mirror of
https://github.com/kasmtech/KasmVNC.git
synced 2024-11-22 16:13:13 +01:00
105 lines
2.7 KiB
C++
105 lines
2.7 KiB
C++
/* Copyright (C) 2002-2005 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/MemInStream.h>
|
|
#include <rdr/OutStream.h>
|
|
|
|
#include <rfb/ConnParams.h>
|
|
#include <rfb/PixelBuffer.h>
|
|
#include <rfb/HextileDecoder.h>
|
|
|
|
using namespace rfb;
|
|
|
|
#define BPP 8
|
|
#include <rfb/hextileDecode.h>
|
|
#undef BPP
|
|
#define BPP 16
|
|
#include <rfb/hextileDecode.h>
|
|
#undef BPP
|
|
#define BPP 32
|
|
#include <rfb/hextileDecode.h>
|
|
#undef BPP
|
|
|
|
HextileDecoder::HextileDecoder() : Decoder(DecoderPlain)
|
|
{
|
|
}
|
|
|
|
HextileDecoder::~HextileDecoder()
|
|
{
|
|
}
|
|
|
|
void HextileDecoder::readRect(const Rect& r, rdr::InStream* is,
|
|
const ConnParams& cp, rdr::OutStream* os)
|
|
{
|
|
Rect t;
|
|
size_t bytesPerPixel;
|
|
|
|
bytesPerPixel = cp.pf().bpp/8;
|
|
|
|
for (t.tl.y = r.tl.y; t.tl.y < r.br.y; t.tl.y += 16) {
|
|
|
|
t.br.y = __rfbmin(r.br.y, t.tl.y + 16);
|
|
|
|
for (t.tl.x = r.tl.x; t.tl.x < r.br.x; t.tl.x += 16) {
|
|
rdr::U8 tileType;
|
|
|
|
t.br.x = __rfbmin(r.br.x, t.tl.x + 16);
|
|
|
|
tileType = is->readU8();
|
|
os->writeU8(tileType);
|
|
|
|
if (tileType & hextileRaw) {
|
|
os->copyBytes(is, t.area() * bytesPerPixel);
|
|
continue;
|
|
}
|
|
|
|
if (tileType & hextileBgSpecified)
|
|
os->copyBytes(is, bytesPerPixel);
|
|
|
|
if (tileType & hextileFgSpecified)
|
|
os->copyBytes(is, bytesPerPixel);
|
|
|
|
if (tileType & hextileAnySubrects) {
|
|
rdr::U8 nSubrects;
|
|
|
|
nSubrects = is->readU8();
|
|
os->writeU8(nSubrects);
|
|
|
|
if (tileType & hextileSubrectsColoured)
|
|
os->copyBytes(is, nSubrects * (bytesPerPixel + 2));
|
|
else
|
|
os->copyBytes(is, nSubrects * 2);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void HextileDecoder::decodeRect(const Rect& r, const void* buffer,
|
|
size_t buflen, const ConnParams& cp,
|
|
ModifiablePixelBuffer* pb)
|
|
{
|
|
rdr::MemInStream is(buffer, buflen);
|
|
const PixelFormat& pf = cp.pf();
|
|
switch (pf.bpp) {
|
|
case 8: hextileDecode8 (r, &is, pf, pb); break;
|
|
case 16: hextileDecode16(r, &is, pf, pb); break;
|
|
case 32: hextileDecode32(r, &is, pf, pb); break;
|
|
}
|
|
}
|