In particular there are a few extensions that are interesting for us:
* FEAT_DotProd adds 4-way dot-product instructions which are useful in
e.g. ARGBToY.
* FEAT_I8MM adds additional mixed-sign dot-product instructions which
could be useful in e.g. ARGBToUV.
* FEAT_SVE and FEAT_SVE2 add support for the Scalable Vector Extension,
which adds an array of new instructions including new widening loads
and narrowing stores for dealing with mixed-width integer arithmetic
efficiently and predication for avoiding the need for "any" cleanup
loops.
This commit simply adds support for detecting the presence of these
features by extending the existing /proc/cpuinfo parsing, splitting it
into separate Arm and AArch64 functions for simplicity.
Since we have no space left in the bitset entries between Arm and X86
entries, we reuse some of the X86 entries for new AArch64 extensions.
This doesn't seem obviously problematic as long as we avoid setting
kCpuHasX86.
Bug: libyuv:973
Bug: libyuv:977
Change-Id: I8e256225fe12a4ba5da24460f54061e16eab6c57
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5378150
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
This unittest help to test MipsCpuCaps.
Change-Id: I9e0ceeed0e5243446eaafa27e8de4c5f8163b09e
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/2133314
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
Add jpeg to NV21 conversions, unittests and conversions
for I444, I422, I420 and I420 to NV21 needed for internals.
Bug: libyuv:820
Change-Id: Idf0f15f91307e80a82cd23943f6eed5508f13fe2
Tested: out/Release/libyuv_unittest --sandbox_unittests --gtest_filter=*MJ*
Reviewed-on: https://chromium-review.googlesource.com/c/1297710
Reviewed-by: Johann Koenig <johannkoenig@google.com>
Consistently use one style of line endings for the repository
Change-Id: Idd70e3d7f3a7a6641b268a81e51eebf9c705b67d
Reviewed-on: https://chromium-review.googlesource.com/1107877
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
