:
return error;
}
FT_LOCAL_DEF( FT_Error )
cid_face_open( CID_Face face )
cid_face_open( CID_Face face,
FT_Int face_index )
{
CID_Loader loader;
CID_Parser* parser;
FT_Memory memory = face->root.memory;
FT_Error error;
@ -509,7 +609,30 @@
if ( error )
goto Exit;
face->cid.data_offset = loader.parser.data_offset;
if ( face_index < 0 )
goto Exit;
if ( parser->binary_length )
{
/* we must convert the data section from hexadecimal to binary */
if ( FT_ALLOC( face->binary_data, parser->binary_length ) ||
cid_hex_to_binary( face->binary_data, parser->binary_length,
parser->data_offset, face ) )
goto Exit;
if ( FT_NEW( face->cid_stream ) )
goto Exit;
FT_Stream_OpenMemory( face->cid_stream,
face->binary_data, parser->binary_length );
face->cid.data_offset = 0;
}
else
{
face->cid_stream = face->root.stream;
face->cid.data_offset = loader.parser.data_offset;
}
error = cid_read_subrs( face );
Exit:

5
src/cid/cidload.h
View File

@ -4,7 +4,7 @@
/* */
/* CID-keyed Type1 font loader (specification). */
/* */
/* Copyright 1996-2001, 2002, 2003 by */
/* Copyright 1996-2001, 2002, 2003, 2004 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -41,7 +41,8 @@ FT_BEGIN_HEADER
FT_Byte offsize );
FT_LOCAL( FT_Error )
cid_face_open( CID_Face face );
cid_face_open( CID_Face face,
FT_Int face_index );
FT_END_HEADER

8
src/cid/cidobjs.c
View File

@ -4,7 +4,7 @@
/* */
/* CID objects manager (body). */
/* */
/* Copyright 1996-2001, 2002, 2003 by */
/* Copyright 1996-2001, 2002, 2003, 2004 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -234,6 +234,9 @@
face->root.family_name = 0;
face->root.style_name = 0;
FT_FREE( face->binary_data );
FT_FREE( face->cid_stream );
}
}
@ -275,7 +278,6 @@
FT_UNUSED( num_params );
FT_UNUSED( params );
FT_UNUSED( face_index );
FT_UNUSED( stream );
@ -305,7 +307,7 @@
if ( FT_STREAM_SEEK( 0 ) )
goto Exit;
error = cid_face_open( face );
error = cid_face_open( face, face_index );
if ( error )
goto Exit;

17
src/cid/cidparse.c
View File

@ -140,22 +140,23 @@
/* in a comment or string. We also get its arguments to find out */
/* whether the data is represented in binary or hex format. */
arg1 = parser->root.cursor;
cid_parser_skip_PS_token( parser );
cid_parser_skip_spaces ( parser );
arg2 = parser->root.cursor;
cid_parser_skip_PS_token( parser );
cid_parser_skip_spaces ( parser );
limit = parser->root.limit;
cur = parser->root.cursor;
arg1 = cur;
cid_parser_skip_PS_token( parser );
cid_parser_skip_spaces ( parser );
arg2 = cur;
cid_parser_skip_PS_token( parser );
cid_parser_skip_spaces ( parser );
while ( cur < limit )
{
if ( *cur == 'S' && ft_strncmp( (char*)cur, "StartData", 9 ) == 0 )
{
if ( ft_strncmp( (char*)arg1, "(Hex)", 5 ) == 0 )
parser->data_type = 1;
parser->binary_length = ft_atol( (const char *)arg2 );
limit = parser->root.limit;
cur = parser->root.cursor;
goto Exit;

7
src/cid/cidparse.h
View File

@ -50,8 +50,8 @@ FT_BEGIN_HEADER
/* data_offset :: The start position of the binary data (i.e., the */
/* end of the data to be parsed. */
/* */
/* data_type :: If true, the binary data is represented in */
/* hexadecimal format. */
/* binary_length :: The length of the data after the `StartData' */
/* command if the data format is hexadecimal. */
/* */
/* cid :: A structure which holds the information about */
/* the current font. */
@ -67,7 +67,8 @@ FT_BEGIN_HEADER
FT_Long postscript_len;
FT_ULong data_offset;
FT_Bool data_type;
FT_Long binary_length;
CID_FaceInfo cid;
FT_Int num_dict;

4
src/type42/t42drivr.c
View File

@ -4,7 +4,7 @@
/* */
/* High-level Type 42 driver interface (body). */
/* */
/* Copyright 2002, 2003 by Roberto Alameda. */
/* Copyright 2002, 2003, 2004 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 */
@ -95,7 +95,7 @@
gname = face->type1.glyph_names[i];
if ( !ft_strcmp( glyph_name, gname ) )
return ft_atoi( (const char *)face->type1.charstrings[i] );
return (FT_UInt)ft_atol( (const char *)face->type1.charstrings[i] );
}
return 0;