devdraw.ed

在x86平台上运行不可信任代码的sandbox。

/^drawgen/ s/char\*, Dirtab\*, int,/char *_, Dirtab *__, int ___,/
,s/(Memimage\*,/(Memimage *m,/
,s/(next = ds->next)/(&)/
,s/(next = d->next)/(&)/
,s/(next = cs->next)/(&)/
/^makescreenimage/+2i
	void *X;
.
/attachscreen/ s/);/, \&X);/
/allocmemimaged/ s/md)/md, X)/
,s/(r = cl->refresh)/(&)/
/^drawwrite/ s/vlong)/vlong _)/
g/SET(s,q,p)/d
g/USED/d
g/^	int s;/d
/screen.h"/a

#define blankscreen(x)
#define ishwimage(x) (0)
.
/^drawlookupscreen/
/	return 0/ s/return 0/for(;;)/
g/Edepth/d
,s/dunlock/drawqunlock/g
,s/candlock/drawcanqlock/g
,s/dlock(/drawqlock(/g
/^drawqlock/-1 s/static //
/^drawqunlock/-1 s/static //
/^drawcanqlock/-1 s/static //
$a

/* why is this here? why can't caller use drawqlock himself? */
void
drawflushr(Rectangle r)
{
	drawqlock();
	flushmemscreen(r);
	drawqunlock();
}
.