arm64: filmgrain16: Use sqrdmulh for the scaling*grain multiplication (!1214) · Merge requests · VideoLAN / dav1d

Martin Storsjö requested to merge mstorsjo/dav1d:arm64-fgy-scale-16bit into master Jun 04, 2021

Before:               Cortex A53      A72      A73  Apple M1
fgy_32x32xn_16bpc_neon:  10396.8   8150.8   8718.3  19.5
After:
fgy_32x32xn_16bpc_neon:   9665.1   7558.8   7652.8  19.5

arm64: filmgrain16: Use sqrdmulh for the scaling*grain multiplication

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