mirror of
https://github.com/kasmtech/KasmVNC.git
synced 2024-11-08 09:14:10 +01:00
107 lines
2.8 KiB
C++
107 lines
2.8 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
|
|
* Copyright (C) 2005 Constantin Kaplinsky. All Rights Reserved.
|
|
* Copyright 2014 Pierre Ossman for Cendio AB
|
|
*
|
|
* 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 <rfb/encodings.h>
|
|
#include <rfb/SConnection.h>
|
|
#include <rfb/HextileEncoder.h>
|
|
#include <rfb/PixelBuffer.h>
|
|
#include <rfb/Configuration.h>
|
|
|
|
using namespace rfb;
|
|
|
|
BoolParameter improvedHextile("ImprovedHextile",
|
|
"Use improved compression algorithm for Hextile "
|
|
"encoding which achieves better compression "
|
|
"ratios by the cost of using more CPU time",
|
|
true);
|
|
|
|
#define BPP 8
|
|
#include <rfb/hextileEncode.h>
|
|
#include <rfb/hextileEncodeBetter.h>
|
|
#undef BPP
|
|
#define BPP 16
|
|
#include <rfb/hextileEncode.h>
|
|
#include <rfb/hextileEncodeBetter.h>
|
|
#undef BPP
|
|
#define BPP 32
|
|
#include <rfb/hextileEncode.h>
|
|
#include <rfb/hextileEncodeBetter.h>
|
|
#undef BPP
|
|
|
|
HextileEncoder::HextileEncoder(SConnection* conn) :
|
|
Encoder(conn, encodingHextile, EncoderPlain, -1)
|
|
{
|
|
}
|
|
|
|
HextileEncoder::~HextileEncoder()
|
|
{
|
|
}
|
|
|
|
bool HextileEncoder::isSupported()
|
|
{
|
|
return conn->cp.supportsEncoding(encodingHextile);
|
|
}
|
|
|
|
void HextileEncoder::writeRect(const PixelBuffer* pb, const Palette& palette)
|
|
{
|
|
rdr::OutStream* os = conn->getOutStream();
|
|
switch (pb->getPF().bpp) {
|
|
case 8:
|
|
if (improvedHextile) {
|
|
hextileEncodeBetter8(os, pb);
|
|
} else {
|
|
hextileEncode8(os, pb);
|
|
}
|
|
break;
|
|
case 16:
|
|
if (improvedHextile) {
|
|
hextileEncodeBetter16(os, pb);
|
|
} else {
|
|
hextileEncode16(os, pb);
|
|
}
|
|
break;
|
|
case 32:
|
|
if (improvedHextile) {
|
|
hextileEncodeBetter32(os, pb);
|
|
} else {
|
|
hextileEncode32(os, pb);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void HextileEncoder::writeSolidRect(int width, int height,
|
|
const PixelFormat& pf,
|
|
const rdr::U8* colour)
|
|
{
|
|
rdr::OutStream* os;
|
|
int tiles;
|
|
|
|
os = conn->getOutStream();
|
|
|
|
tiles = ((width + 15)/16) * ((height + 15)/16);
|
|
|
|
os->writeU8(hextileBgSpecified);
|
|
os->writeBytes(colour, pf.bpp/8);
|
|
tiles--;
|
|
|
|
while (tiles--)
|
|
os->writeU8(0);
|
|
}
|