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CLK/Storage/Tape/Formats/ZXSpectrumTAP.hpp
2024-01-16 23:34:46 -05:00

57 lines
1.1 KiB
C++

//
// SpectrumTAP.hpp
// Clock Signal
//
// Created by Thomas Harte on 19/03/2021.
// Copyright © 2021 Thomas Harte. All rights reserved.
//
#pragma once
#include "../Tape.hpp"
#include "../../FileHolder.hpp"
#include <cstdint>
#include <string>
namespace Storage::Tape {
/*!
Provides a @c Tape containing an Spectrum-format tape image, which contains a series of
header and data blocks.
*/
class ZXSpectrumTAP: public Tape {
public:
/*!
Constructs a @c ZXSpectrumTAP containing content from the file with name @c file_name.
@throws ErrorNotZXSpectrumTAP if this file could not be opened and recognised as a valid Spectrum-format TAP.
*/
ZXSpectrumTAP(const std::string &file_name);
enum {
ErrorNotZXSpectrumTAP
};
private:
Storage::FileHolder file_;
uint16_t block_length_ = 0;
uint8_t block_type_ = 0;
uint8_t data_byte_ = 0;
enum Phase {
PilotTone,
Data,
Gap
} phase_ = Phase::PilotTone;
int distance_into_phase_ = 0;
void read_next_block();
// Implemented to satisfy @c Tape.
bool is_at_end() override;
void virtual_reset() override;
Pulse virtual_get_next_pulse() override;
};
}