ref: a6531cbc542096303d3a2d3d11fda9c8d963a327
dir: /vpx_dsp/x86/bitdepth_conversion_avx2.h/
/*
* 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_BITDEPTH_CONVERSION_AVX2_H_
#define VPX_DSP_X86_BITDEPTH_CONVERSION_AVX2_H_
#include <immintrin.h>
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
#include "vpx_dsp/vpx_dsp_common.h"
// Load 16 16 bit values. If the source is 32 bits then pack down with
// saturation.
static INLINE __m256i load_tran_low(const tran_low_t *a) {
#if CONFIG_VP9_HIGHBITDEPTH
const __m256i a_low = _mm256_loadu_si256((const __m256i *)a);
return _mm256_packs_epi32(a_low, *(const __m256i *)(a + 8));
#else
return _mm256_loadu_si256((const __m256i *)a);
#endif
}
#endif // VPX_DSP_X86_BITDEPTH_CONVERSION_AVX2_H_