mirror of https://github.com/mpv-player/mpv
239 lines
6.6 KiB
C
239 lines
6.6 KiB
C
/* GyS-TermIO v2.0 (for GySmail v3) (C) 1999 A'rpi/ESP-team */
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#include "../config.h"
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//#define USE_TERMCAP
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#define USE_IOCTL
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#define MAX_KEYS 64
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#define BUF_LEN 256
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#ifdef USE_IOCTL
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#include <sys/ioctl.h>
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#endif
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#include <sys/termios.h>
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#include <unistd.h>
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#include "keycodes.h"
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static struct termios tio_orig;
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static int getch2_len=0;
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static char getch2_buf[BUF_LEN];
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int screen_width=80;
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int screen_height=24;
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typedef struct {
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int len;
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int code;
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char chars[8];
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} keycode_st;
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static keycode_st getch2_keys[MAX_KEYS];
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static int getch2_key_db=0;
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#ifdef USE_TERMCAP
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#if 0
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#include <termcap.h>
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#else
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extern int tgetent (char *BUFFER, char *TERMTYPE);
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extern int tgetnum (char *NAME);
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extern int tgetflag (char *NAME);
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extern char *tgetstr (char *NAME, char **AREA);
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#endif
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static char term_buffer[4096];
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static char term_buffer2[4096];
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static char *term_p=term_buffer2;
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static void termcap_add(char *id,int code){
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char *p=tgetstr(id,&term_p);
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if(!p) return;
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if(getch2_key_db>=MAX_KEYS) return;
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getch2_keys[getch2_key_db].len=strlen(p);
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strncpy(getch2_keys[getch2_key_db].chars,p,8);
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getch2_keys[getch2_key_db].code=code;
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++getch2_key_db;
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/* printf("%s=%s\n",id,p); */
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}
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static int success=0;
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int load_termcap(char *termtype){
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if(!termtype) termtype=getenv("TERM");
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success=tgetent(term_buffer, termtype);
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if(success<0){ printf("Could not access the 'termcap' data base.\n"); return 0; }
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if(success==0){ printf("Terminal type `%s' is not defined.\n", termtype);return 0;}
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screen_width=tgetnum("co");
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screen_height=tgetnum("li");
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if(screen_width<1 || screen_width>255) screen_width=80;
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if(screen_height<1 || screen_height>255) screen_height=24;
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termcap_add("kP",KEY_PGUP);
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termcap_add("kN",KEY_PGDWN);
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termcap_add("kh",KEY_HOME);
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termcap_add("kH",KEY_END);
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termcap_add("kI",KEY_INS);
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termcap_add("kD",KEY_DEL);
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termcap_add("kb",KEY_BS);
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termcap_add("kl",KEY_LEFT);
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termcap_add("kd",KEY_DOWN);
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termcap_add("ku",KEY_UP);
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termcap_add("kr",KEY_RIGHT);
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termcap_add("k0",KEY_F+0);
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termcap_add("k1",KEY_F+1);
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termcap_add("k2",KEY_F+2);
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termcap_add("k3",KEY_F+3);
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termcap_add("k4",KEY_F+4);
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termcap_add("k5",KEY_F+5);
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termcap_add("k6",KEY_F+6);
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termcap_add("k7",KEY_F+7);
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termcap_add("k8",KEY_F+8);
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termcap_add("k9",KEY_F+9);
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termcap_add("k;",KEY_F+10);
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return getch2_key_db;
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}
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#endif
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void get_screen_size(){
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#ifdef USE_IOCTL
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struct winsize ws;
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if (ioctl(0, TIOCGWINSZ, &ws) < 0 || !ws.ws_row || !ws.ws_col) return;
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/* printf("Using IOCTL\n"); */
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screen_width=ws.ws_col;
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screen_height=ws.ws_row;
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#endif
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}
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int getch2(int time){
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int len=0;
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int code=0;
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int i=0;
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while(!getch2_len || (getch2_len==1 && getch2_buf[0]==27)){
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fd_set rfds;
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struct timeval tv;
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int retval;
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/* Watch stdin (fd 0) to see when it has input. */
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FD_ZERO(&rfds); FD_SET(0,&rfds);
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/* Wait up to 'time' microseconds. */
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tv.tv_sec=time/1000; tv.tv_usec = (time%1000)*1000;
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retval=select(1, &rfds, NULL, NULL, &tv);
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if(!retval) return -1;
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/* Data is available now. */
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retval=read(0,&getch2_buf[getch2_len],BUF_LEN-getch2_len);
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if(retval<1) return -1;
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getch2_len+=retval;
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}
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/* First find in the TERMCAP database: */
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for(i=0;i<getch2_key_db;i++){
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if((len=getch2_keys[i].len)<=getch2_len)
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if(memcmp(getch2_keys[i].chars,getch2_buf,len)==0){
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code=getch2_keys[i].code; goto found;
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}
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}
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len=1;code=getch2_buf[0];
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/* Check the well-known codes... */
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if(code!=27){
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if(code=='A'-64){ code=KEY_HOME; goto found;}
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if(code=='E'-64){ code=KEY_END; goto found;}
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if(code=='D'-64){ code=KEY_DEL; goto found;}
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if(code=='H'-64){ code=KEY_BS; goto found;}
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if(code=='U'-64){ code=KEY_PGUP; goto found;}
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if(code=='V'-64){ code=KEY_PGDWN; goto found;}
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if(code==8 || code==127){ code=KEY_BS; goto found;}
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if(code==10 || code==13){
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if(getch2_len>1){
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int c=getch2_buf[1];
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if(c==10 || c==13) if(c!=code) len=2;
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}
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code=KEY_ENTER;
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goto found;
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}
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} else if(getch2_len>1){
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int c=getch2_buf[1];
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if(c==27){ code=KEY_ESC; len=2; goto found;}
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if(c>='0' && c<='9'){ code=c-'0'+KEY_F; len=2; goto found;}
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if(getch2_len>=4 && c=='[' && getch2_buf[2]=='['){
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int c=getch2_buf[3];
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if(c>='A' && c<'A'+12){ code=KEY_F+1+c-'A';len=4;goto found;}
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}
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if(c=='[' || c=='O') if(getch2_len>=3){
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int c=getch2_buf[2];
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static short int ctable[]={ KEY_UP,KEY_DOWN,KEY_RIGHT,KEY_LEFT,0,
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KEY_END,KEY_PGDWN,KEY_HOME,KEY_PGUP,0,0,KEY_INS,0,0,0,
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KEY_F+1,KEY_F+2,KEY_F+3,KEY_F+4};
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if(c>='A' && c<='S')
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if(ctable[c-'A']){ code=ctable[c-'A']; len=3; goto found;}
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}
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if(getch2_len>=4 && c=='[' && getch2_buf[3]=='~'){
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int c=getch2_buf[2];
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int ctable[8]={KEY_HOME,KEY_INS,KEY_DEL,KEY_END,KEY_PGUP,KEY_PGDWN,KEY_HOME,KEY_END};
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if(c>='1' && c<='8'){ code=ctable[c-'1']; len=4; goto found;}
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}
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if(getch2_len>=5 && c=='[' && getch2_buf[4]=='~'){
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int i=getch2_buf[2]-'0';
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int j=getch2_buf[3]-'0';
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if(i>=0 && i<=9 && j>=0 && j<=9){
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static short int ftable[20]={
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11,12,13,14,15, 17,18,19,20,21,
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23,24,25,26,28, 29,31,32,33,34 };
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int a=i*10+j;
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for(i=0;i<20;i++) if(ftable[i]==a){ code=KEY_F+1+i;len=5;goto found;}
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}
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}
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}
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found:
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if((getch2_len-=len)>0){
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int i;
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for(i=0;i<getch2_len;i++) getch2_buf[i]=getch2_buf[len+i];
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}
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return code;
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}
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static int getch2_status=0;
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void getch2_enable(){
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struct termios tio_new;
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#if defined(__NetBSD__) || defined(__svr4__) || defined(__CYGWIN__)
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tcgetattr(0,&tio_orig);
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#elif defined(__FreeBSD__) || defined(__OpenBSD__)
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ioctl(0,TIOCGETA,&tio_orig);
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#else
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ioctl(0,TCGETS,&tio_orig);
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#endif
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tio_new=tio_orig;
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tio_new.c_lflag &= ~(ICANON|ECHO); /* Clear ICANON and ECHO. */
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tio_new.c_cc[VMIN] = 1;
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tio_new.c_cc[VTIME] = 0;
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#if defined(__NetBSD__) || defined(__svr4__) || defined(__CYGWIN__)
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tcsetattr(0,TCSANOW,&tio_new);
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#elif defined(__FreeBSD__) || defined(__OpenBSD__)
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ioctl(0,TIOCSETA,&tio_new);
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#else
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ioctl(0,TCSETS,&tio_new);
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#endif
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getch2_status=1;
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}
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void getch2_disable(){
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if(!getch2_status) return; // already disabled / never enabled
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#if defined(__NetBSD__) || defined(__svr4__) || defined(__CYGWIN__)
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tcsetattr(0,TCSANOW,&tio_orig);
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#elif defined(__FreeBSD__) || defined(__OpenBSD__)
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ioctl(0,TIOCSETA,&tio_orig);
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#else
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ioctl(0,TCSETS,&tio_orig);
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#endif
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getch2_status=0;
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}
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