CassetteImage.hh

Go to the documentation of this file.

#ifndef CASSETTEIMAGE_HH
#define CASSETTEIMAGE_HH
 
#include "EmuTime.hh"
#include "sha1.hh"
#include <cstdint>
#include <span>
#include <string>
 
namespace openmsx {
 
class CassetteImage
{
public:
        enum FileType { ASCII, BINARY, BASIC, UNKNOWN };
 
        virtual ~CassetteImage() = default;
        [[nodiscard]] virtual int16_t getSampleAt(EmuTime::param time) const = 0;
        [[nodiscard]] virtual EmuTime getEndTime() const = 0;
        [[nodiscard]] virtual unsigned getFrequency() const = 0;
        virtual void fillBuffer(unsigned pos, std::span<float*, 1> bufs, unsigned num) const = 0;
        [[nodiscard]] virtual float getAmplificationFactorImpl() const = 0;
 
        [[nodiscard]] FileType getFirstFileType() const { return firstFileType; }
        [[nodiscard]] std::string getFirstFileTypeAsString() const;
 
        [[nodiscard]] const Sha1Sum& getSha1Sum() const;
 
protected:
        CassetteImage() = default;
        void setFirstFileType(FileType type) { firstFileType = type; }
        void setSha1Sum(const Sha1Sum& sha1sum);
 
private:
        FileType firstFileType = UNKNOWN;
        Sha1Sum sha1sum;
};
 
} // namespace openmsx
 
#endif