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sws/range_convert: R-V V to/from JPEG

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C908   X60
chrRangeFromJpeg_8_c:          2.7    2.5
chrRangeFromJpeg_8_rvv_i32:    1.7    1.5
chrRangeFromJpeg_24_c:         7.5    6.7
chrRangeFromJpeg_24_rvv_i32:   1.7    1.5
chrRangeFromJpeg_128_c:       55.2   34.7
chrRangeFromJpeg_128_rvv_i32:  6.5    3.0
chrRangeFromJpeg_144_c:       44.0   39.2
chrRangeFromJpeg_144_rvv_i32:  7.7    4.5
chrRangeFromJpeg_256_c:       78.2   69.5
chrRangeFromJpeg_256_rvv_i32: 12.2    6.0
chrRangeFromJpeg_512_c:      172.2  138.5
chrRangeFromJpeg_512_rvv_i32: 24.5   11.7
chrRangeToJpeg_8_c:            4.7    4.2
chrRangeToJpeg_8_rvv_i32:      2.0    1.7
chrRangeToJpeg_24_c:          13.7   12.2
chrRangeToJpeg_24_rvv_i32:     2.0    1.5
chrRangeToJpeg_128_c:         72.0   63.7
chrRangeToJpeg_128_rvv_i32:    6.7    3.2
chrRangeToJpeg_144_c:         80.7   71.7
chrRangeToJpeg_144_rvv_i32:    8.5    4.7
chrRangeToJpeg_256_c:        143.2  127.2
chrRangeToJpeg_256_rvv_i32:   13.5    6.5
chrRangeToJpeg_512_c:        285.7  253.7
chrRangeToJpeg_512_rvv_i32:   27.0   13.0
lumRangeFromJpeg_8_c:          1.7    1.5
lumRangeFromJpeg_8_rvv_i32:    1.2    1.0
lumRangeFromJpeg_24_c:         4.2    3.7
lumRangeFromJpeg_24_rvv_i32:   1.2    1.0
lumRangeFromJpeg_128_c:       21.7   19.2
lumRangeFromJpeg_128_rvv_i32:  3.7    1.7
lumRangeFromJpeg_144_c:       24.7   22.0
lumRangeFromJpeg_144_rvv_i32:  4.7    2.7
lumRangeFromJpeg_256_c:       43.7   39.0
lumRangeFromJpeg_256_rvv_i32:  7.5    3.2
lumRangeFromJpeg_512_c:       87.0   77.2
lumRangeFromJpeg_512_rvv_i32: 14.5    6.7
lumRangeToJpeg_8_c:            2.7    2.2
lumRangeToJpeg_8_rvv_i32:      1.0    1.0
lumRangeToJpeg_24_c:           7.2    6.5
lumRangeToJpeg_24_rvv_i32:     1.2    1.0
lumRangeToJpeg_128_c:         37.7   33.7
lumRangeToJpeg_128_rvv_i32:    3.7    2.0
lumRangeToJpeg_144_c:         42.5   37.7
lumRangeToJpeg_144_rvv_i32:    4.7    2.7
lumRangeToJpeg_256_c:         75.0   66.7
lumRangeToJpeg_256_rvv_i32:    7.5    3.5
lumRangeToJpeg_512_c:        149.5  133.0
lumRangeToJpeg_512_rvv_i32:   14.7    7.0
release/7.1
Rémi Denis-Courmont 8 months ago
parent 9dac8495b0
commit 417957ec5e
3 changed files with 144 additions and 1 deletions
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  1. 1
      libswscale/riscv/Makefile
  2. 114
      libswscale/riscv/range_rvv.S
  3. 30
      libswscale/riscv/swscale.c

1
libswscale/riscv/Makefile
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@ -2,4 +2,5 @@ OBJS += riscv/rgb2rgb.o \
riscv/swscale.o
RV-OBJS += riscv/rgb2rgb_rvb.o
RVV-OBJS += riscv/input_rvv.o \
riscv/range_rvv.o \
riscv/rgb2rgb_rvv.o

114
libswscale/riscv/range_rvv.S
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@ -0,0 +1,114 @@
/*
* Copyright © 2024 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_range_lum_to_jpeg_16_rvv, zve32x
li t1, 30189
li t2, 19077
li t3, -39057361
1:
vsetvli t0, a1, e16, m4, ta, ma
vle16.v v0, (a0)
sub a1, a1, t0
vmin.vx v0, v0, t1
vwmul.vx v8, v0, t2
vsetvli zero, zero, e32, m8, ta, ma
vadd.vx v8, v8, t3
vsetvli zero, zero, e16, m4, ta, ma
vnsra.wi v0, v8, 14
vse16.v v0, (a0)
sh1add a0, t0, a0
bnez a1, 1b
ret
endfunc
func ff_range_lum_from_jpeg_16_rvv, zve32x
li t1, 14071
li t2, 33561947
1:
vsetvli t0, a1, e16, m4, ta, ma
vle16.v v0, (a0)
sub a1, a1, t0
vwmul.vx v8, v0, t1
vsetvli zero, zero, e32, m8, ta, ma
vadd.vx v8, v8, t2
vsetvli zero, zero, e16, m4, ta, ma
vnsra.wi v0, v8, 14
vse16.v v0, (a0)
sh1add a0, t0, a0
bnez a1, 1b
ret
endfunc
func ff_range_chr_to_jpeg_16_rvv, zve32x
li t1, 30775
li t2, 4663
li t3, -9289992
1:
vsetvli t0, a2, e16, m4, ta, ma
vle16.v v0, (a0)
sub a2, a2, t0
vle16.v v4, (a1)
vmin.vx v0, v0, t1
vmin.vx v4, v4, t1
vwmul.vx v8, v0, t2
vwmul.vx v16, v4, t2
vsetvli zero, zero, e32, m8, ta, ma
vadd.vx v8, v8, t3
vadd.vx v16, v16, t3
vsetvli zero, zero, e16, m4, ta, ma
vnsra.wi v0, v8, 12
vnsra.wi v4, v16, 12
vse16.v v0, (a0)
sh1add a0, t0, a0
vse16.v v4, (a1)
sh1add a1, t0, a1
bnez a2, 1b
ret
endfunc
func ff_range_chr_from_jpeg_16_rvv, zve32x
li t1, 1799
li t2, 4081085
1:
vsetvli t0, a2, e16, m4, ta, ma
vle16.v v0, (a0)
sub a2, a2, t0
vle16.v v4, (a1)
vwmul.vx v8, v0, t1
vwmul.vx v16, v4, t1
vsetvli zero, zero, e32, m8, ta, ma
vadd.vx v8, v8, t2
vadd.vx v16, v16, t2
vsetvli zero, zero, e16, m4, ta, ma
vnsra.wi v0, v8, 11
vnsra.wi v4, v16, 11
vse16.v v0, (a0)
sh1add a0, t0, a0
vse16.v v0, (a1)
sh1add a1, t0, a1
bnez a2, 1b
ret
endfunc

30
libswscale/riscv/swscale.c
Unescape View File

@ -21,6 +21,33 @@
#include "libavutil/riscv/cpu.h"
#include "libswscale/swscale_internal.h"
void ff_range_lum_to_jpeg_16_rvv(int16_t *, int);
void ff_range_chr_to_jpeg_16_rvv(int16_t *, int16_t *, int);
void ff_range_lum_from_jpeg_16_rvv(int16_t *, int);
void ff_range_chr_from_jpeg_16_rvv(int16_t *, int16_t *, int);
av_cold static void ff_sws_init_range_convert_riscv(SwsContext *c, int flags)
{
#if HAVE_RVV
static const struct {
void (*lum)(int16_t *, int);
void (*chr)(int16_t *, int16_t *, int);
} convs[2] = {
{ ff_range_lum_to_jpeg_16_rvv, ff_range_chr_to_jpeg_16_rvv },
{ ff_range_lum_from_jpeg_16_rvv, ff_range_chr_from_jpeg_16_rvv },
};
if (c->srcRange != c->dstRange && !isAnyRGB(c->dstFormat) &&
c->dstBpc <= 14 &&
(flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
bool from = c->srcRange != 0;
c->lumConvertRange = convs[from].lum;
c->chrConvertRange = convs[from].chr;
}
#endif
}
#define RVV_INPUT(name) \
void ff_##name##ToY_rvv(uint8_t *dst, const uint8_t *src, const uint8_t *, \
const uint8_t *, int w, uint32_t *coeffs, void *); \
@ -40,9 +67,9 @@ RVV_INPUT(rgba32);
av_cold void ff_sws_init_swscale_riscv(SwsContext *c)
{
#if HAVE_RVV
int flags = av_get_cpu_flags();
#if HAVE_RVV
if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
switch (c->srcFormat) {
case AV_PIX_FMT_ABGR:
@ -95,4 +122,5 @@ av_cold void ff_sws_init_swscale_riscv(SwsContext *c)
}
}
#endif
ff_sws_init_range_convert_riscv(c, flags);
}

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