39,17 → 39,12 |
* Tetris screen control. |
*/ |
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#include <sys/ioctl.h> |
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#include <err.h> |
//#include <setjmp.h> |
//#include <signal.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <string.h> |
#include <term.h> |
#include <termios.h> |
#include <unistd.h> |
#include <io/stream.h> |
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#include "screen.h" |
#include "tetris.h" |
134,6 → 129,8 |
#define putstr(s) (void)fputs(s, stdout) |
#define moveto(r, c) putpad(tgoto(CMstr, c, r)) |
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static int con_phone; |
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/* |
* Set up from termcap. |
*/ |
140,95 → 137,15 |
void |
scr_init(void) |
{ |
static int bsflag, xsflag, sgnum; |
#ifdef unneeded |
static int ncflag; |
#endif |
char *term, *fill; |
static struct tcninfo { /* termcap numeric and flag info */ |
char tcname[3]; |
int *tcaddr; |
} tcflags[] = { |
{"bs", &bsflag}, |
{"ms", &MSflag}, |
#ifdef unneeded |
{"nc", &ncflag}, |
#endif |
{"xs", &xsflag}, |
{ {0}, NULL} |
}, tcnums[] = { |
{"co", &COnum}, |
{"li", &LInum}, |
{"sg", &sgnum}, |
{ {0}, NULL} |
}; |
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if ((term = getenv("TERM")) == NULL) |
stop("you must set the TERM environment variable"); |
if (tgetent(tbuf, term) <= 0) |
stop("cannot find your termcap"); |
fill = combuf; |
{ |
struct tcsinfo *p; |
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for (p = tcstrings; p->tcaddr; p++) |
*p->tcaddr = tgetstr(p->tcname, &fill); |
} |
if (classic) |
SOstr = SEstr = NULL; |
{ |
struct tcninfo *p; |
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for (p = tcflags; p->tcaddr; p++) |
*p->tcaddr = tgetflag(p->tcname); |
for (p = tcnums; p->tcaddr; p++) |
*p->tcaddr = tgetnum(p->tcname); |
} |
if (bsflag) |
BC = "\b"; |
else if (BC == NULL && bcstr != NULL) |
BC = bcstr; |
if (CLstr == NULL) |
stop("cannot clear screen"); |
if (CMstr == NULL || UP == NULL || BC == NULL) |
stop("cannot do random cursor positioning via tgoto()"); |
PC = pcstr ? *pcstr : 0; |
if (sgnum > 0 || xsflag) |
SOstr = SEstr = NULL; |
#ifdef unneeded |
if (ncflag) |
CRstr = NULL; |
else if (CRstr == NULL) |
CRstr = "\r"; |
#endif |
con_phone = get_fd_phone(1); |
} |
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/* this foolery is needed to modify tty state `atomically' */ |
//static jmp_buf scr_onstop; |
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/* static void */ |
/* stopset(int sig) */ |
/* { */ |
/* sigset_t sigset; */ |
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/* (void) signal(sig, SIG_DFL); */ |
/* (void) kill(getpid(), sig); */ |
/* sigemptyset(&sigset); */ |
/* sigaddset(&sigset, sig); */ |
/* (void) sigprocmask(SIG_UNBLOCK, &sigset, (sigset_t *)0); */ |
/* longjmp(scr_onstop, 1); */ |
/* } */ |
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static void |
scr_stop(int sig) |
{ |
// sigset_t sigset; |
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scr_end(); |
/* (void) kill(getpid(), sig); */ |
/* sigemptyset(&sigset); */ |
/* sigaddset(&sigset, sig); */ |
/* (void) sigprocmask(SIG_UNBLOCK, &sigset, (sigset_t *)0); */ |
scr_set(); |
scr_msg(key_msg, 1); |
} |
241,24 → 158,8 |
{ |
struct winsize ws; |
struct termios newtt; |
// sigset_t sigset, osigset; |
void (*ttou)(int); |
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/* sigemptyset(&sigset); */ |
/* sigaddset(&sigset, SIGTSTP); */ |
/* sigaddset(&sigset, SIGTTOU); */ |
/* (void) sigprocmask(SIG_BLOCK, &sigset, &osigset); */ |
/* if ((tstp = signal(SIGTSTP, stopset)) == SIG_IGN) */ |
/* (void) signal(SIGTSTP, SIG_IGN); */ |
/* if ((ttou = signal(SIGTTOU, stopset)) == SIG_IGN) */ |
/* (void) signal(SIGTTOU, SIG_IGN); */ |
/* /\* */ |
/* * At last, we are ready to modify the tty state. If */ |
/* * we stop while at it, stopset() above will longjmp back */ |
/* * to the setjmp here and we will start over. */ |
/* *\/ */ |
/* (void) setjmp(scr_onstop); */ |
/* (void) sigprocmask(SIG_SETMASK, &osigset, (sigset_t *)0); */ |
Rows = 0, Cols = 0; |
if (ioctl(0, TIOCGWINSZ, &ws) == 0) { |
Rows = ws.ws_row; |
283,7 → 184,6 |
newtt.c_oflag &= ~OXTABS; |
if (tcsetattr(0, TCSADRAIN, &newtt) < 0) |
stop("tcsetattr() fails"); |
/* (void) sigprocmask(SIG_BLOCK, &sigset, &osigset); */ |
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/* |
* We made it. We are now in screen mode, modulo TIstr |
291,13 → 191,9 |
*/ |
if (TIstr) |
putstr(TIstr); /* termcap(5) says this is not padded */ |
/* if (tstp != SIG_IGN) */ |
/* (void) signal(SIGTSTP, scr_stop); */ |
/* if (ttou != SIG_IGN) */ |
/* (void) signal(SIGTTOU, ttou); */ |
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isset = 1; |
// (void) sigprocmask(SIG_SETMASK, &osigset, (sigset_t *)0); |
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scr_clear(); |
} |
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307,26 → 203,6 |
void |
scr_end(void) |
{ |
// sigset_t sigset, osigset; |
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/* sigemptyset(&sigset); */ |
/* sigaddset(&sigset, SIGTSTP); */ |
/* sigaddset(&sigset, SIGTTOU); */ |
/* (void) sigprocmask(SIG_BLOCK, &sigset, &osigset); */ |
/* move cursor to last line */ |
if (LLstr) |
putstr(LLstr); /* termcap(5) says this is not padded */ |
else |
moveto(Rows - 1, 0); |
/* exit screen mode */ |
if (TEstr) |
putstr(TEstr); /* termcap(5) says this is not padded */ |
// (void) fflush(stdout); |
(void) tcsetattr(0, TCSADRAIN, &oldtt); |
isset = 0; |
/* restore signals */ |
/* (void) signal(SIGTSTP, tstp); */ |
/* (void) sigprocmask(SIG_SETMASK, &osigset, (sigset_t *)0); */ |
} |
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void |
365,13 → 241,8 |
cell *bp, *sp; |
regcell so, cur_so = 0; |
int i, ccol, j; |
// sigset_t sigset, osigset; |
static const struct shape *lastshape; |
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/* sigemptyset(&sigset); */ |
/* sigaddset(&sigset, SIGTSTP); */ |
/* (void) sigprocmask(SIG_BLOCK, &sigset, &osigset); */ |
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/* always leave cursor after last displayed point */ |
curscreen[D_LAST * B_COLS - 1] = -1; |
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