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/* SCCS Id: @(#)pcvideo.h 3.4 1994/06/07 */
/* Copyright (c) NetHack PC Development Team 1993, 1994 */
/* NetHack may be freely redistributed. See license for details. */
/* */
/*
* pcvideo.h - Hardware video support definitions and prototypes
*
*Edit History:
* Initial Creation M. Allison 93/10/30
*
*/
#ifndef PCVIDEO_H
#define PCVIDEO_H
#include "portio.h"
# ifdef SCREEN_BIOS
# if !defined(PC9800)
# define MONO_CHECK /* Video BIOS can do the check */
# endif
# endif
# ifdef SCREEN_DJGPPFAST
/*# define MONO_CHECK /* djgpp should be able to do check */
# endif
/*
* PC interrupts
*/
# ifdef PC9800
#define CRT_BIOS 0x18
#define DOS_EXT_FUNC 0xdc
#define DIRECT_CON_IO 0x10
# else
#define VIDEO_BIOS 0x10
# endif
#define DOSCALL 0x21
/*
* Video BIOS functions
*/
# if defined(PC9800)
#define SENSEMODE 0x0b /* Sense CRT Mode */
#define PUTCHAR 0x00 /* Put Character */
#define SETATT 0x02 /* Set Attribute */
#define SETCURPOS 0x03 /* Set Cursor Position */
#define CURSOR_RIGHT 0x08 /* Move Cursor Right */
#define CURSOR_LEFT 0x09 /* Move Cursor Left */
#define SCREEN_CLEAR 0x0a /* Clear Screen */
#define LINE_CLEAR 0x0b /* Clear Line */
# else
#define SETCURPOS 0x02 /* Set Cursor Position */
# endif
#define GETCURPOS 0x03 /* Get Cursor Position */
#define GETMODE 0x0f /* Get Video Mode */
#define SETMODE 0x00 /* Set Video Mode */
#define SETPAGE 0x05 /* Set Video Page */
#define FONTINFO 0x1130 /* Get Font Info */
#define SCROLL 0x06 /* Scroll or initialize window */
#define PUTCHARATT 0x09 /* Write attribute & char at cursor */
/*
* VGA Specific Stuff
*/
# ifdef SCREEN_VGA
/* #define HW_PANNING /* Hardware panning enabled */
#define USHORT unsigned short
#define MODE640x480 0x0012 /* Switch to VGA 640 x 480 Graphics mode */
#define MODETEXT 0x0003 /* Switch to Text mode 3 */
#ifdef HW_PANNING
#define PIXELINC 16 /* How much to increment by when panning */
/*#define PIXELINC 1 /* How much to increment by when panning */
#define SCREENBYTES 128
#define CharRows 30
#define VERT_RETRACE {while (!(inportb(crt_status) & 0x08)); }
#define VERT_RETRACE_END {while ( (inportb(crt_status) & 0x08)); }
#else
#define SCREENBYTES 80
#endif
#define CharacterWidth 8
#define SCREENHEIGHT 480
#define SCREENWIDTH (SCREENBYTES * CharacterWidth)
#define VIDEOSEG 0xa000
#define FONT_PTR_SEGMENT 0x0000
#define FONT_PTR_OFFSET 0x010C
#define SCREENPLANES 4
#define COLORDEPTH 16
#define egawriteplane(n) { outportb(0x3c4,2); outportb(0x3c5,n); }
#define egareadplane(n) { outportb(0x3ce,4); outportb(0x3cf,n); }
#define col2x8(c) ((c) * 8)
#define col2x16(c) ((c) * 16)
#define col2x(c) ((c) * 2)
#define row2y(c) ((c) * 16)
#define MAX_ROWS_PER_CELL 16
#define MAX_COLS_PER_CELL 16
#define MAX_BYTES_PER_CELL 2 /* MAX_COLS_PER_CELL/8 */
#define ROWS_PER_CELL MAX_ROWS_PER_CELL
#define COLS_PER_CELL MAX_COLS_PER_CELL
#define BYTES_PER_CELL MAX_BYTES_PER_CELL
struct cellplane {
char image[MAX_ROWS_PER_CELL][MAX_BYTES_PER_CELL];
};
struct planar_cell_struct {
struct cellplane plane[SCREENPLANES];
};
struct overview_cellplane {
char image[MAX_ROWS_PER_CELL][1];
};
struct overview_planar_cell_struct {
struct overview_cellplane plane[SCREENPLANES];
};
# endif /* SCREEN_VGA */
/*
* Default color Indexes for hardware palettes
*
* Do not change the values below.
* These are the color mappings defined by the particular video
* hardware/mode. You can rearrange the NetHack color mappings at
* run-time via the defaults.nh "videocolors" and "videoshades"
* settings.
*
*/
# if defined(SCREEN_BIOS) || defined(SCREEN_DJGPPFAST)
#define M_BLACK 8
#define M_WHITE 15
#define M_GRAY 7 /* low-intensity white */
#define M_RED 4
#define M_GREEN 2
#define M_BROWN 6 /* low-intensity yellow */
#define M_BLUE 1
#define M_MAGENTA 5
#define M_CYAN 3
#define M_ORANGE 12
#define M_BRIGHTGREEN 10
#define M_YELLOW 14
#define M_BRIGHTBLUE 9
#define M_BRIGHTMAGENTA 13
#define M_BRIGHTCYAN 11
#define M_TEXT M_GRAY
#define BACKGROUND_COLOR 0
#define ATTRIB_NORMAL M_TEXT /* Normal attribute */
#define ATTRIB_INTENSE M_WHITE /* Intense White */
#define ATTRIB_MONO_NORMAL 0x01 /* Underlined,white */
#define ATTRIB_MONO_UNDERLINE 0x01 /* Underlined,white */
#define ATTRIB_MONO_BLINK 0x87 /* Flash bit, white */
#define ATTRIB_MONO_REVERSE 0x70 /* Black on white */
# endif /*SCREEN_BIOS || SCREEN_DJGPPFAST */
# if defined(SCREEN_VGA) || defined(SCREEN_8514)
#define BACKGROUND_VGA_COLOR 0
#define ATTRIB_VGA_NORMAL CLR_GRAY /* Normal attribute */
#define ATTRIB_VGA_INTENSE 13 /* Intense White 94/06/07 palette chg*/
# endif /*SCREEN_VGA || SCREEN_8514*/
# if defined(PC9800)
static unsigned char attr98[CLR_MAX] = {
0xe1, /* 0 white */
0x21, /* 1 blue */
0x81, /* 2 green */
0xa1, /* 3 cyan */
0x41, /* 4 red */
0x61, /* 5 magenta */
0xc1, /* 6 yellow */
0xe1, /* 7 white */
0xe1, /* 8 white */
0x25, /* 9 reversed blue */
0x85, /* 10 reversed green */
0xa5, /* 11 reversed cyan */
0x45, /* 12 reversed red */
0x65, /* 13 reversed magenta */
0xc5, /* 14 reversed yellow */
0xe5, /* 15 reversed white */
};
# endif
# ifdef SIMULATE_CURSOR
#define CURSOR_HEIGHT 3 /* this should go - MJA */
/* cursor styles */
#define CURSOR_INVIS 0 /* cursor not visible at all */
#define CURSOR_FRAME 1 /* block around the current tile */
#define CURSOR_UNDERLINE 2 /* thin line at bottom of the tile */
#define CURSOR_CORNER 3 /* cursor visible at the 4 tile corners */
#define NUM_CURSOR_TYPES 4 /* number of different cursor types */
#define CURSOR_DEFAULT_STYLE CURSOR_CORNER
#define CURSOR_DEFAULT_COLOR M_GRAY
/* global variables for cursor */
extern int cursor_type;
extern int cursor_flag;
extern int cursor_color;
# endif
/*
* Function Prototypes
*
*/
#define E extern
/* ### video.c ### */
# ifdef SIMULATE_CURSOR
E void NDECL(DrawCursor);
E void NDECL(HideCursor);
# endif
/* ### vidtxt.c ### */
# ifdef NO_TERMS
E void NDECL(txt_backsp);
E void NDECL(txt_clear_screen);
E void FDECL(txt_cl_end,(int,int));
E void NDECL(txt_cl_eos);
E void NDECL(txt_get_scr_size);
E void FDECL(txt_gotoxy,(int,int));
E int NDECL(txt_monoadapt_check);
E void NDECL(txt_nhbell);
E void FDECL(txt_startup,(int*,int*));
E void FDECL(txt_xputs, (const char *, int, int));
E void FDECL(txt_xputc, (CHAR_P, int));
/* ### vidvga.c ### */
# ifdef SCREEN_VGA
E void NDECL(vga_backsp);
E void FDECL(vga_clear_screen,(int));
E void FDECL(vga_cl_end,(int,int));
E void FDECL(vga_cl_eos,(int));
E int NDECL(vga_detect);
# ifdef SIMULATE_CURSOR
E void NDECL(vga_DrawCursor);
# endif
E void FDECL(vga_DisplayCell, (struct planar_cell_struct *, int, int));
E void FDECL(vga_DisplayCell_O,
(struct overview_planar_cell_struct *, int, int));
E void NDECL(vga_Finish);
E char __far *NDECL(vga_FontPtrs);
E void NDECL(vga_get_scr_size);
E void FDECL(vga_gotoloc,(int,int));
# ifdef POSITIONBAR
E void FDECL(vga_update_positionbar, (char *));
# endif
# ifdef SIMULATE_CURSOR
E void NDECL(vga_HideCursor);
# endif
E void NDECL(vga_Init);
E void FDECL(vga_SwitchMode, (unsigned int));
E void FDECL(vga_SetPalette, (char *));
E void NDECL(vga_tty_end_screen);
E void FDECL(vga_tty_startup,(int*,int*));
E void FDECL(vga_WriteChar, (int, int, int, int));
E void FDECL(vga_WriteStr, (char *, int, int, int, int));
E void FDECL(vga_xputs, (const char *, int, int));
E void FDECL(vga_xputc, (CHAR_P, int));
E void FDECL(vga_xputg, (int, int, unsigned));
E void FDECL(vga_userpan, (BOOLEAN_P));
E void FDECL(vga_overview, (BOOLEAN_P));
E void FDECL(vga_traditional, (BOOLEAN_P));
E void NDECL(vga_refresh);
# endif /* SCREEN_VGA */
# endif /* NO_TERMS */
#undef E
#endif /* PCVIDEO_H */
/* pcvideo.h */
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