Add in primitive types to vtkm (Id, Scalar, Tuple).

This includes the configure scripts to setup if you want a 32bit or
64bit build.

vtkm/TypeTraits.h

+//============================================================================
+//  Copyright (c) Kitware, Inc.
+//  All rights reserved.
+//  See LICENSE.txt for details.
+//  This software is distributed WITHOUT ANY WARRANTY; without even
+//  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+//  PURPOSE.  See the above copyright notice for more information.
+//
+//  Copyright 2014 Sandia Corporation.
+//  Copyright 2014 UT-Battelle, LLC.
+//  Copyright 2014. Los Alamos National Security
+//
+//  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
+//  the U.S. Government retains certain rights in this software.
+//
+//  Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
+//  Laboratory (LANL), the U.S. Government retains certain rights in
+//  this software.
+//============================================================================
+#ifndef vtkm_TypeTraits_h
+#define vtkm_TypeTraits_h
+
+#include <vtkm/Types.h>
+
+namespace vtkm {
+
+/// Tag used to identify types that store real (floating-point) numbers. A
+/// TypeTraits class will typedef this class to NumericTag if it stores real
+/// numbers (or vectors of real numbers).
+///
+struct TypeTraitsRealTag {};
+
+/// Tag used to identify types that store integer numbers. A TypeTraits class
+/// will typedef this class to NumericTag if it stores integer numbers (or
+/// vectors of integers).
+///
+struct TypeTraitsIntegerTag {};
+
+/// Tag used to identify 0 dimensional types (scalars). Scalars can also be
+/// treated like vectors when used with VectorTraits. A TypeTraits class will
+/// typedef this class to DimensionalityTag.
+///
+struct TypeTraitsScalarTag {};
+
+/// Tag used to identify 1 dimensional types (vectors). A TypeTraits class will
+/// typedef this class to DimensionalityTag.
+///
+struct TypeTraitsVectorTag {};
+
+template<typename T> struct TypeTraits;
+
+#ifdef VTKM_DOXYGEN_ONLY
+
+/// The TypeTraits class provides helpful compile-time information about the
+/// basic types used in VTKm (and a few others for convienience). The majority
+/// of TypeTraits contents are typedefs to tags that can be used to easily
+/// override behavior of called functions.
+///
+template<typename T>
+class TypeTraits {
+  typedef int tag_type; // Shut up, test compile.
+public:
+
+  /// \brief A tag to determing whether the type is integer or real.
+  ///
+  /// This tag is either TypeTraitsRealTag or TypeTraitsIntegerTag.
+  typedef tag_type NumericTag;
+
+  /// \brief A tag to determine whether the type has multiple components.
+  ///
+  /// This tag is either TypeTraitsScalarTag or TypeTraitsVectorTag. Scalars can
+  /// also be treated as vectors.
+  typedef tag_type DimensionalityTag;
+};
+
+#endif //VTKM_DOXYGEN_ONLY
+
+// Const types should have the same traits as their non-const counterparts.
+//
+template<typename T>
+struct TypeTraits<const T> : TypeTraits<T>
+{  };
+
+#define VTKM_BASIC_REAL_TYPE(T) \
+template<> struct TypeTraits<T> { \
+  typedef TypeTraitsRealTag NumericTag; \
+  typedef TypeTraitsScalarTag DimensionalityTag; \
+}
+
+#define VTKM_BASIC_INTEGER_TYPE(T) \
+template<> struct TypeTraits<T> { \
+  typedef TypeTraitsIntegerTag NumericTag; \
+  typedef TypeTraitsScalarTag DimensionalityTag; \
+}
+
+/// Traits for basic C++ types.
+///
+
+VTKM_BASIC_REAL_TYPE(float);
+VTKM_BASIC_REAL_TYPE(double);
+VTKM_BASIC_INTEGER_TYPE(char);
+VTKM_BASIC_INTEGER_TYPE(unsigned char);
+VTKM_BASIC_INTEGER_TYPE(short);
+VTKM_BASIC_INTEGER_TYPE(unsigned short);
+VTKM_BASIC_INTEGER_TYPE(int);
+VTKM_BASIC_INTEGER_TYPE(unsigned int);
+#if VTKM_SIZE_LONG == 8
+VTKM_BASIC_INTEGER_TYPE(long);
+VTKM_BASIC_INTEGER_TYPE(unsigned long);
+#elif VTKM_SIZE_LONG_LONG == 8
+VTKM_BASIC_INTEGER_TYPE(long long);
+VTKM_BASIC_INTEGER_TYPE(unsigned long long);
+#else
+#error No implementation for 64-bit integer traits.
+#endif
+
+#undef VTKM_BASIC_REAL_TYPE
+#undef VTKM_BASIC_INTEGER_TYPE
+
+#define VTKM_VECTOR_TYPE(T, NTag) \
+template<> struct TypeTraits<T> { \
+  typedef NTag NumericTag; \
+  typedef TypeTraitsVectorTag DimensionalityTag; \
+}
+
+/// Traits for vector types.
+///
+
+VTKM_VECTOR_TYPE(vtkm::Id3, TypeTraitsIntegerTag);
+VTKM_VECTOR_TYPE(vtkm::Vector2, TypeTraitsRealTag);
+VTKM_VECTOR_TYPE(vtkm::Vector3, TypeTraitsRealTag);
+VTKM_VECTOR_TYPE(vtkm::Vector4, TypeTraitsRealTag);
+
+#undef VTKM_VECTOR_TYPE
+
+/// Traits for tuples.
+///
+template<typename T, int Size> struct TypeTraits<vtkm::Tuple<T, Size> > {
+  typedef typename TypeTraits<T>::NumericTag NumericTag;
+  typedef TypeTraitsVectorTag DimensionalityTag;
+};
+
+} // namespace vtkm
+
+#endif //vtkm_TypeTraits_h

vtkm/Types.h

+//============================================================================
+//  Copyright (c) Kitware, Inc.
+//  All rights reserved.
+//  See LICENSE.txt for details.
+//  This software is distributed WITHOUT ANY WARRANTY; without even
+//  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+//  PURPOSE.  See the above copyright notice for more information.
+//
+//  Copyright 2014 Sandia Corporation.
+//  Copyright 2014 UT-Battelle, LLC.
+//  Copyright 2014. Los Alamos National Security
+//
+//  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
+//  the U.S. Government retains certain rights in this software.
+//
+//  Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
+//  Laboratory (LANL), the U.S. Government retains certain rights in
+//  this software.
+//============================================================================
+#ifndef vtkm_Types_h
+#define vtkm_Types_h
+
+#include <vtkm/internal/Configure.h>
+#include <vtkm/internal/ExportMacros.h>
+
+/*!
+ * \namespace vtkm
+ * \brief VTKm Toolkit.
+ *
+ * vtkm is the namespace for the VTKm Toolkit. It contains other sub namespaces,
+ * as well as basic data types and functions callable from all components in VTKm
+ * toolkit.
+ *
+ * \namespace vtkm::cont
+ * \brief VTKm Control Environment.
+ *
+ * vtkm::cont defines the publicly accessible API for the VTKm Control
+ * Environment. Users of the VTKm Toolkit can use this namespace to access the
+ * Control Environment.
+ *
+ * \namespace vtkm::cuda
+ * \brief CUDA implementation.
+ *
+ * vtkm::cuda includes the code to implement the VTKm for CUDA-based platforms.
+ *
+ * \namespace vtkm::cuda::cont
+ * \brief CUDA implementation for Control Environment.
+ *
+ * vtkm::cuda::cont includes the code to implement the VTKm Control Environment
+ * for CUDA-based platforms.
+ *
+ * \namespace vtkm::cuda::exec
+ * \brief CUDA implementation for Execution Environment.
+ *
+ * vtkm::cuda::exec includes the code to implement the VTKm Execution Environment
+ * for CUDA-based platforms.
+ *
+ * \namespace vtkm::exec
+ * \brief VTKm Execution Environment.
+ *
+ * vtkm::exec defines the publicly accessible API for the VTKm Execution
+ * Environment. Worklets typically use classes/apis defined within this
+ * namespace alone.
+ *
+ * \namespace vtkm::internal
+ * \brief VTKm Internal Environment
+ *
+ * vtkm::internal defines API which is internal and subject to frequent
+ * change. This should not be used for projects using VTKm. Instead it servers
+ * are a reference for the developers of VTKm.
+ *
+ * \namespace vtkm::math
+ * \brief Utility math functions
+ *
+ * vtkm::math defines the publicly accessible API for Utility Math functions.
+ *
+ * \namespace vtkm::testing
+ * \brief Internal testing classes
+ *
+ */
+
+namespace vtkm
+{
+//*****************************************************************************
+// Typedefs for basic types.
+//*****************************************************************************
+
+/// Alignment requirements are prescribed by CUDA on device (Table B-1 in NVIDIA
+/// CUDA C Programming Guide 4.0)
+
+namespace internal {
+
+#if VTKM_SIZE_INT == 4
+typedef int Int32Type;
+typedef unsigned int UInt32Type;
+#else
+#error Could not find a 32-bit integer.
+#endif
+
+#if VTKM_SIZE_LONG == 8
+typedef long Int64Type;
+typedef unsigned long UInt64Type;
+#elif VTKM_SIZE_LONG_LONG == 8
+typedef long long Int64Type;
+typedef unsigned long long UInt64Type;
+#else
+#error Could not find a 64-bit integer.
+#endif
+
+//-----------------------------------------------------------------------------
+
+template<int Size>
+struct equals
+{
+  template<typename T>
+  VTKM_EXEC_CONT_EXPORT bool operator()(const T& a, const T& b) const
+  {
+    return equals<Size-1>()(a,b) && a[Size-1] == b[Size-1];
+  }
+};
+
+template<>
+struct equals<1>
+{
+  template<typename T>
+  VTKM_EXEC_CONT_EXPORT bool operator()(const T& a, const T& b) const
+  {
+    return a[0] == b[0];
+  }
+};
+
+template<>
+struct equals<2>
+{
+  template<typename T>
+  VTKM_EXEC_CONT_EXPORT bool operator()(const T& a, const T& b) const
+  {
+    return a[0] == b[0] && a[1] == b[1];
+  }
+};
+
+template<>
+struct equals<3>
+{
+  template<typename T>
+  VTKM_EXEC_CONT_EXPORT bool operator()(const T& a, const T& b) const
+  {
+    return a[0] == b[0] && a[1] == b[1] && a[2] == b[2];
+  }
+};
+
+template<int Size>
+struct assign_scalar_to_vector
+{
+  template<typename VectorType, typename ComponentType>
+  VTKM_EXEC_CONT_EXPORT
+  void operator()(VectorType &dest, const ComponentType &src)
+  {
+    assign_scalar_to_vector<Size-1>()(dest, src);
+    dest[Size-1] = src;
+  }
+};
+
+template<>
+struct assign_scalar_to_vector<1>
+{
+  template<typename VectorType, typename ComponentType>
+  VTKM_EXEC_CONT_EXPORT
+  void operator()(VectorType &dest, const ComponentType &src)
+  {
+    dest[0] = src;
+  }
+};
+
+template<>
+struct assign_scalar_to_vector<2>
+{
+  template<typename VectorType, typename ComponentType>
+  VTKM_EXEC_CONT_EXPORT
+  void operator()(VectorType &dest, const ComponentType &src)
+  {
+    dest[0] = src; dest[1] = src;
+  }
+};
+
+template<>
+struct assign_scalar_to_vector<3>
+{
+  template<typename VectorType, typename ComponentType>
+  VTKM_EXEC_CONT_EXPORT
+  void operator()(VectorType &dest, const ComponentType &src)
+  {
+    dest[0] = src; dest[1] = src; dest[2] = src;
+  }
+};
+
+template<int Size>
+struct copy_vector
+{
+  template<typename T1, typename T2>
+  VTKM_EXEC_CONT_EXPORT void operator()(T1 &dest, const T2 &src)
+  {
+    copy_vector<Size-1>()(dest, src);
+    dest[Size-1] = src[Size-1];
+  }
+};
+
+template<>
+struct copy_vector<1>
+{
+  template<typename T1, typename T2>
+  VTKM_EXEC_CONT_EXPORT void operator()(T1 &dest, const T2 &src)
+  {
+    dest[0] = src[0];
+  }
+};
+
+template<>
+struct copy_vector<2>
+{
+  template<typename T1, typename T2>
+  VTKM_EXEC_CONT_EXPORT void operator()(T1 &dest, const T2 &src)
+  {
+    dest[0] = src[0]; dest[1] = src[1];
+  }
+};
+
+template<>
+struct copy_vector<3>
+{
+  template<typename T1, typename T2>
+  VTKM_EXEC_CONT_EXPORT void operator()(T1 &dest, const T2 &src)
+  {
+    dest[0] = src[0]; dest[1] = src[1]; dest[2] = src[2];
+  }
+};
+
+
+} // namespace internal
+
+//-----------------------------------------------------------------------------
+
+#if VTKM_SIZE_ID == 4
+
+/// Represents an ID.
+typedef internal::Int32Type Id __attribute__ ((aligned(VTKM_SIZE_ID)));
+
+#elif VTKM_SIZE_ID == 8
+
+/// Represents an ID.
+typedef internal::Int64Type Id __attribute__ ((aligned(VTKM_SIZE_ID)));
+
+#else
+#error Unknown Id Size
+#endif
+
+#ifdef VTKM_USE_DOUBLE_PRECISION
+
+/// Scalar corresponds to a floating point number.
+typedef double Scalar __attribute__ ((aligned(VTKM_SIZE_SCALAR)));
+
+#else //VTKM_USE_DOUBLE_PRECISION
+
+/// Scalar corresponds to a floating point number.
+typedef float Scalar __attribute__ ((aligned(VTKM_SIZE_SCALAR)));
+
+#endif //VTKM_USE_DOUBLE_PRECISION
+
+//-----------------------------------------------------------------------------
+
+/// Tuple corresponds to a Size-tuple of type T
+template<typename T, int Size>
+class Tuple {
+public:
+  typedef T ComponentType;
+  static const int NUM_COMPONENTS=Size;
+
+  VTKM_EXEC_CONT_EXPORT Tuple(){}
+  VTKM_EXEC_CONT_EXPORT explicit Tuple(const ComponentType& value)
+    {
+    for(int i=0; i < NUM_COMPONENTS;++i)
+      {
+      this->Components[i]=value;
+      }
+    }
+  VTKM_EXEC_CONT_EXPORT explicit Tuple(const ComponentType* values)
+    {
+    for(int i=0; i < NUM_COMPONENTS;++i)
+      {
+      this->Components[i]=values[i];
+      }
+    }
+  VTKM_EXEC_CONT_EXPORT
+  Tuple(const Tuple<ComponentType, Size> &src)
+  {
+    for (int i = 0; i < NUM_COMPONENTS; i++)
+      {
+      this->Components[i] = src[i];
+      }
+  }
+
+  VTKM_EXEC_CONT_EXPORT
+  Tuple<ComponentType, Size> &operator=(const Tuple<ComponentType, Size> &src)
+  {
+    for (int i = 0; i < NUM_COMPONENTS; i++)
+      {
+      this->Components[i] = src[i];
+      }
+    return *this;
+  }
+
+  VTKM_EXEC_CONT_EXPORT const ComponentType &operator[](int idx) const {
+    return this->Components[idx];
+  }
+  VTKM_EXEC_CONT_EXPORT ComponentType &operator[](int idx) {
+    return this->Components[idx];
+  }
+
+  VTKM_EXEC_CONT_EXPORT
+  bool operator==(const Tuple<T,NUM_COMPONENTS> &other) const
+  {
+    bool same = true;
+    for (int componentIndex=0; componentIndex<NUM_COMPONENTS; componentIndex++)
+      {
+      same &= (this->Components[componentIndex] == other[componentIndex]);
+      }
+    return same;
+  }
+
+  VTKM_EXEC_CONT_EXPORT
+  bool operator<(const Tuple<T,NUM_COMPONENTS> &other) const
+  {
+    for(vtkm::Id i=0; i < NUM_COMPONENTS; ++i)
+      {
+      //ignore equals as that represents check next value
+      if(this->Components[i] < other[i])
+        return true;
+      else if(other[i] < this->Components[i])
+        return false;
+      } //if all same we are not less
+      return false;
+  }
+
+  VTKM_EXEC_CONT_EXPORT
+  bool operator!=(const Tuple<T,NUM_COMPONENTS> &other) const
+  {
+    return !(this->operator==(other));
+  }
+
+protected:
+  ComponentType Components[NUM_COMPONENTS];
+};
+
+//-----------------------------------------------------------------------------
+// Specializations for common tuple sizes (with special names).
+
+template<typename T>
+class Tuple<T,2>{
+public:
+  typedef T ComponentType;
+  static const int NUM_COMPONENTS = 2;
+
+  VTKM_EXEC_CONT_EXPORT Tuple(){}
+  VTKM_EXEC_CONT_EXPORT explicit Tuple(const ComponentType& value)
+  {
+    internal::assign_scalar_to_vector<NUM_COMPONENTS>()(this->Components,value);
+  }
+  VTKM_EXEC_CONT_EXPORT explicit Tuple(const ComponentType* values)
+  {
+    internal::copy_vector<NUM_COMPONENTS>()(this->Components, values);
+  }
+  VTKM_EXEC_CONT_EXPORT Tuple(ComponentType x, ComponentType y) {
+    this->Components[0] = x;
+    this->Components[1] = y;
+  }
+  VTKM_EXEC_CONT_EXPORT
+  Tuple(const Tuple<ComponentType, NUM_COMPONENTS> &src)
+  {
+    internal::copy_vector<NUM_COMPONENTS>()(this->Components, src.Components);
+  }
+
+  VTKM_EXEC_CONT_EXPORT
+  Tuple<ComponentType, NUM_COMPONENTS> &
+  operator=(const Tuple<ComponentType, NUM_COMPONENTS> &src)
+  {
+    internal::copy_vector<NUM_COMPONENTS>()(this->Components, src.Components);
+    return *this;
+  }
+
+  VTKM_EXEC_CONT_EXPORT const ComponentType &operator[](int idx) const {
+    return this->Components[idx];
+  }
+  VTKM_EXEC_CONT_EXPORT ComponentType &operator[](int idx) {
+    return this->Components[idx];
+  }
+
+  VTKM_EXEC_CONT_EXPORT
+  bool operator==(const Tuple<T,NUM_COMPONENTS> &other) const
+  {
+    return internal::equals<NUM_COMPONENTS>()(*this, other);
+  }
+  VTKM_EXEC_CONT_EXPORT
+  bool operator!=(const Tuple<T,NUM_COMPONENTS> &other) const
+  {
+    return !(this->operator==(other));
+  }
+
+  VTKM_EXEC_CONT_EXPORT
+  bool operator<(const Tuple<T,NUM_COMPONENTS> &other) const
+  {
+  return( (this->Components[0] < other[0])  ||
+         (!(other[0] < this->Components[0]) && (this->Components[1] < other[1]))
+        );
+  }
+
+protected:
+  ComponentType Components[NUM_COMPONENTS];
+};
+
+/// Vector2 corresponds to a 2-tuple
+typedef vtkm::Tuple<vtkm::Scalar,2>
+    Vector2 __attribute__ ((aligned(VTKM_ALIGNMENT_TWO_SCALAR)));
+
+
+/// Id2 corresponds to a 2-dimensional index
+typedef vtkm::Tuple<vtkm::Id,2> Id2 __attribute__ ((aligned(VTKM_SIZE_ID)));
+
+template<typename T>
+class Tuple<T,3>{
+public:
+  typedef T ComponentType;
+  static const int NUM_COMPONENTS = 3;
+
+  VTKM_EXEC_CONT_EXPORT Tuple(){}
+  VTKM_EXEC_CONT_EXPORT explicit Tuple(const ComponentType& value)
+  {
+    internal::assign_scalar_to_vector<NUM_COMPONENTS>()(this->Components,value);
+  }
+  VTKM_EXEC_CONT_EXPORT explicit Tuple(const ComponentType* values)
+  {
+    internal::copy_vector<NUM_COMPONENTS>()(this->Components, values);
+  }
+  VTKM_EXEC_CONT_EXPORT
+  Tuple(ComponentType x, ComponentType y, ComponentType z) {
+    this->Components[0] = x;
+    this->Components[1] = y;
+    this->Components[2] = z;
+  }
+  VTKM_EXEC_CONT_EXPORT
+  Tuple(const Tuple<ComponentType, NUM_COMPONENTS> &src)
+  {
+    internal::copy_vector<NUM_COMPONENTS>()(this->Components, src.Components);
+  }
+
+  VTKM_EXEC_CONT_EXPORT
+  Tuple<ComponentType, NUM_COMPONENTS> &
+  operator=(const Tuple<ComponentType, NUM_COMPONENTS> &src)
+  {
+    internal::copy_vector<NUM_COMPONENTS>()(this->Components, src.Components);
+    return *this;
+  }
+
+  VTKM_EXEC_CONT_EXPORT const ComponentType &operator[](int idx) const {
+    return this->Components[idx];
+  }
+  VTKM_EXEC_CONT_EXPORT ComponentType &operator[](int idx) {
+    return this->Components[idx];
+  }
+
+  VTKM_EXEC_CONT_EXPORT
+  bool operator==(const Tuple<T,NUM_COMPONENTS> &other) const
+  {
+    return internal::equals<NUM_COMPONENTS>()(*this, other);
+  }
+  VTKM_EXEC_CONT_EXPORT
+  bool operator!=(const Tuple<T,NUM_COMPONENTS> &other) const
+  {
+    return !(this->operator==(other));
+  }
+
+  VTKM_EXEC_CONT_EXPORT
+  bool operator<(const Tuple<T,NUM_COMPONENTS> &other) const
+  {
+  return((this->Components[0] < other[0])    ||
+         ( !(other[0] < this->Components[0]) &&
+          (this->Components[1] < other[1]))  ||
+         ( !(other[0] < this->Components[0]) &&
+           !(other[1] < this->Components[