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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright 2016-2019 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.image.*;
public class ManagedPixelBuffer extends FullFramePixelBuffer {
public ManagedPixelBuffer() {
datasize = 0;
checkDataSize();
}
public ManagedPixelBuffer(PixelFormat pf, int w, int h)
{
super(pf, w, h, null);
datasize = 0;
checkDataSize();
}
public void setPF(PixelFormat pf) {
format = pf; checkDataSize();
}
public void setSize(int w, int h) {
width_ = w; height_ = h; checkDataSize();
}
final void checkDataSize() {
int new_datasize = width_ * height_;
if (datasize < new_datasize) {
if (data != null) {
datasize = 0; data = null;
}
if (new_datasize > 0) {
ColorModel cm = format.getColorModel();
data = cm.createCompatibleWritableRaster(width_, height_);
image = new BufferedImage(cm, data, cm.isAlphaPremultiplied(), null);
datasize = new_datasize;
}
}
}
protected int datasize;
static LogWriter vlog = new LogWriter("ManagedPixelBuffer");
}
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