sys/msdos/pcvideo.h

   1 /* aNetHack 0.0.1       pcvideo.h       $ANH-Date: 1457207040 2016/03/05 19:44:00 $  $ANH-Branch: chasonr $:$ANH-Revision: 1.9 $ */
   2 /*   Copyright (c) aNetHack PC Development Team 1993, 1994           */
   3 /*   aNetHack may be freely redistributed.  See license for details. */
   4 /*                                                                  */
   5 /*
   6  * pcvideo.h - Hardware video support definitions and prototypes
   7  *
   8  *Edit History:
   9  *     Initial Creation              M. Allison      93/10/30
  10  *
  11  */
  12
  13 #ifndef PCVIDEO_H
  14 #define PCVIDEO_H
  15
  16 #include "portio.h"
  17
  18 #ifdef SCREEN_BIOS
  19 #if !defined(PC9800)
  20 #define MONO_CHECK /* Video BIOS can do the check       */
  21 #endif
  22 #endif
  23
  24 #ifdef SCREEN_DJGPPFAST
  25 /*# define MONO_CHECK           /* djgpp should be able to do check  */
  26 #endif
  27
  28 /*
  29  * PC interrupts
  30  */
  31 #ifdef PC9800
  32 #define CRT_BIOS 0x18
  33 #define DOS_EXT_FUNC 0xdc
  34 #define DIRECT_CON_IO 0x10
  35 #else
  36 #define VIDEO_BIOS 0x10
  37 #endif
  38 #define DOSCALL 0x21
  39
  40 /*
  41  * Video BIOS functions
  42  */
  43 #if defined(PC9800)
  44 #define SENSEMODE 0x0b /* Sense CRT Mode */
  45
  46 #define PUTCHAR 0x00      /* Put Character */
  47 #define SETATT 0x02       /* Set Attribute */
  48 #define SETCURPOS 0x03    /* Set Cursor Position */
  49 #define CURSOR_RIGHT 0x08 /* Move Cursor Right */
  50 #define CURSOR_LEFT 0x09  /* Move Cursor Left */
  51 #define SCREEN_CLEAR 0x0a /* Clear Screen */
  52 #define LINE_CLEAR 0x0b   /* Clear Line */
  53 #else
  54 #define SETCURPOS 0x02 /* Set Cursor Position */
  55 #endif
  56
  57 #define GETCURPOS 0x03  /* Get Cursor Position */
  58 #define GETMODE 0x0f    /* Get Video Mode */
  59 #define SETMODE 0x00    /* Set Video Mode */
  60 #define SETPAGE 0x05    /* Set Video Page */
  61 #define FONTINFO 0x1130 /* Get Font Info */
  62 #define SCROLL 0x06     /* Scroll or initialize window */
  63 #define PUTCHARATT 0x09 /* Write attribute & char at cursor */
  64
  65 /*
  66  * VGA Specific Stuff
  67  */
  68 #ifdef SCREEN_VGA
  69 /* #define HW_PANNING           /* Hardware panning enabled */
  70 #define USHORT unsigned short
  71 #define MODE640x480 0x0012 /* Switch to VGA 640 x 480 Graphics mode */
  72 #define MODETEXT 0x0003    /* Switch to Text mode 3 */
  73
  74 #ifdef HW_PANNING
  75 #define PIXELINC 16 /* How much to increment by when panning */
  76 /*#define PIXELINC 1    /* How much to increment by when panning */
  77 #define SCREENBYTES 128
  78 #define CharRows 30
  79 #define VERT_RETRACE                          \
  80     {                                         \
  81         while (!(inportb(crt_status) & 0x08)) \
  82             ;                                 \
  83     }
  84 #define VERT_RETRACE_END                     \
  85     {                                        \
  86         while ((inportb(crt_status) & 0x08)) \
  87             ;                                \
  88     }
  89 #else
  90 #define SCREENBYTES 80
  91 #endif
  92
  93 #define CharacterWidth 8
  94 #define SCREENHEIGHT 480
  95 #define SCREENWIDTH (SCREENBYTES * CharacterWidth)
  96 #define VIDEOSEG 0xa000
  97 #define FONT_PTR_SEGMENT 0x0000
  98 #define FONT_PTR_OFFSET 0x010C
  99 #define SCREENPLANES 4
 100 #define COLORDEPTH 16
 101 #define egawriteplane(n)    \
 102     {                       \
 103         outportb(0x3c4, 2); \
 104         outportb(0x3c5, n); \
 105     }
 106 #define egareadplane(n)     \
 107     {                       \
 108         outportb(0x3ce, 4); \
 109         outportb(0x3cf, n); \
 110     }
 111 #define col2x8(c) ((c) *8)
 112 #define col2x16(c) ((c) *16)
 113 #define col2x(c) ((c) *2)
 114 #define row2y(c) ((c) *16)
 115 #define MAX_ROWS_PER_CELL 16
 116 #define MAX_COLS_PER_CELL 16
 117 #define MAX_BYTES_PER_CELL 2 /* MAX_COLS_PER_CELL/8 */
 118 #define ROWS_PER_CELL MAX_ROWS_PER_CELL
 119 #define COLS_PER_CELL MAX_COLS_PER_CELL
 120 #define BYTES_PER_CELL MAX_BYTES_PER_CELL
 121
 122 struct cellplane {
 123     char image[MAX_ROWS_PER_CELL][MAX_BYTES_PER_CELL];
 124 };
 125
 126 struct planar_cell_struct {
 127     struct cellplane plane[SCREENPLANES];
 128 };
 129
 130 struct overview_cellplane {
 131     char image[MAX_ROWS_PER_CELL][1];
 132 };
 133
 134 struct overview_planar_cell_struct {
 135     struct overview_cellplane plane[SCREENPLANES];
 136 };
 137
 138 #endif /* SCREEN_VGA */
 139
 140 /*
 141  * Default color Indexes for hardware palettes
 142  *
 143  * Do not change the values below.
 144  * These are the color mappings defined by the particular video
 145  * hardware/mode.  You can rearrange the aNetHack color mappings at
 146  * run-time via the defaults.nh "videocolors" and "videoshades"
 147  * settings.
 148  *
 149  */
 150
 151 #if defined(SCREEN_BIOS) || defined(SCREEN_DJGPPFAST)
 152 #define M_BLACK 8
 153 #define M_WHITE 15
 154 #define M_GRAY 7 /* low-intensity white */
 155 #define M_RED 4
 156 #define M_GREEN 2
 157 #define M_BROWN 6 /* low-intensity yellow */
 158 #define M_BLUE 1
 159 #define M_MAGENTA 5
 160 #define M_CYAN 3
 161 #define M_ORANGE 12
 162 #define M_BRIGHTGREEN 10
 163 #define M_YELLOW 14
 164 #define M_BRIGHTBLUE 9
 165 #define M_BRIGHTMAGENTA 13
 166 #define M_BRIGHTCYAN 11
 167
 168 #define M_TEXT M_GRAY
 169 #define BACKGROUND_COLOR 1
 170 #define ATTRIB_NORMAL M_TEXT       /* Normal attribute */
 171 #define ATTRIB_INTENSE M_WHITE     /* Intense White */
 172 #define ATTRIB_MONO_NORMAL 0x01    /* Underlined,white */
 173 #define ATTRIB_MONO_UNDERLINE 0x01 /* Underlined,white */
 174 #define ATTRIB_MONO_BLINK 0x87     /* Flash bit, white */
 175 #define ATTRIB_MONO_REVERSE 0x70   /* Black on white */
 176 #endif                             /*SCREEN_BIOS || SCREEN_DJGPPFAST */
 177
 178 #if defined(SCREEN_VGA) || defined(SCREEN_8514)
 179 #define BACKGROUND_VGA_COLOR 1
 180 #define ATTRIB_VGA_NORMAL CLR_GRAY /* Normal attribute */
 181 #define ATTRIB_VGA_INTENSE 14      /* Intense White 94/06/07 palette chg*/
 182 #endif                             /*SCREEN_VGA || SCREEN_8514*/
 183
 184 #if defined(PC9800)
 185 static unsigned char attr98[CLR_MAX] = {
 186     0xe1, /*  0 white            */
 187     0x21, /*  1 blue             */
 188     0x81, /*  2 green            */
 189     0xa1, /*  3 cyan             */
 190     0x41, /*  4 red              */
 191     0x61, /*  5 magenta          */
 192     0xc1, /*  6 yellow           */
 193     0xe1, /*  7 white            */
 194     0xe1, /*  8 white            */
 195     0x25, /*  9 reversed blue    */
 196     0x85, /* 10 reversed green   */
 197     0xa5, /* 11 reversed cyan    */
 198     0x45, /* 12 reversed red     */
 199     0x65, /* 13 reversed magenta */
 200     0xc5, /* 14 reversed yellow  */
 201     0xe5, /* 15 reversed white   */
 202 };
 203 #endif
 204
 205 #ifdef SIMULATE_CURSOR
 206 #define CURSOR_HEIGHT 3 /* this should go - MJA */
 207 /* cursor styles */
 208 #define CURSOR_INVIS 0     /* cursor not visible at all            */
 209 #define CURSOR_FRAME 1     /* block around the current tile        */
 210 #define CURSOR_UNDERLINE 2 /* thin line at bottom of the tile      */
 211 #define CURSOR_CORNER 3    /* cursor visible at the 4 tile corners */
 212 #define NUM_CURSOR_TYPES 4 /* number of different cursor types     */
 213 #define CURSOR_DEFAULT_STYLE CURSOR_CORNER
 214 #define CURSOR_DEFAULT_COLOR M_GRAY
 215 /* global variables for cursor */
 216 extern int cursor_type;
 217 extern int cursor_flag;
 218 extern int cursor_color;
 219 #endif
 220
 221 /*
 222  *   Function Prototypes
 223  *
 224  */
 225
 226 #define E extern
 227
 228 /* ### video.c ### */
 229
 230 #ifdef SIMULATE_CURSOR
 231 E void NDECL(DrawCursor);
 232 E void NDECL(HideCursor);
 233 #endif
 234
 235 /* ### vidtxt.c ### */
 236
 237 #ifdef NO_TERMS
 238 E void NDECL(txt_backsp);
 239 E void NDECL(txt_clear_screen);
 240 E void FDECL(txt_cl_end, (int, int));
 241 E void NDECL(txt_cl_eos);
 242 E void NDECL(txt_get_scr_size);
 243 E void FDECL(txt_gotoxy, (int, int));
 244 E int NDECL(txt_monoadapt_check);
 245 E void NDECL(txt_nhbell);
 246 E void FDECL(txt_startup, (int *, int *));
 247 E void FDECL(txt_xputs, (const char *, int, int));
 248 E void FDECL(txt_xputc, (CHAR_P, int));
 249
 250 /* ### vidvga.c ### */
 251
 252 #ifdef SCREEN_VGA
 253 E void NDECL(vga_backsp);
 254 E void FDECL(vga_clear_screen, (int));
 255 E void FDECL(vga_cl_end, (int, int));
 256 E void FDECL(vga_cl_eos, (int));
 257 E int NDECL(vga_detect);
 258 #ifdef SIMULATE_CURSOR
 259 E void NDECL(vga_DrawCursor);
 260 #endif
 261 E void NDECL(vga_Finish);
 262 E char __far *NDECL(vga_FontPtrs);
 263 E void NDECL(vga_get_scr_size);
 264 E void FDECL(vga_gotoloc, (int, int));
 265 #ifdef POSITIONBAR
 266 E void FDECL(vga_update_positionbar, (char *));
 267 #endif
 268 #ifdef SIMULATE_CURSOR
 269 E void NDECL(vga_HideCursor);
 270 #endif
 271 E void NDECL(vga_Init);
 272 E void NDECL(vga_tty_end_screen);
 273 E void FDECL(vga_tty_startup, (int *, int *));
 274 E void FDECL(vga_xputs, (const char *, int, int));
 275 E void FDECL(vga_xputc, (CHAR_P, int));
 276 E void FDECL(vga_xputg, (int, int, unsigned));
 277 E void FDECL(vga_userpan, (BOOLEAN_P));
 278 E void FDECL(vga_overview, (BOOLEAN_P));
 279 E void FDECL(vga_traditional, (BOOLEAN_P));
 280 E void NDECL(vga_refresh);
 281 #endif /* SCREEN_VGA */
 282 #ifdef SCREEN_VESA
 283 E void NDECL(vesa_backsp);
 284 E void FDECL(vesa_clear_screen, (int));
 285 E void FDECL(vesa_cl_end, (int, int));
 286 E void FDECL(vesa_cl_eos, (int));
 287 E int NDECL(vesa_detect);
 288 #ifdef SIMULATE_CURSOR
 289 E void NDECL(vesa_DrawCursor);
 290 #endif
 291 E void NDECL(vesa_Finish);
 292 E void NDECL(vesa_get_scr_size);
 293 E void FDECL(vesa_gotoloc, (int, int));
 294 #ifdef POSITIONBAR
 295 E void FDECL(vesa_update_positionbar, (char *));
 296 #endif
 297 #ifdef SIMULATE_CURSOR
 298 E void NDECL(vesa_HideCursor);
 299 #endif
 300 E void NDECL(vesa_Init);
 301 E void NDECL(vesa_tty_end_screen);
 302 E void FDECL(vesa_tty_startup, (int *, int *));
 303 E void FDECL(vesa_xputs, (const char *, int, int));
 304 E void FDECL(vesa_xputc, (CHAR_P, int));
 305 E void FDECL(vesa_xputg, (int, int, unsigned));
 306 E void FDECL(vesa_userpan, (BOOLEAN_P));
 307 E void FDECL(vesa_overview, (BOOLEAN_P));
 308 E void FDECL(vesa_traditional, (BOOLEAN_P));
 309 E void NDECL(vesa_refresh);
 310 #endif /* SCREEN_VESA */
 311 #endif /* NO_TERMS   */
 312
 313 #undef E
 314
 315 #endif /* PCVIDEO_H  */
 316 /* pcvideo.h */