45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
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* Copyright (c) 2017 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef VPX_DSP_X86_BITDEPTH_CONVERSION_AVX2_H_
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#define VPX_DSP_X86_BITDEPTH_CONVERSION_AVX2_H_
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#include <immintrin.h>
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#include "./vpx_config.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_dsp/vpx_dsp_common.h"
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// Load 16 16 bit values. If the source is 32 bits then pack down with
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// saturation.
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static INLINE __m256i load_tran_low(const tran_low_t *a) {
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#if CONFIG_VP9_HIGHBITDEPTH
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const __m256i a_low = _mm256_loadu_si256((const __m256i *)a);
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const __m256i a_high = _mm256_loadu_si256((const __m256i *)(a + 8));
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return _mm256_packs_epi32(a_low, a_high);
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#else
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return _mm256_loadu_si256((const __m256i *)a);
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#endif
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}
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static INLINE void store_tran_low(__m256i a, tran_low_t *b) {
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#if CONFIG_VP9_HIGHBITDEPTH
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const __m256i one = _mm256_set1_epi16(1);
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const __m256i a_hi = _mm256_mulhi_epi16(a, one);
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const __m256i a_lo = _mm256_mullo_epi16(a, one);
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const __m256i a_1 = _mm256_unpacklo_epi16(a_lo, a_hi);
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const __m256i a_2 = _mm256_unpackhi_epi16(a_lo, a_hi);
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_mm256_storeu_si256((__m256i *)b, a_1);
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_mm256_storeu_si256((__m256i *)(b + 8), a_2);
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#else
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_mm256_storeu_si256((__m256i *)b, a);
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#endif
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}
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#endif // VPX_DSP_X86_BITDEPTH_CONVERSION_AVX2_H_
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