[pygame] surface.map_rgb() returns signed int, surfarray.array2d unsigned int

[Lenard Lindstrom <len-l@xxxxxxxxx>]

Hi,

I am writing more unit tests for surfarray after completing the 
blit_array tests. Right now I am working on array2d. It would seem 
natural to compare the elements of an array returned by array2d with 
values returned by map_rgb for the surface used to create the array. But 
it is not that easy. map_rgb returns a signed integer. The array is 
unsigned. So, though the two numbers may represent the same pixel value, 
they cannot be directly compared for assertion tests. It also brings up 
another issue, shouldn't map_rgb be compatible with array2d and 
blit_array. How else would one format surface specific pixel values from 
Color values. So the question is, do I change map_rgb to return an 
unsigned value as a Python long? Would this break anything?

Lenard

--
Lenard Lindstrom
<len-l@xxxxxxxxx>