The original src_u calculation of FOURCC_I420 shifted half width if
crop_y is odd.
This CL fixs the problem and also add a test case for it.
Bug: b:115278653
Test: pass libyuv_unittest
Change-Id: Ia9732d22e64e13de26df47726ba44ad1c5a06484
Reviewed-on: https://chromium-review.googlesource.com/c/1258743
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
When loading or storing the data, the unaligned address will greatly degrade
the optimization performance, so non-aligned access instructions are required
on the loongson platform.
Also delete the optimization function:ScaleARGBFilterCols_MMI,
because it degraded the performance.
BUG=libyuv:804
R=fbarchard@chromium.org
Change-Id: If4c15886a21cdcbac7ae8b336292e4549acf1e47
Reviewed-on: https://chromium-review.googlesource.com/1164627
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Currently, libyuv supports MIPS SIMD Arch(MSA),
but libyuv does not supports MultiMedia Instruction(MMI)(such as loongson3a platform).
In order to improve performance of libyuv on loongson3a platform,
this provides optimize 98 functions with mmi.
BUG=libyuv:804
Change-Id: I8947626009efad769b3103a867363ece25d79629
Reviewed-on: https://chromium-review.googlesource.com/1122064
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
