hart_envelope.hpp

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#pragma once
 
#include <memory>
#include <vector>
 
namespace hart
{
 
/// @defgroup Envelopes Envelopes
/// @brief DSP Parameter automation
 
/// @brief Represents an Envelope curve for DSP parameters
class Envelope
{
public:
    virtual ~Envelope() = default;
    virtual void renderNextBlock (size_t blockSize, std::vector<double>& valuesOutput) = 0;
    virtual void prepare (double sampleRateHz, size_t maxBlockSizeFrames) = 0;
    virtual void reset() = 0;
    virtual std::unique_ptr<Envelope> copy() const = 0;
 
    std::vector<double> renderNextBlock (size_t blockSize)
    {
        std::vector<double> values (blockSize);
        renderNextBlock (blockSize, values);
        return values;
    }
};
 
}  // namespace hart
 
/// @private
#define HART_ENVELOPE_DECLARE_ALIASES_FOR(ClassName)
    namespace aliases_float{
        using ClassName = hart::ClassName;
    }
    namespace aliases_double{
        using ClassName = hart::ClassName;
    }