tigervnc/rfb/ConnParams.cxx
Peter Åstrand 462753d02c Added basic almost-functional Tight support, from tightrealvnc project. Decoder only.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@14 3789f03b-4d11-0410-bbf8-ca57d06f2519
2004-11-16 15:23:25 +00:00

113 lines
3.2 KiB
C++

/* Copyright (C) 2002-2003 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 <rdr/OutStream.h>
#include <rfb/Exception.h>
#include <rfb/encodings.h>
#include <rfb/Encoder.h>
#include <rfb/ConnParams.h>
#include <rfb/util.h>
using namespace rfb;
ConnParams::ConnParams()
: majorVersion(0), minorVersion(0), width(0), height(0), useCopyRect(false),
supportsLocalCursor(false), supportsDesktopResize(false),
supportsLastRect(false), qualityLevel(-1),
name_(0), nEncodings_(0), encodings_(0),
currentEncoding_(encodingRaw), verStrPos(0)
{
setName("");
}
ConnParams::~ConnParams()
{
delete [] name_;
delete [] encodings_;
}
bool ConnParams::readVersion(rdr::InStream* is, bool* done)
{
if (verStrPos >= 12) return false;
while (is->checkNoWait(1) && verStrPos < 12) {
verStr[verStrPos++] = is->readU8();
}
if (verStrPos < 12) {
*done = false;
return true;
}
*done = true;
verStr[12] = 0;
return (sscanf(verStr, "RFB %03d.%03d\n", &majorVersion,&minorVersion) == 2);
}
void ConnParams::writeVersion(rdr::OutStream* os)
{
char str[13];
sprintf(str, "RFB %03d.%03d\n", majorVersion, minorVersion);
os->writeBytes(str, 12);
os->flush();
}
void ConnParams::setPF(const PixelFormat& pf)
{
pf_ = pf;
if (pf.bpp != 8 && pf.bpp != 16 && pf.bpp != 32)
throw Exception("setPF: not 8, 16 or 32 bpp?");
}
void ConnParams::setName(const char* name)
{
delete [] name_;
name_ = strDup(name);
}
void ConnParams::setEncodings(int nEncodings, const rdr::U32* encodings)
{
if (nEncodings > nEncodings_) {
delete [] encodings_;
encodings_ = new rdr::U32[nEncodings];
}
nEncodings_ = nEncodings;
useCopyRect = false;
supportsLocalCursor = false;
supportsLastRect = false;
qualityLevel = -1;
currentEncoding_ = encodingRaw;
for (int i = nEncodings-1; i >= 0; i--) {
encodings_[i] = encodings[i];
if (encodings[i] == encodingCopyRect)
useCopyRect = true;
else if (encodings[i] == pseudoEncodingCursor)
supportsLocalCursor = true;
else if (encodings[i] == pseudoEncodingDesktopSize)
supportsDesktopResize = true;
else if (encodings[i] == pseudoEncodingLastRect)
supportsLastRect = true;
else if (encodings[i] >= pseudoEncodingQualityLevel0 &&
encodings[i] <= pseudoEncodingQualityLevel9)
qualityLevel = encodings[i] - pseudoEncodingQualityLevel0;
else if (encodings[i] <= encodingMax && Encoder::supported(encodings[i]))
currentEncoding_ = encodings[i];
}
}