namespace ScreenConnect;

public abstract class SimpleScreenDecoder : SimpleScreenCodec
{
	private IMultiCallCoder coder;

	protected SimpleScreenDecoder(int bitsPerPixel, int rowPadding, IMultiCallCoder coder)
		: base(bitsPerPixel, rowPadding)
	{
		this.coder = coder;
	}

	protected override void Dispose(bool disposing)
	{
		base.Dispose(disposing);
		if (disposing)
		{
			coder.DisposeQuietly();
		}
	}

	protected unsafe void ReadRowData(byte* data, int rowLength, bool isLastRow)
	{
		ReadThroughCoder(coder, data, rowLength, isLastRow);
	}

	protected unsafe override void Process(byte* data, int width, int height, int stride)
	{
		int rowLength = GetRowLength(width);
		fixed (byte* workingBuffer = GetWorkingBuffer(rowLength))
		{
			Process(data, width, height, stride, workingBuffer, rowLength, base.RowPadding != 0);
		}
	}

	protected unsafe abstract void Process(byte* data, int width, int height, int stride, byte* workingBuffer, int rowLength, bool hasPadding);
}