Initial release

deps_src/clipper2/Clipper2Lib/include/clipper2/clipper.export.h

@@ -0,0 +1,836 @@
+/*******************************************************************************
+* Author    :  Angus Johnson                                                   *
+* Date      :  24 January 2025                                                 *
+* Website   :  https://www.angusj.com                                          *
+* Copyright :  Angus Johnson 2010-2025                                         *
+* Purpose   :  This module exports the Clipper2 Library (ie DLL/so)            *
+* License   :  https://www.boost.org/LICENSE_1_0.txt                           *
+*******************************************************************************/
+
+
+/*
+ Boolean clipping:
+ cliptype: NoClip=0, Intersection=1, Union=2, Difference=3, Xor=4
+ fillrule: EvenOdd=0, NonZero=1, Positive=2, Negative=3
+
+ Polygon offsetting (inflate/deflate):
+ jointype: Square=0, Bevel=1, Round=2, Miter=3
+ endtype: Polygon=0, Joined=1, Butt=2, Square=3, Round=4
+
+The path structures used extensively in other parts of this library are all
+based on std::vector classes. Since C++ classes can't be accessed by other
+languages, these paths are exported here as very simple array structures
+(either of int64_t or double) that can be parsed by just about any
+programming language.
+
+These 2D paths are defined by series of x and y coordinates together with an
+optional user-defined 'z' value (see Z-values below). Hence, a vertex refers
+to a single x and y coordinate (+/- a user-defined value). Data structures
+have names with suffixes that indicate the array type (either int64_t or
+double). For example, the data structure CPath64 contains an array of int64_t
+values, whereas the data structure CPathD contains an array of double.
+Where documentation omits the type suffix (eg CPath), it is referring to an
+array whose data type could be either int64_t or double.
+
+For conciseness, the following letters are used in the diagrams below:
+N: Number of vertices in a given path
+C: Count (ie number) of paths (or PolyPaths) in the structure
+A: Number of elements in an array
+
+
+CPath64 and CPathD:
+These are arrays of either int64_t or double values. Apart from
+the first two elements, these arrays are a series of vertices
+that together define a path. The very first element contains the
+number of vertices (N) in the path, while second element should
+contain a 0 value.
+_______________________________________________________________
+| counters | vertex1      | vertex2      | ... | vertexN      |
+| N, 0     | x1, y1, (z1) | x2, y2, (z2) | ... | xN, yN, (zN) |
+---------------------------------------------------------------
+
+
+CPaths64 and CPathsD:
+These are also arrays of either int64_t or double values that
+contain any number of consecutive CPath structures. However,
+preceding the first path is a pair of values. The first value
+contains the length of the entire array structure (A), and the
+second contains the number (ie count) of contained paths (C).
+  Memory allocation for CPaths64 = A * sizeof(int64_t)
+  Memory allocation for CPathsD  = A * sizeof(double)
+__________________________________________
+| counters | path1 | path2 | ... | pathC |
+| A, C     |       |       | ... |       |
+------------------------------------------
+
+
+CPolytree64 and CPolytreeD:
+The entire polytree structure is an array of int64_t or double. The
+first element in the array indicates the array's total length (A).
+The second element indicates the number (C) of CPolyPath structures
+that are the TOP LEVEL CPolyPath in the polytree, and these top
+level CPolyPath immediately follow these first two array elements.
+These top level CPolyPath structures may, in turn, contain nested
+CPolyPath children, and these collectively make a tree structure.
+_________________________________________________________
+| counters | CPolyPath1 | CPolyPath2 | ... | CPolyPathC |
+| A, C     |            |            | ... |            |
+---------------------------------------------------------
+
+
+CPolyPath64 and CPolyPathD:
+These array structures consist of a pair of counter values followed by a
+series of polygon vertices and a series of nested CPolyPath children.
+The first counter values indicates the number of vertices in the
+polygon (N), and the second counter indicates the CPolyPath child count (C).
+_____________________________________________________________________________
+|cntrs |vertex1     |vertex2      |...|vertexN     |child1|child2|...|childC|
+|N, C  |x1, y1, (z1)| x2, y2, (z2)|...|xN, yN, (zN)|      |      |...|      |
+-----------------------------------------------------------------------------
+
+
+DisposeArray64 & DisposeArrayD:
+All array structures are allocated in heap memory which will eventually
+need to be released. However, since applications linking to these DLL
+functions may use different memory managers, the only safe way to release
+this memory is to use the exported DisposeArray functions.
+
+
+(Optional) Z-Values:
+Structures will only contain user-defined z-values when the USINGZ
+pre-processor identifier is used. The library does not assign z-values
+because this field is intended for users to assign custom values to vertices.
+Z-values in input paths (subject and clip) will be copied to solution paths.
+New vertices at path intersections will generate a callback event that allows
+users to assign z-values at these new vertices. The user's callback function
+must conform with the DLLZCallback definition and be registered with the
+DLL via SetZCallback. To assist the user in assigning z-values, the library
+passes in the callback function the new intersection point together with
+the four vertices that define the two segments that are intersecting.
+
+*/
+#ifndef CLIPPER2_EXPORT_H
+#define CLIPPER2_EXPORT_H
+
+#include "clipper2/clipper.core.h"
+#include "clipper2/clipper.engine.h"
+#include "clipper2/clipper.offset.h"
+#include "clipper2/clipper.rectclip.h"
+#include <cstdlib>
+
+#ifdef USINGZ
+namespace Clipper2Lib_Z {
+#else
+namespace Clipper2Lib {
+#endif
+
+typedef int64_t* CPath64;
+typedef int64_t* CPaths64;
+typedef double*  CPathD;
+typedef double*  CPathsD;
+
+typedef int64_t* CPolyPath64;
+typedef int64_t* CPolyTree64;
+typedef double* CPolyPathD;
+typedef double* CPolyTreeD;
+
+template <typename T>
+struct CRect {
+  T left;
+  T top;
+  T right;
+  T bottom;
+};
+
+typedef CRect<int64_t> CRect64;
+typedef CRect<double> CRectD;
+
+template <typename T>
+inline bool CRectIsEmpty(const CRect<T>& rect)
+{
+  return (rect.right <= rect.left) || (rect.bottom <= rect.top);
+}
+
+template <typename T>
+inline Rect<T> CRectToRect(const CRect<T>& rect)
+{
+  Rect<T> result;
+  result.left = rect.left;
+  result.top = rect.top;
+  result.right = rect.right;
+  result.bottom = rect.bottom;
+  return result;
+}
+
+template <typename T1, typename T2>
+inline T1 Reinterpret(T2 value) {
+  return *reinterpret_cast<T1*>(&value);
+}
+
+
+#ifdef _WIN32
+  #define EXTERN_DLL_EXPORT extern "C" __declspec(dllexport)
+#else
+  #define EXTERN_DLL_EXPORT extern "C"
+#endif
+
+
+//////////////////////////////////////////////////////
+// EXPORTED FUNCTION DECLARATIONS
+//////////////////////////////////////////////////////
+
+EXTERN_DLL_EXPORT const char* Version();
+
+EXTERN_DLL_EXPORT void DisposeArray64(int64_t*& p)
+{
+  delete[] p;
+}
+
+EXTERN_DLL_EXPORT void DisposeArrayD(double*& p)
+{
+  delete[] p;
+}
+
+EXTERN_DLL_EXPORT int BooleanOp64(uint8_t cliptype,
+  uint8_t fillrule, const CPaths64 subjects,
+  const CPaths64 subjects_open, const CPaths64 clips,
+  CPaths64& solution, CPaths64& solution_open,
+  bool preserve_collinear = true, bool reverse_solution = false);
+
+EXTERN_DLL_EXPORT int BooleanOp_PolyTree64(uint8_t cliptype,
+  uint8_t fillrule, const CPaths64 subjects,
+  const CPaths64 subjects_open, const CPaths64 clips,
+  CPolyTree64& sol_tree, CPaths64& solution_open,
+  bool preserve_collinear = true, bool reverse_solution = false);
+
+EXTERN_DLL_EXPORT int BooleanOpD(uint8_t cliptype,
+  uint8_t fillrule, const CPathsD subjects,
+  const CPathsD subjects_open, const CPathsD clips,
+  CPathsD& solution, CPathsD& solution_open, int precision = 2,
+  bool preserve_collinear = true, bool reverse_solution = false);
+
+EXTERN_DLL_EXPORT int BooleanOp_PolyTreeD(uint8_t cliptype,
+  uint8_t fillrule, const CPathsD subjects,
+  const CPathsD subjects_open, const CPathsD clips,
+  CPolyTreeD& solution, CPathsD& solution_open, int precision = 2,
+  bool preserve_collinear = true, bool reverse_solution = false);
+
+EXTERN_DLL_EXPORT CPaths64 InflatePaths64(const CPaths64 paths,
+  double delta, uint8_t jointype, uint8_t endtype,
+  double miter_limit = 2.0, double arc_tolerance = 0.0,
+  bool reverse_solution = false);
+
+EXTERN_DLL_EXPORT CPathsD InflatePathsD(const CPathsD paths,
+  double delta, uint8_t jointype, uint8_t endtype,
+  int precision = 2, double miter_limit = 2.0,
+  double arc_tolerance = 0.0, bool reverse_solution = false);
+
+EXTERN_DLL_EXPORT CPaths64 InflatePath64(const CPath64 path,
+    double delta, uint8_t jointype, uint8_t endtype,
+    double miter_limit = 2.0, double arc_tolerance = 0.0,
+    bool reverse_solution = false);
+
+EXTERN_DLL_EXPORT CPathsD InflatePathD(const CPathD path,
+    double delta, uint8_t jointype, uint8_t endtype,
+    int precision = 2, double miter_limit = 2.0,
+    double arc_tolerance = 0.0, bool reverse_solution = false);
+
+// RectClip & RectClipLines:
+EXTERN_DLL_EXPORT CPaths64 RectClip64(const CRect64& rect,
+  const CPaths64 paths);
+EXTERN_DLL_EXPORT CPathsD RectClipD(const CRectD& rect,
+  const CPathsD paths, int precision = 2);
+EXTERN_DLL_EXPORT CPaths64 RectClipLines64(const CRect64& rect,
+  const CPaths64 paths);
+EXTERN_DLL_EXPORT CPathsD RectClipLinesD(const CRectD& rect,
+  const CPathsD paths, int precision = 2);
+
+//////////////////////////////////////////////////////
+// INTERNAL FUNCTIONS
+//////////////////////////////////////////////////////
+
+#ifdef USINGZ
+ZCallback64 dllCallback64 = nullptr;
+ZCallbackD  dllCallbackD  = nullptr;
+
+constexpr int EXPORT_VERTEX_DIMENSIONALITY = 3;
+#else
+constexpr int EXPORT_VERTEX_DIMENSIONALITY  = 2;
+#endif
+
+template <typename T>
+static void GetPathCountAndCPathsArrayLen(const Paths<T>& paths,
+  size_t& cnt, size_t& array_len)
+{
+  array_len = 2;
+  cnt = 0;
+  for (const Path<T>& path : paths)
+    if (path.size())
+    {
+      array_len += path.size() * EXPORT_VERTEX_DIMENSIONALITY + 2;
+      ++cnt;
+    }
+}
+
+static size_t GetPolyPathArrayLen64(const PolyPath64& pp)
+{
+  size_t result = 2; // poly_length + child_count
+  result += pp.Polygon().size() * EXPORT_VERTEX_DIMENSIONALITY;
+  //plus nested children :)
+  for (size_t i = 0; i < pp.Count(); ++i)
+    result += GetPolyPathArrayLen64(*pp[i]);
+  return result;
+}
+
+static size_t GetPolyPathArrayLenD(const PolyPathD& pp)
+{
+  size_t result = 2; // poly_length + child_count
+  result += pp.Polygon().size() * EXPORT_VERTEX_DIMENSIONALITY;
+  //plus nested children :)
+  for (size_t i = 0; i < pp.Count(); ++i)
+    result += GetPolyPathArrayLenD(*pp[i]);
+  return result;
+}
+
+static void GetPolytreeCountAndCStorageSize64(const PolyTree64& tree,
+  size_t& cnt, size_t& array_len)
+{
+  cnt = tree.Count(); // nb: top level count only
+  array_len = GetPolyPathArrayLen64(tree);
+}
+
+static void GetPolytreeCountAndCStorageSizeD(const PolyTreeD& tree,
+  size_t& cnt, size_t& array_len)
+{
+  cnt = tree.Count(); // nb: top level count only
+  array_len = GetPolyPathArrayLenD(tree);
+}
+
+template <typename T>
+static T* CreateCPathsFromPathsT(const Paths<T>& paths)
+{
+  size_t cnt = 0, array_len = 0;
+  GetPathCountAndCPathsArrayLen(paths, cnt, array_len);
+  T* result = new T[array_len], * v = result;
+  *v++ = array_len;
+  *v++ = cnt;
+  for (const Path<T>& path : paths)
+  {
+    if (!path.size()) continue;
+    *v++ = path.size();
+    *v++ = 0;
+    for (const Point<T>& pt : path)
+    {
+      *v++ = pt.x;
+      *v++ = pt.y;
+#ifdef USINGZ
+      *v++ = Reinterpret<T>(pt.z);
+#endif
+    }
+  }
+  return result;
+}
+
+CPathsD CreateCPathsDFromPathsD(const PathsD& paths)
+{
+  if (!paths.size()) return nullptr;
+  size_t cnt, array_len;
+  GetPathCountAndCPathsArrayLen(paths, cnt, array_len);
+  CPathsD result = new double[array_len], v = result;
+  *v++ = (double)array_len;
+  *v++ = (double)cnt;
+  for (const PathD& path : paths)
+  {
+    if (!path.size()) continue;
+    *v = (double)path.size();
+    ++v; *v++ = 0;
+    for (const PointD& pt : path)
+    {
+      *v++ = pt.x;
+      *v++ = pt.y;
+#ifdef USINGZ
+      * v++ = Reinterpret<double>(pt.z);
+#endif
+    }
+  }
+  return result;
+}
+
+CPathsD CreateCPathsDFromPaths64(const Paths64& paths, double scale)
+{
+  if (!paths.size()) return nullptr;
+  size_t cnt, array_len;
+  GetPathCountAndCPathsArrayLen(paths, cnt, array_len);
+  CPathsD result = new double[array_len], v = result;
+  *v++ = (double)array_len;
+  *v++ = (double)cnt;
+  for (const Path64& path : paths)
+  {
+    if (!path.size()) continue;
+    *v = (double)path.size();
+    ++v; *v++ = 0;
+    for (const Point64& pt : path)
+    {
+      *v++ = pt.x * scale;
+      *v++ = pt.y * scale;
+#ifdef USINGZ
+      *v++ = Reinterpret<double>(pt.z);
+#endif
+    }
+  }
+  return result;
+}
+
+template <typename T>
+static Path<T> ConvertCPathToPathT(T* path)
+{
+  Path<T> result;
+  if (!path) return result;
+  T* v = path;
+  size_t cnt = static_cast<size_t>(*v);
+  v += 2; // skip 0 value
+  result.reserve(cnt);
+  for (size_t j = 0; j < cnt; ++j)
+  {
+      T x = *v++, y = *v++;
+#ifdef USINGZ
+      z_type z = Reinterpret<z_type>(*v++);
+      result.emplace_back(x, y, z);
+#else
+      result.emplace_back(x, y);
+#endif
+  }
+  return result;
+}
+
+template <typename T>
+static Paths<T> ConvertCPathsToPathsT(T* paths)
+{
+  Paths<T> result;
+  if (!paths) return result;
+  T* v = paths; ++v;
+  size_t cnt = static_cast<size_t>(*v++);
+  result.reserve(cnt);
+  for (size_t i = 0; i < cnt; ++i)
+  {
+    size_t cnt2 = static_cast<size_t>(*v);
+    v += 2;
+    Path<T> path;
+    path.reserve(cnt2);
+    for (size_t j = 0; j < cnt2; ++j)
+    {
+      T x = *v++, y = *v++;
+#ifdef USINGZ
+      z_type z = Reinterpret<z_type>(*v++);
+      path.emplace_back(x, y, z);
+#else
+      path.emplace_back(x, y);
+#endif
+    }
+    result.emplace_back(std::move(path));
+  }
+  return result;
+}
+
+static Path64 ConvertCPathDToPath64WithScale(const CPathD path, double scale)
+{
+    Path64 result;
+    if (!path) return result;
+    double* v = path;
+    size_t cnt = static_cast<size_t>(*v);
+    v += 2; // skip 0 value
+    result.reserve(cnt);
+    for (size_t j = 0; j < cnt; ++j)
+    {
+        double x = *v++ * scale;
+        double y = *v++ * scale;
+#ifdef USINGZ
+        z_type z = Reinterpret<z_type>(*v++);
+        result.emplace_back(x, y, z);
+#else
+        result.emplace_back(x, y);
+#endif
+    }
+    return result;
+}
+
+static Paths64 ConvertCPathsDToPaths64(const CPathsD paths, double scale)
+{
+  Paths64 result;
+  if (!paths) return result;
+  double* v = paths;
+  ++v; // skip the first value (0)
+  size_t cnt = static_cast<size_t>(*v++);
+  result.reserve(cnt);
+  for (size_t i = 0; i < cnt; ++i)
+  {
+    size_t cnt2 = static_cast<size_t>(*v);
+    v += 2;
+    Path64 path;
+    path.reserve(cnt2);
+    for (size_t j = 0; j < cnt2; ++j)
+    {
+      double x = *v++ * scale;
+      double y = *v++ * scale;
+#ifdef USINGZ
+      z_type z = Reinterpret<z_type>(*v++);
+      path.emplace_back(x, y, z);
+#else
+      path.emplace_back(x, y);
+#endif
+    }
+    result.emplace_back(std::move(path));
+  }
+  return result;
+}
+
+static void CreateCPolyPath64(const PolyPath64* pp, int64_t*& v)
+{
+  *v++ = static_cast<int64_t>(pp->Polygon().size());
+  *v++ = static_cast<int64_t>(pp->Count());
+  for (const Point64& pt : pp->Polygon())
+  {
+    *v++ = pt.x;
+    *v++ = pt.y;
+#ifdef USINGZ
+    * v++ = Reinterpret<int64_t>(pt.z); // raw memory copy
+#endif
+  }
+  for (size_t i = 0; i < pp->Count(); ++i)
+    CreateCPolyPath64(pp->Child(i), v);
+}
+
+static void CreateCPolyPathD(const PolyPathD* pp, double*& v)
+{
+  *v++ = static_cast<double>(pp->Polygon().size());
+  *v++ = static_cast<double>(pp->Count());
+  for (const PointD& pt : pp->Polygon())
+  {
+    *v++ = pt.x;
+    *v++ = pt.y;
+#ifdef USINGZ
+    * v++ = Reinterpret<double>(pt.z); // raw memory copy
+#endif
+  }
+  for (size_t i = 0; i < pp->Count(); ++i)
+    CreateCPolyPathD(pp->Child(i), v);
+}
+
+static int64_t* CreateCPolyTree64(const PolyTree64& tree)
+{
+  size_t cnt, array_len;
+  GetPolytreeCountAndCStorageSize64(tree, cnt, array_len);
+  if (!cnt) return nullptr;
+  // allocate storage
+  int64_t* result = new int64_t[array_len];
+  int64_t* v = result;
+  *v++ = static_cast<int64_t>(array_len);
+  *v++ = static_cast<int64_t>(tree.Count());
+  for (size_t i = 0; i < tree.Count(); ++i)
+    CreateCPolyPath64(tree.Child(i), v);
+  return result;
+}
+
+static double* CreateCPolyTreeD(const PolyTreeD& tree)
+{
+  double scale = std::log10(tree.Scale());
+  size_t cnt, array_len;
+  GetPolytreeCountAndCStorageSizeD(tree, cnt, array_len);
+  if (!cnt) return nullptr;
+  // allocate storage
+  double* result = new double[array_len];
+  double* v = result;
+  *v++ = static_cast<double>(array_len);
+  *v++ = static_cast<double>(tree.Count());
+  for (size_t i = 0; i < tree.Count(); ++i)
+    CreateCPolyPathD(tree.Child(i), v);
+  return result;
+}
+
+//////////////////////////////////////////////////////
+// EXPORTED FUNCTION DEFINITIONS
+//////////////////////////////////////////////////////
+
+EXTERN_DLL_EXPORT const char* Version()
+{
+  return CLIPPER2_VERSION;
+}
+
+EXTERN_DLL_EXPORT int BooleanOp64(uint8_t cliptype,
+  uint8_t fillrule, const CPaths64 subjects,
+  const CPaths64 subjects_open, const CPaths64 clips,
+  CPaths64& solution, CPaths64& solution_open,
+  bool preserve_collinear, bool reverse_solution)
+{
+  if (cliptype > static_cast<uint8_t>(ClipType::Xor)) return -4;
+  if (fillrule > static_cast<uint8_t>(FillRule::Negative)) return -3;
+
+  Paths64 sub, sub_open, clp, sol, sol_open;
+  sub       = ConvertCPathsToPathsT(subjects);
+  sub_open  = ConvertCPathsToPathsT(subjects_open);
+  clp       = ConvertCPathsToPathsT(clips);
+
+  Clipper64 clipper;
+  clipper.PreserveCollinear(preserve_collinear);
+  clipper.ReverseSolution(reverse_solution);
+#ifdef USINGZ
+  if (dllCallback64)
+    clipper.SetZCallback(dllCallback64);
+#endif
+  if (sub.size() > 0) clipper.AddSubject(sub);
+  if (sub_open.size() > 0) clipper.AddOpenSubject(sub_open);
+  if (clp.size() > 0) clipper.AddClip(clp);
+  if (!clipper.Execute(ClipType(cliptype), FillRule(fillrule), sol, sol_open))
+    return -1; // clipping bug - should never happen :)
+  solution = CreateCPathsFromPathsT(sol);
+  solution_open = CreateCPathsFromPathsT(sol_open);
+  return 0; //success !!
+}
+
+EXTERN_DLL_EXPORT int BooleanOp_PolyTree64(uint8_t cliptype,
+  uint8_t fillrule, const CPaths64 subjects,
+  const CPaths64 subjects_open, const CPaths64 clips,
+  CPolyTree64& sol_tree, CPaths64& solution_open,
+  bool preserve_collinear, bool reverse_solution)
+{
+  if (cliptype > static_cast<uint8_t>(ClipType::Xor)) return -4;
+  if (fillrule > static_cast<uint8_t>(FillRule::Negative)) return -3;
+  Paths64 sub, sub_open, clp, sol_open;
+  sub = ConvertCPathsToPathsT(subjects);
+  sub_open = ConvertCPathsToPathsT(subjects_open);
+  clp = ConvertCPathsToPathsT(clips);
+
+  PolyTree64 tree;
+  Clipper64 clipper;
+  clipper.PreserveCollinear(preserve_collinear);
+  clipper.ReverseSolution(reverse_solution);
+#ifdef USINGZ
+  if (dllCallback64)
+    clipper.SetZCallback(dllCallback64);
+#endif
+  if (sub.size() > 0) clipper.AddSubject(sub);
+  if (sub_open.size() > 0) clipper.AddOpenSubject(sub_open);
+  if (clp.size() > 0) clipper.AddClip(clp);
+  if (!clipper.Execute(ClipType(cliptype), FillRule(fillrule), tree, sol_open))
+    return -1; // clipping bug - should never happen :)
+
+  sol_tree = CreateCPolyTree64(tree);
+  solution_open = CreateCPathsFromPathsT(sol_open);
+  return 0; //success !!
+}
+
+EXTERN_DLL_EXPORT int BooleanOpD(uint8_t cliptype,
+  uint8_t fillrule, const CPathsD subjects,
+  const CPathsD subjects_open, const CPathsD clips,
+  CPathsD& solution, CPathsD& solution_open, int precision,
+  bool preserve_collinear, bool reverse_solution)
+{
+  if (precision < -8 || precision > 8) return -5;
+  if (cliptype > static_cast<uint8_t>(ClipType::Xor)) return -4;
+  if (fillrule > static_cast<uint8_t>(FillRule::Negative)) return -3;
+  //const double scale = std::pow(10, precision);
+
+  PathsD sub, sub_open, clp, sol, sol_open;
+  sub       = ConvertCPathsToPathsT(subjects);
+  sub_open  = ConvertCPathsToPathsT(subjects_open);
+  clp       = ConvertCPathsToPathsT(clips);
+
+  ClipperD clipper(precision);
+  clipper.PreserveCollinear(preserve_collinear);
+  clipper.ReverseSolution(reverse_solution);
+#ifdef USINGZ
+  if (dllCallbackD)
+    clipper.SetZCallback(dllCallbackD);
+#endif
+  if (sub.size() > 0) clipper.AddSubject(sub);
+  if (sub_open.size() > 0) clipper.AddOpenSubject(sub_open);
+  if (clp.size() > 0) clipper.AddClip(clp);
+  if (!clipper.Execute(ClipType(cliptype),
+    FillRule(fillrule), sol, sol_open)) return -1;
+  solution = CreateCPathsDFromPathsD(sol);
+  solution_open = CreateCPathsDFromPathsD(sol_open);
+  return 0;
+}
+
+EXTERN_DLL_EXPORT int BooleanOp_PolyTreeD(uint8_t cliptype,
+  uint8_t fillrule, const CPathsD subjects,
+  const CPathsD subjects_open, const CPathsD clips,
+  CPolyTreeD& solution, CPathsD& solution_open, int precision,
+  bool preserve_collinear, bool reverse_solution)
+{
+  if (precision < -8 || precision > 8) return -5;
+  if (cliptype > static_cast<uint8_t>(ClipType::Xor)) return -4;
+  if (fillrule > static_cast<uint8_t>(FillRule::Negative)) return -3;
+  //double scale = std::pow(10, precision);
+
+  int err = 0;
+  PathsD sub, sub_open, clp, sol_open;
+  sub       = ConvertCPathsToPathsT(subjects);
+  sub_open  = ConvertCPathsToPathsT(subjects_open);
+  clp       = ConvertCPathsToPathsT(clips);
+
+  PolyTreeD tree;
+  ClipperD clipper(precision);
+  clipper.PreserveCollinear(preserve_collinear);
+  clipper.ReverseSolution(reverse_solution);
+#ifdef USINGZ
+  if (dllCallbackD)
+    clipper.SetZCallback(dllCallbackD);
+#endif
+  if (sub.size() > 0) clipper.AddSubject(sub);
+  if (sub_open.size() > 0) clipper.AddOpenSubject(sub_open);
+  if (clp.size() > 0) clipper.AddClip(clp);
+  if (!clipper.Execute(ClipType(cliptype), FillRule(fillrule), tree, sol_open))
+    return -1; // clipping bug - should never happen :)
+
+  solution = CreateCPolyTreeD(tree);
+  solution_open = CreateCPathsDFromPathsD(sol_open);
+  return 0; //success !!
+}
+
+EXTERN_DLL_EXPORT CPaths64 InflatePaths64(const CPaths64 paths,
+  double delta, uint8_t jointype, uint8_t endtype, double miter_limit,
+  double arc_tolerance, bool reverse_solution)
+{
+  Paths64 pp;
+  pp = ConvertCPathsToPathsT(paths);
+  ClipperOffset clip_offset( miter_limit,
+    arc_tolerance, reverse_solution);
+  clip_offset.AddPaths(pp, JoinType(jointype), EndType(endtype));
+  Paths64 result;
+  clip_offset.Execute(delta, result);
+  return CreateCPathsFromPathsT(result);
+}
+
+EXTERN_DLL_EXPORT CPathsD InflatePathsD(const CPathsD paths,
+  double delta, uint8_t jointype, uint8_t endtype,
+  int precision, double miter_limit,
+  double arc_tolerance, bool reverse_solution)
+{
+  if (precision < -8 || precision > 8 || !paths) return nullptr;
+
+  const double scale = std::pow(10, precision);
+  ClipperOffset clip_offset(miter_limit, arc_tolerance, reverse_solution);
+  Paths64 pp = ConvertCPathsDToPaths64(paths, scale);
+  clip_offset.AddPaths(pp, JoinType(jointype), EndType(endtype));
+  Paths64 result;
+  clip_offset.Execute(delta * scale, result);
+  return CreateCPathsDFromPaths64(result, 1 / scale);
+}
+
+
+EXTERN_DLL_EXPORT CPaths64 InflatePath64(const CPath64 path,
+    double delta, uint8_t jointype, uint8_t endtype, double miter_limit,
+    double arc_tolerance, bool reverse_solution)
+{
+    Path64 pp;
+    pp = ConvertCPathToPathT(path);
+    ClipperOffset clip_offset(miter_limit,
+        arc_tolerance, reverse_solution);
+    clip_offset.AddPath(pp, JoinType(jointype), EndType(endtype));
+    Paths64 result;
+    clip_offset.Execute(delta, result);
+    return CreateCPathsFromPathsT(result);
+}
+
+EXTERN_DLL_EXPORT CPathsD InflatePathD(const CPathD path,
+    double delta, uint8_t jointype, uint8_t endtype,
+    int precision, double miter_limit,
+    double arc_tolerance, bool reverse_solution)
+{
+    if (precision < -8 || precision > 8 || !path) return nullptr;
+
+    const double scale = std::pow(10, precision);
+    ClipperOffset clip_offset(miter_limit, arc_tolerance, reverse_solution);
+    Path64 pp = ConvertCPathDToPath64WithScale(path, scale);
+    clip_offset.AddPath(pp, JoinType(jointype), EndType(endtype));
+    Paths64 result;
+    clip_offset.Execute(delta * scale, result);
+
+    return CreateCPathsDFromPaths64(result, 1 / scale);
+}
+
+EXTERN_DLL_EXPORT CPaths64 RectClip64(const CRect64& rect, const CPaths64 paths)
+{
+  if (CRectIsEmpty(rect) || !paths) return nullptr;
+  Rect64 r64 = CRectToRect(rect);
+  class RectClip64 rc(r64);
+  Paths64 pp = ConvertCPathsToPathsT(paths);
+  Paths64 result = rc.Execute(pp);
+  return CreateCPathsFromPathsT(result);
+}
+
+EXTERN_DLL_EXPORT CPathsD RectClipD(const CRectD& rect, const CPathsD paths, int precision)
+{
+  if (CRectIsEmpty(rect) || !paths) return nullptr;
+  if (precision < -8 || precision > 8) return nullptr;
+  const double scale = std::pow(10, precision);
+
+  RectD r = CRectToRect(rect);
+  Rect64 rec = ScaleRect<int64_t, double>(r, scale);
+  Paths64 pp = ConvertCPathsDToPaths64(paths, scale);
+  class RectClip64 rc(rec);
+  Paths64 result = rc.Execute(pp);
+
+  return CreateCPathsDFromPaths64(result, 1 / scale);
+}
+
+EXTERN_DLL_EXPORT CPaths64 RectClipLines64(const CRect64& rect,
+  const CPaths64 paths)
+{
+  if (CRectIsEmpty(rect) || !paths) return nullptr;
+  Rect64 r = CRectToRect(rect);
+  class RectClipLines64 rcl (r);
+  Paths64 pp = ConvertCPathsToPathsT(paths);
+  Paths64 result = rcl.Execute(pp);
+  return CreateCPathsFromPathsT(result);
+}
+
+EXTERN_DLL_EXPORT CPathsD RectClipLinesD(const CRectD& rect,
+  const CPathsD paths, int precision)
+{
+  if (CRectIsEmpty(rect) || !paths) return nullptr;
+  if (precision < -8 || precision > 8) return nullptr;
+
+  const double scale = std::pow(10, precision);
+  Rect64 r = ScaleRect<int64_t, double>(CRectToRect(rect), scale);
+  class RectClipLines64 rcl(r);
+  Paths64 pp = ConvertCPathsDToPaths64(paths, scale);
+  Paths64 result = rcl.Execute(pp);
+  return CreateCPathsDFromPaths64(result, 1 / scale);
+}
+
+EXTERN_DLL_EXPORT CPaths64 MinkowskiSum64(const CPath64& cpattern, const CPath64& cpath, bool is_closed)
+{
+  Path64 path = ConvertCPathToPathT(cpath);
+  Path64 pattern = ConvertCPathToPathT(cpattern);
+  Paths64 solution = MinkowskiSum(pattern, path, is_closed);
+  return CreateCPathsFromPathsT(solution);
+}
+
+EXTERN_DLL_EXPORT CPaths64 MinkowskiDiff64(const CPath64& cpattern, const CPath64& cpath, bool is_closed)
+{
+  Path64 path = ConvertCPathToPathT(cpath);
+  Path64 pattern = ConvertCPathToPathT(cpattern);
+  Paths64 solution = MinkowskiDiff(pattern, path, is_closed);
+  return CreateCPathsFromPathsT(solution);
+}
+
+#ifdef USINGZ
+typedef void (*DLLZCallback64)(const Point64& e1bot, const Point64& e1top, const Point64& e2bot, const Point64& e2top, Point64& pt);
+typedef void (*DLLZCallbackD)(const PointD& e1bot, const PointD& e1top, const PointD& e2bot, const PointD& e2top, PointD& pt);
+
+EXTERN_DLL_EXPORT void SetZCallback64(DLLZCallback64 callback)
+{
+  dllCallback64 = callback;
+}
+
+EXTERN_DLL_EXPORT void SetZCallbackD(DLLZCallbackD callback)
+{
+  dllCallbackD = callback;
+}
+
+#endif
+
+}
+#endif  // CLIPPER2_EXPORT_H