--- /dev/null
+/* SCCS Id: @(#)pcvideo.h 3.3 94/06/07 */
+/* 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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