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/* Copyright (C) 2016 Brian P. Hinz
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
package com.tigervnc.rfb;
import java.awt.*;
import java.awt.image.*;
import java.io.*;
import java.nio.ByteBuffer;
import javax.imageio.*;
import javax.imageio.stream.*;
public class JpegDecompressor {
public JpegDecompressor() {}
public void decompress(ByteBuffer jpegBuf, int jpegBufLen,
PixelBuffer pb, Rect r, PixelFormat pf)
{
byte[] src = new byte[jpegBufLen];
jpegBuf.get(src);
try {
ImageIO.setUseCache(false);
BufferedImage jpeg =
ImageIO.read(new MemoryCacheImageInputStream(new ByteArrayInputStream(src)));
jpeg.setAccelerationPriority(1);
synchronized(pb.getImage()) {
Graphics2D g2 = (Graphics2D)pb.getImage().getGraphics();
g2.drawImage(jpeg, r.tl.x, r.tl.y, r.width(), r.height(), null);
g2.dispose();
}
jpeg.flush();
} catch (IOException e) {
throw new Exception(e.getMessage());
}
}
}
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