test: Add a new benchmarker targeting affine operations

Affine-bench is written by following the example of lowlevel-blt-bench.

Affine-bench differs from lowlevel-blt-bench in the following:
- does not test different sized operations fitting to specific caches,
  destination is always 1920x1080
- allows defining the affine transformation parameters
- carefully computes operation extents to hit the COVER_CLIP fast paths

Original version by Ben Avison. Changes by Pekka in v3:
- commit message
- style fixes
- more comments
- refactoring (e.g. bench_info_t)
- help output tweak

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Ben Avison <bavison@riscosopen.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
index 0f114966..7da6b6f7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,6 +46,7 @@ demos/tri-test
 pixman/pixman-srgb.c
 pixman/pixman-version.h
 test/a1-trap-test
+test/affine-bench
 test/affine-test
 test/alpha-loop
 test/alphamap