freetype2/src/base/ftmac.c

1442 lines
40 KiB
C
Raw Normal View History

/***************************************************************************/
/* */
/* ftmac.c */
/* */
2000-07-29 22:38:19 +02:00
/* Mac FOND support. Written by just@letterror.com. */
/* Heavily Fixed by mpsuzuki, George Williams and Sean McBride */
/* */
2006-01-11 11:57:42 +01:00
/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006 by */
/* Just van Rossum, 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. */
/* */
/***************************************************************************/
/*
Notes
Mac suitcase files can (and often do!) contain multiple fonts. To
support this I use the face_index argument of FT_(Open|New)_Face()
functions, and pretend the suitcase file is a collection.
2006-01-11 11:57:42 +01:00
Warning: fbit and NFNT bitmap resources are not supported yet. In old
sfnt fonts, bitmap glyph data for each size is stored in each `NFNT'
resources instead of the `bdat' table in the sfnt resource. Therefore,
face->num_fixed_sizes is set to 0, because bitmap data in `NFNT'
resource is unavailable at present.
The Mac FOND support works roughly like this:
2006-01-11 11:57:42 +01:00
- Check whether the offered stream points to a Mac suitcase file. This
is done by checking the file type: it has to be 'FFIL' or 'tfil'. The
stream that gets passed to our init_face() routine is a stdio stream,
which isn't usable for us, since the FOND resources live in the
resource fork. So we just grab the stream->pathname field.
- Read the FOND resource into memory, then check whether there is a
TrueType font and/or(!) a Type 1 font available.
- If there is a Type 1 font available (as a separate `LWFN' file), read
its data into memory, massage it slightly so it becomes PFB data, wrap
it into a memory stream, load the Type 1 driver and delegate the rest
of the work to it by calling FT_Open_Face(). (XXX TODO: after this
has been done, the kerning data from the FOND resource should be
appended to the face: On the Mac there are usually no AFM files
available. However, this is tricky since we need to map Mac char
codes to ps glyph names to glyph ID's...)
- If there is a TrueType font (an `sfnt' resource), read it into memory,
wrap it into a memory stream, load the TrueType driver and delegate
the rest of the work to it, by calling FT_Open_Face().
*/
2000-12-08 17:17:16 +01:00
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_INTERNAL_STREAM_H
#if defined( __GNUC__ ) || defined( __IBMC__ )
/* This is for Mac OS X. Without redefinition, OS_INLINE */
/* expands to `static inline' which doesn't survive the */
/* -ansi compilation flag of GCC. */
#undef OS_INLINE
2006-01-11 11:57:42 +01:00
#define OS_INLINE static __inline__
#include <Carbon/Carbon.h>
#else
#include <Resources.h>
#include <Fonts.h>
#include <Endian.h>
#include <Errors.h>
#include <Files.h>
#include <TextUtils.h>
#endif
#if defined( __MWERKS__ ) && !TARGET_RT_MAC_MACHO
#include <FSp_fopen.h>
#endif
#include FT_MAC_H
2006-01-11 11:57:42 +01:00
/* FSSpec functions are deprecated since Mac OS X 10.4 */
#ifndef HAVE_FSSPEC
#if TARGET_API_MAC_OS8 || TARGET_API_MAC_CARBON
2006-01-11 11:57:42 +01:00
#define HAVE_FSSPEC 1
#else
2006-01-11 11:57:42 +01:00
#define HAVE_FSSPEC 0
#endif
#endif
/* most FSRef functions were introduced since Mac OS 9 */
#ifndef HAVE_FSREF
#if TARGET_API_MAC_OSX
2006-01-11 11:57:42 +01:00
#define HAVE_FSREF 1
#else
2006-01-11 11:57:42 +01:00
#define HAVE_FSREF 0
#endif
#endif
#ifndef HFS_MAXPATHLEN
2006-01-11 11:57:42 +01:00
#define HFS_MAXPATHLEN 1024
#endif
2006-01-11 11:57:42 +01:00
/* QuickDraw is deprecated since Mac OS X 10.4 */
#ifndef HAVE_QUICKDRAW_CARBON
#if TARGET_API_MAC_OS8 || TARGET_API_MAC_CARBON
2006-01-11 11:57:42 +01:00
#define HAVE_QUICKDRAW_CARBON 1
#else
2006-01-11 11:57:42 +01:00
#define HAVE_QUICKDRAW_CARBON 0
#endif
#endif
/* AppleTypeService is available since Mac OS X */
#ifndef HAVE_ATS
#if TARGET_API_MAC_OSX
2006-01-11 11:57:42 +01:00
#define HAVE_ATS 1
#else
2006-01-11 11:57:42 +01:00
#define HAVE_ATS 0
#endif
#endif
/* Set PREFER_LWFN to 1 if LWFN (Type 1) is preferred over
TrueType in case *both* are available (this is not common,
but it *is* possible). */
#ifndef PREFER_LWFN
2006-01-11 11:57:42 +01:00
#define PREFER_LWFN 1
#endif
#if !HAVE_QUICKDRAW_CARBON /* QuickDraw is deprecated since Mac OS X 10.4 */
2006-01-11 11:57:42 +01:00
FT_EXPORT_DEF( FT_Error )
FT_GetFile_From_Mac_Name( const char* fontName,
FSSpec* pathSpec,
FT_Long* face_index )
{
return FT_Err_Unimplemented_Feature;
}
2006-01-11 11:57:42 +01:00
#else
2006-01-11 11:57:42 +01:00
FT_EXPORT_DEF( FT_Error )
FT_GetFile_From_Mac_Name( const char* fontName,
FSSpec* pathSpec,
FT_Long* face_index )
{
OptionBits options = kFMUseGlobalScopeOption;
FMFontFamilyIterator famIter;
OSStatus status = FMCreateFontFamilyIterator( NULL, NULL,
options,
&famIter );
FMFont the_font = 0;
FMFontFamily family = 0;
*face_index = 0;
while ( status == 0 && !the_font )
{
status = FMGetNextFontFamily( &famIter, &family );
if ( status == 0 )
{
int stat2;
FMFontFamilyInstanceIterator instIter;
Str255 famNameStr;
char famName[256];
/* get the family name */
FMGetFontFamilyName( family, famNameStr );
CopyPascalStringToC( famNameStr, famName );
/* iterate through the styles */
FMCreateFontFamilyInstanceIterator( family, &instIter );
*face_index = 0;
2006-01-11 11:57:42 +01:00
stat2 = 0;
while ( stat2 == 0 && !the_font )
{
FMFontStyle style;
FMFontSize size;
FMFont font;
stat2 = FMGetNextFontFamilyInstance( &instIter, &font,
&style, &size );
if ( stat2 == 0 && size == 0 )
{
char fullName[256];
/* build up a complete face name */
ft_strcpy( fullName, famName );
if ( style & bold )
ft_strcat( fullName, " Bold" );
if ( style & italic )
ft_strcat( fullName, " Italic" );
/* compare with the name we are looking for */
if ( ft_strcmp( fullName, fontName ) == 0 )
{
/* found it! */
the_font = font;
}
else
++(*face_index);
}
}
FMDisposeFontFamilyInstanceIterator( &instIter );
}
}
FMDisposeFontFamilyIterator( &famIter );
if ( the_font )
{
FMGetFontContainer( the_font, pathSpec );
return FT_Err_Ok;
}
else
return FT_Err_Unknown_File_Format;
}
2006-01-11 11:57:42 +01:00
#endif /* HAVE_QUICKDRAW_CARBON */
#if !HAVE_ATS
2006-01-11 11:57:42 +01:00
FT_EXPORT_DEF( FT_Error )
FT_GetFile_From_Mac_ATS_Name( const char* fontName,
FSSpec* pathSpec,
FT_Long* face_index )
{
return FT_Err_Unimplemented_Feature;
}
2006-01-11 11:57:42 +01:00
#else
2006-01-11 11:57:42 +01:00
FT_EXPORT_DEF( FT_Error )
FT_GetFile_From_Mac_ATS_Name( const char* fontName,
FSSpec* pathSpec,
FT_Long* face_index )
{
CFStringRef cf_fontName;
ATSFontRef ats_font_id;
2006-01-11 11:57:42 +01:00
*face_index = 0;
2006-01-11 11:57:42 +01:00
cf_fontName = CFStringCreateWithCString( NULL, fontName,
kCFStringEncodingMacRoman );
ats_font_id = ATSFontFindFromName( cf_fontName,
kATSOptionFlagsUnRestrictedScope );
if ( ats_font_id == 0 || ats_font_id == 0xFFFFFFFFUL )
return FT_Err_Unknown_File_Format;
2006-01-11 11:57:42 +01:00
if ( 0 != ATSFontGetFileSpecification( ats_font_id, pathSpec ) )
return FT_Err_Unknown_File_Format;
2006-01-11 11:57:42 +01:00
/* face_index calculation by searching preceding fontIDs */
/* with same FSRef */
{
int i;
FSSpec f;
2006-01-11 11:57:42 +01:00
for ( i = 1; i < ats_font_id; i++ )
{
if ( 0 != ATSFontGetFileSpecification( ats_font_id - i,
&f ) ||
f.vRefNum != pathSpec->vRefNum ||
f.parID != pathSpec->parID ||
f.name[0] != pathSpec->name[0] ||
0 != ft_strncmp( (char *)f.name + 1,
(char *)pathSpec->name + 1,
f.name[0] ) )
break;
}
*face_index = ( i - 1 );
}
return FT_Err_Ok;
}
2006-01-11 11:57:42 +01:00
#endif /* HAVE_ATS */
#if defined( __MWERKS__ ) && !TARGET_RT_MAC_MACHO
#define STREAM_FILE( stream ) ( (FT_FILE*)stream->descriptor.pointer )
FT_CALLBACK_DEF( void )
ft_FSp_stream_close( FT_Stream stream )
{
ft_fclose( STREAM_FILE( stream ) );
stream->descriptor.pointer = NULL;
stream->size = 0;
stream->base = 0;
}
FT_CALLBACK_DEF( unsigned long )
ft_FSp_stream_io( FT_Stream stream,
unsigned long offset,
unsigned char* buffer,
unsigned long count )
{
FT_FILE* file;
file = STREAM_FILE( stream );
ft_fseek( file, offset, SEEK_SET );
return (unsigned long)ft_fread( buffer, 1, count, file );
}
#endif /* __MWERKS__ && !TARGET_RT_MAC_MACHO */
#if HAVE_FSSPEC && !HAVE_FSREF
2006-01-11 11:57:42 +01:00
static OSErr
2006-01-11 11:57:42 +01:00
FT_FSPathMakeSpec( const UInt8* pathname,
FSSpec* spec_p,
Boolean isDirectory )
{
const char *p, *q;
short vRefNum;
long dirID;
Str255 nodeName;
OSErr err;
p = q = (const char *)pathname;
dirID = 0;
vRefNum = 0;
while ( 1 )
2006-01-11 11:57:42 +01:00
{
q = p + FT_MIN( 255, ft_strlen( p ) );
2006-01-11 11:57:42 +01:00
if ( q == p )
return 0;
if ( 255 < ft_strlen( (char *)pathname ) )
{
while ( p < q && *q != ':' )
q--;
}
if ( p < q )
*(char *)nodeName = q - p;
else if ( ft_strlen( p ) < 256 )
*(char *)nodeName = ft_strlen( p );
else
return errFSNameTooLong;
ft_strncpy( (char *)nodeName + 1, (char *)p, *(char *)nodeName );
err = FSMakeFSSpec( vRefNum, dirID, nodeName, spec_p );
if ( err || '\0' == *q )
return err;
vRefNum = spec_p->vRefNum;
dirID = spec_p->parID;
p = q;
}
}
static OSErr
FT_FSpMakePath( const FSSpec* spec_p,
UInt8* path,
UInt32 maxPathSize )
{
OSErr err;
FSSpec spec = *spec_p;
short vRefNum;
long dirID;
Str255 parDir_name;
FT_MEM_SET( path, 0, maxPathSize );
while ( 1 )
{
int child_namelen = ft_strlen( (char *)path );
unsigned char node_namelen = spec.name[0];
unsigned char* node_name = spec.name + 1;
if ( node_namelen + child_namelen > maxPathSize )
return errFSNameTooLong;
FT_MEM_MOVE( path + node_namelen + 1, path, child_namelen );
FT_MEM_COPY( path, node_name, node_namelen );
if ( child_namelen > 0 )
2006-01-11 11:57:42 +01:00
path[node_namelen] = ':';
vRefNum = spec.vRefNum;
dirID = spec.parID;
parDir_name[0] = '\0';
err = FSMakeFSSpec( vRefNum, dirID, parDir_name, &spec );
if ( noErr != err || dirID == spec.parID )
break;
}
return noErr;
}
2006-01-11 11:57:42 +01:00
#endif /* HAVE_FSSPEC && !HAVE_FSREF */
static OSErr
FT_FSPathMakeRes( const UInt8* pathname,
short* res )
{
2006-01-11 11:57:42 +01:00
#if HAVE_FSREF
2006-01-11 11:57:42 +01:00
OSErr err;
FSRef ref;
2006-01-11 11:57:42 +01:00
if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) )
return FT_Err_Cannot_Open_Resource;
2006-01-11 11:57:42 +01:00
/* at present, no support for dfont format */
err = FSOpenResourceFile( &ref, 0, NULL, fsRdPerm, res );
if ( noErr == err )
return err;
/* fallback to original resource-fork font */
*res = FSOpenResFile( &ref, fsRdPerm );
err = ResError();
2006-01-11 11:57:42 +01:00
#else
2006-01-11 11:57:42 +01:00
OSErr err;
FSSpec spec;
2006-01-11 11:57:42 +01:00
if ( noErr != FT_FSPathMakeSpec( pathname, &spec, FALSE ) )
return FT_Err_Cannot_Open_Resource;
2006-01-11 11:57:42 +01:00
/* at present, no support for dfont format without FSRef */
/* (see above), try original resource-fork font */
*res = FSpOpenResFile( &spec, fsRdPerm );
err = ResError();
2006-01-11 11:57:42 +01:00
#endif /* HAVE_FSREF */
return err;
}
/* Return the file type for given pathname */
static OSType
get_file_type_from_path( const UInt8* pathname )
{
2006-01-11 11:57:42 +01:00
#if HAVE_FSREF
2006-01-11 11:57:42 +01:00
FSRef ref;
FSCatalogInfo info;
if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) )
return ( OSType ) 0;
if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoFinderInfo, &info,
NULL, NULL, NULL ) )
return ( OSType ) 0;
2006-01-11 11:57:42 +01:00
return ((FInfo *)(info.finderInfo))->fdType;
#else
2006-01-11 11:57:42 +01:00
FSSpec spec;
2000-07-29 22:38:19 +02:00
FInfo finfo;
if ( noErr != FT_FSPathMakeSpec( pathname, &spec, FALSE ) )
return ( OSType ) 0;
if ( noErr != FSpGetFInfo( &spec, &finfo ) )
return ( OSType ) 0;
2000-07-29 22:38:19 +02:00
return finfo.fdType;
2006-01-11 11:57:42 +01:00
#endif /* HAVE_FSREF */
}
2001-12-07 22:56:32 +01:00
/* Given a PostScript font name, create the Macintosh LWFN file name. */
static void
create_lwfn_name( char* ps_name,
Str255 lwfn_file_name )
{
int max = 5, count = 0;
FT_Byte* p = lwfn_file_name;
FT_Byte* q = (FT_Byte*)ps_name;
lwfn_file_name[0] = 0;
while ( *q )
{
if ( ft_isupper( *q ) )
{
if ( count )
max = 3;
count = 0;
}
if ( count < max && ( ft_isalnum( *q ) || *q == '_' ) )
{
*++p = *q;
lwfn_file_name[0]++;
count++;
}
q++;
}
}
static short
count_faces_sfnt( char* fond_data )
{
/* The count is 1 greater than the value in the FOND. */
/* Isn't that cute? :-) */
2006-06-25 08:07:14 +02:00
return EndianS16_BtoN( *( (short*)( fond_data +
sizeof ( FamRec ) ) ) ) + 1;
}
2005-12-23 13:22:46 +01:00
static short
count_faces_scalable( char* fond_data )
2005-12-23 13:22:46 +01:00
{
AsscEntry* assoc;
FamRec* fond;
short i, face, face_all;
2006-01-11 11:57:42 +01:00
fond = (FamRec*)fond_data;
2006-06-25 08:07:14 +02:00
face_all = EndianS16_BtoN( *( (short *)( fond_data +
sizeof ( FamRec ) ) ) ) + 1;
2006-01-11 11:57:42 +01:00
assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 );
face = 0;
2005-12-23 13:22:46 +01:00
for ( i = 0; i < face_all; i++ )
{
if ( 0 == EndianS16_BtoN( assoc[i].fontSize ) )
face++;
2005-12-23 13:22:46 +01:00
}
return face;
}
/* Look inside the FOND data, answer whether there should be an SFNT
2001-12-07 22:56:32 +01:00
resource, and answer the name of a possible LWFN Type 1 file.
Thanks to Paul Miller (paulm@profoundeffects.com) for the fix
to load a face OTHER than the first one in the FOND!
*/
static void
parse_fond( char* fond_data,
short* have_sfnt,
short* sfnt_id,
Str255 lwfn_file_name,
short face_index )
{
AsscEntry* assoc;
AsscEntry* base_assoc;
FamRec* fond;
*sfnt_id = 0;
*have_sfnt = 0;
lwfn_file_name[0] = 0;
fond = (FamRec*)fond_data;
assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 );
base_assoc = assoc;
/* Let's do a little range checking before we get too excited here */
if ( face_index < count_faces_sfnt( fond_data ) )
{
assoc += face_index; /* add on the face_index! */
/* if the face at this index is not scalable,
fall back to the first one (old behavior) */
if ( EndianS16_BtoN( assoc->fontSize ) == 0 )
{
*have_sfnt = 1;
*sfnt_id = EndianS16_BtoN( assoc->fontID );
}
else if ( base_assoc->fontSize == 0 )
{
*have_sfnt = 1;
*sfnt_id = EndianS16_BtoN( base_assoc->fontID );
}
}
if ( EndianS32_BtoN( fond->ffStylOff ) )
{
unsigned char* p = (unsigned char*)fond_data;
StyleTable* style;
unsigned short string_count;
char ps_name[256];
unsigned char* names[64];
int i;
2000-07-29 22:38:19 +02:00
p += EndianS32_BtoN( fond->ffStylOff );
style = (StyleTable*)p;
2000-07-29 22:38:19 +02:00
p += sizeof ( StyleTable );
string_count = EndianS16_BtoN( *(short*)(p) );
2000-07-29 22:38:19 +02:00
p += sizeof ( short );
2006-01-11 11:57:42 +01:00
for ( i = 0; i < string_count && i < 64; i++ )
{
names[i] = p;
2006-01-11 11:57:42 +01:00
p += names[i][0];
p++;
}
{
size_t ps_name_len = (size_t)names[0][0];
if ( ps_name_len != 0 )
{
ft_memcpy(ps_name, names[0] + 1, ps_name_len);
ps_name[ps_name_len] = 0;
}
if ( style->indexes[0] > 1 )
{
unsigned char* suffixes = names[style->indexes[0] - 1];
for ( i = 1; i <= suffixes[0]; i++ )
{
unsigned char* s;
size_t j = suffixes[i] - 1;
if ( j < string_count && ( s = names[j] ) != NULL )
{
size_t s_len = (size_t)s[0];
2000-07-29 22:38:19 +02:00
if ( s_len != 0 && ps_name_len + s_len < sizeof ( ps_name ) )
{
ft_memcpy( ps_name + ps_name_len, s + 1, s_len );
ps_name_len += s_len;
ps_name[ps_name_len] = 0;
}
}
}
}
}
create_lwfn_name( ps_name, lwfn_file_name );
}
}
static FT_Error
lookup_lwfn_by_fond( const UInt8* path_fond,
const StringPtr base_lwfn,
2006-01-11 11:57:42 +01:00
UInt8* path_lwfn,
int path_size )
{
2006-01-11 11:57:42 +01:00
#if HAVE_FSREF
2006-01-11 11:57:42 +01:00
FSRef ref, par_ref;
int dirname_len;
2006-01-11 11:57:42 +01:00
/* Pathname for FSRef can be in various formats: HFS, HFS+, and POSIX. */
/* We should not extract parent directory by string manipulation. */
if ( noErr != FSPathMakeRef( path_fond, &ref, FALSE ) )
return FT_Err_Invalid_Argument;
if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone,
NULL, NULL, NULL, &par_ref ) )
return FT_Err_Invalid_Argument;
if ( noErr != FSRefMakePath( &par_ref, path_lwfn, path_size ) )
return FT_Err_Invalid_Argument;
if ( ft_strlen( (char *)path_lwfn ) + 1 + base_lwfn[0] > path_size )
return FT_Err_Invalid_Argument;
/* now we have absolute dirname in lookup_path */
if ( path_lwfn[0] == '/' )
ft_strcat( (char *)path_lwfn, "/" );
else
ft_strcat( (char *)path_lwfn, ":" );
dirname_len = ft_strlen( (char *)path_lwfn );
ft_strcat( (char *)path_lwfn, (char *)base_lwfn + 1 );
2006-01-11 11:57:42 +01:00
path_lwfn[dirname_len + base_lwfn[0]] = '\0';
if ( noErr != FSPathMakeRef( path_lwfn, &ref, FALSE ) )
return FT_Err_Cannot_Open_Resource;
if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone,
NULL, NULL, NULL, NULL ) )
return FT_Err_Cannot_Open_Resource;
return FT_Err_Ok;
2006-01-11 11:57:42 +01:00
#else
2006-01-11 11:57:42 +01:00
int i;
FSSpec spec;
/* pathname for FSSpec is always HFS format */
if ( ft_strlen( (char *)path_fond ) > path_size )
return FT_Err_Invalid_Argument;
ft_strcpy( (char *)path_lwfn, (char *)path_fond );
i = ft_strlen( (char *)path_lwfn ) - 1;
while ( i > 0 && ':' != path_lwfn[i] )
2006-01-11 11:57:42 +01:00
i--;
if ( i + 1 + base_lwfn[0] > path_size )
return FT_Err_Invalid_Argument;
if ( ':' == path_lwfn[i] )
{
ft_strcpy( (char *)path_lwfn + i + 1, (char *)base_lwfn + 1 );
2006-01-11 11:57:42 +01:00
path_lwfn[i + 1 + base_lwfn[0]] = '\0';
}
else
{
ft_strcpy( (char *)path_lwfn, (char *)base_lwfn + 1 );
2006-01-11 11:57:42 +01:00
path_lwfn[base_lwfn[0]] = '\0';
}
if ( noErr != FT_FSPathMakeSpec( path_lwfn, &spec, FALSE ) )
return FT_Err_Cannot_Open_Resource;
return FT_Err_Ok;
2006-01-11 11:57:42 +01:00
#endif /* HAVE_FSREF */
}
static short
count_faces( Handle fond,
const UInt8* pathname )
{
short sfnt_id;
short have_sfnt, have_lwfn;
2006-01-11 11:57:42 +01:00
Str255 lwfn_file_name;
UInt8 buff[HFS_MAXPATHLEN];
2006-01-11 11:57:42 +01:00
FT_Error err;
short num_faces;
have_sfnt = have_lwfn = 0;
HLock( fond );
parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, 0 );
if ( lwfn_file_name[0] )
{
err = lookup_lwfn_by_fond( pathname, lwfn_file_name,
2006-01-11 11:57:42 +01:00
buff, sizeof ( buff ) );
if ( FT_Err_Ok == err )
have_lwfn = 1;
}
if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) )
num_faces = 1;
else
num_faces = count_faces_scalable( *fond );
HUnlock( fond );
return num_faces;
}
/* Read Type 1 data from the POST resources inside the LWFN file,
2006-01-11 11:57:42 +01:00
return a PFB buffer. This is somewhat convoluted because the FT2
PFB parser wants the ASCII header as one chunk, and the LWFN
2006-01-11 11:57:42 +01:00
chunks are often not organized that way, so we glue chunks
of the same type together. */
static FT_Error
read_lwfn( FT_Memory memory,
short res,
FT_Byte** pfb_data,
FT_ULong* size )
{
FT_Error error = FT_Err_Ok;
short res_id;
unsigned char *buffer, *p, *size_p = NULL;
FT_ULong total_size = 0;
FT_ULong old_total_size = 0;
FT_ULong post_size, pfb_chunk_size;
Handle post_data;
char code, last_code;
UseResFile( res );
/* First pass: load all POST resources, and determine the size of */
/* the output buffer. */
res_id = 501;
last_code = -1;
2000-07-29 22:38:19 +02:00
for (;;)
{
post_data = Get1Resource( 'POST', res_id++ );
if ( post_data == NULL )
2006-01-11 11:57:42 +01:00
break; /* we are done */
code = (*post_data)[0];
if ( code != last_code )
{
if ( code == 5 )
total_size += 2; /* just the end code */
else
total_size += 6; /* code + 4 bytes chunk length */
}
total_size += GetHandleSize( post_data ) - 2;
last_code = code;
/* detect integer overflows */
if ( total_size < old_total_size )
{
error = FT_Err_Array_Too_Large;
goto Error;
}
old_total_size = total_size;
}
if ( FT_ALLOC( buffer, (FT_Long)total_size ) )
goto Error;
/* Second pass: append all POST data to the buffer, add PFB fields. */
/* Glue all consecutive chunks of the same type together. */
p = buffer;
res_id = 501;
last_code = -1;
pfb_chunk_size = 0;
for (;;)
{
post_data = Get1Resource( 'POST', res_id++ );
if ( post_data == NULL )
2006-01-11 11:57:42 +01:00
break; /* we are done */
post_size = (FT_ULong)GetHandleSize( post_data ) - 2;
code = (*post_data)[0];
if ( code != last_code )
{
if ( last_code != -1 )
{
2006-01-11 11:57:42 +01:00
/* we are done adding a chunk, fill in the size field */
if ( size_p != NULL )
{
*size_p++ = (FT_Byte)( pfb_chunk_size & 0xFF );
*size_p++ = (FT_Byte)( ( pfb_chunk_size >> 8 ) & 0xFF );
*size_p++ = (FT_Byte)( ( pfb_chunk_size >> 16 ) & 0xFF );
*size_p++ = (FT_Byte)( ( pfb_chunk_size >> 24 ) & 0xFF );
}
pfb_chunk_size = 0;
}
*p++ = 0x80;
if ( code == 5 )
*p++ = 0x03; /* the end */
else if ( code == 2 )
*p++ = 0x02; /* binary segment */
else
*p++ = 0x01; /* ASCII segment */
if ( code != 5 )
{
size_p = p; /* save for later */
p += 4; /* make space for size field */
}
}
ft_memcpy( p, *post_data + 2, post_size );
pfb_chunk_size += post_size;
p += post_size;
last_code = code;
}
*pfb_data = buffer;
*size = total_size;
2000-07-29 22:38:19 +02:00
Error:
CloseResFile( res );
return error;
}
/* Finalizer for a memory stream; gets called by FT_Done_Face().
It frees the memory it uses. */
static void
memory_stream_close( FT_Stream stream )
{
FT_Memory memory = stream->memory;
FT_FREE( stream->base );
2000-07-29 22:38:19 +02:00
stream->size = 0;
stream->base = 0;
stream->close = 0;
}
/* Create a new memory stream from a buffer and a size. */
static FT_Error
new_memory_stream( FT_Library library,
FT_Byte* base,
FT_ULong size,
FT_Stream_CloseFunc close,
FT_Stream* astream )
{
FT_Error error;
FT_Memory memory;
FT_Stream stream;
if ( !library )
return FT_Err_Invalid_Library_Handle;
if ( !base )
return FT_Err_Invalid_Argument;
*astream = 0;
memory = library->memory;
if ( FT_NEW( stream ) )
goto Exit;
FT_Stream_OpenMemory( stream, base, size );
stream->close = close;
*astream = stream;
Exit:
return error;
}
/* Create a new FT_Face given a buffer and a driver name. */
static FT_Error
open_face_from_buffer( FT_Library library,
FT_Byte* base,
FT_ULong size,
FT_Long face_index,
char* driver_name,
FT_Face* aface )
{
FT_Open_Args args;
FT_Error error;
FT_Stream stream;
FT_Memory memory = library->memory;
error = new_memory_stream( library,
base,
size,
memory_stream_close,
&stream );
if ( error )
{
FT_FREE( base );
return error;
}
2006-01-11 11:57:42 +01:00
args.flags = FT_OPEN_STREAM;
args.stream = stream;
if ( driver_name )
{
2006-01-11 11:57:42 +01:00
args.flags = args.flags | FT_OPEN_DRIVER;
args.driver = FT_Get_Module( library, driver_name );
}
2000-07-29 22:38:19 +02:00
/* At this point, face_index has served its purpose; */
/* whoever calls this function has already used it to */
/* locate the correct font data. We should not propagate */
/* this index to FT_Open_Face() (unless it is negative). */
if ( face_index > 0 )
face_index = 0;
error = FT_Open_Face( library, &args, face_index, aface );
if ( error == FT_Err_Ok )
(*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM;
else
FT_Stream_Free( stream, 0 );
return error;
}
/* Create a new FT_Face from a file spec to an LWFN file. */
static FT_Error
2006-01-11 11:57:42 +01:00
FT_New_Face_From_LWFN( FT_Library library,
const UInt8* pathname,
2006-01-11 11:57:42 +01:00
FT_Long face_index,
FT_Face* aface )
{
FT_Byte* pfb_data;
FT_ULong pfb_size;
FT_Error error;
short res;
if ( noErr != FT_FSPathMakeRes( pathname, &res ) )
return FT_Err_Cannot_Open_Resource;
pfb_data = NULL;
pfb_size = 0;
error = read_lwfn( library->memory, res, &pfb_data, &pfb_size );
CloseResFile( res ); /* PFB is already loaded, useless anymore */
if ( error )
return error;
return open_face_from_buffer( library,
pfb_data,
pfb_size,
face_index,
"type1",
aface );
}
/* Create a new FT_Face from an SFNT resource, specified by res ID. */
static FT_Error
FT_New_Face_From_SFNT( FT_Library library,
short sfnt_id,
FT_Long face_index,
FT_Face* aface )
{
2000-07-29 22:38:19 +02:00
Handle sfnt = NULL;
FT_Byte* sfnt_data;
size_t sfnt_size;
2006-01-11 11:57:42 +01:00
FT_Error error = FT_Err_Ok;
2000-07-29 22:38:19 +02:00
FT_Memory memory = library->memory;
int is_cff;
sfnt = GetResource( 'sfnt', sfnt_id );
if ( ResError() )
return FT_Err_Invalid_Handle;
sfnt_size = (FT_ULong)GetHandleSize( sfnt );
if ( FT_ALLOC( sfnt_data, (FT_Long)sfnt_size ) )
{
ReleaseResource( sfnt );
return error;
}
HLock( sfnt );
ft_memcpy( sfnt_data, *sfnt, sfnt_size );
HUnlock( sfnt );
ReleaseResource( sfnt );
is_cff = sfnt_size > 4 && sfnt_data[0] == 'O' &&
sfnt_data[1] == 'T' &&
sfnt_data[2] == 'T' &&
sfnt_data[3] == 'O';
return open_face_from_buffer( library,
sfnt_data,
sfnt_size,
face_index,
is_cff ? "cff" : "truetype",
aface );
}
/* Create a new FT_Face from a file spec to a suitcase file. */
static FT_Error
2006-01-11 11:57:42 +01:00
FT_New_Face_From_Suitcase( FT_Library library,
const UInt8* pathname,
2006-01-11 11:57:42 +01:00
FT_Long face_index,
FT_Face* aface )
{
2005-12-23 13:22:46 +01:00
FT_Error error = FT_Err_Cannot_Open_Resource;
short res_ref, res_index;
Handle fond;
2005-12-23 13:22:46 +01:00
short num_faces_in_res, num_faces_in_fond;
if ( noErr != FT_FSPathMakeRes( pathname, &res_ref ) )
return FT_Err_Cannot_Open_Resource;
UseResFile( res_ref );
if ( ResError() )
return FT_Err_Cannot_Open_Resource;
2005-12-23 13:22:46 +01:00
num_faces_in_res = 0;
for ( res_index = 1; ; ++res_index )
{
fond = Get1IndResource( 'FOND', res_index );
if ( ResError() )
break;
2001-12-07 22:56:32 +01:00
num_faces_in_fond = count_faces( fond, pathname );
2005-12-23 13:22:46 +01:00
num_faces_in_res += num_faces_in_fond;
2001-12-07 22:56:32 +01:00
2005-12-23 13:22:46 +01:00
if ( 0 <= face_index && face_index < num_faces_in_fond && error )
error = FT_New_Face_From_FOND( library, fond, face_index, aface );
2006-01-11 11:57:42 +01:00
2005-12-23 13:22:46 +01:00
face_index -= num_faces_in_fond;
2001-12-07 22:56:32 +01:00
}
CloseResFile( res_ref );
2005-12-23 13:22:46 +01:00
if ( FT_Err_Ok == error && NULL != aface )
(*aface)->num_faces = num_faces_in_res;
2001-12-07 22:56:32 +01:00
return error;
}
/* documentation is in ftmac.h */
FT_EXPORT_DEF( FT_Error )
FT_New_Face_From_FOND( FT_Library library,
Handle fond,
FT_Long face_index,
FT_Face* aface )
{
2006-01-11 11:57:42 +01:00
short sfnt_id, have_sfnt, have_lwfn = 0;
short fond_id;
OSType fond_type;
Str255 fond_name;
Str255 lwfn_file_name;
UInt8 path_lwfn[HFS_MAXPATHLEN];
OSErr err;
FT_Error error;
GetResInfo( fond, &fond_id, &fond_type, fond_name );
if ( ResError() != noErr || fond_type != 'FOND' )
return FT_Err_Invalid_File_Format;
HLock( fond );
parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, face_index );
HUnlock( fond );
if ( lwfn_file_name[0] )
{
short res;
2001-12-07 22:56:32 +01:00
res = HomeResFile( fond );
if ( noErr != ResError() )
goto found_no_lwfn_file;
2001-12-07 22:56:32 +01:00
#if HAVE_FSREF
2006-01-11 11:57:42 +01:00
{
UInt8 path_fond[HFS_MAXPATHLEN];
FSRef ref;
2006-01-11 11:57:42 +01:00
err = FSGetForkCBInfo( res, kFSInvalidVolumeRefNum,
NULL, NULL, NULL, &ref, NULL );
if ( noErr != err )
goto found_no_lwfn_file;
2006-01-11 11:57:42 +01:00
err = FSRefMakePath( &ref, path_fond, sizeof ( path_fond ) );
if ( noErr != err )
goto found_no_lwfn_file;
error = lookup_lwfn_by_fond( path_fond, lwfn_file_name,
2006-01-11 11:57:42 +01:00
path_lwfn, sizeof ( path_lwfn ) );
if ( FT_Err_Ok == error )
have_lwfn = 1;
}
2006-01-11 11:57:42 +01:00
#elif HAVE_FSSPEC
2006-01-11 11:57:42 +01:00
{
UInt8 path_fond[HFS_MAXPATHLEN];
FCBPBRec pb;
Str255 fond_file_name;
FSSpec spec;
2006-01-11 11:57:42 +01:00
FT_MEM_SET( &spec, 0, sizeof ( FSSpec ) );
FT_MEM_SET( &pb, 0, sizeof ( FCBPBRec ) );
pb.ioNamePtr = fond_file_name;
pb.ioVRefNum = 0;
pb.ioRefNum = res;
pb.ioFCBIndx = 0;
err = PBGetFCBInfoSync( &pb );
if ( noErr != err )
goto found_no_lwfn_file;
2006-01-11 11:57:42 +01:00
err = FSMakeFSSpec( pb.ioFCBVRefNum, pb.ioFCBParID,
fond_file_name, &spec );
if ( noErr != err )
goto found_no_lwfn_file;
2006-01-11 11:57:42 +01:00
err = FT_FSpMakePath( &spec, path_fond, sizeof ( path_fond ) );
if ( noErr != err )
goto found_no_lwfn_file;
error = lookup_lwfn_by_fond( path_fond, lwfn_file_name,
2006-01-11 11:57:42 +01:00
path_lwfn, sizeof ( path_lwfn ) );
if ( FT_Err_Ok == error )
have_lwfn = 1;
2006-01-11 11:57:42 +01:00
}
#endif /* HAVE_FSREF, HAVE_FSSPEC */
}
2001-12-07 22:56:32 +01:00
if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) )
return FT_New_Face_From_LWFN( library,
path_lwfn,
face_index,
aface );
2001-12-07 22:56:32 +01:00
2006-01-11 11:57:42 +01:00
found_no_lwfn_file:
if ( have_sfnt )
return FT_New_Face_From_SFNT( library,
sfnt_id,
face_index,
aface );
2001-12-07 22:56:32 +01:00
2006-01-11 11:57:42 +01:00
return FT_Err_Unknown_File_Format;
2001-12-07 22:56:32 +01:00
}
/* Common function to load a new FT_Face from a resource file. */
static FT_Error
2006-01-11 11:57:42 +01:00
FT_New_Face_From_Resource( FT_Library library,
const UInt8* pathname,
2006-01-11 11:57:42 +01:00
FT_Long face_index,
FT_Face* aface )
{
OSType file_type;
FT_Error error;
2006-01-11 11:57:42 +01:00
/* LWFN is a (very) specific file format, check for it explicitly */
file_type = get_file_type_from_path( pathname );
2006-01-11 11:57:42 +01:00
if ( file_type == 'LWFN' )
return FT_New_Face_From_LWFN( library, pathname, face_index, aface );
2006-01-11 11:57:42 +01:00
/* Otherwise the file type doesn't matter (there are more than */
/* `FFIL' and `tfil'). Just try opening it as a font suitcase; */
/* if it works, fine. */
error = FT_New_Face_From_Suitcase( library, pathname, face_index, aface );
2006-01-11 11:57:42 +01:00
if ( error == 0 )
return error;
/* let it fall through to normal loader (.ttf, .otf, etc.); */
/* we signal this by returning no error and no FT_Face */
*aface = NULL;
return 0;
}
/*************************************************************************/
/* */
/* <Function> */
/* FT_New_Face */
/* */
/* <Description> */
/* This is the Mac-specific implementation of FT_New_Face. In */
2000-07-29 22:38:19 +02:00
/* addition to the standard FT_New_Face() functionality, it also */
/* accepts pathnames to Mac suitcase files. For further */
/* documentation see the original FT_New_Face() in freetype.h. */
/* */
FT_EXPORT_DEF( FT_Error )
FT_New_Face( FT_Library library,
const char* pathname,
FT_Long face_index,
FT_Face* aface )
{
FT_Open_Args args;
FT_Error error;
/* test for valid `library' and `aface' delayed to FT_Open_Face() */
if ( !pathname )
return FT_Err_Invalid_Argument;
2006-01-11 11:57:42 +01:00
error = FT_Err_Ok;
*aface = NULL;
/* try resourcefork based font: LWFN, FFIL */
2006-01-11 11:57:42 +01:00
error = FT_New_Face_From_Resource( library, (UInt8 *)pathname,
face_index, aface );
if ( error != 0 || *aface != NULL )
return error;
/* let it fall through to normal loader (.ttf, .otf, etc.) */
args.flags = FT_OPEN_PATHNAME;
args.pathname = (char*)pathname;
return FT_Open_Face( library, &args, face_index, aface );
}
2000-07-29 22:38:19 +02:00
/*************************************************************************/
/* */
/* <Function> */
/* FT_New_Face_From_FSRef */
/* */
/* <Description> */
/* FT_New_Face_From_FSRef is identical to FT_New_Face except it */
/* accepts an FSRef instead of a path. */
/* */
FT_EXPORT_DEF( FT_Error )
FT_New_Face_From_FSRef( FT_Library library,
const FSRef* ref,
2006-01-11 11:57:42 +01:00
FT_Long face_index,
FT_Face* aface )
{
2006-01-11 11:57:42 +01:00
#if !HAVE_FSREF
2006-01-11 11:57:42 +01:00
return FT_Err_Unimplemented_Feature;
2006-01-11 11:57:42 +01:00
#else
2006-01-11 11:57:42 +01:00
FT_Error error;
FT_Open_Args args;
OSErr err;
UInt8 pathname[HFS_MAXPATHLEN];
if ( !ref )
return FT_Err_Invalid_Argument;
err = FSRefMakePath( ref, pathname, sizeof ( pathname ) );
if ( err )
error = FT_Err_Cannot_Open_Resource;
error = FT_New_Face_From_Resource( library, pathname, face_index, aface );
if ( error != 0 || *aface != NULL )
return error;
/* fallback to datafork font */
args.flags = FT_OPEN_PATHNAME;
args.pathname = (char*)pathname;
return FT_Open_Face( library, &args, face_index, aface );
2006-01-11 11:57:42 +01:00
#endif /* HAVE_FSREF */
}
/*************************************************************************/
/* */
/* <Function> */
/* FT_New_Face_From_FSSpec */
/* */
/* <Description> */
/* FT_New_Face_From_FSSpec is identical to FT_New_Face except it */
/* accepts an FSSpec instead of a path. */
/* */
FT_EXPORT_DEF( FT_Error )
FT_New_Face_From_FSSpec( FT_Library library,
const FSSpec* spec,
FT_Long face_index,
FT_Face* aface )
2006-01-11 11:57:42 +01:00
{
#if HAVE_FSREF
2006-01-11 11:57:42 +01:00
FSRef ref;
if ( !spec || FSpMakeFSRef( spec, &ref ) != noErr )
return FT_Err_Invalid_Argument;
else
return FT_New_Face_From_FSRef( library, &ref, face_index, aface );
2006-01-11 11:57:42 +01:00
#elif HAVE_FSSPEC
2006-01-11 11:57:42 +01:00
FT_Error error;
FT_Open_Args args;
2006-01-11 11:57:42 +01:00
OSErr err;
UInt8 pathname[HFS_MAXPATHLEN];
if ( !spec )
return FT_Err_Invalid_Argument;
err = FT_FSpMakePath( spec, pathname, sizeof ( pathname ) );
2006-01-11 11:57:42 +01:00
if ( err )
error = FT_Err_Cannot_Open_Resource;
error = FT_New_Face_From_Resource( library, pathname, face_index, aface );
if ( error != 0 || *aface != NULL )
2006-01-11 11:57:42 +01:00
return error;
/* fallback to datafork font */
args.flags = FT_OPEN_PATHNAME;
args.pathname = (char*)pathname;
return FT_Open_Face( library, &args, face_index, aface );
2006-01-11 11:57:42 +01:00
#else
2006-01-11 11:57:42 +01:00
return FT_Err_Unimplemented_Feature;
2006-01-11 11:57:42 +01:00
#endif /* HAVE_FSREF, HAVE_FSSPEC */
}
2000-07-29 22:38:19 +02:00
/* END */