MNN/source/shape/ShapeUnique.cpp

58 lines
2.1 KiB
C++

//
// ShapeSetDiff1D.cpp
// MNN
//
// Created by MNN on 2021/06/24.
// Copyright © 2018, Alibaba Group Holding Limited
//
#include <unordered_set>
#include "shape/SizeComputer.hpp"
#include "core/Macro.h"
namespace MNN {
class ShapeUnique : public SizeComputer {
virtual bool onComputeSize(const MNN::Op* op, const std::vector<Tensor*>& inputs,
const std::vector<Tensor*>& outputs) const override {
MNN_ASSERT(1 == inputs.size());
if (inputs[0]->getType().bytes() != 4) {
return false;
}
auto& ib = inputs[0]->buffer();
auto& ob = outputs[0]->buffer();
ob.dimensions = 1;
TensorUtils::getDescribe(outputs[0])->dimensionFormat = TensorUtils::getDescribe(inputs[0])->dimensionFormat;
ob.type = ib.type;
if (inputs[0]->host<int32_t>() == nullptr) {
return false;
}
std::unordered_set<int> values;
auto eleSize = inputs[0]->elementSize();
for (int i = 0; i < eleSize; i++) {
values.insert(inputs[0]->host<int32_t>()[i]);
}
ob.dim[0].extent = values.size();
if (outputs.size() > 1) {
TensorUtils::copyShape(outputs[0], outputs[1], true);
outputs[1]->buffer().type = halide_type_of<int>();
}
if (outputs.size() > 2) {
outputs[2]->buffer().dimensions = 1;
outputs[2]->buffer().dim[0].extent = eleSize;
TensorUtils::getDescribe(outputs[2])->dimensionFormat = TensorUtils::getDescribe(inputs[0])->dimensionFormat;
outputs[2]->buffer().type = halide_type_of<int>();
}
if (outputs.size() > 3) {
outputs[3]->buffer().dimensions = 1;
outputs[3]->buffer().dim[0].extent = (int)values.size();
TensorUtils::getDescribe(outputs[3])->dimensionFormat = TensorUtils::getDescribe(inputs[0])->dimensionFormat;
outputs[3]->buffer().type = halide_type_of<int>();
}
return true;
}
};
REGISTER_SHAPE_INPUTS(ShapeUnique, OpType_Unique, std::vector<int>({0}));
} // namespace MNN