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nethack/sys/share/unixtty.c
nethack.allison 253bf359af drawing overhaul (trunk only) 
This is an overhaul to the NetHack drawing mechanism.

- eliminates the need to have separate lists in drawing.c
for the things and their associated explanations by grouping
those thing together on the same inializer in a struct.

- replaces all of these options: IBMgraphics, DECgraphics, MACgraphics,
graphics, monsters, objects, boulder, traps, effects

- drawing.c contains only the set of NetHack standard symbols for
the main game and a set of NetHack standard symbols for the
roguelevel.

- introduces a symbols file that contains named sets of
symbols that can be loaded at run time making it extensible
for situations like multinational code pages like those reported
by <Someone>, without hardcoding additional sets into the game code.

- symbols file uses names for the symbols, so offsets will not break
when new things are introduced into the game, the way the older
config file uchar load routines did.

- symbols file only contains exceptions to the standard NetHack
set, not entire sets so they are much less verbose than all of
the g_FILLER() entries that were previously in drawing.c

- 'symset' and 'roguesymset' config file options for
preselecting a symbol set from the file called 'symbols'
at startup time. The name of the symbols file is not under the
users control, only the symbol set name desired from within the
symbols file is.

- 'symset' config file option loads a desired symbol set for
everything but the rogue level.

- 'roguesymset' config file option loads a desired symbol set
for the rogue level.

- 'SYMBOLS' config file option allows the user to specify replacement
symbols on a per symbol basis. You can specify as many or as few symbols
as you wish. The symbols are identified by a name:value pair, and line
continuation is supported. Multiple symbol assignments can be made on
the same line if each name:value pair is separated by a comma.
For example:
SYMBOLS = S_bars:\xf0, S_tree: \xf1, S_room:\xfa \
	  S_fountain:\xf4 \
	  S_boulder:0

- 'symbols' file has the following structure:
start: DECgraphics
	Handling: DEC
	S_vwall: \xf8			# meta-x, vertical rule
	S_hwall: \xf1			# meta-q, horizontal rule
finish
start: IBMgraphics
	Handling: IBM
	S_vwall: \xb3			# meta-3, vertical rule
	S_hwall: \xc4			# meta-D, horizontal rule
finish

- 'symbols' file added to the source tree in the dat directory

- Port Makefiles/scripts will need to be adjusted to move them into
HACKDIR destination
2006-09-21 01:46:15 +00:00

455 lines
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/* SCCS Id: @(#)unixtty.c 3.5 1990/22/02 */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* NetHack may be freely redistributed. See license for details. */
/* tty.c - (Unix) version */
/* With thanks to the people who sent code for SYSV - hpscdi!jon,
* arnold@ucsf-cgl, wcs@bo95b, cbcephus!pds and others.
*/
#define NEED_VARARGS
#include "hack.h"
/*
* The distinctions here are not BSD - rest but rather USG - rest, as
* BSD still has the old sgttyb structure, but SYSV has termio. Thus:
*/
#if (defined(BSD) || defined(ULTRIX)) && !defined(POSIX_TYPES)
# define V7
#else
# define USG
#endif
#ifdef USG
# ifdef POSIX_TYPES
# include <termios.h>
# include <unistd.h>
# define termstruct termios
# else
# include <termio.h>
# if defined(TCSETS) && !defined(AIX_31)
# define termstruct termios
# else
# define termstruct termio
# endif
# endif /* POSIX_TYPES */
# ifdef LINUX
# include <sys/ioctl.h>
# undef delay_output /* curses redefines this */
# include <curses.h>
# endif
# define kill_sym c_cc[VKILL]
# define erase_sym c_cc[VERASE]
# define intr_sym c_cc[VINTR]
# ifdef TAB3 /* not a POSIX flag, but some have it anyway */
# define EXTABS TAB3
# else
# define EXTABS 0
# endif
# define tabflgs c_oflag
# define echoflgs c_lflag
# define cbrkflgs c_lflag
# define CBRKMASK ICANON
# define CBRKON ! /* reverse condition */
# ifdef POSIX_TYPES
# define OSPEED(x) (speednum(cfgetospeed(&x)))
# else
# ifndef CBAUD
# define CBAUD _CBAUD /* for POSIX nitpickers (like RS/6000 cc) */
# endif
# define OSPEED(x) ((x).c_cflag & CBAUD)
# endif
# define IS_7BIT(x) ((x).c_cflag & CS7)
# define inputflags c_iflag
# define STRIPHI ISTRIP
# ifdef POSIX_TYPES
# define GTTY(x) (tcgetattr(0, x))
# define STTY(x) (tcsetattr(0, TCSADRAIN, x))
# else
# if defined(TCSETS) && !defined(AIX_31)
# define GTTY(x) (ioctl(0, TCGETS, x))
# define STTY(x) (ioctl(0, TCSETSW, x))
# else
# define GTTY(x) (ioctl(0, TCGETA, x))
# define STTY(x) (ioctl(0, TCSETAW, x))
# endif
# endif /* POSIX_TYPES */
# define GTTY2(x) 1
# define STTY2(x) 1
# ifdef POSIX_TYPES
# if defined(BSD) && !defined(__DGUX__)
# define nonesuch _POSIX_VDISABLE
# else
# define nonesuch (fpathconf(0, _PC_VDISABLE))
# endif
# else
# define nonesuch 0
# endif
# define inittyb2 inittyb
# define curttyb2 curttyb
#else /* V7 */
# include <sgtty.h>
# define termstruct sgttyb
# define kill_sym sg_kill
# define erase_sym sg_erase
# define intr_sym t_intrc
# define EXTABS XTABS
# define tabflgs sg_flags
# define echoflgs sg_flags
# define cbrkflgs sg_flags
# define CBRKMASK CBREAK
# define CBRKON /* empty */
# define inputflags sg_flags /* don't know how enabling meta bits */
# define IS_7BIT(x) (FALSE)
# define STRIPHI 0 /* should actually be done on BSD */
# define OSPEED(x) (x).sg_ospeed
# if defined(bsdi) || defined(__386BSD) || defined(SUNOS4)
# define GTTY(x) (ioctl(0, TIOCGETP, (char *)x))
# define STTY(x) (ioctl(0, TIOCSETP, (char *)x))
# else
# define GTTY(x) (gtty(0, x))
# define STTY(x) (stty(0, x))
# endif
# define GTTY2(x) (ioctl(0, TIOCGETC, (char *)x))
# define STTY2(x) (ioctl(0, TIOCSETC, (char *)x))
# define nonesuch -1
struct tchars inittyb2, curttyb2;
#endif /* V7 */
#if defined(TTY_GRAPHICS) && ((!defined(SYSV) && !defined(HPUX)) || defined(UNIXPC) || defined(SVR4))
# ifndef LINT
extern /* it is defined in libtermlib (libtermcap) */
# endif
short ospeed; /* terminal baudrate; set by gettty */
#else
short ospeed = 0; /* gets around "not defined" error message */
#endif
#if defined(POSIX_TYPES) && defined(BSD)
unsigned
#endif
char erase_char, intr_char, kill_char;
static boolean settty_needed = FALSE;
struct termstruct inittyb, curttyb;
#ifdef POSIX_TYPES
static int
speednum(speed)
speed_t speed;
{
switch (speed) {
case B0: return 0;
case B50: return 1;
case B75: return 2;
case B110: return 3;
case B134: return 4;
case B150: return 5;
case B200: return 6;
case B300: return 7;
case B600: return 8;
case B1200: return 9;
case B1800: return 10;
case B2400: return 11;
case B4800: return 12;
case B9600: return 13;
case B19200: return 14;
case B38400: return 15;
}
return 0;
}
#endif
static void
setctty()
{
if(STTY(&curttyb) < 0 || STTY2(&curttyb2) < 0)
perror("NetHack (setctty)");
}
/*
* Get initial state of terminal, set ospeed (for termcap routines)
* and switch off tab expansion if necessary.
* Called by startup() in termcap.c and after returning from ! or ^Z
*/
void
gettty()
{
if(GTTY(&inittyb) < 0 || GTTY2(&inittyb2) < 0)
perror("NetHack (gettty)");
curttyb = inittyb;
curttyb2 = inittyb2;
ospeed = OSPEED(inittyb);
erase_char = inittyb.erase_sym;
kill_char = inittyb.kill_sym;
intr_char = inittyb2.intr_sym;
getioctls();
/* do not expand tabs - they might be needed inside a cm sequence */
if(curttyb.tabflgs & EXTABS) {
curttyb.tabflgs &= ~EXTABS;
setctty();
}
settty_needed = TRUE;
}
/* reset terminal to original state */
void
settty(s)
const char *s;
{
end_screen();
if(s) raw_print(s);
if(STTY(&inittyb) < 0 || STTY2(&inittyb2) < 0)
perror("NetHack (settty)");
iflags.echo = (inittyb.echoflgs & ECHO) ? ON : OFF;
iflags.cbreak = (CBRKON(inittyb.cbrkflgs & CBRKMASK)) ? ON : OFF;
curttyb.inputflags |= STRIPHI;
setioctls();
}
void
setftty()
{
register int ef = 0; /* desired value of flags & ECHO */
#ifdef LINT /* cf = CBRKON(CBRKMASK); const expr to initialize is ok */
register int cf = 0;
#else
register int cf = CBRKON(CBRKMASK); /* desired value of flags & CBREAK */
#endif
register int change = 0;
iflags.cbreak = ON;
iflags.echo = OFF;
/* Should use (ECHO|CRMOD) here instead of ECHO */
if((curttyb.echoflgs & ECHO) != ef){
curttyb.echoflgs &= ~ECHO;
/* curttyb.echoflgs |= ef; */
change++;
}
if((curttyb.cbrkflgs & CBRKMASK) != cf){
curttyb.cbrkflgs &= ~CBRKMASK;
curttyb.cbrkflgs |= cf;
#ifdef USG
/* be satisfied with one character; no timeout */
curttyb.c_cc[VMIN] = 1; /* was VEOF */
curttyb.c_cc[VTIME] = 0; /* was VEOL */
# ifdef POSIX_JOB_CONTROL
/* turn off system suspend character
* due to differences in structure layout, this has to be
* here instead of in ioctl.c:getioctls() with the BSD
* equivalent
*/
# ifdef VSUSP /* real POSIX */
curttyb.c_cc[VSUSP] = nonesuch;
# else /* other later SYSV */
curttyb.c_cc[VSWTCH] = nonesuch;
# endif
# endif
# ifdef VDSUSP /* SunOS Posix extensions */
curttyb.c_cc[VDSUSP] = nonesuch;
# endif
# ifdef VREPRINT
curttyb.c_cc[VREPRINT] = nonesuch;
# endif
# ifdef VDISCARD
curttyb.c_cc[VDISCARD] = nonesuch;
# endif
# ifdef VWERASE
curttyb.c_cc[VWERASE] = nonesuch;
# endif
# ifdef VLNEXT
curttyb.c_cc[VLNEXT] = nonesuch;
# endif
#endif
change++;
}
if(!IS_7BIT(inittyb)) curttyb.inputflags &=~ STRIPHI;
/* If an interrupt character is used, it will be overriden and
* set to ^C.
*/
if(intr_char != nonesuch && curttyb2.intr_sym != '\003') {
curttyb2.intr_sym = '\003';
change++;
}
if(change) setctty();
start_screen();
}
void
intron() /* enable kbd interupts if enabled when game started */
{
#ifdef TTY_GRAPHICS
/* Ugly hack to keep from changing tty modes for non-tty games -dlc */
if (!strcmp(windowprocs.name, "tty") &&
intr_char != nonesuch && curttyb2.intr_sym != '\003') {
curttyb2.intr_sym = '\003';
setctty();
}
#endif
}
void
introff() /* disable kbd interrupts if required*/
{
#ifdef TTY_GRAPHICS
/* Ugly hack to keep from changing tty modes for non-tty games -dlc */
if (!strcmp(windowprocs.name, "tty") &&
curttyb2.intr_sym != nonesuch) {
curttyb2.intr_sym = nonesuch;
setctty();
}
#endif
}
#ifdef _M_UNIX /* SCO UNIX (3.2.4), from Andreas Arens */
# include <sys/console.h>
# define BSIZE (E_TABSZ*2)
# define LDIOC ('D'<<8) /* POSIX prevents definition */
# include <sys/emap.h>
int sco_flag_console = 0;
int sco_map_valid = -1;
unsigned char sco_chanmap_buf[BSIZE];
void NDECL(sco_mapon);
void NDECL(sco_mapoff);
void NDECL(check_sco_console);
void NDECL(init_sco_cons);
void
sco_mapon()
{
# ifdef TTY_GRAPHICS
if (!strcmp(windowprocs.name, "tty") && sco_flag_console) {
if (sco_map_valid != -1) {
ioctl(0,LDSMAP,sco_chanmap_buf);
}
sco_map_valid = -1;
}
# endif
}
void
sco_mapoff()
{
# ifdef TTY_GRAPHICS
if (!strcmp(windowprocs.name, "tty") && sco_flag_console) {
sco_map_valid = ioctl(0,LDGMAP,sco_chanmap_buf);
if (sco_map_valid != -1) {
ioctl(0,LDNMAP,(char *)0);
}
}
# endif
}
void
check_sco_console()
{
if (isatty(0) && ioctl(0,CONS_GET,0) != -1) {
sco_flag_console = 1;
}
}
void
init_sco_cons()
{
# ifdef TTY_GRAPHICS
if (!strcmp(windowprocs.name, "tty") && sco_flag_console) {
atexit(sco_mapon);
sco_mapoff();
# ifdef ASCIIGRAPH
load_symset("IBMGraphics", FALSE);
load_symset("IBMGraphics", TRUE);
switch_graphics(TRUE);
# endif
# ifdef TEXTCOLOR
if (has_colors())
iflags.use_color = TRUE;
# endif
}
# endif
}
#endif /* _M_UNIX */
#ifdef __linux__ /* via Jesse Thilo and Ben Gertzfield */
# include <sys/vt.h>
int linux_flag_console = 0;
void NDECL(linux_mapon);
void NDECL(linux_mapoff);
void NDECL(check_linux_console);
void NDECL(init_linux_cons);
void
linux_mapon()
{
# ifdef TTY_GRAPHICS
if (!strcmp(windowprocs.name, "tty") && linux_flag_console) {
write(1, "\033(B", 3);
}
# endif
}
void
linux_mapoff()
{
# ifdef TTY_GRAPHICS
if (!strcmp(windowprocs.name, "tty") && linux_flag_console) {
write(1, "\033(U", 3);
}
# endif
}
void
check_linux_console()
{
struct vt_mode vtm;
if (isatty(0) && ioctl(0,VT_GETMODE,&vtm) >= 0) {
linux_flag_console = 1;
}
}
void
init_linux_cons()
{
# ifdef TTY_GRAPHICS
if (!strcmp(windowprocs.name, "tty") && linux_flag_console) {
atexit(linux_mapon);
linux_mapoff();
# ifdef TEXTCOLOR
if (has_colors())
iflags.use_color = TRUE;
# endif
}
# endif
}
#endif /* __linux__ */
#ifndef __begui__ /* the Be GUI will define its own error proc */
/* fatal error */
/*VARARGS1*/
void
error VA_DECL(const char *,s)
VA_START(s);
VA_INIT(s, const char *);
if(settty_needed)
settty((char *)0);
Vprintf(s,VA_ARGS);
(void) putchar('\n');
VA_END();
exit(EXIT_FAILURE);
}
#endif /* !__begui__ */
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