Swizzled pixels...how does that work?

[binaryONE]

Hey guys,

Can anyone please tell me (in lamen's terms hehe), how the swizzled pixels work in psp sdk's "blit.c" example.

Is it how they are copied into the buffer?
Are they arranged a certain way to make faster blitting?

That example is mega low on comments, and I'd really appreciate some clerification.

Thank you.

[chp]

The wiki has more information on how to swizzle pixels here.