mirror of https://git.ffmpeg.org/ffmpeg.git
188 lines
5.7 KiB
NASM
188 lines
5.7 KiB
NASM
;******************************************************************************
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;* V210 SIMD unpack
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;* Copyright (c) 2011 Loren Merritt <lorenm@u.washington.edu>
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;* Copyright (c) 2011 Kieran Kunhya <kieran@kunhya.com>
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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SECTION_RODATA 64
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perm_y:
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db 0,1, 4,5, 6,7, 8,9, 12,13, 14,15, 16,17, 20,21
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db 22,23, 24,25, 28,29, 30,31, 32,33, 36,37, 38,39, 40,41
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db 44,45, 46,47, 48,49, 52,53, 54,55, 56,57, 60,61, 62,63
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times 16 db 0xff ; align to 64
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perm_uv:
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db 0,1, 4,5, 10,11, 16,17, 20,21, 26,27, 32,33, 36,37
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db 42,43, 48,49, 52,53, 58,59
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times 8 db 0xff ; align to 32
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db 2,3, 8,9, 12,13, 18,19, 24,25, 28,29, 34,35, 40,41
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db 44,45, 50,51, 56,57, 60,61
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times 8 db 0xff ; align to 32
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; for AVX2 version only
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v210_luma_permute: dd 0,1,2,4,5,6,7,7 ; 32-byte alignment required
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v210_chroma_shuf2: db 0,1,2,3,4,5,8,9,10,11,12,13,-1,-1,-1,-1
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v210_luma_shuf_avx2: db 0,1,4,5,6,7,8,9,12,13,14,15,-1,-1,-1,-1
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v210_chroma_shuf_avx2: db 0,1,4,5,10,11,-1,-1,2,3,8,9,12,13,-1,-1
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v210_mult: dw 64,4,64,4,64,4,64,4
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v210_luma_shuf: db 8,9,0,1,2,3,12,13,4,5,6,7,-1,-1,-1,-1
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v210_chroma_shuf: db 0,1,8,9,6,7,-1,-1,2,3,4,5,12,13,-1,-1
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shift: times 4 dw 6, 2
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kmask: dw 0x5555, 0xaaaa
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SECTION .text
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%macro v210_planar_unpack 1
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; v210_planar_unpack(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width)
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cglobal v210_planar_unpack_%1, 5, 5, 6 + 2 * cpuflag(avx2), src, y, u, v, w
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movsxdifnidn wq, wd
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lea yq, [yq+2*wq]
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add uq, wq
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add vq, wq
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neg wq
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VBROADCASTI128 m3, [v210_mult]
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%if cpuflag(avx2)
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VBROADCASTI128 m4, [v210_luma_shuf_avx2]
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VBROADCASTI128 m5, [v210_chroma_shuf_avx2]
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mova m6, [v210_luma_permute]
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VBROADCASTI128 m7, [v210_chroma_shuf2]
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%else
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VBROADCASTI128 m4, [v210_luma_shuf]
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VBROADCASTI128 m5, [v210_chroma_shuf]
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%endif
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.loop:
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%ifidn %1, unaligned
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movu m0, [srcq] ; yB v5 yA u5 y9 v4 y8 u4 y7 v3 y6 u3 y5 v2 y4 u2 y3 v1 y2 u1 y1 v0 y0 u0
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%else
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mova m0, [srcq]
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%endif
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pmullw m1, m0, m3 ; shifts the 1st and 3rd sample of each dword into the high 10 bits of each word
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pslld m0, 12 ; shifts the 2nd sample of each dword into the high 10 bits of each dword
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psrlw m1, 6 ; shifts the 1st and 3rd samples back into the low 10 bits
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psrld m0, 22 ; shifts the 2nd sample back into the low 10 bits of each dword
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%if cpuflag(avx2)
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vpblendd m2, m1, m0, 0x55 ; merge the odd dwords from m0 and even from m1 ; yB yA 00 y9 y8 y7 00 y6 y5 y4 00 y3 y2 y1 00 y0
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pshufb m2, m4 ; 00 00 yB yA y9 y8 y7 y6 00 00 y5 y4 y3 y2 y1 y0
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vpermd m2, m6, m2 ; 00 00 00 00 yB yA y9 y8 y7 y6 y5 y4 y3 y2 y1 y0
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movu [yq+2*wq], m2
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vpblendd m1, m1, m0, 0xaa ; merge the even dwords from m0 and odd from m1 ; 00 v5 u5 v4 00 u4 v3 u3 00 v2 u2 v1 00 u1 v0 u0
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pshufb m1, m5 ; 00 v5 v4 v3 00 u5 u4 u3 00 v2 v1 v0 00 u2 u1 u0
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vpermq m1, m1, 0xd8 ; 00 v5 v4 v3 00 v2 v1 v0 00 u5 u4 u3 00 u2 u1 u0
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pshufb m1, m7 ; 00 00 v5 v4 v3 v2 v1 v0 00 00 u5 u4 u3 u2 u1 u0
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movu [uq+wq], xm1
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vextracti128 [vq+wq], m1, 1
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%else
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shufps m2, m1, m0, 0x8d ; 00 y9 00 y6 yB yA y8 y7 00 y3 00 y0 y5 y4 y2 y1
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pshufb m2, m4 ; 00 00 yB yA y9 y8 y7 y6 00 00 y5 y4 y3 y2 y1 y0
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movu [yq+2*wq], m2
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shufps m1, m0, 0xd8 ; 00 v5 00 u4 u5 v4 v3 u3 00 v2 00 u1 u2 v1 v0 u0
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pshufb m1, m5 ; 00 v5 v4 v3 00 u5 u4 u3 00 v2 v1 v0 00 u2 u1 u0
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movq [uq+wq], m1
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movhps [vq+wq], m1
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%endif
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add srcq, mmsize
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add wq, (mmsize*3)/8
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jl .loop
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RET
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%endmacro
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INIT_XMM ssse3
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v210_planar_unpack unaligned
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%if HAVE_AVX_EXTERNAL
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INIT_XMM avx
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v210_planar_unpack unaligned
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%endif
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%if HAVE_AVX2_EXTERNAL
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INIT_YMM avx2
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v210_planar_unpack unaligned
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%endif
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INIT_XMM ssse3
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v210_planar_unpack aligned
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%if HAVE_AVX_EXTERNAL
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INIT_XMM avx
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v210_planar_unpack aligned
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%endif
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%if HAVE_AVX2_EXTERNAL
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INIT_YMM avx2
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v210_planar_unpack aligned
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%endif
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%if HAVE_AVX512ICL_EXTERNAL
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INIT_ZMM avx512icl
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cglobal v210_planar_unpack, 5, 5, 6, src, y, u, v, w
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movsxdifnidn wq, wd
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lea yq, [yq+2*wq]
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add uq, wq
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add vq, wq
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neg wq
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kmovw k1, [kmask] ; odd dword mask
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kmovw k2, [kmask+2] ; even dword mask
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VBROADCASTI128 m0, [shift]
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mova m1, [perm_y]
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mova m2, [perm_uv]
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.loop:
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movu m3, [srcq]
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vpsllvw m4, m3, m0
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pslld m5, m3, 12
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psrlw m4, 6
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psrld m5, 22
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vpblendmd m3{k1}, m4, m5
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vpermb m3, m1, m3 ; could use vpcompressw
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movu [yq+2*wq], m3
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vpblendmd m5{k2}, m4, m5
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vpermb m5, m2, m5
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movu [uq+wq], ym5
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vextracti32x8 [vq+wq], zm5, 1
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add srcq, mmsize
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add wq, (mmsize*3)/8
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jl .loop
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RET
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%endif
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