1 /* 2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved 3 * 4 * This source code is subject to the terms of the BSD 2 Clause License and 5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License 6 * was not distributed with this source code in the LICENSE file, you can 7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open 8 * Media Patent License 1.0 was not distributed with this source code in the 9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent. 10 */ 11 12 #ifndef AOM_AOM_DSP_X86_TXFM_COMMON_SSE2_H_ 13 #define AOM_AOM_DSP_X86_TXFM_COMMON_SSE2_H_ 14 15 #include <emmintrin.h> 16 #include "aom/aom_integer.h" 17 #include "aom_dsp/x86/synonyms.h" 18 19 #define pair_set_epi16(a, b) \ 20 _mm_set1_epi32((int32_t)(((uint16_t)(a)) | (((uint32_t)(b)) << 16))) 21 22 // Reverse the 8 16 bit words in __m128i mm_reverse_epi16(const __m128i x)23static INLINE __m128i mm_reverse_epi16(const __m128i x) { 24 const __m128i a = _mm_shufflelo_epi16(x, 0x1b); 25 const __m128i b = _mm_shufflehi_epi16(a, 0x1b); 26 return _mm_shuffle_epi32(b, 0x4e); 27 } 28 29 #endif // AOM_AOM_DSP_X86_TXFM_COMMON_SSE2_H_ 30