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69 lines
1.0 KiB
C++
69 lines
1.0 KiB
C++
//
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// TapeUEF.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 18/01/2016.
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// Copyright © 2016 Thomas Harte. All rights reserved.
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//
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#ifndef TapeUEF_hpp
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#define TapeUEF_hpp
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#include "../Tape.hpp"
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#include <zlib.h>
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#include <stdint.h>
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namespace Storage {
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class UEF : public Tape {
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public:
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UEF(const char *file_name);
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~UEF();
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Pulse get_next_pulse();
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void reset();
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enum {
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ErrorNotUEF
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};
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private:
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gzFile _file;
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unsigned int _time_base;
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z_off_t _start_of_next_chunk;
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uint16_t _chunk_id;
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uint32_t _chunk_length;
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union {
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struct {
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uint8_t current_byte;
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uint32_t position;
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} _implicit_data_chunk;
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struct {
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uint8_t current_byte;
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uint32_t position;
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} _explicit_data_chunk;
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};
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uint8_t _current_byte;
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uint32_t _chunk_position;
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bool _current_bit;
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uint32_t _bit_position;
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Time _chunk_duration;
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bool _first_is_pulse;
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bool _last_is_pulse;
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void find_next_tape_chunk();
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bool get_next_bit();
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bool chunk_is_finished();
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};
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}
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#endif /* TapeUEF_hpp */
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