/*=========================================================================

Copyright (c) 1998-2012 Kitware Inc. 28 Corporate Drive,
Clifton Park, NY, 12065, USA.

All rights reserved. No part of this software may be reproduced,
distributed,
or modified, in any form or by any means, without permission in writing from
Kitware Inc.

IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY DERIVATIVES THEREOF,
EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, AND NON-INFRINGEMENT.  THIS SOFTWARE IS PROVIDED ON AN
"AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO
PROVIDE
MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
=========================================================================*/
#include "vtkCMBLargeTextureSurfaceRepresentation.h"

#include "vtkCompositeDataIterator.h"
#include "vtkCompositeDataSet.h"
#include "vtkImageData.h"
#include "vtkImageTextureCrop.h"
#include "vtkInformation.h"
#include "vtkInformationRequestKey.h"
#include "vtkInformationVector.h"
#include "vtkMath.h"
#include "vtkObjectFactory.h"
#include "vtkPolyDataMapper.h"
#include "vtkPVCacheKeeper.h"
#include "vtkPVLODActor.h"
#include "vtkPVRenderView.h"
#include "vtkQuadricClustering.h"
#include "vtkRenderer.h"
#include "vtkSmartPointer.h"

vtkStandardNewMacro(vtkCMBLargeTextureSurfaceRepresentation);
//----------------------------------------------------------------------------
vtkCMBLargeTextureSurfaceRepresentation::vtkCMBLargeTextureSurfaceRepresentation()
{
  this->SetNumberOfInputPorts(2); // 2nd input port for image for large texture

  this->LODTextureCrop = vtkImageTextureCrop::New();
  this->LODTextureCrop->SetInputConnection( this->Decimator->GetOutputPort() );
  this->TextureCrop = vtkImageTextureCrop::New();
  this->TextureCrop->SetInputConnection( this->CacheKeeper->GetOutputPort() );
  this->LargeTexture = 0;
}

//----------------------------------------------------------------------------
vtkCMBLargeTextureSurfaceRepresentation::~vtkCMBLargeTextureSurfaceRepresentation()
{
  this->LODTextureCrop->Delete();
  this->TextureCrop->Delete();
  if (this->LargeTexture)
    {
    this->LargeTexture->Delete();
    }
}

//----------------------------------------------------------------------------
void vtkCMBLargeTextureSurfaceRepresentation::RemoveLargeTextureInput()
{
  this->SetInputConnection(1, 0);
}

//----------------------------------------------------------------------------
void vtkCMBLargeTextureSurfaceRepresentation::PrintSelf(ostream& os, vtkIndent indent)
{
  this->Superclass::PrintSelf(os, indent);
}


//----------------------------------------------------------------------------
bool vtkCMBLargeTextureSurfaceRepresentation::AddToView(vtkView* view)
{
  vtkPVRenderView* rView = vtkPVRenderView::SafeDownCast(view);
  if (rView)
    {
    this->TextureCrop->SetRenderer( rView->GetRenderer() );
    }

  return this->Superclass::AddToView(view);
}

//----------------------------------------------------------------------------
int vtkCMBLargeTextureSurfaceRepresentation::ProcessViewRequest(
  vtkInformationRequestKey* request_type,
  vtkInformation* inInfo, vtkInformation* outInfo)
{
  if(!this->Superclass::ProcessViewRequest(request_type, inInfo, outInfo))
    {
    return 0;
    }

  if (this->LargeTexture)
    {
    vtkImageData *textureInput = this->LargeTexture->GetInput();
    if(request_type == vtkPVView::REQUEST_UPDATE())
      {
      vtkPVRenderView::SetPiece(inInfo, this,
        this->TextureCrop->GetOutputDataObject(0));
      this->TextureCrop->Modified();
      this->TextureCrop->Update();
      textureInput->ShallowCopy( this->TextureCrop->GetOutputDataObject(1) );
      textureInput->Modified();
      }
    else if(request_type == vtkPVView::REQUEST_UPDATE_LOD())
      {
      vtkPVRenderView::SetPieceLOD(inInfo, this,
        this->LODTextureCrop->GetOutputDataObject(0));
      this->LODTextureCrop->Update(); // should only do somethign the first time
      textureInput->ShallowCopy( this->LODTextureCrop->GetOutputDataObject(1) );
      textureInput->Modified();
      }
    }

  return 1;
}


//----------------------------------------------------------------------------
int vtkCMBLargeTextureSurfaceRepresentation::RequestData(vtkInformation* request,
  vtkInformationVector** inputVector, vtkInformationVector* outputVector)
{
  vtkMath::UninitializeBounds(this->DataBounds);

  // Pass caching information to the cache keeper.
  this->CacheKeeper->SetCachingEnabled(this->GetUseCache());
  this->CacheKeeper->SetCacheTime(this->GetCacheKey());

  if (inputVector[0]->GetNumberOfInformationObjects()==1)
    {
    this->GeometryFilter->SetInputConnection(
      this->GetInternalOutputPort());
    this->CacheKeeper->Update();

    if (inputVector[1]->GetNumberOfInformationObjects()==1)
      {
      this->TextureCrop->SetImageData( vtkDataSet::SafeDownCast( this->GetInput(1) ));
      this->LODTextureCrop->SetImageData( vtkDataSet::SafeDownCast( this->GetInput(1) ));
      if (!this->LargeTexture)
        {
        this->LargeTexture = vtkTexture::New();
        vtkImageData *textureInput = vtkImageData::New();
        this->LargeTexture->SetInputData( textureInput );
        textureInput->FastDelete();
        }
      this->Actor->SetTexture( this->LargeTexture );
      }
    else
      {
      if (this->LargeTexture)
        {
        this->LargeTexture->Delete();
        this->LargeTexture = 0;
        this->Actor->SetTexture( 0 );
        }
      }
    }

  // Determine data bounds.
  vtkCompositeDataSet* cd = vtkCompositeDataSet::SafeDownCast(
    this->CacheKeeper->GetOutputDataObject(0));
  if (cd)
    {
    vtkBoundingBox bbox;
    vtkCompositeDataIterator* iter = cd->NewIterator();
    for (iter->InitTraversal(); !iter->IsDoneWithTraversal(); iter->GoToNextItem())
      {
      vtkDataSet* ds = vtkDataSet::SafeDownCast(iter->GetCurrentDataObject());
      if (ds)
        {
        bbox.AddBounds(ds->GetBounds());
        }
      }
    iter->Delete();
    if (bbox.IsValid())
      {
      bbox.GetBounds(this->DataBounds);
      }
    }

  return this->vtkPVDataRepresentation::RequestData(request, inputVector, outputVector);
}

//----------------------------------------------------------------------------
int vtkCMBLargeTextureSurfaceRepresentation::FillInputPortInformation(int port,
  vtkInformation *info)
{
  if (port == 0)
    {
    return this->Superclass::FillInputPortInformation(port, info);
    }
  else if (port == 1)
    {
    info->Set(vtkAlgorithm::INPUT_IS_OPTIONAL(), 1);
    info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkImageData");
    return 1;
    }

  return 0;
}

