MNN/source/geometry/GeometryReshape.cpp

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2020-11-05 16:41:56 +08:00
//
// GeometryReshape.cpp
// MNN
//
// Created by MNN on 2020/04/03.
// Copyright © 2018, Alibaba Group Holding Limited
//
#include "ConvertUtils.hpp"
#include "geometry/GeometryComputer.hpp"
namespace MNN {
class GeometryReshape : public GeometryComputer {
public:
virtual bool onCompute(const Op* op, const std::vector<Tensor*>& inputs, const std::vector<Tensor*>& outputs,
Context& context, CommandBuffer& res) const override {
auto input = inputs[0];
auto output = outputs[0];
auto inputDes = TensorUtils::getDescribe(input);
auto outputDes = TensorUtils::getDescribe(output);
if (TensorUtils::getDescribe(input)->dimensionFormat == MNN_DATA_FORMAT_NC4HW4) {
auto midFormat = op->main_as_Reshape()->dimType();
if (MNN_DATA_FORMAT_NHWC == midFormat) {
// Convert to NHWC, reshape, and then convert to NC4HW4
std::shared_ptr<Tensor> nhwc(new Tensor);
TensorUtils::setupTensorInfo(input, nhwc.get(), MNN_DATA_FORMAT_NHWC);
ConvertUtils::compute(input, nhwc.get(), res);
res.extras.emplace_back(nhwc);
std::shared_ptr<Tensor> nhwc2(new Tensor);
TensorUtils::setupTensorInfo(output, nhwc2.get(), MNN_DATA_FORMAT_NHWC);
res.extras.emplace_back(nhwc2);
{
auto inputSlice = TensorUtils::getDescribe(nhwc.get())->regions;
if (inputSlice.empty()) {
// Create Full Refence
Tensor::InsideDescribe::Region totalSlice = TensorUtils::makeFullSlice(nhwc.get());
inputSlice.emplace_back(std::move(totalSlice));
}
TensorUtils::getDescribe(nhwc2.get())->regions = std::move(inputSlice);
TensorUtils::getDescribe(nhwc2.get())->memoryType = Tensor::InsideDescribe::MEMORY_VIRTUAL;
}
ConvertUtils::compute(nhwc2.get(), output, res);
return true;
}
}
auto inputSlice = inputDes->regions;
if (inputSlice.empty()) {
// Create Full Refence
Tensor::InsideDescribe::Region totalSlice = TensorUtils::makeFullSlice(input);
inputSlice.emplace_back(std::move(totalSlice));
}
outputDes->regions = std::move(inputSlice);
outputDes->memoryType = Tensor::InsideDescribe::MEMORY_VIRTUAL;
return true;
}
};
class SingleGeometryComputer : public GeometryComputer {
public:
virtual bool onCompute(const Op* op, const std::vector<Tensor*>& inputs, const std::vector<Tensor*>& outputs,
Context& context, CommandBuffer& res) const override {
auto input = inputs[0];
auto output = outputs[0];
auto inputDes = TensorUtils::getDescribe(input);
auto outputDes = TensorUtils::getDescribe(output);
auto inputSlice = inputDes->regions;
if (inputSlice.empty()) {
// Create Full Refence
Tensor::InsideDescribe::Region totalSlice = TensorUtils::makeFullSlice(input);
inputSlice.emplace_back(std::move(totalSlice));
}
outputDes->regions = std::move(inputSlice);
outputDes->memoryType = Tensor::InsideDescribe::MEMORY_VIRTUAL;
return true;
}
};
static void _create() {
std::shared_ptr<GeometryComputer> comp(new GeometryReshape);
GeometryComputer::registerGeometryComputer(comp, {OpType_Reshape});
std::shared_ptr<GeometryComputer> _comp(new SingleGeometryComputer);
GeometryComputer::registerGeometryComputer(_comp, {OpType_Squeeze, OpType_Unsqueeze, OpType_ExpandDims, OpType_Flatten, OpType_QuantizedReshape});
}
REGISTER_GEOMETRY(GeometryReshape, _create);
}; // namespace MNN