7c6fec672f
immintrin.h -> emmintrin.h fixes build where newer intrinsics are unavailable Change-Id: I79311b39bfa782fc2abeb45884ecb417050cb9f8
41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
/*
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* Copyright (c) 2014 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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#include <emmintrin.h>
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#include "vpx_ports/mem.h"
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unsigned int vp9_avg_8x8_sse2(const uint8_t *s, int p) {
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__m128i s0, s1, u0;
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unsigned int avg = 0;
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u0 = _mm_setzero_si128();
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s0 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s)), u0);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 2 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 3 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 4 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 5 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 6 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s1 = _mm_unpacklo_epi8(_mm_loadl_epi64((const __m128i *)(s + 7 * p)), u0);
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s0 = _mm_adds_epu16(s0, s1);
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s0 = _mm_adds_epu16(s0, _mm_srli_si128(s0, 8));
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s0 = _mm_adds_epu16(s0, _mm_srli_epi64(s0, 32));
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s0 = _mm_adds_epu16(s0, _mm_srli_epi64(s0, 16));
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avg = _mm_extract_epi16(s0, 0);
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return (avg + 32) >> 6;
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}
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