85 lines
2.7 KiB
C++
85 lines
2.7 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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#ifndef DRACO_COMPRESSION_MESH_MESH_ENCODER_H_
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#define DRACO_COMPRESSION_MESH_MESH_ENCODER_H_
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#include "draco/compression/attributes/mesh_attribute_indices_encoding_data.h"
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#include "draco/compression/point_cloud/point_cloud_encoder.h"
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#include "draco/mesh/mesh.h"
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#include "draco/mesh/mesh_attribute_corner_table.h"
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namespace draco {
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// Abstract base class for all mesh encoders. It provides some basic
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// functionality that's shared between different encoders.
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class MeshEncoder : public PointCloudEncoder {
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public:
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MeshEncoder();
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// Sets the mesh that is going be encoded. Must be called before the Encode()
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// method.
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void SetMesh(const Mesh &m);
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EncodedGeometryType GetGeometryType() const override {
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return TRIANGULAR_MESH;
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}
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// Returns the number of faces that were encoded during the last Encode().
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// function call. Valid only if "store_number_of_encoded_faces" flag was set
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// in the provided EncoderOptions.
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size_t num_encoded_faces() const { return num_encoded_faces_; }
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// Returns the base connectivity of the encoded mesh (or nullptr if it is not
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// initialized).
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virtual const CornerTable *GetCornerTable() const { return nullptr; }
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// Returns the attribute connectivity data or nullptr if it does not exist.
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virtual const MeshAttributeCornerTable *GetAttributeCornerTable(
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int /* att_id */) const {
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return nullptr;
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}
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// Returns the encoding data for a given attribute or nullptr when the data
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// does not exist.
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virtual const MeshAttributeIndicesEncodingData *GetAttributeEncodingData(
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int /* att_id */) const {
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return nullptr;
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}
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const Mesh *mesh() const { return mesh_; }
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protected:
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Status EncodeGeometryData() override;
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// Needs to be implemented by the derived classes.
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virtual Status EncodeConnectivity() = 0;
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// Computes and sets the num_encoded_faces_ for the encoder.
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virtual void ComputeNumberOfEncodedFaces() = 0;
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void set_mesh(const Mesh *mesh) { mesh_ = mesh; }
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void set_num_encoded_faces(size_t num_faces) {
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num_encoded_faces_ = num_faces;
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}
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private:
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const Mesh *mesh_;
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size_t num_encoded_faces_;
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};
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} // namespace draco
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#endif // DRACO_COMPRESSION_MESH_MESH_ENCODER_H_
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