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/*=========================================================================
Program: ParaView
Module: $RCSfile$
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkSMDataDeliveryManager.h"
#include "vtkCamera.h"
#include "vtkClientServerStream.h"
#include "vtkNew.h"
#include "vtkObjectFactory.h"
#include "vtkPVDataDeliveryManager.h"
#include "vtkPVRenderView.h"
#include "vtkPVStreamingPiecesInformation.h"
#include "vtkRenderer.h"
#include "vtkSMSession.h"
#include "vtkSMViewProxy.h"
#include "vtkTimerLog.h"
#include <assert.h>
vtkStandardNewMacro(vtkSMDataDeliveryManager);
//----------------------------------------------------------------------------
vtkSMDataDeliveryManager::vtkSMDataDeliveryManager()
{
}
//----------------------------------------------------------------------------
vtkSMDataDeliveryManager::~vtkSMDataDeliveryManager()
{
}
//----------------------------------------------------------------------------
void vtkSMDataDeliveryManager::SetViewProxy(vtkSMViewProxy* viewproxy)
{
if (viewproxy != this->ViewProxy)
{
this->ViewProxy = viewproxy;
this->Modified();
}
}
//----------------------------------------------------------------------------
void vtkSMDataDeliveryManager::Deliver(bool interactive)
{
assert(this->ViewProxy != NULL);
vtkPVRenderView* view = vtkPVRenderView::SafeDownCast(
this->ViewProxy->GetClientSideObject());
bool use_lod = interactive && view->GetUseLODForInteractiveRender();
bool use_distributed_rendering =
interactive? view->GetUseDistributedRenderingForInteractiveRender():
view->GetUseDistributedRenderingForStillRender();
unsigned long update_ts = view->GetUpdateTimeStamp();
int delivery_type = LOCAL_RENDERING_AND_FULL_RES;
if (!use_lod && use_distributed_rendering)
{
delivery_type = REMOTE_RENDERING_AND_FULL_RES;
}
else if (use_lod && !use_distributed_rendering)
{
delivery_type = LOCAL_RENDERING_AND_LOW_RES;
}
else if (use_lod && use_distributed_rendering)
{
delivery_type = REMOTE_RENDERING_AND_LOW_RES;
}
vtkTimeStamp& timeStamp = this->DeliveryTimestamps[delivery_type];
if (timeStamp > update_ts)
{
// we delivered the data since the update. Nothing delivery to be done.
return;
}
std::vector<unsigned int> keys_to_deliver;
if (!view->GetDeliveryManager()->NeedsDelivery(timeStamp, keys_to_deliver, use_lod))
{
timeStamp.Modified();
return;
}
//cout << "Request Delivery: " << keys_to_deliver.size() << endl;
vtkTimerLog::MarkStartEvent("vtkSMDataDeliveryManager: Deliver Geometry");
vtkClientServerStream stream;
stream << vtkClientServerStream::Invoke
<< VTKOBJECT(this->ViewProxy)
<< "Deliver"
<< static_cast<int>(use_lod)
<< static_cast<unsigned int>(keys_to_deliver.size())
<< vtkClientServerStream::InsertArray(
&keys_to_deliver[0], static_cast<int>(keys_to_deliver.size()))
<< vtkClientServerStream::End;
this->ViewProxy->GetSession()->ExecuteStream(
this->ViewProxy->GetLocation(), stream, false);
timeStamp.Modified();
vtkTimerLog::MarkEndEvent("vtkSMDataDeliveryManager: Deliver Geometry");
}
//----------------------------------------------------------------------------
bool vtkSMDataDeliveryManager::DeliverStreamedPieces()
{
// Deliver() relies on the client telling the server about the representation
// that need data from the server-side. Deliver() can reliably determine that
// since representation objects on client side are indeed updated correctly
// when data changes (that's to the update-suppressing behaviour of
// vtkPVDataRepresentation subclasses).
// However for streaming, only the server-side representations update, hence
// client has no information about representations that have pieces to stream.
// Hence we do the following:
// 1. Ask data-server information about what representations have some pieces
// reader.
// 2. Request streamed pieces for those representations.
vtkTimerLog::MarkStartEvent(
"vtkSMDataDeliveryManager: Deliver Geometry (streaming)");
vtkNew<vtkPVStreamingPiecesInformation> info;
this->ViewProxy->GatherInformation(info.GetPointer(), vtkPVSession::DATA_SERVER);
std::vector<unsigned int> keys_to_deliver;
info->GetKeys(keys_to_deliver);
if (keys_to_deliver.size() != 0)
{
vtkSMSession* session = this->ViewProxy->GetSession();
vtkClientServerStream stream;
stream << vtkClientServerStream::Invoke
<< VTKOBJECT(this->ViewProxy)
<< "DeliverStreamedPieces"
<< static_cast<unsigned int>(keys_to_deliver.size())
<< vtkClientServerStream::InsertArray(
&keys_to_deliver[0], static_cast<int>(keys_to_deliver.size()))
<< vtkClientServerStream::End;
session->ExecuteStream(this->ViewProxy->GetLocation(), stream, false);
}
vtkTimerLog::MarkEndEvent(
"vtkSMDataDeliveryManager: Deliver Geometry (streaming)");
return keys_to_deliver.size() > 0;
}
//----------------------------------------------------------------------------
void vtkSMDataDeliveryManager::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
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