mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-10-06 02:18:58 +00:00
05bf2e4518
This header file contained tests for a bunch of fancy array handles so that they could be compiled for each device. These tests were bunched together because they were replicated for each device implementation, which was a hassle. However, having a bunch of tests crammed together is problematic for a number of reasons. The new testing no longer has a need to make a separate test for each device. Thus, the tests for the individual devices are removed, and the tests are split up and added to the basic vtkm_cont tests. In some cases, individual tests already existed there as well (probably because the developer did not see the test).
231 lines
7.4 KiB
C++
231 lines
7.4 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#include <vtkm/cont/ArrayHandleTransform.h>
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#include <vtkm/VecTraits.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/cont/ArrayHandleCounting.h>
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#include <vtkm/cont/Invoker.h>
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#include <vtkm/worklet/WorkletMapField.h>
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#include <vtkm/cont/testing/Testing.h>
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namespace
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{
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const vtkm::Id ARRAY_SIZE = 10;
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struct MySquare
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{
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template <typename U>
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VTKM_EXEC auto operator()(U u) const -> decltype(vtkm::Dot(u, u))
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{
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return vtkm::Dot(u, u);
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}
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};
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struct CheckTransformWorklet : vtkm::worklet::WorkletMapField
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{
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using ControlSignature = void(FieldIn original, FieldIn transformed);
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template <typename T, typename U>
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VTKM_EXEC void operator()(const T& original, const U& transformed) const
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{
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if (!test_equal(transformed, MySquare{}(original)))
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{
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this->RaiseError("Encountered bad transformed value.");
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}
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}
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};
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template <typename OriginalArrayHandleType, typename TransformedArrayHandleType>
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VTKM_CONT void CheckControlPortals(const OriginalArrayHandleType& originalArray,
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const TransformedArrayHandleType& transformedArray)
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{
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std::cout << " Verify that the control portal works" << std::endl;
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using OriginalPortalType = typename OriginalArrayHandleType::ReadPortalType;
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using TransformedPortalType = typename TransformedArrayHandleType::ReadPortalType;
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VTKM_TEST_ASSERT(originalArray.GetNumberOfValues() == transformedArray.GetNumberOfValues(),
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"Number of values in transformed array incorrect.");
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OriginalPortalType originalPortal = originalArray.ReadPortal();
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TransformedPortalType transformedPortal = transformedArray.ReadPortal();
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VTKM_TEST_ASSERT(originalPortal.GetNumberOfValues() == transformedPortal.GetNumberOfValues(),
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"Number of values in transformed portal incorrect.");
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for (vtkm::Id index = 0; index < originalArray.GetNumberOfValues(); index++)
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{
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using T = typename TransformedPortalType::ValueType;
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typename OriginalPortalType::ValueType original = originalPortal.Get(index);
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T transformed = transformedPortal.Get(index);
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VTKM_TEST_ASSERT(test_equal(transformed, MySquare{}(original)), "Bad transform value.");
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}
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}
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struct ValueScale
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{
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ValueScale()
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: Factor(1.0)
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{
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}
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ValueScale(vtkm::Float64 factor)
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: Factor(factor)
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{
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}
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template <typename ValueType>
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VTKM_EXEC_CONT ValueType operator()(const ValueType& v) const
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{
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using Traits = vtkm::VecTraits<ValueType>;
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using TTraits = vtkm::TypeTraits<ValueType>;
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using ComponentType = typename Traits::ComponentType;
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ValueType result = TTraits::ZeroInitialization();
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for (vtkm::IdComponent i = 0; i < Traits::GetNumberOfComponents(v); ++i)
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{
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vtkm::Float64 vi = static_cast<vtkm::Float64>(Traits::GetComponent(v, i));
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vtkm::Float64 ri = vi * this->Factor;
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Traits::SetComponent(result, i, static_cast<ComponentType>(ri));
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}
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return result;
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}
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private:
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vtkm::Float64 Factor;
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};
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struct PassThrough : public vtkm::worklet::WorkletMapField
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{
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using ControlSignature = void(FieldIn, FieldOut);
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using ExecutionSignature = void(_1, _2);
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template <typename InValue, typename OutValue>
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VTKM_EXEC void operator()(const InValue& inValue, OutValue& outValue) const
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{
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outValue = inValue;
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}
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};
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template <typename InputValueType>
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struct TransformTests
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{
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using OutputValueType = typename vtkm::VecTraits<InputValueType>::ComponentType;
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using TransformHandle =
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vtkm::cont::ArrayHandleTransform<vtkm::cont::ArrayHandle<InputValueType>, MySquare>;
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using CountingTransformHandle =
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vtkm::cont::ArrayHandleTransform<vtkm::cont::ArrayHandleCounting<InputValueType>, MySquare>;
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using Device = vtkm::cont::DeviceAdapterTagSerial;
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using Algorithm = vtkm::cont::DeviceAdapterAlgorithm<Device>;
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void operator()() const
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{
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MySquare functor;
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vtkm::cont::Invoker invoke;
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std::cout << "Test a transform handle with a counting handle as the values" << std::endl;
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vtkm::cont::ArrayHandleCounting<InputValueType> counting = vtkm::cont::make_ArrayHandleCounting(
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InputValueType(OutputValueType(0)), InputValueType(1), ARRAY_SIZE);
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CountingTransformHandle countingTransformed =
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vtkm::cont::make_ArrayHandleTransform(counting, functor);
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CheckControlPortals(counting, countingTransformed);
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std::cout << " Verify that the execution portal works" << std::endl;
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invoke(CheckTransformWorklet{}, counting, countingTransformed);
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std::cout << "Test a transform handle with a normal handle as the values" << std::endl;
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//we are going to connect the two handles up, and than fill
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//the values and make sure the transform sees the new values in the handle
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vtkm::cont::ArrayHandle<InputValueType> input;
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TransformHandle thandle(input, functor);
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using Portal = typename vtkm::cont::ArrayHandle<InputValueType>::WritePortalType;
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input.Allocate(ARRAY_SIZE);
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SetPortal(input.WritePortal());
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CheckControlPortals(input, thandle);
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std::cout << " Verify that the execution portal works" << std::endl;
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invoke(CheckTransformWorklet{}, input, thandle);
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std::cout << "Modify array handle values to ensure transform gets updated" << std::endl;
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{
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Portal portal = input.WritePortal();
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for (vtkm::Id index = 0; index < ARRAY_SIZE; ++index)
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{
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portal.Set(index, TestValue(index * index, InputValueType()));
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}
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}
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CheckControlPortals(input, thandle);
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std::cout << " Verify that the execution portal works" << std::endl;
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invoke(CheckTransformWorklet{}, input, thandle);
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std::cout << "Write to a transformed array with an inverse transform" << std::endl;
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{
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ValueScale scaleUp(2.0);
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ValueScale scaleDown(1.0 / 2.0);
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input.Allocate(ARRAY_SIZE);
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SetPortal(input.WritePortal());
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vtkm::cont::ArrayHandle<InputValueType> output;
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auto transformed = vtkm::cont::make_ArrayHandleTransform(output, scaleUp, scaleDown);
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invoke(PassThrough{}, input, transformed);
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//verify that the control portal works
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auto outputPortal = output.ReadPortal();
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auto transformedPortal = transformed.ReadPortal();
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for (vtkm::Id i = 0; i < ARRAY_SIZE; ++i)
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{
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const InputValueType result_v = outputPortal.Get(i);
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const InputValueType correct_value = scaleDown(TestValue(i, InputValueType()));
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const InputValueType control_value = transformedPortal.Get(i);
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VTKM_TEST_ASSERT(test_equal(result_v, correct_value), "Transform Handle Failed");
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VTKM_TEST_ASSERT(test_equal(scaleUp(result_v), control_value),
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"Transform Handle Control Failed");
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}
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}
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}
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};
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struct TryInputType
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{
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template <typename InputType>
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void operator()(InputType) const
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{
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TransformTests<InputType>()();
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}
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};
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void TestArrayHandleTransform()
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{
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vtkm::testing::Testing::TryTypes(TryInputType());
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}
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} // anonymous namespace
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int UnitTestArrayHandleTransform(int argc, char* argv[])
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{
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return vtkm::cont::testing::Testing::Run(TestArrayHandleTransform, argc, argv);
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}
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