avx512 on Skylake-X (Xeon D-2123IT): 1.19x faster (970±91.2 vs. 817±104.4 decicycles) compared with avx2
avx512icl on Ice Lake (Xeon Silver 4316): 2.52x faster (1350±5.3 vs. 535±9.5 decicycles) compared with avx2 --- libavcodec/x86/v210enc.asm | 99 +++++++++++++++++++++++++++++++++++ libavcodec/x86/v210enc_init.c | 12 +++++ 2 files changed, 111 insertions(+) diff --git a/libavcodec/x86/v210enc.asm b/libavcodec/x86/v210enc.asm index c2ad3d72c0..9cee954619 100644 --- a/libavcodec/x86/v210enc.asm +++ b/libavcodec/x86/v210enc.asm @@ -56,6 +56,36 @@ v210enc_8_permd: dd 0,1,4,5, 1,2,5,6 v210enc_8_mult: db 4, 0, 64, 0 v210enc_8_mask: dd 255<<12 +icl_perm_y: ; vpermb does not set bytes to zero when the high bit is set unlike pshufb +%assign i 0 +%rep 8 + db -1,i+0,i+1,-1 , i+2,i+3,i+4,i+5 + %assign i i+6 +%endrep + +icl_perm_uv: ; vpermb does not set bytes to zero when the high bit is set unlike pshufb +%assign i 0 +%rep 4 + db i+0,i+1,i+32,i+33 , -1,i+2,i+3,-1 , i+34,i+35,i+4,i+5 , -1,i+36,i+37,-1 + %assign i i+6 +%endrep + +icl_perm_y_kmask: times 8 db 0b1111_0110 +icl_perm_uv_kmask: times 8 db 0b0110_1111 + +icl_shift_y: times 10 dw 2,0,4 + times 4 db 0 ; padding to 64 bytes +icl_shift_uv: times 5 dw 0,2,4 + times 2 db 0 ; padding to 32 bytes + times 5 dw 4,0,2 + times 2 db 0 ; padding to 32 bytes + +v210enc_10_permd_y: dd 0,1,2,-1 , 3,4,5,-1 +v210enc_10_shufb_y: db -1,0,1,-1 , 2,3,4,5 , -1,6,7,-1 , 8,9,10,11 +v210enc_10_permd_uv: dd 0,1,4,5 , 1,2,5,6 +v210enc_10_shufb_uv: db 0,1, 8, 9 , -1,2,3,-1 , 10,11,4,5 , -1,12,13,-1 + db 2,3,10,11 , -1,4,5,-1 , 12,13,6,7 , -1,14,15,-1 + SECTION .text %macro v210_planar_pack_10 0 @@ -113,6 +143,75 @@ INIT_YMM avx2 v210_planar_pack_10 %endif +%macro v210_planar_pack_10_new 0 + +cglobal v210_planar_pack_10, 5, 5, 8+2*notcpuflag(avx512icl), y, u, v, dst, width + lea yq, [yq+2*widthq] + add uq, widthq + add vq, widthq + neg widthq + + %if cpuflag(avx512icl) + movu m6, [icl_perm_y] + movu m7, [icl_perm_uv] + kmovq k1, [icl_perm_y_kmask] + kmovq k2, [icl_perm_uv_kmask] + %else + movu m6, [v210enc_10_permd_y] + VBROADCASTI128 m7, [v210enc_10_shufb_y] + movu m8, [v210enc_10_permd_uv] + movu m9, [v210enc_10_shufb_uv] + %endif + movu m2, [icl_shift_y] + movu m3, [icl_shift_uv] + VBROADCASTI128 m4, [v210_enc_min_10] ; only ymm sized + VBROADCASTI128 m5, [v210_enc_max_10] ; only ymm sized + + .loop: + movu m0, [yq + widthq*2] + %if cpuflag(avx512icl) + movu ym1, [uq + widthq*1] + vinserti32x8 zm1, [vq + widthq*1], 1 + %else + movu xm1, [uq + widthq*1] + vinserti128 ym1, [vq + widthq*1], 1 + %endif + CLIPW m0, m4, m5 + CLIPW m1, m4, m5 + + vpsllvw m0, m2 + vpsllvw m1, m3 + %if cpuflag(avx512icl) + vpermb m0{k1}{z}, m6, m0 + vpermb m1{k2}{z}, m7, m1 + %else + vpermd m0, m6, m0 + pshufb m0, m7 + vpermd m1, m8, m1 + pshufb m1, m9 + %endif + por m0, m1 + + movu [dstq], m0 + add dstq, mmsize + add widthq, (mmsize*3)/8 + jl .loop +RET + +%endmacro + +%if ARCH_X86_64 +%if HAVE_AVX512_EXTERNAL +INIT_YMM avx512 +v210_planar_pack_10_new +%endif +%endif + +%if HAVE_AVX512ICL_EXTERNAL +INIT_ZMM avx512icl +v210_planar_pack_10_new +%endif + %macro v210_planar_pack_8 0 ; v210_planar_pack_8(const uint8_t *y, const uint8_t *u, const uint8_t *v, uint8_t *dst, ptrdiff_t width) diff --git a/libavcodec/x86/v210enc_init.c b/libavcodec/x86/v210enc_init.c index 6e9f8c6e61..5d1ebcb893 100644 --- a/libavcodec/x86/v210enc_init.c +++ b/libavcodec/x86/v210enc_init.c @@ -37,6 +37,12 @@ void ff_v210_planar_pack_10_ssse3(const uint16_t *y, const uint16_t *u, void ff_v210_planar_pack_10_avx2(const uint16_t *y, const uint16_t *u, const uint16_t *v, uint8_t *dst, ptrdiff_t width); +void ff_v210_planar_pack_10_avx512(const uint16_t *y, const uint16_t *u, + const uint16_t *v, uint8_t *dst, + ptrdiff_t width); +void ff_v210_planar_pack_10_avx512icl(const uint16_t *y, const uint16_t *u, + const uint16_t *v, uint8_t *dst, + ptrdiff_t width); av_cold void ff_v210enc_init_x86(V210EncContext *s) { @@ -60,10 +66,16 @@ av_cold void ff_v210enc_init_x86(V210EncContext *s) if (EXTERNAL_AVX512(cpu_flags)) { s->sample_factor_8 = 2; s->pack_line_8 = ff_v210_planar_pack_8_avx512; +#ifdef ARCH_X86_64 + s->sample_factor_10 = 2; + s->pack_line_10 = ff_v210_planar_pack_10_avx512; +#endif } if (EXTERNAL_AVX512ICL(cpu_flags)) { s->sample_factor_8 = 4; s->pack_line_8 = ff_v210_planar_pack_8_avx512icl; + s->sample_factor_10 = 4; + s->pack_line_10 = ff_v210_planar_pack_10_avx512icl; } } -- 2.38.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".