| Index: core/src/fxge/fx_freetype/fxft2.5.01/src/sfnt/sfobjs.c
|
| diff --git a/core/src/fxge/fx_freetype/fxft2.5.01/src/sfnt/sfobjs.c b/core/src/fxge/fx_freetype/fxft2.5.01/src/sfnt/sfobjs.c
|
| deleted file mode 100644
|
| index 2d5a388ca80bf6bd6ff0f0fc61823c14555e350c..0000000000000000000000000000000000000000
|
| --- a/core/src/fxge/fx_freetype/fxft2.5.01/src/sfnt/sfobjs.c
|
| +++ /dev/null
|
| @@ -1,1165 +0,0 @@
|
| -/***************************************************************************/
|
| -/* */
|
| -/* sfobjs.c */
|
| -/* */
|
| -/* SFNT object management (base). */
|
| -/* */
|
| -/* Copyright 1996-2008, 2010-2013 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. */
|
| -/* */
|
| -/***************************************************************************/
|
| -
|
| -
|
| -#include "../../include/ft2build.h"
|
| -#include "sfobjs.h"
|
| -#include "ttload.h"
|
| -#include "ttcmap.h"
|
| -#include "ttkern.h"
|
| -#include "../../include/freetype/internal/sfnt.h"
|
| -#include "../../include/freetype/internal/ftdebug.h"
|
| -#include "../../include/freetype/ttnameid.h"
|
| -#include "../../include/freetype/tttags.h"
|
| -#include "../../include/freetype/internal/services/svpscmap.h"
|
| -#include "../../include/freetype/ftsnames.h"
|
| -#include "sferrors.h"
|
| -
|
| -#ifdef TT_CONFIG_OPTION_BDF
|
| -#include "ttbdf.h"
|
| -#endif
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* 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 = NULL;
|
| - FT_UInt len, code, n;
|
| - FT_Byte* read = (FT_Byte*)entry->string;
|
| - FT_Error error;
|
| -
|
| -
|
| - len = (FT_UInt)entry->stringLength / 2;
|
| -
|
| - if ( FT_NEW_ARRAY( string, len + 1 ) )
|
| - return NULL;
|
| -
|
| - for ( n = 0; n < len; n++ )
|
| - {
|
| - code = FT_NEXT_USHORT( read );
|
| -
|
| - if ( code == 0 )
|
| - break;
|
| -
|
| - if (code > 255) /*Johnson 2010-10-09, #TESTDOC:0000042_QUT20005_5.pdf.*/
|
| - code = code>>8&0x00ff;
|
| - if ( code < 32 || code > 127 )
|
| - code = '?';
|
| -
|
| - string[n] = (char)code;
|
| - }
|
| -
|
| - string[n] = 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 = NULL;
|
| - FT_UInt len, code, n;
|
| - FT_Byte* read = (FT_Byte*)entry->string;
|
| - FT_Error error;
|
| -
|
| -
|
| - len = (FT_UInt)entry->stringLength;
|
| -
|
| - if ( FT_NEW_ARRAY( string, len + 1 ) )
|
| - return NULL;
|
| -
|
| - for ( n = 0; n < len; n++ )
|
| - {
|
| - code = *read++;
|
| -
|
| - if ( code == 0 )
|
| - break;
|
| -
|
| - if ( code < 32 || code > 127 )
|
| - code = '?';
|
| -
|
| - string[n] = (char)code;
|
| - }
|
| -
|
| - string[n] = 0;
|
| -
|
| - return string;
|
| - }
|
| -
|
| -
|
| - typedef FT_String* (*TT_NameEntry_ConvertFunc)( TT_NameEntry entry,
|
| - FT_Memory memory );
|
| -
|
| -
|
| - /*************************************************************************/
|
| - /* */
|
| - /* <Function> */
|
| - /* tt_face_get_name */
|
| - /* */
|
| - /* <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. */
|
| - /* */
|
| - /* <InOut> */
|
| - /* name :: The address of a string pointer. NULL if no name is */
|
| - /* present. */
|
| - /* */
|
| - /* <Return> */
|
| - /* FreeType error code. 0 means success. */
|
| - /* */
|
| - static FT_Error
|
| - tt_face_get_name( TT_Face face,
|
| - FT_UShort nameid,
|
| - FT_String** name )
|
| - {
|
| - FT_Memory memory = face->root.memory;
|
| - FT_Error error = FT_Err_Ok;
|
| - FT_String* result = NULL;
|
| - FT_UShort n;
|
| - TT_NameEntryRec* rec;
|
| - FT_Int found_apple = -1;
|
| - FT_Int found_apple_roman = -1;
|
| - FT_Int found_apple_english = -1;
|
| - FT_Int found_win = -1;
|
| - FT_Int found_unicode = -1;
|
| -
|
| - FT_Bool is_english = 0;
|
| -
|
| - TT_NameEntry_ConvertFunc convert;
|
| -
|
| -
|
| - FT_ASSERT( name );
|
| -
|
| - rec = face->name_table.names;
|
| - for ( n = 0; n < face->num_names; n++, rec++ )
|
| - {
|
| - /* 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 )
|
| - {
|
| - switch ( rec->platformID )
|
| - {
|
| - 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:
|
| - /* This is a bit special because some fonts will use either */
|
| - /* an English language id, or a Roman encoding id, to indicate */
|
| - /* the English version of its font name. */
|
| - /* */
|
| - if ( rec->languageID == TT_MAC_LANGID_ENGLISH )
|
| - found_apple_english = n;
|
| - else if ( rec->encodingID == TT_MAC_ID_ROMAN )
|
| - found_apple_roman = 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:
|
| - is_english = FT_BOOL( ( rec->languageID & 0x3FF ) == 0x009 );
|
| - found_win = n;
|
| - break;
|
| -
|
| - default:
|
| - ;
|
| - }
|
| - }
|
| - break;
|
| -
|
| - default:
|
| - ;
|
| - }
|
| - }
|
| - }
|
| -
|
| - found_apple = found_apple_roman;
|
| - if ( found_apple_english >= 0 )
|
| - found_apple = found_apple_english;
|
| -
|
| - /* some fonts contain invalid Unicode or Macintosh formatted entries; */
|
| - /* we will thus favor names encoded in Windows formats if available */
|
| - /* (provided it is an English name) */
|
| - /* */
|
| - convert = NULL;
|
| - if ( found_win >= 0 && !( found_apple >= 0 && !is_english ) )
|
| - {
|
| - rec = face->name_table.names + found_win;
|
| - switch ( rec->encodingID )
|
| - {
|
| - /* all Unicode strings are encoded using UTF-16BE */
|
| - 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:
|
| - /* Apparently, if this value is found in a name table entry, it is */
|
| - /* documented as `full Unicode repertoire'. Experience with the */
|
| - /* MsGothic font shipped with Windows Vista shows that this really */
|
| - /* means UTF-16 encoded names (UCS-4 values are only used within */
|
| - /* charmaps). */
|
| - convert = tt_name_entry_ascii_from_utf16;
|
| - break;
|
| -
|
| - default:
|
| - ;
|
| - }
|
| - }
|
| - 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 )
|
| - {
|
| - FT_Stream stream = face->name_table.stream;
|
| -
|
| -
|
| - if ( FT_QNEW_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:
|
| - *name = result;
|
| - return error;
|
| - }
|
| -
|
| -
|
| - static FT_Encoding
|
| - sfnt_find_encoding( int platform_id,
|
| - int encoding_id )
|
| - {
|
| - typedef struct TEncoding_
|
| - {
|
| - int platform_id;
|
| - int encoding_id;
|
| - FT_Encoding encoding;
|
| -
|
| - } TEncoding;
|
| -
|
| - static
|
| - const TEncoding tt_encodings[] =
|
| - {
|
| - { TT_PLATFORM_ISO, -1, FT_ENCODING_UNICODE },
|
| -
|
| - { TT_PLATFORM_APPLE_UNICODE, -1, FT_ENCODING_UNICODE },
|
| -
|
| - { TT_PLATFORM_MACINTOSH, TT_MAC_ID_ROMAN, FT_ENCODING_APPLE_ROMAN },
|
| -
|
| - { 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 }
|
| - };
|
| -
|
| - const TEncoding *cur, *limit;
|
| -
|
| -
|
| - cur = tt_encodings;
|
| - limit = cur + sizeof ( tt_encodings ) / sizeof ( tt_encodings[0] );
|
| -
|
| - for ( ; cur < limit; cur++ )
|
| - {
|
| - if ( cur->platform_id == platform_id )
|
| - {
|
| - if ( cur->encoding_id == encoding_id ||
|
| - cur->encoding_id == -1 )
|
| - return cur->encoding;
|
| - }
|
| - }
|
| -
|
| - return FT_ENCODING_NONE;
|
| - }
|
| -
|
| -
|
| - /* Fill in face->ttc_header. If the font is not a TTC, it is */
|
| - /* synthesized into a TTC with one offset table. */
|
| - static FT_Error
|
| - sfnt_open_font( FT_Stream stream,
|
| - TT_Face face )
|
| - {
|
| - FT_Memory memory = stream->memory;
|
| - FT_Error error;
|
| - FT_ULong tag, offset;
|
| -
|
| - static const FT_Frame_Field ttc_header_fields[] =
|
| - {
|
| -#undef FT_STRUCTURE
|
| -#define FT_STRUCTURE TTC_HeaderRec
|
| -
|
| - FT_FRAME_START( 8 ),
|
| - FT_FRAME_LONG( version ),
|
| - FT_FRAME_LONG( count ), /* this is ULong in the specs */
|
| - FT_FRAME_END
|
| - };
|
| -
|
| -
|
| - face->ttc_header.tag = 0;
|
| - face->ttc_header.version = 0;
|
| - face->ttc_header.count = 0;
|
| -
|
| - offset = FT_STREAM_POS();
|
| -
|
| - if ( FT_READ_ULONG( tag ) )
|
| - return error;
|
| -
|
| - if ( tag != 0x00010000UL &&
|
| - tag != TTAG_ttcf &&
|
| - tag != TTAG_OTTO &&
|
| - tag != TTAG_true &&
|
| - tag != TTAG_typ1 &&
|
| - tag != 0x00020000UL )
|
| - {
|
| - FT_TRACE2(( " not a font using the SFNT container format\n" ));
|
| - return FT_THROW( Unknown_File_Format );
|
| - }
|
| -
|
| - face->ttc_header.tag = TTAG_ttcf;
|
| -
|
| - if ( tag == TTAG_ttcf )
|
| - {
|
| - FT_Int n;
|
| -
|
| -
|
| - FT_TRACE3(( "sfnt_open_font: file is a collection\n" ));
|
| -
|
| - if ( FT_STREAM_READ_FIELDS( ttc_header_fields, &face->ttc_header ) )
|
| - return error;
|
| -
|
| - if ( face->ttc_header.count == 0 )
|
| - return FT_THROW( Invalid_Table );
|
| -
|
| - /* a rough size estimate: let's conservatively assume that there */
|
| - /* is just a single table info in each subfont header (12 + 16*1 = */
|
| - /* 28 bytes), thus we have (at least) `12 + 4*count' bytes for the */
|
| - /* size of the TTC header plus `28*count' bytes for all subfont */
|
| - /* headers */
|
| - if ( (FT_ULong)face->ttc_header.count > stream->size / ( 28 + 4 ) )
|
| - return FT_THROW( Array_Too_Large );
|
| -
|
| - /* now read the offsets of each font in the file */
|
| - if ( FT_NEW_ARRAY( face->ttc_header.offsets, face->ttc_header.count ) )
|
| - return error;
|
| -
|
| - if ( FT_FRAME_ENTER( face->ttc_header.count * 4L ) )
|
| - return error;
|
| -
|
| - for ( n = 0; n < face->ttc_header.count; n++ )
|
| - face->ttc_header.offsets[n] = FT_GET_ULONG();
|
| -
|
| - FT_FRAME_EXIT();
|
| - }
|
| - else
|
| - {
|
| - FT_TRACE3(( "sfnt_open_font: synthesize TTC\n" ));
|
| -
|
| - face->ttc_header.version = 1 << 16;
|
| - face->ttc_header.count = 1;
|
| -
|
| - if ( FT_NEW( face->ttc_header.offsets ) )
|
| - return error;
|
| -
|
| - face->ttc_header.offsets[0] = offset;
|
| - }
|
| -
|
| - return error;
|
| - }
|
| -
|
| -
|
| - FT_LOCAL_DEF( FT_Error )
|
| - sfnt_init_face( FT_Stream stream,
|
| - TT_Face face,
|
| - FT_Int face_index,
|
| - FT_Int num_params,
|
| - FT_Parameter* params )
|
| - {
|
| - FT_Error error;
|
| - FT_Library library = face->root.driver->root.library;
|
| - SFNT_Service sfnt;
|
| -
|
| -
|
| - /* for now, parameters are unused */
|
| - FT_UNUSED( num_params );
|
| - FT_UNUSED( params );
|
| -
|
| -
|
| - sfnt = (SFNT_Service)face->sfnt;
|
| - if ( !sfnt )
|
| - {
|
| - sfnt = (SFNT_Service)FT_Get_Module_Interface( library, "sfnt" );
|
| - if ( !sfnt )
|
| - {
|
| - FT_ERROR(( "sfnt_init_face: cannot access `sfnt' module\n" ));
|
| - return FT_THROW( Missing_Module );
|
| - }
|
| -
|
| - face->sfnt = sfnt;
|
| - face->goto_table = sfnt->goto_table;
|
| - }
|
| -
|
| - FT_FACE_FIND_GLOBAL_SERVICE( face, face->psnames, POSTSCRIPT_CMAPS );
|
| -
|
| - FT_TRACE2(( "SFNT driver\n" ));
|
| -
|
| - error = sfnt_open_font( stream, face );
|
| - if ( error )
|
| - return error;
|
| -
|
| - FT_TRACE2(( "sfnt_init_face: %08p, %ld\n", face, face_index ));
|
| -
|
| - if ( face_index < 0 )
|
| - face_index = 0;
|
| -
|
| - if ( face_index >= face->ttc_header.count )
|
| - return FT_THROW( Invalid_Argument );
|
| -
|
| - if ( FT_STREAM_SEEK( face->ttc_header.offsets[face_index] ) )
|
| - return error;
|
| -
|
| - /* check that we have a valid TrueType file */
|
| - error = sfnt->load_font_dir( face, stream );
|
| - if ( error )
|
| - return error;
|
| -
|
| - face->root.num_faces = face->ttc_header.count;
|
| - face->root.face_index = face_index;
|
| -
|
| - return error;
|
| - }
|
| -
|
| -
|
| -#define LOAD_( x ) \
|
| - do { \
|
| - FT_TRACE2(( "`" #x "' " )); \
|
| - FT_TRACE3(( "-->\n" )); \
|
| - \
|
| - error = sfnt->load_ ## x( face, stream ); \
|
| - \
|
| - FT_TRACE2(( "%s\n", ( !error ) \
|
| - ? "loaded" \
|
| - : FT_ERR_EQ( error, Table_Missing ) \
|
| - ? "missing" \
|
| - : "failed to load" )); \
|
| - FT_TRACE3(( "\n" )); \
|
| - } while ( 0 )
|
| -
|
| -#define LOADM_( x, vertical ) \
|
| - do { \
|
| - FT_TRACE2(( "`%s" #x "' ", \
|
| - vertical ? "vertical " : "" )); \
|
| - FT_TRACE3(( "-->\n" )); \
|
| - \
|
| - error = sfnt->load_ ## x( face, stream, vertical ); \
|
| - \
|
| - FT_TRACE2(( "%s\n", ( !error ) \
|
| - ? "loaded" \
|
| - : FT_ERR_EQ( error, Table_Missing ) \
|
| - ? "missing" \
|
| - : "failed to load" )); \
|
| - FT_TRACE3(( "\n" )); \
|
| - } while ( 0 )
|
| -
|
| -#define GET_NAME( id, field ) \
|
| - do { \
|
| - error = tt_face_get_name( face, TT_NAME_ID_ ## id, field ); \
|
| - if ( error ) \
|
| - goto Exit; \
|
| - } while ( 0 )
|
| -
|
| -
|
| - FT_LOCAL_DEF( FT_Error )
|
| - sfnt_load_face( FT_Stream stream,
|
| - TT_Face face,
|
| - FT_Int face_index,
|
| - FT_Int num_params,
|
| - FT_Parameter* params )
|
| - {
|
| - FT_Error error;
|
| -#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
|
| - FT_Error psnames_error;
|
| -#endif
|
| - FT_Bool has_outline;
|
| - FT_Bool is_apple_sbit;
|
| - FT_Bool ignore_preferred_family = FALSE;
|
| - FT_Bool ignore_preferred_subfamily = FALSE;
|
| -
|
| - SFNT_Service sfnt = (SFNT_Service)face->sfnt;
|
| -
|
| - FT_UNUSED( face_index );
|
| -
|
| -
|
| - /* Check parameters */
|
| -
|
| - {
|
| - FT_Int i;
|
| -
|
| -
|
| - for ( i = 0; i < num_params; i++ )
|
| - {
|
| - if ( params[i].tag == FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY )
|
| - ignore_preferred_family = TRUE;
|
| - else if ( params[i].tag == FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY )
|
| - ignore_preferred_subfamily = TRUE;
|
| - }
|
| - }
|
| -
|
| - /* 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. */
|
| - /* */
|
| -
|
| - FT_TRACE2(( "sfnt_load_face: %08p\n\n", face ));
|
| -
|
| - /* 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;
|
| -
|
| - /* if this font doesn't contain outlines, we try to load */
|
| - /* a `bhed' table */
|
| - if ( !has_outline && sfnt->load_bhed )
|
| - {
|
| - LOAD_( bhed );
|
| - is_apple_sbit = FT_BOOL( !error );
|
| - }
|
| -
|
| - /* load the font header (`head' table) if this isn't an Apple */
|
| - /* sbit font file */
|
| - if ( !is_apple_sbit )
|
| - {
|
| - LOAD_( head );
|
| - if ( error )
|
| - goto Exit;
|
| - }
|
| -
|
| - if ( face->header.Units_Per_EM == 0 )
|
| - {
|
| - error = FT_THROW( Invalid_Table );
|
| -
|
| - goto Exit;
|
| - }
|
| -
|
| - /* the following tables are often not present in embedded TrueType */
|
| - /* fonts within PDF documents, so don't check for them. */
|
| - LOAD_( maxp );
|
| - LOAD_( cmap );
|
| -
|
| - /* the following tables are optional in PCL fonts -- */
|
| - /* don't check for errors */
|
| - LOAD_( name );
|
| - LOAD_( post );
|
| -
|
| -#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
|
| - psnames_error = error;
|
| -#endif
|
| -
|
| - /* 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 */
|
| - LOADM_( hhea, 0 );
|
| - if ( !error )
|
| - {
|
| - LOADM_( hmtx, 0 );
|
| - if ( FT_ERR_EQ( error, Table_Missing ) )
|
| - {
|
| - error = FT_THROW( Hmtx_Table_Missing );
|
| -
|
| -#ifdef FT_CONFIG_OPTION_INCREMENTAL
|
| - /* If this is an incrementally loaded font and there are */
|
| - /* overriding metrics, tolerate a missing `hmtx' table. */
|
| - if ( face->root.internal->incremental_interface &&
|
| - face->root.internal->incremental_interface->funcs->
|
| - get_glyph_metrics )
|
| - {
|
| - face->horizontal.number_Of_HMetrics = 0;
|
| - error = FT_Err_Ok;
|
| - }
|
| -#endif
|
| - }
|
| - }
|
| - else if ( FT_ERR_EQ( error, Table_Missing ) )
|
| - {
|
| - /* No `hhea' table necessary for SFNT Mac fonts. */
|
| - if ( face->format_tag == TTAG_true )
|
| - {
|
| - FT_TRACE2(( "This is an SFNT Mac font.\n" ));
|
| -
|
| - has_outline = 0;
|
| - error = FT_Err_Ok;
|
| - }
|
| - else
|
| - {
|
| - error = FT_THROW( Horiz_Header_Missing );
|
| -
|
| -#ifdef FT_CONFIG_OPTION_INCREMENTAL
|
| - /* If this is an incrementally loaded font and there are */
|
| - /* overriding metrics, tolerate a missing `hhea' table. */
|
| - if ( face->root.internal->incremental_interface &&
|
| - face->root.internal->incremental_interface->funcs->
|
| - get_glyph_metrics )
|
| - {
|
| - face->horizontal.number_Of_HMetrics = 0;
|
| - error = FT_Err_Ok;
|
| - }
|
| -#endif
|
| -
|
| - }
|
| - }
|
| -
|
| - if ( error )
|
| - goto Exit;
|
| -
|
| - /* try to load the `vhea' and `vmtx' tables */
|
| - LOADM_( hhea, 1 );
|
| - if ( !error )
|
| - {
|
| - LOADM_( hmtx, 1 );
|
| - if ( !error )
|
| - face->vertical_info = 1;
|
| - }
|
| -
|
| - if ( error && FT_ERR_NEQ( error, Table_Missing ) )
|
| - goto Exit;
|
| -
|
| - LOAD_( os2 );
|
| - if ( error )
|
| - {
|
| - /* we treat the table as missing if there are any errors */
|
| - face->os2.version = 0xFFFFU;
|
| - }
|
| - }
|
| -
|
| - /* the optional tables */
|
| -
|
| - /* embedded bitmap support */
|
| - if ( sfnt->load_eblc )
|
| - {
|
| - LOAD_( eblc );
|
| - if ( error )
|
| - {
|
| - /* a font which contains neither bitmaps nor outlines is */
|
| - /* still valid (although rather useless in most cases); */
|
| - /* however, you can find such stripped fonts in PDFs */
|
| - if ( FT_ERR_EQ( error, Table_Missing ) )
|
| - error = FT_Err_Ok;
|
| - else
|
| - goto Exit;
|
| - }
|
| - }
|
| -
|
| - LOAD_( pclt );
|
| - if ( error )
|
| - {
|
| - if ( FT_ERR_NEQ( error, Table_Missing ) )
|
| - goto Exit;
|
| -
|
| - face->pclt.Version = 0;
|
| - }
|
| -
|
| - /* consider the kerning and gasp tables as optional */
|
| - LOAD_( gasp );
|
| - LOAD_( kern );
|
| -
|
| - face->root.num_glyphs = face->max_profile.numGlyphs;
|
| -
|
| - /* Bit 8 of the `fsSelection' field in the `OS/2' table denotes */
|
| - /* a WWS-only font face. `WWS' stands for `weight', width', and */
|
| - /* `slope', a term used by Microsoft's Windows Presentation */
|
| - /* Foundation (WPF). This flag has been introduced in version */
|
| - /* 1.5 of the OpenType specification (May 2008). */
|
| -
|
| - face->root.family_name = NULL;
|
| - face->root.style_name = NULL;
|
| - if ( face->os2.version != 0xFFFFU && face->os2.fsSelection & 256 )
|
| - {
|
| - if ( !ignore_preferred_family )
|
| - GET_NAME( PREFERRED_FAMILY, &face->root.family_name );
|
| - if ( !face->root.family_name )
|
| - GET_NAME( FONT_FAMILY, &face->root.family_name );
|
| -
|
| - if ( !ignore_preferred_subfamily )
|
| - GET_NAME( PREFERRED_SUBFAMILY, &face->root.style_name );
|
| - if ( !face->root.style_name )
|
| - GET_NAME( FONT_SUBFAMILY, &face->root.style_name );
|
| - }
|
| - else
|
| - {
|
| - GET_NAME( WWS_FAMILY, &face->root.family_name );
|
| - if ( !face->root.family_name && !ignore_preferred_family )
|
| - GET_NAME( PREFERRED_FAMILY, &face->root.family_name );
|
| - if ( !face->root.family_name )
|
| - GET_NAME( FONT_FAMILY, &face->root.family_name );
|
| -
|
| - GET_NAME( WWS_SUBFAMILY, &face->root.style_name );
|
| - if ( !face->root.style_name && !ignore_preferred_subfamily )
|
| - GET_NAME( PREFERRED_SUBFAMILY, &face->root.style_name );
|
| - if ( !face->root.style_name )
|
| - GET_NAME( FONT_SUBFAMILY, &face->root.style_name );
|
| - }
|
| -
|
| - /* now set up root fields */
|
| - {
|
| - FT_Face root = &face->root;
|
| - FT_Long flags = root->face_flags;
|
| -
|
| -
|
| - /*********************************************************************/
|
| - /* */
|
| - /* Compute face flags. */
|
| - /* */
|
| - if ( has_outline == TRUE )
|
| - flags |= FT_FACE_FLAG_SCALABLE; /* scalable outlines */
|
| -
|
| - /* The sfnt driver only supports bitmap fonts natively, thus we */
|
| - /* don't set FT_FACE_FLAG_HINTER. */
|
| - flags |= FT_FACE_FLAG_SFNT | /* SFNT file format */
|
| - FT_FACE_FLAG_HORIZONTAL; /* horizontal data */
|
| -
|
| -#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
|
| - if ( !psnames_error &&
|
| - face->postscript.FormatType != 0x00030000L )
|
| - flags |= FT_FACE_FLAG_GLYPH_NAMES;
|
| -#endif
|
| -
|
| - /* fixed width font? */
|
| - if ( face->postscript.isFixedPitch )
|
| - flags |= FT_FACE_FLAG_FIXED_WIDTH;
|
| -
|
| - /* vertical information? */
|
| - if ( face->vertical_info )
|
| - flags |= FT_FACE_FLAG_VERTICAL;
|
| -
|
| - /* kerning available ? */
|
| - if ( TT_FACE_HAS_KERNING( face ) )
|
| - flags |= FT_FACE_FLAG_KERNING;
|
| -
|
| -#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
|
| - /* Don't bother to load the tables unless somebody asks for them. */
|
| - /* No need to do work which will (probably) not be used. */
|
| - if ( tt_face_lookup_table( face, TTAG_glyf ) != 0 &&
|
| - tt_face_lookup_table( face, TTAG_fvar ) != 0 &&
|
| - tt_face_lookup_table( face, TTAG_gvar ) != 0 )
|
| - flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;
|
| -#endif
|
| -
|
| - root->face_flags = flags;
|
| -
|
| - /*********************************************************************/
|
| - /* */
|
| - /* Compute style flags. */
|
| - /* */
|
| -
|
| - flags = 0;
|
| - if ( has_outline == TRUE && face->os2.version != 0xFFFFU )
|
| - {
|
| - /* We have an OS/2 table; use the `fsSelection' field. Bit 9 */
|
| - /* indicates an oblique font face. This flag has been */
|
| - /* introduced in version 1.5 of the OpenType specification. */
|
| -
|
| - if ( face->os2.fsSelection & 512 ) /* bit 9 */
|
| - flags |= FT_STYLE_FLAG_ITALIC;
|
| - else if ( face->os2.fsSelection & 1 ) /* bit 0 */
|
| - flags |= FT_STYLE_FLAG_ITALIC;
|
| -
|
| - if ( face->os2.fsSelection & 32 ) /* bit 5 */
|
| - 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;
|
| -
|
| - if ( face->header.Mac_Style & 2 )
|
| - flags |= FT_STYLE_FLAG_ITALIC;
|
| - }
|
| -
|
| - root->style_flags = flags;
|
| -
|
| - /*********************************************************************/
|
| - /* */
|
| - /* 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 */
|
| - {
|
| - FT_Int m;
|
| -
|
| -
|
| - for ( m = 0; m < root->num_charmaps; m++ )
|
| - {
|
| - 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
|
| - }
|
| - }
|
| -
|
| -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
|
| -
|
| - /*
|
| - * Now allocate the root array of FT_Bitmap_Size records and
|
| - * populate them. Unfortunately, it isn't possible to indicate bit
|
| - * depths in the FT_Bitmap_Size record. This is a design error.
|
| - */
|
| - {
|
| - FT_UInt i, count;
|
| -
|
| -
|
| - count = face->sbit_num_strikes;
|
| -
|
| - if ( count > 0 )
|
| - {
|
| - FT_Memory memory = face->root.stream->memory;
|
| - FT_UShort em_size = face->header.Units_Per_EM;
|
| - FT_Short avgwidth = face->os2.xAvgCharWidth;
|
| - FT_Size_Metrics metrics;
|
| -
|
| -
|
| - if ( em_size == 0 || face->os2.version == 0xFFFFU )
|
| - {
|
| - avgwidth = 0;
|
| - em_size = 1;
|
| - }
|
| -
|
| - if ( FT_NEW_ARRAY( root->available_sizes, count ) )
|
| - goto Exit;
|
| -
|
| - for ( i = 0; i < count; i++ )
|
| - {
|
| - FT_Bitmap_Size* bsize = root->available_sizes + i;
|
| -
|
| -
|
| - error = sfnt->load_strike_metrics( face, i, &metrics );
|
| - if ( error )
|
| - goto Exit;
|
| -
|
| - bsize->height = (FT_Short)( metrics.height >> 6 );
|
| - bsize->width = (FT_Short)(
|
| - ( avgwidth * metrics.x_ppem + em_size / 2 ) / em_size );
|
| -
|
| - bsize->x_ppem = metrics.x_ppem << 6;
|
| - bsize->y_ppem = metrics.y_ppem << 6;
|
| -
|
| - /* assume 72dpi */
|
| - bsize->size = metrics.y_ppem << 6;
|
| - }
|
| -
|
| - root->face_flags |= FT_FACE_FLAG_FIXED_SIZES;
|
| - root->num_fixed_sizes = (FT_Int)count;
|
| - }
|
| - }
|
| -
|
| -#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
|
| -
|
| - /* a font with no bitmaps and no outlines is scalable; */
|
| - /* it has only empty glyphs then */
|
| - if ( !FT_HAS_FIXED_SIZES( root ) && !FT_IS_SCALABLE( root ) )
|
| - root->face_flags |= FT_FACE_FLAG_SCALABLE;
|
| -
|
| -
|
| - /*********************************************************************/
|
| - /* */
|
| - /* Set up metrics. */
|
| - /* */
|
| - if ( FT_IS_SCALABLE( root ) )
|
| - {
|
| - /* XXX What about if outline header is missing */
|
| - /* (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;
|
| -
|
| -
|
| - /* 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, certain 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 and descender are taken from the `hhea' table. */
|
| - /* If zero, they are taken from the `OS/2' table. */
|
| -
|
| - root->ascender = face->horizontal.Ascender;
|
| - root->descender = face->horizontal.Descender;
|
| -
|
| - root->height = (FT_Short)( root->ascender - root->descender +
|
| - face->horizontal.Line_Gap );
|
| -
|
| - if ( !( root->ascender || root->descender ) )
|
| - {
|
| - if ( face->os2.version != 0xFFFFU )
|
| - {
|
| - if ( face->os2.sTypoAscender || face->os2.sTypoDescender )
|
| - {
|
| - root->ascender = face->os2.sTypoAscender;
|
| - root->descender = face->os2.sTypoDescender;
|
| -
|
| - root->height = (FT_Short)( root->ascender - root->descender +
|
| - face->os2.sTypoLineGap );
|
| - }
|
| - else
|
| - {
|
| - root->ascender = (FT_Short)face->os2.usWinAscent;
|
| - root->descender = -(FT_Short)face->os2.usWinDescent;
|
| -
|
| - root->height = (FT_UShort)( root->ascender - root->descender );
|
| - }
|
| - }
|
| - }
|
| -
|
| - root->max_advance_width = face->horizontal.advance_Width_Max;
|
| - root->max_advance_height = (FT_Short)( face->vertical_info
|
| - ? face->vertical.advance_Height_Max
|
| - : root->height );
|
| -
|
| - /* See http://www.microsoft.com/OpenType/OTSpec/post.htm -- */
|
| - /* Adjust underline position from top edge to centre of */
|
| - /* stroke to convert TrueType meaning to FreeType meaning. */
|
| - root->underline_position = face->postscript.underlinePosition -
|
| - face->postscript.underlineThickness / 2;
|
| - root->underline_thickness = face->postscript.underlineThickness;
|
| - }
|
| -
|
| - }
|
| -
|
| - Exit:
|
| - FT_TRACE2(( "sfnt_load_face: done\n" ));
|
| -
|
| - return error;
|
| - }
|
| -
|
| -
|
| -#undef LOAD_
|
| -#undef LOADM_
|
| -#undef GET_NAME
|
| -
|
| -
|
| - FT_LOCAL_DEF( void )
|
| - sfnt_done_face( TT_Face face )
|
| - {
|
| - FT_Memory memory;
|
| - SFNT_Service sfnt;
|
| -
|
| -
|
| - if ( !face )
|
| - return;
|
| -
|
| - memory = face->root.memory;
|
| - sfnt = (SFNT_Service)face->sfnt;
|
| -
|
| - if ( sfnt )
|
| - {
|
| - /* destroy the postscript names table if it is loaded */
|
| - if ( sfnt->free_psnames )
|
| - sfnt->free_psnames( face );
|
| -
|
| - /* destroy the embedded bitmaps table if it is loaded */
|
| - if ( sfnt->free_eblc )
|
| - sfnt->free_eblc( face );
|
| - }
|
| -
|
| -#ifdef TT_CONFIG_OPTION_BDF
|
| - /* freeing the embedded BDF properties */
|
| - tt_face_free_bdf_props( face );
|
| -#endif
|
| -
|
| - /* freeing the kerning table */
|
| - tt_face_done_kern( face );
|
| -
|
| - /* freeing the collection table */
|
| - FT_FREE( face->ttc_header.offsets );
|
| - face->ttc_header.count = 0;
|
| -
|
| - /* freeing table directory */
|
| - FT_FREE( face->dir_tables );
|
| - 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;
|
| - }
|
| -
|
| - /* freeing the horizontal metrics */
|
| - {
|
| - FT_Stream stream = FT_FACE_STREAM( face );
|
| -
|
| -
|
| - FT_FRAME_RELEASE( face->horz_metrics );
|
| - FT_FRAME_RELEASE( face->vert_metrics );
|
| - face->horz_metrics_size = 0;
|
| - face->vert_metrics_size = 0;
|
| - }
|
| -
|
| - /* freeing the vertical ones, if any */
|
| - if ( face->vertical_info )
|
| - {
|
| - FT_FREE( face->vertical.long_metrics );
|
| - FT_FREE( face->vertical.short_metrics );
|
| - face->vertical_info = 0;
|
| - }
|
| -
|
| - /* freeing the gasp table */
|
| - FT_FREE( face->gasp.gaspRanges );
|
| - face->gasp.numRanges = 0;
|
| -
|
| - /* freeing the name table */
|
| - if ( sfnt )
|
| - sfnt->free_name( face );
|
| -
|
| - /* freeing family and style name */
|
| - FT_FREE( face->root.family_name );
|
| - FT_FREE( face->root.style_name );
|
| -
|
| - /* freeing sbit size table */
|
| - FT_FREE( face->root.available_sizes );
|
| - face->root.num_fixed_sizes = 0;
|
| -
|
| - FT_FREE( face->postscript_name );
|
| -
|
| - face->sfnt = 0;
|
| - }
|
| -
|
| -
|
| -/* END */
|
|
|
Chromium Code Reviews
Issue 815103002:
Update freetype to 2.5.4. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master