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-rw-r--r--media/libaom/src/aom_ports/msvc.h75
1 files changed, 75 insertions, 0 deletions
diff --git a/media/libaom/src/aom_ports/msvc.h b/media/libaom/src/aom_ports/msvc.h
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+++ b/media/libaom/src/aom_ports/msvc.h
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+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef AOM_AOM_PORTS_MSVC_H_
+#define AOM_AOM_PORTS_MSVC_H_
+#ifdef _MSC_VER
+
+#include "config/aom_config.h"
+
+#if _MSC_VER < 1900 // VS2015 provides snprintf
+#define snprintf _snprintf
+#endif // _MSC_VER < 1900
+
+#if _MSC_VER < 1800 // VS2013 provides round
+#include <math.h>
+static INLINE double round(double x) {
+ if (x < 0)
+ return ceil(x - 0.5);
+ else
+ return floor(x + 0.5);
+}
+
+static INLINE float roundf(float x) {
+ if (x < 0)
+ return (float)ceil(x - 0.5f);
+ else
+ return (float)floor(x + 0.5f);
+}
+
+static INLINE long lroundf(float x) {
+ if (x < 0)
+ return (long)(x - 0.5f);
+ else
+ return (long)(x + 0.5f);
+}
+#endif // _MSC_VER < 1800
+
+#if HAVE_AVX
+#include <immintrin.h>
+// Note:
+// _mm256_insert_epi16 intrinsics is available from vs2017.
+// We define this macro for vs2015 and earlier. The
+// intrinsics used here are in vs2015 document:
+// https://msdn.microsoft.com/en-us/library/hh977022.aspx
+// Input parameters:
+// a: __m256i,
+// d: int16_t,
+// indx: imm8 (0 - 15)
+#if _MSC_VER <= 1900
+#define _mm256_insert_epi16(a, d, indx) \
+ _mm256_insertf128_si256( \
+ a, \
+ _mm_insert_epi16(_mm256_extractf128_si256(a, indx >> 3), d, indx % 8), \
+ indx >> 3)
+
+static INLINE int _mm256_extract_epi32(__m256i a, const int i) {
+ return a.m256i_i32[i & 7];
+}
+static INLINE __m256i _mm256_insert_epi32(__m256i a, int b, const int i) {
+ __m256i c = a;
+ c.m256i_i32[i & 7] = b;
+ return c;
+}
+#endif // _MSC_VER <= 1900
+#endif // HAVE_AVX
+#endif // _MSC_VER
+#endif // AOM_AOM_PORTS_MSVC_H_