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403 results
Show changes
Commits on Source (2)
riscvdir = $(pluginsdir)/riscv
libtransform_rvv_plugin_la_SOURCES = \
isa/riscv/transform.c isa/riscv/rvv_transform.S
libvolume_rvv_plugin_la_SOURCES = isa/riscv/mixer.c isa/riscv/rvv_amplify.S
libvolume_rvv_plugin_la_LIBADD = $(AM_LIBADD) $(LIBM)
if HAVE_RVV
riscv_LTLIBRARIES = \
libtransform_rvv_plugin.la \
libvolume_rvv_plugin.la
endif
/******************************************************************************
* rvv_transform.S: rectangular transforms using RISC-V Vector Extension
******************************************************************************
* Copyright (C) 2022 Rémi Denis-Courmont
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
.option arch, +v
.text
.align 2
.macro transforms, bits, order
.if \bits - (8 << \order)
.error "Mismatched parameters"
.endif
.globl rvv_hflip_\bits
.type rvv_hflip_\bits, %function
// a0:out_base, a1:out_stride, a2:in_base, a3:in_stride
// a4:width, a5:height
rvv_hflip_\bits :
.if \order
slli t4, a4, \order
add a2, a2, t4
.else
add a2, a2, a4
.endif
li t6, -(1 << \order)
add a2, a2, t6
1: mv t0, a0
mv t2, a2
mv t4, a4
2: vsetvli t5, t4, e\bits, m8, ta, ma
sub t4, t4, t5
vlse\bits\().v v0, (t2), t6
.if \order
slli t5, t5, \order
.endif
sub t2, t2, t5
vse\bits\().v v0, (t0)
add t0, t0, t5
bnez t5, 2b
add a5, a5, -1
add a0, a0, a1
add a2, a2, a3
bnez a5, 1b
ret
.size rvv_hflip_\bits, . - rvv_hflip_\bits
.globl rvv_transpose_\bits
.type rvv_transpose_\bits, %function
// a0:out_base, a1:out_stride, a2:in_base, a3:in_stride
// a4:in_width/out_height, a5:in_height/out_width
rvv_transpose_\bits :
1: mv t0, a0
mv t2, a2
mv t4, a4
/* For the sake of locality, the inner loop transposes VL rows at once
* rather than one column. */
2: vsetvli t5, a5, e\bits, m8, ta, ma
vlse\bits\().v v0, (t2), a3
addi t2, t2, (1 << \order)
vse\bits\().v v0, (t0)
addi t4, t4, -1
add t0, t0, a1
bnez t4, 2b
sub a5, a5, t5
.if \order
slli t5, t5, \order
.endif
mul t3, a3, t5 // compute bytes in VL rows
add a0, a0, t5 // VL output columns done
add a2, a2, t3 // VL input rows done
bnez a5, 1b
ret
.size rvv_transpose_\bits, . - rvv_transpose_\bits
.endm // transforms
transforms 8, 0
transforms 16, 1
transforms 32, 2
transforms 64, 3
/*****************************************************************************
* transform.c: RISC-V V video transforms
*****************************************************************************
* Copyright (C) 2022 Rémi Denis-Courmont
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_cpu.h>
#include <vlc_plugin.h>
#include "../../video_chroma/orient.h"
void rvv_hflip_8(void *, ptrdiff_t, const void *, ptrdiff_t, int, int);
void rvv_hflip_16(void *, ptrdiff_t, const void *, ptrdiff_t, int, int);
void rvv_hflip_32(void *, ptrdiff_t, const void *, ptrdiff_t, int, int);
void rvv_hflip_64(void *, ptrdiff_t, const void *, ptrdiff_t, int, int);
void rvv_transpose_8(void *, ptrdiff_t, const void *, ptrdiff_t, int, int);
void rvv_transpose_16(void *, ptrdiff_t, const void *, ptrdiff_t, int, int);
void rvv_transpose_32(void *, ptrdiff_t, const void *, ptrdiff_t, int, int);
void rvv_transpose_64(void *, ptrdiff_t, const void *, ptrdiff_t, int, int);
static void Probe(void *data)
{
if (vlc_CPU_RV_V()) {
struct plane_transforms *const transforms = data;
transforms->hflip[0] = rvv_hflip_8;
transforms->hflip[1] = rvv_hflip_16;
transforms->hflip[2] = rvv_hflip_32;
transforms->hflip[3] = rvv_hflip_64;
transforms->transpose[0] = rvv_transpose_8;
transforms->transpose[1] = rvv_transpose_16;
transforms->transpose[2] = rvv_transpose_32;
transforms->transpose[3] = rvv_transpose_64;
}
}
vlc_module_begin()
set_subcategory(SUBCAT_VIDEO_VFILTER)
set_description("RISC-V V optimisation for video transform")
set_cpu_funcs("video transform", Probe, 10)
vlc_module_end()
......@@ -29,6 +29,7 @@
#include <limits.h>
#include <vlc_common.h>
#include <vlc_cpu.h>
#include <vlc_plugin.h>
#include <vlc_filter.h>
#include <vlc_mouse.h>
......@@ -80,7 +81,7 @@ TRANSFORMS(16)
TRANSFORMS(32)
TRANSFORMS(64)
static const struct plane_transforms transforms = {
static struct plane_transforms transforms = {
{ hflip_8, hflip_16, hflip_32, hflip_64, },
{ transpose_8, transpose_16, transpose_32, transpose_64, },
};
......@@ -295,6 +296,8 @@ static int Open(filter_t *filter)
!= chroma->p[i].h.num * chroma->p[i].w.den)
return VLC_ENOTSUP;
vlc_CPU_functions_init_once("video transform", &transforms);
switch (chroma->pixel_size) {
case 1:
case 2:
......