upsample_node.h

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#pragma once
 
#include "sdfg/data_flow/library_nodes/math/tensor/tensor_node.h"
 
#include "sdfg/serializer/json_serializer.h"
 
namespace sdfg {
namespace math {
namespace tensor {
 
inline data_flow::LibraryNodeCode LibraryNodeType_UpsampleBilinear2D("ml::UpsampleBilinear2D");

class UpsampleBilinear2DNode : public TensorNode {
protected:
    std::vector<symbolic::Expression> input_shape_; 
    std::vector<symbolic::Expression> output_shape_; 
    bool align_corners_;
    std::vector<double> scale_factors_; 
 
public:
    static auto constexpr Y_OUTPUT_IDX = 0;
    static auto constexpr X_INPUT_IDX = 1;
 
    UpsampleBilinear2DNode(
        size_t element_id,
        const DebugInfo& debug_info,
        const graph::Vertex vertex,
        data_flow::DataFlowGraph& parent,
        const std::vector<symbolic::Expression>& input_shape,
        const std::vector<symbolic::Expression>& output_shape,
        bool align_corners,
        const std::vector<double>& scale_factors,
        const data_flow::ImplementationType& impl_type = data_flow::ImplementationType_NONE
    );
 
    const std::vector<symbolic::Expression>& input_shape() const {
        return input_shape_;
    }
    const std::vector<symbolic::Expression>& output_shape() const {
        return output_shape_;
    }
    bool align_corners() const {
        return align_corners_;
    }
    const std::vector<double>& scale_factors() const {
        return scale_factors_;
    }
 
    void validate(const Function& function) const override;
 
    symbolic::SymbolSet symbols() const override;
 
    void replace(const symbolic::Expression old_expression, const symbolic::Expression new_expression) override;
 
    void replace(const symbolic::ExpressionMapping& replacements) override;
 
    bool supports_integer_types() const override {
        return false;
    }
 
    passes::LibNodeExpander::ExpandOutcome
    expand(passes::LibNodeExpander::ExpandContext& context, structured_control_flow::Block& block) override;
 
    std::unique_ptr<data_flow::DataFlowNode>
    clone(size_t element_id, const graph::Vertex vertex, data_flow::DataFlowGraph& parent) const override;
 
    std::string toStr() const override;
 
    symbolic::Expression flop() const override;
 
    data_flow::PointerAccessType pointer_access_type(int input_idx) const override;
};

class UpsampleBilinear2DNodeSerializer : public serializer::LibraryNodeSerializer {
public:
    nlohmann::json serialize(const data_flow::LibraryNode& library_node) override;
 
    data_flow::LibraryNode& deserialize(
        const nlohmann::json& j, builder::StructuredSDFGBuilder& builder, structured_control_flow::Block& parent
    ) override;
};
 
} // namespace tensor
} // namespace math
} // namespace sdfg