[vtkusers] Problem with threads in VTK
Wagner Sales
wsales at gmail.com
Wed Oct 15 19:37:45 EDT 2008
Hi all,
I'm writing viewer using vtkViewImage2D and vtkViewImage3DWithTracer (
from vtkInria3D, because that a copy was be sent to the vtkInria list
too ) to render a dataset and a vtkExtractVOI to extract a volume of
interest interactively. Basically, which I do are select a box in a 2D
viewer, get the points and extract the required data. The extraction
works fine if I use only one viewer. If I use more than one viewer, it
crashes in next interaction after set the vtkExtractVOI output in the
views. My code uses only VTK ( no other GUI support to prevent threads
from the GUI toolkit ). I think I need to do some more other thing to
manage the threads, but I really don't know whats I needs. The
important pieces of the code are explained above:
---- simple setup of the views, extractor and VTK rendering stuff, in
class constructor:
vtkRenderer* rend1 = vtkRenderer::New();
vtkRenderer* rend2 = vtkRenderer::New();
vtkRenderer* rend3 = vtkRenderer::New();
vtkRenderer* rend4 = vtkRenderer::New();
m_RenderWindow1 = vtkRenderWindow::New();
m_RenderWindow2 = vtkRenderWindow::New();
m_RenderWindow3 = vtkRenderWindow::New();
m_RenderWindow4 = vtkRenderWindow::New();
m_RenderWindow1->AddRenderer(rend1);
m_RenderWindow2->AddRenderer(rend2);
m_RenderWindow3->AddRenderer(rend3);
m_RenderWindow4->AddRenderer(rend4);
m_ViewInteractor1 = vtkRenderWindowInteractor::New();
m_ViewInteractor2 = vtkRenderWindowInteractor::New();
m_ViewInteractor3 = vtkRenderWindowInteractor::New();
m_ViewInteractor4 = vtkRenderWindowInteractor::New();
m_ViewInteractor1->SetRenderWindow(m_RenderWindow1);
m_ViewInteractor2->SetRenderWindow(m_RenderWindow2);
m_ViewInteractor3->SetRenderWindow(m_RenderWindow3);
m_ViewInteractor4->SetRenderWindow(m_RenderWindow4);
m_View1 = vtkViewImage2DWithTracer::New();
m_View2 = vtkViewImage2DWithTracer::New();
m_View3 = vtkViewImage2DWithTracer::New();
m_View4 = vtkViewImage3D::New();
m_View1->SetRenderWindow (m_ViewInteractor1->GetRenderWindow());
m_View2->SetRenderWindow (m_ViewInteractor2->GetRenderWindow());
m_View3->SetRenderWindow (m_ViewInteractor3->GetRenderWindow());
m_View4->SetRenderWindow (m_ViewInteractor4->GetRenderWindow());
m_View1->SetRenderer (rend1);
m_View2->SetRenderer (rend2);
m_View3->SetRenderer (rend3);
m_View4->SetRenderer (rend4);
rend1->Delete();
rend2->Delete();
rend3->Delete();
rend4->Delete();
-----------------------------------------------------------------------------------------------------------------------------
--- set input
m_View1->SetImage(image);
m_View2->SetImage(image);
m_View3->SetImage(image);
m_View4->SetImage(image);
-----------------------------------------------------------------------------------------------------------------------------
--- the extract voi method
int minz = GetInput()->GetExtent()[4];
int maxz = GetInput()->GetExtent()[5];
Extractor->SetInput(this->GetInput()); // this method returns the
current image, working fine
Extractor->SetVOI(BoxExtractor->GetStartPosition()[0],
BoxExtractor->GetEndPosition()[0],
BoxExtractor->GetStartPosition()[1],
BoxExtractor->GetEndPosition()[1], minz, maxz);
Extractor->Update(); // the BoxExtractor are my box with positions.
Working fine too, since I extract and are Ok in the first view.
this->SetInput(Extractor->GetOutput());
this->Render();
-----------------------------------------------------------------------------------------------------------------------------
--- the render method:
m_View1->Render();
m_View2->Render();
m_View3->Render();
// m_View4->Render(); commented because the crash are occurs here in
first render
-----------------------------------------------------------------------------------------------------------------------------
The crash will occurs in the next render. I really think that's I'm
done some wrong thing with threads, and the problem are a
misunderstand of threads management in VTK. I don't well understood
why two threads here.
The dump of two threads are above:
-- this is the thread 1
#0 0x00007fb6869ff27f in __lll_unlock_wake_private () from /lib/libpthread.so.0
#1 0x00007fb6869f95d3 in _L_unlock_4096 () from /lib/libpthread.so.0
#2 0x00007fb6869f8fa9 in pthread_create@@GLIBC_2.2.5 () from
/lib/libpthread.so.0
#3 0x00007fb6895ba40f in vtkMultiThreader::SingleMethodExecute
(this=0x10d2430) at
/home/wsales/Sources/VTK/Common/vtkMultiThreader.cxx:368
#4 0x00007fb689c56532 in vtkThreadedImageAlgorithm::RequestData
(this=0x10d1740, request=0x20537b0, inputVector=0xf7df10,
outputVector=0x11f6560) at
/home/wsales/Sources/VTK/Filtering/vtkThreadedImageAlgorithm.cxx:292
#5 0x00007fb68a1feaf9 in vtkImageMapToColors::RequestData
(this=0x10d1740, request=0x20537b0, inputVector=0xf7df10,
outputVector=0x11f6560) at
/home/wsales/Sources/VTK/Imaging/vtkImageMapToColors.cxx:100
#6 0x00007fb689b6a06c in vtkImageAlgorithm::ProcessRequest
(this=0x10d1740, request=0x20537b0, inputVector=0xf7df10,
outputVector=0x11f6560) at
/home/wsales/Sources/VTK/Filtering/vtkImageAlgorithm.cxx:95
#7 0x00007fb689b1c9a8 in vtkExecutive::CallAlgorithm (this=0x12308d0,
request=0x20537b0, direction=1, inInfo=0xf7df10, outInfo=0x11f6560) at
/home/wsales/Sources/VTK/Filtering/vtkExecutive.cxx:748
#8 0x00007fb689b13471 in vtkDemandDrivenPipeline::ExecuteData
(this=0x12308d0, request=0x20537b0, inInfo=0xf7df10,
outInfo=0x11f6560) at
/home/wsales/Sources/VTK/Filtering/vtkDemandDrivenPipeline.cxx:502
#9 0x00007fb689b16d34 in vtkDemandDrivenPipeline::ProcessRequest
(this=0x12308d0, request=0x20537b0, inInfoVec=0xf7df10,
outInfoVec=0x11f6560) at
/home/wsales/Sources/VTK/Filtering/vtkDemandDrivenPipeline.cxx:274
#10 0x00007fb689c40441 in
vtkStreamingDemandDrivenPipeline::ProcessRequest (this=0x12308d0,
request=0x20537b0, inInfoVec=0xf7df10, outInfoVec=0x11f6560) at
/home/wsales/Sources/VTK/Filtering/vtkStreamingDemandDrivenPipeline.cxx:158
#11 0x00007fb689b16909 in vtkDemandDrivenPipeline::UpdateData
(this=0x12308d0, outputPort=0) at
/home/wsales/Sources/VTK/Filtering/vtkDemandDrivenPipeline.cxx:444
#12 0x00007fb689b01959 in vtkDataObject::UpdateData (this=0xfb3990) at
/home/wsales/Sources/VTK/Filtering/vtkDataObject.cxx:1072
#13 0x00007fb68c5ce230 in vtkImageActor::RenderOpaqueGeometry
(this=0x10d4ac0, viewport=0xf57d60) at
/home/wsales/Sources/VTK/Rendering/vtkImageActor.cxx:254
#14 0x00007fb68c66414c in vtkRenderer::UpdateGeometry (this=0xf57d60)
at /home/wsales/Sources/VTK/Rendering/vtkRenderer.cxx:567
#15 0x00007fb68c7118eb in vtkOpenGLRenderer::DeviceRender
(this=0xf57d60) at
/home/wsales/Sources/VTK/Rendering/vtkOpenGLRenderer.cxx:269
#16 0x00007fb68c664fc5 in vtkRenderer::Render (this=0xf57d60) at
/home/wsales/Sources/VTK/Rendering/vtkRenderer.cxx:296
#17 0x00007fb68c65ef6c in vtkRendererCollection::Render
(this=0xf59010) at
/home/wsales/Sources/VTK/Rendering/vtkRendererCollection.cxx:52
#18 0x00007fb68c67282e in vtkRenderWindow::DoStereoRender
(this=0xf58db0) at
/home/wsales/Sources/VTK/Rendering/vtkRenderWindow.cxx:708
#19 0x00007fb68c672df9 in vtkRenderWindow::DoFDRender (this=0xf58db0)
at /home/wsales/Sources/VTK/Rendering/vtkRenderWindow.cxx:677
#20 0x00007fb68c6735aa in vtkRenderWindow::DoAARender (this=0xf58db0)
at /home/wsales/Sources/VTK/Rendering/vtkRenderWindow.cxx:564
#21 0x00007fb68c673dc5 in vtkRenderWindow::Render (this=0xf58db0) at
/home/wsales/Sources/VTK/Rendering/vtkRenderWindow.cxx:377
#22 0x00007fb68c735254 in vtkXOpenGLRenderWindow::Render
(this=0xf58db0) at
/home/wsales/Sources/VTK/Rendering/vtkXOpenGLRenderWindow.cxx:1798
#23 0x00007fb6887c0697 in vtkSynchronizedView::Render (this=0x105b3a0)
at /home/wsales/Sources/vtkinria3d/vtkRenderingAddOn/vtkSynchronizedView.cxx:642
#24 0x00007fb6887c7111 in vtkViewImage::SyncSetCurrentPoint
(this=0xfc2130, p_point=0x7fff9889b350) at
/home/wsales/Sources/vtkinria3d/vtkRenderingAddOn/vtkViewImage.cxx:458
#25 0x00007fb6887c70cb in vtkViewImage::SyncSetCurrentPoint
(this=0x1014a20, p_point=0x7fff9889b350) at
/home/wsales/Sources/vtkinria3d/vtkRenderingAddOn/vtkViewImage.cxx:455
#26 0x00007fb6887c70cb in vtkViewImage::SyncSetCurrentPoint
(this=0xfd5490, p_point=0x7fff9889b350) at
/home/wsales/Sources/vtkinria3d/vtkRenderingAddOn/vtkViewImage.cxx:455
#27 0x00007fb6887bc0d3 in vtkViewImage::SyncSetPosition
(this=0xfd5490, p_point=0x7fff9889b350) at
/home/wsales/Sources/vtkinria3d/vtkRenderingAddOn/vtkViewImage.h:307
#28 0x00007fb6887bb39a in vtkViewImage2DCommand::ChangeZSlice
(this=0x1042ad0, p_isi=0x103b960) at
/home/wsales/Sources/vtkinria3d/vtkRenderingAddOn/vtkViewImage2DCommand.cxx:314
#29 0x00007fb6887bbda4 in vtkViewImage2DCommand::Execute
(this=0x1042ad0, caller=0x103b960, event=1001, callData=0x103b960) at
/home/wsales/Sources/vtkinria3d/vtkRenderingAddOn/vtkViewImage2DCommand.cxx:125
#30 0x00007fb6895bd88c in vtkSubjectHelper::InvokeEvent
(this=0x1041fe0, event=1001, callData=0x103b960, self=0x103b960) at
/home/wsales/Sources/VTK/Common/vtkObject.cxx:602
#31 0x00007fb6895bd9a4 in vtkObject::InvokeEvent (this=0x103b960,
event=1001, callData=0x103b960) at
/home/wsales/Sources/VTK/Common/vtkObject.cxx:770
#32 0x00007fb6887aadf4 in
vtkInteractorStyleImage2D::ZSliceWheelBackward (this=0x103b960) at
/home/wsales/Sources/vtkinria3d/vtkRenderingAddOn/vtkInteractorStyleImage2D.cxx:596
#33 0x00007fb6887aa687 in
vtkInteractorStyleImage2D::OnMouseWheelBackward (this=0x103b960) at
/home/wsales/Sources/vtkinria3d/vtkRenderingAddOn/vtkInteractorStyleImage2D.cxx:764
#34 0x00007fb68c5df348 in vtkInteractorStyle::ProcessEvents (event=28,
clientdata=0x103b960, calldata=0x0) at
/home/wsales/Sources/VTK/Rendering/vtkInteractorStyle.cxx:1020
#35 0x00007fb689508c14 in vtkCallbackCommand::Execute (this=0x103baa0,
caller=0xf77bd0, event=28, callData=0x0) at
/home/wsales/Sources/VTK/Common/vtkCallbackCommand.cxx:42
#36 0x00007fb6895bd88c in vtkSubjectHelper::InvokeEvent
(this=0xf8fcc0, event=28, callData=0x0, self=0xf77bd0) at
/home/wsales/Sources/VTK/Common/vtkObject.cxx:602
#37 0x00007fb6895bd9a4 in vtkObject::InvokeEvent (this=0xf77bd0,
event=28, callData=0x0) at
/home/wsales/Sources/VTK/Common/vtkObject.cxx:770
#38 0x00007fb68c6db2f0 in vtkXRenderWindowInteractorCallback
(client_data=0xf77bd0, event=0x7fff9889c050) at
/home/wsales/Sources/VTK/Rendering/vtkXRenderWindowInteractor.cxx:697
#39 0x00007fb68c204345 in XtDispatchEventToWidget () from /usr/lib/libXt.so.6
#40 0x00007fb68c204c70 in ?? () from /usr/lib/libXt.so.6
#41 0x00007fb68c203d1b in XtDispatchEvent () from /usr/lib/libXt.so.6
#42 0x00007fb68c6dcf12 in vtkXRenderWindowInteractor::Start
(this=0xf591c0) at
/home/wsales/Sources/VTK/Rendering/vtkXRenderWindowInteractor.cxx:276
#43 0x000000000076528e in AbstractVTKPageView::Enable (this=0xf564a0)
at /home/wsales/Sources/MarkII/src/AbstractVTKPageView.cpp:433
#44 0x000000000053372d in main (argc=1, argv=0x7fff9889c308) at
/home/wsales/Sources/MarkII/src/main.cpp:111
--- the is the thread two
#0 0x00007fb6895a3f2b in vtkLookupTableMapData<short> (self=0xfa18d0,
input=0x0, output=0x20749a0 "", length=1, inIncr=1, outFormat=4) at
/home/wsales/Sources/VTK/Common/vtkLookupTable.cxx:562
#1 0x00007fb689597cc4 in vtkLookupTable::MapScalarsThroughTable2
(this=0xfa18d0, input=0x0, output=0x20749a0 "", inputDataType=4,
numberOfValues=1, inputIncrement=1, outputFormat=4) at
/home/wsales/Sources/VTK/Common/vtkLookupTable.cxx:814
#2 0x00007fb68a1fe0fa in vtkImageMapToColorsExecute (self=0x10d1740,
inData=0x1ccf040, inPtr=0x0, outData=0xfb3990, outPtr=0x20749a0 "",
outExt=0x426a3fc0, id=1) at
/home/wsales/Sources/VTK/Imaging/vtkImageMapToColors.cxx:225
#3 0x00007fb68a1fe352 in vtkImageMapToColors::ThreadedRequestData
(this=0x10d1740, inData=0x2053ba0, outData=0x2053be0,
outExt=0x426a3fc0, id=1) at
/home/wsales/Sources/VTK/Imaging/vtkImageMapToColors.cxx:266
#4 0x00007fb689c56847 in vtkThreadedImageAlgorithmThreadedExecute
(arg=0x10d2478) at
/home/wsales/Sources/VTK/Filtering/vtkThreadedImageAlgorithm.cxx:203
#5 0x00007fb6869f83f7 in start_thread () from /lib/libpthread.so.0
#6 0x00007fb6801c2b2d in clone () from /lib/libc.so.6
#7 0x0000000000000000 in ?? ()
Can someone helps?
Regards,
Wagner Sales
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