2017-12-14 18:13:55 +00:00
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//=============================================================================
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//
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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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// Copyright 2015 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//
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//=============================================================================
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#include <vtkm/worklet/ScalarsToColors.h>
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#include <vtkm/BaseComponent.h>
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#include <vtkm/cont/ArrayHandleExtractComponent.h>
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#include <vtkm/cont/ArrayHandleTransform.h>
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#include <vtkm/worklet/DispatcherMapField.h>
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#include <vtkm/worklet/colorconversion/ConvertToRGB.h>
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#include <vtkm/worklet/colorconversion/ConvertToRGBA.h>
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#include <vtkm/worklet/colorconversion/Portals.h>
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#include <vtkm/worklet/colorconversion/ShiftScaleToRGB.h>
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#include <vtkm/worklet/colorconversion/ShiftScaleToRGBA.h>
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namespace vtkm
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{
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namespace worklet
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{
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namespace colorconversion
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{
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inline bool needShiftScale(vtkm::Float32, vtkm::Float32 shift, vtkm::Float32 scale)
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{
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return !((shift == -0.0f || shift == 0.0f) && (scale == 255.0f));
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}
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inline bool needShiftScale(vtkm::Float64, vtkm::Float32 shift, vtkm::Float32 scale)
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{
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return !((shift == -0.0f || shift == 0.0f) && (scale == 255.0f));
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}
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inline bool needShiftScale(vtkm::UInt8, vtkm::Float32 shift, vtkm::Float32 scale)
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{
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return !((shift == -0.0f || shift == 0.0f) && (scale == 1.0f));
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}
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template <typename T>
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inline bool needShiftScale(T, vtkm::Float32, vtkm::Float32)
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{
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return true;
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}
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}
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/// \brief Use each component to generate RGBA colors
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///
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template <typename T, typename S, typename Device>
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void ScalarsToColors::Run(const vtkm::cont::ArrayHandle<T, S>& values,
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vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::UInt8, 4>>& rgbaOut,
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Device) const
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{
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using namespace vtkm::worklet::colorconversion;
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//If our shift is 0 and our scale == 1 no need to apply them
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using BaseT = typename vtkm::BaseComponent<T>::Type;
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const bool shiftscale = needShiftScale(BaseT{}, this->Shift, this->Scale);
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if (shiftscale)
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{
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2018-08-28 20:36:50 +00:00
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vtkm::worklet::DispatcherMapField<ShiftScaleToRGBA> dispatcher(
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2017-12-14 18:13:55 +00:00
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ShiftScaleToRGBA(this->Shift, this->Scale, this->Alpha));
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2018-08-28 20:36:50 +00:00
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dispatcher.SetDevice(Device());
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2017-12-14 18:13:55 +00:00
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dispatcher.Invoke(values, rgbaOut);
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}
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else
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{
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2018-08-28 20:36:50 +00:00
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vtkm::worklet::DispatcherMapField<ConvertToRGBA> dispatcher(ConvertToRGBA(this->Alpha));
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dispatcher.SetDevice(Device());
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2017-12-14 18:13:55 +00:00
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dispatcher.Invoke(values, rgbaOut);
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}
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}
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/// \brief Use each component to generate RGB colors
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///
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template <typename T, typename S, typename Device>
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void ScalarsToColors::Run(const vtkm::cont::ArrayHandle<T, S>& values,
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vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::UInt8, 3>>& rgbOut,
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Device) const
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{
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using namespace vtkm::worklet::colorconversion;
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using BaseT = typename vtkm::BaseComponent<T>::Type;
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const bool shiftscale = needShiftScale(BaseT{}, this->Shift, this->Scale);
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if (shiftscale)
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{
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2018-08-28 20:36:50 +00:00
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vtkm::worklet::DispatcherMapField<ShiftScaleToRGB> dispatcher(
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2017-12-14 18:13:55 +00:00
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ShiftScaleToRGB(this->Shift, this->Scale));
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2018-08-28 20:36:50 +00:00
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dispatcher.SetDevice(Device());
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2017-12-14 18:13:55 +00:00
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dispatcher.Invoke(values, rgbOut);
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}
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else
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{
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2018-08-28 20:36:50 +00:00
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vtkm::worklet::DispatcherMapField<ConvertToRGB> dispatcher;
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dispatcher.SetDevice(Device());
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2017-12-14 18:13:55 +00:00
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dispatcher.Invoke(values, rgbOut);
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}
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}
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/// \brief Use magnitude of a vector to generate RGBA colors
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///
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template <typename T, int N, typename S, typename Device>
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void ScalarsToColors::RunMagnitude(const vtkm::cont::ArrayHandle<vtkm::Vec<T, N>, S>& values,
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vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::UInt8, 4>>& rgbaOut,
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Device) const
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{
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//magnitude is a complex situation. the default scale factor is incorrect
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//
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using namespace vtkm::worklet::colorconversion;
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//If our shift is 0 and our scale == 1 no need to apply them
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using BaseT = typename vtkm::BaseComponent<T>::Type;
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const bool shiftscale = needShiftScale(BaseT{}, this->Shift, this->Scale);
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if (shiftscale)
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{
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2018-08-28 20:36:50 +00:00
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vtkm::worklet::DispatcherMapField<ShiftScaleToRGBA> dispatcher(
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ShiftScaleToRGBA(this->Shift, this->Scale, this->Alpha));
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2018-08-28 20:36:50 +00:00
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dispatcher.SetDevice(Device());
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dispatcher.Invoke(
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vtkm::cont::make_ArrayHandleTransform(values, colorconversion::MagnitudePortal()), rgbaOut);
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}
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else
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{
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2018-08-28 20:36:50 +00:00
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vtkm::worklet::DispatcherMapField<ConvertToRGBA> dispatcher(ConvertToRGBA(this->Alpha));
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dispatcher.SetDevice(Device());
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dispatcher.Invoke(
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vtkm::cont::make_ArrayHandleTransform(values, colorconversion::MagnitudePortal()), rgbaOut);
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}
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}
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/// \brief Use magnitude of a vector to generate RGB colors
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///
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template <typename T, int N, typename S, typename Device>
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void ScalarsToColors::RunMagnitude(const vtkm::cont::ArrayHandle<vtkm::Vec<T, N>, S>& values,
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vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::UInt8, 3>>& rgbOut,
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Device) const
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{
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using namespace vtkm::worklet::colorconversion;
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using BaseT = typename vtkm::BaseComponent<T>::Type;
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const bool shiftscale = needShiftScale(BaseT{}, this->Shift, this->Scale);
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if (shiftscale)
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{
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2018-08-28 20:36:50 +00:00
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vtkm::worklet::DispatcherMapField<ShiftScaleToRGB> dispatcher(
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ShiftScaleToRGB(this->Shift, this->Scale));
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2018-08-28 20:36:50 +00:00
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dispatcher.SetDevice(Device());
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2017-12-14 18:13:55 +00:00
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dispatcher.Invoke(
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vtkm::cont::make_ArrayHandleTransform(values, colorconversion::MagnitudePortal()), rgbOut);
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}
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else
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{
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2018-08-28 20:36:50 +00:00
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vtkm::worklet::DispatcherMapField<ConvertToRGB> dispatcher;
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dispatcher.SetDevice(Device());
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2017-12-14 18:13:55 +00:00
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dispatcher.Invoke(
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vtkm::cont::make_ArrayHandleTransform(values, colorconversion::MagnitudePortal()), rgbOut);
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}
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}
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/// \brief Use a single component of a vector to generate RGBA colors
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///
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template <typename T, int N, typename S, typename Device>
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void ScalarsToColors::RunComponent(const vtkm::cont::ArrayHandle<vtkm::Vec<T, N>, S>& values,
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vtkm::IdComponent comp,
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vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::UInt8, 4>>& rgbaOut,
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Device device) const
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{
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this->Run(vtkm::cont::make_ArrayHandleTransform(values, colorconversion::ComponentPortal(comp)),
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rgbaOut,
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device);
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}
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/// \brief Use a single component of a vector to generate RGB colors
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///
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template <typename T, int N, typename S, typename Device>
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void ScalarsToColors::RunComponent(const vtkm::cont::ArrayHandle<vtkm::Vec<T, N>, S>& values,
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vtkm::IdComponent comp,
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vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::UInt8, 3>>& rgbOut,
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Device device) const
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{
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this->Run(vtkm::cont::make_ArrayHandleTransform(values, colorconversion::ComponentPortal(comp)),
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rgbOut,
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device);
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}
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}
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}
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