tigervnc/rfb/Encoder.cxx
Constantin Kaplinsky 47ed8d321c Initial revision
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2 3789f03b-4d11-0410-bbf8-ca57d06f2519
2004-10-08 09:43:57 +00:00

76 lines
2.3 KiB
C++

/* Copyright (C) 2002-2004 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>
using namespace rfb;
Encoder::~Encoder()
{
}
EncoderCreateFnType Encoder::createFns[encodingMax+1] = { 0 };
bool Encoder::supported(unsigned int encoding)
{
return encoding <= encodingMax && createFns[encoding];
}
Encoder* Encoder::createEncoder(unsigned int encoding, SMsgWriter* writer)
{
if (encoding <= encodingMax && createFns[encoding])
return (*createFns[encoding])(writer);
return 0;
}
void Encoder::registerEncoder(unsigned 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(unsigned 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);
}