intrapred_x86.h - mozsearch

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/*

 * Copyright (c) 2020, 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_AOM_DSP_X86_INTRAPRED_X86_H_

#define AOM_AOM_DSP_X86_INTRAPRED_X86_H_

#include <emmintrin.h>  // SSE2

#include "aom/aom_integer.h"

#include "config/aom_config.h"

static inline __m128i dc_sum_16_sse2(const uint8_t *ref) {

  __m128i x = _mm_load_si128((__m128i const *)ref);

  const __m128i zero = _mm_setzero_si128();

  x = _mm_sad_epu8(x, zero);

  const __m128i high = _mm_unpackhi_epi64(x, x);

  return _mm_add_epi16(x, high);

static inline __m128i dc_sum_32_sse2(const uint8_t *ref) {

  __m128i x0 = _mm_load_si128((__m128i const *)ref);

  __m128i x1 = _mm_load_si128((__m128i const *)(ref + 16));

  const __m128i zero = _mm_setzero_si128();

  x0 = _mm_sad_epu8(x0, zero);

  x1 = _mm_sad_epu8(x1, zero);

  x0 = _mm_add_epi16(x0, x1);

  const __m128i high = _mm_unpackhi_epi64(x0, x0);

  return _mm_add_epi16(x0, high);

#endif  // AOM_AOM_DSP_X86_INTRAPRED_X86_H_