MS-DOS: Support no-tiles and no-graphics builds

In previous versions of NetHack, setting -DUSE_TILES enabled the tile
support, while setting -DSUPPRESS_GRAPHICS produced a NetHack that
would write its TTY output to standard output, and rely on ANSI.SYS or
similar to do screen control. (USE_TILES is now TILES_IN_GLYPHMAP.)

This change ensures that the current NetHack can be built the same
ways.

One twist is that previous NetHacks would drop all support for graphical
modes when tiles were not supported. Thus sys/msdos/vid{vga,vesa}.c have
very disordered use of TILES_IN_GLYPHMAP. There was no need to check
this. But now, the graphical modes also support Unicode. A non-tiled
build should have the graphical modes, with only the text functions
present, provided that ENHANCED_SYMBOLS is defined.

Some unused and locally used symbols were cleaned up along the way.

include/extern.h

@@ -1986,9 +1986,6 @@ extern void mplayer_talk(struct monst *) NONNULLARG1;
 #ifndef WIN32
 extern int tgetch(void);
 #endif
-#ifndef TOS
-extern char switchar(void);
-#endif
 #ifndef __GO32__
 extern long freediskspace(char *);
 #ifdef MSDOS
@@ -2424,6 +2421,9 @@ extern void gettty(void);
 extern void settty(const char *);
 extern void setftty(void);
 ATTRNORETURN extern void error(const char *, ...) PRINTF_F(1, 2) NORETURN;
+#ifdef ENHANCED_SYMBOLS
+extern void tty_utf8graphics_fixup(void);
+#endif
 #if defined(TIMED_DELAY) && defined(_MSC_VER)
 extern void msleep(unsigned);
 #endif

include/optlist.h

@@ -825,7 +825,7 @@ static int optfn_##a(int, int, boolean, char *, char *);
            (char *)0)
     NHOPTC(versinfo, Advanced, 80, opt_out, set_in_game,
            No, Yes, No, Yes, NoAlias, "extra information for 'showvers'")
-#ifdef MSDOS
+#if defined(MSDOS) && defined(NO_TERMS)
     NHOPTC(video, Advanced, 20, opt_in, set_in_config,
                 No, Yes, No, No, NoAlias, "method of video updating")
 #endif

include/pcconf.h

@@ -75,7 +75,7 @@
  */
 #ifndef SUPPRESS_GRAPHICS
 #if (defined(SCREEN_BIOS) || defined(SCREEN_DJGPPFAST)) && !defined(PC9800)
-#ifdef TILES_IN_GLYPHMAP
+#if defined(TILES_IN_GLYPHMAP) || defined(ENHANCED_SYMBOLS)
 #define SCREEN_VGA /* Include VGA graphics routines in the build */
 #define SCREEN_VESA
 #endif
@@ -288,6 +288,10 @@
 #endif
 #endif /* End of sanity check block */
 
+#if defined(MSDOS) && defined(SUPPRESS_GRAPHICS)
+#define NO_TERMCAP_HEADERS
+#endif
+
 #if defined(MSDOS) && defined(DLB)
 #define FILENAME_CMP stricmp /* case insensitive */
 #endif

src/glyphs.c

@@ -711,8 +711,10 @@ apply_customizations(
     struct customization_detail *details;
     struct symset_customization *sc;
     boolean at_least_one = FALSE,
-            do_colors = ((docustomize & do_custom_colors) != 0),
+            do_colors = ((docustomize & do_custom_colors) != 0);
-            do_symbols = ((docustomize & do_custom_symbols) != 0);
+#ifdef ENHANCED_SYMBOLS
+    boolean do_symbols = ((docustomize & do_custom_symbols) != 0);
+#endif
     int custs;
 
     for (custs = 0; custs < (int) custom_count; ++custs) {

src/wizcmds.c

@@ -1990,10 +1990,8 @@ wizcustom_callback(winid win, int glyphnum, char *id)
     extern glyph_map glyphmap[MAX_GLYPH];
     glyph_map *cgm;
     int clr = NO_COLOR;
-    char buf[BUFSZ], bufa[BUFSZ], bufb[BUFSZ], bufc[BUFSZ], bufd[BUFSZ],
+    char buf[BUFSZ], bufa[BUFSZ], bufb[BUFSZ], bufc[BUFSZ], bufu[BUFSZ];
-        bufu[BUFSZ];
     anything any;
-    uint8 *cp;
 
     if (win && id) {
         cgm = &glyphmap[glyphnum];
@@ -2009,9 +2007,11 @@ wizcustom_callback(winid win, int glyphnum, char *id)
             bufu[0] = '\0';
 #ifdef ENHANCED_SYMBOLS
             if (cgm->u && cgm->u->utf8str) {
+                uint8 *cp;
                 Sprintf(bufu, "U+%04lx", (unsigned long) cgm->u->utf32ch);
                 cp = cgm->u->utf8str;
                 while (*cp) {
+                    char bufd[BUFSZ];
                     Sprintf(bufd, " <%d>", (int) *cp);
                     Strcat(bufu, bufd);
                     cp++;

sys/msdos/Install.dos

@@ -96,11 +96,22 @@ II. There once was a time when people built NetHack right on their DOS machine.
 
         make WANT_WIN_TTY=1 WANT_WIN_CURSES=1 CROSS_TO_MSDOS=1 WANT_DOSVGA=1 package
 
+    For the TTY interface, use NO_TILES=1 to drop support for tiles. The
+    resulting TTY interface can still support Unicode if that is enabled
+    in include/config.h.
+
+    For the TTY interface, use NO_GRAPHICS=1 to drop all graphics support, and
+    build a NetHack that outputs through the standard output channel.  This
+    configuration requires ANSI.SYS, or an equivalent driver such as NANSI.SYS.
+    The curses interface will still use graphics if WANT_DOSVGA=1 is set.
+
+    NO_GRAPHICS=1 takes priority of NO_TILES=1.
+
     Result: The "make package" target will bundle all of the necessary
             components to run NetHack on msdos into a folder:
                 targets/msdos/pkg
             and then it zips the contents of that folder into:
-                targets/msdos/nh370dos.zip
+                targets/msdos/NH500DOS.ZIP
 
     Also note that building the msdos targets using the make command
     above, does not preclude you from building local linux or macOS

sys/msdos/msdos.c

@@ -57,7 +57,7 @@ unsigned long sys_random_seed(void);
 static char *getdta(void);
 #endif
 static unsigned int dos_ioctl(int, int, unsigned);
-#ifdef TILES_IN_GLYPHMAP
+#ifdef NO_TERMS
 extern boolean pckeys(unsigned char, unsigned char); /* pckeys.c */
 #endif
 
@@ -280,7 +280,7 @@ BIOSgetch(void)
             else
                 ch = kpad[scan - KEYPADLO].normal;
         }
-#ifdef TILES_IN_GLYPHMAP
+#ifdef NO_TERMS
         /* Check for special interface manipulation keys */
         if (pckeys(scan, shift)) {
             ch = 0xFF;
@@ -349,16 +349,6 @@ DOSgetch(void)
     return (ch);
 }
 
-char
-switchar(void)
-{
-    union REGS regs;
-
-    regs.x.ax = GETSWITCHAR;
-    intdos(&regs, &regs);
-    return regs.h.dl;
-}
-
 #if 0
 static long
 freediskspace(char *path)

sys/msdos/pckeys.c

@@ -8,16 +8,17 @@
 
 #include "hack.h"
 
-#ifdef MSDOS
+#if defined(MSDOS) && defined(NO_TERMS)
-#ifdef TILES_IN_GLYPHMAP
 #include "wintty.h"
 #include "pcvideo.h"
 
 boolean pckeys(unsigned char, unsigned char);
+#ifdef TILES_IN_GLYPHMAP
 static void userpan(enum vga_pan_direction pan);
 static void overview(boolean);
 static void traditional(boolean);
 static void refresh(void);
+#endif
 
 extern struct WinDesc *wins[MAXWIN]; /* from wintty.c */
 extern boolean inmap;                /* from video.c */
@@ -34,9 +35,15 @@ extern boolean inmap;                /* from video.c */
 boolean
 pckeys(unsigned char scancode, unsigned char shift)
 {
+#ifdef TILES_IN_GLYPHMAP
     boolean opening_dialog;
 
     opening_dialog = svp.pl_character[0] ? FALSE : TRUE;
+#endif
+
+#ifndef TILES_IN_GLYPHMAP
+    nhUse(shift);
+#endif
     switch (scancode) {
 #ifdef SIMULATE_CURSOR
     case 0x3d: /* F3 = toggle cursor type */
@@ -47,6 +54,7 @@ pckeys(unsigned char scancode, unsigned char shift)
         DrawCursor();
         break;
 #endif
+#ifdef TILES_IN_GLYPHMAP
     case 0x74: /* Control-right_arrow = scroll horizontal to right */
         if ((shift & CTRL) && iflags.tile_view && !opening_dialog)
             userpan(pan_right);
@@ -83,12 +91,14 @@ pckeys(unsigned char scancode, unsigned char shift)
             refresh();
         }
         break;
+#endif /* TILES_IN_GLYPHMAP */
     default:
         return FALSE;
     }
     return TRUE;
 }
 
+#ifdef TILES_IN_GLYPHMAP
 static void
 userpan(enum vga_pan_direction pan)
 {
@@ -141,6 +151,6 @@ refresh(void)
 #endif
 }
 #endif /* TILES_IN_GLYPHMAP */
-#endif /* MSDOS */
+#endif /* MSDOS && NO_TERMS */
 
 /*pckeys.c*/

sys/msdos/pcvideo.h

@@ -237,12 +237,12 @@ extern void HideCursor(void);
 
 /* ### vidtxt.c ### */
 
+extern void txt_get_scr_size(void);
 #ifdef NO_TERMS
 extern void txt_backsp(void);
 extern void txt_clear_screen(void);
 extern void txt_cl_end(int, int);
 extern void txt_cl_eos(void);
-extern void txt_get_scr_size(void);
 extern void txt_gotoxy(int, int);
 extern int txt_monoadapt_check(void);
 extern void txt_nhbell(void);
@@ -267,7 +267,6 @@ extern void vga_show_cursor(void);
 extern void vga_DrawCursor(void);
 #endif
 extern void vga_Finish(void);
-extern char __far *vga_FontPtrs(void);
 extern void vga_get_scr_size(void);
 extern void vga_gotoloc(int, int);
 #ifdef POSITIONBAR

sys/msdos/video.c

@@ -132,17 +132,17 @@ void cmov(int, int);
 void nocmov(int, int);
 static void init_ttycolor(void);
 
-int savevmode;               /* store the original video mode in here */
+#if defined(SCREEN_VGA) || defined(SCREEN_VESA)
 int curcol, currow;          /* graphics mode current cursor locations */
+#endif
 int g_attribute;             /* Current attribute to use */
-int monoflag;                /* 0 = not monochrome, else monochrome */
+static int monoflag;         /* 0 = not monochrome, else monochrome */
 int inversed;
 int attrib_text_normal;      /* text mode normal attribute */
 int attrib_gr_normal;        /* graphics mode normal attribute */
 int attrib_text_intense;     /* text mode intense attribute */
 int attrib_gr_intense;       /* graphics mode intense attribute */
 uint32 curframecolor = NO_COLOR;   /* current background text color */
-boolean traditional = FALSE; /* traditional TTY character mode */
 boolean inmap = FALSE;       /* in the map window */
 char ttycolors[CLR_MAX]; /* also used/set in options.c */
 
@@ -183,8 +183,8 @@ term_curs_set(int visibility)
 #ifdef SCREEN_VESA
         } else if (iflags.usevesa) {
             vesa_hide_cursor();
-        }
 #endif
+        }
     } else if (visibility) {
         if (!iflags.grmode) {
             txt_show_cursor();
@@ -195,8 +195,8 @@ term_curs_set(int visibility)
 #ifdef SCREEN_VESA
         } else if (iflags.usevesa) {
             vesa_show_cursor();
-        }
 #endif
+        }
     }
     vis = visibility;
 }
@@ -255,16 +255,16 @@ void cl_end(void) /* clear to end of line */
 
 void cl_eos(void) /* clear to end of screen */
 {
-    int cy = (int) ttyDisplay->cury + 1;
-
     if (!iflags.grmode) {
         txt_cl_eos();
 #ifdef SCREEN_VGA
     } else if (iflags.usevga) {
+        int cy = (int) ttyDisplay->cury + 1;
         vga_cl_eos(cy);
 #endif
 #ifdef SCREEN_VESA
     } else if (iflags.usevesa) {
+        int cy = (int) ttyDisplay->cury + 1;
         vesa_cl_eos(cy);
 #endif
     }
@@ -683,6 +683,7 @@ xputc(int ch) /* write out character (and attribute) */
 }
 
 /* write out a glyph picture at current location */
+#ifdef TILES_IN_GLYPHMAP
 void xputg(const glyph_info *glyphinfo, const glyph_info *bkglyphinfo)
 {
     if (!iflags.grmode || !iflags.tile_view) {
@@ -697,6 +698,7 @@ void xputg(const glyph_info *glyphinfo, const glyph_info *bkglyphinfo)
 #endif
     }
 }
+#endif /* TILES_IN_GLYPHMAP */
 
 #ifdef POSITIONBAR
 void
@@ -731,6 +733,8 @@ adjust_cursor_flags(struct WinDesc *cw)
         cursor_flag = 1;
     }
 #endif /* 0 */
+#else
+    nhUse(cw);
 #endif /* SIMULATE_CURSOR */
 }
 
@@ -796,9 +800,9 @@ HideCursor(void)
 /* assign_videocolors() is prototyped in extern.h */
 /* assign_video()       is prototyped in extern.h */
 
-int shadeflag; /* shades are initialized */
+static int shadeflag; /* shades are initialized */
-int colorflag; /* colors are initialized */
+static int colorflag; /* colors are initialized */
-const char *schoice[3] = { "dark", "normal", "light" };
+static const char *schoice[3] = { "dark", "normal", "light" };
 const char *shade[3];
 #endif /* VIDEOSHADES */
 
@@ -1068,6 +1072,7 @@ assign_video(char *sopt)
     return 1;
 }
 
+#ifdef TILES_IN_GLYPHMAP
 void
 tileview(boolean enable)
 {
@@ -1080,6 +1085,7 @@ tileview(boolean enable)
         vesa_traditional(enable ? FALSE : TRUE);
 #endif
 }
+#endif /* TILES_IN_GLYPHMAP */
 #endif /* NO_TERMS  */
 
 #else  /* STUBVIDEO */

sys/msdos/vidtxt.c

@@ -109,7 +109,7 @@ txt_get_scr_size(void)
 void txt_gotoxy(int, int);
 
 #if defined(SCREEN_BIOS) && !defined(PC9800)
-void txt_get_cursor(int *, int *);
+static void txt_get_cursor(int *, int *);
 #endif
 
 #ifdef SCREEN_DJGPPFAST
@@ -401,7 +401,7 @@ void txt_xputc(char ch, int attr)
  *
  * This is implemented as a macro under DJGPPFAST.
  */
-void txt_get_cursor(int *x, int *y)
+static void txt_get_cursor(int *x, int *y)
 {
     union REGS regs;
 

sys/msdos/vidvesa.c

@@ -15,12 +15,22 @@
 #include "pctiles.h"
 #include "vesa.h"
 #include "wintty.h"
-#include "tileset.h"
 #include "font.h"
 
+#ifdef TILES_IN_GLYPHMAP
+#include "tileset.h"
+#else
+/* For the palette */
+struct Pixel {
+    unsigned char r, g, b, a;
+};
+#endif
+
 #define FIRST_TEXT_COLOR 240
 
+#ifdef TILES_IN_GLYPHMAP
 extern int total_tiles_used, Tile_corr, Tile_unexplored;  /* from tile.c */
+#endif
 struct VesaCharacter {
     uint32 colour, bgcolour;
     uint32 chr;
@@ -37,8 +47,10 @@ static unsigned long vesa_MakeColor(struct Pixel);
 static void vesa_FillRect(unsigned left, unsigned top, unsigned width,
                           unsigned height, unsigned color);
 
+#ifdef TILES_IN_GLYPHMAP
 static void vesa_redrawmap(void);
 static void vesa_cliparound(int, int);
+#endif
 #if 0
 static void decal_packed(const struct TileImage *tile, unsigned special);
 #endif
@@ -47,7 +59,9 @@ static void vesa_SetViewPort(void);
 static boolean vesa_SetPalette(const struct Pixel *);
 static boolean vesa_SetHardPalette(const struct Pixel *);
 static boolean vesa_SetSoftPalette(const struct Pixel *);
+#ifdef TILES_IN_GLYPHMAP
 static void vesa_DisplayCell(int, int, int);
+#endif
 static unsigned vesa_FindMode(unsigned long mode_addr, unsigned bits);
 static void vesa_WriteChar(uint32, int, int, uint32);
 static void vesa_WriteCharXY(uint32, int, int, uint32);
@@ -60,8 +74,10 @@ static unsigned long vesa_DoublePixels(unsigned long);
 static unsigned long vesa_TriplePixels(unsigned long);
 static void vesa_WriteStr(const char *, int, int, int, int);
 static unsigned char __far *vesa_FontPtrs(void);
+#ifdef TILES_IN_GLYPHMAP
 static unsigned char *vesa_tile(unsigned);
 static unsigned char *vesa_oview_tile(unsigned);
+#endif
 /* static void vesa_process_tile(struct TileImage *tile); */
 
 #ifdef POSITIONBAR
@@ -84,6 +100,7 @@ extern boolean inmap;           /* in the map window */
 
 static unsigned char __far *font;
 
+#ifdef TILES_IN_GLYPHMAP
 static struct map_struct {
     int glyph;
     uint32 ch;
@@ -108,10 +125,13 @@ static struct map_struct {
                 map[y][x].inverse = 0;                          \
             }                                                   \
     }
+#endif /* TILES_IN_GLYPHMAP */
 #define TOP_MAP_ROW 1
 
+#ifdef TILES_IN_GLYPHMAP
 static int viewport_cols = 40;
 static int viewport_rows = ROWNO;
+#endif
 
 static const struct Pixel defpalette[] = {    /* Colors for text and the position bar */
         { 0x00, 0x00, 0x00, 0xff }, /* CLR_BLACK */
@@ -158,8 +178,10 @@ static unsigned char vesa_blue_shift;
 static unsigned long vesa_palette[256];
 static unsigned vesa_char_width = 8, vesa_char_height = 16;
 static unsigned vesa_oview_width, vesa_oview_height;
+#ifdef TILES_IN_GLYPHMAP
 static unsigned char **vesa_tiles;
 static unsigned char **vesa_oview_tiles;
+#endif
 static struct BitmapFont *vesa_font;
 
 #ifdef SIMULATE_CURSOR
@@ -564,8 +586,10 @@ void
 vesa_clear_screen(int colour)
 {
     vesa_FillRect(0, 0, vesa_x_res, vesa_y_res, colour);
+#ifdef TILES_IN_GLYPHMAP
     if (iflags.tile_view)
         vesa_clearmap();
+#endif
     vesa_gotoloc(0, 0); /* is this needed? */
 }
 
@@ -893,6 +917,7 @@ vesa_redrawmap(void)
 #endif /* TILES_IN_GLYPHMAP && CLIPPING */
 
 
+#ifdef TILES_IN_GLYPHMAP
 void
 vesa_userpan(enum vga_pan_direction pan)
 {
@@ -1040,6 +1065,7 @@ decal_packed(const struct TileImage *gp, unsigned special)
     }
 }
 #endif
+#endif /* TILES_IN_GLYPHMAP */
 
 DISABLE_WARNING_FORMAT_NONLITERAL
 
@@ -1055,7 +1081,9 @@ vesa_Init(void)
 {
     static boolean inited = FALSE;
     const struct Pixel *paletteptr;
+#ifdef TILES_IN_GLYPHMAP
     const char *tile_file;
+#endif
     const char *font_name;
     int tilefailure = 0;
 
@@ -1089,11 +1117,16 @@ vesa_Init(void)
         /* term_clear_screen() */ /* not vesa_clear_screen() */
         return;
     }
+    paletteptr = get_palette();
+#else
+    /* This isn't actually used; it just keeps paletteptr from being NULL,
+     * so an 8 bit color mode will work */
+    paletteptr = defpalette;
 #endif
 
     vesa_mode = 0xFFFF; /* might want an 8 bit mode after loading tiles */
     vesa_detect();
-    if (vesa_mode == 0xFFFF || (vesa_pixel_size == 8 && get_palette() == NULL)) {
+    if (vesa_mode == 0xFFFF || (vesa_pixel_size == 8 && paletteptr == NULL)) {
         raw_printf("%s (%d)", "Reverting to TTY mode, no VESA mode available.",
                    tilefailure);
         wait_synch();
@@ -1108,25 +1141,26 @@ vesa_Init(void)
 
     vesa_SwitchMode(vesa_mode);
     vesa_SetViewPort();
+#ifdef TILES_IN_GLYPHMAP
     windowprocs.win_cliparound = vesa_cliparound;
+#endif
     if (vesa_pixel_size > 8) {
         windowprocs.wincap2 |= WC2_EXTRACOLORS;
     }
 #ifdef TILES_IN_GLYPHMAP
-    paletteptr = get_palette();
     iflags.tile_view = TRUE;
     iflags.over_view = FALSE;
-#else
-    paletteptr = defpalette;
 #endif
     vesa_SetPalette(paletteptr);
     g_attribute = attrib_gr_normal;
     font = vesa_FontPtrs();
     term_clear_screen();
+#ifdef TILES_IN_GLYPHMAP
     clipx = 0;
     clipxmax = clipx + (viewport_cols - 1);
     clipy = 0;
     clipymax = clipy + (viewport_rows - 1);
+#endif
 
     /* Load a font of size appropriate to the screen size */
     if (vesa_x_res >= 1280 && vesa_y_res >= 960)
@@ -1185,15 +1219,18 @@ vesa_Init(void)
     }
 
     /* Process tiles for the current video mode */
+#ifdef TILES_IN_GLYPHMAP
     vesa_tiles = (unsigned char **) alloc(total_tiles_used * sizeof(void *));
     memset(vesa_tiles, 0, total_tiles_used * sizeof(void *));
     vesa_oview_tiles = (unsigned char **) alloc(total_tiles_used * sizeof(void *));
     memset(vesa_oview_tiles, 0, total_tiles_used * sizeof(void *));
     set_tile_type(vesa_pixel_size > 8);
+#endif
 }
 
 RESTORE_WARNING_FORMAT_NONLITERAL
 
+#ifdef TILES_IN_GLYPHMAP
 /* Return processed pixels for a normal tile */
 static unsigned char *
 vesa_tile(unsigned index)
@@ -1277,11 +1314,13 @@ vesa_oview_tile(unsigned index)
 
     return vesa_oview_tiles[index];
 }
+#endif /* TILES_IN_GLYPHMAP */
 
 /* Set the size of the map viewport */
 static void
 vesa_SetViewPort(void)
 {
+#ifdef TILES_IN_GLYPHMAP
     unsigned y_reserved = (TOP_MAP_ROW + 5) * vesa_char_height;
     unsigned y_map = vesa_y_res - y_reserved;
 
@@ -1289,6 +1328,7 @@ vesa_SetViewPort(void)
     viewport_rows = y_map / iflags.wc_tile_height;
     if (viewport_cols > COLNO) viewport_cols = COLNO;
     if (viewport_rows > ROWNO) viewport_rows = ROWNO;
+#endif
 }
 
 /*
@@ -1340,6 +1380,7 @@ vesa_SwitchMode(unsigned mode)
 void
 vesa_Finish(void)
 {
+#ifdef TILES_IN_GLYPHMAP
     int i;
 
     for (i = 0; i < total_tiles_used; ++i) {
@@ -1349,6 +1390,7 @@ vesa_Finish(void)
     free(vesa_tiles);
     free(vesa_oview_tiles);
     free_tiles();
+#endif
     vesa_SwitchMode(MODETEXT);
     windowprocs.win_cliparound = tty_cliparound;
     g_attribute = attrib_text_normal;
@@ -1897,6 +1939,7 @@ vesa_TriplePixels(unsigned long fnt)
  * not the x,y pixel location.
  *
  */
+#ifdef TILES_IN_GLYPHMAP
 static void
 vesa_DisplayCell(int tilenum, int col, int row)
 {
@@ -1932,6 +1975,7 @@ vesa_DisplayCell(int tilenum, int col, int row)
         tptr += p_row_width;
     }
 }
+#endif /* TILES_IN_GLYPHMAP */
 
 /*
  * Write the character string pointed to by 's', whose maximum length
@@ -2009,6 +2053,8 @@ vesa_SetHardPalette(const struct Pixel *palette)
         p2[i*4 + 1] = palette[i].g >> shift;
         p2[i*4 + 2] = palette[i].r >> shift;
     }
+#else
+    nhUse(palette);
 #endif
     for (i = FIRST_TEXT_COLOR; i < 256; ++i) {
         p2[i*4 + 0] = defpalette[i-FIRST_TEXT_COLOR].b >> shift;
@@ -2077,6 +2123,8 @@ vesa_SetSoftPalette(const struct Pixel *palette)
             ++p;
         }
     }
+#else
+    nhUse(palette);
 #endif
     p = defpalette;
     for (i = FIRST_TEXT_COLOR; i < 256; ++i) {
@@ -2199,17 +2247,25 @@ positionbar(void)
 void
 vesa_DrawCursor(void)
 {
+#ifdef TILES_IN_GLYPHMAP
     static boolean last_inmap = FALSE;
+#endif
     unsigned x, y, left, top, right, bottom, width, height;
+#ifdef TILES_IN_GLYPHMAP
     boolean isrogue = Is_rogue_level(&u.uz);
     boolean halfwidth =
         (isrogue || iflags.over_view || iflags.traditional_view || !inmap);
+#else
+    const boolean halfwidth = TRUE;
+#endif
     int curtyp;
 
+#ifdef TILES_IN_GLYPHMAP
     if (inmap && !last_inmap) {
         vesa_redrawmap();
     }
     last_inmap = inmap;
+#endif
 
     if (!cursor_type && inmap)
         return; /* CURSOR_INVIS - nothing to do */
@@ -2232,9 +2288,12 @@ vesa_DrawCursor(void)
         y -= clipy;
     }
     /* convert to pixels */
+#ifdef TILES_IN_GLYPHMAP
     if (!inmap || iflags.traditional_view) {
+#endif
         width = vesa_char_width;
         height = vesa_char_height;
+#ifdef TILES_IN_GLYPHMAP
     } else if (iflags.over_view) {
         width = vesa_oview_width;
         height = vesa_oview_height;
@@ -2242,6 +2301,7 @@ vesa_DrawCursor(void)
         width = iflags.wc_tile_width;
         height = iflags.wc_tile_height;
     }
+#endif
     left = x * width  + vesa_x_center;
     top  = y * height + vesa_y_center;
     if (y >= TOP_MAP_ROW) {
@@ -2315,9 +2375,13 @@ void
 vesa_HideCursor(void)
 {
     unsigned x, y, left, top, width, height;
+#ifdef TILES_IN_GLYPHMAP
     boolean isrogue = Is_rogue_level(&u.uz);
     boolean halfwidth =
         (isrogue || iflags.over_view || iflags.traditional_view || !inmap);
+#else
+    const boolean halfwidth = TRUE;
+#endif
 
     if (!cursor_type && inmap)
         return; /* CURSOR_INVIS - nothing to do */
@@ -2336,9 +2400,12 @@ vesa_HideCursor(void)
         y -= clipy;
     }
     /* convert to pixels */
+#ifdef TILES_IN_GLYPHMAP
     if (!inmap || iflags.traditional_view) {
+#endif
         width = vesa_char_width;
         height = vesa_char_height;
+#ifdef TILES_IN_GLYPHMAP
     } else if (iflags.over_view) {
         width = vesa_oview_width;
         height = vesa_oview_height;
@@ -2346,6 +2413,7 @@ vesa_HideCursor(void)
         width = iflags.wc_tile_width;
         height = iflags.wc_tile_height;
     }
+#endif
     left = x * width  + vesa_x_center;
     top  = y * height + vesa_y_center;
     if (y >= TOP_MAP_ROW) {

sys/msdos/vidvga.c

@@ -10,9 +10,17 @@
 #ifdef SCREEN_VGA /* this file is for SCREEN_VGA only    */
 #include "pcvideo.h"
 #include "tile.h"
-#include "tileset.h"
 #include "font.h"
 
+#ifdef TILES_IN_GLYPHMAP
+#include "tileset.h"
+#else
+/* For the palette */
+struct Pixel {
+    unsigned char r, g, b, a;
+};
+#endif
+
 #include <dos.h>
 #include "wintty.h"
 
@@ -109,28 +117,35 @@ void vga_backsp(void);
 #ifdef SCROLLMAP
 static void vga_scrollmap(boolean);
 #endif
+#ifdef TILES_IN_GLYPHMAP
 static void vga_redrawmap(boolean);
 static void vga_cliparound(int, int);
 static void decal_planar(struct planar_cell_struct *, unsigned);
+#endif
 
 #ifdef POSITIONBAR
 static void positionbar(void);
 static void vga_special(int, int, int);
 #endif
 
+#ifdef TILES_IN_GLYPHMAP
 static void vga_DisplayCell(struct planar_cell_struct *, int, int);
 static void vga_DisplayCell_O(struct overview_planar_cell_struct *, int,
                               int);
+#endif
 static void vga_SwitchMode(unsigned int);
 static void vga_SetPalette(const struct Pixel *);
 static void vga_WriteChar(uint32, int, int, int);
 static void vga_GetBitmap(uint32, unsigned char *);
 static void vga_WriteStr(char *, int, int, int, int);
+static char __far *vga_FontPtrs(void);
 
+#ifdef TILES_IN_GLYPHMAP
 static void read_planar_tile(unsigned, struct planar_cell_struct *);
 static void read_planar_tile_O(unsigned,
                                struct overview_planar_cell_struct *);
 static void read_tile_indexes(unsigned, unsigned char (*)[TILE_X]);
+#endif
 
 extern int clipx, clipxmax; /* current clipping column from wintty.c */
 extern boolean clipping;    /* clipping on? from wintty.c */
@@ -156,6 +171,7 @@ static struct BitmapFont *psf_font;
 static char *screentable[SCREENHEIGHT];
 
 static const struct Pixel *paletteptr;
+#ifdef TILES_IN_GLYPHMAP
 static struct map_struct {
     int glyph;
     uint32 ch;
@@ -180,11 +196,14 @@ extern int total_tiles_used, Tile_corr, Tile_unexplored;  /* from tile.c */
                 map[y][x].tileidx = Tile_unexplored;            \
             }                                                   \
     }
+#endif /* TILES_IN_GLYPHMAP */
 #define TOP_MAP_ROW 1
 
+#ifdef TILES_IN_GLYPHMAP
 static const int vgacmap[CLR_MAX] = {
     1, 4, 6, 10, 5, 9, 0, 15,
     12, 3, 7, 8, 2, 9, 0, 14 };
+#endif
 static const int textcmap[CLR_MAX] = {
     1, 4, 6, 10, 5, 9, 0, 15,
     12, 3, 7, 8, 2, 11, 13, 14 };
@@ -214,12 +233,13 @@ static const struct Pixel text_palette[] = {
         };
 
 #ifndef ALTERNATE_VIDEO_METHOD
-int vp[SCREENPLANES] = { 8, 4, 2, 1 };
+static int vp[SCREENPLANES] = { 8, 4, 2, 1 };
 #endif
-int vp2[SCREENPLANES] = { 1, 2, 4, 8 };
 
+#ifdef TILES_IN_GLYPHMAP
 static struct planar_cell_struct **cell_cache;
 static struct overview_planar_cell_struct **cell_cache_O;
+#endif
 
 /* static int  g_attribute; */ /* Current attribute to use */
 
@@ -260,8 +280,10 @@ vga_clear_screen(int colour)
         WRITE_ABSOLUTE_DWORD(&pch[j], 0x00000000);
     }
     egawriteplane(15);
+#ifdef TILES_IN_GLYPHMAP
     if (iflags.tile_view)
         vga_clearmap();
+#endif
     vga_gotoloc(0, 0); /* is this needed? */
 }
 
@@ -534,6 +556,7 @@ vga_redrawmap(boolean clearfirst)
 }
 #endif /* TILES_IN_GLYPHMAP && CLIPPING */
 
+#ifdef TILES_IN_GLYPHMAP
 void
 vga_userpan(enum vga_pan_direction pan)
 {
@@ -774,6 +797,7 @@ decal_planar(struct planar_cell_struct *gpcs UNUSED, unsigned special)
     } else if (special & MG_RIDDEN) {
     }
 }
+#endif /* TILES_IN_GLYPHMAP */
 
 /*
  * Open tile files,
@@ -834,7 +858,9 @@ vga_Init(void)
         }
     }
     vga_SwitchMode(MODE640x480);
+#ifdef TILES_IN_GLYPHMAP
     windowprocs.win_cliparound = vga_cliparound;
+#endif
     /*     vga_NoBorder(BACKGROUND_VGA_COLOR); */ /* Not needed after palette
                                                      mod */
 #ifdef TILES_IN_GLYPHMAP
@@ -904,6 +930,7 @@ vga_SwitchMode(unsigned int mode)
 void
 vga_Finish(void)
 {
+#ifdef TILES_IN_GLYPHMAP
     int i;
 
     free_tiles();
@@ -915,6 +942,7 @@ vga_Finish(void)
     cell_cache = NULL;
     free(cell_cache_O);
     cell_cache_O = NULL;
+#endif
     vga_SwitchMode(MODETEXT);
     windowprocs.win_cliparound = tty_cliparound;
     g_attribute = attrib_text_normal;
@@ -954,7 +982,7 @@ vga_NoBorder(int bc)
  * address of the appropriate character definition table for
  * the current graphics mode into interrupt vector 0x43 (0000:010C).
  */
-char __far *
+static char __far *
 vga_FontPtrs(void)
 {
     USHORT __far *tmp;
@@ -1109,6 +1137,7 @@ vga_GetBitmap(uint32 chr, unsigned char *bitmap)
     }
 }
 
+#ifdef TILES_IN_GLYPHMAP
 /*
  * This is the routine that displays a high-res "cell" pointed to by 'gp'
  * at the desired location (col,row).
@@ -1172,6 +1201,7 @@ vga_DisplayCell_O(struct overview_planar_cell_struct *gpcs, int col, int row)
     }
     egawriteplane(15);
 }
+#endif /* TILES_IN_GLYPHMAP */
 
 /*
  * Write the character string pointed to by 's', whose maximum length
@@ -1421,9 +1451,13 @@ vga_DrawCursor(void)
     unsigned char first, second;
     /* char on[2] =  {0xFF,0xFF}; */
     /* char off[2] = {0x00,0x00}; */
+#ifdef TILES_IN_GLYPHMAP
     boolean isrogue = Is_rogue_level(&u.uz);
     boolean singlebyte =
         (isrogue || iflags.over_view || iflags.traditional_view || !inmap);
+#else
+    const boolean singlebyte = TRUE;
+#endif
     int curtyp;
 
     if (!cursor_type && inmap)
@@ -1633,9 +1667,13 @@ vga_HideCursor(void)
     int i, pixx, pixy, x, y;
     char __far *tmp1;
     char __far *tmp2;
+#ifdef TILES_IN_GLYPHMAP
     boolean isrogue = Is_rogue_level(&u.uz);
     boolean singlebyte =
         (isrogue || iflags.over_view || iflags.traditional_view || !inmap);
+#else
+    const boolean singlebyte = TRUE;
+#endif
     int curtyp;
 
     if (inmap && !cursor_type)

sys/share/pctty.c

@@ -53,6 +53,13 @@ setftty(void)
     term_start_screen();
 }
 
+#ifdef ENHANCED_SYMBOLS
+void
+tty_utf8graphics_fixup(void)
+{
+}
+#endif
+
 #if defined(TIMED_DELAY) && defined(_MSC_VER)
 void
 msleep(unsigned mseconds)

sys/unix/hints/include/cross-post.500

@@ -50,7 +50,7 @@ $(DOSFONT)/ter-u32b.psf: $(FONTTOP)/ter-u32b.bdf $(DOSFONT)/nh-u32b.bdf $(DOSFON
 #
 .PHONY: dodata dospkg dosfonts
 dosfonts: $(FONTTARGETS)
-dospkg: dodata dosfonts $(GAMEBIN) $(TARGETPFX)recover.exe ../dat/nhtiles.bmp
+dospkg: dodata dosfonts $(GAMEBIN) $(TARGETPFX)recover.exe $(NHTILES)
 	$(TARGET_STUBEDIT) $(GAMEBIN) minstack=2048K
 	mkdir -p $(TARGETPFX)pkg
 	cp $(GAMEBIN) $(TARGETPFX)pkg/NETHACK.EXE
@@ -58,7 +58,7 @@ dospkg: dodata dosfonts $(GAMEBIN) $(TARGETPFX)recover.exe ../dat/nhtiles.bmp
 	-cp $(SFCTOOLBIN) $(TARGETPFX)pkg/SFCTOOL.EXE
 	cp ../dat/nhdat $(TARGETPFX)pkg/NHDAT
 	cp ../dat/license $(TARGETPFX)pkg/LICENSE
-	cp ../dat/nhtiles.bmp $(TARGETPFX)pkg/NHTILES.BMP
+	-cp ../dat/nhtiles.bmp $(TARGETPFX)pkg/NHTILES.BMP
 	cp ../dat/symbols $(TARGETPFX)pkg/SYMBOLS
 	cp ../sys/share/NetHack.cnf $(TARGETPFX)pkg/NETHACK.CNF
 	cp ../sys/msdos/sysconf $(TARGETPFX)pkg/SYSCONF

sys/unix/hints/include/cross-pre2.500

@@ -177,8 +177,23 @@ MSDOS_GPP_CFLAGS = -Wall -Wextra -Wno-missing-field-initializers -Wreturn-type \
 	-Wunused -Wformat -Wswitch -Wshadow -Wwrite-strings -pedantic \
 	-Wmissing-declarations -Wformat-nonliteral -Wunreachable-code \
 	-Wno-maybe-uninitialized
+ifdef NO_GRAPHICS
+    MSDOS_GRAPH_CONFIG = -DSUPPRESS_GRAPHICS
+    # Curses will need the fonts, but not font.c
+    ifndef WANT_DOSVGA
+        SKIP_FONTS = 1
+    endif
+    SKIP_FONT_C = 1
+    SKIP_TILES = 1
+else ifdef NO_TILES
+    MSDOS_GRAPH_CONFIG =
+    # without SKIP_FONT_C; if ENHANCED_SYMBOLS is set, we'll need the fonts
+    SKIP_TILES = 1
+else
+    MSDOS_GRAPH_CONFIG = -DTILES_IN_GLYPHMAP
+endif
 MSDOS_TARGET_CFLAGS = -c -O $(DBGFLAGS) -I../include -I../sys/msdos -I../win/share \
-	$(LUAINCL) -DDLB $(PDCURSESDEF) -DTILES_IN_GLYPHMAP \
+	$(LUAINCL) -DDLB $(PDCURSESDEF) $(MSDOS_GRAPH_CONFIG) \
 	-DCROSSCOMPILE -DCROSSCOMPILE_TARGET -DCROSS_TO_MSDOS \
 	-D_NAIVE_DOS_REGS \
 	$(MSDOS_GCC_CFLAGS) $(SNDCFLAGS)
@@ -190,7 +205,11 @@ MSDOS_TARGET_CXXFLAGS = -c -O $(DBGFLAGS) -I../include -I../sys/msdos -I../win/s
 PDCINCL += -I$(PDCPORT)
 PDC_TARGET_CFLAGS = $(MSDOS_TARGET_CFLAGS) -Wno-unused-parameter \
 			-Wno-missing-prototypes
-ifndef SKIP_FONTS_IN_CI
+ifdef SKIP_FONTS_IN_CI
+FONTTARGETS=
+else ifdef SKIP_FONTS
+FONTTARGETS=
+else
 FONTVER = terminus-font-4.49.1
 FONTTOP = ../lib/$(FONTVER)
 DOSFONT = ../sys/msdos/fonts
@@ -198,8 +217,6 @@ FONTTARGETS = $(DOSFONT)/ter-u16b.psf $(DOSFONT)/ter-u16v.psf \
 		$(DOSFONT)/ter-u18b.psf $(DOSFONT)/ter-u20b.psf \
 		$(DOSFONT)/ter-u22b.psf $(DOSFONT)/ter-u24b.psf \
 		$(DOSFONT)/ter-u28b.psf $(DOSFONT)/ter-u32b.psf
-else
-FONTTARGETS=
 endif
 LUABIN = ../lib/lua-$(LUA_VERSION)/src/lua
 LUA_TARGET_CFLAGS = $(MSDOS_TARGET_CFLAGS)
@@ -216,18 +233,22 @@ override SYSSRC = ../sys/share/pcmain.c ../sys/msdos/msdos.c \
 		../sys/share/pcsys.c ../sys/share/pctty.c \
 		../sys/share/pcunix.c ../sys/msdos/video.c \
 		../sys/msdos/vidtxt.c ../sys/msdos/pckeys.c \
-		../sys/msdos/vidvga.c ../sys/msdos/vidvesa.c \
+		../sys/msdos/vidvga.c ../sys/msdos/vidvesa.c
-		../sys/msdos/font.c \
-		../win/share/bmptiles.c ../win/share/giftiles.c \
-		../win/share/tileset.c
 override SYSOBJ= $(TARGETPFX)pcmain.o $(TARGETPFX)msdos.o \
 		$(TARGETPFX)pcsys.o $(TARGETPFX)pctty.o \
 		$(TARGETPFX)pcunix.o $(TARGETPFX)video.o \
 		$(TARGETPFX)vidtxt.o $(TARGETPFX)pckeys.o \
-		$(TARGETPFX)vidvga.o $(TARGETPFX)vidvesa.o \
+		$(TARGETPFX)vidvga.o $(TARGETPFX)vidvesa.o
-		$(TARGETPFX)font.o \
+ifndef SKIP_FONT_C
-		$(TARGETPFX)bmptiles.o $(TARGETPFX)giftiles.o \
+override SYSSRC += ../sys/msdos/font.c
+override SYSOBJ += $(TARGETPFX)font.o
+endif
+ifndef SKIP_TILES
+override SYSSRC += ../win/share/bmptiles.c ../win/share/giftiles.c \
+		../win/share/tileset.c
+override SYSOBJ += $(TARGETPFX)bmptiles.o $(TARGETPFX)giftiles.o \
 		$(TARGETPFX)tileset.o
+endif
 override WINLIB=
 override LUALIB=
 override LUALIBS=
@@ -250,7 +271,12 @@ GDBEXE=
 GDBBAT=
 GDBCMDLINE=
 endif
+ifndef SKIP_TILES
 VARDATND += nhtiles.bmp
+NHTILES = ../dat/nhtiles.bmp
+else
+NHTILES =
+endif
 #
 ifdef WANT_WIN_CURSES
 # rules for pdcurses dos-specific files

win/share/bmptiles.c

@@ -3,6 +3,9 @@
 /* NetHack may be freely redistributed.  See license for details. */
 
 #include "config.h"
+
+#ifdef TILES_IN_GLYPHMAP
+
 #include "tileset.h"
 
 /* First BMP file header */
@@ -592,3 +595,5 @@ pixel_element(uint32 mask, uint32 color)
     color &= mask;
     return color * 255 / mask;
 }
+
+#endif /* TILES_IN_GLYPHMAP */

win/share/giftiles.c

@@ -7,6 +7,9 @@
  * http://www.w3.org/Graphics/GIF/spec-gif89a.txt */
 
 #include "config.h"
+
+#ifdef TILES_IN_GLYPHMAP
+
 #include "tileset.h"
 
 #define MIN_LZW_BITS 3
@@ -497,3 +500,5 @@ free_data_block(struct DataBlock *block)
     block->size = 0;
     block->data = NULL;
 }
+
+#endif /* TILES_IN_GLYPHMAP */

win/share/tileset.c

@@ -3,6 +3,9 @@
 /* NetHack may be freely redistributed.  See license for details. */
 
 #include "config.h"
+
+#ifdef TILES_IN_GLYPHMAP
+
 #include "objclass.h"
 #include "flag.h"
 #include "tileset.h"
@@ -348,3 +351,5 @@ read_png_tiles(const char *filename UNUSED, struct TileSetImage *image UNUSED)
     /* stub */
     return FALSE;
 }
+
+#endif /* TILES_IN_GLYPHMAP */

win/tty/termcap.c

@@ -27,11 +27,13 @@ void term_end_extracolor(void);
 #if (!defined(UNIX) || !defined(TERMINFO)) && !defined(TOS)
 static void analyze_seq(char *, int *, int *);
 #endif
+#if defined(UNIX) && defined(TERMINFO)
+static int indexed_color_count(void);
+#endif
 #endif
 #if (defined(TERMLIB) || defined(ANSI_DEFAULT))
 static void init_hilite(void);
 static void kill_hilite(void);
-static int indexed_color_count(void);
 #endif
 
 /* (see tcap.h) -- nh_CM, nh_ND, nh_CD, nh_HI,nh_HE, nh_US,nh_UE, ul_hack */
@@ -40,12 +42,16 @@ struct tc_lcl_data tc_lcl_data = { 0, 0, 0, 0, 0, 0, 0, FALSE };
 static char *nh_VI = (char *) 0; /* cursor_invisible */
 static char *nh_VE = (char *) 0; /* cursor_normal */
 /*static char *nh_VS = (char *) 0;*/ /* cursor_visible (highlighted cursor) */
+#if defined(TERMLIB) || defined(CHANGE_COLOR)
 static char *nh_Ic = (char *) 0; /* initialize_color */
+#endif
 
 #if !defined(__NetBSD__)
 static char *UP, *BC;
+#ifdef TERMLIB
 static char PC = '\0';
 #endif
+#endif
 
 static char *HO, *CL, *CE, *XD, *SO, *SE, *TI, *TE;
 static char *VS, *VE;
@@ -1580,13 +1586,7 @@ tty_change_color(int color, long rgb, int reverse UNUSED)
 
 #ifndef SEP2
 #define tcfmtstr "\033[38;2;%ld;%ld;%ldm"
-#ifdef UNIX
-#define tcfmtstr24bit "\033[38;2;%u;%u;%um"
 #define tcfmtstr256 "\033[38;5;%dm"
-#else
-#define tcfmtstr24bit "\033[38;2;%lu;%lu;%lum"
-#define tcfmtstr256 "\033[38:5:%lum"
-#endif
 #endif
 
 static void emit24bit(long mcolor);

win/tty/wintty.c

@@ -182,7 +182,7 @@ static const char winpanicstr[] = "Bad window Id %d (%s)";
 char defmorestr[] = "--More--";
 
 #ifdef CLIPPING
-#if defined(TILES_IN_GLYPHMAP) && defined(MSDOS)
+#if (defined(TILES_IN_GLYPHMAP) || defined(ENHANCED_SYMBOLS)) && defined(MSDOS)
 boolean clipping = FALSE; /* clipping on? */
 int clipx = 0, clipxmax = 0;
 int clipy = 0, clipymax = 0;
@@ -193,7 +193,7 @@ static int clipy = 0, clipymax = 0;
 #endif
 #endif /* CLIPPING */
 
-#if defined(TILES_IN_GLYPHMAP) && defined(MSDOS)
+#if defined(NO_TERMS) && defined(MSDOS)
 extern void adjust_cursor_flags(struct WinDesc *);
 #endif
 
@@ -2072,7 +2072,7 @@ tty_curs(
 
     print_vt_code2(AVTC_SELECT_WINDOW, window);
 
-#if defined(TILES_IN_GLYPHMAP) && defined(MSDOS)
+#if defined(NO_TERMS) && defined(MSDOS)
     adjust_cursor_flags(cw);
 #endif