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#include "vtkNew.h"
#include "vtkPNGReader.h"
#include "vtkPVDataEncoder.h"
#include "vtkTestUtilities.h"
#include "vtkSmartPointer.h"
#include "vtkImageData.h"
#include <vtksys/SystemTools.hxx>
#include <string>
#include <vector>
// returns 0 on success.
int TestDataEncoder(int argc, char* argv[])
{
char* dataroot = vtkTestUtilities::GetDataRoot(argc, argv);
if (!dataroot)
{
vtkGenericWarningMacro("Missing Data Root!");
return 1;
}
// Open image files from the PARAVIEW_DATA_ROOT/Baseline and try to
// encode/compress them and then verify that they are indeed the same.
const char* filenames[] = {
"/Baseline/Clip.png",
"/Baseline/Contour.png",
"/Baseline/ContourRange.png",
"/Baseline/EnSight.png",
"/Baseline/ExtractBlock.png",
"/Baseline/ExtractGrid.png",
NULL
};
std::vector<vtkSmartPointer<vtkImageData> > images;
for (int cc=0; filenames[cc] != NULL; cc++)
{
vtkNew<vtkPNGReader> reader;
std::string filename(dataroot);
filename += filenames[cc];
reader->SetFileName(filename.c_str());
reader->Update();
images.push_back(reader->GetOutput());
}
int errors = 0;
vtkNew<vtkPVDataEncoder> encoder;
for (size_t cc=0; cc < images.size(); cc++)
{
vtkImageData* img = images[cc].GetPointer();
img->Register(NULL);
images[cc] = NULL;
encoder->PushAndTakeReference(cc % 3, img, 100);
vtksys::SystemTools::Delay(10); // 0.2s
}
vtkSmartPointer<vtkUnsignedCharArray> data;
encoder->GetLatestOutput(0, data);
encoder->GetLatestOutput(1, data);
encoder->GetLatestOutput(2, data);
encoder->GetLatestOutput(3, data);
encoder->Flush(0);
delete [] dataroot;
return errors;
}
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