Component.h

/******************************************************************************
DSPatch - The Refreshingly Simple C++ Dataflow Framework
Copyright (c) 2023, Marcus Tomlinson
 
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#pragma once
 
#include <dspatch/SignalBus.h>
 
#include <string>
#include <vector>
 
namespace DSPatch
{
 
namespace internal
{
class Component;
class ComponentThread;
}  // namespace internal
 
 
class DLLEXPORT Component
{
public:
    NONCOPYABLE( Component );
 
    using SPtr = std::shared_ptr<Component>;
    using SCPtr = std::shared_ptr<const Component>;
 
    enum class ProcessOrder
    {
        InOrder,
        OutOfOrder
    };
 
    enum class TickMode
    {
        Series,
        Parallel
    };
 
    Component( ProcessOrder processOrder = ProcessOrder::InOrder );
    virtual ~Component();
 
    bool ConnectInput( Component::SPtr const& fromComponent, int fromOutput, int toInput );
 
    void DisconnectInput( int inputNo );
    void DisconnectInput( Component::SCPtr const& fromComponent );
    void DisconnectAllInputs();
 
    int GetInputCount() const;
    int GetOutputCount() const;
 
    std::string GetInputName( int inputNo ) const;
    std::string GetOutputName( int outputNo ) const;
 
    void SetBufferCount( int bufferCount );
    int GetBufferCount() const;
 
    bool Tick( TickMode mode = TickMode::Series, int bufferNo = 0 );
    void Reset( int bufferNo = 0 );
 
protected:
    virtual void Process_( SignalBus&, SignalBus& ) = 0;
 
    void SetInputCount_( int inputCount, std::vector<std::string> const& inputNames = {} );
    void SetOutputCount_( int outputCount, std::vector<std::string> const& outputNames = {} );
 
private:
    friend class internal::ComponentThread;
    void _DoTick( Component::TickMode mode, int bufferNo );
 
    internal::Component* p;
};
 
}  // namespace DSPatch