BOOL
vncClient::SendUpdate(rfb::SimpleUpdateTracker &update)
{
// If there is nothing to send then exit
if (update.is_empty()) {
vnclog.Print(LL_INTERR, "no data to send\n");
return FALSE;
}
// Get the update info from the tracker
rfb::UpdateInfo update_info;
update.get_update(update_info);
update.clear();
// Find out how many rectangles in total will be updated
// This includes copyrects and changed rectangles split
// up by codings such as CoRRE.
int updates = 0;
updates += update_info.copied.size();
rfb::RectVector::const_iterator i;
for (i=update_info.changed.begin(); i != update_info.changed.end(); i++) {
updates += m_encodemgr.GetNumCodedRects(*i);
}
// If there are no updates then return
if (updates == 0) {
vnclog.Print(LL_INTERR, "no data to send2\n");
return FALSE;
}
// Otherwise, send <number of rectangles> header
rfbFramebufferUpdateMsg header;
header.nRects = Swap16IfLE(updates);
if (!SendRFBMsg(rfbFramebufferUpdate, (BYTE *) &header, sz_rfbFramebufferUpdateMsg))
return FALSE;
// Send the copyrect rectangles
if (!update_info.copied.empty()) {
rfb::Point to_src_delta = update_info.copy_delta.negate();
for (i=update_info.copied.begin(); i!=update_info.copied.end(); i++) {
rfb::Point src = (*i).tl.translate(to_src_delta);
if (!SendCopyRect(*i, src))
return FALSE;
}
}
// Encode & send the actual rectangles
if (!SendRectangles(update_info.changed))
return FALSE;
return TRUE;
}
bool vncDesktopThread::handle_display_change(HANDLE& threadHandle, rfb::Region2D& rgncache, rfb::SimpleUpdateTracker& clipped_updates, rfb::ClippedUpdateTracker& updates)
{
if ((m_desktop->m_displaychanged || //WM_DISPLAYCHANGE
!vncService::InputDesktopSelected() || //handle logon and screensaver desktops
m_desktop->m_SWtoDesktop || //switch from SW to full desktop or visa versa
m_desktop->m_hookswitch|| //hook change request
m_desktop->asked_display!=m_desktop->m_buffer.GetDisplay() //monitor change request
) )
{
// We need to wait until viewer has send if he support Size changes
if (!m_server->All_clients_initialalized())
{
Sleep(30);
vnclog.Print(LL_INTERR, VNCLOG("Wait for viewer init \n"));
}
//logging
if (m_desktop->m_displaychanged) vnclog.Print(LL_INTERR, VNCLOG("++++Screensize changed \n"));
if (m_desktop->m_SWtoDesktop) vnclog.Print(LL_INTERR, VNCLOG("m_SWtoDesktop \n"));
if (m_desktop->m_hookswitch) vnclog.Print(LL_INTERR, VNCLOG("m_hookswitch \n"));
if (m_desktop->asked_display!=m_desktop->m_buffer.GetDisplay()) vnclog.Print(LL_INTERR, VNCLOG("desktop switch %i %i \n"),m_desktop->asked_display,m_desktop->m_buffer.GetDisplay());
if (!m_server->IsThereFileTransBusy())
if (!vncService::InputDesktopSelected()) vnclog.Print(LL_INTERR, VNCLOG("++++InputDesktopSelected \n"));
BOOL screensize_changed=false;
BOOL monitor_changed=false;
rfbServerInitMsg oldscrinfo;
//*******************************************************
// Lock Buffers from here
//*******************************************************
{
if (XRichCursorEnabled) m_server->UpdateCursorShape();
/// We lock all buffers,,and also back the client thread update mechanism
omni_mutex_lock l(m_desktop->m_update_lock);
#ifdef _DEBUG
char szText[256];
sprintf(szText," ++++++ Mutex lock display changes\n");
OutputDebugString(szText);
#endif
// We remove all queue updates from the tracker
m_server->Clear_Update_Tracker();
// Also clear the current updates
rgncache.clear();
// Also clear the copy_rect updates
clipped_updates.clear();
// TESTTESTTEST
// Are all updates cleared....old updates could generate bounding errors
// any other queues to clear ? Yep cursor positions
m_desktop->m_cursorpos.tl.x=0;
m_desktop->m_cursorpos.tl.y=0;
m_desktop->m_cursorpos.br.x=0;
m_desktop->m_cursorpos.br.y=0;
//keep a copy of the old screen size, so we can check for changes later on
oldscrinfo = m_desktop->m_scrinfo;
if (m_desktop->asked_display!=m_desktop->m_buffer.GetDisplay())
{
m_desktop->Checkmonitors();
m_desktop->asked_display=m_desktop->m_buffer.GetDisplay();
int old_monitor=m_desktop->current_monitor;
m_desktop->current_monitor=1;
if (m_desktop->asked_display==2 && m_desktop->nr_monitors>1) m_desktop->current_monitor=2;
if (m_desktop->asked_display==3 && m_desktop->nr_monitors>1) m_desktop->current_monitor=3;
vnclog.Print(LL_INTERR, VNCLOG("OLd Current mon %i %i \n"),old_monitor,m_desktop->current_monitor);
if ( old_monitor!=m_desktop->current_monitor) monitor_changed=true;
}
//*******************************************************
// Reinitialize buffers,color, etc
// monitor change, for non driver, use another buffer
//*******************************************************
if (!m_server->IsThereFileTransBusy())
if (m_desktop->m_displaychanged || !vncService::InputDesktopSelected() || m_desktop->m_hookswitch || (monitor_changed && !m_desktop->m_videodriver))
{
// Attempt to close the old hooks
// shutdown(true) driver is reinstalled without shutdown,(shutdown need a 640x480x8 switch)
vnclog.Print(LL_INTERR, VNCLOG("m_desktop->Shutdown"));
monitor_changed=false;
if (!m_desktop->Shutdown())
{
vnclog.Print(LL_INTERR, VNCLOG("Shutdown KillAuthClients\n"));
m_server->KillAuthClients();
return false;
}
bool fHookDriverWanted = (FALSE != m_desktop->m_hookdriver);
Sleep(1000);
vnclog.Print(LL_INTERR, VNCLOG("m_desktop->Startup"));
if (m_desktop->Startup() != 0)
{
vnclog.Print(LL_INTERR, VNCLOG("Startup KillAuthClients\n"));
m_server->KillAuthClients();
SetEvent(m_desktop->restart_event);
return false;
}
if (m_desktop->m_videodriver)
{
if (!XRichCursorEnabled) m_desktop->m_videodriver->HardwareCursor();
else m_desktop->m_videodriver->NoHardwareCursor();
}
m_server->SetScreenOffset(m_desktop->m_ScreenOffsetx,m_desktop->m_ScreenOffsety,m_desktop->nr_monitors);
// sf@2003 - After a new Startup(), we check if the required video driver
// is actually available. If not, we force hookdll
// No need for m_hookswitch again because the driver is NOT available anyway.
// All the following cases are now handled:
// 1. Desktop thread starts with "Video Driver" checked and no video driver available...
// -> HookDll forced (handled by the first InitHookSettings() after initial Startup() call
// 2. Desktop Thread starts without "Video Driver" checked but available driver
// then the user checks "Video Driver" -> Video Driver used
// 3. Desktop thread starts with "Video Driver" and available driver used
// Then driver is switched off (-> hookDll)
// Then the driver is switched on again (-> hook driver used again)
// 4. Desktop thread starts without "Video Driver" checked and no driver available
// then the users checks "Video Driver"
if (fHookDriverWanted && m_desktop->m_videodriver == NULL)
{
vnclog.Print(LL_INTERR, VNCLOG("m_videodriver == NULL \n"));
m_desktop->SethookMechanism(true, false); // InitHookSettings() would work as well;
}
stop_hookwatch=true;
vnclog.Print(LL_INTERR, VNCLOG("threadHandle \n"));
if (threadHandle)
{
WaitForSingleObject( threadHandle, INFINITE );
CloseHandle(threadHandle);
stop_hookwatch=false;
threadHandle=NULL;
}
vnclog.Print(LL_INTERR, VNCLOG("threadHandle2 \n"));
}
//*******************************************************
// end reinit
//*******************************************************
if ((m_desktop->m_scrinfo.framebufferWidth != oldscrinfo.framebufferWidth) ||
(m_desktop->m_scrinfo.framebufferHeight != oldscrinfo.framebufferHeight ||
m_desktop->m_SWtoDesktop==TRUE ))
{
screensize_changed=true;
vnclog.Print(LL_INTINFO, VNCLOG("SCR: new screen format %dx%dx%d\n"),
m_desktop->m_scrinfo.framebufferWidth,
m_desktop->m_scrinfo.framebufferHeight,
m_desktop->m_scrinfo.format.bitsPerPixel);
}
m_desktop->m_displaychanged = FALSE;
m_desktop->m_hookswitch = FALSE;
m_desktop->Hookdll_Changed = m_desktop->On_Off_hookdll; // Set the hooks again if necessary !
m_desktop->m_SWtoDesktop=FALSE;
//****************************************************************************
//************* SCREEN SIZE CHANGED
//****************************************************************************
if (screensize_changed)
{
vnclog.Print(LL_INTERR, VNCLOG("Size changed\n"));
POINT CursorPos;
m_desktop->SWinit();
m_desktop->GetQuarterSize();
GetCursorPos(&CursorPos);
CursorPos.x=g_dpi.UnscaleX(CursorPos.x);
CursorPos.y=g_dpi.UnscaleY(CursorPos.y);
CursorPos.x -= m_desktop->m_ScreenOffsetx;
CursorPos.y -= m_desktop->m_ScreenOffsety;
m_desktop->m_cursorpos.tl = CursorPos;
m_desktop->m_cursorpos.br = rfb::Point(GetSystemMetrics(SM_CXCURSOR),
GetSystemMetrics(SM_CYCURSOR)).translate(CursorPos);
m_server->SetSWOffset(m_desktop->m_SWOffsetx,m_desktop->m_SWOffsety);
// Adjust the UpdateTracker clip region
updates.set_clip_region(m_desktop->m_Cliprect);
m_desktop->m_buffer.ClearCache();
}
if (monitor_changed)
{
// we are using the driver, so a monitor change is a view change, like a special kind of single window
// m_desktop->current_monitor is the new monitor we want to see
// monitor size mymonitor[m_desktop->current_monitor-1]
// m_SWOffset is used by the encoders to send the correct coordinates to the viewer
// Cliprect, buffer coordinates
m_desktop->m_SWOffsetx=m_desktop->mymonitor[m_desktop->current_monitor-1].offsetx-m_desktop->mymonitor[2].offsetx;
m_desktop->m_SWOffsety=m_desktop->mymonitor[m_desktop->current_monitor-1].offsety-m_desktop->mymonitor[2].offsety;
m_server->SetSWOffset(m_desktop->m_SWOffsetx,m_desktop->m_SWOffsety);
m_desktop->m_Cliprect.tl.x=m_desktop->mymonitor[m_desktop->current_monitor-1].offsetx-m_desktop->mymonitor[2].offsetx;
m_desktop->m_Cliprect.tl.y=m_desktop->mymonitor[m_desktop->current_monitor-1].offsety-m_desktop->mymonitor[2].offsety;
m_desktop->m_Cliprect.br.x=m_desktop->mymonitor[m_desktop->current_monitor-1].offsetx+
m_desktop->mymonitor[m_desktop->current_monitor-1].Width-m_desktop->mymonitor[2].offsetx;
m_desktop->m_Cliprect.br.y=m_desktop->mymonitor[m_desktop->current_monitor-1].offsety+
m_desktop->mymonitor[m_desktop->current_monitor-1].Height-m_desktop->mymonitor[2].offsety;
vnclog.Print(LL_INTERR, VNCLOG("***********###############************ %i %i %i %i %i %i\n"),m_desktop->m_SWOffsetx,m_desktop->m_SWOffsety
,m_desktop->m_Cliprect.tl.x,m_desktop->m_Cliprect.tl.y,m_desktop->m_Cliprect.br.x,m_desktop->m_Cliprect.br.y);
rgncache.assign_union(rfb::Region2D(m_desktop->m_Cliprect));
updates.set_clip_region(m_desktop->m_Cliprect);
m_desktop->m_buffer.ClearCache();
m_desktop->m_buffer.BlackBack();
}
m_desktop->m_buffer.ClearCache();
m_desktop->m_buffer.BlackBack();
InvalidateRect(NULL,NULL,TRUE);
rgncache.assign_union(rfb::Region2D(m_desktop->m_Cliprect));
if (memcmp(&m_desktop->m_scrinfo.format, &oldscrinfo.format, sizeof(rfbPixelFormat)) != 0)
{
vnclog.Print(LL_INTERR, VNCLOG("Format changed\n"));
m_server->UpdatePalette(false); // changed no lock ok
m_server->UpdateLocalFormat(false); // changed no lock ok
}
if (screensize_changed)
{
screensize_changed=false;
m_server->SetNewSWSize(m_desktop->m_scrinfo.framebufferWidth,m_desktop->m_scrinfo.framebufferHeight,FALSE);//changed no lock ok
m_server->SetScreenOffset(m_desktop->m_ScreenOffsetx,m_desktop->m_ScreenOffsety,m_desktop->nr_monitors);// no lock ok
}
if (monitor_changed)
{
monitor_changed=false;
m_server->SetNewSWSize(m_desktop->mymonitor[m_desktop->current_monitor-1].Width,m_desktop->mymonitor[m_desktop->current_monitor-1].Height,TRUE); //changed no lock ok
}
#ifdef _DEBUG
//char szText[256];
sprintf(szText," ++++++ Mutex unlock display changes\n");
OutputDebugString(szText);
#endif
}// end lock
}
return true;
}
