DYT/Tool/OpenSceneGraph-3.6.5/include/draco/io/ply_property_writer.h

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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_PLY_PROPERTY_WRITER_H_
#define DRACO_IO_PLY_PROPERTY_WRITER_H_
#include <functional>
#include "draco/io/ply_reader.h"
namespace draco {
// Class for writing PlyProperty with a given type, performing data conversion
// if necessary.
template <typename WriteTypeT>
class PlyPropertyWriter {
public:
explicit PlyPropertyWriter(PlyProperty *property) : property_(property) {
// Find the suitable function for converting values.
switch (property->data_type()) {
case DT_UINT8:
convert_value_func_ = [=](WriteTypeT val) {
return this->ConvertValue<uint8_t>(val);
};
break;
case DT_INT8:
convert_value_func_ = [=](WriteTypeT val) {
return this->ConvertValue<int8_t>(val);
};
break;
case DT_UINT16:
convert_value_func_ = [=](WriteTypeT val) {
return this->ConvertValue<uint16_t>(val);
};
break;
case DT_INT16:
convert_value_func_ = [=](WriteTypeT val) {
return this->ConvertValue<int16_t>(val);
};
break;
case DT_UINT32:
convert_value_func_ = [=](WriteTypeT val) {
return this->ConvertValue<uint32_t>(val);
};
break;
case DT_INT32:
convert_value_func_ = [=](WriteTypeT val) {
return this->ConvertValue<int32_t>(val);
};
break;
case DT_FLOAT32:
convert_value_func_ = [=](WriteTypeT val) {
return this->ConvertValue<float>(val);
};
break;
case DT_FLOAT64:
convert_value_func_ = [=](WriteTypeT val) {
return this->ConvertValue<double>(val);
};
break;
default:
break;
}
}
void PushBackValue(WriteTypeT value) const {
return convert_value_func_(value);
}
private:
template <typename SourceTypeT>
void ConvertValue(WriteTypeT value) const {
const SourceTypeT src_val = static_cast<SourceTypeT>(value);
property_->push_back_value(&src_val);
}
PlyProperty *property_;
std::function<void(WriteTypeT)> convert_value_func_;
};
} // namespace draco
#endif // DRACO_IO_PLY_PROPERTY_WRITER_H_