shithub: libvpx

ref: af08fbb44467fb4e824ba353d64d0905fd5cc023
dir: /vpx_dsp/x86/highbd_inv_txfm_sse4.h/

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/*
 *  Copyright (c) 2017 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#ifndef VPX_DSP_X86_HIGHBD_INV_TXFM_SSE4_H_
#define VPX_DSP_X86_HIGHBD_INV_TXFM_SSE4_H_

#include <smmintrin.h>  // SSE4.1

#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
#include "vpx_dsp/inv_txfm.h"
#include "vpx_dsp/x86/txfm_common_sse2.h"

static INLINE __m128i multiplication_round_shift(const __m128i *const in,
                                                 const __m128i cospi) {
  __m128i t0, t1;
  t0 = _mm_mul_epi32(in[0], cospi);
  t1 = _mm_mul_epi32(in[1], cospi);
  t0 = dct_const_round_shift_64bit(t0);
  t1 = dct_const_round_shift_64bit(t1);
  return pack_4(t0, t1);
}

static INLINE void multiplication_and_add_2_ssse4_1(const __m128i *const in0,
                                                    const __m128i *const in1,
                                                    const __m128i *const cst0,
                                                    const __m128i *const cst1,
                                                    __m128i *const out0,
                                                    __m128i *const out1) {
  __m128i temp1[4], temp2[4];
  extend_64bit(*in0, temp1);
  extend_64bit(*in1, temp2);
  temp1[2] = _mm_mul_epi32(temp1[0], *cst1);
  temp1[3] = _mm_mul_epi32(temp1[1], *cst1);
  temp1[0] = _mm_mul_epi32(temp1[0], *cst0);
  temp1[1] = _mm_mul_epi32(temp1[1], *cst0);
  temp2[2] = _mm_mul_epi32(temp2[0], *cst0);
  temp2[3] = _mm_mul_epi32(temp2[1], *cst0);
  temp2[0] = _mm_mul_epi32(temp2[0], *cst1);
  temp2[1] = _mm_mul_epi32(temp2[1], *cst1);
  temp1[0] = _mm_sub_epi64(temp1[0], temp2[0]);
  temp1[1] = _mm_sub_epi64(temp1[1], temp2[1]);
  temp2[0] = _mm_add_epi64(temp1[2], temp2[2]);
  temp2[1] = _mm_add_epi64(temp1[3], temp2[3]);
  temp1[0] = dct_const_round_shift_64bit(temp1[0]);
  temp1[1] = dct_const_round_shift_64bit(temp1[1]);
  temp2[0] = dct_const_round_shift_64bit(temp2[0]);
  temp2[1] = dct_const_round_shift_64bit(temp2[1]);
  *out0 = pack_4(temp1[0], temp1[1]);
  *out1 = pack_4(temp2[0], temp2[1]);
}

#endif  // VPX_DSP_X86_HIGHBD_INV_TXFM_SSE4_H_