mirror of https://github.com/alibaba/MNN.git
55 lines
1.5 KiB
C++
55 lines
1.5 KiB
C++
//
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// CPULinSpace.cpp
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// MNN
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//
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// Created by MNN on 2019/12/11.
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// Copyright © 2018, Alibaba Group Holding Limited
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//
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#include "backend/cpu/CPULinSpace.hpp"
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#include "backend/cpu/CPUBackend.hpp"
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namespace MNN {
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ErrorCode CPULinSpace::onExecute(const std::vector<Tensor*>& inputs, const std::vector<Tensor*>& outputs) {
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MNN_ASSERT(inputs.size() == 3);
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MNN_ASSERT(outputs.size() == 1);
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const float start = inputs[0]->host<float>()[0];
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const float stop = inputs[1]->host<float>()[0];
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const int num = inputs[2]->host<int32_t>()[0];
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MNN_ASSERT(num > 0);
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float* outputData = outputs[0]->host<float>();
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if (num == 1) {
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outputData[0] = start;
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return NO_ERROR;
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}
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if (num == 2) {
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outputData[0] = start;
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outputData[1] = stop;
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return NO_ERROR;
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}
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// make sure that start with the first and end with the last.
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outputData[0] = start;
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outputData[num - 1] = stop;
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const float step = (stop - start) / (num - 1);
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for (int i = 1; i < num - 1; ++i) {
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outputData[i] = start + i * step;
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}
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return NO_ERROR;
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}
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class CPULinSpaceCreator : public CPUBackend::Creator {
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public:
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virtual Execution* onCreate(const std::vector<Tensor*>& inputs, const std::vector<Tensor*>& outputs,
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const MNN::Op* op, Backend* backend) const {
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return new CPULinSpace(backend);
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}
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};
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REGISTER_CPU_OP_CREATOR(CPULinSpaceCreator, OpType_LinSpace);
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} // namespace MNN
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