4 Commits

Author SHA1 Message Date
George Steed
a37e6bc81b [AArch64] Re-enable SME only for Linux and new versions of Clang
This was previously disabled in
679e851f653866a49e21f69fe8380bd20123f0ee, so re-enable it but only for
Linux where SME is known to work correctly.

Change-Id: I2626b03f3854b27162df1b55fc6767e02ffe318d
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5802958
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Reviewed-by: Justin Green <greenjustin@google.com>
2024-09-23 09:29:53 +00:00
George Steed
b5f9d7cb76 [AArch64] Add SME implementation of TransposeUVWxH
We can make use of the ZA tile register to do the transpose and
de-interleaving of UV components without any explicit permute
instructions: the tile is loaded horizontally placing UV components into
alternative columns, then we can just store the independent components
vertically.

Change-Id: I67bd82dc840a43888290be1c9db8a3c05f16d730
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5703588
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-07-19 12:15:40 +00:00
George Steed
15ecca81f7 [AArch64] Add SME implementation of TransposeWxH
We can make use of the ZA tile register to do the transpose without any
explicit permute instructions: just load the tile horizontally and store
it vertically.

Change-Id: I1c31e89af52a408e3491e62d6c9e6fee41b1b80a
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5703587
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-07-19 12:14:39 +00:00
George Steed
a68b959873 [AArch64] Add initial build system support for SME
Extend both the CMake and BUILD.gn configurations to support building a
library with the Arm Scalable Matrix Extension (SME). Add an initial
(empty) rotate_sme.cc source file to populate the library for now.

Change-Id: Icd4bd6a8ce72ba132299b00c99478a18a85d869a
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5588664
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-06-08 23:32:41 +00:00