QueryPool object creation

Added QueryPool object.

Fixes all tests in:
dEQP-VK.api.object_management.*.query_pool

Change-Id: Ie564848b616714c39961e7a80bc421ec7bb0ef58
Reviewed-on: https://swiftshader-review.googlesource.com/c/23948
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Corentin Wallez <cwallez@google.com>
diff --git a/src/Vulkan/VkQueryPool.hpp b/src/Vulkan/VkQueryPool.hpp
new file mode 100644
index 0000000..9f8072e
--- /dev/null
+++ b/src/Vulkan/VkQueryPool.hpp
@@ -0,0 +1,45 @@
+// Copyright 2018 The SwiftShader Authors. All Rights Reserved.
+//
+// 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 VK_QUERY_POOL_HPP_
+#define VK_QUERY_POOL_HPP_
+
+#include "VkObject.hpp"
+
+namespace vk
+{
+
+class QueryPool : public Object<QueryPool, VkQueryPool>
+{
+public:
+	QueryPool(const VkQueryPoolCreateInfo* pCreateInfo, void* mem);
+	~QueryPool() = delete;
+
+	static size_t ComputeRequiredAllocationSize(const VkQueryPoolCreateInfo* pCreateInfo);
+
+	void getResults(uint32_t pFirstQuery, uint32_t pQueryCount, size_t pDataSize,
+		            void* pData, VkDeviceSize pStride, VkQueryResultFlags pFlags) const;
+
+private:
+	uint32_t queryCount;
+};
+
+static inline QueryPool* Cast(VkQueryPool object)
+{
+	return reinterpret_cast<QueryPool*>(object);
+}
+
+} // namespace vk
+
+#endif // VK_QUERY_POOL_HPP_