ffmpeg/libswscale/riscv/rgb2rgb.c
Rémi Denis-Courmont b3825bbe45 riscv: test for assembler support
This should fix the build on LLVM 16 and earlier, at the cost of turning
all non-RVV optimisations off.
2023-12-08 17:21:09 +02:00

67 lines
2.7 KiB
C

/*
* 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 "libswscale/rgb2rgb.h"
void ff_shuffle_bytes_0321_rvv(const uint8_t *src, uint8_t *dst, int src_len);
void ff_shuffle_bytes_2103_rvv(const uint8_t *src, uint8_t *dst, int src_len);
void ff_shuffle_bytes_1230_rvv(const uint8_t *src, uint8_t *dst, int src_len);
void ff_shuffle_bytes_3012_rvv(const uint8_t *src, uint8_t *dst, int src_len);
void ff_shuffle_bytes_3210_rvb(const uint8_t *src, uint8_t *dst, int src_len);
void ff_interleave_bytes_rvv(const uint8_t *src1, const uint8_t *src2,
uint8_t *dst, int width, int height, int s1stride,
int s2stride, int dstride);
void ff_uyvytoyuv422_rvv(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
const uint8_t *src, int width, int height,
int ystride, int uvstride, int src_stride);
void ff_yuyvtoyuv422_rvv(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
const uint8_t *src, int width, int height,
int ystride, int uvstride, int src_stride);
av_cold void rgb2rgb_init_riscv(void)
{
#if HAVE_RV
int flags = av_get_cpu_flags();
#if (__riscv_xlen == 64)
if ((flags & AV_CPU_FLAG_RVB_BASIC) && (flags & AV_CPU_FLAG_RVB_ADDR))
shuffle_bytes_3210 = ff_shuffle_bytes_3210_rvb;
#endif
#if HAVE_RVV
if ((flags & AV_CPU_FLAG_RVV_I32) && (flags & AV_CPU_FLAG_RVB_ADDR)) {
shuffle_bytes_0321 = ff_shuffle_bytes_0321_rvv;
shuffle_bytes_2103 = ff_shuffle_bytes_2103_rvv;
shuffle_bytes_1230 = ff_shuffle_bytes_1230_rvv;
shuffle_bytes_3012 = ff_shuffle_bytes_3012_rvv;
interleaveBytes = ff_interleave_bytes_rvv;
if (flags & AV_CPU_FLAG_RVB_BASIC) {
uyvytoyuv422 = ff_uyvytoyuv422_rvv;
yuyvtoyuv422 = ff_yuyvtoyuv422_rvv;
}
}
#endif
#endif
}