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Code Issues 9 Releases Wiki Activity

* freetype2/include/freetype/internal/psaux.h: New macros 

IS_PS_NEWLINE, IS_PS_SPACE, IS_PS_SPECIAL, IS_PS_DELIM, IS_PS_DIGIT,
IS_PS_XDIGIT, and IS_PS_BASE85 (from freetype2/src/psaux/psconv.h).
(T1_FieldLocation): Add T1_FIELD_LOCATION_LOADER,
T1_FIELD_LOCATION_FACE, and T1_FIELD_LOCATION_BLEND.
(T1_DecoderRec): New fields `buildchar' and `face'.
(IS_PS_TOKEN): New macro.

* freetype2/include/freetype/internal/t1types.h (T1_FaceRec): New
fields `ndv_idx', `cdv_idx', and `len_buildchar'.

* freetype2/include/freetype/t1tables.h (PS_BlendRec): New fields
`default_design_vector' and `num_default_design_vector'.

* freetype2/src/psaux/psconv.h: Move macros IS_PS_NEWLINE,
IS_PS_SPACE, IS_PS_SPECIAL, IS_PS_DELIM, IS_PS_DIGIT, IS_PS_XDIGIT,
and IS_PS_BASE85 to freetype2/include/freetype/internal/psaux.h.

* freetype2/src/psaux/psobjs.c (ps_parser_to_token_array): Allow
`token' argument to be NULL if we want only to count the number of
tokens.
(ps_tocoordarray): Allow `coords' argument to be NULL if we just
want to skip the array.
(ps_tofixedarray): Allow `values' argument to be NULL if we just
want to skip the array.

* freetype2/src/psaux/t1decode.c (t1_decoder_parse_charstrings): Add
support for (partially commented out) othersubrs 19-25, 27, and 28.
(t1_decoder_init): Initialize new fields `face' and `buildchar'.
(t1_decoder_done): Release new field `buildchar'.

* freetype2/src/type1/t1load.c (parse_buildchar, parse_private): New
functions.
(t1_keywords): Register them.
(t1_allocate_blend): Updated.
(t1_load_keyword): Handle field types T1_FIELD_LOCATION_LOADER,
T1_FIELD_LOCATION_FACE and T1_FIELD_LOCATION_BLEND.
(parse_dict): Remove `keyword_flags' argument.
Use new macro IS_PS_TOKEN.
Changed function so that later PostScript definitions override
earlier ones.
(t1_init_loader): Initialize new field `keywords_encountered'.
(T1_Open_Face): Initialize new fields `ndv_idx', `cdv_idx', and
`len_buildchar'.
Remove `keywords_flags'.

* freetype2/src/type1/t1load.h (T1_LoaderRect): New field
`keywords_encountered'.
(T1_PRIVATE, T1_FONTDIR_AFTER_PRIVATE): New macros.

* freetype2/src/type1/t1tokens.h [!T1_CONFIG_OPTION_NO_MM_SUPPORT]:
New entries for parsing /NDV, /CDV, and /DesignVector.
This commit is contained in:
Werner Lemberg 2006-07-14 18:28:08 +00:00
parent 4af3c4d7ee
commit 1a380e02d1
10 changed files with 519 additions and 102 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
ChangeLog
View File

@ -1,3 +1,58 @@
2006-07-14 Jens Claudius <jens.claudius@yahoo.com>
* freetype2/include/freetype/internal/psaux.h: New macros
IS_PS_NEWLINE, IS_PS_SPACE, IS_PS_SPECIAL, IS_PS_DELIM, IS_PS_DIGIT,
IS_PS_XDIGIT, and IS_PS_BASE85 (from freetype2/src/psaux/psconv.h).
(T1_FieldLocation): Add T1_FIELD_LOCATION_LOADER,
T1_FIELD_LOCATION_FACE, and T1_FIELD_LOCATION_BLEND.
(T1_DecoderRec): New fields `buildchar' and `face'.
(IS_PS_TOKEN): New macro.
* freetype2/include/freetype/internal/t1types.h (T1_FaceRec): New
fields `ndv_idx', `cdv_idx', and `len_buildchar'.
* freetype2/include/freetype/t1tables.h (PS_BlendRec): New fields
`default_design_vector' and `num_default_design_vector'.
* freetype2/src/psaux/psconv.h: Move macros IS_PS_NEWLINE,
IS_PS_SPACE, IS_PS_SPECIAL, IS_PS_DELIM, IS_PS_DIGIT, IS_PS_XDIGIT,
and IS_PS_BASE85 to freetype2/include/freetype/internal/psaux.h.
* freetype2/src/psaux/psobjs.c (ps_parser_to_token_array): Allow
`token' argument to be NULL if we want only to count the number of
tokens.
(ps_tocoordarray): Allow `coords' argument to be NULL if we just
want to skip the array.
(ps_tofixedarray): Allow `values' argument to be NULL if we just
want to skip the array.
* freetype2/src/psaux/t1decode.c (t1_decoder_parse_charstrings): Add
support for (partially commented out) othersubrs 19-25, 27, and 28.
(t1_decoder_init): Initialize new fields `face' and `buildchar'.
(t1_decoder_done): Release new field `buildchar'.
* freetype2/src/type1/t1load.c (parse_buildchar, parse_private): New
functions.
(t1_keywords): Register them.
(t1_allocate_blend): Updated.
(t1_load_keyword): Handle field types T1_FIELD_LOCATION_LOADER,
T1_FIELD_LOCATION_FACE and T1_FIELD_LOCATION_BLEND.
(parse_dict): Remove `keyword_flags' argument.
Use new macro IS_PS_TOKEN.
Changed function so that later PostScript definitions override
earlier ones.
(t1_init_loader): Initialize new field `keywords_encountered'.
(T1_Open_Face): Initialize new fields `ndv_idx', `cdv_idx', and
`len_buildchar'.
Remove `keywords_flags'.
* freetype2/src/type1/t1load.h (T1_LoaderRect): New field
`keywords_encountered'.
(T1_PRIVATE, T1_FONTDIR_AFTER_PRIVATE): New macros.
* freetype2/src/type1/t1tokens.h [!T1_CONFIG_OPTION_NO_MM_SUPPORT]:
New entries for parsing /NDV, /CDV, and /DesignVector.
2006-07-07 Werner Lemberg <wl@gnu.org>
Add many checks to protect against malformed PCF files.

60
include/freetype/internal/psaux.h
View File

@ -199,6 +199,9 @@ FT_BEGIN_HEADER
T1_FIELD_LOCATION_FONT_INFO,
T1_FIELD_LOCATION_PRIVATE,
T1_FIELD_LOCATION_BBOX,
T1_FIELD_LOCATION_LOADER,
T1_FIELD_LOCATION_FACE,
T1_FIELD_LOCATION_BLEND,
/* do not remove */
T1_FIELD_LOCATION_MAX
@ -683,6 +686,10 @@ FT_BEGIN_HEADER
T1_Decoder_Callback parse_callback;
T1_Decoder_FuncsRec funcs;
FT_Int* buildchar;
T1_Face face;
} T1_DecoderRec;
@ -712,8 +719,10 @@ FT_BEGIN_HEADER
} AFM_Parser_FuncsRec;
typedef struct AFM_StreamRec_* AFM_Stream;
/*************************************************************************/
/* */
/* <Struct> */
@ -801,6 +810,57 @@ FT_BEGIN_HEADER
/* backwards-compatible type definition */
typedef PSAux_ServiceRec PSAux_Interface;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** Some convenience functions *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
#define IS_PS_NEWLINE( ch ) \
( (ch) == '\r' || \
(ch) == '\n' )
#define IS_PS_SPACE( ch ) \
( (ch) == ' ' || \
IS_PS_NEWLINE( ch ) || \
(ch) == '\t' || \
(ch) == '\f' || \
(ch) == '\0' )
#define IS_PS_SPECIAL( ch ) \
( (ch) == '/' || \
(ch) == '(' || (ch) == ')' || \
(ch) == '<' || (ch) == '>' || \
(ch) == '[' || (ch) == ']' || \
(ch) == '{' || (ch) == '}' || \
(ch) == '%' )
#define IS_PS_DELIM( ch ) \
( IS_PS_SPACE( ch ) || \
IS_PS_SPECIAL( ch ) )
#define IS_PS_DIGIT( ch ) \
( (ch) >= '0' && (ch) <= '9' )
#define IS_PS_XDIGIT( ch ) \
( IS_PS_DIGIT( ch ) || \
( (ch) >= 'A' && (ch) <= 'F' ) || \
( (ch) >= 'a' && (ch) <= 'f' ) )
#define IS_PS_BASE85( ch ) \
( (ch) >= '!' && (ch) <= 'u' )
#define IS_PS_TOKEN( cur, limit, token ) \
( (char)(cur)[0] == (token)[0] && \
( (cur) + sizeof ( (token) ) == (limit) || \
( (cur) + sizeof( (token) ) < (limit) && \
IS_PS_DELIM( (cur)[sizeof ( (token) ) - 1] ) ) ) && \
ft_strncmp( (char*)(cur), (token), sizeof ( (token) ) - 1 ) == 0 )
FT_END_HEADER
#endif /* __PSAUX_H__ */

10
include/freetype/internal/t1types.h
View File

@ -208,6 +208,16 @@ FT_BEGIN_HEADER
/* support for Multiple Masters fonts */
PS_Blend blend;
/* undocumented, optional: indices of subroutines that express */
/* the NormalizeDesignVector and the ConvertDesignVector procedure, */
/* respectively, as Type 2 charstrings; -1 if keywords not present */
FT_Int ndv_idx;
FT_Int cdv_idx;
/* undocumented, optional: has the same meaning as len_buildchar */
/* for Type 2 fonts; manipulated by othersubrs 19, 24, and 25 */
FT_UInt len_buildchar;
/* since version 2.1 - interface to PostScript hinter */
const void* pshinter;

11
include/freetype/t1tables.h
View File

@ -5,7 +5,7 @@
/* Basic Type 1/Type 2 tables definitions and interface (specification */
/* only). */
/* */
/* Copyright 1996-2001, 2002, 2003, 2004 by */
/* Copyright 1996-2001, 2002, 2003, 2004, 2006 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -256,6 +256,15 @@ FT_BEGIN_HEADER
FT_BBox* bboxes [T1_MAX_MM_DESIGNS + 1];
/* since 2.2.2 */
/* undocumented, optional: the default design instance; */
/* corresponds to default_weight_vector -- */
/* num_default_design_vector == 0 means it is not present */
/* in the font and associated metrics files */
FT_UInt default_design_vector[T1_MAX_MM_DESIGNS];
FT_UInt num_default_design_vector;
} PS_BlendRec, *PS_Blend;

36
src/psaux/psconv.h
View File

@ -63,42 +63,6 @@ FT_BEGIN_HEADER
FT_UShort* seed );
#define IS_PS_NEWLINE( ch ) \
( ( ch ) == '\r' || \
( ch ) == '\n' )
#define IS_PS_SPACE( ch ) \
( ( ch ) == ' ' || \
IS_PS_NEWLINE( ch ) || \
( ch ) == '\t' || \
( ch ) == '\f' || \
( ch ) == '\0' )
#define IS_PS_SPECIAL( ch ) \
( ( ch ) == '/' || \
( ch ) == '(' || \
( ch ) == ')' || \
( ch ) == '<' || \
( ch ) == '>' || \
( ch ) == '[' || \
( ch ) == ']' || \
( ch ) == '{' || \
( ch ) == '}' || \
( ch ) == '%' )
#define IS_PS_DELIM( ch ) \
( IS_PS_SPACE( ch ) || \
IS_PS_SPECIAL( ch ) )
#define IS_PS_DIGIT( ch ) ( ( ch ) >= '0' && ( ch ) <= '9' )
#define IS_PS_XDIGIT( ch ) \
( IS_PS_DIGIT( ( ch ) ) || \
( ( ch ) >= 'A' && ( ch ) <= 'F' ) || \
( ( ch ) >= 'a' && ( ch ) <= 'f' ) )
#define IS_PS_BASE85( ch ) ( ( ch ) >= '!' && ( ch ) <= 'u' )
FT_END_HEADER
#endif /* __PSCONV_H__ */

32
src/psaux/psobjs.c
View File

@ -698,6 +698,9 @@
}
/* NB: `tokens' can be NULL if we only want to count */
/* the number of array elements */
FT_LOCAL_DEF( void )
ps_parser_to_token_array( PS_Parser parser,
T1_Token tokens,
@ -733,7 +736,7 @@
if ( !token.type )
break;
if ( cur < limit )
if ( tokens != NULL && cur < limit )
*cur = token;
cur++;
@ -748,6 +751,8 @@
/* first character must be a delimiter or a part of a number */
/* NB: `coords' can be NULL if we just want to skip the */
/* array; in this case we ignore `max_coords' */
static FT_Int
ps_tocoordarray( FT_Byte* *acur,
@ -780,21 +785,26 @@
/* now, read the coordinates */
while ( cur < limit )
{
FT_Short dummy;
/* skip whitespace in front of data */
skip_spaces( &cur, limit );
if ( cur >= limit )
goto Exit;
if ( count >= max_coords )
if ( coords != NULL && count >= max_coords )
break;
if ( c == ender )
if ( *cur == ender )
{
cur++;
break;
}
coords[count] =
/* call PS_Conv_ToFixed() even if coords == NULL */
/* to properly parse number at `cur' */
*( coords != NULL ? &coords[count] : &dummy ) =
(FT_Short)( PS_Conv_ToFixed( &cur, limit, 0 ) >> 16 );
count++;
@ -809,6 +819,8 @@
/* first character must be a delimiter or a part of a number */
/* NB: `values' can be NULL if we just want to skip the */
/* array in this case we ignore `max_values' */
static FT_Int
ps_tofixedarray( FT_Byte* *acur,
@ -842,21 +854,27 @@
/* now, read the values */
while ( cur < limit )
{
FT_Fixed dummy;
/* skip whitespace in front of data */
skip_spaces( &cur, limit );
if ( cur >= limit )
goto Exit;
if ( count >= max_values )
if ( values != NULL && count >= max_values )
break;
if ( c == ender )
if ( *cur == ender )
{
cur++;
break;
}
values[count] = PS_Conv_ToFixed( &cur, limit, power_ten );
/* call PS_Conv_ToFixed() even if coords == NULL */
/* to properly parse number at `cur' */
*( values != NULL ? &values[count] : &dummy ) =
PS_Conv_ToFixed( &cur, limit, power_ten );
count++;
if ( !ender )

229
src/psaux/t1decode.c
View File

@ -348,6 +348,14 @@
hinter = (T1_Hints_Funcs)builder->hints_funcs;
/* a font that reads BuildCharArray without setting */
/* its values first is buggy, but ... */
if ( decoder->face->len_buildchar > 0 )
memset( &decoder->buildchar[0],
0,
sizeof( decoder->buildchar[0] ) *
decoder->face->len_buildchar );
FT_TRACE4(( "\nStart charstring\n" ));
zone->base = charstring_base;
@ -582,12 +590,9 @@
subr_no = (FT_Int)top[1];
arg_cnt = (FT_Int)top[0];
if ( arg_cnt > top - decoder->stack )
goto Stack_Underflow;
/***********************************************************/
/* */
/* remove all operands to callsubr from the stack */
/* remove all operands to callothersubr from the stack */
/* */
/* for handled othersubrs, where we know the number of */
/* arguments, we increase the stack by the value of */
@ -596,11 +601,30 @@
/* for unhandled othersubrs the following pops adjust the */
/* stack pointer as necessary */
if ( arg_cnt > top - decoder->stack )
goto Stack_Underflow;
top -= arg_cnt;
known_othersubr_result_cnt = 0;
unknown_othersubr_result_cnt = 0;
/* XXX TODO: The checks to `arg_count == <whatever>' */
/* might not be correct; an othersubr expects a certain */
/* number of operands on the PostScript stack (as opposed */
/* to the T1 stack) but it doesn't have to put them there */
/* by itself; previous othersubrs might have left the */
/* operands there if they were not followed by an */
/* appropriate number of pops */
/* */
/* On the other hand, Adobe Reader 7.0.8 for Linux doesn't */
/* accept a font that contains charstrings like */
/* */
/* 100 200 2 20 callothersubr */
/* 300 1 20 callothersubr pop */
/* */
/* Perhaps this is the reason why BuildCharArray exists. */
switch ( subr_no )
{
case 1: /* start flex feature */
@ -726,6 +750,158 @@
break;
}
#ifdef CAN_HANDLE_NON_INTEGRAL_T1_OPERANDS
/* We cannot yet enable these since currently */
/* our T1 stack stores integers which lack the */
/* precision to express the values */
case 19:
/* <idx> 1 19 callothersubr */
/* => replace elements starting from index cvi( <idx> ) */
/* of BuildCharArray with WeightVector */
{
FT_Int idx;
PS_Blend blend = decoder->blend;
if ( arg_cnt != 1 || blend == NULL )
goto Unexpected_OtherSubr;
idx = top[0];
if ( idx < 0 ||
idx + blend->num_designs > decoder->face->len_buildchar )
goto Unexpected_OtherSubr;
memcpy( &decoder->buildchar[idx],
blend->weight_vector,
blend->num_designs *
sizeof( blend->weight_vector[ 0 ] ) );
}
break;
case 20:
/* <arg1> <arg2> 2 20 callothersubr pop */
/* ==> push <arg1> + <arg2> onto T1 stack */
if ( arg_cnt != 2 )
goto Unexpected_OtherSubr;
top[0] += top[1]; /* XXX (over|under)flow */
known_othersubr_result_cnt = 1;
break;
case 21:
/* <arg1> <arg2> 2 21 callothersubr pop */
/* ==> push <arg1> - <arg2> onto T1 stack */
if ( arg_cnt != 2 )
goto Unexpected_OtherSubr;
top[0] -= top[1]; /* XXX (over|under)flow */
known_othersubr_result_cnt = 1;
break;
case 22:
/* <arg1> <arg2> 2 22 callothersubr pop */
/* ==> push <arg1> * <arg2> onto T1 stack */
if ( arg_cnt != 2 )
goto Unexpected_OtherSubr;
top[0] *= top[1]; /* XXX (over|under)flow */
known_othersubr_result_cnt = 1;
break;
case 23:
/* <arg1> <arg2> 2 23 callothersubr pop */
/* ==> push <arg1> / <arg2> onto T1 stack */
if ( arg_cnt != 2 || top[1] == 0 )
goto Unexpected_OtherSubr;
top[0] /= top[1]; /* XXX (over|under)flow */
known_othersubr_result_cnt = 1;
break;
#endif /* CAN_HANDLE_NON_INTEGRAL_T1_OPERANDS */
case 24:
/* <val> <idx> 2 24 callothersubr */
/* => set BuildCharArray[cvi( <idx> )] = <val> */
{
FT_Int idx;
PS_Blend blend = decoder->blend;
if ( arg_cnt != 2 || blend == NULL )
goto Unexpected_OtherSubr;
idx = top[1];
if ( idx < 0 || (FT_UInt) idx >= decoder->face->len_buildchar )
goto Unexpected_OtherSubr;
decoder->buildchar[idx] = top[0];
}
break;
case 25:
/* <idx> 1 25 callothersubr pop */
/* => push BuildCharArray[cvi( idx )] */
/* onto T1 stack */
{
FT_Int idx;
PS_Blend blend = decoder->blend;
if ( arg_cnt != 1 || blend == NULL )
goto Unexpected_OtherSubr;
idx = top[0];
if ( idx < 0 || (FT_UInt) idx >= decoder->face->len_buildchar )
goto Unexpected_OtherSubr;
top[0] = decoder->buildchar[idx];
}
known_othersubr_result_cnt = 1;
break;
#if 0
case 26:
/* <val> mark <idx> ==> set BuildCharArray[cvi( <idx> )] = <val>, */
/* leave mark on T1 stack */
/* <val> <idx> ==> set BuildCharArray[cvi( <idx> )] = <val> */
XXX who has left his mark on the (PostScript) stack ?;
break;
#endif
case 27:
/* <res1> <res2> <val1> <val2> 4 27 callothersubr pop */
/* ==> push <res1> onto T1 stack if <val1> <= <val2>, */
/* otherwise push <res2> */
if ( arg_cnt != 4 )
goto Unexpected_OtherSubr;
if ( top[2] > top[3] )
top[0] = top[1];
known_othersubr_result_cnt = 1;
break;
#ifdef CAN_HANDLE_NON_INTEGRAL_T1_OPERANDS
case 28:
/* 0 28 callothersubr pop */
/* => push random value from interval [0, 1) onto stack */
if ( arg_cnt != 0 )
goto Unexpected_OtherSubr;
top[0] = FT_rand();
known_othersubr_result_cnt = 1;
break;
#endif
default:
FT_ERROR(( "t1_decoder_parse_charstrings: "
"unknown othersubr [%d %d], wish me luck!\n",
@ -805,8 +981,30 @@
/* add current outline to the glyph slot */
FT_GlyphLoader_Add( builder->loader );
FT_TRACE4(( "\n" ));
/* the compiler should optimize away this empty loop but ... */
#ifdef FT_DEBUG_LEVEL_TRACE
if ( decoder->face->len_buildchar > 0 )
{
FT_UInt i;
FT_TRACE4(( "BuildCharArray = [ " ));
for ( i = 0; i < decoder->face->len_buildchar; ++i )
FT_TRACE4(( "%d ", decoder->buildchar[ i ] ));
FT_TRACE4(( "]\n" ));
}
#endif /* FT_DEBUG_LEVEL_TRACE */
FT_TRACE4(( "\n" ));
/* return now! */
FT_TRACE4(( "\n\n" ));
return PSaux_Err_Ok;
case op_hsbw:
@ -1225,6 +1423,10 @@
FT_Render_Mode hint_mode,
T1_Decoder_Callback parse_callback )
{
FT_Error error;
FT_Memory memory = face->memory;
FT_MEM_ZERO( decoder, sizeof ( *decoder ) );
/* retrieve PSNames interface from list of current modules */
@ -1243,6 +1445,18 @@
decoder->psnames = psnames;
}
decoder->face = (T1_Face) face;
if ( decoder->face->len_buildchar > 0 )
{
if ( FT_NEW_ARRAY( decoder->buildchar, decoder->face->len_buildchar ) )
{
FT_ERROR(( "t1_decoder_init: " ));
FT_ERROR(( "cannot allocate memory for BuildCharArray\n" ));
return error;
}
}
t1_builder_init( &decoder->builder, face, size, slot, hinting );
decoder->num_glyphs = (FT_UInt)face->num_glyphs;
@ -1261,7 +1475,12 @@
FT_LOCAL_DEF( void )
t1_decoder_done( T1_Decoder decoder )
{
FT_Memory memory = decoder->face->root.memory;
t1_builder_done( &decoder->builder );
FT_FREE( decoder->buildchar );
}

152
src/type1/t1load.c
View File

@ -107,6 +107,8 @@
if ( FT_NEW( blend ) )
goto Exit;
blend->num_default_design_vector = 0;
face->blend = blend;
}
@ -877,6 +879,18 @@
}
/* e.g., /BuildCharArray [0 0 0 0 0 0 0 0] def */
/* we're only interested in the number of array elements */
static void
parse_buildchar( T1_Face face,
T1_Loader loader )
{
face->len_buildchar = T1_ToFixedArray( &loader->parser, 0, NULL, 0 );
return;
}
#endif /* T1_CONFIG_OPTION_NO_MM_SUPPORT */
@ -950,6 +964,26 @@
}
break;
case T1_FIELD_LOCATION_LOADER:
dummy_object = loader;
objects = &dummy_object;
max_objects = 0;
break;
case T1_FIELD_LOCATION_FACE:
dummy_object = face;
objects = &dummy_object;
max_objects = 0;
break;
#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
case T1_FIELD_LOCATION_BLEND:
dummy_object = face->blend;
objects = &dummy_object;
max_objects = 0;
break;
#endif
default:
dummy_object = &face->type1;
objects = &dummy_object;
@ -969,6 +1003,16 @@
}
static void
parse_private( T1_Face face,
T1_Loader loader )
{
FT_UNUSED( face );
loader->keywords_encountered |= T1_PRIVATE;
}
static int
is_space( FT_Byte c )
{
@ -1681,12 +1725,14 @@
T1_FIELD_CALLBACK( "Encoding", parse_encoding )
T1_FIELD_CALLBACK( "Subrs", parse_subrs )
T1_FIELD_CALLBACK( "CharStrings", parse_charstrings )
T1_FIELD_CALLBACK( "Private", parse_private )
#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
T1_FIELD_CALLBACK( "BlendDesignPositions", parse_blend_design_positions )
T1_FIELD_CALLBACK( "BlendDesignMap", parse_blend_design_map )
T1_FIELD_CALLBACK( "BlendAxisTypes", parse_blend_axis_types )
T1_FIELD_CALLBACK( "WeightVector", parse_weight_vector )
T1_FIELD_CALLBACK( "BuildCharArray", parse_buildchar )
#endif
{ 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0 }
@ -1701,8 +1747,7 @@
parse_dict( T1_Face face,
T1_Loader loader,
FT_Byte* base,
FT_Long size,
FT_Byte* keyword_flags )
FT_Long size )
{
T1_Parser parser = &loader->parser;
FT_Byte *limit, *start_binary = NULL;
@ -1724,31 +1769,23 @@
cur = parser->root.cursor;
/* cur[5] must be a token delimiter; */
/* eexec encryption is optional, so look for `eexec' */
if ( *cur == 'e' && cur + 5 < limit &&
ft_strncmp( (char*)cur, "eexec", 5 ) == 0 )
/* look for `eexec' */
if ( IS_PS_TOKEN( cur, limit, "eexec" ) )
break;
/* cur[9] must be a token delimiter; */
/* look for `closefile' which ends the eexec section */
else if ( *cur == 'c' && cur + 9 < limit &&
ft_strncmp( (char*)cur, "closefile", 9 ) == 0 )
else if ( IS_PS_TOKEN( cur, limit, "closefile" ) )
break;
#ifdef TO_BE_DONE
/* in a synthetic font the base font starts after a */
/* `FontDictionary' token that is placed after a Private dict */
/* cur[13] must be a token delimiter */
else if ( *cur == 'F' && cur + 13 < limit &&
ft_strncmp( (char*)cur, "FontDirectory", 13 ) == 0 )
else if ( IS_PS_TOKEN( cur, limit, "FontDirectory" ) )
{
if ( loader->private_encountered )
loader->fontdir_after_private = 1;
if ( loader->keywords_encountered & T1_PRIVATE )
loader->keywords_encountered |=
T1_FONTDIR_AFTER_PRIVATE;
parser->root.cursor += 13;
}
#endif
/* check whether we have an integer */
else if ( ft_isdigit( *cur ) )
@ -1807,8 +1844,7 @@
if ( len > 0 && len < 22 && parser->root.cursor < limit )
{
/* now compare the immediate name to the keyword table */
T1_Field keyword = (T1_Field)t1_keywords;
FT_Byte* keyword_flag = keyword_flags;
T1_Field keyword = (T1_Field)t1_keywords;
for (;;)
@ -1824,21 +1860,28 @@
len == (FT_PtrDist)ft_strlen( (const char *)name ) &&
ft_memcmp( cur, name, len ) == 0 )
{
/* We found it -- run the parsing callback! */
/* We only record the first instance of any */
/* field to deal adequately with synthetic */
/* fonts; /Subrs and /CharStrings are */
/* handled specially. */
if ( keyword_flag[0] == 0 ||
ft_strcmp( (const char*)name, "Subrs" ) == 0 ||
ft_strcmp( (const char*)name, "CharStrings" ) == 0 )
/* We found it -- run the parsing callback! */
/* We record every instance of every field */
/* (until we reach the base font of a */
/* synthetic font) to deal adequately with */
/* multiple master fonts; this is also */
/* necessary because later PostScript */
/* definitions override earlier ones */
/* Once we encounter `FontDirectory' after */
/* `/Private', we know that this is a synthetic */
/* font; except for `/CharStrings' we are not */
/* interested in anything that follows this */
/* `FontDirectory' */
if ( !( loader->keywords_encountered &
T1_FONTDIR_AFTER_PRIVATE ) ||
ft_strcmp((const char*)name, "CharStrings") == 0 )
{
parser->root.error = t1_load_keyword( face,
loader,
keyword );
if ( parser->root.error == T1_Err_Ok )
keyword_flag[0] = 1;
else
if ( parser->root.error != T1_Err_Ok )
{
if ( FT_ERROR_BASE( parser->root.error ) == FT_Err_Ignore )
parser->root.error = T1_Err_Ok;
@ -1850,7 +1893,6 @@
}
keyword++;
keyword_flag++;
}
}
@ -1883,12 +1925,13 @@
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;
loader->subrs.init = 0;
loader->swap_table.init = 0;
loader->fontdata = 0;
loader->encoding_table.init = 0;
loader->charstrings.init = 0;
loader->glyph_names.init = 0;
loader->subrs.init = 0;
loader->swap_table.init = 0;
loader->fontdata = 0;
loader->keywords_encountered = 0;
}
@ -1918,7 +1961,6 @@
T1_Font type1 = &face->type1;
PS_Private priv = &type1->private_dict;
FT_Error error;
FT_Byte keyword_flags[T1_FIELD_COUNT];
PSAux_Service psaux = (PSAux_Service)face->psaux;
@ -1926,6 +1968,10 @@
t1_init_loader( &loader, face );
/* default values */
face->ndv_idx = -1;
face->cdv_idx = -1;
face->len_buildchar = 0;
priv->blue_shift = 7;
priv->blue_fuzz = 1;
priv->lenIV = 4;
@ -1940,16 +1986,8 @@
if ( error )
goto Exit;
{
FT_UInt n;
for ( n = 0; n < T1_FIELD_COUNT; n++ )
keyword_flags[n] = 0;
}
error = parse_dict( face, &loader, parser->base_dict, parser->base_len,
keyword_flags );
error = parse_dict( face, &loader,
parser->base_dict, parser->base_len );
if ( error )
goto Exit;
@ -1957,9 +1995,8 @@
if ( error )
goto Exit;
error = parse_dict( face, &loader, parser->private_dict,
parser->private_len,
keyword_flags );
error = parse_dict( face, &loader,
parser->private_dict, parser->private_len );
if ( error )
goto Exit;
@ -1968,6 +2005,19 @@
#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
if ( face->blend &&
face->blend->num_default_design_vector != 0 &&
face->blend->num_default_design_vector != face->blend->num_axis )
{
/* we don't use it currently so just warn, reset, and ignore */
FT_ERROR(( "T1_Open_Face(): /DesignVector contains %u entries "
"while there are %u axes.\n",
face->blend->num_default_design_vector,
face->blend->num_axis ));
face->blend->num_default_design_vector = 0;
}
/* the following can happen for MM instances; we then treat the */
/* font as a normal PS font */
if ( face->blend &&

11
src/type1/t1load.h
View File

@ -4,7 +4,7 @@
/* */
/* Type 1 font loader (specification). */
/* */
/* Copyright 1996-2001, 2002, 2004 by */
/* Copyright 1996-2001, 2002, 2004, 2006 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -48,9 +48,18 @@ FT_BEGIN_HEADER
PS_TableRec subrs;
FT_Bool fontdata;
FT_UInt keywords_encountered; /* T1_LOADER_ENCOUNTERED_XXX */
} T1_LoaderRec, *T1_Loader;
/* treatment of some keywords differs depending on whether */
/* they preceed or follow certain other keywords */
#define T1_PRIVATE ( 1 << 0 )
#define T1_FONTDIR_AFTER_PRIVATE ( 1 << 1 )
FT_LOCAL( FT_Error )
T1_Open_Face( T1_Face face );

25
src/type1/t1tokens.h
View File

@ -4,7 +4,7 @@
/* */
/* Type 1 tokenizer (specification). */
/* */
/* Copyright 1996-2001, 2002, 2003, 2004 by */
/* Copyright 1996-2001, 2002, 2003, 2004, 2006 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@ -73,6 +73,7 @@
T1_FIELD_NUM ( "FontType", font_type )
T1_FIELD_FIXED( "StrokeWidth", stroke_width )
#undef FT_STRUCTURE
#define FT_STRUCTURE FT_BBox
#undef T1CODE
@ -81,4 +82,26 @@
T1_FIELD_BBOX("FontBBox", xMin )
#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
#undef FT_STRUCTURE
#define FT_STRUCTURE T1_FaceRec
#undef T1CODE
#define T1CODE T1_FIELD_LOCATION_FACE
T1_FIELD_NUM ( "NDV", ndv_idx )
T1_FIELD_NUM ( "CDV", cdv_idx )
#undef FT_STRUCTURE
#define FT_STRUCTURE PS_BlendRec
#undef T1CODE
#define T1CODE T1_FIELD_LOCATION_BLEND
T1_FIELD_NUM_TABLE( "DesignVector", default_design_vector, T1_MAX_MM_DESIGNS )
#endif /* T1_CONFIG_OPTION_NO_MM_SUPPORT */
/* END */