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Code Issues Releases Activity

lavc/exrdsp: R-V V reoder_pixels

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This commit is contained in:
Rémi Denis-Courmont 2023-10-05 19:09:07 +03:00
parent f39a8790e1
commit 3c6516330f
5 changed files with 82 additions and 1 deletions
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4
libavcodec/exrdsp.c
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@ -51,7 +51,9 @@ av_cold void ff_exrdsp_init(ExrDSPContext *c)
c->reorder_pixels = reorder_pixels_scalar;
c->predictor = predictor_scalar;
#if ARCH_X86
#if ARCH_RISCV
ff_exrdsp_init_riscv(c);
#elif ARCH_X86
ff_exrdsp_init_x86(c);
#endif
}

1
libavcodec/exrdsp.h
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@ -28,6 +28,7 @@ typedef struct ExrDSPContext {
} ExrDSPContext;
void ff_exrdsp_init(ExrDSPContext *c);
void ff_exrdsp_init_riscv(ExrDSPContext *c);
void ff_exrdsp_init_x86(ExrDSPContext *c);
#endif /* AVCODEC_EXRDSP_H */

2
libavcodec/riscv/Makefile
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@ -10,6 +10,8 @@ RVV-OBJS-$(CONFIG_AUDIODSP) += riscv/audiodsp_rvv.o
OBJS-$(CONFIG_BSWAPDSP) += riscv/bswapdsp_init.o \
riscv/bswapdsp_rvb.o
RVV-OBJS-$(CONFIG_BSWAPDSP) += riscv/bswapdsp_rvv.o
OBJS-$(CONFIG_EXR_DECODER) += riscv/exrdsp_init.o
RVV-OBJS-$(CONFIG_EXR_DECODER) += riscv/exrdsp_rvv.o
OBJS-$(CONFIG_FMTCONVERT) += riscv/fmtconvert_init.o
RVV-OBJS-$(CONFIG_FMTCONVERT) += riscv/fmtconvert_rvv.o
OBJS-$(CONFIG_G722DSP) += riscv/g722dsp_init.o

38
libavcodec/riscv/exrdsp_init.c Normal file
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@ -0,0 +1,38 @@
/*
* Copyright © 2023 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 <stdint.h>
#include "libavutil/cpu.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/exrdsp.h"
void ff_reorder_pixels_rvv(uint8_t *dst, const uint8_t *src, ptrdiff_t size);
av_cold void ff_exrdsp_init_riscv(ExrDSPContext *c)
{
#if HAVE_RVV
int flags = av_get_cpu_flags();
if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
c->reorder_pixels = ff_reorder_pixels_rvv;
}
#endif
}

38
libavcodec/riscv/exrdsp_rvv.S Normal file
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@ -0,0 +1,38 @@
/*
* Copyright © 2023 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 "libavutil/riscv/asm.S"
func ff_reorder_pixels_rvv, zve32x
srai a2, a2, 1
add t1, a1, a2
1:
vsetvli t0, a2, e8, m4, ta, ma
vle8.v v0, (a1)
sub a2, a2, t0
vle8.v v4, (t1)
add a1, t0, a1
vsseg2e8.v v0, (a0)
add t1, t0, t1
sh1add a0, t0, a0
bnez a2, 1b
ret
endfunc