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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_IO_MESH_PLY_DECODER_H_
#define DRACO_IO_MESH_PLY_DECODER_H_
#include <string>
#include "draco/draco_features.h"
#include "draco/core/decoder_buffer.h"
#include "draco/core/status.h"
#include "draco/io/ply_reader.h"
#include "draco/mesh/mesh.h"
namespace draco {
// Decodes a Wavefront OBJ file into draco::Mesh (or draco::PointCloud if the
// connectivity data is not needed).
// TODO(ostava): The current implementation assumes that the input vertices are
// defined with x, y, z properties. The decoder also reads uint8 red, green,
// blue, alpha color information, but all other attributes are ignored for now.
class PlyDecoder {
public:
PlyDecoder();
// Decodes an obj file stored in the input file.
Status DecodeFromFile(const std::string &file_name, Mesh *out_mesh);
Status DecodeFromFile(const std::string &file_name,
PointCloud *out_point_cloud);
Status DecodeFromBuffer(DecoderBuffer *buffer, Mesh *out_mesh);
Status DecodeFromBuffer(DecoderBuffer *buffer, PointCloud *out_point_cloud);
protected:
Status DecodeInternal();
DecoderBuffer *buffer() { return &buffer_; }
private:
Status DecodeFaceData(const PlyElement *face_element);
Status DecodeVertexData(const PlyElement *vertex_element);
template <typename DataTypeT>
bool ReadPropertiesToAttribute(
const std::vector<const PlyProperty *> &properties,
PointAttribute *attribute, int num_vertices);
DecoderBuffer buffer_;
// Data structure that stores the decoded data. |out_point_cloud_| must be
// always set but |out_mesh_| is optional.
Mesh *out_mesh_;
PointCloud *out_point_cloud_;
};
} // namespace draco
#endif // DRACO_IO_MESH_PLY_DECODER_H_
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