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/* 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)
{
}
HextileEncoder::~HextileEncoder()
{
}
bool HextileEncoder::isSupported()
{
return conn->client.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);
}
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