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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/Encoder.h>
#include <rfb/RawEncoder.h>
#include <rfb/RREEncoder.h>
#include <rfb/HextileEncoder.h>
#include <rfb/ZRLEEncoder.h>
#include <rfb/TightEncoder.h>
using namespace rfb;
Encoder::~Encoder()
{
}
EncoderCreateFnType Encoder::createFns[encodingMax+1] = { 0 };
bool Encoder::supported(int encoding)
{
return encoding >= 0 && encoding <= encodingMax && createFns[encoding];
}
Encoder* Encoder::createEncoder(int encoding, SMsgWriter* writer)
{
if (supported(encoding))
return (*createFns[encoding])(writer);
return 0;
}
void Encoder::registerEncoder(int encoding,
EncoderCreateFnType createFn)
{
if (encoding > encodingMax)
throw Exception("Encoder::registerEncoder: encoding out of range");
if (createFns[encoding])
fprintf(stderr,"Replacing existing encoder for encoding %s (%d)\n",
encodingName(encoding), encoding);
createFns[encoding] = createFn;
}
void Encoder::unregisterEncoder(int encoding)
{
if (encoding > encodingMax)
throw Exception("Encoder::unregisterEncoder: encoding out of range");
createFns[encoding] = 0;
}
int EncoderInit::count = 0;
EncoderInit::EncoderInit()
{
if (count++ != 0) return;
Encoder::registerEncoder(encodingRaw, RawEncoder::create);
Encoder::registerEncoder(encodingRRE, RREEncoder::create);
Encoder::registerEncoder(encodingHextile, HextileEncoder::create);
Encoder::registerEncoder(encodingZRLE, ZRLEEncoder::create);
Encoder::registerEncoder(encodingTight, TightEncoder::create);
}
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