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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 <stdio.h>
#include <rfb/Exception.h>
#include <rfb/Decoder.h>
#include <rfb/RawDecoder.h>
#include <rfb/RREDecoder.h>
#include <rfb/HextileDecoder.h>
#include <rfb/ZRLEDecoder.h>
#include <rfb/TightDecoder.h>
using namespace rfb;
Decoder::~Decoder()
{
}
DecoderCreateFnType Decoder::createFns[encodingMax+1] = { 0 };
bool Decoder::supported(unsigned int encoding)
{
return encoding <= encodingMax && createFns[encoding];
}
Decoder* Decoder::createDecoder(unsigned int encoding, CMsgReader* reader)
{
if (encoding <= encodingMax && createFns[encoding])
return (*createFns[encoding])(reader);
return 0;
}
void Decoder::registerDecoder(unsigned int encoding,
DecoderCreateFnType createFn)
{
if (encoding > encodingMax)
throw Exception("Decoder::registerDecoder: encoding out of range");
if (createFns[encoding])
fprintf(stderr,"Replacing existing decoder for encoding %s (%d)\n",
encodingName(encoding), encoding);
createFns[encoding] = createFn;
}
int DecoderInit::count = 0;
DecoderInit::DecoderInit()
{
if (count++ != 0) return;
Decoder::registerDecoder(encodingRaw, RawDecoder::create);
Decoder::registerDecoder(encodingRRE, RREDecoder::create);
Decoder::registerDecoder(encodingHextile, HextileDecoder::create);
Decoder::registerDecoder(encodingZRLE, ZRLEDecoder::create);
Decoder::registerDecoder(encodingTight, TightDecoder::create);
}
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