hi,

i'm stuck trying to do the following with the
already existing plan9 functions from draw.h:

in short, i want to do a draw() to an image
using only a specific rectangle in the source
image, i.e. a call to draw which puts at
dst(x, y) the rectangle Rect(x1, y1, x2, y2)
from src..

so far i can clumsily simulate that by setting
src's clipr to the wanted rectangle and then
aligning the source so that src->clipr.min is
at (x, y) in the draw() operation. somehow,
though, i don't think this is the easiest way :)


i'm sure the answer is very simple, andrey

ps: i'm attaching maze.c for your enjoyment,
it'll probably appear on the xscreensaver ports
site in a few days...