64 lines
1.8 KiB
Java
64 lines
1.8 KiB
Java
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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* Copyright 2016-2019 Brian P. Hinz
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*/
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package com.tigervnc.rfb;
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import java.awt.image.*;
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public class ManagedPixelBuffer extends FullFramePixelBuffer {
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public ManagedPixelBuffer() {
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datasize = 0;
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checkDataSize();
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}
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public ManagedPixelBuffer(PixelFormat pf, int w, int h)
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{
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super(pf, w, h, null);
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datasize = 0;
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checkDataSize();
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}
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public void setPF(PixelFormat pf) {
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format = pf; checkDataSize();
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}
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public void setSize(int w, int h) {
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width_ = w; height_ = h; checkDataSize();
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}
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final void checkDataSize() {
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int new_datasize = width_ * height_;
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if (datasize < new_datasize) {
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if (data != null) {
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datasize = 0; data = null;
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}
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if (new_datasize > 0) {
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ColorModel cm = format.getColorModel();
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data = cm.createCompatibleWritableRaster(width_, height_);
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image = new BufferedImage(cm, data, cm.isAlphaPremultiplied(), null);
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datasize = new_datasize;
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}
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}
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}
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protected int datasize;
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static LogWriter vlog = new LogWriter("ManagedPixelBuffer");
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}
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