// 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;
}
