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/*
* Copyright (c) 2023, 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.
*/
#ifndef AOM_AV1_COMMON_ARM_HIGHBD_CONVOLVE_NEON_H_
#define AOM_AV1_COMMON_ARM_HIGHBD_CONVOLVE_NEON_H_
#include <arm_neon.h>
#include "aom_dsp/arm/mem_neon.h"
#include "aom_dsp/arm/transpose_neon.h"
#include "av1/common/convolve.h"
static inline int32x4_t highbd_convolve8_4_s32(
const int16x4_t s0, const int16x4_t s1, const int16x4_t s2,
const int16x4_t s3, const int16x4_t s4, const int16x4_t s5,
const int16x4_t s6, const int16x4_t s7, const int16x8_t y_filter,
const int32x4_t offset) {
const int16x4_t y_filter_lo = vget_low_s16(y_filter);
const int16x4_t y_filter_hi = vget_high_s16(y_filter);
int32x4_t sum = vmlal_lane_s16(offset, s0, y_filter_lo, 0);
sum = vmlal_lane_s16(sum, s1, y_filter_lo, 1);
sum = vmlal_lane_s16(sum, s2, y_filter_lo, 2);
sum = vmlal_lane_s16(sum, s3, y_filter_lo, 3);
sum = vmlal_lane_s16(sum, s4, y_filter_hi, 0);
sum = vmlal_lane_s16(sum, s5, y_filter_hi, 1);
sum = vmlal_lane_s16(sum, s6, y_filter_hi, 2);
sum = vmlal_lane_s16(sum, s7, y_filter_hi, 3);
return sum;
}
static inline uint16x4_t highbd_convolve8_4_sr_s32_s16(
const int16x4_t s0, const int16x4_t s1, const int16x4_t s2,
const int16x4_t s3, const int16x4_t s4, const int16x4_t s5,
const int16x4_t s6, const int16x4_t s7, const int16x8_t y_filter,
const int32x4_t shift_s32, const int32x4_t offset) {
int32x4_t sum =
highbd_convolve8_4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, offset);
sum = vqrshlq_s32(sum, shift_s32);
return vqmovun_s32(sum);
}
// Like above but also perform round shifting and subtract correction term
static inline uint16x4_t highbd_convolve8_4_srsub_s32_s16(
const int16x4_t s0, const int16x4_t s1, const int16x4_t s2,
const int16x4_t s3, const int16x4_t s4, const int16x4_t s5,
const int16x4_t s6, const int16x4_t s7, const int16x8_t y_filter,
const int32x4_t round_shift, const int32x4_t offset,
const int32x4_t correction) {
int32x4_t sum =
highbd_convolve8_4_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, offset);
sum = vsubq_s32(vqrshlq_s32(sum, round_shift), correction);
return vqmovun_s32(sum);
}
static inline void highbd_convolve8_8_s32(
const int16x8_t s0, const int16x8_t s1, const int16x8_t s2,
const int16x8_t s3, const int16x8_t s4, const int16x8_t s5,
const int16x8_t s6, const int16x8_t s7, const int16x8_t y_filter,
const int32x4_t offset, int32x4_t *sum0, int32x4_t *sum1) {
const int16x4_t y_filter_lo = vget_low_s16(y_filter);
const int16x4_t y_filter_hi = vget_high_s16(y_filter);
*sum0 = vmlal_lane_s16(offset, vget_low_s16(s0), y_filter_lo, 0);
*sum0 = vmlal_lane_s16(*sum0, vget_low_s16(s1), y_filter_lo, 1);
*sum0 = vmlal_lane_s16(*sum0, vget_low_s16(s2), y_filter_lo, 2);
*sum0 = vmlal_lane_s16(*sum0, vget_low_s16(s3), y_filter_lo, 3);
*sum0 = vmlal_lane_s16(*sum0, vget_low_s16(s4), y_filter_hi, 0);
*sum0 = vmlal_lane_s16(*sum0, vget_low_s16(s5), y_filter_hi, 1);
*sum0 = vmlal_lane_s16(*sum0, vget_low_s16(s6), y_filter_hi, 2);
*sum0 = vmlal_lane_s16(*sum0, vget_low_s16(s7), y_filter_hi, 3);
*sum1 = vmlal_lane_s16(offset, vget_high_s16(s0), y_filter_lo, 0);
*sum1 = vmlal_lane_s16(*sum1, vget_high_s16(s1), y_filter_lo, 1);
*sum1 = vmlal_lane_s16(*sum1, vget_high_s16(s2), y_filter_lo, 2);
*sum1 = vmlal_lane_s16(*sum1, vget_high_s16(s3), y_filter_lo, 3);
*sum1 = vmlal_lane_s16(*sum1, vget_high_s16(s4), y_filter_hi, 0);
*sum1 = vmlal_lane_s16(*sum1, vget_high_s16(s5), y_filter_hi, 1);
*sum1 = vmlal_lane_s16(*sum1, vget_high_s16(s6), y_filter_hi, 2);
*sum1 = vmlal_lane_s16(*sum1, vget_high_s16(s7), y_filter_hi, 3);
}
// Like above but also perform round shifting and subtract correction term
static inline uint16x8_t highbd_convolve8_8_srsub_s32_s16(
const int16x8_t s0, const int16x8_t s1, const int16x8_t s2,
const int16x8_t s3, const int16x8_t s4, const int16x8_t s5,
const int16x8_t s6, const int16x8_t s7, const int16x8_t y_filter,
const int32x4_t round_shift, const int32x4_t offset,
const int32x4_t correction) {
int32x4_t sum0;
int32x4_t sum1;
highbd_convolve8_8_s32(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, offset,
&sum0, &sum1);
sum0 = vsubq_s32(vqrshlq_s32(sum0, round_shift), correction);
sum1 = vsubq_s32(vqrshlq_s32(sum1, round_shift), correction);
return vcombine_u16(vqmovun_s32(sum0), vqmovun_s32(sum1));
}
static inline int32x4_t highbd_convolve8_2d_scale_horiz4x8_s32(
const int16x8_t s0, const int16x8_t s1, const int16x8_t s2,
const int16x8_t s3, const int16x4_t *filters_lo,
const int16x4_t *filters_hi, const int32x4_t offset) {
int16x4_t s_lo[] = { vget_low_s16(s0), vget_low_s16(s1), vget_low_s16(s2),
vget_low_s16(s3) };
int16x4_t s_hi[] = { vget_high_s16(s0), vget_high_s16(s1), vget_high_s16(s2),
vget_high_s16(s3) };
transpose_array_inplace_u16_4x4((uint16x4_t *)s_lo);
transpose_array_inplace_u16_4x4((uint16x4_t *)s_hi);
int32x4_t sum = vmlal_s16(offset, s_lo[0], filters_lo[0]);
sum = vmlal_s16(sum, s_lo[1], filters_lo[1]);
sum = vmlal_s16(sum, s_lo[2], filters_lo[2]);
sum = vmlal_s16(sum, s_lo[3], filters_lo[3]);
sum = vmlal_s16(sum, s_hi[0], filters_hi[0]);
sum = vmlal_s16(sum, s_hi[1], filters_hi[1]);
sum = vmlal_s16(sum, s_hi[2], filters_hi[2]);
sum = vmlal_s16(sum, s_hi[3], filters_hi[3]);
return sum;
}
static inline uint16x4_t highbd_convolve8_2d_scale_horiz4x8_s32_s16(
const int16x8_t s0, const int16x8_t s1, const int16x8_t s2,
const int16x8_t s3, const int16x4_t *filters_lo,
const int16x4_t *filters_hi, const int32x4_t shift_s32,
const int32x4_t offset) {
int32x4_t sum = highbd_convolve8_2d_scale_horiz4x8_s32(
s0, s1, s2, s3, filters_lo, filters_hi, offset);
sum = vqrshlq_s32(sum, shift_s32);
return vqmovun_s32(sum);
}
#endif // AOM_AV1_COMMON_ARM_HIGHBD_CONVOLVE_NEON_H_