Update libyuv to r397

Change-Id: I70f5a527de52ae8ae80b189873c9a094035dfa2c
Signed-off-by: Hendrik Dahlkamp <hendrik@google.com>
diff --git a/files/unit_test/unit_test.h b/files/unit_test/unit_test.h
index cac30c7..62521e8 100644
--- a/files/unit_test/unit_test.h
+++ b/files/unit_test/unit_test.h
@@ -1,5 +1,5 @@
 /*
- *  Copyright (c) 2011 The LibYuv project authors. All Rights Reserved.
+ *  Copyright 2011 The LibYuv 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
@@ -8,20 +8,67 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef UINIT_TEST_H_
-#define UINIT_TEST_H_
+#ifndef UNIT_TEST_UNIT_TEST_H_
+#define UNIT_TEST_UNIT_TEST_H_
 
 #include <gtest/gtest.h>
 
+#define align_buffer_16(var, size)                                             \
+  uint8* var;                                                                  \
+  uint8* var##_mem;                                                            \
+  var##_mem = reinterpret_cast<uint8*>(malloc((size) + 15));                   \
+  var = reinterpret_cast<uint8*>                                               \
+        ((reinterpret_cast<intptr_t>(var##_mem) + 15) & ~15);
+
+#define free_aligned_buffer_16(var) \
+  free(var##_mem);  \
+  var = 0;
+
+
+#define align_buffer_page_end(var, size)                                       \
+  uint8* var;                                                                  \
+  uint8* var##_mem;                                                            \
+  var##_mem = reinterpret_cast<uint8*>(malloc(((size) + 4095) & ~4095));       \
+  var = var##_mem + (-(size) & 4095);
+
+#define free_aligned_buffer_page_end(var) \
+  free(var##_mem);  \
+  var = 0;
+
+#ifdef WIN32
+#include <windows.h>
+static inline double get_time() {
+  LARGE_INTEGER t, f;
+  QueryPerformanceCounter(&t);
+  QueryPerformanceFrequency(&f);
+  return static_cast<double>(t.QuadPart) / static_cast<double>(f.QuadPart);
+}
+
+#define random rand
+#define srandom srand
+#else
+
+#include <sys/time.h>
+#include <sys/resource.h>
+
+static inline double get_time() {
+  struct timeval t;
+  struct timezone tzp;
+  gettimeofday(&t, &tzp);
+  return t.tv_sec + t.tv_usec * 1e-6;
+}
+#endif
+
 class libyuvTest : public ::testing::Test {
  protected:
   libyuvTest();
-  virtual void SetUp();
-  virtual void TearDown();
 
-  const int _rotate_max_w;
-  const int _rotate_max_h;
+  const int rotate_max_w_;
+  const int rotate_max_h_;
 
+  int benchmark_iterations_;
+  const int benchmark_width_;
+  const int benchmark_height_;
 };
 
-#endif // UNIT_TEST_H_
+#endif  // UNIT_TEST_UNIT_TEST_H_