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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.
*/
#include <arm_neon.h>
#include <assert.h>
#include "config/aom_config.h"
#include "config/av1_rtcd.h"
#include "aom_dsp/aom_dsp_common.h"
#include "aom_dsp/arm/aom_neon_sve_bridge.h"
#include "aom_dsp/arm/mem_neon.h"
int64_t av1_block_error_sve(const tran_low_t *coeff, const tran_low_t *dqcoeff,
intptr_t block_size, int64_t *ssz) {
int64x2_t error[2] = { vdupq_n_s64(0), vdupq_n_s64(0) };
int64x2_t sqcoeff[2] = { vdupq_n_s64(0), vdupq_n_s64(0) };
assert(block_size >= 16);
assert((block_size % 16) == 0);
do {
const int16x8_t c0 = load_tran_low_to_s16q(coeff);
const int16x8_t c1 = load_tran_low_to_s16q(coeff + 8);
const int16x8_t d0 = load_tran_low_to_s16q(dqcoeff);
const int16x8_t d1 = load_tran_low_to_s16q(dqcoeff + 8);
const int16x8_t diff0 = vsubq_s16(c0, d0);
const int16x8_t diff1 = vsubq_s16(c1, d1);
error[0] = aom_sdotq_s16(error[0], diff0, diff0);
error[1] = aom_sdotq_s16(error[1], diff1, diff1);
sqcoeff[0] = aom_sdotq_s16(sqcoeff[0], c0, c0);
sqcoeff[1] = aom_sdotq_s16(sqcoeff[1], c1, c1);
coeff += 16;
dqcoeff += 16;
block_size -= 16;
} while (block_size != 0);
*ssz = vaddvq_s64(vaddq_s64(sqcoeff[0], sqcoeff[1]));
return vaddvq_s64(vaddq_s64(error[0], error[1]));
}
int64_t av1_block_error_lp_sve(const int16_t *coeff, const int16_t *dqcoeff,
intptr_t block_size) {
if (block_size % 32 == 0) {
int64x2_t error[4] = { vdupq_n_s64(0), vdupq_n_s64(0), vdupq_n_s64(0),
vdupq_n_s64(0) };
do {
const int16x8_t c0 = vld1q_s16(coeff);
const int16x8_t c1 = vld1q_s16(coeff + 8);
const int16x8_t c2 = vld1q_s16(coeff + 16);
const int16x8_t c3 = vld1q_s16(coeff + 24);
const int16x8_t d0 = vld1q_s16(dqcoeff);
const int16x8_t d1 = vld1q_s16(dqcoeff + 8);
const int16x8_t d2 = vld1q_s16(dqcoeff + 16);
const int16x8_t d3 = vld1q_s16(dqcoeff + 24);
const int16x8_t diff0 = vsubq_s16(c0, d0);
const int16x8_t diff1 = vsubq_s16(c1, d1);
const int16x8_t diff2 = vsubq_s16(c2, d2);
const int16x8_t diff3 = vsubq_s16(c3, d3);
error[0] = aom_sdotq_s16(error[0], diff0, diff0);
error[1] = aom_sdotq_s16(error[1], diff1, diff1);
error[2] = aom_sdotq_s16(error[2], diff2, diff2);
error[3] = aom_sdotq_s16(error[3], diff3, diff3);
coeff += 32;
dqcoeff += 32;
block_size -= 32;
} while (block_size != 0);
error[0] = vaddq_s64(error[0], error[1]);
error[2] = vaddq_s64(error[2], error[3]);
error[0] = vaddq_s64(error[0], error[2]);
return vaddvq_s64(error[0]);
}
assert(block_size == 16);
int64x2_t error[2] = { vdupq_n_s64(0), vdupq_n_s64(0) };
do {
const int16x8_t c0 = vld1q_s16(coeff);
const int16x8_t c1 = vld1q_s16(coeff + 8);
const int16x8_t d0 = vld1q_s16(dqcoeff);
const int16x8_t d1 = vld1q_s16(dqcoeff + 8);
const int16x8_t diff0 = vsubq_s16(c0, d0);
const int16x8_t diff1 = vsubq_s16(c1, d1);
error[0] = aom_sdotq_s16(error[0], diff0, diff0);
error[1] = aom_sdotq_s16(error[1], diff1, diff1);
coeff += 16;
dqcoeff += 16;
block_size -= 16;
} while (block_size != 0);
return vaddvq_s64(vaddq_s64(error[0], error[1]));
}