/*
 * This file is part of OpenTTD.
 * OpenTTD 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, version 2.
 * OpenTTD 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 OpenTTD. If not, see <https://www.gnu.org/licenses/old-licenses/gpl-2.0>.
 */

/** @file null_v.h Base of the video driver that doesn't blit. */

#ifndef VIDEO_NULL_H
#define VIDEO_NULL_H

#include "video_driver.hpp"

/** The null video driver. */
class VideoDriver_Null : public VideoDriver {
private:
	uint ticks = 0; ///< Amount of ticks to run.

public:
	std::optional<std::string_view> Start(const StringList &param) override;

	void Stop() override;

	void MakeDirty(int left, int top, int width, int height) override;

	void MainLoop() override;

	bool ChangeResolution(int w, int h) override;

	bool ToggleFullscreen(bool fullscreen) override;
	std::string_view GetName() const override { return "null"; }
	bool HasGUI() const override { return false; }
};

/** Factory the null video driver. */
class FVideoDriver_Null : public DriverFactoryBase {
public:
	FVideoDriver_Null() : DriverFactoryBase(Driver::DT_VIDEO, 0, "null", "Null Video Driver") {}
	std::unique_ptr<Driver> CreateInstance() const override { return std::make_unique<VideoDriver_Null>(); }
};

#endif /* VIDEO_NULL_H */
