Synchronise with Khronos-private Gitlab branch

The maintenance of the conformance tests is moving to Github.

This commit contains all the changes that have been done in
Gitlab since the first public release of the conformance tests.

Signed-off-by: Kevin Petit <kevin.petit@arm.com>

test_common/harness/parseParameters.cpp

@@ -0,0 +1,42 @@
+//
+// Copyright (c) 2017 The Khronos Group Inc.
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+#include "parseParameters.h"
+#include "errorHelpers.h"
+#include <string.h>
+
+bool is_power_of_two(int number)
+{
+    return number && !(number & (number - 1));
+}
+
+extern void parseWimpyReductionFactor(const char *&arg, int &wimpyReductionFactor)
+{
+    const char *arg_temp = strchr(&arg[1], ']');
+    if (arg_temp != 0)
+    {
+        int new_factor = atoi(&arg[1]);
+        arg = arg_temp; // Advance until ']'
+        if (is_power_of_two(new_factor))
+        {
+            log_info("\n Wimpy reduction factor changed from %d to %d \n", wimpyReductionFactor, new_factor);
+            wimpyReductionFactor = new_factor;
+        }
+        else
+        {
+            log_info("\n WARNING: Incorrect wimpy reduction factor %d, must be power of 2. The default value will be used.\n", new_factor);
+        }
+    }
+}