nimrod-code/sdl2 — pull request #3 by def- (2014-06-13 23:15:21+00:00)
Title: make color masks always uint32s (as in the C API)

I have this code:
```nimrod
const # ARGB32
amask = 0xff000000
rmask = 0x00ff0000
gmask = 0x0000ff00
bmask = 0x000000ff

let surface = sdl2.createRGBSurfaceFrom(cImage, w, h, 32, stride,
rmask, gmask, bmask, amask)
```
It failed because the mask parameters are ints instead of unsigned ints, like in the C API.