wehub-resource-sync
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
//
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// RoiAlignGrad.cpp
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// MNN
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//
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// Created by MNN on 2022/12/14.
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// Copyright © 2018, Alibaba Group Holding Limited
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//
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#include "OpGrad.hpp"
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#include "core/Macro.h"
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using namespace std;
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namespace MNN {
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using namespace MNN::Express;
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class RoiAlignGrad : public OpGrad {
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public:
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virtual std::vector<Express::VARP> onGrad(Express::EXPRP expr, const std::vector<Express::VARP>& backwardOutput) override {
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std::vector<Express::VARP> res(1, nullptr);
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auto input = expr->inputs()[0];
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auto roi = expr->inputs()[1];
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std::unique_ptr<OpT> forwardOp(expr->get()->UnPack());
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auto param = forwardOp->main.AsRoiParameters();
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int pooledHeight = param->pooledHeight;
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int pooledWidth = param->pooledWidth;
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auto spatialScale = param->spatialScale;
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int samplingRatio = param->samplingRatio;
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bool aligned = param->aligned;
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auto poolType = param->poolType;
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res[0] = _ROIAlign(input, roi, pooledHeight, pooledWidth, spatialScale, samplingRatio, aligned, PoolingMode(poolType), true, _Convert(backwardOutput[0], NC4HW4));
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res[0] = _Convert(res[0], input->getInfo()->order);
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return res;
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}
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};
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static void _create() {
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static RoiAlignGrad _c;
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OpGrad::insert(OpType_ROIAlign, &_c);
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}
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REGISTER_GRAD(RoiAlignGrad_cpp, _create);
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};
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