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41 lines
1.7 KiB
C++
41 lines
1.7 KiB
C++
// Copyright 2016 The Draco Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the 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 License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Shared funcionality for different parallelogram prediction schemes.
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#ifndef DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_PARALLELOGRAM_SHARED_H_
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#define DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_PARALLELOGRAM_SHARED_H_
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#include "mesh/corner_table.h"
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#include "mesh/mesh.h"
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namespace draco {
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template <class CornerTableT>
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inline void GetParallelogramEntries(
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const CornerIndex ci, const CornerTableT *table,
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const std::vector<int32_t> &vertex_to_data_map, int *opp_entry,
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int *next_entry, int *prev_entry) {
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// One vertex of the input |table| correspond to exactly one attribute value
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// entry. The |table| can be either CornerTable for per-vertex attributes,
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// or MeshAttributeCornerTable for attributes with interior seams.
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*opp_entry = vertex_to_data_map[table->Vertex(ci).value()];
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*next_entry = vertex_to_data_map[table->Vertex(table->Next(ci)).value()];
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*prev_entry = vertex_to_data_map[table->Vertex(table->Previous(ci)).value()];
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}
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} // namespace draco
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#endif // DRACO_COMPRESSION_ATTRIBUTES_PREDICTION_SCHEMES_MESH_PREDICTION_SCHEME_PARALLELOGRAM_SHARED_H_
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