mirror of
https://github.com/TomHarte/CLK.git
synced 2024-12-30 19:30:17 +00:00
90 lines
2.1 KiB
C++
90 lines
2.1 KiB
C++
//
|
|
// TZX.hpp
|
|
// Clock Signal
|
|
//
|
|
// Created by Thomas Harte on 16/07/2017.
|
|
// Copyright © 2017 Thomas Harte. All rights reserved.
|
|
//
|
|
|
|
#ifndef TZX_hpp
|
|
#define TZX_hpp
|
|
|
|
#include "../PulseQueuedTape.hpp"
|
|
#include "../../FileHolder.hpp"
|
|
|
|
namespace Storage {
|
|
namespace Tape {
|
|
|
|
/*!
|
|
Provides a @c Tape containing a CSW tape image, which is a compressed 1-bit sampling.
|
|
*/
|
|
class TZX: public PulseQueuedTape, public Storage::FileHolder {
|
|
public:
|
|
/*!
|
|
Constructs a @c TZX containing content from the file with name @c file_name.
|
|
|
|
@throws ErrorNotTZX if this file could not be opened and recognised as a valid TZX file.
|
|
*/
|
|
TZX(const char *file_name);
|
|
|
|
enum {
|
|
ErrorNotTZX
|
|
};
|
|
|
|
private:
|
|
void virtual_reset();
|
|
void get_next_pulses();
|
|
|
|
bool current_level_;
|
|
|
|
void get_standard_speed_data_block();
|
|
void get_turbo_speed_data_block();
|
|
void get_pure_tone_data_block();
|
|
void get_pulse_sequence();
|
|
void get_pure_data_block();
|
|
void get_generalised_data_block();
|
|
void get_pause();
|
|
|
|
void get_hardware_type();
|
|
|
|
void ignore_group_start();
|
|
void ignore_group_end();
|
|
void ignore_jump_to_block();
|
|
void ignore_loop_start();
|
|
void ignore_loop_end();
|
|
void ignore_call_sequence();
|
|
void ignore_return_from_sequence();
|
|
void ignore_select_block();
|
|
void ignore_text_description();
|
|
void ignore_message_block();
|
|
|
|
struct Data {
|
|
unsigned int length_of_zero_bit_pulse;
|
|
unsigned int length_of_one_bit_pulse;
|
|
unsigned int number_of_bits_in_final_byte;
|
|
unsigned int pause_after_block;
|
|
long data_length;
|
|
};
|
|
|
|
struct DataBlock {
|
|
unsigned int length_of_pilot_pulse;
|
|
unsigned int length_of_sync_first_pulse;
|
|
unsigned int length_of_sync_second_pulse;
|
|
unsigned int length_of_pilot_tone;
|
|
Data data;
|
|
};
|
|
|
|
void get_generalised_segment(uint32_t output_symbols, uint8_t max_pulses_per_symbol, uint8_t number_of_symbols, bool is_data);
|
|
void get_data_block(const DataBlock &);
|
|
void get_data(const Data &);
|
|
|
|
void post_pulse(unsigned int length);
|
|
void post_gap(unsigned int milliseconds);
|
|
|
|
void post_pulse(const Storage::Time &time);
|
|
};
|
|
|
|
}
|
|
}
|
|
#endif /* TZX_hpp */
|