init

app/plugins/data_path/data_path.cpp

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+/* Copyright (c) 2022-2025, Arm Limited and Contributors
+ * Copyright (c) 2025, NVIDIA CORPORATION. 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 "data_path.h"
+
+#include "filesystem/filesystem.hpp"
+
+namespace plugins
+{
+DataPath::DataPath() :
+    DataPathTags("Data Path Override",
+                 "Specify the folder containing the sample data folders.",
+                 {vkb::Hook::OnAppStart},
+                 {},
+                 {{"data-path", "Folder containing data files"}})
+{
+}
+
+bool DataPath::handle_option(std::deque<std::string> &arguments)
+{
+	assert(!arguments.empty() && (arguments[0].substr(0, 2) == "--"));
+	std::string option = arguments[0].substr(2);
+	if (option == "data-path")
+	{
+		if (arguments.size() < 2)
+		{
+			LOGE("Option \"data-path\" is missing the actual data path!");
+			return false;
+		}
+		std::string data_path = arguments[1];
+
+		auto fs = vkb::filesystem::get();
+		fs->set_external_storage_directory(data_path + "/");
+
+		arguments.pop_front();
+		arguments.pop_front();
+		return true;
+	}
+	return false;
+}
+}        // namespace plugins

app/plugins/data_path/data_path.h

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+/* Copyright (c) 2022-2025, Arm Limited and Contributors
+ * Copyright (c) 2025, NVIDIA CORPORATION. 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.
+ */
+
+#pragma once
+
+#include "platform/plugins/plugin_base.h"
+
+namespace plugins
+{
+using DataPathTags = vkb::PluginBase<vkb::tags::Passive>;
+
+/**
+ * @brief Data path override
+ *
+ * Controls the root path used to find data files
+ *
+ * Usage: vulkan_sample sample afbc --data-path <folder>
+ *
+ */
+class DataPath : public DataPathTags
+{
+  public:
+	DataPath();
+
+	virtual ~DataPath() = default;
+
+	bool handle_option(std::deque<std::string> &arguments) override;
+};
+}        // namespace plugins