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vt: handle nocolor flag and reversed background colors

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This commit is contained in:
cinap_lenrek 2017-04-22 22:19:17 +02:00
parent c029a0c913
commit 13a74150ac
1 changed files with 38 additions and 13 deletions
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51
sys/src/cmd/vt/main.c
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@ -47,6 +47,11 @@ Rune hist[HISTSIZ];
Rune *onscreenrbuf;
uchar *onscreenabuf;
uchar *onscreencbuf;
#define onscreenr(x, y) &onscreenrbuf[((y)*(xmax+2) + (x))]
#define onscreena(x, y) &onscreenabuf[((y)*(xmax+2) + (x))]
#define onscreenc(x, y) &onscreencbuf[((y)*(xmax+2) + (x))]
int yscrmin, yscrmax;
int attr, defattr;
@ -300,18 +305,40 @@ initialize(int argc, char **argv)
}
}
#define onscreenr(x, y) &onscreenrbuf[((y)*(xmax+2) + (x))]
#define onscreena(x, y) &onscreenabuf[((y)*(xmax+2) + (x))]
#define onscreenc(x, y) &onscreencbuf[((y)*(xmax+2) + (x))]
Image*
bgcol(int a, int c)
{
if(nocolor || (c & (1<<0)) == 0){
if(a & TReverse)
return fgcolor;
return bgcolor;
}
if((a & TReverse) != 0)
c >>= 4;
return colors[(c>>1)&7];
}
#define bgcol(a, c) (((a)&TReverse)!=0 ? (c)>>4 : (c&15))
#define fgcol(a, c) ((((a)&TReverse)==0 ? (c)>>4 : (c&15)) | (((a)&THighIntensity)!=0)<<4)
Image*
fgcol(int a, int c)
{
if(nocolor || (c & (1<<4)) == 0){
if(a & TReverse)
return bgcolor;
return fgcolor;
}
if((a & TReverse) == 0)
c >>= 4;
if(a & THighIntensity)
return hicolors[(c>>1)&7];
return colors[(c>>1)&7];
}
void
drawscreen(void)
{
int x, y, n;
uchar c, *ap, *cp;
uchar *ap, *cp;
Image *c;
Rune *rp;
draw(screen, screen->r, bgcolor, nil, ZP);
@ -320,15 +347,15 @@ drawscreen(void)
for(y = 0; y <= ymax; y++){
for(x = 0; x <= xmax; x += n){
cp = onscreenc(x, y);
if((*cp & 1) == 0){
ap = onscreena(x, y);
c = bgcol(*ap, *cp);
if(c == bgcolor){
n = 1;
continue;
}
ap = onscreena(x, y);
c = bgcol(*ap, *cp);
for(n = 1; x+n <= xmax && bgcol(ap[n], cp[n]) == c; n++)
;
draw(screen, Rpt(pt(x, y), pt(x+n, y+1)), colors[c>>1], nil, ZP);
draw(screen, Rpt(pt(x, y), pt(x+n, y+1)), c, nil, ZP);
}
}
@ -345,9 +372,7 @@ drawscreen(void)
c = fgcol(*ap, *cp);
for(n = 1; x+n <= xmax && rp[n] != 0 && fgcol(ap[n], cp[n]) == c; n++)
;
runestringn(screen, pt(x, y),
(c&1) ? (((c&16) ? hicolors : colors)[(c&15)>>1]) : fgcolor,
ZP, font, rp, n);
runestringn(screen, pt(x, y), c, ZP, font, rp, n);
}
if(*onscreenr(x, y) == 0)
runestringn(screen, pt(x, y),