firefox-main/third_party/aom/av1/common/riscv/wiener_convolve_rvv.c

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/*
* Copyright (c) 2026, Alliance for Open Media. All rights reserved.
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <assert.h>
#include <riscv_vector.h>
#include "config/aom_config.h"
#include "config/av1_rtcd.h"
#include "aom_dsp/riscv/mem_rvv.h"
#include "av1/common/convolve.h"
#include "av1/common/restoration.h"
static inline vuint16m1_t wiener_convolve5_8_2d_h_rvv(
vuint8mf2_t t0, vuint8mf2_t t1, vuint8mf2_t t2, vuint8mf2_t t3,
vuint8mf2_t t4, vint16m1_t x_f1, vint16m1_t x_f2, vint16m1_t x_f3,
vint32m2_t round_vec, uint16_t im_max_val, size_t vl) {
// Since the Wiener filter is symmetric about the middle tap (tap 2) add
// mirrored source elements before multiplying filter coefficients.
vint16m1_t s04 =
__riscv_vreinterpret_v_u16m1_i16m1(__riscv_vwaddu_vv_u16m1(t0, t4, vl));
vint16m1_t s13 =
__riscv_vreinterpret_v_u16m1_i16m1(__riscv_vwaddu_vv_u16m1(t1, t3, vl));
vint16m1_t s2 =
__riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl));
// x_filter[0] = 0. (5-tap filters are 0-padded to 7 taps.)
vint32m2_t sum = round_vec;
sum = __riscv_vwmacc_vv_i32m2(sum, x_f1, s04, vl);
sum = __riscv_vwmacc_vv_i32m2(sum, x_f2, s13, vl);
sum = __riscv_vwmacc_vv_i32m2(sum, x_f3, s2, vl);
#if __riscv_v_intrinsic >= 12000
vuint16m1_t res = __riscv_vnclipu_wx_u16m1(
__riscv_vreinterpret_v_i32m2_u32m2(__riscv_vmax_vx_i32m2(sum, 0, vl)),
WIENER_ROUND0_BITS, __RISCV_VXRM_RNU, vl);
#else
vuint16m1_t res = __riscv_vnclipu_wx_u16m1(
__riscv_vreinterpret_v_i32m2_u32m2(__riscv_vmax_vx_i32m2(sum, 0, vl)),
WIENER_ROUND0_BITS, vl);
#endif
return __riscv_vminu_vx_u16m1(res, im_max_val, vl);
}
static inline void convolve_add_src_horiz_5tap_rvv(
const uint8_t *src_ptr, ptrdiff_t src_stride, uint16_t *dst_ptr,
ptrdiff_t dst_stride, int w, int h, const int16_t *x_filter,
int32_t round_val, uint16_t im_max_val) {
const size_t vl_max = __riscv_vsetvlmax_e16m1();
const vint16m1_t x_f1 = __riscv_vmv_v_x_i16m1(x_filter[1], vl_max);
const vint16m1_t x_f2 = __riscv_vmv_v_x_i16m1(x_filter[2], vl_max);
const vint16m1_t x_f3 = __riscv_vmv_v_x_i16m1(x_filter[3], vl_max);
const vint32m2_t round_vec = __riscv_vmv_v_x_i32m2(round_val, vl_max);
int row = 0;
for (; row <= h - 2; row += 2) {
const uint8_t *sa = src_ptr;
const uint8_t *sb = src_ptr + src_stride;
uint16_t *da = dst_ptr;
uint16_t *db = dst_ptr + dst_stride;
int width = w;
while (width > 0) {
const size_t vl = __riscv_vsetvl_e16m1((size_t)width);
vuint8mf2_t a0, a1, a2, a3, a4;
load_u8_8x5(sa, 1, &a0, &a1, &a2, &a3, &a4, vl);
vuint8mf2_t b0, b1, b2, b3, b4;
load_u8_8x5(sb, 1, &b0, &b1, &b2, &b3, &b4, vl);
const vuint16m1_t ra = wiener_convolve5_8_2d_h_rvv(
a0, a1, a2, a3, a4, x_f1, x_f2, x_f3, round_vec, im_max_val, vl);
const vuint16m1_t rb = wiener_convolve5_8_2d_h_rvv(
b0, b1, b2, b3, b4, x_f1, x_f2, x_f3, round_vec, im_max_val, vl);
__riscv_vse16_v_u16m1(da, ra, vl);
__riscv_vse16_v_u16m1(db, rb, vl);
sa += vl;
sb += vl;
da += vl;
db += vl;
width -= (int)vl;
}
src_ptr += 2 * src_stride;
dst_ptr += 2 * dst_stride;
}
for (; row < h; row++) {
const uint8_t *s = src_ptr;
uint16_t *d = dst_ptr;
int width = w;
while (width > 0) {
const size_t vl = __riscv_vsetvl_e16m1((size_t)width);
vuint8mf2_t s0, s1, s2, s3, s4;
load_u8_8x5(s, 1, &s0, &s1, &s2, &s3, &s4, vl);
const vuint16m1_t d0 = wiener_convolve5_8_2d_h_rvv(
s0, s1, s2, s3, s4, x_f1, x_f2, x_f3, round_vec, im_max_val, vl);
__riscv_vse16_v_u16m1(d, d0, vl);
s += vl;
d += vl;
width -= (int)vl;
}
src_ptr += src_stride;
dst_ptr += dst_stride;
}
}
static inline vuint16m1_t wiener_convolve7_8_2d_h_rvv(
vuint8mf2_t t0, vuint8mf2_t t1, vuint8mf2_t t2, vuint8mf2_t t3,
vuint8mf2_t t4, vuint8mf2_t t5, vuint8mf2_t t6, vint16m1_t x_f0,
vint16m1_t x_f1, vint16m1_t x_f2, vint16m1_t x_f3, vint32m2_t round_vec,
uint16_t im_max_val, size_t vl) {
// Since the Wiener filter is symmetric about the middle tap (tap 3) add
// mirrored source elements before multiplying by filter coefficients.
vint16m1_t s06 =
__riscv_vreinterpret_v_u16m1_i16m1(__riscv_vwaddu_vv_u16m1(t0, t6, vl));
vint16m1_t s15 =
__riscv_vreinterpret_v_u16m1_i16m1(__riscv_vwaddu_vv_u16m1(t1, t5, vl));
vint16m1_t s24 =
__riscv_vreinterpret_v_u16m1_i16m1(__riscv_vwaddu_vv_u16m1(t2, t4, vl));
vint16m1_t s3 =
__riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl));
vint32m2_t sum = round_vec;
sum = __riscv_vwmacc_vv_i32m2(sum, x_f0, s06, vl);
sum = __riscv_vwmacc_vv_i32m2(sum, x_f1, s15, vl);
sum = __riscv_vwmacc_vv_i32m2(sum, x_f2, s24, vl);
sum = __riscv_vwmacc_vv_i32m2(sum, x_f3, s3, vl);
#if __riscv_v_intrinsic >= 12000
vuint16m1_t res = __riscv_vnclipu_wx_u16m1(
__riscv_vreinterpret_v_i32m2_u32m2(__riscv_vmax_vx_i32m2(sum, 0, vl)),
WIENER_ROUND0_BITS, __RISCV_VXRM_RNU, vl);
#else
vuint16m1_t res = __riscv_vnclipu_wx_u16m1(
__riscv_vreinterpret_v_i32m2_u32m2(__riscv_vmax_vx_i32m2(sum, 0, vl)),
WIENER_ROUND0_BITS, vl);
#endif
return __riscv_vminu_vx_u16m1(res, im_max_val, vl);
}
static inline void convolve_add_src_horiz_7tap_rvv(
const uint8_t *src_ptr, ptrdiff_t src_stride, uint16_t *dst_ptr,
ptrdiff_t dst_stride, int w, int h, const int16_t *x_filter,
int32_t round_val, uint16_t im_max_val) {
const size_t vl_max = __riscv_vsetvlmax_e16m1();
const vint16m1_t x_f0 = __riscv_vmv_v_x_i16m1(x_filter[0], vl_max);
const vint16m1_t x_f1 = __riscv_vmv_v_x_i16m1(x_filter[1], vl_max);
const vint16m1_t x_f2 = __riscv_vmv_v_x_i16m1(x_filter[2], vl_max);
const vint16m1_t x_f3 = __riscv_vmv_v_x_i16m1(x_filter[3], vl_max);
const vint32m2_t round_vec = __riscv_vmv_v_x_i32m2(round_val, vl_max);
int row = 0;
for (; row <= h - 2; row += 2) {
const uint8_t *sa = src_ptr;
const uint8_t *sb = src_ptr + src_stride;
uint16_t *da = dst_ptr;
uint16_t *db = dst_ptr + dst_stride;
int width = w;
while (width > 0) {
const size_t vl = __riscv_vsetvl_e16m1((size_t)width);
vuint8mf2_t a0, a1, a2, a3, a4, a5, a6;
load_u8_8x7(sa, 1, &a0, &a1, &a2, &a3, &a4, &a5, &a6, vl);
vuint8mf2_t b0, b1, b2, b3, b4, b5, b6;
load_u8_8x7(sb, 1, &b0, &b1, &b2, &b3, &b4, &b5, &b6, vl);
const vuint16m1_t ra =
wiener_convolve7_8_2d_h_rvv(a0, a1, a2, a3, a4, a5, a6, x_f0, x_f1,
x_f2, x_f3, round_vec, im_max_val, vl);
const vuint16m1_t rb =
wiener_convolve7_8_2d_h_rvv(b0, b1, b2, b3, b4, b5, b6, x_f0, x_f1,
x_f2, x_f3, round_vec, im_max_val, vl);
__riscv_vse16_v_u16m1(da, ra, vl);
__riscv_vse16_v_u16m1(db, rb, vl);
sa += vl;
sb += vl;
da += vl;
db += vl;
width -= (int)vl;
}
src_ptr += 2 * src_stride;
dst_ptr += 2 * dst_stride;
}
for (; row < h; row++) {
const uint8_t *s = src_ptr;
uint16_t *d = dst_ptr;
int width = w;
while (width > 0) {
const size_t vl = __riscv_vsetvl_e16m1((size_t)width);
vuint8mf2_t s0, s1, s2, s3, s4, s5, s6;
load_u8_8x7(s, 1, &s0, &s1, &s2, &s3, &s4, &s5, &s6, vl);
const vuint16m1_t d0 =
wiener_convolve7_8_2d_h_rvv(s0, s1, s2, s3, s4, s5, s6, x_f0, x_f1,
x_f2, x_f3, round_vec, im_max_val, vl);
__riscv_vse16_v_u16m1(d, d0, vl);
s += vl;
d += vl;
width -= (int)vl;
}
src_ptr += src_stride;
dst_ptr += dst_stride;
}
}
static inline vuint8mf2_t wiener_convolve5_8_2d_v_rvv(
vint16m1_t s0, vint16m1_t s1, vint16m1_t s2, vint16m1_t s3, vint16m1_t s4,
vint16m1_t y_f1, vint16m1_t y_f2, vint16m1_t y_f3, vint32m2_t round_vec,
size_t vl) {
// Since the Wiener filter is symmetric about the middle tap (tap 2) add
// mirrored source elements before multiplying by filter coefficients.
vint16m1_t s04 = __riscv_vadd_vv_i16m1(s0, s4, vl);
vint16m1_t s13 = __riscv_vadd_vv_i16m1(s1, s3, vl);
vint32m2_t sum = round_vec;
sum = __riscv_vwmacc_vv_i32m2(sum, y_f1, s04, vl);
sum = __riscv_vwmacc_vv_i32m2(sum, y_f2, s13, vl);
sum = __riscv_vwmacc_vv_i32m2(sum, y_f3, s2, vl);
#if __riscv_v_intrinsic >= 12000
vint16m1_t res_16 = __riscv_vnclip_wx_i16m1(
sum, 2 * FILTER_BITS - WIENER_ROUND0_BITS, __RISCV_VXRM_RDN, vl);
return __riscv_vnclipu_wx_u8mf2(
__riscv_vreinterpret_v_i16m1_u16m1(__riscv_vmax_vx_i16m1(res_16, 0, vl)),
0, __RISCV_VXRM_RNU, vl);
#else
vint16m1_t res_16 =
__riscv_vnsra_wx_i16m1(sum, 2 * FILTER_BITS - WIENER_ROUND0_BITS, vl);
return __riscv_vnclipu_wx_u8mf2(
__riscv_vreinterpret_v_i16m1_u16m1(__riscv_vmax_vx_i16m1(res_16, 0, vl)),
0, vl);
#endif
}
static inline void convolve_add_src_vert_5tap_rvv(
const uint16_t *src, ptrdiff_t src_stride, uint8_t *dst,
ptrdiff_t dst_stride, int w, int h, const int16_t *y_filter,
int32_t round_val) {
const size_t vl_max = __riscv_vsetvlmax_e16m1();
const vint16m1_t y_f1 = __riscv_vmv_v_x_i16m1(y_filter[1], vl_max);
const vint16m1_t y_f2 = __riscv_vmv_v_x_i16m1(y_filter[2], vl_max);
const vint16m1_t y_f3 = __riscv_vmv_v_x_i16m1(y_filter[3], vl_max);
const vint32m2_t round_vec = __riscv_vmv_v_x_i32m2(round_val, vl_max);
int width = w;
const int16_t *s_base = (const int16_t *)src;
uint8_t *d_base = dst;
while (width > 0) {
const size_t vl = __riscv_vsetvl_e16m1((size_t)width);
const int16_t *s = s_base;
vint16m1_t s0 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s1 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s2 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s3 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
uint8_t *d = d_base;
int i = 0;
for (; i <= h - 4; i += 4) {
vint16m1_t s4 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s5 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s6 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s7 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vuint8mf2_t d0 = wiener_convolve5_8_2d_v_rvv(s0, s1, s2, s3, s4, y_f1,
y_f2, y_f3, round_vec, vl);
vuint8mf2_t d1 = wiener_convolve5_8_2d_v_rvv(s1, s2, s3, s4, s5, y_f1,
y_f2, y_f3, round_vec, vl);
vuint8mf2_t d2 = wiener_convolve5_8_2d_v_rvv(s2, s3, s4, s5, s6, y_f1,
y_f2, y_f3, round_vec, vl);
vuint8mf2_t d3 = wiener_convolve5_8_2d_v_rvv(s3, s4, s5, s6, s7, y_f1,
y_f2, y_f3, round_vec, vl);
__riscv_vse8_v_u8mf2(d, d0, vl);
d += dst_stride;
__riscv_vse8_v_u8mf2(d, d1, vl);
d += dst_stride;
__riscv_vse8_v_u8mf2(d, d2, vl);
d += dst_stride;
__riscv_vse8_v_u8mf2(d, d3, vl);
d += dst_stride;
s0 = s4;
s1 = s5;
s2 = s6;
s3 = s7;
}
for (; i < h; i++) {
vint16m1_t s4 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vuint8mf2_t d0 = wiener_convolve5_8_2d_v_rvv(s0, s1, s2, s3, s4, y_f1,
y_f2, y_f3, round_vec, vl);
__riscv_vse8_v_u8mf2(d, d0, vl);
d += dst_stride;
s0 = s1;
s1 = s2;
s2 = s3;
s3 = s4;
}
s_base += vl;
d_base += vl;
width -= (int)vl;
}
}
static inline vuint8mf2_t wiener_convolve7_8_2d_v_rvv(
vint16m1_t s0, vint16m1_t s1, vint16m1_t s2, vint16m1_t s3, vint16m1_t s4,
vint16m1_t s5, vint16m1_t s6, vint16m1_t y_f0, vint16m1_t y_f1,
vint16m1_t y_f2, vint16m1_t y_f3, vint32m2_t round_vec, size_t vl) {
// Since the Wiener filter is symmetric about the middle tap (tap 3) add
// mirrored source elements before multiplying by filter coefficients.
vint16m1_t s06 = __riscv_vadd_vv_i16m1(s0, s6, vl);
vint16m1_t s15 = __riscv_vadd_vv_i16m1(s1, s5, vl);
vint16m1_t s24 = __riscv_vadd_vv_i16m1(s2, s4, vl);
vint32m2_t sum = round_vec;
sum = __riscv_vwmacc_vv_i32m2(sum, y_f0, s06, vl);
sum = __riscv_vwmacc_vv_i32m2(sum, y_f1, s15, vl);
sum = __riscv_vwmacc_vv_i32m2(sum, y_f2, s24, vl);
sum = __riscv_vwmacc_vv_i32m2(sum, y_f3, s3, vl);
#if __riscv_v_intrinsic >= 12000
vint16m1_t res_16 = __riscv_vnclip_wx_i16m1(
sum, 2 * FILTER_BITS - WIENER_ROUND0_BITS, __RISCV_VXRM_RDN, vl);
return __riscv_vnclipu_wx_u8mf2(
__riscv_vreinterpret_v_i16m1_u16m1(__riscv_vmax_vx_i16m1(res_16, 0, vl)),
0, __RISCV_VXRM_RNU, vl);
#else
vint16m1_t res_16 =
__riscv_vnsra_wx_i16m1(sum, 2 * FILTER_BITS - WIENER_ROUND0_BITS, vl);
return __riscv_vnclipu_wx_u8mf2(
__riscv_vreinterpret_v_i16m1_u16m1(__riscv_vmax_vx_i16m1(res_16, 0, vl)),
0, vl);
#endif
}
static inline void convolve_add_src_vert_7tap_rvv(
const uint16_t *src, ptrdiff_t src_stride, uint8_t *dst,
ptrdiff_t dst_stride, int w, int h, const int16_t *y_filter,
int32_t round_val) {
const size_t vl_max = __riscv_vsetvlmax_e16m1();
const vint16m1_t y_f0 = __riscv_vmv_v_x_i16m1(y_filter[0], vl_max);
const vint16m1_t y_f1 = __riscv_vmv_v_x_i16m1(y_filter[1], vl_max);
const vint16m1_t y_f2 = __riscv_vmv_v_x_i16m1(y_filter[2], vl_max);
const vint16m1_t y_f3 = __riscv_vmv_v_x_i16m1(y_filter[3], vl_max);
const vint32m2_t round_vec = __riscv_vmv_v_x_i32m2(round_val, vl_max);
int width = w;
const int16_t *s_base = (const int16_t *)src;
uint8_t *d_base = dst;
while (width > 0) {
const size_t vl = __riscv_vsetvl_e16m1((size_t)width);
const int16_t *s = s_base;
vint16m1_t s0 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s1 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s2 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s3 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s4 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s5 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
uint8_t *d = d_base;
int i = 0;
for (; i <= h - 4; i += 4) {
vint16m1_t s6 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s7 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s8 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vint16m1_t s9 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vuint8mf2_t d0 = wiener_convolve7_8_2d_v_rvv(
s0, s1, s2, s3, s4, s5, s6, y_f0, y_f1, y_f2, y_f3, round_vec, vl);
vuint8mf2_t d1 = wiener_convolve7_8_2d_v_rvv(
s1, s2, s3, s4, s5, s6, s7, y_f0, y_f1, y_f2, y_f3, round_vec, vl);
vuint8mf2_t d2 = wiener_convolve7_8_2d_v_rvv(
s2, s3, s4, s5, s6, s7, s8, y_f0, y_f1, y_f2, y_f3, round_vec, vl);
vuint8mf2_t d3 = wiener_convolve7_8_2d_v_rvv(
s3, s4, s5, s6, s7, s8, s9, y_f0, y_f1, y_f2, y_f3, round_vec, vl);
__riscv_vse8_v_u8mf2(d, d0, vl);
d += dst_stride;
__riscv_vse8_v_u8mf2(d, d1, vl);
d += dst_stride;
__riscv_vse8_v_u8mf2(d, d2, vl);
d += dst_stride;
__riscv_vse8_v_u8mf2(d, d3, vl);
d += dst_stride;
s0 = s4;
s1 = s5;
s2 = s6;
s3 = s7;
s4 = s8;
s5 = s9;
}
for (; i < h; i++) {
vint16m1_t s6 = __riscv_vle16_v_i16m1(s, vl);
s += src_stride;
vuint8mf2_t d0 = wiener_convolve7_8_2d_v_rvv(
s0, s1, s2, s3, s4, s5, s6, y_f0, y_f1, y_f2, y_f3, round_vec, vl);
__riscv_vse8_v_u8mf2(d, d0, vl);
d += dst_stride;
s0 = s1;
s1 = s2;
s2 = s3;
s3 = s4;
s4 = s5;
s5 = s6;
}
s_base += vl;
d_base += vl;
width -= (int)vl;
}
}
static inline int get_wiener_filter_taps(const int16_t *filter) {
assert(filter[7] == 0);
if (filter[0] == 0 && filter[6] == 0) {
return WIENER_WIN_REDUCED;
}
return WIENER_WIN;
}
// Wiener filter 2D
// Apply horizontal filter and store in a temporary buffer. When applying
// vertical filter, overwrite the original pixel values.
void av1_wiener_convolve_add_src_rvv(const uint8_t *src, ptrdiff_t src_stride,
uint8_t *dst, ptrdiff_t dst_stride,
const int16_t *x_filter, int x_step_q4,
const int16_t *y_filter, int y_step_q4,
int w, int h,
const WienerConvolveParams *conv_params) {
(void)x_step_q4;
(void)y_step_q4;
(void)conv_params;
assert(w % 8 == 0);
assert(w <= MAX_SB_SIZE && h <= MAX_SB_SIZE);
assert(x_step_q4 == 16 && y_step_q4 == 16);
assert(x_filter[7] == 0 && y_filter[7] == 0);
// For bd == 8, assert horizontal filtering output will not exceed 15-bit:
assert(8 + 1 + FILTER_BITS - conv_params->round_0 <= 15);
const int x_filter_taps = get_wiener_filter_taps(x_filter);
const int y_filter_taps = get_wiener_filter_taps(y_filter);
DECLARE_ALIGNED(16, uint16_t,
im_block[(MAX_SB_SIZE + WIENER_WIN - 1) * MAX_SB_SIZE]);
const int bd = 8;
const uint16_t im_max_val =
(1 << (bd + 1 + FILTER_BITS - WIENER_ROUND0_BITS)) - 1;
const int32_t horiz_round_val = 1 << (bd + FILTER_BITS - 1);
const int32_t vert_round_val =
(1 << (2 * FILTER_BITS - WIENER_ROUND0_BITS - 1)) -
(1 << (bd + (2 * FILTER_BITS - WIENER_ROUND0_BITS) - 1));
const int im_stride = (w <= 32) ? w : MAX_SB_SIZE;
const int im_h = h + y_filter_taps - 1;
const int horiz_offset = x_filter_taps / 2;
const int vert_offset = (y_filter_taps / 2) * (int)src_stride;
int16_t x_filter_5[8];
int16_t y_filter_5[8];
// Add 128 to tap 3. (Needed for rounding.)
for (int i = 0; i < 8; ++i) x_filter_5[i] = x_filter[i];
x_filter_5[3] += 128;
for (int i = 0; i < 8; ++i) y_filter_5[i] = y_filter[i];
y_filter_5[3] += 128;
if (x_filter_taps == WIENER_WIN_REDUCED) {
convolve_add_src_horiz_5tap_rvv(src - horiz_offset - vert_offset,
src_stride, im_block, im_stride, w, im_h,
x_filter_5, horiz_round_val, im_max_val);
} else {
convolve_add_src_horiz_7tap_rvv(src - horiz_offset - vert_offset,
src_stride, im_block, im_stride, w, im_h,
x_filter_5, horiz_round_val, im_max_val);
}
if (y_filter_taps == WIENER_WIN_REDUCED) {
convolve_add_src_vert_5tap_rvv(im_block, im_stride, dst, dst_stride, w, h,
y_filter_5, vert_round_val);
} else {
convolve_add_src_vert_7tap_rvv(im_block, im_stride, dst, dst_stride, w, h,
y_filter_5, vert_round_val);
}
}