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