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Use implementation specific SID value 0xFFFF to indicate that

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a dictionary element is missing.

* src/cff/cffload.c (cff_subfont_load): Initialize all fields
which hold SIDs to 0xFFFF.
(cff_index_get_sid_string): Handle SID value 0xFFFF.
Handle case where `psnames' is zero.
(cff_font_load): Updated.
Don't load encoding for CID-keyed CFFs.

* src/cff/cffobjs.c (cff_face_init): Updated.
Don't check for PSNames module if font is CID-keyed.
Compute style name properly (using the same algorithm as in the
CID driver).
Fix computation of style flags.

* src/cff/cfftoken.h: Comment out handling of base_font_name.
Rename `postscript' field to `embedded_postscript'
* src/cff/cfftypes.h (CFF_FontRecDictRec): Remove `base_font_name'
and `postscript'.
This commit is contained in:
Werner Lemberg 2003-12-11 17:55:58 +00:00
parent c5a4778f4a
commit f407480c7b
6 changed files with 135 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
ChangeLog
View File

@ -1,3 +1,26 @@
2003-12-10 Werner Lemberg <wl@gnu.org>
Use implementation specific SID value 0xFFFF to indicate that
a dictionary element is missing.
* src/cff/cffload.c (cff_subfont_load): Initialize all fields
which hold SIDs to 0xFFFF.
(cff_index_get_sid_string): Handle SID value 0xFFFF.
Handle case where `psnames' is zero.
(cff_font_load): Updated.
Don't load encoding for CID-keyed CFFs.
* src/cff/cffobjs.c (cff_face_init): Updated.
Don't check for PSNames module if font is CID-keyed.
Compute style name properly (using the same algorithm as in the
CID driver).
Fix computation of style flags.
* src/cff/cfftoken.h: Comment out handling of base_font_name.
Rename `postscript' field to `embedded_postscript'
* src/cff/cfftypes.h (CFF_FontRecDictRec): Remove `base_font_name'
and `postscript'.
2003-12-10 Detlef Würkner <TetiSoft@apg.lahn.de>
* src/pcf/pcfdrivr.c (pcf_get_charset_id): New function (a clone

2
src/cff/cffgload.c
View File

@ -2362,7 +2362,7 @@
cff_builder_done( &decoder.builder );
}
#ifdef FT_CONFIG_OPTION_INCREMENTAL
#ifdef FT_CONFIG_OPTION_INCREMENTAL
/* Incremental fonts can optionally override the metrics. */
if ( !error &&

55
src/cff/cffload.c
View File

@ -1172,7 +1172,7 @@
}
/* allocate a table containing pointers to an index's elements */
/* allocate a table containing pointers to an index's elements */
static FT_Error
cff_index_get_pointers( CFF_Index idx,
FT_Byte*** table )
@ -1211,7 +1211,7 @@
FT_Byte** pbytes,
FT_ULong* pbyte_len )
{
FT_Error error = 0;
FT_Error error = CFF_Err_Ok;
if ( idx && idx->count > element )
@ -1316,10 +1316,18 @@
FT_UInt sid,
FT_Service_PsCMaps psnames )
{
/* value 0xFFFFU indicates a missing dictionary entry */
if ( sid == 0xFFFFU )
return 0;
/* if it is not a standard string, return it */
if ( sid > 390 )
return cff_index_get_name( idx, sid - 391 );
/* CID-keyed CFF fonts don't have glyph names */
if ( !psnames )
return 0;
/* that's a standard string, fetch a copy from the PSName module */
{
FT_String* name = 0;
@ -1967,6 +1975,20 @@
top->font_matrix.yy = 0x10000L;
top->cid_count = 8720;
/* we use the implementation specific SID value 0xFFFF to indicate */
/* missing entries */
top->version = 0xFFFFU;
top->notice = 0xFFFFU;
top->copyright = 0xFFFFU;
top->full_name = 0xFFFFU;
top->family_name = 0xFFFFU;
top->weight = 0xFFFFU;
top->embedded_postscript = 0xFFFFU;
top->cid_registry = 0xFFFFU;
top->cid_ordering = 0xFFFFU;
top->cid_font_name = 0xFFFFU;
error = cff_index_access_element( idx, font_index, &dict, &dict_len ) ||
cff_parser_run( &parser, dict, dict + dict_len );
@ -1976,7 +1998,7 @@
goto Exit;
/* if it is a CID font, we stop there */
if ( top->cid_registry )
if ( top->cid_registry != 0xFFFFU )
goto Exit;
/* parse the private dictionary, if any */
@ -2118,7 +2140,7 @@
goto Exit;
/* now, check for a CID font */
if ( dict->cid_registry )
if ( dict->cid_registry != 0xFFFFU )
{
CFF_IndexRec fd_index;
CFF_SubFont sub;
@ -2199,7 +2221,7 @@
if ( error )
goto Exit;
/* read the Charset and Encoding tables when available */
/* read the Charset and Encoding tables if available */
if ( font->num_glyphs > 0 )
{
error = cff_charset_load( &font->charset, font->num_glyphs, stream,
@ -2207,17 +2229,22 @@
if ( error )
goto Exit;
error = cff_encoding_load( &font->encoding,
&font->charset,
font->num_glyphs,
stream,
base_offset,
dict->encoding_offset );
if ( error )
goto Exit;
/* CID-keyed CFFs don't have an encoding */
if ( dict->cid_registry == 0xFFFFU )
{
error = cff_encoding_load( &font->encoding,
&font->charset,
font->num_glyphs,
stream,
base_offset,
dict->encoding_offset );
if ( error )
goto Exit;
}
}
/* get the font name */
/* get the font name (/CIDFontName for CID-keyed fonts, */
/* /FontName otherwise) */
font->font_name = cff_index_get_name( &font->name_index, face_index );
Exit:

83
src/cff/cffobjs.c
View File

@ -244,8 +244,6 @@
}
FT_LOCAL_DEF( FT_Error )
cff_face_init( FT_Stream stream,
CFF_Face face,
@ -300,7 +298,7 @@
sfnt_format = 1;
/* now, the font can be either an OpenType/CFF font, or an SVG CEF */
/* font; in the later case it doesn't have a `head' table */
/* font; in the latter case it doesn't have a `head' table */
error = face->goto_table( face, TTAG_head, stream, 0 );
if ( !error )
{
@ -365,10 +363,12 @@
if ( pure_cff )
{
CFF_FontRecDict dict = &cff->top_font.font_dict;
char* style_name;
/* we need the `PSNames' module for pure-CFF and CEF formats */
if ( !psnames )
/* which aren't CID-keyed */
if ( dict->cid_registry == 0xFFFFU && !psnames )
{
FT_ERROR(( "cff_face_init:" ));
FT_ERROR(( " cannot open CFF & CEF fonts\n" ));
@ -381,7 +381,7 @@
root->num_faces = cff->num_faces;
/* compute number of glyphs */
if ( dict->cid_registry )
if ( dict->cid_registry != 0xFFFFU )
root->num_glyphs = dict->cid_count;
else
root->num_glyphs = cff->charstrings_index.count;
@ -392,7 +392,6 @@
root->bbox.xMax = ( dict->font_bbox.xMax + 0xFFFFU ) >> 16;
root->bbox.yMax = ( dict->font_bbox.yMax + 0xFFFFU ) >> 16;
root->ascender = (FT_Short)( root->bbox.yMax );
root->descender = (FT_Short)( root->bbox.yMin );
root->height = (FT_Short)(
@ -409,13 +408,59 @@
(FT_Short)( dict->underline_thickness >> 16 );
/* retrieve font family & style name */
root->family_name = cff_index_get_name( &cff->name_index, face_index );
if ( dict->cid_registry )
root->style_name = cff_strcpy( memory, "Regular" ); /* XXXX */
root->family_name = cff_index_get_name( &cff->name_index,
face_index );
/* assume "Regular" style if we don't know better */
style_name = (char *)"Regular";
if ( root->family_name )
{
char* full = cff_index_get_sid_string( &cff->string_index,
dict->full_name,
psnames );
char* family = root->family_name;
if ( full )
{
while ( *full )
{
if ( *full == *family )
{
family++;
full++;
}
else
{
if ( *full == ' ' || *full == '-' )
full++;
else if ( *family == ' ' || *family == '-' )
family++;
else
{
if ( !*family )
style_name = full;
break;
}
}
}
}
}
else
root->style_name = cff_index_get_sid_string( &cff->string_index,
dict->weight,
psnames );
{
char *cid_font_name =
cff_index_get_sid_string( &cff->string_index,
dict->cid_font_name,
psnames );
/* do we have a `/FontName' for a CID-keyed font? */
if ( cid_font_name )
root->family_name = cid_font_name;
}
root->style_name = cff_strcpy( memory, style_name );
/*******************************************************************/
/* */
@ -453,9 +498,17 @@
if ( dict->italic_angle )
flags |= FT_STYLE_FLAG_ITALIC;
/* XXX: may not be correct */
if ( cff->top_font.private_dict.force_bold )
flags |= FT_STYLE_FLAG_BOLD;
{
char *weight = cff_index_get_sid_string( &cff->string_index,
dict->weight,
psnames );
if ( weight )
if ( !ft_strcmp( weight, "Bold" ) ||
!ft_strcmp( weight, "Black" ) )
flags |= FT_STYLE_FLAG_BOLD;
}
root->style_flags = flags;
}

4
src/cff/cfftoken.h
View File

@ -43,10 +43,10 @@
CFF_FIELD_NUM ( 17, charstrings_offset )
CFF_FIELD_CALLBACK( 18, private_dict )
CFF_FIELD_NUM ( 0x114, synthetic_base )
CFF_FIELD_STRING ( 0x115, postscript )
CFF_FIELD_STRING ( 0x116, base_font_name )
CFF_FIELD_STRING ( 0x115, embedded_postscript )
#if 0
CFF_FIELD_STRING ( 0x116, base_font_name )
CFF_FIELD_DELTA ( 0x117, base_font_blend, 16 )
CFF_FIELD_CALLBACK( 0x118, multiple_master )
CFF_FIELD_CALLBACK( 0x119, blend_axit_types )

2
src/cff/cfftypes.h
View File

@ -113,8 +113,6 @@ FT_BEGIN_HEADER
FT_ULong private_size;
FT_Long synthetic_base;
FT_UInt embedded_postscript;
FT_UInt base_font_name;
FT_UInt postscript;
/* these should only be used for the top-level font dictionary */
FT_UInt cid_registry;