mirror of
https://github.com/TigerVNC/tigervnc.git
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47ed8d321c
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2 3789f03b-4d11-0410-bbf8-ca57d06f2519
92 lines
2.7 KiB
C++
92 lines
2.7 KiB
C++
/* Copyright (C) 2002-2003 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#include <rfb/CMsgReader.h>
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#include <rfb/CMsgHandler.h>
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#include <rfb/ZRLEDecoder.h>
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using namespace rfb;
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#define EXTRA_ARGS CMsgHandler* handler
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#define FILL_RECT(r, p) handler->fillRect(r, p)
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#define IMAGE_RECT(r, p) handler->imageRect(r, p)
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#define BPP 8
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#include <rfb/zrleDecode.h>
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#undef BPP
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#define BPP 16
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#include <rfb/zrleDecode.h>
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#undef BPP
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#define BPP 32
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#include <rfb/zrleDecode.h>
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#define CPIXEL 24A
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#include <rfb/zrleDecode.h>
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#undef CPIXEL
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#define CPIXEL 24B
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#include <rfb/zrleDecode.h>
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#undef CPIXEL
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#undef BPP
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Decoder* ZRLEDecoder::create(CMsgReader* reader)
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{
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return new ZRLEDecoder(reader);
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}
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ZRLEDecoder::ZRLEDecoder(CMsgReader* reader_) : reader(reader_)
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{
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}
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ZRLEDecoder::~ZRLEDecoder()
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{
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}
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void ZRLEDecoder::readRect(const Rect& r, CMsgHandler* handler)
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{
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rdr::InStream* is = reader->getInStream();
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rdr::U8* buf = reader->getImageBuf(64 * 64 * 4);
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switch (reader->bpp()) {
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case 8: zrleDecode8 (r, is, &zis, (rdr::U8*) buf, handler); break;
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case 16: zrleDecode16(r, is, &zis, (rdr::U16*)buf, handler); break;
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case 32:
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{
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const rfb::PixelFormat& pf = handler->cp.pf();
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bool fitsInLS3Bytes = ((pf.redMax << pf.redShift) < (1<<24) &&
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(pf.greenMax << pf.greenShift) < (1<<24) &&
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(pf.blueMax << pf.blueShift) < (1<<24));
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bool fitsInMS3Bytes = (pf.redShift > 7 &&
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pf.greenShift > 7 &&
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pf.blueShift > 7);
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if ((fitsInLS3Bytes && !pf.bigEndian) ||
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(fitsInMS3Bytes && pf.bigEndian))
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{
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zrleDecode24A(r, is, &zis, (rdr::U32*)buf, handler);
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}
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else if ((fitsInLS3Bytes && pf.bigEndian) ||
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(fitsInMS3Bytes && !pf.bigEndian))
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{
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zrleDecode24B(r, is, &zis, (rdr::U32*)buf, handler);
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}
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else
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{
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zrleDecode32(r, is, &zis, (rdr::U32*)buf, handler);
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}
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break;
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}
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}
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}
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