mirror of https://github.com/alibaba/MNN.git
57 lines
2.1 KiB
C++
57 lines
2.1 KiB
C++
//
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// GeometryThreshold.cpp
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// MNN
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//
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// Created by MNN on 2020/07/27.
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// Copyright © 2018, Alibaba Group Holding Limited
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//
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#include "geometry/GeometryComputer.hpp"
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#include "core/OpCommonUtils.hpp"
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#include "geometry/GeometryComputerUtils.hpp"
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namespace MNN {
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class GeometryThreshold : public GeometryComputer {
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public:
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virtual bool onCompute(const Op* op, const std::vector<Tensor*>& inputs, const std::vector<Tensor*>& outputs, Context& context, CommandBuffer& res) const override {
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MNN_ASSERT(1 == inputs.size());
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MNN_ASSERT(1 == outputs.size());
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auto input = inputs[0];
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auto output = outputs[0];
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// compare with threshold
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std::shared_ptr<Tensor> compValue(new Tensor);
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{
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auto thresholdConst = context.allocConst(op, {}, halide_type_of<float>());
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thresholdConst->host<float>()[0] = op->main_as_ELU()->alpha();
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compValue->buffer().type = halide_type_of<int>();
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TensorUtils::copyShape(input, compValue.get(), true);
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auto cmd = GeometryComputerUtils::makeBinary(BinaryOpOperation_GREATER, input, thresholdConst.get(), compValue.get());
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res.extras.emplace_back(compValue);
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res.command.emplace_back(std::move(cmd));
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}
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// select
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{
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auto zeroConst = context.allocConst(op, {}, halide_type_of<float>());
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auto oneConst = context.allocConst(op, {}, halide_type_of<float>());
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zeroConst->host<float>()[0] = 0.0;
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oneConst->host<float>()[0] = 1.0;
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flatbuffers::FlatBufferBuilder builder;
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OpBuilder opB(builder);
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opB.add_type(OpType_Select);
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builder.Finish(opB.Finish());
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auto cmd = GeometryComputerUtils::makeCommand(builder, {compValue.get(), oneConst.get(), zeroConst.get()}, {output});
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res.command.emplace_back(std::move(cmd));
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}
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return true;
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}
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};
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static void _create() {
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std::shared_ptr<GeometryComputer> comp(new GeometryThreshold);
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GeometryComputer::registerGeometryComputer(comp, {OpType_Threshold});
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}
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REGISTER_GEOMETRY(GeometryThreshold, _create);
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} // namespace MNN
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