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  help painting image as it is being scanned  (Read 1162 times)
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Offline johngay

Junior Newbie

Java games rock!

« Posted 2003-07-02 20:23:21 »

I have an application that is receiving image data and I am trying to paint the data as fast as I receive it.
Currently I am doing this by creating a single 125 line renderedImage and using a System.arraycopy() to put new image blocks into the ri.

    System.arraycopy(newData, 0, riData, 0, riData.length);

   g2.drawRenderedImage(ri, AffineTransform.getTranslateInstance(0, ty));

   paintImmediately(x, y, w, h);

If it matters the image blocks are being painted from top to bottom.  Also, my image is being scaled down to fit the image area I have on the screen (not full screen).

My problem is that currently I am able to receive data at a rate faster than 1 line/ms, but it takes another 4 ms/line to paint it.  Does anyone have any suggestions on how to do this faster?  I am using blocks of data because I thought it would take less time to display than doing each line,  but is still slow.  This is running on a Blade 150 running Solaris 8 w java 1.4.1-b21.  Thanks for any hints, suggestions or pointers.
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