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* src/cff/cffcmap.c, src/cff/cffcmap.h, Jamfile, rules.mk: new files added

Browse Source 
to support charmaps for CFF fonts

    * src/cff/cffload.c, src/cff/cffload.h, src/cff/cffobjs.c,
    src/cff/cffobjs.h, src/cff/cffparse.c, src/cffparse.h, src/cff/cffgload.c,
    src/cff/cffgload.h: adding support for CFF charmaps, reformatting the
    sources, and removing some bugs in the Encoding and Charset loaders
This commit is contained in:
David Turner 2002-07-10 16:52:06 +00:00
parent ee06410b0a
commit b9b2cac634
16 changed files with 781 additions and 354 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
ChangeLog
View File

@ -1,3 +1,13 @@
2002-07-10 David Turner <david@freetype.org>
* src/cff/cffcmap.c, src/cff/cffcmap.h, Jamfile, rules.mk: new files added
to support charmaps for CFF fonts
* src/cff/cffload.c, src/cff/cffload.h, src/cff/cffobjs.c,
src/cff/cffobjs.h, src/cff/cffparse.c, src/cffparse.h, src/cff/cffgload.c,
src/cff/cffgload.h: adding support for CFF charmaps, reformatting the
sources, and removing some bugs in the Encoding and Charset loaders
2002-07-09 Owen Taylor <owen@redhat.com>
* src/pshinter/pshglob.c: fixed a bug that prevented the hinter from using

8
include/freetype/internal/cfftypes.h
View File

@ -68,8 +68,9 @@ FT_BEGIN_HEADER
FT_UInt format;
FT_ULong offset;
FT_UShort* sids;
FT_UShort* codes;
FT_UInt count;
FT_UShort sids [256]; /* avoid dynamic allocations */
FT_UShort codes[256];
} CFF_EncodingRec, *CFF_Encoding;
@ -241,6 +242,9 @@ FT_BEGIN_HEADER
/* interface to PostScript hinter */
void* pshinter;
/* interface to Postscript Names service */
void* psnames;
} CFF_FontRec, *CFF_Font;

2
src/cff/Jamfile
View File

@ -10,7 +10,7 @@ SubDirHdrs [ FT2_SubDir src cff ] ;
if $(FT2_MULTI)
{
_sources = cffdrivr cffgload cffload cffobjs cffparse ;
_sources = cffdrivr cffgload cffload cffobjs cffparse cffcmap ;
}
else
{

2
src/cff/cff.c
View File

@ -24,6 +24,6 @@
#include "cffload.c"
#include "cffobjs.c"
#include "cffgload.c"
#include "cffcmap.c"
/* END */

301
src/cff/cffcmap.c Normal file
View File

@ -0,0 +1,301 @@
#include "cffcmap.h"
#include "cffload.h"
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** CFF STANDARD (AND EXPERT) ENCODING CMAPS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_CALLBACK_DEF( FT_Error )
cff_cmap_encoding_init( CFF_CMapStd cmap )
{
TT_Face face = (TT_Face)FT_CMAP_FACE( cmap );
CFF_Font cff = face->extra.data;
CFF_Encoding encoding = &cff->encoding;
PSNames_Service psnames = cff->psnames;
cmap->count = encoding->count;
cmap->gids = encoding->codes;
return 0;
}
FT_CALLBACK_DEF( void )
cff_cmap_encoding_done( CFF_CMapStd cmap )
{
cmap->count = 0;
cmap->gids = NULL;
}
FT_CALLBACK_DEF( FT_UInt )
cff_cmap_encoding_char_index( CFF_CMapStd cmap,
FT_UInt32 char_code )
{
FT_UInt result = 0;
if ( char_code < cmap->count )
result = cmap->gids[ char_code ];
return result;
}
FT_CALLBACK_DEF( FT_UInt )
cff_cmap_encoding_char_next( CFF_CMapStd cmap,
FT_UInt32 *pchar_code )
{
FT_UInt result = 0;
FT_UInt32 char_code = *pchar_code;
*pchar_code = 0;
if ( char_code < cmap->count )
{
FT_UInt code = (FT_UInt)(char_code+1);
for (;;)
{
if ( code >= cmap->count )
break;
result = cmap->gids[ code ];
if ( result != 0 )
{
*pchar_code = code;
break;
}
code++;
}
}
return result;
}
FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
cff_cmap_encoding_class_rec =
{
sizeof ( CFF_CMapStdRec ),
(FT_CMap_InitFunc) cff_cmap_encoding_init,
(FT_CMap_DoneFunc) cff_cmap_encoding_done,
(FT_CMap_CharIndexFunc)cff_cmap_encoding_char_index,
(FT_CMap_CharNextFunc) cff_cmap_encoding_char_next
};
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** CFF SYNTHETIC UNICODE ENCODING CMAP *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
FT_CALLBACK_DEF( FT_Int )
cff_cmap_uni_pair_compare( const void* pair1,
const void* pair2 )
{
FT_UInt32 u1 = ((CFF_CMapUniPair)pair1)->unicode;
FT_UInt32 u2 = ((CFF_CMapUniPair)pair2)->unicode;
if ( u1 < u2 )
return -1;
if ( u1 > u2 )
return +1;
return 0;
}
FT_CALLBACK_DEF( FT_Error )
cff_cmap_unicode_init( CFF_CMapUnicode cmap )
{
FT_Error error;
FT_UInt count;
TT_Face face = (TT_Face)FT_CMAP_FACE( cmap );
FT_Memory memory = FT_FACE_MEMORY( face );
CFF_Font cff = face->extra.data;
CFF_Charset charset = &cff->charset;
PSNames_Service psnames = cff->psnames;
cmap->num_pairs = 0;
cmap->pairs = NULL;
count = face->root.num_glyphs;
if ( !FT_NEW_ARRAY( cmap->pairs, count ) )
{
FT_UInt n, new_count;
CFF_CMapUniPair pair;
FT_UInt32 uni_code;
pair = cmap->pairs;
for ( n = 0; n < count; n++ )
{
FT_UInt sid = charset->sids[n];
const char* gname;
gname = cff_index_get_sid_string( &cff->string_index, sid, psnames );
/* build unsorted pair table by matching glyph names */
if ( gname )
{
uni_code = psnames->unicode_value( gname );
if ( uni_code != 0 )
{
pair->unicode = uni_code;
pair->gindex = n;
pair++;
}
FT_FREE( gname );
}
}
new_count = (FT_UInt)( pair - cmap->pairs );
if ( new_count == 0 )
{
/* there are no unicode characters in here! */
FT_FREE( cmap->pairs );
error = FT_Err_Invalid_Argument;
}
else
{
/* re-allocate if the new array is much smaller than the original */
/* one */
if ( new_count != count && new_count < count / 2 )
{
(void)FT_RENEW_ARRAY( cmap->pairs, count, new_count );
error = 0;
}
/* sort the pairs table to allow efficient binary searches */
ft_qsort( cmap->pairs,
new_count,
sizeof ( CFF_CMapUniPairRec ),
cff_cmap_uni_pair_compare );
cmap->num_pairs = new_count;
}
}
return error;
}
FT_CALLBACK_DEF( void )
cff_cmap_unicode_done( CFF_CMapUnicode cmap )
{
FT_Face face = FT_CMAP_FACE(cmap);
FT_Memory memory = FT_FACE_MEMORY(face);
FT_FREE( cmap->pairs );
cmap->num_pairs = 0;
}
FT_CALLBACK_DEF( FT_UInt )
cff_cmap_unicode_char_index( CFF_CMapUnicode cmap,
FT_UInt32 char_code )
{
FT_UInt min = 0;
FT_UInt max = cmap->num_pairs;
FT_UInt mid;
CFF_CMapUniPair pair;
while ( min < max )
{
mid = min + ( max - min ) / 2;
pair = cmap->pairs + mid;
if ( pair->unicode == char_code )
return pair->gindex;
if ( pair->unicode < char_code )
min = mid + 1;
else
max = mid;
}
return 0;
}
FT_CALLBACK_DEF( FT_UInt )
cff_cmap_unicode_char_next( CFF_CMapUnicode cmap,
FT_UInt32 *pchar_code )
{
FT_UInt result = 0;
FT_UInt32 char_code = *pchar_code + 1;
Restart:
{
FT_UInt min = 0;
FT_UInt max = cmap->num_pairs;
FT_UInt mid;
CFF_CMapUniPair pair;
while ( min < max )
{
mid = min + ( ( max - min ) >> 1 );
pair = cmap->pairs + mid;
if ( pair->unicode == char_code )
{
result = pair->gindex;
if ( result != 0 )
goto Exit;
char_code++;
goto Restart;
}
if ( pair->unicode < char_code )
min = mid+1;
else
max = mid;
}
/* we didn't find it, but we have a pair just above it */
char_code = 0;
if ( min < cmap->num_pairs )
{
pair = cmap->pairs + min;
result = pair->gindex;
if ( result != 0 )
char_code = pair->unicode;
}
}
Exit:
*pchar_code = char_code;
return result;
}
FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
cff_cmap_unicode_class_rec =
{
sizeof ( CFF_CMapUnicodeRec ),
(FT_CMap_InitFunc) cff_cmap_unicode_init,
(FT_CMap_DoneFunc) cff_cmap_unicode_done,
(FT_CMap_CharIndexFunc)cff_cmap_unicode_char_index,
(FT_CMap_CharNextFunc) cff_cmap_unicode_char_next
};

66
src/cff/cffcmap.h Normal file
View File

@ -0,0 +1,66 @@
#ifndef __CFF_CMAP_H__
#define __CFF_CMAP_H__
#include "cffobjs.h"
FT_BEGIN_HEADER
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** TYPE1 STANDARD (AND EXPERT) ENCODING CMAPS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* standard (and expert) encoding cmaps */
typedef struct CFF_CMapStdRec_* CFF_CMapStd;
typedef struct CFF_CMapStdRec_
{
FT_CMapRec cmap;
FT_UInt count;
FT_UShort* gids; /* up to 256 elements */
} CFF_CMapStdRec;
FT_CALLBACK_TABLE const FT_CMap_ClassRec
cff_cmap_encoding_class_rec;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** CFF SYNTHETIC UNICODE ENCODING CMAP *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/* unicode (synthetic) cmaps */
typedef struct CFF_CMapUnicodeRec_* CFF_CMapUnicode;
typedef struct CFF_CMapUniPairRec_
{
FT_UInt32 unicode;
FT_UInt gindex;
} CFF_CMapUniPairRec, *CFF_CMapUniPair;
typedef struct CFF_CMapUnicodeRec_
{
FT_CMapRec cmap;
FT_UInt num_pairs;
CFF_CMapUniPair pairs;
} CFF_CMapUnicodeRec;
FT_CALLBACK_TABLE const FT_CMap_ClassRec
cff_cmap_unicode_class_rec;
FT_END_HEADER
#endif /* __CFF_CMAP_H__ */

26
src/cff/cffdrivr.c
View File

@ -201,7 +201,7 @@
}
/* now load the glyph outline if necessary */
error = CFF_Load_Glyph( slot, size, glyph_index, load_flags );
error = cff_slot_load( slot, size, glyph_index, load_flags );
/* force drop-out mode to 2 - irrelevant now */
/* slot->outline.dropout_mode = 2; */
@ -253,7 +253,7 @@
sid = font->charset.sids[glyph_index];
/* now, lookup the name itself */
gname = CFF_Get_String( &font->string_index, sid, psnames );
gname = cff_index_get_sid_string( &font->string_index, sid, psnames );
if ( buffer_max > 0 )
{
@ -406,7 +406,7 @@
sid = charset->sids[i];
if ( sid > 390 )
name = CFF_Get_Name( &cff->string_index, sid - 391 );
name = cff_index_get_name( &cff->string_index, sid - 391 );
else
name = (FT_String *)psnames->adobe_std_strings( sid );
@ -477,8 +477,8 @@
0, /* module-specific interface */
(FT_Module_Constructor)CFF_Driver_Init,
(FT_Module_Destructor) CFF_Driver_Done,
(FT_Module_Constructor)cff_driver_init,
(FT_Module_Destructor) cff_driver_done,
(FT_Module_Requester) cff_get_interface,
},
@ -487,15 +487,15 @@
sizeof( FT_SizeRec ),
sizeof( CFF_GlyphSlotRec ),
(FT_Face_InitFunc) CFF_Face_Init,
(FT_Face_DoneFunc) CFF_Face_Done,
(FT_Size_InitFunc) CFF_Size_Init,
(FT_Size_DoneFunc) CFF_Size_Done,
(FT_Slot_InitFunc) CFF_GlyphSlot_Init,
(FT_Slot_DoneFunc) CFF_GlyphSlot_Done,
(FT_Face_InitFunc) cff_face_init,
(FT_Face_DoneFunc) cff_face_done,
(FT_Size_InitFunc) cff_size_init,
(FT_Size_DoneFunc) cff_size_done,
(FT_Slot_InitFunc) cff_slot_init,
(FT_Slot_DoneFunc) cff_slot_done,
(FT_Size_ResetPointsFunc) CFF_Size_Reset,
(FT_Size_ResetPixelsFunc) CFF_Size_Reset,
(FT_Size_ResetPointsFunc) cff_size_reset,
(FT_Size_ResetPixelsFunc) cff_size_reset,
(FT_Slot_LoadFunc) Load_Glyph,
(FT_CharMap_CharIndexFunc)cff_get_char_index,

232
src/cff/cffgload.c
View File

@ -207,7 +207,7 @@
/*************************************************************************/
/* */
/* <Function> */
/* CFF_Builder_Init */
/* cff_builder_init */
/* */
/* <Description> */
/* Initializes a given glyph builder. */
@ -223,7 +223,7 @@
/* glyph :: The current glyph object. */
/* */
static void
CFF_Builder_Init( CFF_Builder* builder,
cff_builder_init( CFF_Builder* builder,
TT_Face face,
CFF_Size size,
CFF_GlyphSlot glyph,
@ -276,7 +276,7 @@
/*************************************************************************/
/* */
/* <Function> */
/* CFF_Builder_Done */
/* cff_builder_done */
/* */
/* <Description> */
/* Finalizes a given glyph builder. Its contents can still be used */
@ -287,7 +287,7 @@
/* builder :: A pointer to the glyph builder to finalize. */
/* */
static void
CFF_Builder_Done( CFF_Builder* builder )
cff_builder_done( CFF_Builder* builder )
{
CFF_GlyphSlot glyph = builder->glyph;
@ -331,7 +331,7 @@
/*************************************************************************/
/* */
/* <Function> */
/* CFF_Init_Decoder */
/* cff_decoder_init */
/* */
/* <Description> */
/* Initializes a given glyph decoder. */
@ -347,7 +347,7 @@
/* slot :: The current glyph object. */
/* */
FT_LOCAL_DEF( void )
CFF_Init_Decoder( CFF_Decoder* decoder,
cff_decoder_init( CFF_Decoder* decoder,
TT_Face face,
CFF_Size size,
CFF_GlyphSlot slot,
@ -360,7 +360,7 @@
FT_MEM_SET( decoder, 0, sizeof ( *decoder ) );
/* initialize builder */
CFF_Builder_Init( &decoder->builder, face, size, slot, hinting );
cff_builder_init( &decoder->builder, face, size, slot, hinting );
/* initialize Type2 decoder */
decoder->num_globals = cff->num_global_subrs;
@ -371,7 +371,7 @@
/* this function is used to select the locals subrs array */
FT_LOCAL_DEF( void )
CFF_Prepare_Decoder( CFF_Decoder* decoder,
cff_decoder_prepare( CFF_Decoder* decoder,
FT_UInt glyph_index )
{
CFF_Font cff = (CFF_Font)decoder->builder.face->extra.data;
@ -381,7 +381,7 @@
/* manage CID fonts */
if ( cff->num_subfonts >= 1 )
{
FT_Byte fd_index = CFF_Get_FD( &cff->fd_select, glyph_index );
FT_Byte fd_index = cff_fd_select_get( &cff->fd_select, glyph_index );
sub = cff->subfonts[fd_index];
@ -407,10 +407,10 @@
/* add a new point, do not check space */
static void
add_point( CFF_Builder* builder,
FT_Pos x,
FT_Pos y,
FT_Byte flag )
cff_builder_add_point( CFF_Builder* builder,
FT_Pos x,
FT_Pos y,
FT_Byte flag )
{
FT_Outline* outline = builder->current;
@ -434,16 +434,16 @@
/* check space for a new on-curve point, then add it */
static FT_Error
add_point1( CFF_Builder* builder,
FT_Pos x,
FT_Pos y )
cff_builder_cff_builder_add_point1( CFF_Builder* builder,
FT_Pos x,
FT_Pos y )
{
FT_Error error;
error = check_points( builder, 1 );
if ( !error )
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
return error;
}
@ -451,7 +451,7 @@
/* check room for a new contour, then add it */
static FT_Error
add_contour( CFF_Builder* builder )
cff_builder_add_contour( CFF_Builder* builder )
{
FT_Outline* outline = builder->current;
FT_Error error;
@ -479,9 +479,9 @@
/* if a path was begun, add its first on-curve point */
static FT_Error
start_point( CFF_Builder* builder,
FT_Pos x,
FT_Pos y )
cff_builder_start_point( CFF_Builder* builder,
FT_Pos x,
FT_Pos y )
{
FT_Error error = 0;
@ -490,9 +490,9 @@
if ( !builder->path_begun )
{
builder->path_begun = 1;
error = add_contour( builder );
error = cff_builder_add_contour( builder );
if ( !error )
error = add_point1( builder, x, y );
error = cff_builder_cff_builder_add_point1( builder, x, y );
}
return error;
@ -501,7 +501,7 @@
/* close the current contour */
static void
close_contour( CFF_Builder* builder )
cff_builder_close_contour( CFF_Builder* builder )
{
FT_Outline* outline = builder->current;
@ -548,7 +548,7 @@
return -1;
/* Get code to SID mapping from `cff_standard_encoding'. */
glyph_sid = CFF_Get_Standard_Encoding( (FT_UInt)charcode );
glyph_sid = cff_get_standard_encoding( (FT_UInt)charcode );
for ( n = 0; n < cff->num_glyphs; n++ )
{
@ -626,16 +626,16 @@
}
/* First load `bchar' in builder */
error = CFF_Access_Element( &cff->charstrings_index, bchar_index,
error = cff_index_access_element( &cff->charstrings_index, bchar_index,
&charstring, &charstring_len );
if ( !error )
{
error = CFF_Parse_CharStrings( decoder, charstring, charstring_len );
error = cff_decoder_parse_charstrings( decoder, charstring, charstring_len );
if ( error )
goto Exit;
CFF_Forget_Element( &cff->charstrings_index, &charstring );
cff_index_forget_element( &cff->charstrings_index, &charstring );
}
n_base_points = base->n_points;
@ -650,16 +650,16 @@
decoder->builder.left_bearing.y = 0;
/* Now load `achar' on top of the base outline. */
error = CFF_Access_Element( &cff->charstrings_index, achar_index,
error = cff_index_access_element( &cff->charstrings_index, achar_index,
&charstring, &charstring_len );
if ( !error )
{
error = CFF_Parse_CharStrings( decoder, charstring, charstring_len );
error = cff_decoder_parse_charstrings( decoder, charstring, charstring_len );
if ( error )
goto Exit;
CFF_Forget_Element( &cff->charstrings_index, &charstring );
cff_index_forget_element( &cff->charstrings_index, &charstring );
}
/* Restore the left side bearing and advance width */
@ -687,7 +687,7 @@
/*************************************************************************/
/* */
/* <Function> */
/* CFF_Parse_CharStrings */
/* cff_decoder_parse_charstrings */
/* */
/* <Description> */
/* Parses a given Type 2 charstrings program. */
@ -704,7 +704,7 @@
/* FreeType error code. 0 means success. */
/* */
FT_LOCAL_DEF( FT_Error )
CFF_Parse_CharStrings( CFF_Decoder* decoder,
cff_decoder_parse_charstrings( CFF_Decoder* decoder,
FT_Byte* charstring_base,
FT_Int charstring_len )
{
@ -1147,7 +1147,7 @@
case cff_op_rmoveto:
FT_TRACE4(( " rmoveto" ));
close_contour( builder );
cff_builder_close_contour( builder );
builder->path_begun = 0;
x += args[0];
y += args[1];
@ -1157,7 +1157,7 @@
case cff_op_vmoveto:
FT_TRACE4(( " vmoveto" ));
close_contour( builder );
cff_builder_close_contour( builder );
builder->path_begun = 0;
y += args[0];
args = stack;
@ -1166,7 +1166,7 @@
case cff_op_hmoveto:
FT_TRACE4(( " hmoveto" ));
close_contour( builder );
cff_builder_close_contour( builder );
builder->path_begun = 0;
x += args[0];
args = stack;
@ -1175,7 +1175,7 @@
case cff_op_rlineto:
FT_TRACE4(( " rlineto" ));
if ( start_point ( builder, x, y ) ||
if ( cff_builder_start_point ( builder, x, y ) ||
check_points( builder, num_args / 2 ) )
goto Memory_Error;
@ -1187,7 +1187,7 @@
{
x += args[0];
y += args[1];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args += 2;
}
args = stack;
@ -1202,7 +1202,7 @@
FT_TRACE4(( op == cff_op_hlineto ? " hlineto"
: " vlineto" ));
if ( start_point ( builder, x, y ) ||
if ( cff_builder_start_point ( builder, x, y ) ||
check_points( builder, num_args ) )
goto Memory_Error;
@ -1214,7 +1214,7 @@
else
y += args[0];
if ( add_point1( builder, x, y ) )
if ( cff_builder_cff_builder_add_point1( builder, x, y ) )
goto Memory_Error;
args++;
@ -1231,7 +1231,7 @@
if ( num_args % 6 != 0 )
goto Stack_Underflow;
if ( start_point ( builder, x, y ) ||
if ( cff_builder_start_point ( builder, x, y ) ||
check_points( builder, num_args / 2 ) )
goto Memory_Error;
@ -1240,13 +1240,13 @@
{
x += args[0];
y += args[1];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[2];
y += args[3];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[4];
y += args[5];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args += 6;
}
args = stack;
@ -1255,7 +1255,7 @@
case cff_op_vvcurveto:
FT_TRACE4(( " vvcurveto" ));
if ( start_point ( builder, x, y ) )
if ( cff_builder_start_point ( builder, x, y ) )
goto Memory_Error;
args = stack;
@ -1275,12 +1275,12 @@
while ( args < decoder->top )
{
y += args[0];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[1];
y += args[2];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
y += args[3];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args += 4;
}
args = stack;
@ -1289,7 +1289,7 @@
case cff_op_hhcurveto:
FT_TRACE4(( " hhcurveto" ));
if ( start_point ( builder, x, y ) )
if ( cff_builder_start_point ( builder, x, y ) )
goto Memory_Error;
args = stack;
@ -1309,12 +1309,12 @@
while ( args < decoder->top )
{
x += args[0];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[1];
y += args[2];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[3];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args += 4;
}
args = stack;
@ -1329,7 +1329,7 @@
FT_TRACE4(( op == cff_op_vhcurveto ? " vhcurveto"
: " hvcurveto" ));
if ( start_point ( builder, x, y ) )
if ( cff_builder_start_point ( builder, x, y ) )
goto Memory_Error;
args = stack;
@ -1347,26 +1347,26 @@
if ( phase )
{
x += args[0];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[1];
y += args[2];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
y += args[3];
if ( num_args == 1 )
x += args[4];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
}
else
{
y += args[0];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[1];
y += args[2];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[3];
if ( num_args == 1 )
y += args[4];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
}
args += 4;
phase ^= 1;
@ -1385,7 +1385,7 @@
if ( num_args < 8 || ( num_args - 6 ) & 1 )
goto Stack_Underflow;
if ( start_point( builder, x, y ) ||
if ( cff_builder_start_point( builder, x, y ) ||
check_points( builder, num_lines + 3 ) )
goto Memory_Error;
@ -1396,7 +1396,7 @@
{
x += args[0];
y += args[1];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args += 2;
num_lines--;
}
@ -1404,13 +1404,13 @@
/* then the curve */
x += args[0];
y += args[1];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[2];
y += args[3];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[4];
y += args[5];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args = stack;
}
break;
@ -1425,7 +1425,7 @@
if ( num_args < 8 || ( num_args - 2 ) % 6 )
goto Stack_Underflow;
if ( start_point ( builder, x, y ) ||
if ( cff_builder_start_point ( builder, x, y ) ||
check_points( builder, num_curves*3 + 2 ) )
goto Memory_Error;
@ -1436,13 +1436,13 @@
{
x += args[0];
y += args[1];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[2];
y += args[3];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
x += args[4];
y += args[5];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args += 6;
num_curves--;
}
@ -1450,7 +1450,7 @@
/* then the final line */
x += args[0];
y += args[1];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args = stack;
}
break;
@ -1467,7 +1467,7 @@
/* adding five more points; 4 control points, 1 on-curve point */
/* make sure we have enough space for the start point if it */
/* needs to be added.. */
if ( start_point( builder, x, y ) ||
if ( cff_builder_start_point( builder, x, y ) ||
check_points( builder, 6 ) )
goto Memory_Error;
@ -1477,32 +1477,32 @@
/* first control point */
x += args[0];
y += args[1];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
/* second control point */
x += args[2];
y += args[3];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
/* join point; on curve, with y-value the same as the last */
/* control point's y-value */
x += args[4];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
/* third control point, with y-value the same as the join */
/* point's y-value */
x += args[5];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
/* fourth control point */
x += args[6];
y += args[7];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
/* ending point, with y-value the same as the start */
x += args[8];
y = start_y;
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args = stack;
break;
@ -1518,7 +1518,7 @@
args = stack;
/* adding six more points; 4 control points, 2 on-curve points */
if ( start_point( builder, x, y ) ||
if ( cff_builder_start_point( builder, x, y ) ||
check_points ( builder, 6 ) )
goto Memory_Error;
@ -1527,32 +1527,32 @@
/* first control point */
x += args[0];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
/* second control point */
x += args[1];
y += args[2];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
/* join point; on curve, with y-value the same as the last */
/* control point's y-value */
x += args[3];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
/* third control point, with y-value the same as the join */
/* point's y-value */
x += args[4];
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
/* fourth control point */
x += args[5];
y = start_y;
add_point( builder, x, y, 0 );
cff_builder_add_point( builder, x, y, 0 );
/* ending point, with y-value the same as the start point's */
/* y-value -- we don't add this point, though */
x += args[6];
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args = stack;
break;
@ -1570,7 +1570,7 @@
FT_TRACE4(( " flex1" ));
/* adding six more points; 4 control points, 2 on-curve points */
if ( start_point( builder, x, y ) ||
if ( cff_builder_start_point( builder, x, y ) ||
check_points( builder, 6 ) )
goto Memory_Error;
@ -1604,7 +1604,7 @@
{
x += args[0];
y += args[1];
add_point( builder, x, y, (FT_Bool)( count == 3 ) );
cff_builder_add_point( builder, x, y, (FT_Bool)( count == 3 ) );
args += 2;
}
@ -1620,7 +1620,7 @@
y += args[0];
}
add_point( builder, x, y, 1 );
cff_builder_add_point( builder, x, y, 1 );
args = stack;
break;
@ -1633,7 +1633,7 @@
FT_TRACE4(( " flex" ));
if ( start_point( builder, x, y ) ||
if ( cff_builder_start_point( builder, x, y ) ||
check_points( builder, 6 ) )
goto Memory_Error;
@ -1642,7 +1642,7 @@
{
x += args[0];
y += args[1];
add_point( builder, x, y,
cff_builder_add_point( builder, x, y,
(FT_Bool)( count == 3 || count == 0 ) );
args += 2;
}
@ -1666,7 +1666,7 @@
if ( !error )
error = CFF_Err_Ok;
close_contour( builder );
cff_builder_close_contour( builder );
/* close hints recording session */
if ( hinter )
@ -1967,14 +1967,14 @@
if ( idx >= decoder->num_locals )
{
FT_ERROR(( "CFF_Parse_CharStrings:" ));
FT_ERROR(( "cff_decoder_parse_charstrings:" ));
FT_ERROR(( " invalid local subr index\n" ));
goto Syntax_Error;
}
if ( zone - decoder->zones >= CFF_MAX_SUBRS_CALLS )
{
FT_ERROR(( "CFF_Parse_CharStrings: too many nested subrs\n" ));
FT_ERROR(( "cff_decoder_parse_charstrings: too many nested subrs\n" ));
goto Syntax_Error;
}
@ -1987,7 +1987,7 @@
if ( !zone->base )
{
FT_ERROR(( "CFF_Parse_CharStrings: invoking empty subrs!\n" ));
FT_ERROR(( "cff_decoder_parse_charstrings: invoking empty subrs!\n" ));
goto Syntax_Error;
}
@ -2007,14 +2007,14 @@
if ( idx >= decoder->num_globals )
{
FT_ERROR(( "CFF_Parse_CharStrings:" ));
FT_ERROR(( "cff_decoder_parse_charstrings:" ));
FT_ERROR(( " invalid global subr index\n" ));
goto Syntax_Error;
}
if ( zone - decoder->zones >= CFF_MAX_SUBRS_CALLS )
{
FT_ERROR(( "CFF_Parse_CharStrings: too many nested subrs\n" ));
FT_ERROR(( "cff_decoder_parse_charstrings: too many nested subrs\n" ));
goto Syntax_Error;
}
@ -2027,7 +2027,7 @@
if ( !zone->base )
{
FT_ERROR(( "CFF_Parse_CharStrings: invoking empty subrs!\n" ));
FT_ERROR(( "cff_decoder_parse_charstrings: invoking empty subrs!\n" ));
goto Syntax_Error;
}
@ -2042,7 +2042,7 @@
if ( decoder->zone <= decoder->zones )
{
FT_ERROR(( "CFF_Parse_CharStrings: unexpected return\n" ));
FT_ERROR(( "cff_decoder_parse_charstrings: unexpected return\n" ));
goto Syntax_Error;
}
@ -2074,15 +2074,15 @@
return error;
Syntax_Error:
FT_TRACE4(( "CFF_Parse_CharStrings: syntax error!" ));
FT_TRACE4(( "cff_decoder_parse_charstrings: syntax error!" ));
return CFF_Err_Invalid_File_Format;
Stack_Underflow:
FT_TRACE4(( "CFF_Parse_CharStrings: stack underflow!" ));
FT_TRACE4(( "cff_decoder_parse_charstrings: stack underflow!" ));
return CFF_Err_Too_Few_Arguments;
Stack_Overflow:
FT_TRACE4(( "CFF_Parse_CharStrings: stack overflow!" ));
FT_TRACE4(( "cff_decoder_parse_charstrings: stack overflow!" ));
return CFF_Err_Stack_Overflow;
Memory_Error:
@ -2112,7 +2112,7 @@
FT_LOCAL_DEF( FT_Error )
CFF_Compute_Max_Advance( TT_Face face,
cff_compute_max_advance( TT_Face face,
FT_Int* max_advance )
{
FT_Error error = 0;
@ -2124,7 +2124,7 @@
*max_advance = 0;
/* Initialize load decoder */
CFF_Init_Decoder( &decoder, face, 0, 0, 0 );
cff_decoder_init( &decoder, face, 0, 0, 0 );
decoder.builder.metrics_only = 1;
decoder.builder.load_points = 0;
@ -2139,14 +2139,14 @@
/* now get load the unscaled outline */
error = CFF_Access_Element( &cff->charstrings_index, glyph_index,
error = cff_index_access_element( &cff->charstrings_index, glyph_index,
&charstring, &charstring_len );
if ( !error )
{
CFF_Prepare_Decoder( &decoder, glyph_index );
error = CFF_Parse_CharStrings( &decoder, charstring, charstring_len );
cff_decoder_prepare( &decoder, glyph_index );
error = cff_decoder_parse_charstrings( &decoder, charstring, charstring_len );
CFF_Forget_Element( &cff->charstrings_index, &charstring );
cff_index_forget_element( &cff->charstrings_index, &charstring );
}
/* ignore the error if one has occurred -- skip to next glyph */
@ -2179,10 +2179,10 @@
FT_LOCAL_DEF( FT_Error )
CFF_Load_Glyph( CFF_GlyphSlot glyph,
CFF_Size size,
FT_Int glyph_index,
FT_Int load_flags )
cff_slot_load( CFF_GlyphSlot glyph,
CFF_Size size,
FT_Int glyph_index,
FT_Int load_flags )
{
FT_Error error;
CFF_Decoder decoder;
@ -2218,26 +2218,26 @@
FT_ULong charstring_len;
CFF_Init_Decoder( &decoder, face, size, glyph, hinting );
cff_decoder_init( &decoder, face, size, glyph, hinting );
decoder.builder.no_recurse =
(FT_Bool)( ( load_flags & FT_LOAD_NO_RECURSE ) != 0 );
/* now load the unscaled outline */
error = CFF_Access_Element( &cff->charstrings_index, glyph_index,
error = cff_index_access_element( &cff->charstrings_index, glyph_index,
&charstring, &charstring_len );
if ( !error )
{
CFF_IndexRec csindex = cff->charstrings_index;
CFF_Prepare_Decoder( &decoder, glyph_index );
error = CFF_Parse_CharStrings( &decoder, charstring, charstring_len );
cff_decoder_prepare( &decoder, glyph_index );
error = cff_decoder_parse_charstrings( &decoder, charstring, charstring_len );
CFF_Forget_Element( &cff->charstrings_index, &charstring );
cff_index_forget_element( &cff->charstrings_index, &charstring );
/* We set control_data and control_len if charstrings is loaded. */
/* See how charstring loads at CFF_Access_Element() in cffload.c. */
/* See how charstring loads at cff_index_access_element() in cffload.c. */
glyph->root.control_data =
csindex.bytes + csindex.offsets[glyph_index] - 1;
@ -2246,7 +2246,7 @@
}
/* save new glyph tables */
CFF_Builder_Done( &decoder.builder );
cff_builder_done( &decoder.builder );
}
font_matrix = cff->top_font.font_dict.font_matrix;

20
src/cff/cffgload.h
View File

@ -172,35 +172,35 @@ FT_BEGIN_HEADER
FT_LOCAL( void )
CFF_Init_Decoder( CFF_Decoder* decoder,
cff_decoder_init( CFF_Decoder* decoder,
TT_Face face,
CFF_Size size,
CFF_GlyphSlot slot,
FT_Bool hinting );
FT_LOCAL( void )
CFF_Prepare_Decoder( CFF_Decoder* decoder,
cff_decoder_prepare( CFF_Decoder* decoder,
FT_UInt glyph_index );
#if 0 /* unused until we support pure CFF fonts */
/* Compute the maximum advance width of a font through quick parsing */
FT_LOCAL( FT_Error )
CFF_Compute_Max_Advance( TT_Face face,
cff_compute_max_advance( TT_Face face,
FT_Int* max_advance );
#endif /* 0 */
FT_LOCAL( FT_Error )
CFF_Parse_CharStrings( CFF_Decoder* decoder,
FT_Byte* charstring_base,
FT_Int charstring_len );
cff_decoder_parse_charstrings( CFF_Decoder* decoder,
FT_Byte* charstring_base,
FT_Int charstring_len );
FT_LOCAL( FT_Error )
CFF_Load_Glyph( CFF_GlyphSlot glyph,
CFF_Size size,
FT_Int glyph_index,
FT_Int load_flags );
cff_slot_load( CFF_GlyphSlot glyph,
CFF_Size size,
FT_Int glyph_index,
FT_Int load_flags );
FT_END_HEADER

287
src/cff/cffload.c
View File

@ -1047,7 +1047,7 @@
FT_LOCAL_DEF( FT_UShort )
CFF_Get_Standard_Encoding( FT_UInt charcode )
cff_get_standard_encoding( FT_UInt charcode )
{
return (FT_UShort)(charcode < 256 ? cff_standard_encoding[charcode] : 0);
}
@ -1172,9 +1172,10 @@
}
/* allocate a table containing pointers to an index's elements */
static FT_Error
cff_explicit_index( CFF_Index idx,
FT_Byte*** table )
cff_index_get_pointers( CFF_Index idx,
FT_Byte*** table )
{
FT_Error error = 0;
FT_Memory memory = idx->stream->memory;
@ -1205,10 +1206,10 @@
FT_LOCAL_DEF( FT_Error )
CFF_Access_Element( CFF_Index idx,
FT_UInt element,
FT_Byte** pbytes,
FT_ULong* pbyte_len )
cff_index_access_element( CFF_Index idx,
FT_UInt element,
FT_Byte** pbytes,
FT_ULong* pbyte_len )
{
FT_Error error = 0;
@ -1270,8 +1271,8 @@
FT_LOCAL_DEF( void )
CFF_Forget_Element( CFF_Index idx,
FT_Byte** pbytes )
cff_index_forget_element( CFF_Index idx,
FT_Byte** pbytes )
{
if ( idx->bytes == 0 )
{
@ -1284,8 +1285,8 @@
FT_LOCAL_DEF( FT_String* )
CFF_Get_Name( CFF_Index idx,
FT_UInt element )
cff_index_get_name( CFF_Index idx,
FT_UInt element )
{
FT_Memory memory = idx->stream->memory;
FT_Byte* bytes;
@ -1294,7 +1295,7 @@
FT_String* name = 0;
error = CFF_Access_Element( idx, element, &bytes, &byte_len );
error = cff_index_access_element( idx, element, &bytes, &byte_len );
if ( error )
goto Exit;
@ -1303,7 +1304,7 @@
FT_MEM_COPY( name, bytes, byte_len );
name[byte_len] = 0;
}
CFF_Forget_Element( idx, &bytes );
cff_index_forget_element( idx, &bytes );
Exit:
return name;
@ -1311,18 +1312,18 @@
FT_LOCAL_DEF( FT_String* )
CFF_Get_String( CFF_Index idx,
FT_UInt sid,
PSNames_Service psnames_interface )
cff_index_get_sid_string( CFF_Index idx,
FT_UInt sid,
PSNames_Service psnames_service )
{
/* if it is not a standard string, return it */
if ( sid > 390 )
return CFF_Get_Name( idx, sid - 391 );
return cff_index_get_name( idx, sid - 391 );
/* that's a standard string, fetch a copy from the PSName module */
{
FT_String* name = 0;
const char* adobe_name = psnames_interface->adobe_std_strings( sid );
const char* adobe_name = psnames_service->adobe_std_strings( sid );
FT_UInt len;
@ -1414,8 +1415,8 @@
FT_LOCAL_DEF( FT_Byte )
CFF_Get_FD( CFF_FDSelect select,
FT_UInt glyph_index )
cff_fd_select_get( CFF_FDSelect select,
FT_UInt glyph_index )
{
FT_Byte fd = 0;
@ -1484,23 +1485,7 @@
/*************************************************************************/
static void
CFF_Done_Encoding( CFF_Encoding encoding,
FT_Stream stream )
{
FT_Memory memory = stream->memory;
FT_FREE( encoding->codes );
FT_FREE( encoding->sids );
encoding->format = 0;
encoding->offset = 0;
encoding->codes = 0;
encoding->sids = 0;
}
static void
CFF_Done_Charset( CFF_Charset charset,
cff_charset_done( CFF_Charset charset,
FT_Stream stream )
{
FT_Memory memory = stream->memory;
@ -1509,12 +1494,11 @@
FT_FREE( charset->sids );
charset->format = 0;
charset->offset = 0;
charset->sids = 0;
}
static FT_Error
CFF_Load_Charset( CFF_Charset charset,
cff_charset_load( CFF_Charset charset,
FT_UInt num_glyphs,
FT_Stream stream,
FT_ULong base_offset,
@ -1525,13 +1509,6 @@
FT_UShort glyph_sid;
charset->offset = base_offset + offset;
/* Get the format of the table. */
if ( FT_STREAM_SEEK( charset->offset ) ||
FT_READ_BYTE( charset->format ) )
goto Exit;
/* If the the offset is greater than 2, we have to parse the */
/* charset table. */
if ( offset > 2 )
@ -1539,6 +1516,13 @@
FT_UInt j;
charset->offset = base_offset + offset;
/* Get the format of the table. */
if ( FT_STREAM_SEEK( charset->offset ) ||
FT_READ_BYTE( charset->format ) )
goto Exit;
/* Allocate memory for sids. */
if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) )
goto Exit;
@ -1549,12 +1533,15 @@
switch ( charset->format )
{
case 0:
for ( j = 1; j < num_glyphs; j++ )
if ( num_glyphs > 0 )
{
if ( FT_READ_USHORT( glyph_sid ) )
if ( FT_FRAME_ENTER( (num_glyphs-1)*2 ) )
goto Exit;
charset->sids[j] = glyph_sid;
for ( j = 1; j < num_glyphs; j++ )
charset->sids[j] = FT_GET_USHORT();
FT_FRAME_EXIT();
}
break;
@ -1587,14 +1574,14 @@
}
/* Fill in the range of sids -- `nleft + 1' glyphs. */
for ( i = 0; i <= nleft; i++, j++, glyph_sid++ )
for ( i = 0; j < num_glyphs && i <= nleft; i++, j++, glyph_sid++ )
charset->sids[j] = glyph_sid;
}
}
break;
default:
FT_ERROR(( "CFF_Load_Charset: invalid table format!\n" ));
FT_ERROR(( "cff_charset_load: invalid table format!\n" ));
error = CFF_Err_Invalid_File_Format;
goto Exit;
}
@ -1610,12 +1597,14 @@
/* the first num_glyphs, and hence must match the predefined */
/* charset *exactly*. */
charset->offset = offset; /* record charset type */
switch ( offset )
{
case 0:
if ( num_glyphs != 229 )
{
FT_ERROR(("CFF_Load_Charset: implicit charset not equal to\n"
FT_ERROR(("cff_charset_load: implicit charset not equal to\n"
"predefined charset (Adobe ISO-Latin)!\n" ));
error = CFF_Err_Invalid_File_Format;
goto Exit;
@ -1634,7 +1623,7 @@
case 1:
if ( num_glyphs != 166 )
{
FT_ERROR(( "CFF_Load_Charset: implicit charset not equal to\n"
FT_ERROR(( "cff_charset_load: implicit charset not equal to\n"
"predefined charset (Adobe Expert)!\n" ));
error = CFF_Err_Invalid_File_Format;
goto Exit;
@ -1653,7 +1642,7 @@
case 2:
if ( num_glyphs != 87 )
{
FT_ERROR(( "CFF_Load_Charset: implicit charset not equal to\n"
FT_ERROR(( "cff_charset_load: implicit charset not equal to\n"
"predefined charset (Adobe Expert Subset)!\n" ));
error = CFF_Err_Invalid_File_Format;
goto Exit;
@ -1681,8 +1670,7 @@
if ( error )
if ( charset->sids )
{
if ( charset->sids )
FT_FREE( charset->sids );
FT_FREE( charset->sids );
charset->format = 0;
charset->offset = 0;
charset->sids = 0;
@ -1692,8 +1680,19 @@
}
static void
cff_encoding_done( CFF_Encoding encoding )
{
encoding->format = 0;
encoding->offset = 0;
encoding->count = 0;
}
static FT_Error
CFF_Load_Encoding( CFF_Encoding encoding,
cff_encoding_load( CFF_Encoding encoding,
CFF_Charset charset,
FT_UInt num_glyphs,
FT_Stream stream,
@ -1705,7 +1704,7 @@
FT_UInt count;
FT_UInt j;
FT_UShort glyph_sid;
FT_Byte glyph_code;
FT_UInt glyph_code;
/* Check for charset->sids. If we do not have this, we fail. */
@ -1715,14 +1714,8 @@
goto Exit;
}
/* Allocate memory for sids/codes -- there are at most 256 sids/codes */
/* for an encoding. */
if ( FT_NEW_ARRAY( encoding->sids, 256 ) ||
FT_NEW_ARRAY( encoding->codes, 256 ) )
goto Exit;
/* Zero out the code to gid/sid mappings. */
for ( j = 0; j < 255; j++ )
for ( j = 0; j < 256; j++ )
{
encoding->sids [j] = 0;
encoding->codes[j] = 0;
@ -1751,32 +1744,43 @@
FT_READ_BYTE( count ) )
goto Exit;
encoding->count = (count+1);
switch ( encoding->format & 0x7F )
{
case 0:
for ( j = 1; j <= count; j++ )
{
if ( FT_READ_BYTE( glyph_code ) )
FT_Byte* p;
if ( FT_FRAME_ENTER( count ) )
goto Exit;
/* Make sure j is not too big. */
if ( j > num_glyphs )
goto Exit;
p = (FT_Byte*) stream->cursor;
for ( j = 1; j <= count; j++ )
{
glyph_code = *p++;
/* Assign code to GID mapping. */
encoding->codes[glyph_code] = (FT_UShort)j;
/* Make sure j is not too big. */
if ( (FT_UInt) glyph_code < num_glyphs )
{
/* Assign code to GID mapping. */
encoding->codes[glyph_code] = (FT_UShort)j;
/* Assign code to SID mapping. */
encoding->sids[glyph_code] = charset->sids[j];
/* Assign code to SID mapping. */
encoding->sids[glyph_code] = charset->sids[j];
}
}
FT_FRAME_EXIT();
}
break;
case 1:
{
FT_Byte nleft;
FT_UInt i = 1;
FT_UInt k;
FT_Byte nleft;
FT_UInt i = 1;
FT_UInt k;
/* Parse the Format1 ranges. */
@ -1797,21 +1801,21 @@
for ( k = i; k < nleft + i; k++, glyph_code++ )
{
/* Make sure k is not too big. */
if ( k > num_glyphs )
goto Exit;
if ( k < num_glyphs && glyph_code < 256 )
{
/* Assign code to GID mapping. */
encoding->codes[glyph_code] = (FT_UShort)k;
/* Assign code to GID mapping. */
encoding->codes[glyph_code] = (FT_UShort)k;
/* Assign code to SID mapping. */
encoding->sids[glyph_code] = charset->sids[k];
/* Assign code to SID mapping. */
encoding->sids[glyph_code] = charset->sids[k];
}
}
}
}
break;
default:
FT_ERROR(( "CFF_Load_Encoding: invalid table format!\n" ));
FT_ERROR(( "cff_encoding_load: invalid table format!\n" ));
error = CFF_Err_Invalid_File_Format;
goto Exit;
}
@ -1819,7 +1823,7 @@
/* Parse supplemental encodings, if any. */
if ( encoding->format & 0x80 )
{
FT_UInt glyph_id;
FT_UInt gindex;
/* count supplements */
@ -1841,14 +1845,14 @@
/* First, lookup GID which has been assigned to */
/* SID glyph_sid. */
for ( glyph_id = 0; glyph_id < num_glyphs; glyph_id++ )
for ( gindex = 0; gindex < num_glyphs; gindex++ )
{
if ( charset->sids[glyph_id] == glyph_sid )
if ( charset->sids[gindex] == glyph_sid )
{
encoding->codes[glyph_code] = (FT_UShort) gindex;
break;
}
}
/* Now, make the assignment. */
encoding->codes[glyph_code] = (FT_UShort)glyph_id;
}
}
}
@ -1862,6 +1866,8 @@
/* encoding (see the note at the end of section 12 in the CFF */
/* specification). */
encoding->count = 256;
switch ( offset )
{
case 0:
@ -1869,37 +1875,14 @@
FT_MEM_COPY( encoding->sids, cff_standard_encoding,
256 * sizeof ( FT_UShort ) );
/* Construct code to GID mapping from code */
/* to SID mapping and charset. */
for ( j = 0; j < 256; j++ )
{
/* If j is encoded, find the GID for it. */
if ( encoding->sids[j] )
{
for ( i = 1; i < num_glyphs; i++ )
/* We matched, so break. */
if ( charset->sids[i] == encoding->sids[j] )
break;
/* i will be equal to num_glyphs if we exited the above */
/* loop without a match. In this case, we also have to */
/* fix the code to SID mapping. */
if ( i == num_glyphs )
{
encoding->codes[j] = 0;
encoding->sids [j] = 0;
}
else
encoding->codes[j] = (FT_UShort)i;
}
}
break;
goto Populate;
case 1:
/* First, copy the code to SID mapping. */
FT_MEM_COPY( encoding->sids, cff_expert_encoding,
256 * sizeof ( FT_UShort ) );
Populate:
/* Construct code to GID mapping from code to SID mapping */
/* and charset. */
for ( j = 0; j < 256; j++ )
@ -1927,7 +1910,7 @@
break;
default:
FT_ERROR(( "CFF_Load_Encoding: invalid table format!\n" ));
FT_ERROR(( "cff_encoding_load: invalid table format!\n" ));
error = CFF_Err_Invalid_File_Format;
goto Exit;
}
@ -1936,28 +1919,12 @@
Exit:
/* Clean up if there was an error. */
if ( error )
{
if ( encoding->sids || encoding->codes )
{
if ( encoding->sids )
FT_FREE( encoding->sids );
if ( encoding->codes )
FT_FREE( encoding->codes );
charset->format = 0;
charset->offset = 0;
charset->sids = 0;
}
}
return error;
}
static FT_Error
CFF_Load_SubFont( CFF_SubFont font,
cff_subfont_load( CFF_SubFont font,
CFF_Index idx,
FT_UInt font_index,
FT_Stream stream,
@ -1971,7 +1938,7 @@
CFF_Private priv = &font->private_dict;
CFF_Parser_Init( &parser, CFF_CODE_TOPDICT, &font->font_dict );
cff_parser_init( &parser, CFF_CODE_TOPDICT, &font->font_dict );
/* set defaults */
FT_MEM_SET( top, 0, sizeof ( *top ) );
@ -1983,10 +1950,10 @@
top->font_matrix.yy = 0x10000L;
top->cid_count = 8720;
error = CFF_Access_Element( idx, font_index, &dict, &dict_len ) ||
CFF_Parser_Run( &parser, dict, dict + dict_len );
error = cff_index_access_element( idx, font_index, &dict, &dict_len ) ||
cff_parser_run( &parser, dict, dict + dict_len );
CFF_Forget_Element( idx, &dict );
cff_index_forget_element( idx, &dict );
if ( error )
goto Exit;
@ -2007,13 +1974,13 @@
priv->expansion_factor = (FT_Fixed)0.06 * 0x10000L;
priv->blue_scale = (FT_Fixed)0.039625 * 0x10000L;
CFF_Parser_Init( &parser, CFF_CODE_PRIVATE, priv );
cff_parser_init( &parser, CFF_CODE_PRIVATE, priv );
if ( FT_STREAM_SEEK( base_offset + font->font_dict.private_offset ) ||
FT_FRAME_ENTER( font->font_dict.private_size ) )
goto Exit;
error = CFF_Parser_Run( &parser,
error = cff_parser_run( &parser,
(FT_Byte*)stream->cursor,
(FT_Byte*)stream->limit );
FT_FRAME_EXIT();
@ -2033,7 +2000,7 @@
goto Exit;
font->num_local_subrs = font->local_subrs_index.count;
error = cff_explicit_index( &font->local_subrs_index,
error = cff_index_get_pointers( &font->local_subrs_index,
&font->local_subrs );
if ( error )
goto Exit;
@ -2045,7 +2012,7 @@
static void
CFF_Done_SubFont( FT_Memory memory,
cff_subfont_done( FT_Memory memory,
CFF_SubFont subfont )
{
if ( subfont )
@ -2057,7 +2024,7 @@
FT_LOCAL_DEF( FT_Error )
CFF_Load_Font( FT_Stream stream,
cff_font_load( FT_Stream stream,
FT_Int face_index,
CFF_Font font )
{
@ -2080,7 +2047,7 @@
CFF_FontRecDict dict;
FT_MEM_SET( font, 0, sizeof ( *font ) );
FT_ZERO( font );
font->stream = stream;
font->memory = memory;
@ -2116,7 +2083,7 @@
font->num_faces = font->name_index.count;
if ( face_index >= (FT_Int)font->num_faces )
{
FT_ERROR(( "CFF_Load_Font: incorrect face index = %d\n",
FT_ERROR(( "cff_font_load: incorrect face index = %d\n",
face_index ));
error = CFF_Err_Invalid_Argument;
}
@ -2126,7 +2093,7 @@
goto Exit;
/* now, parse the top-level font dictionary */
error = CFF_Load_SubFont( &font->top_font,
error = cff_subfont_load( &font->top_font,
&font->font_dict_index,
face_index,
stream,
@ -2153,7 +2120,7 @@
if ( fd_index.count > CFF_MAX_CID_FONTS )
{
FT_ERROR(( "CFF_Load_Font: FD array too large in CID font\n" ));
FT_ERROR(( "cff_font_load: FD array too large in CID font\n" ));
goto Fail_CID;
}
@ -2170,7 +2137,7 @@
for ( idx = 0; idx < fd_index.count; idx++ )
{
sub = font->subfonts[idx];
error = CFF_Load_SubFont( sub, &fd_index, idx,
error = cff_subfont_load( sub, &fd_index, idx,
stream, base_offset );
if ( error )
goto Fail_CID;
@ -2194,7 +2161,7 @@
/* read the charstrings index now */
if ( dict->charstrings_offset == 0 )
{
FT_ERROR(( "CFF_Load_Font: no charstrings offset!\n" ));
FT_ERROR(( "cff_font_load: no charstrings offset!\n" ));
error = CFF_Err_Unknown_File_Format;
goto Exit;
}
@ -2210,19 +2177,19 @@
font->num_global_subrs = font->global_subrs_index.count;
font->num_glyphs = font->charstrings_index.count;
error = cff_explicit_index( &font->global_subrs_index,
error = cff_index_get_pointers( &font->global_subrs_index,
&font->global_subrs ) ;
if ( error )
goto Exit;
/* read the Charset and Encoding tables when available */
error = CFF_Load_Charset( &font->charset, font->num_glyphs, stream,
error = cff_charset_load( &font->charset, font->num_glyphs, stream,
base_offset, dict->charset_offset );
if ( error )
goto Exit;
error = CFF_Load_Encoding( &font->encoding,
error = cff_encoding_load( &font->encoding,
&font->charset,
font->num_glyphs,
stream,
@ -2232,7 +2199,7 @@
goto Exit;
/* get the font name */
font->font_name = CFF_Get_Name( &font->name_index, face_index );
font->font_name = cff_index_get_name( &font->name_index, face_index );
Exit:
return error;
@ -2240,7 +2207,7 @@
FT_LOCAL_DEF( void )
CFF_Done_Font( CFF_Font font )
cff_font_done( CFF_Font font )
{
FT_Memory memory = font->memory;
FT_UInt idx;
@ -2257,15 +2224,15 @@
if ( font->num_subfonts > 0 )
{
for ( idx = 0; idx < font->num_subfonts; idx++ )
CFF_Done_SubFont( memory, font->subfonts[idx] );
cff_subfont_done( memory, font->subfonts[idx] );
FT_FREE( font->subfonts );
}
CFF_Done_Encoding( &font->encoding, font->stream );
CFF_Done_Charset( &font->charset, font->stream );
cff_encoding_done( &font->encoding );
cff_charset_done( &font->charset, font->stream );
CFF_Done_SubFont( memory, &font->top_font );
cff_subfont_done( memory, &font->top_font );
CFF_Done_FD_Select( &font->fd_select, font->stream );

32
src/cff/cffload.h
View File

@ -28,42 +28,42 @@
FT_BEGIN_HEADER
FT_LOCAL( FT_UShort )
CFF_Get_Standard_Encoding( FT_UInt charcode );
cff_get_standard_encoding( FT_UInt charcode );
FT_LOCAL( FT_String* )
CFF_Get_Name( CFF_Index idx,
FT_UInt element );
cff_index_get_name( CFF_Index idx,
FT_UInt element );
FT_LOCAL( FT_String* )
CFF_Get_String( CFF_Index idx,
FT_UInt sid,
PSNames_Service psnames_interface );
cff_index_get_sid_string( CFF_Index idx,
FT_UInt sid,
PSNames_Service psnames_interface );
FT_LOCAL( FT_Error )
CFF_Access_Element( CFF_Index idx,
FT_UInt element,
FT_Byte** pbytes,
FT_ULong* pbyte_len );
cff_index_access_element( CFF_Index idx,
FT_UInt element,
FT_Byte** pbytes,
FT_ULong* pbyte_len );
FT_LOCAL( void )
CFF_Forget_Element( CFF_Index idx,
FT_Byte** pbytes );
cff_index_forget_element( CFF_Index idx,
FT_Byte** pbytes );
FT_LOCAL( FT_Error )
CFF_Load_Font( FT_Stream stream,
cff_font_load( FT_Stream stream,
FT_Int face_index,
CFF_Font font );
FT_LOCAL( void )
CFF_Done_Font( CFF_Font font );
cff_font_done( CFF_Font font );
FT_LOCAL( FT_Byte )
CFF_Get_FD( CFF_FDSelect select,
FT_UInt glyph_index );
cff_fd_select_get( CFF_FDSelect select,
FT_UInt glyph_index );
FT_END_HEADER

121
src/cff/cffobjs.c
View File

@ -28,7 +28,7 @@
#include FT_INTERNAL_POSTSCRIPT_HINTS_H
#include "cffobjs.h"
#include "cffload.h"
#include "cffcmap.h"
#include "cfferrs.h"
@ -53,7 +53,7 @@
static PSH_Globals_Funcs
CFF_Size_Get_Globals_Funcs( CFF_Size size )
cff_size_get_globals_funcs( CFF_Size size )
{
CFF_Face face = (CFF_Face)size->face;
CFF_Font font = (CFF_FontRec *)face->extra.data;
@ -70,14 +70,14 @@
FT_LOCAL_DEF( void )
CFF_Size_Done( CFF_Size size )
cff_size_done( CFF_Size size )
{
if ( size->internal )
{
PSH_Globals_Funcs funcs;
funcs = CFF_Size_Get_Globals_Funcs( size );
funcs = cff_size_get_globals_funcs( size );
if ( funcs )
funcs->destroy( (PSH_Globals)size->internal );
@ -87,10 +87,10 @@
FT_LOCAL_DEF( FT_Error )
CFF_Size_Init( CFF_Size size )
cff_size_init( CFF_Size size )
{
FT_Error error = 0;
PSH_Globals_Funcs funcs = CFF_Size_Get_Globals_Funcs( size );
PSH_Globals_Funcs funcs = cff_size_get_globals_funcs( size );
if ( funcs )
@ -160,9 +160,9 @@
FT_LOCAL_DEF( FT_Error )
CFF_Size_Reset( CFF_Size size )
cff_size_reset( CFF_Size size )
{
PSH_Globals_Funcs funcs = CFF_Size_Get_Globals_Funcs( size );
PSH_Globals_Funcs funcs = cff_size_get_globals_funcs( size );
FT_Error error = 0;
@ -182,14 +182,14 @@
/*************************************************************************/
FT_LOCAL_DEF( void )
CFF_GlyphSlot_Done( CFF_GlyphSlot slot )
cff_slot_done( CFF_GlyphSlot slot )
{
slot->root.internal->glyph_hints = 0;
}
FT_LOCAL_DEF( FT_Error )
CFF_GlyphSlot_Init( CFF_GlyphSlot slot )
cff_slot_init( CFF_GlyphSlot slot )
{
CFF_Face face = (CFF_Face)slot->root.face;
CFF_Font font = (CFF_FontRec *)face->extra.data;
@ -224,7 +224,7 @@
/*************************************************************************/
static FT_String*
CFF_StrCopy( FT_Memory memory,
cff_strcpy( FT_Memory memory,
const FT_String* source )
{
FT_Error error;
@ -245,8 +245,9 @@
FT_LOCAL_DEF( FT_Error )
CFF_Face_Init( FT_Stream stream,
cff_face_init( FT_Stream stream,
CFF_Face face,
FT_Int face_index,
FT_Int num_params,
@ -341,11 +342,12 @@
goto Exit;
face->extra.data = cff;
error = CFF_Load_Font( stream, face_index, cff );
error = cff_font_load( stream, face_index, cff );
if ( error )
goto Exit;
cff->pshinter = pshinter;
cff->psnames = psnames;
/* Complement the root flags with some interesting information. */
/* Note that this is only necessary for pure CFF and CEF fonts. */
@ -361,7 +363,7 @@
/* we need the `PSNames' module for pure-CFF and CEF formats */
if ( !psnames )
{
FT_ERROR(( "CFF_Face_Init:" ));
FT_ERROR(( "cff_face_init:" ));
FT_ERROR(( " cannot open CFF & CEF fonts\n" ));
FT_ERROR(( " " ));
FT_ERROR(( " without the `PSNames' module\n" ));
@ -395,11 +397,11 @@
root->units_per_EM = 1000;
/* retrieve font family & style name */
root->family_name = CFF_Get_Name( &cff->name_index, face_index );
root->family_name = cff_index_get_name( &cff->name_index, face_index );
if ( dict->cid_registry )
root->style_name = CFF_StrCopy( memory, "Regular" ); /* XXXX */
root->style_name = cff_strcpy( memory, "Regular" ); /* XXXX */
else
root->style_name = CFF_Get_String( &cff->string_index,
root->style_name = cff_index_get_sid_string( &cff->string_index,
dict->weight,
psnames );
@ -445,7 +447,82 @@
root->style_flags = flags;
/* XXX: no charmaps for pure CFF fonts currently! */
/*******************************************************************/
/* */
/* Compute char maps. */
/* */
/* try to synthetize a Unicode charmap if there is none available */
/* already. If an OpenType font contains a Unicode "cmap", we */
/* will use it, wathever be in the CFF part of the file.. */
{
FT_CharMapRec cmaprec;
FT_CharMap cmap;
FT_UInt nn;
CFF_Encoding encoding = &cff->encoding;
for ( nn = 0; nn < (FT_UInt) root->num_charmaps; nn++ )
{
cmap = root->charmaps[nn];
/* Windows Unicode (3,1) ? */
if ( cmap->platform_id == 3 && cmap->platform_id == 1 )
goto Skip_Unicode;
/* Deprecated Unicode platform id ?? */
if ( cmap->platform_id == 0 )
break; /* Standard Unicode (deprecated) */
}
/* we didn't find a Unicode charmap, synthetize one */
#ifdef FT_CONFIG_OPTION_USE_CMAPS
cmaprec.face = root;
cmaprec.platform_id = 3;
cmaprec.encoding_id = 1;
cmaprec.encoding = ft_encoding_unicode;
FT_CMap_New( &cff_cmap_unicode_class_rec, NULL, &cmaprec, NULL );
Skip_Unicode:
if ( encoding->count > 0 )
{
FT_CMap_Class clazz;
cmaprec.face = root;
cmaprec.platform_id = 7; /* Adobe platform id */
switch( encoding->offset )
{
case 0:
cmaprec.encoding_id = 0;
cmaprec.encoding = ft_encoding_adobe_standard;
clazz = &cff_cmap_encoding_class_rec;
break;
case 1:
cmaprec.encoding_id = 1;
cmaprec.encoding = ft_encoding_adobe_expert;
clazz = &cff_cmap_encoding_class_rec;
break;
default:
cmaprec.encoding_id = 3;
cmaprec.encoding = ft_encoding_adobe_custom;
clazz = &cff_cmap_encoding_class_rec;
}
FT_CMap_New( clazz, NULL, &cmaprec, NULL );
#else /* !FT_CONFIG_OPTION_USE_CMAPS */
/* unimplemented !! */
#endif /* !FT_CONFIG_OPTION_USE_CMAPS */
}
}
}
}
@ -459,7 +536,7 @@
FT_LOCAL_DEF( void )
CFF_Face_Done( CFF_Face face )
cff_face_done( CFF_Face face )
{
FT_Memory memory = face->root.memory;
SFNT_Service sfnt = (SFNT_Service)face->sfnt;
@ -474,7 +551,7 @@
if ( cff )
{
CFF_Done_Font( cff );
cff_font_done( cff );
FT_FREE( face->extra.data );
}
}
@ -482,7 +559,7 @@
FT_LOCAL_DEF( FT_Error )
CFF_Driver_Init( CFF_Driver driver )
cff_driver_init( CFF_Driver driver )
{
FT_UNUSED( driver );
@ -491,7 +568,7 @@
FT_LOCAL_DEF( void )
CFF_Driver_Done( CFF_Driver driver )
cff_driver_done( CFF_Driver driver )
{
FT_UNUSED( driver );
}

19
src/cff/cffobjs.h
View File

@ -23,6 +23,7 @@
#include <ft2build.h>
#include FT_INTERNAL_OBJECTS_H
#include FT_INTERNAL_CFF_TYPES_H
#include FT_INTERNAL_TRUETYPE_TYPES_H
#include FT_INTERNAL_POSTSCRIPT_NAMES_H
@ -110,19 +111,19 @@ FT_BEGIN_HEADER
FT_LOCAL( FT_Error )
CFF_Size_Init( CFF_Size size );
cff_size_init( CFF_Size size );
FT_LOCAL( void )
CFF_Size_Done( CFF_Size size );
cff_size_done( CFF_Size size );
FT_LOCAL( FT_Error )
CFF_Size_Reset( CFF_Size size );
cff_size_reset( CFF_Size size );
FT_LOCAL( void )
CFF_GlyphSlot_Done( CFF_GlyphSlot slot );
cff_slot_done( CFF_GlyphSlot slot );
FT_LOCAL( FT_Error )
CFF_GlyphSlot_Init( CFF_GlyphSlot slot );
cff_slot_init( CFF_GlyphSlot slot );
/*************************************************************************/
@ -130,14 +131,14 @@ FT_BEGIN_HEADER
/* Face functions */
/* */
FT_LOCAL( FT_Error )
CFF_Face_Init( FT_Stream stream,
cff_face_init( FT_Stream stream,
CFF_Face face,
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params );
FT_LOCAL( void )
CFF_Face_Done( CFF_Face face );
cff_face_done( CFF_Face face );
/*************************************************************************/
@ -145,10 +146,10 @@ FT_BEGIN_HEADER
/* Driver functions */
/* */
FT_LOCAL( FT_Error )
CFF_Driver_Init( CFF_Driver driver );
cff_driver_init( CFF_Driver driver );
FT_LOCAL( void )
CFF_Driver_Done( CFF_Driver driver );
cff_driver_done( CFF_Driver driver );
FT_END_HEADER

4
src/cff/cffparse.c
View File

@ -64,7 +64,7 @@
FT_LOCAL_DEF( void )
CFF_Parser_Init( CFF_Parser parser,
cff_parser_init( CFF_Parser parser,
FT_UInt code,
void* object )
{
@ -480,7 +480,7 @@
FT_LOCAL_DEF( FT_Error )
CFF_Parser_Run( CFF_Parser parser,
cff_parser_run( CFF_Parser parser,
FT_Byte* start,
FT_Byte* limit )
{

4
src/cff/cffparse.h
View File

@ -50,12 +50,12 @@ FT_BEGIN_HEADER
FT_LOCAL( void )
CFF_Parser_Init( CFF_Parser parser,
cff_parser_init( CFF_Parser parser,
FT_UInt code,
void* object );
FT_LOCAL( FT_Error )
CFF_Parser_Run( CFF_Parser parser,
cff_parser_run( CFF_Parser parser,
FT_Byte* start,
FT_Byte* limit );

1
src/cff/rules.mk
View File

@ -28,6 +28,7 @@ CFF_DRV_SRC := $(CFF_DIR_)cffobjs.c \
$(CFF_DIR_)cffload.c \
$(CFF_DIR_)cffgload.c \
$(CFF_DIR_)cffparse.c \
$(CFF_DIR_)cffcmap.c \
$(CFF_DIR_)cffdrivr.c
# CFF driver headers