1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/* 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,
WritableRaster buf, 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)));
ColorModel cm = pf.getColorModel();
BufferedImage image = new BufferedImage(cm, buf, true, null);
Graphics2D g2 = image.createGraphics();
g2.drawImage(jpeg, 0, 0, null);
g2.dispose();
image.flush();
jpeg.flush();
} catch (IOException e) {
throw new Exception(e.getMessage());
}
}
}
|
