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https://github.com/PixarAnimationStudios/OpenSubdiv
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5bf1c3a396
LimitStencilTableFactory::Create was returning fewer number of stencils, off by the number of coarse vertices.
175 lines
6.1 KiB
C++
175 lines
6.1 KiB
C++
//
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// Copyright 2015 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#include "../version.h"
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#include "../far/stencilTable.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Far {
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namespace {
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void
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copyStencilData(int numControlVerts,
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bool includeCoarseVerts,
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size_t firstOffset,
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std::vector<int> const* offsets,
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std::vector<int> * _offsets,
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std::vector<int> const* sizes,
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std::vector<int> * _sizes,
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std::vector<int> const* sources,
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std::vector<int> * _sources,
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std::vector<float> const* weights,
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std::vector<float> * _weights,
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std::vector<float> const* duWeights=NULL,
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std::vector<float> * _duWeights=NULL,
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std::vector<float> const* dvWeights=NULL,
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std::vector<float> * _dvWeights=NULL) {
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size_t start = includeCoarseVerts ? 0 : firstOffset;
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_offsets->resize(offsets->size());
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_sizes->resize(sizes->size());
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_sources->resize(sources->size());
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_weights->resize(weights->size());
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if (_duWeights)
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_duWeights->resize(duWeights->size());
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if (_dvWeights)
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_dvWeights->resize(dvWeights->size());
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// The stencils are probably not in order, so we must copy/sort them.
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// Note here that loop index 'i' represents stencil_i for vertex_i.
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int curOffset = 0;
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size_t stencilCount = 0,
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weightCount = 0;
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for ( size_t i=start; i<offsets->size(); i++ ) {
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// Once we've copied out all the control verts, jump to the offset
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// where the actual stencils begin.
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if (includeCoarseVerts and (int)i == numControlVerts)
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i = firstOffset;
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// Copy the stencil.
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int sz = (*sizes)[i];
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int off = (*offsets)[i];
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(*_offsets)[stencilCount] = curOffset;
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(*_sizes)[stencilCount] = sz;
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std::memcpy(&(*_sources)[curOffset],
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&(*sources)[off], sz*sizeof(int));
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std::memcpy(&(*_weights)[curOffset],
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&(*weights)[off], sz*sizeof(float));
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if (_duWeights) {
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std::memcpy(&(*_duWeights)[curOffset],
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&(*duWeights)[off], sz*sizeof(float));
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}
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if (_dvWeights) {
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std::memcpy(&(*_dvWeights)[curOffset],
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&(*dvWeights)[off], sz*sizeof(float));
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}
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curOffset += sz;
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stencilCount++;
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weightCount += sz;
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}
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_offsets->resize(stencilCount);
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_sizes->resize(stencilCount);
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_sources->resize(weightCount);
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if (_duWeights)
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_duWeights->resize(weightCount);
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if (_dvWeights)
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_dvWeights->resize(weightCount);
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}
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};
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StencilTable::StencilTable(int numControlVerts,
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std::vector<int> const& offsets,
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std::vector<int> const& sizes,
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std::vector<int> const& sources,
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std::vector<float> const& weights,
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bool includeCoarseVerts,
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size_t firstOffset)
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: _numControlVertices(numControlVerts) {
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copyStencilData(numControlVerts,
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includeCoarseVerts,
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firstOffset,
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&offsets, &_offsets,
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&sizes, &_sizes,
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&sources, &_indices,
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&weights, &_weights);
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}
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void
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StencilTable::Clear() {
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_numControlVertices=0;
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_sizes.clear();
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_offsets.clear();
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_indices.clear();
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_weights.clear();
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}
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LimitStencilTable::LimitStencilTable(int numControlVerts,
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std::vector<int> const& offsets,
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std::vector<int> const& sizes,
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std::vector<int> const& sources,
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std::vector<float> const& weights,
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std::vector<float> const& duWeights,
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std::vector<float> const& dvWeights,
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bool includeCoarseVerts,
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size_t firstOffset)
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: StencilTable(numControlVerts) {
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copyStencilData(numControlVerts,
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includeCoarseVerts,
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firstOffset,
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&offsets, &_offsets,
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&sizes, &_sizes,
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&sources, &_indices,
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&weights, &_weights,
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&duWeights, &_duWeights,
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&dvWeights, &_dvWeights);
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}
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void
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LimitStencilTable::Clear() {
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StencilTable::Clear();
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_duWeights.clear();
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_dvWeights.clear();
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}
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} // end namespace Far
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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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