package ch.werner_randelshofer.gui.image;

/*
Copyright (C) 1999 Werner Randelshofer
werner.randelshofer@mythen.ch
http://www.mythen.ch/w.randelshofer/
    
Permission to use this release of ANIMKeyFrame is hereby
granted without fee provided that the complete copyright
notice and this permission notice appear in all copies
and in supporting documentation.
*/

import java.awt.image.ColorModel;
import java.awt.image.IndexColorModel;
import java.awt.image.DirectColorModel;
import java.util.Hashtable;

/**
 * @author	Werner Randelshofer, Staldenmattweg 2, CH-6405 Immensee, Switzerland
 * @version	1999-02-14	Created.
 */
public class ANIMKeyFrame
extends ANIMFrame
	{
	private ColorModel colorModel_;
	private byte[] data_;
	private boolean isCompressed_;
	
	public ANIMKeyFrame()
		{ }
	
	public void setColorModel(ColorModel cm) { colorModel_ = cm; }
	public void setData(byte[] data) { data_ = data; }
	public void setCompressed(boolean isCompressed) { isCompressed_ = isCompressed; }

	public ColorModel getColorModel() { return colorModel_; }

	public void decode(Bitmap bitmap, ANIMMovieTrack track)
		{
		if (isCompressed_)
			{
			decodeByteRun1(data_,bitmap.getBitmap());		
			}
		else
			{
			System.arraycopy(data_,0,bitmap.getBitmap(),0,data_.length);
			}
		}

	public static int decodeByteRun1(byte[] in, byte[] out)
		{
		int iOut = 0;
 		int iIn = 0;
		int command = 0;
		int finalIndex = in.length;
		byte copyByte;

		try
			{
			while (iOut < out.length)
				{ 
				command = in[iIn++];
				if (command >= 0)
					{
					for (;command >= 0;command--)
						{ out[iOut++] = in[iIn++]; }
					}
				else
					{
					if (command != -128)
						{
						copyByte = in[iIn++];
						for (;command < 1;command++)
							{ out[iOut++] = copyByte; }
						}
					}
				}
			}
		catch (IndexOutOfBoundsException e)
			{
			System.out.println("ILBMDecoder.decodeByteRun1(): " + e);
			System.out.println("  Plane-Index: " + iOut + " Plane size:" + out.length); 
			System.out.println("  Buffer-Index: " + iIn + " Buffer size:" + in.length); 
			System.out.println("  Command: " + command); 
			}
		return iOut;
		}
	}