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294e09f275
At least for the purpose of being communicative. I doubt there's much to gain in terms of compiler output — the DiskImageHolder can avoid some virtual lookups but nothing else leaps out.
54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
//
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// AppleDSK.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 27/04/2018.
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// Copyright 2018 Thomas Harte. All rights reserved.
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//
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#ifndef AppleDSK_hpp
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#define AppleDSK_hpp
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#include "../DiskImage.hpp"
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#include "../../../FileHolder.hpp"
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#include <string>
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namespace Storage {
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namespace Disk {
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/*!
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Provides a @c DiskImage containing an Apple DSK disk image: a representation of sector contents,
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implicitly numbered and located.
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*/
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class AppleDSK: public DiskImage {
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public:
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/*!
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Construct an @c AppleDSK containing content from the file with name @c file_name.
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@throws Storage::FileHolder::Error::CantOpen if this file can't be opened.
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@throws Error::InvalidFormat if the file doesn't appear to contain a .G64 format image.
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*/
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AppleDSK(const std::string &file_name);
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// Implemented to satisfy @c DiskImage.
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HeadPosition get_maximum_head_position() final;
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std::shared_ptr<Track> get_track_at_position(Track::Address address) final;
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void set_tracks(const std::map<Track::Address, std::shared_ptr<Track>> &tracks) final;
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bool get_is_read_only() final;
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private:
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Storage::FileHolder file_;
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int sectors_per_track_ = 16;
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bool is_prodos_ = false;
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long file_offset(Track::Address address);
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size_t logical_sector_for_physical_sector(size_t physical);
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};
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}
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}
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#endif /* AppleDSK_hpp */
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