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lavc/pixblockdsp: RISC-V V 8-bit get_pixels & get_pixels_unaligned

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Rémi Denis-Courmont 2022-09-27 23:04:25 +03:00 committed by Lynne
parent 2746329ce2
commit 676b08cb70
3 changed files with 50 additions and 0 deletions
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1
libavcodec/riscv/Makefile
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@ -9,5 +9,6 @@ OBJS-$(CONFIG_IDCTDSP) += riscv/idctdsp_init.o
RVV-OBJS-$(CONFIG_IDCTDSP) += riscv/idctdsp_rvv.o
OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_init.o \
riscv/pixblockdsp_rvi.o
RVV-OBJS-$(CONFIG_PIXBLOCKDSP) += riscv/pixblockdsp_rvv.o
OBJS-$(CONFIG_VORBIS_DECODER) += riscv/vorbisdsp_init.o
RVV-OBJS-$(CONFIG_VORBIS_DECODER) += riscv/vorbisdsp_rvv.o

12
libavcodec/riscv/pixblockdsp_init.c
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@ -20,8 +20,10 @@
#include <stdint.h>
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/riscv/cpu.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/pixblockdsp.h"
@ -30,6 +32,9 @@ void ff_get_pixels_8_rvi(int16_t *block, const uint8_t *pixels,
void ff_get_pixels_16_rvi(int16_t *block, const uint8_t *pixels,
ptrdiff_t stride);
void ff_get_pixels_8_rvv(int16_t *block, const uint8_t *pixels,
ptrdiff_t stride);
av_cold void ff_pixblockdsp_init_riscv(PixblockDSPContext *c,
AVCodecContext *avctx,
unsigned high_bit_depth)
@ -42,4 +47,11 @@ av_cold void ff_pixblockdsp_init_riscv(PixblockDSPContext *c,
else
c->get_pixels = ff_get_pixels_8_rvi;
}
#if HAVE_RVV
if ((cpu_flags & AV_CPU_FLAG_RVV_I32) && ff_get_rv_vlenb() >= 16) {
if (!high_bit_depth)
c->get_pixels_unaligned = c->get_pixels = ff_get_pixels_8_rvv;
}
#endif
}

37
libavcodec/riscv/pixblockdsp_rvv.S Normal file
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@ -0,0 +1,37 @@
/*
* Copyright © 2022 Rémi Denis-Courmont.
*
* 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 "config.h"
#include "libavutil/riscv/asm.S"
func ff_get_pixels_8_rvv, zve32x
vsetivli zero, 8, e8, mf2, ta, ma
vlsseg8e8.v v16, (a1), a2
vwcvtu.x.x.v v8, v16
vwcvtu.x.x.v v9, v17
vwcvtu.x.x.v v10, v18
vwcvtu.x.x.v v11, v19
vwcvtu.x.x.v v12, v20
vwcvtu.x.x.v v13, v21
vwcvtu.x.x.v v14, v22
vwcvtu.x.x.v v15, v23
vsseg8e16.v v8, (a0)
ret
endfunc