/* $Xorg: miFont.h,v 1.3 2000/08/17 19:47:03 cpqbld Exp $ */

/***********************************************************

Copyright 1989, 1990, 1991, 1998  The Open Group

All Rights Reserved.

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used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.

Copyright 1989, 1990, 1991 by Sun Microsystems, Inc. 

                        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 name of Sun Microsystems,
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the software without specific, written prior permission.  

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INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT 
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******************************************************************/
/* $XFree86: xc/programs/Xserver/PEX5/ddpex/mi/include/miFont.h,v 1.3 2001/01/17 22:12:19 dawes Exp $ */
/* 
 * font internal format
 */
#ifndef MI_FONT_H
#define MI_FONT_H

#include "ddpex.h"
#include "ddpex3.h"
#include "miRender.h"
#include "PEXprotost.h"

#define START_PROPS 0x100
#define START_DISPATCH(_num_props)  (START_PROPS + 160 * _num_props)
#define START_PATH(_num_ch_, _num_props)  (START_DISPATCH(_num_props) + sizeof(Dispatch) * _num_ch_)
#define NUM_DISPATCH    128

#ifndef PADDING
#define PADDING(n) ( (n)%4 ? (4 - (n)%4) : 0)
#endif /* PADDING */

/* definitions in the local font coordinate system */
#define FONT_COORD_HEIGHT   100.0
#define FONT_COORD_BASE	    0.0
#define FONT_COORD_CAP	    100.0
#define FONT_COORD_HALF	    50.0

typedef enum {
    PATH_2D=0,
    PATH_3D=1,
    PATH_4D=2
} Font_path_type;

typedef struct {
    Font_path_type  type;
    ddFLOAT	    center;
    ddFLOAT	    right;
    ddULONG	    n_vertices;
    miListHeader    strokes;
} Ch_stroke_data;

typedef enum {
    FONT_POLYLINES=0,
    FONT_SPLINES=1,
    FONT_POLYGONS=2
} Font_type;

typedef struct {
    Font_type		font_type;
    char		name[80];
    unsigned long	num_ch;
    float		top, bottom, max_width;
    Ch_stroke_data    **ch_data;    /* list of *Ch_stroke_data, one per char */
    pexFontInfo		font_info;
    pexFontProp	       *properties; /* list of associated properties */
    int		       lutRefCount;/* number of LUTs referencing this font */
    int			freeFlag;   /* should this be freed when no more refs */
} miFontHeader;

typedef struct {
    ddFLOAT    top, bottom, width;
} Meta_font;

typedef struct {
  char      propname[80];
  char      propvalue[80];
}Property;

typedef struct
{
    int     magic;	  /* magic number */
    char    name[80];     /* name of this font */
    float   top,	  /* extreme values */
            bottom,
            max_width;
    int     num_ch;       /* no. of fonts in the set */
    int     num_props;    /* no. of font properties */
    Property *properties; /* array of properties */
} Font_file_header;

typedef struct
{
    float   center,	  /* center of the character */
            right;	  /* right edge */
    long    offset;	  /* offset in the file of the character
			   * description */
} Dispatch;

#endif	/* MI_FONT_H */