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// Copyright 2016 The Draco Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#ifndef DRACO_COMPRESSION_MESH_MESH_DECODER_H_
#define DRACO_COMPRESSION_MESH_MESH_DECODER_H_
#include "draco/compression/attributes/mesh_attribute_indices_encoding_data.h"
#include "draco/compression/point_cloud/point_cloud_decoder.h"
#include "draco/mesh/mesh.h"
#include "draco/mesh/mesh_attribute_corner_table.h"
namespace draco {
// Class that reconstructs a 3D mesh from input data that was encoded by
// MeshEncoder.
class MeshDecoder : public PointCloudDecoder {
public:
MeshDecoder();
EncodedGeometryType GetGeometryType() const override {
return TRIANGULAR_MESH;
}
// The main entry point for mesh decoding.
Status Decode(const DecoderOptions &options, DecoderBuffer *in_buffer,
Mesh *out_mesh);
// Returns the base connectivity of the decoded mesh (or nullptr if it is not
// initialized).
virtual const CornerTable *GetCornerTable() const { return nullptr; }
// Returns the attribute connectivity data or nullptr if it does not exist.
virtual const MeshAttributeCornerTable *GetAttributeCornerTable(
int /* att_id */) const {
return nullptr;
}
// Returns the decoding data for a given attribute or nullptr when the data
// does not exist.
virtual const MeshAttributeIndicesEncodingData *GetAttributeEncodingData(
int /* att_id */) const {
return nullptr;
}
Mesh *mesh() const { return mesh_; }
protected:
bool DecodeGeometryData() override;
virtual bool DecodeConnectivity() = 0;
private:
Mesh *mesh_;
};
} // namespace draco
#endif // DRACO_COMPRESSION_MESH_MESH_DECODER_H_
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