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avcodec/hevc: Add add_residual_4/8/16/32 asm opt

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After this patch, the peformance of decoding H265 4K 30FPS 30Mbps
on 3A6000 with 8 threads improves 2fps (45fps-->47fsp).

Reviewed-by: yinshiyou-hf@loongson.cn
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
jinbo 2023-12-28 16:21:00 +08:00 committed by Michael Niedermayer
parent c915dc4c50
commit cfbdda607d
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GPG Key ID: B18E8928B3948D64
4 changed files with 174 additions and 1 deletions
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3
libavcodec/loongarch/Makefile
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@ -27,7 +27,8 @@ LSX-OBJS-$(CONFIG_HEVC_DECODER) += loongarch/hevcdsp_lsx.o \
loongarch/hevc_lpf_sao_lsx.o \
loongarch/hevc_mc_bi_lsx.o \
loongarch/hevc_mc_uni_lsx.o \
loongarch/hevc_mc_uniw_lsx.o
loongarch/hevc_mc_uniw_lsx.o \
loongarch/hevc_add_res.o
LSX-OBJS-$(CONFIG_H264DSP) += loongarch/h264idct.o \
loongarch/h264idct_loongarch.o \
loongarch/h264dsp.o

162
libavcodec/loongarch/hevc_add_res.S Normal file
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@ -0,0 +1,162 @@
/*
* Loongson LSX optimized add_residual functions for HEVC decoding
*
* Copyright (c) 2023 Loongson Technology Corporation Limited
* Contributed by jinbo <jinbo@loongson.cn>
*
* 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 "loongson_asm.S"
/*
* void ff_hevc_add_residual4x4_lsx(uint8_t *dst, const int16_t *res, ptrdiff_t stride)
*/
.macro ADD_RES_LSX_4x4_8
vldrepl.w vr0, a0, 0
add.d t0, a0, a2
vldrepl.w vr1, t0, 0
vld vr2, a1, 0
vilvl.w vr1, vr1, vr0
vsllwil.hu.bu vr1, vr1, 0
vadd.h vr1, vr1, vr2
vssrani.bu.h vr1, vr1, 0
vstelm.w vr1, a0, 0, 0
vstelm.w vr1, t0, 0, 1
.endm
function ff_hevc_add_residual4x4_8_lsx
ADD_RES_LSX_4x4_8
alsl.d a0, a2, a0, 1
addi.d a1, a1, 16
ADD_RES_LSX_4x4_8
endfunc
/*
* void ff_hevc_add_residual8x8_8_lsx(uint8_t *dst, const int16_t *res, ptrdiff_t stride)
*/
.macro ADD_RES_LSX_8x8_8
vldrepl.d vr0, a0, 0
add.d t0, a0, a2
vldrepl.d vr1, t0, 0
add.d t1, t0, a2
vldrepl.d vr2, t1, 0
add.d t2, t1, a2
vldrepl.d vr3, t2, 0
vld vr4, a1, 0
addi.d t3, zero, 16
vldx vr5, a1, t3
addi.d t4, a1, 32
vld vr6, t4, 0
vldx vr7, t4, t3
vsllwil.hu.bu vr0, vr0, 0
vsllwil.hu.bu vr1, vr1, 0
vsllwil.hu.bu vr2, vr2, 0
vsllwil.hu.bu vr3, vr3, 0
vadd.h vr0, vr0, vr4
vadd.h vr1, vr1, vr5
vadd.h vr2, vr2, vr6
vadd.h vr3, vr3, vr7
vssrani.bu.h vr1, vr0, 0
vssrani.bu.h vr3, vr2, 0
vstelm.d vr1, a0, 0, 0
vstelm.d vr1, t0, 0, 1
vstelm.d vr3, t1, 0, 0
vstelm.d vr3, t2, 0, 1
.endm
function ff_hevc_add_residual8x8_8_lsx
ADD_RES_LSX_8x8_8
alsl.d a0, a2, a0, 2
addi.d a1, a1, 64
ADD_RES_LSX_8x8_8
endfunc
/*
* void ff_hevc_add_residual16x16_8_lsx(uint8_t *dst, const int16_t *res, ptrdiff_t stride)
*/
function ff_hevc_add_residual16x16_8_lsx
.rept 8
vld vr0, a0, 0
vldx vr2, a0, a2
vld vr4, a1, 0
addi.d t0, zero, 16
vldx vr5, a1, t0
addi.d t1, a1, 32
vld vr6, t1, 0
vldx vr7, t1, t0
vexth.hu.bu vr1, vr0
vsllwil.hu.bu vr0, vr0, 0
vexth.hu.bu vr3, vr2
vsllwil.hu.bu vr2, vr2, 0
vadd.h vr0, vr0, vr4
vadd.h vr1, vr1, vr5
vadd.h vr2, vr2, vr6
vadd.h vr3, vr3, vr7
vssrani.bu.h vr1, vr0, 0
vssrani.bu.h vr3, vr2, 0
vst vr1, a0, 0
vstx vr3, a0, a2
alsl.d a0, a2, a0, 1
addi.d a1, a1, 64
.endr
endfunc
/*
* void ff_hevc_add_residual32x32_8_lsx(uint8_t *dst, const int16_t *res, ptrdiff_t stride)
*/
function ff_hevc_add_residual32x32_8_lsx
.rept 32
vld vr0, a0, 0
addi.w t0, zero, 16
vldx vr2, a0, t0
vld vr4, a1, 0
vldx vr5, a1, t0
addi.d t1, a1, 32
vld vr6, t1, 0
vldx vr7, t1, t0
vexth.hu.bu vr1, vr0
vsllwil.hu.bu vr0, vr0, 0
vexth.hu.bu vr3, vr2
vsllwil.hu.bu vr2, vr2, 0
vadd.h vr0, vr0, vr4
vadd.h vr1, vr1, vr5
vadd.h vr2, vr2, vr6
vadd.h vr3, vr3, vr7
vssrani.bu.h vr1, vr0, 0
vssrani.bu.h vr3, vr2, 0
vst vr1, a0, 0
vstx vr3, a0, t0
add.d a0, a0, a2
addi.d a1, a1, 64
.endr
endfunc

5
libavcodec/loongarch/hevcdsp_init_loongarch.c
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@ -189,6 +189,11 @@ void ff_hevc_dsp_init_loongarch(HEVCDSPContext *c, const int bit_depth)
c->idct[1] = ff_hevc_idct_8x8_lsx;
c->idct[2] = ff_hevc_idct_16x16_lsx;
c->idct[3] = ff_hevc_idct_32x32_lsx;
c->add_residual[0] = ff_hevc_add_residual4x4_8_lsx;
c->add_residual[1] = ff_hevc_add_residual8x8_8_lsx;
c->add_residual[2] = ff_hevc_add_residual16x16_8_lsx;
c->add_residual[3] = ff_hevc_add_residual32x32_8_lsx;
}
}
}

5
libavcodec/loongarch/hevcdsp_lsx.h
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@ -227,4 +227,9 @@ void ff_hevc_idct_8x8_lsx(int16_t *coeffs, int col_limit);
void ff_hevc_idct_16x16_lsx(int16_t *coeffs, int col_limit);
void ff_hevc_idct_32x32_lsx(int16_t *coeffs, int col_limit);
void ff_hevc_add_residual4x4_8_lsx(uint8_t *dst, const int16_t *res, ptrdiff_t stride);
void ff_hevc_add_residual8x8_8_lsx(uint8_t *dst, const int16_t *res, ptrdiff_t stride);
void ff_hevc_add_residual16x16_8_lsx(uint8_t *dst, const int16_t *res, ptrdiff_t stride);
void ff_hevc_add_residual32x32_8_lsx(uint8_t *dst, const int16_t *res, ptrdiff_t stride);
#endif // #ifndef AVCODEC_LOONGARCH_HEVCDSP_LSX_H