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/*=========================================================================
Program: Visualization Toolkit
Module: TestGPURayCastReleaseResources.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm 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.
=========================================================================*/
// This is a test to make sure graphics resources are properly released and
// re-allocated when the context changes
#include <vtkActor.h>
#include <vtkCamera.h>
#include <vtkColorTransferFunction.h>
#include <vtkCommand.h>
#include <vtkGPUVolumeRayCastMapper.h>
#include <vtkImageData.h>
#include <vtkNew.h>
#include <vtkPiecewiseFunction.h>
#include <vtkPlane.h>
#include <vtkPlaneCollection.h>
#include <vtkPolyDataMapper.h>
#include <vtkRegressionTestImage.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSmartPointer.h>
#include <vtkSphereSource.h>
#include <vtkTestUtilities.h>
#include <vtkTimerLog.h>
#include <vtkVolumeProperty.h>
#include <vtkXMLImageDataReader.h>
int TestGPURayCastReleaseResources(int argc, char *argv[])
{
double scalarRange[2];
vtkNew<vtkGPUVolumeRayCastMapper> volumeMapper;
vtkNew<vtkXMLImageDataReader> reader;
const char* volumeFile = vtkTestUtilities::ExpandDataFileName(
argc, argv, "Data/vase_1comp.vti");
reader->SetFileName(volumeFile);
reader->Update();
volumeMapper->SetInputConnection(reader->GetOutputPort());
volumeMapper->GetInput()->GetScalarRange(scalarRange);
volumeMapper->SetBlendModeToComposite();
// Testing prefers image comparison with small images
vtkRenderWindow* renWin =
vtkRenderWindow::New();
// Intentional odd and NPOT width/height
renWin->SetSize(500, 401);
vtkNew<vtkRenderer> ren;
renWin->AddRenderer(ren.GetPointer());
vtkNew<vtkPiecewiseFunction> scalarOpacity;
scalarOpacity->AddPoint(scalarRange[0], 0.0);
scalarOpacity->AddPoint(scalarRange[1], 1.0);
vtkNew<vtkVolumeProperty> volumeProperty;
volumeProperty->ShadeOff();
volumeProperty->SetInterpolationType(VTK_LINEAR_INTERPOLATION);
volumeProperty->SetScalarOpacity(scalarOpacity.GetPointer());
vtkSmartPointer<vtkColorTransferFunction> colorTransferFunction =
volumeProperty->GetRGBTransferFunction(0);
colorTransferFunction->RemoveAllPoints();
colorTransferFunction->AddRGBPoint(scalarRange[0], 0.1, 0.5, 1.0);
colorTransferFunction->AddRGBPoint(scalarRange[1], 1.0, 0.5, 0.1);
// Setup volume actor
vtkNew<vtkVolume> volume;
volume->SetMapper(volumeMapper.GetPointer());
volume->SetProperty(volumeProperty.GetPointer());
ren->AddViewProp(volume.GetPointer());
ren->GetActiveCamera()->Azimuth(-40);
ren->ResetCamera();
renWin->Render();
// Delete the old render window to release graphics resources
renWin->Delete();
vtkNew<vtkRenderWindow> renWin2;
renWin2->SetSize(300, 401);
renWin2->AddRenderer(ren.GetPointer());
renWin2->Render();
vtkNew<vtkRenderWindowInteractor> iren;
iren->SetRenderWindow(renWin2.GetPointer());
iren->Initialize();
int retVal = vtkRegressionTestImage( renWin2.GetPointer() );
if( retVal == vtkRegressionTester::DO_INTERACTOR)
{
iren->Start();
}
return !retVal;
}
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