1 files changed, 168 insertions, 0 deletions
diff --git a/chromium/third_party/webrtc/base/byteorder.h b/chromium/third_party/webrtc/base/byteorder.h
new file mode 100644
index 00000000000..d907d9e4128
--- /dev/null
+++ b/chromium/third_party/webrtc/base/byteorder.h
@@ -0,0 +1,168 @@
+/*
+ *  Copyright 2004 The WebRTC 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 WEBRTC_BASE_BYTEORDER_H_
+#define WEBRTC_BASE_BYTEORDER_H_
+
+#if defined(WEBRTC_POSIX) && !defined(__native_client__)
+#include <arpa/inet.h>
+#endif
+
+#if defined(WEBRTC_WIN)
+#include <stdlib.h>
+#endif
+
+#include "webrtc/base/basictypes.h"
+
+namespace rtc {
+
+// Reading and writing of little and big-endian numbers from memory
+// TODO: Optimized versions, with direct read/writes of
+// integers in host-endian format, when the platform supports it.
+
+inline void Set8(void* memory, size_t offset, uint8 v) {
+  static_cast<uint8*>(memory)[offset] = v;
+}
+
+inline uint8 Get8(const void* memory, size_t offset) {
+  return static_cast<const uint8*>(memory)[offset];
+}
+
+inline void SetBE16(void* memory, uint16 v) {
+  Set8(memory, 0, static_cast<uint8>(v >> 8));
+  Set8(memory, 1, static_cast<uint8>(v >> 0));
+}
+
+inline void SetBE32(void* memory, uint32 v) {
+  Set8(memory, 0, static_cast<uint8>(v >> 24));
+  Set8(memory, 1, static_cast<uint8>(v >> 16));
+  Set8(memory, 2, static_cast<uint8>(v >> 8));
+  Set8(memory, 3, static_cast<uint8>(v >> 0));
+}
+
+inline void SetBE64(void* memory, uint64 v) {
+  Set8(memory, 0, static_cast<uint8>(v >> 56));
+  Set8(memory, 1, static_cast<uint8>(v >> 48));
+  Set8(memory, 2, static_cast<uint8>(v >> 40));
+  Set8(memory, 3, static_cast<uint8>(v >> 32));
+  Set8(memory, 4, static_cast<uint8>(v >> 24));
+  Set8(memory, 5, static_cast<uint8>(v >> 16));
+  Set8(memory, 6, static_cast<uint8>(v >> 8));
+  Set8(memory, 7, static_cast<uint8>(v >> 0));
+}
+
+inline uint16 GetBE16(const void* memory) {
+  return static_cast<uint16>((Get8(memory, 0) << 8) |
+                             (Get8(memory, 1) << 0));
+}
+
+inline uint32 GetBE32(const void* memory) {
+  return (static_cast<uint32>(Get8(memory, 0)) << 24) |
+      (static_cast<uint32>(Get8(memory, 1)) << 16) |
+      (static_cast<uint32>(Get8(memory, 2)) << 8) |
+      (static_cast<uint32>(Get8(memory, 3)) << 0);
+}
+
+inline uint64 GetBE64(const void* memory) {
+  return (static_cast<uint64>(Get8(memory, 0)) << 56) |
+      (static_cast<uint64>(Get8(memory, 1)) << 48) |
+      (static_cast<uint64>(Get8(memory, 2)) << 40) |
+      (static_cast<uint64>(Get8(memory, 3)) << 32) |
+      (static_cast<uint64>(Get8(memory, 4)) << 24) |
+      (static_cast<uint64>(Get8(memory, 5)) << 16) |
+      (static_cast<uint64>(Get8(memory, 6)) << 8) |
+      (static_cast<uint64>(Get8(memory, 7)) << 0);
+}
+
+inline void SetLE16(void* memory, uint16 v) {
+  Set8(memory, 0, static_cast<uint8>(v >> 0));
+  Set8(memory, 1, static_cast<uint8>(v >> 8));
+}
+
+inline void SetLE32(void* memory, uint32 v) {
+  Set8(memory, 0, static_cast<uint8>(v >> 0));
+  Set8(memory, 1, static_cast<uint8>(v >> 8));
+  Set8(memory, 2, static_cast<uint8>(v >> 16));
+  Set8(memory, 3, static_cast<uint8>(v >> 24));
+}
+
+inline void SetLE64(void* memory, uint64 v) {
+  Set8(memory, 0, static_cast<uint8>(v >> 0));
+  Set8(memory, 1, static_cast<uint8>(v >> 8));
+  Set8(memory, 2, static_cast<uint8>(v >> 16));
+  Set8(memory, 3, static_cast<uint8>(v >> 24));
+  Set8(memory, 4, static_cast<uint8>(v >> 32));
+  Set8(memory, 5, static_cast<uint8>(v >> 40));
+  Set8(memory, 6, static_cast<uint8>(v >> 48));
+  Set8(memory, 7, static_cast<uint8>(v >> 56));
+}
+
+inline uint16 GetLE16(const void* memory) {
+  return static_cast<uint16>((Get8(memory, 0) << 0) |
+                             (Get8(memory, 1) << 8));
+}
+
+inline uint32 GetLE32(const void* memory) {
+  return (static_cast<uint32>(Get8(memory, 0)) << 0) |
+      (static_cast<uint32>(Get8(memory, 1)) << 8) |
+      (static_cast<uint32>(Get8(memory, 2)) << 16) |
+      (static_cast<uint32>(Get8(memory, 3)) << 24);
+}
+
+inline uint64 GetLE64(const void* memory) {
+  return (static_cast<uint64>(Get8(memory, 0)) << 0) |
+      (static_cast<uint64>(Get8(memory, 1)) << 8) |
+      (static_cast<uint64>(Get8(memory, 2)) << 16) |
+      (static_cast<uint64>(Get8(memory, 3)) << 24) |
+      (static_cast<uint64>(Get8(memory, 4)) << 32) |
+      (static_cast<uint64>(Get8(memory, 5)) << 40) |
+      (static_cast<uint64>(Get8(memory, 6)) << 48) |
+      (static_cast<uint64>(Get8(memory, 7)) << 56);
+}
+
+// Check if the current host is big endian.
+inline bool IsHostBigEndian() {
+  static const int number = 1;
+  return 0 == *reinterpret_cast<const char*>(&number);
+}
+
+inline uint16 HostToNetwork16(uint16 n) {
+  uint16 result;
+  SetBE16(&result, n);
+  return result;
+}
+
+inline uint32 HostToNetwork32(uint32 n) {
+  uint32 result;
+  SetBE32(&result, n);
+  return result;
+}
+
+inline uint64 HostToNetwork64(uint64 n) {
+  uint64 result;
+  SetBE64(&result, n);
+  return result;
+}
+
+inline uint16 NetworkToHost16(uint16 n) {
+  return GetBE16(&n);
+}
+
+inline uint32 NetworkToHost32(uint32 n) {
+  return GetBE32(&n);
+}
+
+inline uint64 NetworkToHost64(uint64 n) {
+  return GetBE64(&n);
+}
+
+}  // namespace rtc
+
+#endif  // WEBRTC_BASE_BYTEORDER_H_