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CLK/Storage/Disk/DiskImage/Formats/G64.hpp
Thomas Harte e384c50580 Switches FileHolder to have a usage much closer to FILE *.
Thereby opens a route for file format implementations such as that appearing for CPC DSK that create an in-memory copy and perform a full rewrite.
2017-11-02 22:32:00 -04:00

53 lines
1.1 KiB
C++

//
// G64.hpp
// Clock Signal
//
// Created by Thomas Harte on 10/07/2016.
// Copyright © 2016 Thomas Harte. All rights reserved.
//
#ifndef G64_hpp
#define G64_hpp
#include "../DiskImage.hpp"
#include "../../../FileHolder.hpp"
namespace Storage {
namespace Disk {
/*!
Provies a @c Disk containing a G64 disk image — a raw but perfectly-clocked GCR stream.
*/
class G64: public DiskImage {
public:
/*!
Construct a @c G64 containing content from the file with name @c file_name.
@throws ErrorCantOpen if this file can't be opened.
@throws ErrorNotG64 if the file doesn't appear to contain a .G64 format image.
@throws ErrorUnknownVersion if this file appears to be a .G64 but has an unrecognised version number.
*/
G64(const char *file_name);
enum {
ErrorCantOpen,
ErrorNotG64,
ErrorUnknownVersion
};
// implemented to satisfy @c Disk
int get_head_position_count() override;
std::shared_ptr<Track> get_track_at_position(Track::Address address) override;
using DiskImage::get_is_read_only;
private:
Storage::FileHolder file_;
uint8_t number_of_tracks_;
uint16_t maximum_track_size_;
};
}
}
#endif /* G64_hpp */