mirror of
https://github.com/kasmtech/KasmVNC.git
synced 2024-11-22 16:13:13 +01:00
83 lines
2.6 KiB
C++
83 lines
2.6 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.
|
|
*/
|
|
|
|
// -=- SDisplayCorePolling.cxx
|
|
|
|
#include <rfb_win32/SDisplayCorePolling.h>
|
|
#include <rfb/LogWriter.h>
|
|
#include <rfb/util.h>
|
|
|
|
using namespace rfb;
|
|
using namespace rfb::win32;
|
|
|
|
static LogWriter vlog("SDisplayCorePolling");
|
|
|
|
const int POLLING_SEGMENTS = 16;
|
|
|
|
const unsigned int SDisplayCorePolling::pollTimerId = 1;
|
|
|
|
SDisplayCorePolling::SDisplayCorePolling(SDisplay* d, UpdateTracker* ut, int pollInterval_)
|
|
: MsgWindow(_T("rfb::win32::SDisplayCorePolling")),
|
|
pollTimer(getHandle(), pollTimerId), pollNextStrip(false), display(d), updateTracker(ut) {
|
|
pollInterval = __rfbmax(10, (pollInterval_ / POLLING_SEGMENTS));
|
|
copyrect.setUpdateTracker(ut);
|
|
}
|
|
|
|
SDisplayCorePolling::~SDisplayCorePolling() {
|
|
}
|
|
|
|
LRESULT SDisplayCorePolling::processMessage(UINT msg, WPARAM wParam, LPARAM lParam) {
|
|
if (msg == WM_TIMER && wParam == pollTimerId) {
|
|
pollNextStrip = true;
|
|
SetEvent(display->getUpdateEvent());
|
|
return 0;
|
|
}
|
|
return MsgWindow::processMessage(msg, wParam, lParam);
|
|
}
|
|
|
|
void SDisplayCorePolling::setScreenRect(const Rect& screenRect_) {
|
|
vlog.info("setScreenRect");
|
|
screenRect = screenRect_;
|
|
pollIncrementY = (screenRect.height()+POLLING_SEGMENTS-1)/POLLING_SEGMENTS;
|
|
pollNextY = screenRect.tl.y;
|
|
pollTimer.start(pollInterval);
|
|
}
|
|
|
|
void SDisplayCorePolling::flushUpdates() {
|
|
vlog.write(120, "flushUpdates");
|
|
|
|
// Check for window movement
|
|
while (copyrect.processEvent()) {}
|
|
|
|
if (pollNextStrip) {
|
|
// Poll the next strip of the screen (in Screen coordinates)
|
|
pollNextStrip = false;
|
|
Rect pollrect = screenRect;
|
|
if (pollNextY >= pollrect.br.y) {
|
|
// Yes. Reset the counter and return
|
|
pollNextY = pollrect.tl.y;
|
|
} else {
|
|
// No. Poll the next section
|
|
pollrect.tl.y = pollNextY;
|
|
pollNextY += pollIncrementY;
|
|
pollrect.br.y = __rfbmin(pollNextY, pollrect.br.y);
|
|
updateTracker->add_changed(pollrect);
|
|
}
|
|
}
|
|
}
|