#ifndef DEINTERLACEDFRAME_HH

#define DEINTERLACEDFRAME_HH

#include "FrameSource.hh"

#include <array>

namespace openmsx {

/** Produces a deinterlaced video frame based on two other FrameSources

  * (typically two RawFrames) containing the even and odd field.

  * This class does not copy the data from the input FrameSources.

  */

class DeinterlacedFrame final : public FrameSource

{

public:

	void init(FrameSource* evenField, FrameSource* oddField);

private:

	[[nodiscard]] unsigned getLineWidth(unsigned line) const override;

	[[nodiscard]] std::span<const Pixel> getUnscaledLine(

		unsigned line, std::span<Pixel> helpBuf) const override;

private:

	/** The original frames whose data will be deinterlaced.

	  * The even frame is at index 0, the odd frame at index 1.

	  */

	std::array<FrameSource*, 2> fields;

};

} // namespace openmsx

#endif // DEINTERLACEDFRAME_HH