2007-05-02 21:55:59 +02:00
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package org.jivesoftware.smackx.jingle.mediaimpl.sshare.api;
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import java.awt.*;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.net.DatagramPacket;
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import java.net.DatagramSocket;
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import java.net.InetAddress;
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import java.net.SocketException;
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/**
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* UDP Image Receiver.
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* It uses PNG Tiles into UDP packets.
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*
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* @author Thiago Rocha Camargo
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*/
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public class ImageReceiver extends Canvas {
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2012-10-26 12:47:55 +02:00
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private static final long serialVersionUID = -7000112305305269025L;
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private boolean on = true;
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2007-05-02 21:55:59 +02:00
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private DatagramSocket socket;
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private BufferedImage tiles[][];
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private static final int tileWidth = ImageTransmitter.tileWidth;
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private InetAddress localHost;
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private InetAddress remoteHost;
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private int localPort;
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private int remotePort;
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private ImageDecoder decoder;
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public ImageReceiver(final InetAddress remoteHost, final int remotePort, final int localPort, int width, int height) {
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tiles = new BufferedImage[width][height];
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try {
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socket = new DatagramSocket(localPort);
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localHost = socket.getLocalAddress();
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this.remoteHost = remoteHost;
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this.remotePort = remotePort;
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this.localPort = localPort;
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this.decoder = new DefaultDecoder();
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new Thread(new Runnable() {
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public void run() {
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byte buf[] = new byte[1024];
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DatagramPacket p = new DatagramPacket(buf, 1024);
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try {
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while (on) {
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socket.receive(p);
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int length = p.getLength();
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BufferedImage bufferedImage = decoder.decode(new ByteArrayInputStream(p.getData(), 0, length - 2));
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if (bufferedImage != null) {
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int x = p.getData()[length - 2];
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int y = p.getData()[length - 1];
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drawTile(x, y, bufferedImage);
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}
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}
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}
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catch (IOException e) {
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e.printStackTrace();
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}
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}
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}).start();
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new Thread(new Runnable() {
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public void run() {
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byte buf[] = new byte[1024];
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DatagramPacket p = new DatagramPacket(buf, 1024);
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try {
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while (on) {
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p.setAddress(remoteHost);
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p.setPort(remotePort);
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socket.send(p);
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try {
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Thread.sleep(1000);
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}
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catch (InterruptedException e) {
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e.printStackTrace();
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}
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}
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}
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catch (IOException e) {
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e.printStackTrace();
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}
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}
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}).start();
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}
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catch (SocketException e) {
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e.printStackTrace();
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}
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this.setSize(width, height);
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}
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public InetAddress getLocalHost() {
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return localHost;
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}
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public InetAddress getRemoteHost() {
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return remoteHost;
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}
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public int getLocalPort() {
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return localPort;
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}
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public int getRemotePort() {
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return remotePort;
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}
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public DatagramSocket getDatagramSocket() {
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return socket;
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}
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public void drawTile(int x, int y, BufferedImage bufferedImage) {
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tiles[x][y] = bufferedImage;
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//repaint(x * tileWidth, y * tileWidth, tileWidth, tileWidth);
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this.getGraphics().drawImage(bufferedImage, tileWidth * x, tileWidth * y, this);
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}
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public void paint(Graphics g) {
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for (int i = 0; i < tiles.length; i++) {
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for (int j = 0; j < tiles[0].length; j++) {
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g.drawImage(tiles[i][j], tileWidth * i, tileWidth * j, this);
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}
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}
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}
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public ImageDecoder getDecoder() {
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return decoder;
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}
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public void setDecoder(ImageDecoder decoder) {
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this.decoder = decoder;
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}
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2007-05-08 22:50:18 +02:00
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public void stop(){
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this.on=false;
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socket.close();
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}
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2007-05-02 21:55:59 +02:00
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}
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