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Adds code to deal with sector-free tracks.

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This commit is contained in:
Thomas Harte 2020-01-09 21:50:32 -05:00
parent b4befd57a9
commit 64517a02b7
1 changed files with 26 additions and 0 deletions

26
Storage/Disk/DiskImage/Formats/STX.cpp

@ -55,6 +55,24 @@ class TrackConstructor {
}
std::shared_ptr<PCMTrack> get_track() {
// If no contents are supplied, return an unformatted track.
if(sectors_.empty() && track_data_.empty()) {
return nullptr;
}
// If no sectors are on this track, just encode the track data. STX allows speed
// changes and fuzzy bits in sectors only.
if(sectors_.empty()) {
PCMSegment segment;
std::unique_ptr<Storage::Encodings::MFM::Encoder> encoder = Storage::Encodings::MFM::GetMFMEncoder(segment.data);
for(auto c: track_data_) {
encoder->add_byte(c);
}
return std::make_shared<PCMTrack>(segment);
}
// Otherwise, seek to encode the sectors, using the track data to
// fill in the gaps (if provided).
std::unique_ptr<Storage::Encodings::MFM::Encoder> encoder;
std::unique_ptr<PCMSegment> segment;
@ -89,6 +107,14 @@ class TrackConstructor {
encoder->add_byte(0x4e);
}
// while(segment->data.size() < track_size_ * 16) {
// encoder->add_byte(0x4e);
// }
while(segment->data.size() < 6250 * 16) {
encoder->add_byte(0x4e);
}
return std::make_shared<PCMTrack>(*segment);
}