//===========================================================================//=-------------------------------------------------------------------------=//= Module history:                                                         =//= - August 21 2006 - Oscar Chavarro: Original base version                =//===========================================================================package vsdk.toolkit.media;import vsdk.toolkit.common.VSDK;import vsdk.toolkit.common.ColorRgb;public class IndexedColorImage extends Image{    /// Check the general attribute description in superclass Entity.    public static final long serialVersionUID = 20060821L;    private byte data[];    private int xSize;    private int ySize;    private RGBColorPalette colorTable;    private ColorRgb _static_color;    /**    Check the general signature contract in superclass method    Image.init.    If the recieved colorTable is null, this method creates a 256 level    grayscale palette.    */    public IndexedColorImage(RGBColorPalette colorTable)    {        xSize = 0;        ySize = 0;        data = null;        if ( colorTable != null ) {            this.colorTable = colorTable;        }        else {            this.colorTable = new RGBColorPalette();        }    }    /**    Check the general signature contract in superclass method    Image.init.    This method creates a 256 level grayscale palette.    */    public IndexedColorImage()    {        xSize = 0;        ySize = 0;        data = null;        this.colorTable = new RGBColorPalette();    }    /**    This is the class destructor.    */    public void finalize()    {        if ( data != null ) {            xSize = 0;            ySize = 0;            data = null;        }    }    public boolean init(int width, int height)    {        try {          data = new byte[width * height];          for ( int i = 0; i < width*height; i++ ) {              data[i] = 0;          }        }        catch ( Exception e ) {          data = null;          return false;        }        xSize = width;        ySize = height;        return true;    }    public int getXSize()    {        return xSize;    }    public int getYSize()    {        return ySize;    }    public byte[] getRawImage()    {        return data;    }    public void putPixel(int x, int y, byte val)    {        int index = xSize*y + x;        data[index] = val;    }    public void putPixel(int x, int y, int val)    {        int index = xSize*y + x;        data[index] = VSDK.unsigned8BitInteger2signedByte(val);    }    public int getPixel(int x, int y)    {        int index = xSize*y + x;        return VSDK.signedByte2unsignedInteger(data[index]);    }    public RGBPixel getPixelRgb(int x, int y)    {        int index = xSize*y + x;        double val;        val = (double)(VSDK.signedByte2unsignedInteger(data[index])) / 255.0;        _static_color = colorTable.evalLinear(val);        RGBPixel p = new RGBPixel();        p.r = VSDK.unsigned8BitInteger2signedByte((int)(_static_color.r*255.0));        p.g = VSDK.unsigned8BitInteger2signedByte((int)(_static_color.g*255.0));        p.b = VSDK.unsigned8BitInteger2signedByte((int)(_static_color.b*255.0));        return p;    }    public RGBColorPalette getColorTable()    {        return colorTable;    }    public void putPixelRgb(int x, int y, RGBPixel p)    {        ColorRgb c = new ColorRgb();        c.r = (double)(VSDK.signedByte2unsignedInteger(p.r)) / 255.0;        c.g = (double)(VSDK.signedByte2unsignedInteger(p.g)) / 255.0;        c.b = (double)(VSDK.signedByte2unsignedInteger(p.b)) / 255.0;        int index = colorTable.selectNearestIndexToRgb(c);        putPixel(x, y, index);    }    public RGBImage exportToRgbImage()    {        RGBImage copy;        int xSize = getXSize();        int ySize = getYSize();        int x, y;        int source;        RGBPixel target = new RGBPixel();        copy = new RGBImage();        copy.init(xSize, ySize);        for ( x = 0; x < xSize; x++ ) {            for ( y = 0; y < ySize; y++ ) {                source = getPixel(x, y);                target.r = target.g = target.b = VSDK.unsigned8BitInteger2signedByte(source);                copy.putPixel(x, y, target);            }        }        return copy;    }    public RGBAImage exportToRgbaImage()    {        RGBAImage copy;        int xSize = getXSize();        int ySize = getYSize();        int x, y;        int source;        RGBAPixel target = new RGBAPixel();        copy = new RGBAImage();        copy.init(xSize, ySize);        target.a = VSDK.unsigned8BitInteger2signedByte(128);        for ( x = 0; x < xSize; x++ ) {            for ( y = 0; y < ySize; y++ ) {                source = getPixel(x, y);                target.r = target.g = target.b = VSDK.unsigned8BitInteger2signedByte(source);                copy.putPixel(x, y, target);            }        }        return copy;    }}//===========================================================================//= EOF                                                                     =//===========================================================================