mirror of https://github.com/alibaba/MNN.git
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
//
|
|
// ShapeWhere.cpp
|
|
// MNN
|
|
//
|
|
// Created by MNN on 2019/01/10.
|
|
// Copyright © 2018, Alibaba Group Holding Limited
|
|
//
|
|
|
|
#include "shape/SizeComputer.hpp"
|
|
#include "core/Macro.h"
|
|
|
|
namespace MNN {
|
|
#define MNN_WHERE_OLD_VERSION
|
|
|
|
template <typename T>
|
|
int _count(Tensor* t) {
|
|
const T* ptr = t->host<T>();
|
|
int count = 0;
|
|
for (int i = 0; i < t->elementSize(); i++) {
|
|
count += (ptr[i] > 0);
|
|
}
|
|
return count;
|
|
}
|
|
|
|
class WhereSizeComputer : 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());
|
|
MNN_ASSERT(1 == outputs.size());
|
|
auto& ib = inputs[0]->buffer();
|
|
auto& ob = outputs[0]->buffer();
|
|
ob.dimensions = 2;
|
|
ob.dim[0].extent = inputs[0]->elementSize();
|
|
ob.dim[1].extent = ib.dimensions;
|
|
TensorUtils::getDescribe(outputs[0])->dimensionFormat = TensorUtils::getDescribe(inputs[0])->dimensionFormat;
|
|
outputs[0]->buffer().type = halide_type_of<int32_t>();
|
|
auto param = op->main_as_Extra();
|
|
if (param == nullptr) {
|
|
// support old version
|
|
return true;
|
|
}
|
|
// For zeroshape input
|
|
if (nullptr == inputs[0]->host<void>()) {
|
|
ob.dim[0].extent = 0;
|
|
return true;
|
|
}
|
|
int count = 0;
|
|
if (ib.type == halide_type_of<float>()) {
|
|
count = _count<float>(inputs[0]);
|
|
} else if (ib.type == halide_type_of<int32_t>()) {
|
|
count = _count<int32_t>(inputs[0]);
|
|
} else if (ib.type == halide_type_of<uint8_t>()) {
|
|
count = _count<uint8_t>(inputs[0]);
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
if (count > 0) {
|
|
ob.dim[0].extent = count;
|
|
} else {
|
|
// When no true element is found, the second demision should be kept, other than squeezed.
|
|
ob.dimensions = 2;
|
|
ob.dim[0].extent = 0;
|
|
ob.dim[1].extent = ib.dimensions;
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
|
|
REGISTER_SHAPE_INPUTS(WhereSizeComputer, OpType_Where, std::vector<int>{0});
|
|
} // namespace MNN
|