build: split the engine into liboakengine.so; worker drops the UI entirely

Physical split: app/{audio,cli,codec,common,config,node,pluginSupport, render,task,timeline,undo,tool,shaders} plus coreengine, version and ui/icons+colorcoding move to a new top-level engine/ tree, built as liboakengine.so (shared). The render backends (oakgl/oakvulkan) move with it and link the engine library instead of embedding a static render-core subset (libolive-rendercore is gone). - oak-render-worker now links liboakengine instead of the whole libolive-editor object set: 336MB -> 2.9MB, no Qt Widgets UI - the editor links liboakengine for the engine and keeps only UI objects in libolive-editor - install/packaging: GNUInstallDirs libdir on Linux, bundle copy on macOS, oakengine.dll staged for NSIS, AppImage validation entry - fix backend lookup for the new layout: DynamicRenderer searched ../app but backends now live in engine/; a stale pre-split liboakgl in the build tree got dlopened instead, re-initialized and later destroyed the interposed engine statics (full-suite segfault at DialogSequenceParameterTab, found via gdb watchpoint)
2026-07-20 03:23:28 +08:00
parent 026ff94b5e
commit 28c4426236
604 changed files with 243 additions and 172 deletions
@@ -0,0 +1,141 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2022 Olive Team
+  Modifications Copyright (C) 2025 mikesolar
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#ifndef OAK_TASKMANAGER_H
+#define OAK_TASKMANAGER_H
+
+#include <QtConcurrent/QtConcurrent>
+#include <QVector>
+#include <QUndoCommand>
+
+#include "task/task.h"
+
+namespace olive
+{
+
+/**
+ * @brief An object that manages background Task objects, handling their start and end
+ *
+ * TaskManager handles the life of a Task object. After a new Task is created, it should be sent to TaskManager through
+ * AddTask(). TaskManager will take ownership of the task and add it to a queue until it system resources are available
+ * for it to run. Currently, TaskManager will run no more Tasks than there are threads on the system (one task per
+ * thread). As Tasks finished, TaskManager will start the next in the queue.
+ */
+class TaskManager : public QObject {
+	Q_OBJECT
+public:
+	/**
+   * @brief TaskManager Constructor
+   */
+	TaskManager();
+
+	/**
+   * @brief TaskManager Destructor
+   *
+   * Ensures all Tasks are deleted
+   */
+	virtual ~TaskManager();
+
+	static void create_instance();
+
+	static void destroy_instance();
+
+	static TaskManager *instance();
+
+	int get_task_count() const;
+
+	Task *get_first_task() const;
+
+	void cancel_task_and_wait(Task *t);
+
+public slots:
+	/**
+   * @brief Add a new Task
+   *
+   * Adds a new Task to the queue. If there are available threads to run it, it'll also run immediately. Otherwise,
+   * it'll be placed into the queue and run when resources are available.
+   *
+   * NOTE: This function is NOT thread-safe and is currently intended to only be used from the main/GUI thread.
+   *
+   * NOTE: A Task object should only be added once. Adding the same Task object more than once will result in undefined
+   * behavior.
+   *
+   * @param t
+   *
+   * The task to add and run. TaskManager takes ownership of this Task and will be responsible for freeing it.
+   */
+	void add_task(Task *t);
+
+	void cancel_task(Task *t);
+
+signals:
+	/**
+   * @brief Signal emitted when a Task is added by AddTask()
+   *
+   * @param t
+   *
+   * Task that was added
+   */
+	void task_added(Task *t);
+
+	/**
+   * @brief Signal emitted when any change to the running task list has been made
+   */
+	void task_list_changed();
+
+	/**
+   * @brief Signal emitted when a task is deleted
+   */
+	void task_removed(Task *t);
+
+	/**
+   * @brief Signal emitted when a task fails
+   */
+	void task_failed(Task *t);
+
+private:
+	/**
+   * @brief Internal task array
+   */
+	QHash<QFutureWatcher<bool> *, Task *> tasks_;
+
+	/**
+   * @brief Internal list of failed tasks
+   */
+	std::list<Task *> failed_tasks_;
+
+	/**
+   * @brief Task thread pool
+   */
+	QThreadPool thread_pool_;
+
+	/**
+   * @brief TaskManager singleton instance_
+   */
+	static TaskManager *instance_;
+
+private slots:
+	void task_finished();
+};
+
+}
+
+#endif // OAK_TASKMANAGER_H