Separate out device information functions

Signed-off-by: Stuart Brady <stuart.brady@arm.com>

test_common/harness/deviceInfo.h

@@ -0,0 +1,38 @@
+//
+// Copyright (c) 2017-2019 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.
+//
+#ifndef _deviceInfo_h
+#define _deviceInfo_h
+
+// Configuration
+#include "../config.hpp"
+
+#include <CL/opencl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+/* Determines if an extension is supported by a device. */
+int is_extension_available(cl_device_id device, const char *extensionName);
+
+/* Returns a newly allocated C string containing the supported extensions list for a device. */
+char *alloc_and_get_device_extensions_string(cl_device_id device);
+
+#ifdef __cplusplus
+}
+#endif // __cplusplus
+
+#endif // _deviceInfo_h