ref: 43cab8f4e84b5baadda093a5a204a746921f0ac0
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_VPX_DSP_X86_BITDEPTH_CONVERSION_AVX2_H_ #define VPX_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); const __m256i a_high = _mm256_loadu_si256((const __m256i *)(a + 8)); return _mm256_packs_epi32(a_low, a_high); #else return _mm256_loadu_si256((const __m256i *)a); #endif } static INLINE void store_tran_low(__m256i a, tran_low_t *b) { #if CONFIG_VP9_HIGHBITDEPTH const __m256i one = _mm256_set1_epi16(1); const __m256i a_hi = _mm256_mulhi_epi16(a, one); const __m256i a_lo = _mm256_mullo_epi16(a, one); const __m256i a_1 = _mm256_unpacklo_epi16(a_lo, a_hi); const __m256i a_2 = _mm256_unpackhi_epi16(a_lo, a_hi); _mm256_storeu_si256((__m256i *)b, a_1); _mm256_storeu_si256((__m256i *)(b + 8), a_2); #else _mm256_storeu_si256((__m256i *)b, a); #endif } #endif // VPX_VPX_DSP_X86_BITDEPTH_CONVERSION_AVX2_H_