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62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
//
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// Parser.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 24/09/2017.
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// Copyright 2017 Thomas Harte. All rights reserved.
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//
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#ifndef Parser_hpp
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#define Parser_hpp
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#include "Constants.hpp"
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#include "Sector.hpp"
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#include "SegmentParser.hpp"
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#include "../../Track/Track.hpp"
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#include "../../Drive.hpp"
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#include <optional>
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namespace Storage::Encodings::MFM {
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/*!
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Provides a mechanism for collecting sectors from a disk.
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*/
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class Parser {
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public:
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/// Creates a parser that will only attempt to interpret the underlying disk as being of @c density.
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Parser(Density density, const std::shared_ptr<Storage::Disk::Disk> &disk);
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/// Creates a parser that will automatically try all available FM and MFM densities to try to extract sectors.
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Parser(const std::shared_ptr<Storage::Disk::Disk> &disk);
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/*!
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Seeks to the physical track at @c head and @c track. Searches on it for a sector
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with logical address @c sector.
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@returns a sector if one was found; @c nullptr otherwise.
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*/
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const Storage::Encodings::MFM::Sector *sector(int head, int track, uint8_t sector);
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// TODO: set_sector.
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private:
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std::shared_ptr<Storage::Disk::Disk> disk_;
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std::optional<Density> density_;
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void install_track(const Storage::Disk::Track::Address &address);
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static SectorMap parse_track(const Storage::Disk::Track &track, Density density);
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static void append(const SectorMap &source, std::map<int, Sector> &destination);
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// Maps from a track address, i.e. head and position, to a map from
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// sector IDs to sectors.
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std::map<
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Storage::Disk::Track::Address,
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std::map<int, Storage::Encodings::MFM::Sector>
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> sectors_by_address_by_track_;
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};
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}
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#endif /* Parser_hpp */
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