File: bitmap.h

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/* $Id: bitmap.h,v 1.11 1998/03/22 22:31:19 drd Exp $ */

/* GNUPLOT - bitmap.h */

/*[
 * Copyright 1986 - 1993, 1998   Thomas Williams, Colin Kelley
 *
 * Permission to use, copy, and distribute this software and its
 * documentation for any purpose with or 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.
 *
 * Permission to modify the software is granted, but not the right to
 * distribute the complete modified source code.  Modifications are to
 * be distributed as patches to the released version.  Permission to
 * distribute binaries produced by compiling modified sources is granted,
 * provided you
 *   1. distribute the corresponding source modifications from the
 *    released version in the form of a patch file along with the binaries,
 *   2. add special version identification to distinguish your version
 *    in addition to the base release version number,
 *   3. provide your name and address as the primary contact for the
 *    support of your modified version, and
 *   4. retain our contact information in regard to use of the base
 *    software.
 * Permission to distribute the released version of the source code along
 * with corresponding source modifications in the form of a patch file is
 * granted with same provisions 2 through 4 for binary distributions.
 *
 * This software is provided "as is" without express or implied warranty
 * to the extent permitted by applicable law.
]*/


/* allow up to 16 bit width for character array */
typedef unsigned int char_row;
typedef char_row GPFAR * GPFAR char_box;

#define FNT_CHARS   96      /* Number of characters in the font set */

#define FNT5X9 0
#define FNT5X9_VCHAR 11 /* vertical spacing between characters */
#define FNT5X9_VBITS 9 /* actual number of rows of bits per char */
#define FNT5X9_HCHAR 7 /* horizontal spacing between characters */
#define FNT5X9_HBITS 5 /* actual number of bits per row per char */
extern char_row GPFAR fnt5x9[FNT_CHARS][FNT5X9_VBITS];

#define FNT9X17 1
#define FNT9X17_VCHAR 21 /* vertical spacing between characters */
#define FNT9X17_VBITS 17 /* actual number of rows of bits per char */
#define FNT9X17_HCHAR 13 /* horizontal spacing between characters */
#define FNT9X17_HBITS 9 /* actual number of bits per row per char */
extern char_row GPFAR fnt9x17[FNT_CHARS][FNT9X17_VBITS];

#define FNT13X25 2
#define FNT13X25_VCHAR 31 /* vertical spacing between characters */
#define FNT13X25_VBITS 25 /* actual number of rows of bits per char */
#define FNT13X25_HCHAR 19 /* horizontal spacing between characters */
#define FNT13X25_HBITS 13 /* actual number of bits per row per char */
extern char_row GPFAR fnt13x25[FNT_CHARS][FNT13X25_VBITS];


typedef unsigned char pixels;  /* the type of one set of 8 pixels in bitmap */
typedef pixels *bitmap[];  /* the bitmap */

extern bitmap *b_p;						/* global pointer to bitmap */
extern unsigned int b_currx, b_curry;	/* the current coordinates */
extern unsigned int b_xsize, b_ysize;	/* the size of the bitmap */
extern unsigned int b_planes;			/* number of color planes */
extern unsigned int b_psize;			/* size of each plane */
extern unsigned int b_rastermode;		/* raster mode rotates -90deg */
extern unsigned int b_linemask;			/* 16 bit mask for dotted lines */
extern unsigned int b_value;			/* colour of lines */
extern unsigned int b_hchar;			/* width of characters */
extern unsigned int b_hbits;			/* actual bits in char horizontally */
extern unsigned int b_vchar;			/* height of characters */
extern unsigned int b_vbits;			/* actual bits in char vertically */
extern unsigned int b_angle;			/* rotation of text */
extern char_box b_font[FNT_CHARS];		/* the current font */
extern unsigned int b_pattern[];
extern int b_maskcount;
extern unsigned int b_lastx, b_lasty;	/* last pixel set - used by b_line */


/* Prototypes from file "bitmap.c" */

void b_makebitmap __PROTO((unsigned int x, unsigned int y, unsigned int planes));
void b_freebitmap __PROTO((void));
void b_setpixel __PROTO((unsigned int x, unsigned int y, unsigned int value));
/* unused unsigned int b_getpixel __PROTO((unsigned int x, unsigned int y)); */
void b_line __PROTO((unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2));
void b_setmaskpixel __PROTO((unsigned int x, unsigned int y, unsigned int value));
/* void b_putc __PROTO((unsigned int x, unsigned int y, char c, unsigned int angle)); */
void b_charsize __PROTO((unsigned int size));
void b_setvalue __PROTO((unsigned int value));

void b_setlinetype __PROTO((int linetype));
void b_move __PROTO((unsigned int x, unsigned int y));
void b_vector __PROTO((unsigned int x, unsigned int y));
void b_put_text __PROTO((unsigned int x, unsigned int y, char *str));
int b_text_angle __PROTO((int ang));