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| 433 | |
| 434 | //------------------------------------------------------------------------------ |
| 435 | void vtkThreadedImageAlgorithm::PrepareImageData(vtkInformationVector** inputVector, |
| 436 | vtkInformationVector* outputVector, vtkImageData*** inDataObjects, vtkImageData** outDataObjects) |
| 437 | { |
| 438 | vtkImageData* firstInput = nullptr; |
| 439 | vtkImageData* firstOutput = nullptr; |
| 440 | |
| 441 | // now we must create the output array |
| 442 | int numOutputPorts = this->GetNumberOfOutputPorts(); |
| 443 | for (int i = 0; i < numOutputPorts; i++) |
| 444 | { |
| 445 | vtkInformation* info = outputVector->GetInformationObject(i); |
| 446 | vtkImageData* outData = vtkImageData::SafeDownCast(info->Get(vtkDataObject::DATA_OBJECT())); |
| 447 | if (i == 0) |
| 448 | { |
| 449 | firstOutput = outData; |
| 450 | } |
| 451 | if (outDataObjects) |
| 452 | { |
| 453 | outDataObjects[i] = outData; |
| 454 | } |
| 455 | if (outData) |
| 456 | { |
| 457 | int updateExtent[6]; |
| 458 | info->Get(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(), updateExtent); |
| 459 | |
| 460 | // unlike geometry filters, for image filters data is pre-allocated |
| 461 | // in the superclass (which means, in this class) |
| 462 | this->AllocateOutputData(outData, info, updateExtent); |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | // now create the inputs array |
| 467 | int numInputPorts = this->GetNumberOfInputPorts(); |
| 468 | for (int i = 0; i < numInputPorts; i++) |
| 469 | { |
| 470 | vtkInformationVector* portInfo = inputVector[i]; |
| 471 | int numConnections = portInfo->GetNumberOfInformationObjects(); |
| 472 | for (int j = 0; j < numConnections; j++) |
| 473 | { |
| 474 | vtkInformation* info = portInfo->GetInformationObject(j); |
| 475 | vtkImageData* inData = vtkImageData::SafeDownCast(info->Get(vtkDataObject::DATA_OBJECT())); |
| 476 | if (i == 0 && j == 0) |
| 477 | { |
| 478 | firstInput = inData; |
| 479 | } |
| 480 | if (inDataObjects && inDataObjects[i]) |
| 481 | { |
| 482 | inDataObjects[i][j] = inData; |
| 483 | } |
| 484 | } |
| 485 | } |
| 486 | |
| 487 | // copy other arrays |
| 488 | if (firstInput && firstOutput) |
| 489 | { |
| 490 | this->CopyAttributeData(firstInput, firstOutput, inputVector); |
| 491 | } |
| 492 | } |
no test coverage detected