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package webcamstudio.sources.effects;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.image.BufferedImage;
import javax.swing.JPanel;
import webcamstudio.sources.effects.controls.GainControl;
/**
*
* @author pballeux (modified by karl)
*/
public class Gain extends Effect{
private final com.jhlabs.image.GainFilter filter = new com.jhlabs.image.GainFilter();
private final float ratio = 100f;
private float gain = 50f/ratio;
private float bias = 50f/ratio;
@Override
public void applyEffect(BufferedImage img) {
filter.setGain(gain);
filter.setBias(bias);
Graphics2D buffer = img.createGraphics();
buffer.setRenderingHint(RenderingHints.KEY_RENDERING,
RenderingHints.VALUE_RENDER_SPEED);
buffer.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_OFF);
buffer.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
buffer.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
RenderingHints.VALUE_FRACTIONALMETRICS_OFF);
buffer.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING,
RenderingHints.VALUE_COLOR_RENDER_SPEED);
buffer.setRenderingHint(RenderingHints.KEY_DITHERING,
RenderingHints.VALUE_DITHER_DISABLE);
BufferedImage temp = filter.filter(img, null);
buffer.setBackground(new java.awt.Color(0,0,0,0));
buffer.clearRect(0,0,img.getWidth(),img.getHeight());
buffer.drawImage(temp, 0, 0,null);
buffer.dispose();
}
@Override
public JPanel getControl() {
return new GainControl(this);
}
@Override
public boolean needApply(){
return needApply=true;
}
/**
* @return the brightness
*/
public int getGain() {
return (int)(gain*ratio);
}
/**
* @param gain
*/
public void setGain(int gain) {
this.gain = gain/ratio;
}
/**
* @return the contrast
*/
public int getBias() {
return (int)(bias*ratio);
}
/**
* @param bias
*/
public void setBias(int bias) {
this.bias = bias/ratio;
}
@Override
public void resetFX() {
// nothing here.
}
}