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/* Copyright (C) 2012-2016 Brian P. Hinz
* Copyright (C) 2012 D. R. Commander. All Rights Reserved.
*
* 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.vncviewer;
import java.awt.*;
import java.awt.image.*;
import java.nio.*;
import com.tigervnc.rfb.*;
import com.tigervnc.rfb.Point;
public class JavaPixelBuffer extends PlatformPixelBuffer
{
public JavaPixelBuffer(int w, int h) {
super(getPreferredPF(), w, h,
getPreferredPF().getColorModel().createCompatibleWritableRaster(w,h));
ColorModel cm = format.getColorModel();
image = new BufferedImage(cm, data, cm.isAlphaPremultiplied(), null);
image.setAccelerationPriority(1);
}
public WritableRaster getBufferRW(Rect r)
{
synchronized(image) {
return ((BufferedImage)image)
.getSubimage(r.tl.x, r.tl.y, r.width(), r.height()).getRaster();
}
}
public Raster getBuffer(Rect r)
{
Rectangle rect =
new Rectangle(r.tl.x, r.tl.y, r.width(), r.height());
synchronized(image) {
return ((BufferedImage)image).getData(rect);
}
}
public void fillRect(Rect r, byte[] pix)
{
ColorModel cm = format.getColorModel();
int pixel =
ByteBuffer.wrap(pix).order(format.getByteOrder()).asIntBuffer().get(0);
Color c = new Color(cm.getRGB(pixel));
synchronized(image) {
Graphics2D g2 = (Graphics2D)image.getGraphics();
g2.setColor(c);
g2.fillRect(r.tl.x, r.tl.y, r.width(), r.height());
g2.dispose();
}
commitBufferRW(r);
}
public void copyRect(Rect rect, Point move_by_delta)
{
synchronized(image) {
Graphics2D g2 = (Graphics2D)image.getGraphics();
g2.copyArea(rect.tl.x - move_by_delta.x,
rect.tl.y - move_by_delta.y,
rect.width(), rect.height(),
move_by_delta.x, move_by_delta.y);
g2.dispose();
}
commitBufferRW(rect);
}
private static PixelFormat getPreferredPF()
{
GraphicsEnvironment ge =
GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gd = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gd.getDefaultConfiguration();
ColorModel cm = gc.getColorModel();
int depth = ((cm.getPixelSize() > 24) ? 24 : cm.getPixelSize());
int bpp = (depth > 16 ? 32 : (depth > 8 ? 16 : 8));
ByteOrder byteOrder = ByteOrder.nativeOrder();
boolean bigEndian = (byteOrder == ByteOrder.BIG_ENDIAN ? true : false);
boolean trueColour = true;
int redShift = cm.getComponentSize()[0] + cm.getComponentSize()[1];
int greenShift = cm.getComponentSize()[0];
int blueShift = 0;
int redMask = ((int)Math.pow(2, cm.getComponentSize()[2]) - 1);
int greenMask = ((int)Math.pow(2, cm.getComponentSize()[1]) - 1);
int blueMmask = ((int)Math.pow(2, cm.getComponentSize()[0]) - 1);
return new PixelFormat(bpp, depth, bigEndian, trueColour,
redMask, greenMask, blueMmask,
redShift, greenShift, blueShift);
}
}
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