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Commit Graph

1 Commits (132bc8817e661877853c940fafde41c6a8a96cd5)

Author	SHA1	Message	Date
Martin Storsjö	9f10cff610	aarch64: Add NEON optimizations for 10 and 12 bit vp9 loop filter ... This work is sponsored by, and copyright, Google. This is similar to the arm version, but due to the larger registers on aarch64, we can do 8 pixels at a time for all filter sizes. Examples of runtimes vs the 32 bit version, on a Cortex A53: ARM AArch64 vp9_loop_filter_h_4_8_10bpp_neon: 213.2 172.6 vp9_loop_filter_h_8_8_10bpp_neon: 281.2 244.2 vp9_loop_filter_h_16_8_10bpp_neon: 657.0 444.5 vp9_loop_filter_h_16_16_10bpp_neon: 1280.4 877.7 vp9_loop_filter_mix2_h_44_16_10bpp_neon: 397.7 358.0 vp9_loop_filter_mix2_h_48_16_10bpp_neon: 465.7 429.0 vp9_loop_filter_mix2_h_84_16_10bpp_neon: 465.7 428.0 vp9_loop_filter_mix2_h_88_16_10bpp_neon: 533.7 499.0 vp9_loop_filter_mix2_v_44_16_10bpp_neon: 271.5 244.0 vp9_loop_filter_mix2_v_48_16_10bpp_neon: 330.0 305.0 vp9_loop_filter_mix2_v_84_16_10bpp_neon: 329.0 306.0 vp9_loop_filter_mix2_v_88_16_10bpp_neon: 386.0 365.0 vp9_loop_filter_v_4_8_10bpp_neon: 150.0 115.2 vp9_loop_filter_v_8_8_10bpp_neon: 209.0 175.5 vp9_loop_filter_v_16_8_10bpp_neon: 492.7 345.2 vp9_loop_filter_v_16_16_10bpp_neon: 951.0 682.7 This is significantly faster than the ARM version in almost all cases except for the mix2 functions. Based on START_TIMER/STOP_TIMER wrapping around a few individual functions, the speedup vs C code is around 2-3x. Signed-off-by: Martin Storsjö <martin@martin.st>	8 years ago