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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
// Tests PTextureMapToSphere.
/*
** This test only builds if MPI is in use
*/
#include "vtkActor.h"
#include "vtkCompositeRenderManager.h"
#include "vtkMPICommunicator.h"
#include "vtkMPIController.h"
#include "vtkNew.h"
#include "vtkObjectFactory.h"
#include "vtkPNGReader.h"
#include "vtkPTextureMapToSphere.h"
#include "vtkPolyDataMapper.h"
#include "vtkProcess.h"
#include "vtkRegressionTestImage.h"
#include "vtkRenderWindow.h"
#include "vtkRenderer.h"
#include "vtkSphereSource.h"
#include "vtkSuperquadricSource.h"
#include "vtkTestUtilities.h"
#include "vtkTesting.h"
#include "vtkTexture.h"
#include <vtk_mpi.h>
namespace
{
class MyProcess : public vtkProcess
{
public:
static MyProcess* New();
void Execute() override;
void SetArgs(int anArgc, char* anArgv[]);
protected:
MyProcess();
int Argc;
char** Argv;
};
vtkStandardNewMacro(MyProcess);
MyProcess::MyProcess()
{
this->Argc = 0;
this->Argv = nullptr;
}
void MyProcess::SetArgs(int anArgc, char* anArgv[])
{
this->Argc = anArgc;
this->Argv = anArgv;
}
void MyProcess::Execute()
{
this->ReturnValue = 1;
int numProcs = this->Controller->GetNumberOfProcesses();
int me = this->Controller->GetLocalProcessId();
cout << "Nb process found: " << numProcs << endl;
vtkNew<vtkCompositeRenderManager> prm;
vtkNew<vtkSuperquadricSource> superquadric;
vtkNew<vtkSphereSource> sphere;
vtkNew<vtkPTextureMapToSphere> textureMap;
vtkNew<vtkPolyDataMapper> mapper;
superquadric->ToroidalOff();
sphere->SetThetaResolution(16);
sphere->SetPhiResolution(16);
// Testing with superquadric which produces processes with no input data
textureMap->SetInputConnection(superquadric->GetOutputPort());
mapper->SetInputConnection(textureMap->GetOutputPort());
mapper->SetScalarRange(0, numProcs);
mapper->SetPiece(me);
mapper->SetSeamlessU(true);
mapper->SetNumberOfPieces(numProcs);
mapper->Update();
// Actually testing in parallel
textureMap->SetInputConnection(sphere->GetOutputPort());
mapper->Update();
char* fname =
vtkTestUtilities::ExpandDataFileName(this->Argc, this->Argv, "Data/two_vtk_logos_stacked.png");
vtkNew<vtkPNGReader> PNGReader;
PNGReader->SetFileName(fname);
PNGReader->Update();
delete[] fname;
vtkNew<vtkTexture> texture;
texture->SetInputConnection(PNGReader->GetOutputPort());
texture->InterpolateOn();
vtkNew<vtkActor> actor;
actor->SetTexture(texture);
actor->SetMapper(mapper);
vtkRenderer* renderer = prm->MakeRenderer();
renderer->AddActor(actor);
renderer->SetBackground(0.5, 0.7, 0.7);
vtkRenderWindow* renWin = prm->MakeRenderWindow();
renWin->AddRenderer(renderer);
renWin->SetSize(400, 400);
prm->SetRenderWindow(renWin);
prm->SetController(this->Controller);
prm->InitializeOffScreen(); // Mesa GL only
constexpr int MY_RETURN_VALUE_MESSAGE = 21545;
if (me == 0)
{
renWin->Render();
this->ReturnValue = vtkRegressionTester::Test(this->Argc, this->Argv, renWin, 10);
for (int i = 1; i < numProcs; ++i)
{
this->Controller->Send(&this->ReturnValue, 1, i, MY_RETURN_VALUE_MESSAGE);
}
prm->StopServices();
}
else
{
prm->StartServices();
this->Controller->Receive(&this->ReturnValue, 1, 0, MY_RETURN_VALUE_MESSAGE);
}
renderer->Delete();
renWin->Delete();
}
}
int PTextureMapToSphere(int argc, char* argv[])
{
// This is here to avoid false leak messages from vtkDebugLeaks when
// using mpich. It appears that the root process which spawns all the
// main processes waits in MPI_Init() and calls exit() when
// the others are done, causing apparent memory leaks for any objects
// created before MPI_Init().
MPI_Init(&argc, &argv);
// Note that this will create a vtkMPIController if MPI
// is configured, vtkThreadedController otherwise.
vtkNew<vtkMPIController> contr;
contr->Initialize(&argc, &argv, 1);
int retVal = 1;
vtkMultiProcessController::SetGlobalController(contr);
int me = contr->GetLocalProcessId();
if (!contr->IsA("vtkMPIController"))
{
if (me == 0)
{
cout << "DistributedData test requires MPI" << endl;
}
return retVal; // is this the right error val? TODO
}
vtkNew<MyProcess> p;
p->SetArgs(argc, argv);
contr->SetSingleProcessObject(p);
contr->SingleMethodExecute();
retVal = p->GetReturnValue();
contr->Finalize();
return !retVal;
}
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