Mask to PixList

gistfile1.txt

from pgpu.iter_utils import flatten


def get_set(mask):
    xsize, ysize = mask.get_size()
    # return a 1D list of all the mask locations that are set
    return flatten((((x, y) for y in range(ysize) if mask.get_at((x, y))) 
                     for x in range(xsize)), 1)