mirror of
https://git.ffmpeg.org/ffmpeg.git
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137 lines
4.2 KiB
NASM
137 lines
4.2 KiB
NASM
;******************************************************************************
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;* x86-optimized yuv2yuvX
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;* Copyright 2020 Google LLC
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;* Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at>
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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 .text
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;-----------------------------------------------------------------------------
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; yuv2yuvX
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;
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; void ff_yuv2yuvX_<opt>(const int16_t *filter, int filterSize,
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; int srcOffset, uint8_t *dest, int dstW,
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; const uint8_t *dither, int offset);
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;
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;-----------------------------------------------------------------------------
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%macro YUV2YUVX_FUNC 0
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cglobal yuv2yuvX, 7, 7, 8, filter, filterSize, src, dest, dstW, dither, offset
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%if notcpuflag(sse3)
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%define movr mova
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%define unroll 1
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%else
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%define movr movdqu
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%define unroll 2
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%endif
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movsxdifnidn dstWq, dstWd
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movsxdifnidn offsetq, offsetd
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movsxdifnidn srcq, srcd
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%if cpuflag(avx2)
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vpbroadcastq m3, [ditherq]
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%else
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movq xm3, [ditherq]
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%endif ; avx2
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cmp offsetd, 0
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jz .offset
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; offset != 0 path.
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psrlq m5, m3, $18
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psllq m3, m3, $28
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por m3, m3, m5
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.offset:
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add offsetq, srcq
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movd xm1, filterSized
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SPLATW m1, xm1, 0
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pxor m0, m0, m0
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mov filterSizeq, filterq
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mov srcq, [filterSizeq]
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punpcklbw m3, m0
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psllw m1, m1, 3
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paddw m3, m3, m1
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psraw m7, m3, 4
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.outerloop:
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mova m4, m7
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mova m3, m7
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%if cpuflag(sse3)
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mova m6, m7
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mova m1, m7
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%endif
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.loop:
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%if cpuflag(avx2)
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vpbroadcastq m0, [filterSizeq + 8]
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%elif cpuflag(sse3)
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movddup m0, [filterSizeq + 8]
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%else
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mova m0, [filterSizeq + 8]
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%endif
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pmulhw m2, m0, [srcq + offsetq * 2]
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pmulhw m5, m0, [srcq + offsetq * 2 + mmsize]
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paddw m3, m3, m2
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paddw m4, m4, m5
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%if cpuflag(sse3)
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pmulhw m2, m0, [srcq + offsetq * 2 + 2 * mmsize]
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pmulhw m5, m0, [srcq + offsetq * 2 + 3 * mmsize]
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paddw m6, m6, m2
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paddw m1, m1, m5
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%endif
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add filterSizeq, $10
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mov srcq, [filterSizeq]
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test srcq, srcq
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jnz .loop
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psraw m3, m3, 3
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psraw m4, m4, 3
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%if cpuflag(sse3)
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psraw m6, m6, 3
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psraw m1, m1, 3
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%endif
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packuswb m3, m3, m4
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%if cpuflag(sse3)
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packuswb m6, m6, m1
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%endif
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mov srcq, [filterq]
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%if cpuflag(avx2)
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vpermq m3, m3, 216
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vpermq m6, m6, 216
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%endif
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movr [destq + offsetq], m3
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%if cpuflag(sse3)
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movr [destq + offsetq + mmsize], m6
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%endif
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add offsetq, mmsize * unroll
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mov filterSizeq, filterq
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cmp offsetq, dstWq
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jb .outerloop
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REP_RET
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%endmacro
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INIT_MMX mmx
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YUV2YUVX_FUNC
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INIT_MMX mmxext
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YUV2YUVX_FUNC
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INIT_XMM sse3
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YUV2YUVX_FUNC
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%if HAVE_AVX2_EXTERNAL
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INIT_YMM avx2
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YUV2YUVX_FUNC
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%endif
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