mirror of
https://github.com/kasmtech/KasmVNC.git
synced 2024-12-25 16:18:53 +01:00
66 lines
2.0 KiB
C++
66 lines
2.0 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.
|
|
*/
|
|
|
|
#ifndef __RFB_COMPARINGUPDATETRACKER_H__
|
|
#define __RFB_COMPARINGUPDATETRACKER_H__
|
|
|
|
#include <rfb/UpdateTracker.h>
|
|
|
|
class scrollHasher_t;
|
|
|
|
namespace rfb {
|
|
|
|
class ComparingUpdateTracker : public SimpleUpdateTracker {
|
|
public:
|
|
ComparingUpdateTracker(PixelBuffer* buffer);
|
|
~ComparingUpdateTracker();
|
|
|
|
// compare() does the comparison and reduces its changed and copied regions
|
|
// as appropriate. Returns true if the regions were altered.
|
|
|
|
virtual bool compare(bool skipScrollDetection, const Region &skipCursorArea);
|
|
|
|
// enable()/disable() turns the comparing functionality on/off. With it
|
|
// disabled, the object will behave like a dumb update tracker (i.e.
|
|
// compare() will be a no-op). It is harmless to repeatedly call these
|
|
// methods.
|
|
|
|
virtual void enable();
|
|
virtual void disable();
|
|
|
|
void logStats();
|
|
|
|
virtual void getUpdateInfo(UpdateInfo* info, const Region& cliprgn);
|
|
virtual void clear();
|
|
|
|
private:
|
|
void compareRect(const Rect& r, Region* newchanged, const Region &skipCursorArea);
|
|
PixelBuffer* fb;
|
|
ManagedPixelBuffer oldFb;
|
|
bool firstCompare;
|
|
bool enabled;
|
|
bool detectScroll;
|
|
|
|
rdr::U32 totalPixels, missedPixels;
|
|
scrollHasher_t *scrollHasher;
|
|
std::vector<CopyPassRect> copyPassRects;
|
|
};
|
|
|
|
}
|
|
#endif
|