|
|
|
|
/*
|
|
|
|
|
* 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 "libavutil/riscv/asm.S"
|
|
|
|
|
|
|
|
|
|
func ff_put_pixels_clamped_rvv, zve32x
|
|
|
|
|
vsetivli zero, 8, e16, m1, ta, ma
|
|
|
|
|
vlseg8e16.v v24, (a0)
|
|
|
|
|
1:
|
|
|
|
|
/* RVV only has signed-signed and unsigned-unsigned clipping.
|
|
|
|
|
* We need two steps for signed-to-unsigned clipping. */
|
|
|
|
|
vsetvli t0, zero, e16, m8, ta, ma
|
|
|
|
|
vmax.vx v24, v24, zero
|
|
|
|
|
|
|
|
|
|
vsetivli zero, 8, e8, mf2, ta, ma
|
|
|
|
|
vnclipu.wi v16, v24, 0
|
|
|
|
|
vnclipu.wi v17, v25, 0
|
|
|
|
|
vnclipu.wi v18, v26, 0
|
|
|
|
|
vnclipu.wi v19, v27, 0
|
|
|
|
|
vnclipu.wi v20, v28, 0
|
|
|
|
|
vnclipu.wi v21, v29, 0
|
|
|
|
|
vnclipu.wi v22, v30, 0
|
|
|
|
|
vnclipu.wi v23, v31, 0
|
|
|
|
|
vssseg8e8.v v16, (a1), a2
|
|
|
|
|
ret
|
|
|
|
|
endfunc
|
|
|
|
|
|
|
|
|
|
func ff_put_signed_pixels_clamped_rvv, zve32x
|
|
|
|
|
vsetivli zero, 8, e16, m1, ta, ma
|
|
|
|
|
vlseg8e16.v v24, (a0)
|
|
|
|
|
|
|
|
|
|
li t1, 128
|
|
|
|
|
vsetivli zero, 8, e8, mf2, ta, ma
|
|
|
|
|
vnclip.wi v16, v24, 0
|
|
|
|
|
vnclip.wi v17, v25, 0
|
|
|
|
|
vnclip.wi v18, v26, 0
|
|
|
|
|
vnclip.wi v19, v27, 0
|
|
|
|
|
vnclip.wi v20, v28, 0
|
|
|
|
|
vnclip.wi v21, v29, 0
|
|
|
|
|
vnclip.wi v22, v30, 0
|
|
|
|
|
vnclip.wi v23, v31, 0
|
|
|
|
|
vsetvli t0, zero, e8, m8, ta, ma
|
|
|
|
|
vadd.vx v16, v16, t1
|
|
|
|
|
vsetivli zero, 8, e8, mf2, ta, ma
|
|
|
|
|
vssseg8e8.v v16, (a1), a2
|
|
|
|
|
ret
|
|
|
|
|
endfunc
|
|
|
|
|
|
|
|
|
|
func ff_add_pixels_clamped_rvv, zve32x
|
|
|
|
|
vsetivli zero, 8, e8, mf2, ta, ma
|
|
|
|
|
vlseg8e16.v v24, (a0)
|
|
|
|
|
vlsseg8e8.v v16, (a1), a2
|
|
|
|
|
vwaddu.wv v24, v24, v16
|
|
|
|
|
vwaddu.wv v25, v25, v17
|
|
|
|
|
vwaddu.wv v26, v26, v18
|
|
|
|
|
vwaddu.wv v27, v27, v19
|
|
|
|
|
vwaddu.wv v28, v28, v20
|
|
|
|
|
vwaddu.wv v29, v29, v21
|
|
|
|
|
vwaddu.wv v30, v30, v22
|
|
|
|
|
vwaddu.wv v31, v31, v23
|
|
|
|
|
j 1b
|
|
|
|
|
endfunc
|
