Frank Barchard 149568401f SVE2 row functions needed for multipass image functions
- MergeUVRow_SVE2: Interleaves U and V
 - SplitUVRow_SVE2: De-interleaves UV
 - InterpolateRow_SVE2: Bilinear row interpolation
 - YUY2ToYRow_SVE2, YUY2ToUVRow_SVE2, UYVYToYRow_SVE2, UYVYToUVRow_SVE2
 - HalfMergeUVRow_SVE2: 2:1 vertical averaging of U and V

OnePlus 15 with Qualcomm Snapdragon 8 Elite Gen 5 Oryon V3

Benchmark (1280x720 1000x)     | SVE2   | NEON   | Result
-------------------------------+--------+--------+------------------
TestInterpolatePlane           | 119 ms | 164 ms | SVE2 is 1.38x win
TestInterpolatePlane_16        | 138 ms | 172 ms | SVE2 is 1.25x win
SplitUVPlane_Opt               |  68 ms |  69 ms | SVE2 is 1.01x win
MergeUVPlane_Opt               |  40 ms |  40 ms | Tied
SwapUVPlane_Opt                |  72 ms |  72 ms | Tied
HalfMergeUVPlane_Opt           |  50 ms |  50 ms | Tied
I420ToNV12_Opt                 |  25 ms |  26 ms | SVE2 is faster
I420ToNV21_Opt                 |  26 ms |  26 ms | Tied
YUY2ToNV12_Opt                 |  79 ms |  81 ms | SVE2 is faster
NV21ToNV12_Opt                 |  36 ms |  35 ms | Tied
Android420ToI420ToNV12_Opt     |  53 ms |  53 ms | Tied
Android420ToI420ToNV21_Opt     |  35 ms |  33 ms | NEON is faster
YUY2ToI420_Opt                 |  87 ms |  84 ms | NEON is faster
UYVYToI420_Opt                 |  87 ms |  83 ms | NEON is faster
YUY2ToI422_Opt                 | 101 ms |  97 ms | NEON is faster
UYVYToI422_Opt                 | 101 ms |  97 ms | NEON is faster
UYVYToNV12_Opt                 | 111 ms | 108 ms | NEON is faster
ARGBToNV21_Opt                 | 279 ms | 279 ms | Tied
ABGRToNV21_Opt                 | 279 ms | 280 ms | SVE2 is faster
ARGBToNV12_Opt                 | 285 ms | 280 ms | NEON is faster
ABGRToNV12_Opt                 | 284 ms | 281 ms | NEON is faster

Bug: 42280902
Change-Id: I53f633fe453f2853f7bc9fe17280e938912c4e8f
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/8196068
Reviewed-by: Justin Green <greenjustin@google.com>
Commit-Queue: Frank Barchard <fbarchard@google.com>
2026-08-06 12:40:26 -07:00
..
libyuv SVE2 row functions needed for multipass image functions 2026-08-06 12:40:26 -07:00
libyuv.h NV12 Copy, include scale_uv.h 2020-12-08 18:54:16 +00:00