init

framework/core/allocated.cpp

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+/* Copyright (c) 2021-2024, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2024, Bradley Austin Davis. All rights reserved.
+ *
+ * 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 "allocated.h"
+#include "common/error.h"
+
+namespace vkb
+{
+
+namespace allocated
+{
+
+VmaAllocator &get_memory_allocator()
+{
+	static VmaAllocator memory_allocator = VK_NULL_HANDLE;
+	return memory_allocator;
+}
+
+void init(const VmaAllocatorCreateInfo &create_info)
+{
+	auto &allocator = get_memory_allocator();
+	if (allocator == VK_NULL_HANDLE)
+	{
+		VkResult result = vmaCreateAllocator(&create_info, &allocator);
+		if (result != VK_SUCCESS)
+		{
+			throw VulkanException{result, "Cannot create allocator"};
+		}
+	}
+}
+
+void shutdown()
+{
+	auto &allocator = get_memory_allocator();
+	if (allocator != VK_NULL_HANDLE)
+	{
+		VmaTotalStatistics stats;
+		vmaCalculateStatistics(allocator, &stats);
+		LOGI("Total device memory leaked: {} bytes.", stats.total.statistics.allocationBytes);
+		vmaDestroyAllocator(allocator);
+		allocator = VK_NULL_HANDLE;
+	}
+}
+
+}        // namespace allocated
+}        // namespace vkb