checkasm: Implement helpers for defining and checking padded rects

This backports similar functionality from dav1d, from commits
35d1d011fda4a92bcaf42d30ed137583b27d7f6d and
d130da9c315d5a1d3968d278bbee2238ad9051e7.

This allows detecting writes out of bounds, on all 4 sides of
the intended destination rectangle.

The bounds checking also can optionally allow small overwrites
(up to a specified alignment), while still checking for larger
overwrites past the intended allowed region.

Signed-off-by: Martin Storsjö <martin@martin.st>

0 files changed, 0 insertions, 0 deletions