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/* Copyright (C) 2002-2005 RealVNC Ltd. 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#include <rdr/InStream.h>
#include <rfb/CMsgReader.h>
#include <rfb/CMsgHandler.h>
#include <rfb/RawDecoder.h>
using namespace rfb;
Decoder* RawDecoder::create(CMsgReader* reader)
{
return new RawDecoder(reader);
}
RawDecoder::RawDecoder(CMsgReader* reader_) : reader(reader_)
{
}
RawDecoder::~RawDecoder()
{
}
void RawDecoder::readRect(const Rect& r, CMsgHandler* handler)
{
int x = r.tl.x;
int y = r.tl.y;
int w = r.width();
int h = r.height();
int nPixels;
rdr::U8* imageBuf = reader->getImageBuf(w, w*h, &nPixels);
int bytesPerRow = w * (reader->bpp() / 8);
while (h > 0) {
int nRows = nPixels / w;
if (nRows > h) nRows = h;
reader->getInStream()->readBytes(imageBuf, nRows * bytesPerRow);
handler->imageRect(Rect(x, y, x+w, y+nRows), imageBuf);
h -= nRows;
y += nRows;
}
}
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