1 files changed, 44 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_ports/mem.h b/media/libvpx/libvpx/vpx_ports/mem.h
new file mode 100644
index 0000000000..5eccfe8f50
--- /dev/null
+++ b/media/libvpx/libvpx/vpx_ports/mem.h
@@ -0,0 +1,44 @@
+/*
+ *  Copyright (c) 2010 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_PORTS_MEM_H_
+#define VPX_VPX_PORTS_MEM_H_
+
+#include "vpx_config.h"
+#include "vpx/vpx_integer.h"
+
+#if (defined(__GNUC__) && __GNUC__) || defined(__SUNPRO_C)
+#define DECLARE_ALIGNED(n, typ, val) typ val __attribute__((aligned(n)))
+#elif defined(_MSC_VER)
+#define DECLARE_ALIGNED(n, typ, val) __declspec(align(n)) typ val
+#else
+#warning No alignment directives known for this compiler.
+#define DECLARE_ALIGNED(n, typ, val) typ val
+#endif
+
+#if HAVE_NEON && defined(_MSC_VER)
+#define __builtin_prefetch(x)
+#endif
+
+/* Shift down with rounding */
+#define ROUND_POWER_OF_TWO(value, n) (((value) + (1 << ((n)-1))) >> (n))
+#define ROUND64_POWER_OF_TWO(value, n) (((value) + (1ULL << ((n)-1))) >> (n))
+
+#define ALIGN_POWER_OF_TWO(value, n) \
+  (((value) + ((1 << (n)) - 1)) & ~((1 << (n)) - 1))
+
+#define CONVERT_TO_SHORTPTR(x) ((uint16_t *)(((uintptr_t)(x)) << 1))
+#define CAST_TO_SHORTPTR(x) ((uint16_t *)((uintptr_t)(x)))
+#if CONFIG_VP9_HIGHBITDEPTH
+#define CONVERT_TO_BYTEPTR(x) ((uint8_t *)(((uintptr_t)(x)) >> 1))
+#define CAST_TO_BYTEPTR(x) ((uint8_t *)((uintptr_t)(x)))
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+
+#endif  // VPX_VPX_PORTS_MEM_H_