1 files changed, 53 insertions, 0 deletions
diff --git a/media/libvpx/vpx_ports/mem.h b/media/libvpx/vpx_ports/mem.h
new file mode 100644
index 000000000..7502f9063
--- /dev/null
+++ b/media/libvpx/vpx_ports/mem.h
@@ -0,0 +1,53 @@
+/*
+ *  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_PORTS_MEM_H_
+#define 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
+
+/* Indicates that the usage of the specified variable has been audited to assure
+ * that it's safe to use uninitialized. Silences 'may be used uninitialized'
+ * warnings on gcc.
+ */
+#if defined(__GNUC__) && __GNUC__
+#define UNINITIALIZED_IS_SAFE(x) x=x
+#else
+#define UNINITIALIZED_IS_SAFE(x) x
+#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 ALIGN_POWER_OF_TWO(value, n) \
+    (((value) + ((1 << (n)) - 1)) & ~((1 << (n)) - 1))
+
+#if CONFIG_VP9_HIGHBITDEPTH
+#define CONVERT_TO_SHORTPTR(x) ((uint16_t*)(((uintptr_t)x) << 1))
+#define CONVERT_TO_BYTEPTR(x) ((uint8_t*)(((uintptr_t)x) >> 1))
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+
+#endif  // VPX_PORTS_MEM_H_