home *** CD-ROM | disk | FTP | other *** search
- /***********************************************************
- Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
- and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the names of Digital or MIT not be
- used in advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
- ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
- DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
- ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
- ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- SOFTWARE.
-
- ******************************************************************/
- #ifndef SNFSTRUCT_H
- #define SNFSTRUCT_H 1
- #include "font.h"
- #include "misc.h"
-
- /*
- * This file describes the Server Natural Font format.
- * SNF fonts are both CPU-dependent and frame buffer bit order dependent.
- * This file is used by:
- * 1) the server, to hold font information read out of font files.
- * 2) font converters
- *
- * Each font file contains the following
- * data structures, with no padding in-between.
- *
- * 1) The XFONTINFO structure
- * hand-padded to a two-short boundary.
- * maxbounds.byteoffset is the total number of bytes in the
- * glpyh array
- * maxbounds.bitOffset is thetotal width of the unpadded font
- *
- * 2) The XCHARINFO array
- * indexed directly with character codes, both on disk
- * and in memory.
- *
- * 3) Character glyphs
- * padded in the server-natural way, and
- * ordered in the device-natural way.
- * End of glyphs padded to 32-bit boundary.
- *
- * 4) nProps font properties
- *
- * 5) a sequence of null-terminated strings, for font properties
- */
-
- #define FONT_FILE_VERSION 4
-
- typedef struct _FontProp {
- CARD32 name; /* offset of string */
- INT32 value; /* number or offset of string */
- Bool indirect; /* value is a string offset */
- } FontPropRec;
-
- /*
- * the following macro definitions describe a font file image in memory
- */
- #define ADDRCharInfoRec( pfi) \
- ((CharInfoRec *) &(pfi)[1])
-
- #define ADDRCHARGLYPHS( pfi) \
- (((char *) &(pfi)[1]) + BYTESOFCHARINFO(pfi))
-
- /*
- * pad out glyphs to a CARD32 boundary
- */
- #define ADDRXFONTPROPS( pfi) \
- ((DIXFontProp *) ((char *)ADDRCHARGLYPHS( pfi) + BYTESOFGLYPHINFO(pfi)))
-
- #define ADDRSTRINGTAB( pfi) \
- ((char *)ADDRXFONTPROPS( pfi) + BYTESOFPROPINFO(pfi))
-
- #define BYTESOFFONTINFO(pfi) (sizeof(FontInfoRec))
- #define BYTESOFCHARINFO(pfi) (sizeof(CharInfoRec) * n2dChars(pfi))
- #define BYTESOFPROPINFO(pfi) (sizeof(FontPropRec) * (pfi)->nProps)
- #define BYTESOFSTRINGINFO(pfi) ((pfi)->lenStrings)
- #define BYTESOFGLYPHINFO(pfi) (((pfi)->maxbounds.byteOffset+3) & ~0x3)
- #define BYTESOFINKINFO(pfi) (sizeof(CharInfoRec) * (2 + n2dChars(pfi)))
-
- #endif /* SNFSTRUCT_H */
-
-