Al-Qurtas-Islamic-bank-The-.../src/sfnt/sfobjs.c

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/***************************************************************************/
/* */
/* sfobjs.c */
/* */
/* SFNT object management (base). */
/* */
/* Copyright 1996-2001, 2002, 2003 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
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#include <ft2build.h>
#include "sfobjs.h"
#include "ttload.h"
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#include "ttcmap0.h"
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#include FT_INTERNAL_SFNT_H
#include FT_TRUETYPE_IDS_H
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#include FT_TRUETYPE_TAGS_H
#include FT_SERVICE_POSTSCRIPT_CMAPS_H
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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#include "sferrors.h"
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/*************************************************************************/
/* */
/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
/* messages during execution. */
/* */
#undef FT_COMPONENT
#define FT_COMPONENT trace_sfobjs
/* convert a UTF-16 name entry to ASCII */
static FT_String*
tt_name_entry_ascii_from_utf16( TT_NameEntry entry,
FT_Memory memory )
{
FT_String* string;
FT_UInt len, code, n;
FT_Byte* read = (FT_Byte*)entry->string;
len = (FT_UInt)entry->stringLength / 2;
if ( FT_MEM_NEW_ARRAY( string, len + 1 ) )
return NULL;
for ( n = 0; n < len; n++ )
{
code = FT_NEXT_USHORT( read );
if ( code < 32 || code > 127 )
code = '?';
string[n] = (char)code;
}
string[len] = 0;
return string;
}
/* convert a UCS-4 name entry to ASCII */
static FT_String*
tt_name_entry_ascii_from_ucs4( TT_NameEntry entry,
FT_Memory memory )
{
FT_String* string;
FT_UInt len, code, n;
FT_Byte* read = (FT_Byte*)entry->string;
len = (FT_UInt)entry->stringLength / 4;
if ( FT_MEM_NEW_ARRAY( string, len + 1 ) )
return NULL;
for ( n = 0; n < len; n++ )
{
code = (FT_UInt)FT_NEXT_ULONG( read );
if ( code < 32 || code > 127 )
code = '?';
string[n] = (char)code;
}
string[len] = 0;
return string;
}
/* convert an Apple Roman or symbol name entry to ASCII */
static FT_String*
tt_name_entry_ascii_from_other( TT_NameEntry entry,
FT_Memory memory )
{
FT_String* string;
FT_UInt len, code, n;
FT_Byte* read = (FT_Byte*)entry->string;
len = (FT_UInt)entry->stringLength;
if ( FT_MEM_NEW_ARRAY( string, len + 1 ) )
return NULL;
for ( n = 0; n < len; n++ )
{
code = *read++;
if ( code < 32 || code > 127 )
code = '?';
string[n] = (char)code;
}
string[len] = 0;
return string;
}
typedef FT_String* (*TT_NameEntry_ConvertFunc)( TT_NameEntry entry,
FT_Memory memory );
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/*************************************************************************/
/* */
/* <Function> */
/* tt_face_get_name */
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/* */
/* <Description> */
/* Returns a given ENGLISH name record in ASCII. */
/* */
/* <Input> */
/* face :: A handle to the source face object. */
/* */
/* nameid :: The name id of the name record to return. */
/* */
/* <Return> */
/* Character string. NULL if no name is present. */
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/* */
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static FT_String*
tt_face_get_name( TT_Face face,
FT_UShort nameid )
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{
FT_Memory memory = face->root.memory;
FT_String* result = NULL;
FT_UShort n;
TT_NameEntryRec* rec;
FT_Int found_apple = -1;
FT_Int found_win = -1;
FT_Int found_unicode = -1;
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TT_NameEntry_ConvertFunc convert;
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rec = face->name_table.names;
for ( n = 0; n < face->num_names; n++, rec++ )
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{
/* According to the OpenType 1.3 specification, only Microsoft or */
/* Apple platform IDs might be used in the `name' table. The */
/* `Unicode' platform is reserved for the `cmap' table, and the */
/* `Iso' one is deprecated. */
/* */
/* However, the Apple TrueType specification doesn't say the same */
/* thing and goes to suggest that all Unicode `name' table entries */
/* should be coded in UTF-16 (in big-endian format I suppose). */
/* */
if ( rec->nameID == nameid && rec->stringLength > 0 )
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{
switch ( rec->platformID )
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{
case TT_PLATFORM_APPLE_UNICODE:
case TT_PLATFORM_ISO:
/* there is `languageID' to check there. We should use this */
/* field only as a last solution when nothing else is */
/* available. */
/* */
found_unicode = n;
break;
case TT_PLATFORM_MACINTOSH:
if ( rec->languageID == TT_MAC_LANGID_ENGLISH )
found_apple = n;
break;
case TT_PLATFORM_MICROSOFT:
/* we only take a non-English name when there is nothing */
/* else available in the font */
/* */
if ( found_win == -1 || ( rec->languageID & 0x3FF ) == 0x009 )
{
switch ( rec->encodingID )
{
case TT_MS_ID_SYMBOL_CS:
case TT_MS_ID_UNICODE_CS:
case TT_MS_ID_UCS_4:
found_win = n;
break;
default:
;
}
}
break;
default:
;
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}
}
}
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/* some fonts contain invalid Unicode or Macintosh formatted entries; */
/* we will thus favor names encoded in Windows formats if available */
/* */
convert = NULL;
if ( found_win >= 0 )
{
rec = face->name_table.names + found_win;
switch ( rec->encodingID )
{
case TT_MS_ID_UNICODE_CS:
case TT_MS_ID_SYMBOL_CS:
convert = tt_name_entry_ascii_from_utf16;
break;
case TT_MS_ID_UCS_4:
convert = tt_name_entry_ascii_from_ucs4;
break;
default:
;
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}
}
else if ( found_apple >= 0 )
{
rec = face->name_table.names + found_apple;
convert = tt_name_entry_ascii_from_other;
}
else if ( found_unicode >= 0 )
{
rec = face->name_table.names + found_unicode;
convert = tt_name_entry_ascii_from_utf16;
}
if ( rec && convert )
{
if ( rec->string == NULL )
{
* src/winfonts/winfnt.c (FNT_Load_Glyph): Use first_char in computation of glyph_index. (FNT_Size_Set_Pixels): To find a strike, first check pixel_height only, then try to find a better hit by comparing pixel_width also. Without this fix it isn't possible to access all strikes. Also compute metrics.max_advance to be in sync with other bitmap drivers. * src/base/ftobjs.c (FT_Set_Char_Size): Remove redundant code. (FT_Set_Pixel_Size): Assign value to `metrics' after validation of arguments. Synchronize computation of height and width for bitmap strikes. The `width' field in the FT_Bitmap_Size structure is now only useful to enumerate different strikes. The `max_advance' field of the FT_Size_Metrics structure should be used to get the (maximum) width of a strike. * src/bdf/bdfdrivr.c (BDF_Face_Init): Don't use AVERAGE_WIDTH for computing `available_sizes->width' but make it always equal to `available_sizes->height'. * src/pcf/pcfread.c (pcf_load_font): Don't use RESOLUTION_X for computing `available_sizes->width' but make it always equal to `available_sizes->height'. * src/truetype/ttdriver.c (Set_Pixel_Sizes): Pass only single argument to function. * src/psnames/psmodule.c (ps_unicode_value): Handle `.' after `uniXXXX' and `uXXXX[X[X]]'. * src/bdf/bdfdrivr.c: s/FT_Err_/BDF_Err/. * src/cache/ftccache.c, src/cache/ftcsbits.c, src/cache/ftlru.c: s/FT_Err_/FTC_Err_/. * src/cff/cffcmap.c: s/FT_Err_/CFF_Err_/. * src/pcf/pcfdrivr.c: s/FT_Err_/PCF_Err_/. * src/psaux/t1cmap.c: Include psauxerr.h. s/FT_Err_/PSaux_Err_/. * src/pshinter/pshnterr.h: New file. * src/pshinter/rules.mk: Updated. * src/pshinter/pshalgo.c, src/pshinter/pshrec.c: Include pshnterr.h. s/FT_Err_/PSH_Err_/. * src/pfr/pfrdrivr.c, src/pfr/pfrobjs.c, src/pfr/pfrsbit.c: s/FT_Err_/PFR_Err_/. * src/sfnt/sfdriver.c, src/sfnt/sfobjs.c, src/sfnt/ttcmap0.c, src/sfnt/ttload.c: s/FT_Err_/SFNT_Err_/. * src/truetype/ttgload.c: s/FT_Err_/TT_Err_/. * src/gzip/ftgzip.c: Load FT_MODULE_ERRORS_H and define FT_ERR_PREFIX and FT_ERR_BASE. s/FT_Err_/Gzip_Err_/.
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FT_Error error = SFNT_Err_Ok;
FT_Stream stream = face->name_table.stream;
FT_UNUSED( error );
if ( FT_NEW_ARRAY ( rec->string, rec->stringLength ) ||
FT_STREAM_SEEK( rec->stringOffset ) ||
FT_STREAM_READ( rec->string, rec->stringLength ) )
{
FT_FREE( rec->string );
rec->stringLength = 0;
result = NULL;
goto Exit;
}
}
result = convert( rec, memory );
}
Exit:
return result;
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}
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static FT_Encoding
sfnt_find_encoding( int platform_id,
int encoding_id )
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{
typedef struct TEncoding
{
int platform_id;
int encoding_id;
FT_Encoding encoding;
} TEncoding;
static
const TEncoding tt_encodings[] =
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{
{ TT_PLATFORM_ISO, -1, FT_ENCODING_UNICODE },
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{ TT_PLATFORM_APPLE_UNICODE, -1, FT_ENCODING_UNICODE },
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{ TT_PLATFORM_MACINTOSH, TT_MAC_ID_ROMAN, FT_ENCODING_APPLE_ROMAN },
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{ TT_PLATFORM_MICROSOFT, TT_MS_ID_SYMBOL_CS, FT_ENCODING_MS_SYMBOL },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_UCS_4, FT_ENCODING_UNICODE },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_UNICODE_CS, FT_ENCODING_UNICODE },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_SJIS, FT_ENCODING_SJIS },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_GB2312, FT_ENCODING_GB2312 },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_BIG_5, FT_ENCODING_BIG5 },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_WANSUNG, FT_ENCODING_WANSUNG },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_JOHAB, FT_ENCODING_JOHAB }
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};
const TEncoding *cur, *limit;
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cur = tt_encodings;
limit = cur + sizeof ( tt_encodings ) / sizeof ( tt_encodings[0] );
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for ( ; cur < limit; cur++ )
{
if ( cur->platform_id == platform_id )
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{
if ( cur->encoding_id == encoding_id ||
cur->encoding_id == -1 )
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return cur->encoding;
}
}
return FT_ENCODING_NONE;
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}
FT_LOCAL_DEF( FT_Error )
sfnt_init_face( FT_Stream stream,
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TT_Face face,
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
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{
FT_Error error;
FT_Library library = face->root.driver->root.library;
SFNT_Service sfnt;
SFNT_HeaderRec sfnt_header;
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/* for now, parameters are unused */
FT_UNUSED( num_params );
FT_UNUSED( params );
sfnt = (SFNT_Service)face->sfnt;
if ( !sfnt )
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{
sfnt = (SFNT_Service)FT_Get_Module_Interface( library, "sfnt" );
if ( !sfnt )
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{
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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error = SFNT_Err_Invalid_File_Format;
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goto Exit;
}
face->sfnt = sfnt;
face->goto_table = sfnt->goto_table;
}
FT_FACE_FIND_GLOBAL_SERVICE( face, face->psnames, POSTSCRIPT_CMAPS );
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/* check that we have a valid TrueType file */
error = sfnt->load_sfnt_header( face, stream, face_index, &sfnt_header );
if ( error )
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goto Exit;
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face->format_tag = sfnt_header.format_tag;
face->num_tables = sfnt_header.num_tables;
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/* Load font directory */
error = sfnt->load_directory( face, stream, &sfnt_header );
if ( error )
goto Exit;
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face->root.num_faces = face->ttc_header.count;
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if ( face->root.num_faces < 1 )
face->root.num_faces = 1;
Exit:
return error;
}
#undef LOAD_
#define LOAD_( x ) ( ( error = sfnt->load_##x( face, stream ) ) \
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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!= SFNT_Err_Ok )
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FT_LOCAL_DEF( FT_Error )
sfnt_load_face( FT_Stream stream,
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TT_Face face,
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
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{
FT_Error error;
FT_Bool has_outline;
FT_Bool is_apple_sbit;
SFNT_Service sfnt = (SFNT_Service)face->sfnt;
FT_UNUSED( face_index );
FT_UNUSED( num_params );
FT_UNUSED( params );
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/* Load tables */
/* We now support two SFNT-based bitmapped font formats. They */
/* are recognized easily as they do not include a `glyf' */
/* table. */
/* */
/* The first format comes from Apple, and uses a table named */
/* `bhed' instead of `head' to store the font header (using */
/* the same format). It also doesn't include horizontal and */
/* vertical metrics tables (i.e. `hhea' and `vhea' tables are */
/* missing). */
/* */
/* The other format comes from Microsoft, and is used with */
/* WinCE/PocketPC. It looks like a standard TTF, except that */
/* it doesn't contain outlines. */
/* */
/* do we have outlines in there? */
#ifdef FT_CONFIG_OPTION_INCREMENTAL
has_outline = FT_BOOL( face->root.internal->incremental_interface != 0 ||
tt_face_lookup_table( face, TTAG_glyf ) != 0 ||
tt_face_lookup_table( face, TTAG_CFF ) != 0 );
#else
has_outline = FT_BOOL( tt_face_lookup_table( face, TTAG_glyf ) != 0 ||
tt_face_lookup_table( face, TTAG_CFF ) != 0 );
#endif
is_apple_sbit = 0;
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
/* if this font doesn't contain outlines, we try to load */
/* a `bhed' table */
if ( !has_outline )
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is_apple_sbit = FT_BOOL( !LOAD_( bitmap_header ) );
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
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/* load the font header (`head' table) if this isn't an Apple */
/* sbit font file */
if ( !is_apple_sbit && LOAD_( header ) )
goto Exit;
2002-02-08 07:23:50 +01:00
/* the following tables are often not present in embedded TrueType */
/* fonts within PDF documents, so don't check for them. */
(void)LOAD_( max_profile );
(void)LOAD_( charmaps );
/* the following tables are optional in PCL fonts -- */
/* don't check for errors */
(void)LOAD_( names );
(void)LOAD_( psnames );
/* do not load the metrics headers and tables if this is an Apple */
/* sbit font file */
if ( !is_apple_sbit )
{
/* load the `hhea' and `hmtx' tables at once */
error = sfnt->load_metrics( face, stream, 0 );
if ( error )
goto Exit;
/* try to load the `vhea' and `vmtx' tables at once */
error = sfnt->load_metrics( face, stream, 1 );
if ( error )
goto Exit;
if ( LOAD_( os2 ) )
goto Exit;
}
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/* the optional tables */
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
/* embedded bitmap support. */
if ( sfnt->load_sbits && LOAD_( sbits ) )
{
/* return an error if this font file has no outlines */
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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if ( error == SFNT_Err_Table_Missing && has_outline )
error = SFNT_Err_Ok;
else
goto Exit;
}
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
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if ( LOAD_( hdmx ) ||
LOAD_( gasp ) ||
LOAD_( kerning ) ||
LOAD_( pclt ) )
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goto Exit;
face->root.family_name = tt_face_get_name( face,
TT_NAME_ID_FONT_FAMILY );
face->root.style_name = tt_face_get_name( face,
TT_NAME_ID_FONT_SUBFAMILY );
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/* now set up root fields */
{
FT_Face root = &face->root;
FT_Int32 flags = 0;
FT_Memory memory;
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2000-05-28 19:15:37 +02:00
memory = root->memory;
/*********************************************************************/
/* */
/* Compute face flags. */
/* */
if ( has_outline == TRUE )
flags = FT_FACE_FLAG_SCALABLE; /* scalable outlines */
flags |= FT_FACE_FLAG_SFNT | /* SFNT file format */
FT_FACE_FLAG_HORIZONTAL; /* horizontal data */
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#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
/* might need more polish to detect the presence of a Postscript */
/* name table in the font */
flags |= FT_FACE_FLAG_GLYPH_NAMES;
#endif
/* fixed width font? */
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if ( face->postscript.isFixedPitch )
flags |= FT_FACE_FLAG_FIXED_WIDTH;
/* vertical information? */
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if ( face->vertical_info )
flags |= FT_FACE_FLAG_VERTICAL;
/* kerning available ? */
if ( face->kern_pairs )
flags |= FT_FACE_FLAG_KERNING;
root->face_flags = flags;
/*********************************************************************/
/* */
/* Compute style flags. */
/* */
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flags = 0;
if ( has_outline == TRUE && face->os2.version != 0xFFFFU )
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{
/* we have an OS/2 table; use the `fsSelection' field */
if ( face->os2.fsSelection & 1 )
flags |= FT_STYLE_FLAG_ITALIC;
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if ( face->os2.fsSelection & 32 )
flags |= FT_STYLE_FLAG_BOLD;
}
else
{
/* this is an old Mac font, use the header field */
if ( face->header.Mac_Style & 1 )
flags |= FT_STYLE_FLAG_BOLD;
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if ( face->header.Mac_Style & 2 )
flags |= FT_STYLE_FLAG_ITALIC;
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}
root->style_flags = flags;
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/*********************************************************************/
/* */
/* Polish the charmaps. */
/* */
/* Try to set the charmap encoding according to the platform & */
/* encoding ID of each charmap. */
/* */
tt_face_build_cmaps( face ); /* ignore errors */
/* set the encoding fields */
{
2002-03-26 03:38:39 +01:00
FT_Int m;
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for ( m = 0; m < root->num_charmaps; m++ )
{
2002-03-26 03:38:39 +01:00
FT_CharMap charmap = root->charmaps[m];
charmap->encoding = sfnt_find_encoding( charmap->platform_id,
charmap->encoding_id );
#if 0
if ( root->charmap == NULL &&
charmap->encoding == FT_ENCODING_UNICODE )
{
/* set 'root->charmap' to the first Unicode encoding we find */
root->charmap = charmap;
}
#endif
}
}
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#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
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if ( face->num_sbit_strikes )
{
FT_ULong n;
root->face_flags |= FT_FACE_FLAG_FIXED_SIZES;
#if 0
/* XXX: I don't know criteria whether layout is horizontal */
/* or vertical. */
if ( has_outline.... )
{
...
root->face_flags |= FT_FACE_FLAG_VERTICAL;
}
#endif
root->num_fixed_sizes = (FT_Int)face->num_sbit_strikes;
if ( FT_NEW_ARRAY( root->available_sizes, face->num_sbit_strikes ) )
goto Exit;
2000-05-28 19:15:37 +02:00
for ( n = 0 ; n < face->num_sbit_strikes ; n++ )
{
A new try to synchronize bitmap font access. include/freetype/freetype.h (FT_Bitmap_Size): `height' is now defined to return the baseline-to-baseline distance. This was already the value returned by the BDF and PCF drivers. The `width' field now gives the average width. I wasn't able to find something better. It should be taken as informative only. New fields `size', `x_ppem', and `y_ppem'. * src/pcf/pcfread.c (pcf_load_font): Updated to properly fill FT_Bitmap_Size. Do proper rounding and conversion from 72.27 to 72 points. * src/bdf/bdfdrivr.c (BDF_Face_Init): Updated to properly fill FT_Bitmap_Size. Do proper rounding and conversion from 72.27 to 72 points. * src/sfnt/sfobjs.c (sfnt_load_face): Updated to properly fill FT_Bitmap_Size. * src/winfonts/winfnt.c (FNT_Face_Init): Updated to properly fill FT_Bitmap_Size. Redesigning the FNT driver to return multiple faces, not multiple strikes. At least one font (app850.fon from WinME) contains different FNT charmaps for its subfonts. Consequently, the previous design of having multiple bitmap strikes in a single font face fails since we have only one charmap per face. * include/freetype/internal/fnttypes.h (FNT_Size_Rec): Removed. (FNT_FaceRec): Remove `num_fonts' field and replace `fonts' with `font'. * src/base/ftwinfnt.c (FT_Get_WinFNT_Header): Updated. * src/winfonts/winfnt.c (fnt_font_load): Don't set pixel_width equal to pixel_height. (fnt_face_done_fonts): Removed. (fnt_face_get_dll_fonts): Renamed to... (fnt_face_get_dll_font): This. Add second function argument to select face index. Updated to load just one subfont. (fnt_font_done, FNT_Face_Done): Updated. (FNT_Face_Init): Handle `face_index'. Updated. (FNT_Size_Set_Pixels): Simplified; similar to BDF and PCF, the bitmap width is now ignored. (FNT_Load_Glyph): Updated. Fix glyph index computation. (winfnt_driver_class): Updated.
2003-07-01 09:28:55 +02:00
FT_Bitmap_Size* bsize = root->available_sizes + n;
TT_SBit_Strike strike = face->sbit_strikes + n;
FT_UShort fupem = face->header.Units_Per_EM;
FT_Short height = (FT_Short)( face->horizontal.Ascender -
face->horizontal.Descender +
face->horizontal.Line_Gap );
A new try to synchronize bitmap font access. include/freetype/freetype.h (FT_Bitmap_Size): `height' is now defined to return the baseline-to-baseline distance. This was already the value returned by the BDF and PCF drivers. The `width' field now gives the average width. I wasn't able to find something better. It should be taken as informative only. New fields `size', `x_ppem', and `y_ppem'. * src/pcf/pcfread.c (pcf_load_font): Updated to properly fill FT_Bitmap_Size. Do proper rounding and conversion from 72.27 to 72 points. * src/bdf/bdfdrivr.c (BDF_Face_Init): Updated to properly fill FT_Bitmap_Size. Do proper rounding and conversion from 72.27 to 72 points. * src/sfnt/sfobjs.c (sfnt_load_face): Updated to properly fill FT_Bitmap_Size. * src/winfonts/winfnt.c (FNT_Face_Init): Updated to properly fill FT_Bitmap_Size. Redesigning the FNT driver to return multiple faces, not multiple strikes. At least one font (app850.fon from WinME) contains different FNT charmaps for its subfonts. Consequently, the previous design of having multiple bitmap strikes in a single font face fails since we have only one charmap per face. * include/freetype/internal/fnttypes.h (FNT_Size_Rec): Removed. (FNT_FaceRec): Remove `num_fonts' field and replace `fonts' with `font'. * src/base/ftwinfnt.c (FT_Get_WinFNT_Header): Updated. * src/winfonts/winfnt.c (fnt_font_load): Don't set pixel_width equal to pixel_height. (fnt_face_done_fonts): Removed. (fnt_face_get_dll_fonts): Renamed to... (fnt_face_get_dll_font): This. Add second function argument to select face index. Updated to load just one subfont. (fnt_font_done, FNT_Face_Done): Updated. (FNT_Face_Init): Handle `face_index'. Updated. (FNT_Size_Set_Pixels): Simplified; similar to BDF and PCF, the bitmap width is now ignored. (FNT_Load_Glyph): Updated. Fix glyph index computation. (winfnt_driver_class): Updated.
2003-07-01 09:28:55 +02:00
FT_Short avg = face->os2.xAvgCharWidth;
/* assume 72dpi */
bsize->height =
A new try to synchronize bitmap font access. include/freetype/freetype.h (FT_Bitmap_Size): `height' is now defined to return the baseline-to-baseline distance. This was already the value returned by the BDF and PCF drivers. The `width' field now gives the average width. I wasn't able to find something better. It should be taken as informative only. New fields `size', `x_ppem', and `y_ppem'. * src/pcf/pcfread.c (pcf_load_font): Updated to properly fill FT_Bitmap_Size. Do proper rounding and conversion from 72.27 to 72 points. * src/bdf/bdfdrivr.c (BDF_Face_Init): Updated to properly fill FT_Bitmap_Size. Do proper rounding and conversion from 72.27 to 72 points. * src/sfnt/sfobjs.c (sfnt_load_face): Updated to properly fill FT_Bitmap_Size. * src/winfonts/winfnt.c (FNT_Face_Init): Updated to properly fill FT_Bitmap_Size. Redesigning the FNT driver to return multiple faces, not multiple strikes. At least one font (app850.fon from WinME) contains different FNT charmaps for its subfonts. Consequently, the previous design of having multiple bitmap strikes in a single font face fails since we have only one charmap per face. * include/freetype/internal/fnttypes.h (FNT_Size_Rec): Removed. (FNT_FaceRec): Remove `num_fonts' field and replace `fonts' with `font'. * src/base/ftwinfnt.c (FT_Get_WinFNT_Header): Updated. * src/winfonts/winfnt.c (fnt_font_load): Don't set pixel_width equal to pixel_height. (fnt_face_done_fonts): Removed. (fnt_face_get_dll_fonts): Renamed to... (fnt_face_get_dll_font): This. Add second function argument to select face index. Updated to load just one subfont. (fnt_font_done, FNT_Face_Done): Updated. (FNT_Face_Init): Handle `face_index'. Updated. (FNT_Size_Set_Pixels): Simplified; similar to BDF and PCF, the bitmap width is now ignored. (FNT_Load_Glyph): Updated. Fix glyph index computation. (winfnt_driver_class): Updated.
2003-07-01 09:28:55 +02:00
(FT_Short)( ( height * strike->y_ppem + fupem/2 ) / fupem );
bsize->width =
(FT_Short)( ( avg * strike->y_ppem + fupem/2 ) / fupem );
bsize->size = strike->y_ppem << 6;
bsize->x_ppem = strike->x_ppem << 6;
bsize->y_ppem = strike->y_ppem << 6;
}
2000-05-28 19:15:37 +02:00
}
else
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
2000-05-28 19:15:37 +02:00
{
root->num_fixed_sizes = 0;
root->available_sizes = 0;
2000-05-28 19:15:37 +02:00
}
/*********************************************************************/
/* */
/* Set up metrics. */
/* */
if ( has_outline == TRUE )
2000-05-28 19:15:37 +02:00
{
/* XXX What about if outline header is missing */
A new try to synchronize bitmap font access. include/freetype/freetype.h (FT_Bitmap_Size): `height' is now defined to return the baseline-to-baseline distance. This was already the value returned by the BDF and PCF drivers. The `width' field now gives the average width. I wasn't able to find something better. It should be taken as informative only. New fields `size', `x_ppem', and `y_ppem'. * src/pcf/pcfread.c (pcf_load_font): Updated to properly fill FT_Bitmap_Size. Do proper rounding and conversion from 72.27 to 72 points. * src/bdf/bdfdrivr.c (BDF_Face_Init): Updated to properly fill FT_Bitmap_Size. Do proper rounding and conversion from 72.27 to 72 points. * src/sfnt/sfobjs.c (sfnt_load_face): Updated to properly fill FT_Bitmap_Size. * src/winfonts/winfnt.c (FNT_Face_Init): Updated to properly fill FT_Bitmap_Size. Redesigning the FNT driver to return multiple faces, not multiple strikes. At least one font (app850.fon from WinME) contains different FNT charmaps for its subfonts. Consequently, the previous design of having multiple bitmap strikes in a single font face fails since we have only one charmap per face. * include/freetype/internal/fnttypes.h (FNT_Size_Rec): Removed. (FNT_FaceRec): Remove `num_fonts' field and replace `fonts' with `font'. * src/base/ftwinfnt.c (FT_Get_WinFNT_Header): Updated. * src/winfonts/winfnt.c (fnt_font_load): Don't set pixel_width equal to pixel_height. (fnt_face_done_fonts): Removed. (fnt_face_get_dll_fonts): Renamed to... (fnt_face_get_dll_font): This. Add second function argument to select face index. Updated to load just one subfont. (fnt_font_done, FNT_Face_Done): Updated. (FNT_Face_Init): Handle `face_index'. Updated. (FNT_Size_Set_Pixels): Simplified; similar to BDF and PCF, the bitmap width is now ignored. (FNT_Load_Glyph): Updated. Fix glyph index computation. (winfnt_driver_class): Updated.
2003-07-01 09:28:55 +02:00
/* (e.g. sfnt wrapped bitmap)? */
root->bbox.xMin = face->header.xMin;
root->bbox.yMin = face->header.yMin;
root->bbox.xMax = face->header.xMax;
root->bbox.yMax = face->header.yMax;
root->units_per_EM = face->header.Units_Per_EM;
2000-08-29 20:37:25 +02:00
/* XXX: Computing the ascender/descender/height is very different */
/* from what the specification tells you. Apparently, we */
/* must be careful because */
/* */
/* - not all fonts have an OS/2 table; in this case, we take */
/* the values in the horizontal header. However, these */
/* values very often are not reliable. */
/* */
/* - otherwise, the correct typographic values are in the */
/* sTypoAscender, sTypoDescender & sTypoLineGap fields. */
/* */
/* However, certains fonts have these fields set to 0. */
/* Rather, they have usWinAscent & usWinDescent correctly */
/* set (but with different values). */
/* */
/* As an example, Arial Narrow is implemented through four */
/* files ARIALN.TTF, ARIALNI.TTF, ARIALNB.TTF & ARIALNBI.TTF */
/* */
/* Strangely, all fonts have the same values in their */
/* sTypoXXX fields, except ARIALNB which sets them to 0. */
/* */
/* On the other hand, they all have different */
/* usWinAscent/Descent values -- as a conclusion, the OS/2 */
/* table cannot be used to compute the text height reliably! */
/* */
/* The ascender/descender/height are computed from the OS/2 table */
/* when found. Otherwise, they're taken from the horizontal */
/* header. */
/* */
root->ascender = face->horizontal.Ascender;
root->descender = face->horizontal.Descender;
2000-10-31 21:42:18 +01:00
root->height = (FT_Short)( root->ascender - root->descender +
face->horizontal.Line_Gap );
2000-10-31 21:42:18 +01:00
#if 0
2000-08-29 20:37:25 +02:00
/* if the line_gap is 0, we add an extra 15% to the text height -- */
/* this computation is based on various versions of Times New Roman */
2000-08-29 20:37:25 +02:00
if ( face->horizontal.Line_Gap == 0 )
2001-06-20 01:03:41 +02:00
root->height = (FT_Short)( ( root->height * 115 + 50 ) / 100 );
#endif
2000-10-31 21:42:18 +01:00
#if 0
2000-08-29 20:37:25 +02:00
/* some fonts have the OS/2 "sTypoAscender", "sTypoDescender" & */
/* "sTypoLineGap" fields set to 0, like ARIALNB.TTF */
if ( face->os2.version != 0xFFFFU && root->ascender )
{
FT_Int height;
2000-10-31 21:42:18 +01:00
2000-08-29 20:37:25 +02:00
root->ascender = face->os2.sTypoAscender;
root->descender = -face->os2.sTypoDescender;
2000-10-31 21:42:18 +01:00
height = root->ascender + root->descender + face->os2.sTypoLineGap;
2000-08-29 20:37:25 +02:00
if ( height > root->height )
root->height = height;
}
2000-08-29 20:37:25 +02:00
#endif /* 0 */
root->max_advance_width = face->horizontal.advance_Width_Max;
2000-05-28 19:15:37 +02:00
root->max_advance_height = (FT_Short)( face->vertical_info
? face->vertical.advance_Height_Max
: root->height );
2000-05-28 19:15:37 +02:00
root->underline_position = face->postscript.underlinePosition;
root->underline_thickness = face->postscript.underlineThickness;
2000-05-28 19:15:37 +02:00
2000-08-29 20:37:25 +02:00
/* root->max_points -- already set up */
/* root->max_contours -- already set up */
}
2000-05-28 19:15:37 +02:00
}
Exit:
return error;
}
#undef LOAD_
FT_LOCAL_DEF( void )
sfnt_done_face( TT_Face face )
2000-05-28 19:15:37 +02:00
{
FT_Memory memory = face->root.memory;
SFNT_Service sfnt = (SFNT_Service)face->sfnt;
2000-05-28 19:15:37 +02:00
if ( sfnt )
2000-05-28 19:15:37 +02:00
{
/* destroy the postscript names table if it is loaded */
if ( sfnt->free_psnames )
2000-05-28 19:15:37 +02:00
sfnt->free_psnames( face );
/* destroy the embedded bitmaps table if it is loaded */
if ( sfnt->free_sbits )
2000-05-28 19:15:37 +02:00
sfnt->free_sbits( face );
}
/* freeing the kerning table */
FT_FREE( face->kern_pairs );
2000-05-28 19:15:37 +02:00
face->num_kern_pairs = 0;
/* freeing the collection table */
FT_FREE( face->ttc_header.offsets );
2000-07-19 08:25:56 +02:00
face->ttc_header.count = 0;
2000-05-28 19:15:37 +02:00
/* freeing table directory */
FT_FREE( face->dir_tables );
2000-05-28 19:15:37 +02:00
face->num_tables = 0;
{
FT_Stream stream = FT_FACE_STREAM( face );
/* simply release the 'cmap' table frame */
FT_FRAME_RELEASE( face->cmap_table );
face->cmap_size = 0;
}
2000-05-28 19:15:37 +02:00
/* freeing the horizontal metrics */
FT_FREE( face->horizontal.long_metrics );
FT_FREE( face->horizontal.short_metrics );
2000-05-28 19:15:37 +02:00
/* freeing the vertical ones, if any */
if ( face->vertical_info )
{
FT_FREE( face->vertical.long_metrics );
FT_FREE( face->vertical.short_metrics );
2000-05-28 19:15:37 +02:00
face->vertical_info = 0;
}
/* freeing the gasp table */
FT_FREE( face->gasp.gaspRanges );
2000-05-28 19:15:37 +02:00
face->gasp.numRanges = 0;
/* freeing the name table */
sfnt->free_names( face );
/* freeing the hdmx table */
sfnt->free_hdmx( face );
/* freeing family and style name */
FT_FREE( face->root.family_name );
FT_FREE( face->root.style_name );
2000-05-28 19:15:37 +02:00
/* freeing sbit size table */
face->root.num_fixed_sizes = 0;
if ( face->root.available_sizes )
FT_FREE( face->root.available_sizes );
2000-05-28 19:15:37 +02:00
face->sfnt = 0;
}
/* END */