txfm_common_sse2.h

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/*

 * Copyright (c) 2016, 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_TXFM_COMMON_SSE2_H_

#define AOM_AOM_DSP_X86_TXFM_COMMON_SSE2_H_

#include <emmintrin.h>

#include "aom/aom_integer.h"

#include "aom_dsp/x86/synonyms.h"

#define pair_set_epi16(a, b) \

  _mm_set1_epi32((int32_t)(((uint16_t)(a)) | (((uint32_t)(uint16_t)(b)) << 16)))

// Reverse the 8 16 bit words in __m128i

static inline __m128i mm_reverse_epi16(const __m128i x) {

  const __m128i a = _mm_shufflelo_epi16(x, 0x1b);

  const __m128i b = _mm_shufflehi_epi16(a, 0x1b);

  return _mm_shuffle_epi32(b, 0x4e);

#define octa_set_epi16(a, b, c, d, e, f, g, h)                           \

  _mm_setr_epi16((int16_t)(a), (int16_t)(b), (int16_t)(c), (int16_t)(d), \

                 (int16_t)(e), (int16_t)(f), (int16_t)(g), (int16_t)(h))

#endif  // AOM_AOM_DSP_X86_TXFM_COMMON_SSE2_H_