зеркало из https://github.com/mozilla/gecko-dev.git
76 строки
2.2 KiB
C
76 строки
2.2 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef AOM_AOM_PORTS_MSVC_H_
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#define AOM_AOM_PORTS_MSVC_H_
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#ifdef _MSC_VER
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#include "config/aom_config.h"
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#if _MSC_VER < 1900 // VS2015 provides snprintf
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#define snprintf _snprintf
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#endif // _MSC_VER < 1900
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#if _MSC_VER < 1800 // VS2013 provides round
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#include <math.h>
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static INLINE double round(double x) {
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if (x < 0)
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return ceil(x - 0.5);
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else
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return floor(x + 0.5);
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}
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static INLINE float roundf(float x) {
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if (x < 0)
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return (float)ceil(x - 0.5f);
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else
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return (float)floor(x + 0.5f);
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}
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static INLINE long lroundf(float x) {
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if (x < 0)
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return (long)(x - 0.5f);
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else
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return (long)(x + 0.5f);
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}
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#endif // _MSC_VER < 1800
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#if HAVE_AVX
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#include <immintrin.h>
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// Note:
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// _mm256_insert_epi16 intrinsics is available from vs2017.
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// We define this macro for vs2015 and earlier. The
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// intrinsics used here are in vs2015 document:
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// https://msdn.microsoft.com/en-us/library/hh977022.aspx
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// Input parameters:
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// a: __m256i,
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// d: int16_t,
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// indx: imm8 (0 - 15)
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#if _MSC_VER <= 1900
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#define _mm256_insert_epi16(a, d, indx) \
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_mm256_insertf128_si256( \
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a, \
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_mm_insert_epi16(_mm256_extractf128_si256(a, indx >> 3), d, indx % 8), \
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indx >> 3)
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static INLINE int _mm256_extract_epi32(__m256i a, const int i) {
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return a.m256i_i32[i & 7];
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}
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static INLINE __m256i _mm256_insert_epi32(__m256i a, int b, const int i) {
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__m256i c = a;
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c.m256i_i32[i & 7] = b;
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return c;
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}
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#endif // _MSC_VER <= 1900
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#endif // HAVE_AVX
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#endif // _MSC_VER
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#endif // AOM_AOM_PORTS_MSVC_H_
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