#include <ft2build.h>
#include "sfobjs.h"
#include "ttload.h"
#include "ttcmap0.h"
#include FT_INTERNAL_SFNT_H
#include FT_INTERNAL_POSTSCRIPT_NAMES_H
#include FT_TRUETYPE_IDS_H
#include FT_TRUETYPE_TAGS_H
#include "sferrors.h"
#undef FT_COMPONENT
#define FT_COMPONENT trace_sfobjs
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;
}
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;
}
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 );
static FT_String*
tt_face_get_name( TT_Face face,
FT_UShort nameid )
{
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;
TT_NameEntry_ConvertFunc convert;
rec = face->name_table.names;
for ( n = 0; n < face->num_names; n++, rec++ )
{
if ( rec->nameID == nameid && rec->stringLength > 0 )
{
switch ( rec->platformID )
{
case TT_PLATFORM_APPLE_UNICODE:
case TT_PLATFORM_ISO:
found_unicode = n;
break;
case TT_PLATFORM_MACINTOSH:
if ( rec->languageID == TT_MAC_LANGID_ENGLISH )
found_apple = n;
break;
case TT_PLATFORM_MICROSOFT:
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:
;
}
}
}
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:
;
}
}
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_Error error;
FT_Stream stream = face->name_table.stream;
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;
}
(void)error;
}
result = convert( rec, memory );
}
Exit:
return result;
}
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_MS_SJIS },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_GB2312, FT_ENCODING_MS_GB2312 },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_BIG_5, FT_ENCODING_MS_BIG5 },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_WANSUNG, FT_ENCODING_MS_WANSUNG },
{ TT_PLATFORM_MICROSOFT, TT_MS_ID_JOHAB, FT_ENCODING_MS_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;
}
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;
SFNT_HeaderRec sfnt_header;
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 )
{
error = SFNT_Err_Invalid_File_Format;
goto Exit;
}
face->sfnt = sfnt;
face->goto_table = sfnt->goto_table;
}
if ( !face->psnames )
{
face->psnames = (PSNames_Service)
FT_Get_Module_Interface( library, "psnames" );
}
error = sfnt->load_sfnt_header( face, stream, face_index, &sfnt_header );
if ( error )
goto Exit;
face->format_tag = sfnt_header.format_tag;
face->num_tables = sfnt_header.num_tables;
error = sfnt->load_directory( face, stream, &sfnt_header );
if ( error )
goto Exit;
face->root.num_faces = face->ttc_header.count;
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 ) ) \
!= SFNT_Err_Ok )
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;
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 );
#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 ( !has_outline )
is_apple_sbit = FT_BOOL( !LOAD_( bitmap_header ) );
#endif
if ( !is_apple_sbit && LOAD_( header ) )
goto Exit;
(void)LOAD_( max_profile );
(void)LOAD_( charmaps );
(void)LOAD_( names );
(void)LOAD_( psnames );
if ( !is_apple_sbit )
{
error = sfnt->load_metrics( face, stream, 0 );
if ( error )
goto Exit;
error = sfnt->load_metrics( face, stream, 1 );
if ( error )
goto Exit;
if ( LOAD_( os2 ) )
goto Exit;
}
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
if ( sfnt->load_sbits && LOAD_( sbits ) )
{
if ( error == SFNT_Err_Table_Missing && has_outline )
error = SFNT_Err_Ok;
else
goto Exit;
}
#endif
if ( LOAD_( hdmx ) ||
LOAD_( gasp ) ||
LOAD_( kerning ) ||
LOAD_( pclt ) )
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 );
{
FT_Face root = &face->root;
FT_Int32 flags = 0;
FT_Memory memory;
memory = root->memory;
if ( has_outline == TRUE )
flags = FT_FACE_FLAG_SCALABLE;
flags |= FT_FACE_FLAG_SFNT |
FT_FACE_FLAG_HORIZONTAL;
#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
flags |= FT_FACE_FLAG_GLYPH_NAMES;
#endif
if ( face->postscript.isFixedPitch )
flags |= FT_FACE_FLAG_FIXED_WIDTH;
if ( face->vertical_info )
flags |= FT_FACE_FLAG_VERTICAL;
if ( face->kern_pairs )
flags |= FT_FACE_FLAG_KERNING;
root->face_flags = flags;
flags = 0;
if ( has_outline == TRUE && face->os2.version != 0xFFFF )
{
if ( face->os2.fsSelection & 1 )
flags |= FT_STYLE_FLAG_ITALIC;
if ( face->os2.fsSelection & 32 )
flags |= FT_STYLE_FLAG_BOLD;
}
else
{
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;
tt_face_build_cmaps( face );
{
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 )
{
root->charmap = charmap;
}
#endif
}
}
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
if ( face->num_sbit_strikes )
{
FT_ULong n;
root->face_flags |= FT_FACE_FLAG_FIXED_SIZES;
#if 0
if ( has_outline.... )
{
...
root->face_flags |= FT_FACE_FLAG_VERTICAL;
}
#endif
root->num_fixed_sizes = face->num_sbit_strikes;
if ( FT_NEW_ARRAY( root->available_sizes, face->num_sbit_strikes ) )
goto Exit;
for ( n = 0 ; n < face->num_sbit_strikes ; n++ )
{
root->available_sizes[n].width =
face->sbit_strikes[n].x_ppem;
root->available_sizes[n].height =
face->sbit_strikes[n].y_ppem;
}
}
else
#endif
{
root->num_fixed_sizes = 0;
root->available_sizes = 0;
}
if ( has_outline == TRUE )
{
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;
root->ascender = face->horizontal.Ascender;
root->descender = face->horizontal.Descender;
root->height = (FT_Short)( root->ascender - root->descender +
face->horizontal.Line_Gap );
if ( face->horizontal.Line_Gap == 0 )
root->height = (FT_Short)( ( root->height * 115 + 50 ) / 100 );
#if 0
if ( face->os2.version != 0xFFFF && root->ascender )
{
FT_Int height;
root->ascender = face->os2.sTypoAscender;
root->descender = -face->os2.sTypoDescender;
height = root->ascender + root->descender + face->os2.sTypoLineGap;
if ( height > root->height )
root->height = height;
}
#endif
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 );
root->underline_position = face->postscript.underlinePosition;
root->underline_thickness = face->postscript.underlineThickness;
}
}
Exit:
return error;
}
#undef LOAD_
FT_LOCAL_DEF( void )
sfnt_done_face( TT_Face face )
{
FT_Memory memory = face->root.memory;
SFNT_Service sfnt = (SFNT_Service)face->sfnt;
if ( sfnt )
{
if ( sfnt->free_psnames )
sfnt->free_psnames( face );
if ( sfnt->free_sbits )
sfnt->free_sbits( face );
}
FT_FREE( face->kern_pairs );
face->num_kern_pairs = 0;
FT_FREE( face->ttc_header.offsets );
face->ttc_header.count = 0;
FT_FREE( face->dir_tables );
face->num_tables = 0;
{
FT_Stream stream = FT_FACE_STREAM( face );
FT_FRAME_RELEASE( face->cmap_table );
face->cmap_size = 0;
}
FT_FREE( face->horizontal.long_metrics );
FT_FREE( face->horizontal.short_metrics );
if ( face->vertical_info )
{
FT_FREE( face->vertical.long_metrics );
FT_FREE( face->vertical.short_metrics );
face->vertical_info = 0;
}
FT_FREE( face->gasp.gaspRanges );
face->gasp.numRanges = 0;
sfnt->free_names( face );
sfnt->free_hdmx( face );
FT_FREE( face->root.family_name );
FT_FREE( face->root.style_name );
face->root.num_fixed_sizes = 0;
if ( face->root.available_sizes )
FT_FREE( face->root.available_sizes );
face->sfnt = 0;
}