//===========================================================================//=-------------------------------------------------------------------------=//= Module history:                                                         =//= - September 15 2005 - Oscar Chavarro: Original base version             =//= - November 28 2005 - Oscar Chavarro: Quality check                      =//===========================================================================package vsdk.toolkit.media;public class RGBAImage extends Image{    /// Check the general attribute description in superclass Entity.    public static final long serialVersionUID = 20060502L;    private byte data[];    private int xSize;    private int ySize;    /**    Check the general signature contract in superclass method    Image.init.    */    public RGBAImage()    {        xSize = 0;        ySize = 0;        data = null;    }    /**    This is the class destructor.    */    public void finalize()    {        if ( data != null ) {            xSize = 0;            ySize = 0;            data = null;        }    }    /**    Inicializaci&oacute;n del contenido de una imagen.    Recibe el ancho y el alto que debe tener esta RGBImage (n&oacute;tese    que una imagen puede asi cambiar de tama&ntilde;o en cualquier momento)    y asigna la memoria necesaria para hacerlo.    OJO: NO inicializa la imagen, solo asigna la memoria necesaria.    Este m&eacute;todo retorna true si todo sale bien, o false si no    se pudo asignar la cantidad de memoria necesaria para almacenar la    imagen del tama&ntilde;o seleccionado.    */    public boolean init(int width, int height)    {        try {          data = new byte[width * height * 4];          for ( int i = 0; i < width*height*4; i++ ) {              data[i] = 0;          }        }        catch (Exception e) {          data = null;          return false;        }        xSize = width;                ySize = height;                return true;    }    /**    Este m&eacute;todo cambia la posicion (x, y) de la matriz de imagen y    escribe en ella un pixel con coordenadas (r, g, b).    */    public void putPixel(int x, int y, byte r, byte g, byte b)    {        int index = ((xSize*(ySize-1-y)) + x)*4;        data[index] = r;        data[index+1] = g;        data[index+2] = b;        data[index+3] = (byte)-1;    }        public void putPixel(int x, int y, byte r, byte g, byte b, byte a)    {        int index = ((xSize*(ySize-1-y)) + x)*4;        data[index] = r;        data[index+1] = g;        data[index+2] = b;        data[index+3] = a;    }    public void putPixel(int x, int y, RGBAPixel p)    {        int index = ((xSize*(ySize-1-y)) + x)*4;        data[index] = p.r;        data[index+1] = p.g;        data[index+2] = p.b;        data[index+3] = p.a;    }    /**    Check the general signature contract in superclass method    Image.putPixelRgb.    */    public void putPixelRgb(int x, int y, RGBPixel p)    {        int index = ((xSize*(ySize-1-y)) + x)*4;        data[index] = p.r;        data[index+1] = p.g;        data[index+2] = p.b;        data[index+3] = Byte.MAX_VALUE;    }    /**    Este m&eacute;todo retorna las coordenadas de color (r, g, b, a) para el     pixel de la posicion (x, y) de la imagen.    */    public RGBAPixel getPixel(int x, int y)    {        RGBAPixel p = new RGBAPixel();        int index = ((xSize*(ySize-1-y)) + x)*4;        p.r = data[index];        p.g = data[index+1];        p.b = data[index+2];        p.a = data[index+3];        return p;    }    /**    Check the general signature contract in superclass method    Image.getPixelRgb.    */    public RGBPixel getPixelRgb(int x, int y)    {        RGBPixel p = new RGBPixel();        int index = ((xSize*(ySize-1-y)) + x)*4;        p.r = data[index];        p.g = data[index+1];        p.b = data[index+2];        return p;    }    /**    Check the general signature contract in superclass method    Image.getXSize.    */    public int getXSize()    {        return xSize;    }    /**    Check the general signature contract in superclass method    Image.getYSize.    */    public int getYSize()    {        return ySize;    }        public byte[] getRawImage()    {        return data;    }    public void setRawImage(int xSize, int ySize, byte[] data)    {        this.xSize = xSize;        this.ySize = ySize;        this.data = data;    }        /** Returns a copy of current image in its own memory */    public RGBAImage clone()    {        RGBAImage copy;        int xSize = getXSize();        int ySize = getYSize();        int x, y;        copy = new RGBAImage();        copy.init(xSize, ySize);        for ( x = 0; x < xSize; x++ ) {            for ( y = 0; y < ySize; y++ ) {                copy.putPixel(x, y, getPixel(x, y));            }        }        return copy;    }    /** Returns a copy of current image in its own memory */    public RGBImage exportToRgbImage()    {        RGBImage copy;        int xSize = getXSize();        int ySize = getYSize();        int x, y;        RGBAPixel 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 = source.r;                target.g = source.g;                target.b = source.b;                copy.putPixel(x, y, target);            }        }        return copy;    }}//===========================================================================//= EOF                                                                     =//===========================================================================