mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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216 lines
7.5 KiB
C++
216 lines
7.5 KiB
C++
//
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// Copyright (C) Pixar. All rights reserved.
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//
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// This license governs use of the accompanying software. If you
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// use the software, you accept this license. If you do not accept
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// the license, do not use the software.
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//
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// 1. Definitions
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// The terms "reproduce," "reproduction," "derivative works," and
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// "distribution" have the same meaning here as under U.S.
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// copyright law. A "contribution" is the original software, or
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// any additions or changes to the software.
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// A "contributor" is any person or entity that distributes its
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// contribution under this license.
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// "Licensed patents" are a contributor's patent claims that read
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// directly on its contribution.
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//
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// 2. Grant of Rights
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// (A) Copyright Grant- Subject to the terms of this license,
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// including the license conditions and limitations in section 3,
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// each contributor grants you a non-exclusive, worldwide,
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// royalty-free copyright license to reproduce its contribution,
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// prepare derivative works of its contribution, and distribute
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// its contribution or any derivative works that you create.
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// (B) Patent Grant- Subject to the terms of this license,
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// including the license conditions and limitations in section 3,
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// each contributor grants you a non-exclusive, worldwide,
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// royalty-free license under its licensed patents to make, have
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// made, use, sell, offer for sale, import, and/or otherwise
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// dispose of its contribution in the software or derivative works
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// of the contribution in the software.
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//
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// 3. Conditions and Limitations
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// (A) No Trademark License- This license does not grant you
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// rights to use any contributor's name, logo, or trademarks.
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// (B) If you bring a patent claim against any contributor over
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// patents that you claim are infringed by the software, your
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// patent license from such contributor to the software ends
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// automatically.
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// (C) If you distribute any portion of the software, you must
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// retain all copyright, patent, trademark, and attribution
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// notices that are present in the software.
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// (D) If you distribute any portion of the software in source
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// code form, you may do so only under this license by including a
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// complete copy of this license with your distribution. If you
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// distribute any portion of the software in compiled or object
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// code form, you may only do so under a license that complies
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// with this license.
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// (E) The software is licensed "as-is." You bear the risk of
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// using it. The contributors give no express warranties,
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// guarantees or conditions. You may have additional consumer
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// rights under your local laws which this license cannot change.
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// To the extent permitted under your local laws, the contributors
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// exclude the implied warranties of merchantability, fitness for
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// a particular purpose and non-infringement.
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//
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#ifndef FAR_VERTEX_EDIT_TABLES_H
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#define FAR_VERTEX_EDIT_TABLES_H
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#include <assert.h>
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#include <utility>
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#include <vector>
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#include "../version.h"
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#include "../far/table.h"
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#include "../far/dispatcher.h"
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#include "../hbr/vertexEdit.h"
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template <class T> class HbrFace;
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template <class T> class HbrHalfedge;
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template <class T> class HbrVertex;
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template <class T> class HbrMesh;
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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template <class T, class U> class FarMesh;
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template <class T, class U> class FarMeshFactory;
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template <class T, class U=T> class FarVertexEditTables {
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public:
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FarVertexEditTables( FarMesh<T,U> * mesh, int maxlevel);
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// type of edit operation. This enum matches to HbrHiearachicalEdit<T>::Operation
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enum Operation {
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Set,
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Add
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};
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// Compute the positions of edited vertices
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void Apply(int level, void * clientdata=0) const;
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int GetNumBatches() const {
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return (int)_batches.size();
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}
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// this class holds a batch for vertex edit. each batch has unique index/width/operation
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class VertexEdit {
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public:
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VertexEdit(int index, int width, Operation operation);
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// copy vertex id and edit values into table
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void Append(int level, int vertexID, const float *values, bool negate);
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// Compute-kernel applied to vertices
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void ApplyVertexEdit(U * vsrc, int level) const;
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// Edit tables accessors
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// Returns the edit offset table
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FarTable<unsigned int> const & Get_Offsets() const { return _offsets; }
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// Returns the edit values table
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FarTable<float> const & Get_Values() const { return _values; }
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Operation GetOperation() const { return _operation; }
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int GetPrimvarOffset() const { return _index; }
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int GetPrimvarWidth() const { return _width; }
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private:
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friend class FarMeshFactory<T,U>;
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FarTable<unsigned int> _offsets; // absolute vertex index array for edits
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FarTable<float> _values; // edit values array
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int _index; // primvar offset in vertex
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int _width; // numElements per vertex in values
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Operation _operation; // edit operation (Set, Add)
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};
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VertexEdit const & GetBatch(int index) const {
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return _batches[index];
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}
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protected:
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friend class FarMeshFactory<T,U>;
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friend class FarDispatcher<T,U>;
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// Compute-kernel applied to vertices
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void editVertex(int level, void *clientdata) const;
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// mesh that owns this vertexEditTable
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FarMesh<T,U> * _mesh;
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std::vector<VertexEdit> _batches;
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};
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template <class T, class U>
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FarVertexEditTables<T,U>::VertexEdit::VertexEdit(int index, int width, Operation operation) :
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_index(index),
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_width(width),
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_operation(operation) {
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}
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template <class T, class U>
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void
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FarVertexEditTables<T,U>::VertexEdit::ApplyVertexEdit(U * vsrc, int level) const
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{
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int n = _offsets.GetNumElements(level-1);
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const unsigned int * offsets = _offsets[level-1];
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const float * values = _values[level-1];
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for(int i=0; i<n; ++i) {
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U * vdst = vsrc + offsets[i];
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// XXXX: tentative.
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// consider adding new interface to vertex class without HbrVertexEdit,
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// such as vdst->ApplyVertexEditAdd(const float *), vdst->ApplyVertexEditSet(const float *)
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if (_operation == FarVertexEditTables<T,U>::Set) {
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HbrVertexEdit<T> vedit(0, 0, 0, 0, 0, _width, false, HbrVertexEdit<T>::Set, const_cast<float*>(&values[i*_width]));
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vdst->ApplyVertexEdit(vedit);
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} else {
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HbrVertexEdit<T> vedit(0, 0, 0, 0, 0, _width, false, HbrVertexEdit<T>::Add, const_cast<float*>(&values[i*_width]));
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vdst->ApplyVertexEdit(vedit);
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}
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}
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}
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template <class T, class U>
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FarVertexEditTables<T,U>::FarVertexEditTables( FarMesh<T,U> * mesh, int maxlevel) :
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_mesh(mesh) {
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}
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template <class T, class U> void
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FarVertexEditTables<T,U>::Apply( int level, void * clientdata ) const {
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assert(this->_mesh and level>0);
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FarDispatcher<T,U> const * dispatch = this->_mesh->GetDispatcher();
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assert(dispatch);
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dispatch->ApplyVertexEdit(this->_mesh, 0, level, clientdata);
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}
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template <class T, class U> void
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FarVertexEditTables<T,U>::editVertex(int level, void *clientdata) const {
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assert(this->_mesh);
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U * vsrc = &this->_mesh->GetVertices().at(0);
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for(int i=0; i<(int)_batches.size(); ++i) {
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_batches[i].ApplyVertexEdit(vsrc, level);
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}
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}
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} // end namespace OPENSUBDIV_VERSION
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using namespace OPENSUBDIV_VERSION;
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} // end namespace OpenSubdiv
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#endif /* FAR_VERTEX_EDIT_TABLES_H */
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