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Index › Programming Questions & Help › Programs › PNG output hack
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PNG output hack (Read 3003 times)
watz
PNG output hack
Jul 1st, 2005, 1:37am  
Just hacked Koenie and Martin's old PNG/JPEG output hack (now buried in the ALPHA board) to work with 0091 and be more like saveFrame(). Here it is in case anyone wants it.

Code:
// save IMAGE hacked by Martin and Koenie rehacked by Watz
public void saveFrame(String filename) {
 BufferedImage img=new BufferedImage(width, height,
 BufferedImage.TYPE_INT_RGB);
 loadPixels();
 img.setRGB(0, 0, width, height, g.pixels, 0, width);

 String extn=filename.substring(filename.lastIndexOf('.')+1).toLowerCase();
 if(extn.equals("jpg")||extn.equals("png")) { // add here as needed
   try {
     javax.imageio.ImageIO.write(img, extn, new File(savePath(filename)));
     println("saved "+filename);
   }
   catch(Exception e) {
     System.err.println("error while saving as "+extn);
     e.printStackTrace();
   }
 }
 else {
   super.saveFrame(filename);
 }
}
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marius watz // unlekker // code & form // Generator.x
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radarboy
Re: PNG output hack
Reply #1 - Jul 4th, 2005, 3:54pm  
Great thanks. Exactly what I was looking for/hoping to do.
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I am.
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martinbere
Re: PNG output hack
Reply #2 - Aug 7th, 2005, 1:30am  
Is there any way to set the quality of the JPEGs files using this script?

thanks,
martin.
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toxi
Re: PNG output hack
Reply #3 - Aug 8th, 2005, 1:49pm  
you could merge the above code with the solution over there. that one is using the JPEGEncoder class which lets you customize the export quality...
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postspectacular.com | toxi.co.uk
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martinbere
Re: PNG output hack
Reply #4 - Aug 8th, 2005, 6:18pm  
Thanks toxi!
I´ve merged them and it works fine. I don´t know if I have done it in the best way but it works. Here is the code:

Code:

import com.sun.image.codec.jpeg.*;

public void saveFrame(String filename) { 
 BufferedImage img=new BufferedImage(width, height, 
 BufferedImage.TYPE_INT_RGB); 
 loadPixels(); 
 img.setRGB(0, 0, width, height, g.pixels, 0, width); 
 
 String extn=filename.substring(filename.lastIndexOf('.')+1).toLowerCase(); 
 if (extn.equals("jpg")) {
 
   try{
     ByteArrayOutputStream out = new ByteArrayOutputStream();
     JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
     JPEGEncodeParam p = encoder.getDefaultJPEGEncodeParam(img);
     // set JPEG quality to 50% with baseline optimization
     p.setQuality(0.5,true);
     encoder.setJPEGEncodeParam(p);
     encoder.encode(img);
     
     File file = new File(savePath(filename));
     FileOutputStream fo = new FileOutputStream(file);
     out.writeTo(fo);
     println("saved "+filename);
   }
   catch(FileNotFoundException e){
     System.out.println(e);
   }
   catch(IOException ioe){
     System.out.println(ioe);
   }
 
 } else if (extn.equals("png")) { // add here as needed 
 
   try { 
     javax.imageio.ImageIO.write(img, extn, new File(savePath(filename))); 
     println("saved "+filename); 
   } 
   catch(Exception e) { 
     System.err.println("error while saving as "+extn); 
     e.printStackTrace(); 
   } 
   
 } else { 
   super.saveFrame(filename); 
 } 
}
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