/*
	QMPlay2 is a video and audio player.
	Copyright (C) 2010-2018  Błażej Szczygieł

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU Lesser 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 Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

#include <VideoAdjustment.hpp>

#include <QString>

class VideoFrame;
class ImgScaler;

class HWAccelInterface
{
public:
	enum Format
	{
		NV12,
		RGB32
	};
	enum Field
	{
		FullFrame,
		TopField,
		BottomField
	};
	enum CopyResult
	{
		CopyNotReady = -1,
		CopyOk,
		CopyError,
	};

	virtual ~HWAccelInterface() = default;

	virtual QString name() const = 0;

	virtual Format getFormat() const = 0;
	virtual bool isTextureRectangle() const
	{
		return false;
	}

	virtual bool lock()
	{
		return true;
	}
	virtual void unlock()
	{}

	virtual bool canInitializeTextures() const
	{
		return true;
	}

	virtual bool init(quint32 *textures) = 0;
	virtual void clear(bool contextChange) = 0;

	virtual CopyResult copyFrame(const VideoFrame &videoFrame, Field field) = 0;

	virtual bool getImage(const VideoFrame &videoFrame, void *dest, ImgScaler *nv12ToRGB32 = nullptr) = 0;

	virtual void getVideAdjustmentCap(VideoAdjustment &videoAdjustmentCap)
	{
		videoAdjustmentCap.zero();
	}
	virtual void setVideAdjustment(const VideoAdjustment &videoAdjustment)
	{
		Q_UNUSED(videoAdjustment)
	}
};
