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Stefan Westerfeld
ffmpeg
Commits
c1bb19e2
Commit
c1bb19e2
authored
Sep 26, 2022
by
Rémi Denis-Courmont
Committed by
Lynne
Sep 27, 2022
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Plain Diff
lavu/fixeddsp: RISC-V V butterflies_fixed
parent
cd776629
Changes
5
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5 changed files
with
85 additions
and
2 deletions
+85
-2
fixed_dsp.c
libavutil/fixed_dsp.c
+3
-1
fixed_dsp.h
libavutil/fixed_dsp.h
+1
-0
Makefile
libavutil/riscv/Makefile
+3
-1
fixed_dsp_init.c
libavutil/riscv/fixed_dsp_init.c
+38
-0
fixed_dsp_rvv.S
libavutil/riscv/fixed_dsp_rvv.S
+40
-0
No files found.
libavutil/fixed_dsp.c
View file @
c1bb19e2
...
...
@@ -162,7 +162,9 @@ AVFixedDSPContext * avpriv_alloc_fixed_dsp(int bit_exact)
fdsp
->
butterflies_fixed
=
butterflies_fixed_c
;
fdsp
->
scalarproduct_fixed
=
scalarproduct_fixed_c
;
#if ARCH_X86
#if ARCH_RISCV
ff_fixed_dsp_init_riscv
(
fdsp
);
#elif ARCH_X86
ff_fixed_dsp_init_x86
(
fdsp
);
#endif
...
...
libavutil/fixed_dsp.h
View file @
c1bb19e2
...
...
@@ -161,6 +161,7 @@ typedef struct AVFixedDSPContext {
*/
AVFixedDSPContext
*
avpriv_alloc_fixed_dsp
(
int
strict
);
void
ff_fixed_dsp_init_riscv
(
AVFixedDSPContext
*
fdsp
);
void
ff_fixed_dsp_init_x86
(
AVFixedDSPContext
*
fdsp
);
/**
...
...
libavutil/riscv/Makefile
View file @
c1bb19e2
OBJS
+=
riscv/float_dsp_init.o
\
riscv/fixed_dsp_init.o
\
riscv/cpu.o
RVV-OBJS
+=
riscv/float_dsp_rvv.o
RVV-OBJS
+=
riscv/float_dsp_rvv.o
\
riscv/fixed_dsp_rvv.o
libavutil/riscv/fixed_dsp_init.c
0 → 100644
View file @
c1bb19e2
/*
* 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 <stdint.h>
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/fixed_dsp.h"
void
ff_butterflies_fixed_rvv
(
int
*
v1
,
int
*
v2
,
int
len
);
av_cold
void
ff_fixed_dsp_init_riscv
(
AVFixedDSPContext
*
fdsp
)
{
#if HAVE_RVV
int
flags
=
av_get_cpu_flags
();
if
(
flags
&
AV_CPU_FLAG_RVV_I32
)
fdsp
->
butterflies_fixed
=
ff_butterflies_fixed_rvv
;
#endif
}
libavutil/riscv/fixed_dsp_rvv.S
0 → 100644
View file @
c1bb19e2
/*
* 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 "asm.S"
// (a0) = (a0) + (a1), (a1) = (a0) - (a1) [0..a2-1]
func ff_butterflies_fixed_rvv, zve32x
1:
vsetvli t0, a2, e32, m1, ta, ma
vle32.v v16, (a0)
sub a2, a2, t0
vle32.v v24, (a1)
vadd.vv v0, v16, v24
vsub.vv v8, v16, v24
vse32.v v0, (a0)
sh2add a0, t0, a0
vse32.v v8, (a1)
sh2add a1, t0, a1
bnez a2, 1b
ret
endfunc
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