/*!
In case of attached mode, the current context must be reset to context for client
\param [in] event Event sent to server
*/
void CContextClient::sendEvent(CEventClient& event)
{
list<int> ranks = event.getRanks();
if (!event.isEmpty())
{
list<int> sizes = event.getSizes();
// We force the getBuffers call to be non-blocking on the servers
list<CBufferOut*> buffList;
bool couldBuffer = getBuffers(ranks, sizes, buffList, !CXios::isClient);
if (couldBuffer)
{
event.send(timeLine, sizes, buffList);
checkBuffers(ranks);
if (isAttachedModeEnabled()) // couldBuffer is always true in attached mode
{
waitEvent(ranks);
CContext::setCurrent(context->getId());
}
}
else
{
tmpBufferedEvent.ranks = ranks;
tmpBufferedEvent.sizes = sizes;
for (list<int>::const_iterator it = sizes.begin(); it != sizes.end(); it++)
tmpBufferedEvent.buffers.push_back(new CBufferOut(*it));
event.send(timeLine, tmpBufferedEvent.sizes, tmpBufferedEvent.buffers);
}
}
timeLine++;
}
/*!
* Send the temporarily buffered event (if any).
*
* \return true if a temporarily buffered event could be sent, false otherwise
*/
bool CContextClient::sendTemporarilyBufferedEvent()
{
bool couldSendTmpBufferedEvent = false;
if (hasTemporarilyBufferedEvent())
{
list<CBufferOut*> buffList;
if (getBuffers(tmpBufferedEvent.ranks, tmpBufferedEvent.sizes, buffList, true)) // Non-blocking call
{
list<CBufferOut*>::iterator it, itBuffer;
for (it = tmpBufferedEvent.buffers.begin(), itBuffer = buffList.begin(); it != tmpBufferedEvent.buffers.end(); it++, itBuffer++)
(*itBuffer)->put((char*)(*it)->start(), (*it)->count());
checkBuffers(tmpBufferedEvent.ranks);
tmpBufferedEvent.clear();
couldSendTmpBufferedEvent = true;
}
}
return couldSendTmpBufferedEvent;
}
Images FrameData::startReadback( const Frame& frame,
util::ObjectManager& glObjects,
const DrawableConfig& config,
const PixelViewports& regions )
{
if( _impl->data.buffers == Frame::BUFFER_NONE )
return Images();
const Zoom& zoom = frame.getZoom();
if( !zoom.isValid( ))
{
LBWARN << "Invalid zoom factor, skipping frame" << std::endl;
return Images();
}
const eq::PixelViewport& framePVP = getPixelViewport();
const PixelViewport absPVP = framePVP + frame.getOffset();
if( !absPVP.isValid( ))
return Images();
Images images;
// readback the whole screen when using textures
if( getType() == eq::Frame::TYPE_TEXTURE )
{
Image* image = newImage( getType(), config );
if( image->startReadback( getBuffers(), absPVP, zoom, glObjects ))
images.push_back( image );
image->setOffset( 0, 0 );
return images;
}
//else read only required regions
#if 0
// TODO: issue #85: move automatic ROI detection to eq::Channel
PixelViewports regions;
if( _impl->data.buffers & Frame::BUFFER_DEPTH && zoom == Zoom::NONE )
regions = _impl->roiFinder->findRegions( _impl->data.buffers, absPVP,
zoom, frame.getAssemblyStage(),
frame.getFrameID(), glObjects);
else
regions.push_back( absPVP );
#endif
LBASSERT( getType() == eq::Frame::TYPE_MEMORY );
const eq::Pixel& pixel = getPixel();
for( uint32_t i = 0; i < regions.size(); ++i )
{
PixelViewport pvp = regions[ i ] + frame.getOffset();
pvp.intersect( absPVP );
if( !pvp.hasArea( ))
continue;
Image* image = newImage( getType(), config );
if( image->startReadback( getBuffers(), pvp, zoom, glObjects ))
images.push_back( image );
pvp -= frame.getOffset();
pvp.apply( zoom );
image->setOffset( (pvp.x - framePVP.x) * pixel.w,
(pvp.y - framePVP.y) * pixel.h );
}
return images;
}
/*!
Requests the buffer to reduce its capacity to fit the data currently
contained in the stream.
*/
void SendBuffer::squeeze()
{
for (RawSendBuffer & buffer : getBuffers()) {
buffer.squeeze();
}
}
