[Pixman] [PATCH 1/2] blitters-test: Make common formats more likely to be tested.

[Soeren Sandmann]

I meant to send a 0/2 mail for these patches:

On IRC, Luca Barbato reported font corruption on ARM and bisected it
down to the addition of neon_composite_over_n_8888_0565() in
e75e6a4ef5c5a8ac8b0e8464f08f83fd2b6e86ed. It turned out that that
function was broken in two way, but somehow blitters-test didn't detect
this because it the bug was in the "tail_head" part of the function,
which is only used when the destination is aligned.

The first patch changes blitters-test to test the more common formats
(a8r8g8b8, r5g6b5, a8, a1, etc.) much more aggressively, which makes the
bug in over_n_8888_0565_ca() show up. The second patch fixes the two
bugs.


Soren