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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright (C) 2011 D. R. Commander. 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 <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), supportsLocalXCursor(false),
supportsDesktopResize(false), supportsExtendedDesktopSize(false),
supportsDesktopRename(false), supportsLastRect(false),
supportsSetDesktopSize(false), supportsFence(false),
supportsContinuousUpdates(false),
customCompressLevel(false), compressLevel(6),
noJpeg(false), qualityLevel(-1), fineQualityLevel(-1),
subsampling(SUBSAMP_UNDEFINED),
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::S32* encodings)
{
if (nEncodings > nEncodings_) {
delete [] encodings_;
encodings_ = new rdr::S32[nEncodings];
}
nEncodings_ = nEncodings;
useCopyRect = false;
supportsLocalCursor = false;
supportsDesktopResize = false;
supportsExtendedDesktopSize = false;
supportsLocalXCursor = false;
supportsLastRect = false;
customCompressLevel = false;
compressLevel = -1;
noJpeg = true;
qualityLevel = -1;
fineQualityLevel = -1;
subsampling = SUBSAMP_UNDEFINED;
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] == pseudoEncodingXCursor)
supportsLocalXCursor = true;
else if (encodings[i] == pseudoEncodingDesktopSize)
supportsDesktopResize = true;
else if (encodings[i] == pseudoEncodingExtendedDesktopSize)
supportsExtendedDesktopSize = true;
else if (encodings[i] == pseudoEncodingDesktopName)
supportsDesktopRename = true;
else if (encodings[i] == pseudoEncodingLastRect)
supportsLastRect = true;
else if (encodings[i] == pseudoEncodingFence)
supportsFence = true;
else if (encodings[i] == pseudoEncodingContinuousUpdates)
supportsContinuousUpdates = true;
else if (encodings[i] >= pseudoEncodingCompressLevel0 &&
encodings[i] <= pseudoEncodingCompressLevel9) {
customCompressLevel = true;
compressLevel = encodings[i] - pseudoEncodingCompressLevel0;
} else if (encodings[i] >= pseudoEncodingQualityLevel0 &&
encodings[i] <= pseudoEncodingQualityLevel9) {
noJpeg = false;
qualityLevel = encodings[i] - pseudoEncodingQualityLevel0;
} else if (Encoder::supported(encodings[i]))
currentEncoding_ = encodings[i];
}
// If the TurboVNC fine quality/subsampling encodings exist, let them
// override the coarse TightVNC quality level
for (int i = nEncodings-1; i >= 0; i--) {
if (encodings[i] >= pseudoEncodingFineQualityLevel0 + 1 &&
encodings[i] <= pseudoEncodingFineQualityLevel100) {
noJpeg = false;
fineQualityLevel = encodings[i] - pseudoEncodingFineQualityLevel0;
} else if (encodings[i] >= pseudoEncodingSubsamp1X &&
encodings[i] <= pseudoEncodingSubsampGray) {
noJpeg = false;
subsampling = (JPEG_SUBSAMP)(encodings[i] - pseudoEncodingSubsamp1X);
}
}
}
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