// get a pixel copy function that is appropriate for the data type
static void vtkGetSetPixelsFunc(mitkVtkImageOverwrite *self,
void (**setpixels)(void *&out, const void *in,
int numscalars, int n))
{
int dataType = self->GetOutput()->GetScalarType();
int numscalars = self->GetOutput()->GetNumberOfScalarComponents();
switch (numscalars)
{
case 1:
switch (dataType)
{
vtkTemplateAliasMacro(
*setpixels = &vtkImageResliceSetPixels<VTK_TT>::Set1
);
default:
setpixels = nullptr;
}
default:
switch (dataType)
{
vtkTemplateAliasMacro(
*setpixels = &vtkImageResliceSetPixels<VTK_TT>::Set
);
default:
setpixels = nullptr;
}
}
}
static void vtkGetResliceInterpFunc(mitkVtkImageOverwrite *self,
int (**interpolate)(void *&outPtr,
const void *inPtr,
const int inExt[6],
const vtkIdType inInc[3],
int numscalars,
const F point[3],
int mode,
const void *background,
mitkVtkImageOverwrite *self))
{
int dataType = self->GetOutput()->GetScalarType();
switch (dataType)
{
vtkTemplateAliasMacro(*((int (**)(VTK_TT *&outPtr, const VTK_TT *inPtr,
const int inExt[6],
const vtkIdType inInc[3],
int numscalars, const F point[3],
int mode,
const VTK_TT *background,
mitkVtkImageOverwrite *self))interpolate) = \
&vtkNearestNeighborInterpolation);
default:
interpolate = nullptr;
}
}
static void vtkFreeBackgroundPixel(mitkVtkImageOverwrite *self, void **rval)
{
switch (self->GetOutput()->GetScalarType())
{
vtkTemplateAliasMacro(delete [] *((VTK_TT **)rval));
}
*rval = nullptr;
}
static void vtkAllocBackgroundPixel(mitkVtkImageOverwrite *self, void **rval,
int numComponents)
{
switch (self->GetOutput()->GetScalarType())
{
vtkTemplateAliasMacro(vtkAllocBackgroundPixelT(self, (VTK_TT **)rval,
numComponents));
}
}
int
DetermineSubdivisions(vtkDataArray *arr, vtkIdType id[4], int max,
double threshold)
{
int numSubdivs = 0;
switch(arr->GetDataType())
{
vtkTemplateAliasMacro(numSubdivs = DetermineSubdivisions(id, max, threshold,
static_cast<VTK_TT *>(arr->GetVoidPointer(0))));
}
return numSubdivs;
}
