void
vncDesktopThread::PollWindow(rfb::Region2D &rgn, HWND hwnd)
{
// Are we set to low-load polling?
if (m_server->PollOnEventOnly())
{
// Yes, so only poll if the remote user has done something
if (!m_server->RemoteEventReceived()) {
return;
}
}
// Does the client want us to poll only console windows?
if (m_desktop->m_server->PollConsoleOnly())
{
char classname[20];
// Yes, so check that this is a console window...
if (GetClassName(hwnd, classname, sizeof(classname))) {
if ((strcmp(classname, "tty") != 0) &&
(strcmp(classname, "ConsoleWindowClass") != 0)) {
return;
}
}
}
RECT rect;
// Get the rectangle
if (GetWindowRect(hwnd, &rect)) {
//Buffer coordinates
rect.left-=m_desktop->m_ScreenOffsetx;
rect.right-=m_desktop->m_ScreenOffsetx;
rect.top-=m_desktop->m_ScreenOffsety;
rect.bottom-=m_desktop->m_ScreenOffsety;
rfb::Rect wrect = rfb::Rect(rect).intersect(m_desktop->m_Cliprect);
if (!wrect.is_empty()) {
rgn.assign_union(wrect);
}
}
}
bool
vncDesktopThread::Handle_Ringbuffer(mystruct *ringbuffer,rfb::Region2D &rgncache)
{
bool returnvalue=false;
//vnclog.Print(LL_INTERR, VNCLOG("counter,g_Oldcounter %i %i \n"),ringbuffer->counter,g_Oldcounter);
if (ringbuffer->counter==g_Oldcounter) return 0;
int counter=ringbuffer->counter;
if (counter<1 || counter>1999) return 0;
if (g_Oldcounter<counter)
{
for (int i =g_Oldcounter+1; i<=counter;i++)
{
if (ringbuffer->type[i]==0)
{
rfb::Rect rect;
rect.tl = rfb::Point(ringbuffer->rect1[i].left, ringbuffer->rect1[i].top);
rect.br = rfb::Point(ringbuffer->rect1[i].right, ringbuffer->rect1[i].bottom);
//Buffer coordinates
rect.tl.x-=m_desktop->m_ScreenOffsetx;
rect.br.x-=m_desktop->m_ScreenOffsetx;
rect.tl.y-=m_desktop->m_ScreenOffsety;
rect.br.y-=m_desktop->m_ScreenOffsety;
vnclog.Print(LL_INTERR, VNCLOG("REct %i %i %i %i \n"),rect.tl.x,rect.br.x,rect.tl.y,rect.br.y);
/*#ifdef _DEBUG
char szText[256];
DWORD error=GetLastError();
sprintf(szText,"REct1 %i %i %i %i \n",rect.tl.x,rect.br.x,rect.tl.y,rect.br.y);
SetLastError(0);
OutputDebugString(szText);
#endif*/
rect = rect.intersect(m_desktop->m_Cliprect);
if (!rect.is_empty())
{
/*#ifdef _DEBUG
char szText[256];
DWORD error=GetLastError();
sprintf(szText,"REctXXXXXXXXXXX %i %i %i %i \n",rect.tl.x,rect.br.x,rect.tl.y,rect.br.y);
SetLastError(0);
OutputDebugString(szText);
#endif*/
returnvalue=true;
rgncache.assign_union(rect);
}
}
if (ringbuffer->type[i]==2 || ringbuffer->type[i]==4)
{
/*if (MyGetCursorInfo)
{
MyCURSORINFO cinfo;
cinfo.cbSize=sizeof(MyCURSORINFO);
MyGetCursorInfo(&cinfo);
m_desktop->SetCursor(cinfo.hCursor);
//vnclog.Print(LL_INTERR, VNCLOG("Cursor %i \n"),cinfo.hCursor);
}*/
}
}
}
else
{
int i = 0;
for (i =g_Oldcounter+1;i<2000;i++)
{
if (ringbuffer->type[i]==0 )
{
rfb::Rect rect;
rect.tl = rfb::Point(ringbuffer->rect1[i].left, ringbuffer->rect1[i].top);
rect.br = rfb::Point(ringbuffer->rect1[i].right, ringbuffer->rect1[i].bottom);
//Buffer coordinates
rect.tl.x-=m_desktop->m_ScreenOffsetx;
rect.br.x-=m_desktop->m_ScreenOffsetx;
rect.tl.y-=m_desktop->m_ScreenOffsety;
rect.br.y-=m_desktop->m_ScreenOffsety;
//vnclog.Print(LL_INTERR, VNCLOG("REct %i %i %i %i \n"),rect.tl.x,rect.br.x,rect.tl.y,rect.br.y);
/*#ifdef _DEBUG
char szText[256];
DWORD error=GetLastError();
sprintf(szText,"REct2 %i %i %i %i \n",rect.tl.x,rect.br.x,rect.tl.y,rect.br.y);
SetLastError(0);
OutputDebugString(szText);
#endif */
rect = rect.intersect(m_desktop->m_Cliprect);
if (!rect.is_empty())
{
returnvalue=true;
rgncache.assign_union(rect);
}
}
if (ringbuffer->type[i]==2 || ringbuffer->type[i]==4)
{
/*if (MyGetCursorInfo)
{
MyCURSORINFO cinfo;
cinfo.cbSize=sizeof(MyCURSORINFO);
MyGetCursorInfo(&cinfo);
m_desktop->SetCursor(cinfo.hCursor);
//vnclog.Print(LL_INTERR, VNCLOG("Cursor %i \n"),cinfo.hCursor);
}*/
}
}
for (i=1;i<=counter;i++)
{
if (ringbuffer->type[i]==0 )
{
rfb::Rect rect;
rect.tl = rfb::Point(ringbuffer->rect1[i].left, ringbuffer->rect1[i].top);
rect.br = rfb::Point(ringbuffer->rect1[i].right, ringbuffer->rect1[i].bottom);
//Buffer coordinates
rect.tl.x-=m_desktop->m_ScreenOffsetx;
rect.br.x-=m_desktop->m_ScreenOffsetx;
rect.tl.y-=m_desktop->m_ScreenOffsety;
rect.br.y-=m_desktop->m_ScreenOffsety;
//vnclog.Print(LL_INTERR, VNCLOG("REct %i %i %i %i \n"),rect.tl.x,rect.br.x,rect.tl.y,rect.br.y);
rect = rect.intersect(m_desktop->m_Cliprect);
if (!rect.is_empty())
{
returnvalue=true;
rgncache.assign_union(rect);
}
}
if (ringbuffer->type[i]==2 || ringbuffer->type[i]==4)
{
/*if (MyGetCursorInfo)
{
MyCURSORINFO cinfo;
cinfo.cbSize=sizeof(MyCURSORINFO);
MyGetCursorInfo(&cinfo);
m_desktop->SetCursor(cinfo.hCursor);
//vnclog.Print(LL_INTERR, VNCLOG("Cursor %i \n"),cinfo.hCursor);
}*/
}
}
}
g_Oldcounter=counter;
return returnvalue;
}
void vncDesktopThread::do_polling(HANDLE& threadHandle, rfb::Region2D& rgncache, int& fullpollcounter, bool cursormoved)
{
// POLL PROBLEM AREAS
// We add specific areas of the screen to the region cache,
// causing them to be fetched for processing.
// if can_be_hooked==false, hooking is temp disabled, use polling
if (m_desktop->SetHook && g_obIPC.listall()!=NULL && m_desktop->can_be_hooked)
{
DWORD dwTId(0);
if (threadHandle==NULL) threadHandle = CreateThread(NULL, 0, hookwatch, this, 0, &dwTId);
if (Handle_Ringbuffer(g_obIPC.listall(),rgncache)) return;
}
DWORD lTime = timeGetTime();
m_desktop->m_buffer.SetAccuracy(m_desktop->m_server->TurboMode() ? 8 : 4);
if (cursormoved)
m_lLastMouseMoveTime = lTime;
if ((m_desktop->m_server->PollFullScreen() && !cursormoved) || (!m_desktop->can_be_hooked && !cursormoved))
{
int timeSinceLastMouseMove = lTime - m_lLastMouseMoveTime;
if (timeSinceLastMouseMove > 15) // 150 ms pause after a Mouse move
{
++fullpollcounter;
// THIS FUNCTION IS A PIG. It uses too much CPU on older machines (PIII, P4)
if (m_desktop->FastDetectChanges(rgncache, m_desktop->GetSize(), 0, true)) capture=false;
// force full screen scan every three seconds after the mouse stops moving
if (fullpollcounter > 20)
{
rgncache.assign_union(m_desktop->m_Cliprect);
fullpollcounter = 0;
}
}
}
HWND hWndToPoll = 0;
if (m_desktop->m_server->PollForeground() || !m_desktop->can_be_hooked)
{
// Get the window rectangle for the currently selected window
hWndToPoll = GetForegroundWindow();
if (hWndToPoll != NULL)
PollWindow(rgncache, hWndToPoll);
}
if (m_desktop->m_server->PollUnderCursor() || !m_desktop->can_be_hooked)
{
// Find the mouse position
POINT mousepos;
if (GetCursorPos(&mousepos))
{
mousepos.x=g_dpi.UnscaleX(mousepos.x);
mousepos.y=g_dpi.UnscaleY(mousepos.y);
// Find the window under the mouse
HWND hwnd = WindowFromPoint(mousepos);
// exclude the foreground window (done above) and desktop
if (hwnd != NULL && hwnd != hWndToPoll && hwnd != GetDesktopWindow())
PollWindow(rgncache, hwnd);
}
}
}
////////////////////////////////////////////////////////////////////////////////////
// Modif rdv@2002 - v1.1.x - videodriver
void
vncDesktopThread::copy_bitmaps_to_buffer(ULONG i,rfb::Region2D &rgncache,rfb::UpdateTracker &tracker)
{
rfb::Rect rect;
int x = m_desktop->pchanges_buf->pointrect[i].rect.left;
int w = m_desktop->pchanges_buf->pointrect[i].rect.right-m_desktop->pchanges_buf->pointrect[i].rect.left;
int y = m_desktop->pchanges_buf->pointrect[i].rect.top;
int h = m_desktop->pchanges_buf->pointrect[i].rect.bottom-m_desktop->pchanges_buf->pointrect[i].rect.top;
//vnclog.Print(LL_INTINFO, VNCLOG("Driver ************* %i %i %i %i \n"),x,y,w,h);
if (!ClipRect(&x, &y, &w, &h, m_desktop->m_bmrect.tl.x, m_desktop->m_bmrect.tl.y,
m_desktop->m_bmrect.br.x-m_desktop->m_bmrect.tl.x, m_desktop->m_bmrect.br.y-m_desktop->m_bmrect.tl.y)) return;
//vnclog.Print(LL_INTINFO, VNCLOG("Driver ************* %i %i %i %i \n"),x,y,w,h);
rect.tl.x = x;
rect.br.x = x+w;
rect.tl.y = y;
rect.br.y = y+h;
switch(m_desktop->pchanges_buf->pointrect[i].type)
{
case SCREEN_SCREEN:
{
int dx=m_desktop->pchanges_buf->pointrect[i].point.x;
int dy=m_desktop->pchanges_buf->pointrect[i].point.y;
if (!m_screen_moved && (dx==0 || dy==0) )
{
//// Fix in case !Cliprect
int xx=x;
int yy=y;
int hh=h;
int ww=w;
if (ClipRect(&xx,&yy,&ww,&hh,m_desktop->m_bmrect.tl.x, m_desktop->m_bmrect.tl.y,
m_desktop->m_bmrect.br.x-m_desktop->m_bmrect.tl.x, m_desktop->m_bmrect.br.y-m_desktop->m_bmrect.tl.y))
{
rect.tl.x=xx;
rect.tl.y=yy;
rect.br.x=xx+ww;
rect.br.y=yy+hh;
rgncache.assign_union(rect);
}
//////////////////////
// Fix Eckerd
x=x+dx;;
y=y+dy;;
if (!ClipRect(&x,&y,&w,&h,m_desktop->m_bmrect.tl.x, m_desktop->m_bmrect.tl.y,
m_desktop->m_bmrect.br.x-m_desktop->m_bmrect.tl.x, m_desktop->m_bmrect.br.y-m_desktop->m_bmrect.tl.y)) return;
//////////////////////
// Fix Eckerd
rect.tl.x=x-dx;
rect.tl.y=y-dy;
rect.br.x=x+w-dx;
rect.br.y=y+h-dy;
rfb::Point delta = rfb::Point(-dx,-dy);
rgncache.assign_union(rect);
tracker.add_copied(rect, delta);
// vnclog.Print(LL_INTINFO, VNCLOG("Copyrect \n"));
}
else
{
rgncache.assign_union(rect);
}
break;
}
case SOLIDFILL:
case TEXTOUT:
case BLEND:
case TRANS:
case PLG:
case BLIT:;
rgncache.assign_union(rect);
break;
default:
break;
}
}
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;
}
// Modif rdv@2002 - v1.1.x - videodriver
BOOL
vncDesktopThread::handle_driver_changes(rfb::Region2D &rgncache,rfb::UpdateTracker &tracker)
{
omni_mutex_lock l(m_desktop->m_videodriver_lock);
int oldaantal=m_desktop->m_videodriver->oldaantal;
int counter=m_desktop->pchanges_buf->counter;
// int nr_updates=m_desktop->pchanges_buf->pointrect[0].type;
// vnclog.Print(LL_INTERR, VNCLOG("updates, rects %i\n"),oldaantal-counter);
if (oldaantal==counter) return FALSE;
if (counter<1 || counter >1999) return FALSE;
// m_desktop->pchanges_buf->pointrect[0].type=0;
if (!m_server->SingleWindow()) m_screen_moved=m_desktop->CalcCopyRects(tracker);
else m_screen_moved=true;
/// HEITE01E
// buffer was overloaded, so we use the bounding rect
/* if (nr_updates>2000)
{
rfb::Rect rect;
int x = m_desktop->pchanges_buf->pointrect[0].rect.left;
int w = m_desktop->pchanges_buf->pointrect[0].rect.right-m_desktop->pchanges_buf->pointrect[0].rect.left;
int y = m_desktop->pchanges_buf->pointrect[0].rect.top;
int h = m_desktop->pchanges_buf->pointrect[0].rect.bottom-m_desktop->pchanges_buf->pointrect[0].rect.top;
if (ClipRect(&x, &y, &w, &h, m_desktop->m_bmrect.tl.x, m_desktop->m_bmrect.tl.y,
m_desktop->m_bmrect.br.x-m_desktop->m_bmrect.tl.x, m_desktop->m_bmrect.br.y-m_desktop->m_bmrect.tl.y))
{
rect.tl.x = x;
rect.br.x = x+w;
rect.tl.y = y;
rect.br.y = y+h;
rgncache=rgncache.union_(rect);
m_desktop->m_videodriver->oldaantal=counter;
}
return TRUE;
}*/
if (m_server->SingleWindow()) m_screen_moved=true;
if (oldaantal<counter)
{
for (int i =oldaantal+1; i<=counter;i++)
{
copy_bitmaps_to_buffer(i,rgncache,tracker);
}
}
else
{
int i = 0;
for (i =oldaantal+1;i<MAXCHANGES_BUF;i++)
{
copy_bitmaps_to_buffer(i,rgncache,tracker);
}
for (i=1;i<=counter;i++)
{
copy_bitmaps_to_buffer(i,rgncache,tracker);
}
}
// vnclog.Print(LL_INTINFO, VNCLOG("Nr rects %i \n"),rgncache.Numrects());
m_desktop->m_videodriver->oldaantal=counter;
// A lot updates left after combining
// This generates an overflow
// We expand each single update to minimum 32x32
if (rgncache.Numrects()>150)
{
rfb::Region2D rgntemp;
rfb::RectVector rects;
rfb::RectVector::iterator i;
rgncache.get_rects(rects, 1, 1);
for (i = rects.begin(); i != rects.end(); i++)
{
rfb::Rect rect = *i;
rect.tl.x=rect.tl.x/32*32;
rect.tl.y=rect.tl.y/32*32;
rect.br.x=rect.br.x/32*32+32;
rect.br.y=rect.br.y/32*32+32;
if (rect.br.x>m_desktop->m_bmrect.br.x) rect.br.x=m_desktop->m_bmrect.br.x;
if (rect.br.y>m_desktop->m_bmrect.br.y) rect.br.y=m_desktop->m_bmrect.br.y;
rgntemp.assign_union(rect);
}
//Still to many little updates
//Use the bounding rectangle for updates
if (rgntemp.Numrects()>50)
{
Rect brect=rgntemp.get_bounding_rect();
rgncache.clear();
rgncache.assign_union(brect);
}
else
{
rgncache.clear();
rgncache.assign_union(rgntemp);
}
}
return TRUE;
}