| @@ -44,6 +44,110 @@ void m_vector(int x0, int y0, int x1, int y1, int c){ · 43 unmodified lines |
| 44 | 44 | if(c>(1<<(1<<screen.ldepth))-1) c=(2<<screen.ldepth)-1; |
| 45 | 45 | segment(offscreen, Pt(x0, y0), Pt(x1, y1), c, S); |
| 46 | 46 | } |
| 47 | +Rectangle scr; |
| 48 | +int scrset=0; |
| 49 | +char *scanint(char *s, int *n){ |
| 50 | + while(*s<'0' || '9'<*s){ |
| 51 | + if(*s=='\0'){ |
| 52 | + fprint(2, "plot: bad -Wxmin,ymin,xmax,ymax\n"); |
| 53 | + exits("bad arg"); |
| 54 | + } |
| 55 | + s++; |
| 56 | + } |
| 57 | + *n=0; |
| 58 | + while('0'<=*s && *s<='9'){ |
| 59 | + *n=*n*10+*s-'0'; |
| 60 | + s++; |
| 61 | + } |
| 62 | + return s; |
| 63 | +} |
| 64 | +void setwindow(char *s){ |
| 65 | + s=scanint(s, &scr.min.x); |
| 66 | + s=scanint(s, &scr.min.y); |
| 67 | + s=scanint(s, &scr.max.x); |
| 68 | + scanint(s, &scr.max.y); |
| 69 | + scrset=1; |
| 70 | +} |
| 71 | +Rectangle getscr(void){ |
| 72 | + int fd; |
| 73 | + char buf[12*5]; |
| 74 | + fd=open("/dev/screen", OREAD); |
| 75 | + if(fd==-1) fd=open("/mnt/term/dev/screen", OREAD); |
| 76 | + if(fd==-1) return Rect(0,0,1024,1024); |
| 77 | + if(read(fd, buf, sizeof buf)!=sizeof buf){ |
| 78 | + fprint(2, "Can't read /dev/screen: %r\n"); |
| 79 | + exits("screen read"); |
| 80 | + } |
| 81 | + return Rect(atoi(buf+12), atoi(buf+24), atoi(buf+36), atoi(buf+48)); |
| 82 | +} |
| 83 | +char *rdenv(char *name){ |
| 84 | + char *v; |
| 85 | + int fd, size; |
| 86 | + fd=open(name, OREAD); |
| 87 | + if(fd<0) return 0; |
| 88 | + size=seek(fd, 0, 2); |
| 89 | + v=malloc(size+1); |
| 90 | + if(v==0){ |
| 91 | + fprint(2, "Can't malloc: %r\n"); |
| 92 | + exits("no mem"); |
| 93 | + } |
| 94 | + seek(fd, 0, 0); |
| 95 | + read(fd, v, size); |
| 96 | + v[size]=0; |
| 97 | + close(fd); |
| 98 | + return v; |
| 99 | +} |
| 100 | +void winit(void (*errfun)(char *), char *font, char *label, Rectangle r){ |
| 101 | + char *srv, *mntsrv; |
| 102 | + char spec[100]; |
| 103 | + int srvfd, cons, pid; |
| 104 | + switch(rfork(RFFDG|RFPROC|RFNAMEG|RFENVG|RFNOTEG|RFNOWAIT)){ |
| 105 | + case -1: |
| 106 | + fprint(2, "Can't fork: %r\n"); |
| 107 | + exits("no fork"); |
| 108 | + case 0: |
| 109 | + break; |
| 110 | + default: |
| 111 | + exits(0); |
| 112 | + } |
| 113 | + srv=rdenv("/env/8½srv"); |
| 114 | + if(srv==0){ |
| 115 | + free(srv); |
| 116 | + mntsrv=rdenv("/mnt/term/env/8½srv"); |
| 117 | + srv=malloc(strlen(mntsrv)+10); |
| 118 | + sprint(srv, "/mnt/term%s", mntsrv); |
| 119 | + free(mntsrv); |
| 120 | + pid=0; /* 8½srv can't send notes to remote processes! */ |
| 121 | + } |
| 122 | + else pid=getpid(); |
| 123 | + srvfd=open(srv, ORDWR); |
| 124 | + free(srv); |
| 125 | + if(srvfd==-1){ |
| 126 | + fprint(2, "Can't open %s: %r\n", srv); |
| 127 | + exits("no srv"); |
| 128 | + } |
| 129 | + sprint(spec, "N%d,%d,%d,%d,%d\n", pid, r.min.x, r.min.y, r.max.x, r.max.y); |
| 130 | + if(mount(srvfd, "/mnt/8½", 0, spec)==-1){ |
| 131 | + fprint(2, "Can't mount: %r\n"); |
| 132 | + exits("no mount"); |
| 133 | + } |
| 134 | + close(srvfd); |
| 135 | + bind("/mnt/8½", "/dev", MBEFORE); |
| 136 | + cons=open("/dev/cons", OREAD); |
| 137 | + if(cons==-1){ |
| 138 | + NoCons: |
| 139 | + fprint(2, "Can't open /dev/cons: %r"); |
| 140 | + exits("no cons"); |
| 141 | + } |
| 142 | + dup(cons, 0); |
| 143 | + close(cons); |
| 144 | + cons=open("/dev/cons", OWRITE); |
| 145 | + if(cons==-1) goto NoCons; |
| 146 | + dup(cons, 1); |
| 147 | + dup(cons, 2); |
| 148 | + close(cons); |
| 149 | + binit(errfun, font, label); |
| 150 | +} |
| 47 | 151 | /* |
| 48 | 152 | * Startup initialization |
| 49 | 153 | */ |
| @@ -52,7 +156,12 @@ void m_initialize(char *s){ · 2 unmodified lines |
| 52 | 156 | int dx, dy; |
| 53 | 157 | USED(s); |
| 54 | 158 | if(first){ |
| 55 | | − binit(0,0,0); |
| 159 | + if(!scrset){ |
| 160 | + scr=getscr(); |
| 161 | + scr.min=div(sub(add(scr.min, scr.max), Pt(520, 520)), 2); |
| 162 | + scr.max=add(scr.min, Pt(520, 520)); |
| 163 | + } |
| 164 | + winit(0,0,0,scr); |
| 56 | 165 | clipminx=mapminx=screen.r.min.x+4; |
| 57 | 166 | clipminy=mapminy=screen.r.min.y+4; |
| 58 | 167 | clipmaxx=mapmaxx=screen.r.max.x-5; |