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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#include "vtkAdaptiveResampleToImage.h"
#include "vtkBoundingBox.h"
#include "vtkClipDataSet.h"
#include "vtkDataSet.h"
#include "vtkLogger.h"
#include "vtkMath.h"
#include "vtkNew.h"
#include "vtkPartitionedDataSet.h"
#include "vtkRTAnalyticSource.h"
#if VTK_MODULE_ENABLE_VTK_ParallelMPI
#include "vtkMPIController.h"
#else
#include "vtkDummyController.h"
#endif
#include <numeric>
#include <vector>
namespace
{
bool ValidateDataset(vtkPartitionedDataSet* pds, vtkMultiProcessController* controller,
int numLeaves, const vtkBoundingBox& gbox)
{
numLeaves = vtkMath::NearestPowerOfTwo(numLeaves);
const int numParts = static_cast<int>(pds->GetNumberOfPartitions());
int allParts = numParts;
controller->AllReduce(&numParts, &allParts, 1, vtkCommunicator::SUM_OP);
if (allParts != numLeaves)
{
vtkLogF(ERROR, "Error: mismatched leaves. expected: %d, got %d", numLeaves, allParts);
return false;
}
// validate all boxes same as the input dataset box.
double bds[6];
vtkMath::UninitializeBounds(bds);
pds->GetBounds(bds);
vtkBoundingBox bbox, allbbox;
bbox.SetBounds(bds);
controller->AllReduce(bbox, allbbox);
if (allbbox != gbox)
{
vtkLogF(ERROR, "Error: mismatched bounds!");
return false;
}
// validate no bounding boxes overlap.
std::vector<int> parts(controller->GetNumberOfProcesses());
parts[controller->GetLocalProcessId()] = numParts;
controller->AllGather(&numParts, parts.data(), 1);
std::vector<double> local_boxes(6 * numParts);
for (int cc = 0; cc < numParts; ++cc)
{
vtkDataSet::SafeDownCast(pds->GetPartition(cc))->GetBounds(&local_boxes[6 * cc]);
}
std::vector<double> boxes(6 * std::accumulate(parts.begin(), parts.end(), 0));
std::vector<vtkIdType> recvLengths(controller->GetNumberOfProcesses());
std::vector<vtkIdType> offsets(controller->GetNumberOfProcesses());
controller->AllGatherV(local_boxes.data(), boxes.data(),
static_cast<vtkIdType>(local_boxes.size()), recvLengths.data(), offsets.data());
if (controller->GetNumberOfProcesses() == 1)
{
boxes = local_boxes;
}
for (size_t i = 0; i < (boxes.size()) / 6; ++i)
{
const vtkBoundingBox boxA(&boxes[6 * i]);
for (size_t j = i + 1; j < (boxes.size()) / 6; ++j)
{
const vtkBoundingBox boxB(&boxes[6 * j]);
int overlap = 0;
for (int dim = 0; dim < 3; ++dim)
{
if (boxB.GetMinPoint()[dim] > boxA.GetMinPoint()[dim] &&
boxB.GetMinPoint()[dim] < boxA.GetMaxPoint()[dim])
{
overlap++;
}
else if (boxB.GetMaxPoint()[dim] > boxA.GetMinPoint()[dim] &&
boxB.GetMaxPoint()[dim] < boxA.GetMaxPoint()[dim])
{
overlap++;
}
}
if (overlap == 3)
{
vtkLogF(ERROR, "Error: boxes overlap!");
abort();
}
}
}
return true;
}
}
int TestAdaptiveResampleToImage(int argc, char* argv[])
{
#if VTK_MODULE_ENABLE_VTK_ParallelMPI
vtkMPIController* contr = vtkMPIController::New();
#else
vtkDummyController* contr = vtkDummyController::New();
#endif
contr->Initialize(&argc, &argv);
vtkMultiProcessController::SetGlobalController(contr);
int status = EXIT_SUCCESS;
// Create Pipeline
vtkNew<vtkRTAnalyticSource> wavelet;
wavelet->SetWholeExtent(0, 63, 0, 63, 0, 63);
wavelet->SetCenter(16, 16, 16);
vtkNew<vtkClipDataSet> clip;
clip->SetInputConnection(wavelet->GetOutputPort());
clip->SetValue(157);
vtkNew<vtkAdaptiveResampleToImage> resampler;
resampler->SetNumberOfImages(4);
resampler->SetInputConnection(clip->GetOutputPort());
resampler->SetSamplingDimensions(8, 8, 8);
resampler->UpdatePiece(contr->GetLocalProcessId(), contr->GetNumberOfProcesses(), 0);
double bds[6];
vtkDataSet::SafeDownCast(clip->GetOutputDataObject(0))->GetBounds(bds);
vtkBoundingBox bbox(bds), allbbox;
contr->AllReduce(bbox, allbbox);
if (!ValidateDataset(
vtkPartitionedDataSet::SafeDownCast(resampler->GetOutputDataObject(0)), contr, 4, allbbox))
{
status = EXIT_FAILURE;
}
resampler->SetNumberOfImages(6);
resampler->UpdatePiece(contr->GetLocalProcessId(), contr->GetNumberOfProcesses(), 0);
if (!ValidateDataset(
vtkPartitionedDataSet::SafeDownCast(resampler->GetOutputDataObject(0)), contr, 6, allbbox))
{
status = EXIT_FAILURE;
}
resampler->SetNumberOfImages(3);
resampler->UpdatePiece(contr->GetLocalProcessId(), contr->GetNumberOfProcesses(), 0);
if (!ValidateDataset(
vtkPartitionedDataSet::SafeDownCast(resampler->GetOutputDataObject(0)), contr, 3, allbbox))
{
status = EXIT_FAILURE;
}
vtkMultiProcessController::SetGlobalController(nullptr);
contr->Finalize();
contr->Delete();
return status;
}
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