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2026-07-13 13:33:03 +08:00

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C++

//
// FlattenOnnx.cpp
// MNNConverter
//
// Created by MNN on 2019/04/08.
// Copyright © 2018, Alibaba Group Holding Limited
//
#include "onnxOpConverter.hpp"
DECLARE_OP_CONVERTER(FlattenOnnx);
MNN::OpType FlattenOnnx::opType() {
return MNN::OpType_Flatten;
}
MNN::OpParameter FlattenOnnx::type() {
return MNN::OpParameter_Flatten;
}
void FlattenOnnx::run(MNN::OpT *dstOp, const onnx::NodeProto *onnxNode,
OnnxScope* scope) {
auto param = new MNN::FlattenT;
// Ref https://github.com/onnx/onnx/blob/master/docs/Operators.md#Flatten, Default is 1
int axis = 1;
for (int i = 0; i < onnxNode->attribute_size(); ++i) {
const auto &attributeProto = onnxNode->attribute(i);
const auto &attributeName = attributeProto.name();
if (attributeName == "axis") {
DCHECK(attributeProto.type() == ::onnx::AttributeProto_AttributeType_INT) << "Node Attribute ERROR";
axis = attributeProto.i();
}
}
param->axis = axis;
dstOp->main.value = param;
}
REGISTER_CONVERTER(FlattenOnnx, Flatten);