To help provide a better time writing VTK-m filter this streamlines
the CreateResult API to provide a focused set of methods, based on
how CreateResult has been used by existing filters.
Now that the dispatcher does its own TryExecute, filters do not need to
do that. This change requires all worklets called by filters to be able
to execute without knowing the device a priori.
Rather than force all dispatchers to be templated on a device adapter,
instead use a TryExecute internally within the invoke to select a device
adapter.
Because this removes the need to declare a device when invoking a
worklet, this commit also removes the need to declare a device in
several other areas of the code.
This commit removes `vtkm::filter::Result`. All methods that used
`vtkm::filter::Result` simply change to use `vtkm::cont::Dataset` instead.
The utility API on `Result` that was used to add fields to the resulting
dataset is now available via `vtkm::filter::internal::CreateResult`.
Sandia National Laboratories recently changed management from the
Sandia Corporation to the National Technology & Engineering Solutions
of Sandia, LLC (NTESS). The copyright statements need to be updated
accordingly.
Change the VTKM_CONT_EXPORT to VTKM_CONT. (Likewise for EXEC and
EXEC_CONT.) Remove the inline from these macros so that they can be
applied to everything, including implementations in a library.
Because inline is not declared in these modifies, you have to add the
keyword to functions and methods where the implementation is not inlined
in the class.
If the user does not specify a name for the output field in a filter, that
filter should provide some default name. Having blank names for fields is
not a great idea. (In fact, an earlier commit added an assert to make
sure that a ResultField is given a non-empty name.)
This covers issue #61.
VTK-m style guidelines dictate that all classes part of the API should
be in their own header file. Thus, we have moved the result classes out
of the filter header files and into their own headers.
We have also renamed these clases to ResultField and ResultDataSet to
better match the class naming conventions of VTK-m.
Since we are moving around these result classes, we have also revamped
their structure. They are now in a hierarchy with a common ResultBase
class. Additionally, all result classes have a reference to a complete
DataSet that can be considered the output of the filter. This will make
it easier for users to consistently deal with filter results.
These changes cover issues #60 and #62.