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| author | Martin Storsjö <martin@martin.st> | 2020-05-13 14:08:58 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2020-05-15 23:37:55 +0300 |
| commit | 7168adedbc78e5928a6f8b52e326ae979c2e408e (patch) | |
| tree | 03f38c0c1d0b477c338076e9ddfebfc938f74c47 /libavcodec/aarch64/pixblockdsp_neon.S | |
| parent | b252178321fe657465ea03ed35fb24562a002672 (diff) | |
| download | ffmpeg-7168adedbc78e5928a6f8b52e326ae979c2e408e.tar.gz | |
libavcodec: aarch64: Add a NEON implementation of pixblockdsp
Cortex A53 A72 A73
get_pixels_c: 140.7 87.7 72.5
get_pixels_neon: 46.0 20.0 19.5
get_pixels_unaligned_c: 140.7 87.7 73.0
get_pixels_unaligned_neon: 49.2 20.2 26.2
diff_pixels_c: 209.7 133.7 138.7
diff_pixels_neon: 54.2 31.7 23.5
diff_pixels_unaligned_c: 209.7 134.2 139.0
diff_pixels_unaligned_neon: 68.0 27.7 41.7
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavcodec/aarch64/pixblockdsp_neon.S')
| -rw-r--r-- | libavcodec/aarch64/pixblockdsp_neon.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/libavcodec/aarch64/pixblockdsp_neon.S b/libavcodec/aarch64/pixblockdsp_neon.S new file mode 100644 index 0000000000..0277e0476d --- /dev/null +++ b/libavcodec/aarch64/pixblockdsp_neon.S @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2020 Martin Storsjo + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/aarch64/asm.S" + +function ff_get_pixels_neon, export=1 + mov w3, #8 +1: + ld1 {v0.8b}, [x1], x2 + subs w3, w3, #2 + ld1 {v1.8b}, [x1], x2 + uxtl v0.8h, v0.8b + uxtl v1.8h, v1.8b + st1 {v0.8h, v1.8h}, [x0], #32 + b.gt 1b + + ret +endfunc + +function ff_diff_pixels_neon, export=1 + mov w4, #8 +1: + ld1 {v0.8b}, [x1], x3 + ld1 {v1.8b}, [x2], x3 + subs w4, w4, #2 + ld1 {v2.8b}, [x1], x3 + usubl v0.8h, v0.8b, v1.8b + ld1 {v3.8b}, [x2], x3 + usubl v1.8h, v2.8b, v3.8b + st1 {v0.8h, v1.8h}, [x0], #32 + b.gt 1b + + ret +endfunc |