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/*
* Copyright (c) 2017, 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 <emmintrin.h> // SSE2
#include <smmintrin.h> /* SSE4.1 */
#include "aom/aom_integer.h"
#include "av1/common/av1_common_int.h"
#include "av1/common/txb_common.h"
#include "aom_dsp/x86/synonyms.h"
void av1_txb_init_levels_sse4_1(const tran_low_t *const coeff, const int width,
const int height, uint8_t *const levels) {
const int stride = width + TX_PAD_HOR;
const __m128i zeros = _mm_setzero_si128();
const int32_t bottom_len = sizeof(*levels) * (TX_PAD_BOTTOM * stride);
uint8_t *bottom_buf = levels + stride * height;
uint8_t *bottom_buf_end = bottom_buf + bottom_len;
do {
_mm_storeu_si128((__m128i *)(bottom_buf), zeros);
bottom_buf += 16;
} while (bottom_buf < bottom_buf_end);
int i = 0;
uint8_t *ls = levels;
const tran_low_t *cf = coeff;
if (width == 4) {
do {
const __m128i coeffA = xx_loadu_128(cf);
const __m128i coeffB = xx_loadu_128(cf + 4);
const __m128i coeffAB = _mm_packs_epi32(coeffA, coeffB);
const __m128i absAB = _mm_abs_epi16(coeffAB);
const __m128i absAB8 = _mm_packs_epi16(absAB, zeros);
const __m128i lsAB = _mm_unpacklo_epi32(absAB8, zeros);
xx_storeu_128(ls, lsAB);
ls += (stride << 1);
cf += (width << 1);
i += 2;
} while (i < height);
} else if (width == 8) {
do {
const __m128i coeffA = xx_loadu_128(cf);
const __m128i coeffB = xx_loadu_128(cf + 4);
const __m128i coeffAB = _mm_packs_epi32(coeffA, coeffB);
const __m128i absAB = _mm_abs_epi16(coeffAB);
const __m128i absAB8 = _mm_packs_epi16(absAB, zeros);
xx_storeu_128(ls, absAB8);
ls += stride;
cf += width;
i += 1;
} while (i < height);
} else {
do {
int j = 0;
do {
const __m128i coeffA = xx_loadu_128(cf);
const __m128i coeffB = xx_loadu_128(cf + 4);
const __m128i coeffC = xx_loadu_128(cf + 8);
const __m128i coeffD = xx_loadu_128(cf + 12);
const __m128i coeffAB = _mm_packs_epi32(coeffA, coeffB);
const __m128i coeffCD = _mm_packs_epi32(coeffC, coeffD);
const __m128i absAB = _mm_abs_epi16(coeffAB);
const __m128i absCD = _mm_abs_epi16(coeffCD);
const __m128i absABCD = _mm_packs_epi16(absAB, absCD);
xx_storeu_128(ls + j, absABCD);
j += 16;
cf += 16;
} while (j < width);
*(int32_t *)(ls + width) = 0;
ls += stride;
i += 1;
} while (i < height);
}
}
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