Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/audaspace/include/plugin/PluginManager.h

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+/*******************************************************************************
+ * Copyright 2009-2016 Jörg Müller
+ *
+ * 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
+
+/**
+ * @file PluginManager.h
+ * @ingroup plugin
+ * The PluginManager class.
+ */
+
+#include "Audaspace.h"
+
+#include <unordered_map>
+#include <string>
+
+AUD_NAMESPACE_BEGIN
+
+/**
+ * This manager provides utilities for plugin loading.
+ */
+class AUD_API PluginManager
+{
+private:
+	static std::unordered_map<std::string, void*> m_plugins;
+
+	// delete copy constructor and operator=
+	PluginManager(const PluginManager&) = delete;
+	PluginManager& operator=(const PluginManager&) = delete;
+	PluginManager() = delete;
+
+public:
+	/**
+	 * Opens a shared library.
+	 * @param path The path to the file.
+	 * @return A handle to the library or nullptr if opening failed.
+	 */
+	static void* openLibrary(const std::string& path);
+
+	/**
+	 * Looks up a symbol from an opened library.
+	 * @param handle The handle to the opened library.
+	 * @param name The name of the symbol to look up.
+	 * @return The symbol or nullptr if the symbol was not found.
+	 */
+	static void* lookupLibrary(void* handle, const std::string& name);
+
+	/**
+	 * Closes an opened shared library.
+	 * @param handle The handle to the library to be closed.
+	 */
+	static void closeLibrary(void* handle);
+
+	/**
+	 * Loads a plugin from a file.
+	 * @param path The path to the file.
+	 * @return Whether the file could successfully be loaded.
+	 */
+	static bool loadPlugin(const std::string& path);
+
+	/**
+	 * Loads all plugins found in a folder.
+	 * @param path The path to the folder containing the plugins.
+	 */
+	static void loadPlugins(const std::string& path = "");
+};
+
+AUD_NAMESPACE_END