Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/opensubdiv/hbr/fvarEdit.h

@@ -0,0 +1,104 @@
+//
+//   Copyright 2013 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#ifndef OPENSUBDIV3_HBRFVAREDIT_H
+#define OPENSUBDIV3_HBRFVAREDIT_H
+
+#include "../hbr/hierarchicalEdit.h"
+#include "../hbr/vertexEdit.h"
+
+#include "../version.h"
+
+namespace OpenSubdiv {
+namespace OPENSUBDIV_VERSION {
+
+template <class T> class HbrFVarEdit;
+
+template <class T>
+std::ostream& operator<<(std::ostream& out, const HbrFVarEdit<T>& path) {
+    out << "vertex path = (" << path.faceid << ' ';
+    for (int i = 0; i < path.nsubfaces; ++i) {
+        out << static_cast<int>(path.subfaces[i]) << ' ';
+    }
+    return out << static_cast<int>(path.vertexid) << "), edit = (" << path.edit[0] << ',' << path.edit[1] << ',' << path.edit[2] << ')';
+}
+
+template <class T>
+class HbrFVarEdit : public HbrHierarchicalEdit<T> {
+
+public:
+
+    HbrFVarEdit(int _faceid, int _nsubfaces, unsigned char *_subfaces, unsigned char _vertexid, int _index, int _width, int _offset, typename HbrHierarchicalEdit<T>::Operation _op, float *_edit)
+        : HbrHierarchicalEdit<T>(_faceid, _nsubfaces, _subfaces), vertexid(_vertexid), index(_index), width(_width), offset(_offset), op(_op) {
+        edit = new float[width];
+        memcpy(edit, _edit, width * sizeof(float));
+    }
+
+    HbrFVarEdit(int _faceid, int _nsubfaces, int *_subfaces, int _vertexid, int _index, int _width, int _offset, typename HbrHierarchicalEdit<T>::Operation _op, float *_edit)
+        : HbrHierarchicalEdit<T>(_faceid, _nsubfaces, _subfaces), vertexid(_vertexid), index(_index), width(_width), offset(_offset), op(_op) {
+        edit = new float[width];
+        memcpy(edit, _edit, width * sizeof(float));
+    }
+
+    virtual ~HbrFVarEdit() {
+        delete[] edit;
+    }
+
+    // Return the vertex id (the last element in the path)
+    unsigned char GetVertexID() const { return vertexid; }
+
+    friend std::ostream& operator<< <T> (std::ostream& out, const HbrFVarEdit<T>& path);
+
+    // Return index into the facevarying data
+    int GetIndex() const { return index; }
+
+    // Return width of the data
+    int GetWidth() const { return width; }
+
+    // Return offset of the data
+    int GetOffset() const { return offset; }
+
+    // Get the numerical value of the edit
+    const float* GetEdit() const { return edit; }
+
+    // Get the type of operation
+    typename HbrHierarchicalEdit<T>::Operation GetOperation() const { return op; }
+
+    virtual void ApplyEditToFace(HbrFace<T>* face) {
+        if (HbrHierarchicalEdit<T>::GetNSubfaces() == face->GetDepth()) {
+            // The edit will modify the data and almost certainly
+            // create a discontinuity, so allocate storage for a new
+            // copy of the existing data specific to the face (or use
+            // one that already exists) and modify that
+            HbrFVarData<T> &fvt = face->GetVertex(vertexid)->GetFVarData(face);
+            if (fvt.GetFaceID() != face->GetID()) {
+                // This is the generic fvt, allocate a new copy and edit it
+                HbrFVarData<T> &newfvt = face->GetVertex(vertexid)->NewFVarData(face);
+                newfvt.SetAllData(face->GetMesh()->GetTotalFVarWidth(), fvt.GetData(0));
+                newfvt.ApplyFVarEdit(*const_cast<const HbrFVarEdit<T>*>(this));
+            } else {
+                fvt.ApplyFVarEdit(*const_cast<const HbrFVarEdit<T>*>(this));
+            }
+        }
+    }
+
+private:
+    const unsigned char vertexid;
+    const int index;
+    const int width;
+    const int offset;
+    float* edit;
+    typename HbrHierarchicalEdit<T>::Operation op;
+};
+
+
+} // end namespace OPENSUBDIV_VERSION
+using namespace OPENSUBDIV_VERSION;
+
+} // end namespace OpenSubdiv
+
+#endif /* OPENSUBDIV3_HBRFVAREDIT_H */