加入volk 和 wma 后 编译不通过， 先保存代码

vulkan/framework/timer.cpp

@@ -0,0 +1,47 @@
+/* Copyright (c) 2019, Arm Limited and Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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 "timer.h"
+
+namespace vkb
+{
+Timer::Timer() :
+    start_time{Clock::now()},
+    previous_tick{Clock::now()}
+{
+}
+
+void Timer::start()
+{
+	if (!running)
+	{
+		running    = true;
+		start_time = Clock::now();
+	}
+}
+
+void Timer::lap()
+{
+	lapping  = true;
+	lap_time = Clock::now();
+}
+
+bool Timer::is_running() const
+{
+	return running;
+}
+}        // namespace vkb