Add openmax dl routines for review. MUST NOT BE LANDED

third_party/openmax_dl/dl/sp/src/test/aligned_ptr.c

+/*
+ *  Copyright (c) 2013 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.
+ */
+
+#include "dl/sp/src/test/aligned_ptr.h"
+
+#include <stdlib.h>
+
+/* |alignment| is the byte alignment and MUST be a power of two. */
+struct AlignedPtr* AllocAlignedPointer(int alignment, int bytes) {
+  struct AlignedPtr* aligned_ptr;
+  unsigned long raw_address;
+    
+  aligned_ptr = (struct AlignedPtr*) malloc(sizeof(*aligned_ptr));
+  aligned_ptr->raw_pointer_ = malloc(bytes + alignment);
+  raw_address = (unsigned long) aligned_ptr->raw_pointer_;
+  raw_address = (raw_address + alignment - 1) & ~(alignment - 1);
+  aligned_ptr->aligned_pointer_ = (void*) raw_address;
+
+  return aligned_ptr;
+}
+
+void FreeAlignedPointer(struct AlignedPtr* pointer) {
+  free(pointer->raw_pointer_);
+  free(pointer);
+}