private void ReadCatalogue(object sender, EventArgs e)
{
if (!ReadParameters(false))
{
return;
}
SetProcessing(true);
BackgroundWorker worker = new BackgroundWorker();
Log.Info?.Out($"Чтение каталога. DataRate: {Params.DataRate}");
int successfullyRead = 0;
DiskReaderParams npars = new DiskReaderParams()
{
FirstSectorNum = 0,
LastSectorNum = 9,
DataRate = Params.DataRate,
Image = new TrDosImage(9, null),
SectorReadAttempts = Params.SectorReadAttempts,
Side = DiskSide.Both,
CurrentTrackFormat = new TrackFormat(TrackFormatName.TrDosSequential),
ReadMode = ReadMode.Standard,
TrackLayoutAutodetect = false,
UpperSideHeadAutodetect = false,
};
diskReader = new DiskReader()
{
Params = npars
};
worker.DoWork += (object sndr, DoWorkEventArgs ee) =>
{
try
{
if (!diskReader.OpenDriver())
{
return;
}
successfullyRead = diskReader.ReadForward();
diskReader.CloseDriver();
Log.Info?.Out($"Чтение каталога завершено. Успешно прочитанных секторов: {successfullyRead}");
}
catch (Exception ex)
{
Log.Error?.Out($"Исключение при чтении диска: {ex.Message} | StackTrace: {ex.StackTrace}");
}
};
worker.RunWorkerCompleted += (object sender1, RunWorkerCompletedEventArgs ee) =>
{
SetProcessing(false);
if (MainForm.CatalogueForm == null)
{
MainForm.CatalogueForm = new CatalogueForm();
}
if (successfullyRead > 1)
{
MainForm.CatalogueForm.ShowForm(diskReader.Params.Image as TrDosImage, false);
}
};
worker.RunWorkerAsync();
}
public IsDosReader(Control parent, DiskReaderParams dparams) : base(parent, 1024, 5, dparams)
{
upperSidePanel.Visible = false;
readModePanel.Visible = false;
map.FileL.Visible = false;
map.FileLV.Visible = false;
map.ExtenstionLV.Visible = false;
readCatalogue.Visible = false;
showCatalogue.Visible = false;
showCatFromTrack.Visible = false;
Image = new IsDosImage(160 * SectorsOnTrack, map)
{
Name = ""
};
map.Image = Image;
stats.Image = Image;
map.Repaint();
stats.Repaint();
loadImage.Click += LoadImage;
mergeImage.Click += MergeImage;
newImage.Click += NewImage;
saveImage.Click += SaveImage;
readForward.Click += ReadForward;
readBackward.Click += ReadBackward;
readRandomSectors.Click += ReadRandomSectors;
}
public object Clone()
{
DiskReaderParams r = (DiskReaderParams)MemberwiseClone();
r.CurrentTrackFormat = (TrackFormat)CurrentTrackFormat.Clone();
return(r);
}
public TrDosReader(Control parent, DiskReaderParams dparams) : base(parent, 256, 16, dparams)
{
Image = new TrDosImage(160 * SectorsOnTrack, map)
{
Name = ""
};
map.Image = Image;
stats.Image = Image;
map.Repaint();
stats.Repaint();
saveImage.Click += SaveImage;
readCatalogue.Click += ReadCatalogue;
showCatalogue.Click += ShowCatalogue;
showCatFromTrack.Click += ShowCatFromTrack;
loadImage.Click += LoadImage;
mergeImage.Click += MergeImage;
newImage.Click += NewImage;
readForward.Click += ReadForward;
readBackward.Click += ReadBackward;
readRandomSectors.Click += ReadRandomSectors;
}
public unsafe void ReadTrack(int track, DiskReaderParams pars)
{
// Массив sectors:
// D0 - Признак обработанного сектора при чтении трека в одной попытке. Обнуляется перед каждой попыткой чтения трека.
// D1 - Используется в блоке чтения заголовков. Отмечаются сектора заголовки которых были найдены. Вне этого блока не используется.
// D2 - Запрет чтения сектора из-за того что его заголовок был прочитан SectorReadAttempts раз и не был найден. Параметр сохраняется между попытками чтения трека.
int *sectors = stackalloc int[pars.SectorsOnTrack];
for (int i = 0; i < pars.SectorsOnTrack; i++)
{
sectors[i] = 0;
}
bool formatScanned = false;
bool headScanned = false;
bool trackScanned = false;
bool wasCorrectHead = false;
bool missedHeaders = false;
for (int attempt = 0; attempt < pars.SectorReadAttempts; attempt++)
{
if (Aborted)
{
return;
}
for (int i = 0; i < pars.SectorsOnTrack; i++)
{
sectors[i] &= ~1;
}
bool wasError = false;
double timeAfterSync = 0;
trackTimer.Restart();
int skip = 0;
int processedSectors = 0;
int sectorCounter = 0;
SectorInfo diskSector;
while (processedSectors < pars.SectorsOnTrack)
{
bool sync = false;
if (pars.ReadMode == ReadMode.Fast && pars.CurrentTrackFormat.IsSync)
{
bool gcsError;
diskSector = pars.CurrentTrackFormat.GetClosestSector(track, 0, skip, out timeAfterSync, out gcsError);
sync = true;
// Переключение в стандартный режим чтения в случае если функция GetClosestSector отработала с ошибкой.
// Такое было у одного из пользователей и причина ошибки непонятна.
if (gcsError)
{
pars.ReadMode = ReadMode.Standard;
}
}
else
{
diskSector = pars.Image.StandardFormat.Layout.Data[sectorCounter];
sectorCounter++;
}
int sectorIndex = pars.Image.StandardFormat.FindSectorIndex(diskSector.SectorNumber);
int diskSectorNum = track * Params.SectorsOnTrack + sectorIndex;
skip++;
if ((sectors[sectorIndex] & 1) != 0)
{
continue;
}
sectors[sectorIndex] |= 1;
processedSectors++;
if ((sectors[sectorIndex] & 4) != 0)
{
continue;
}
if (diskSectorNum < pars.FirstSectorNum || diskSectorNum >= pars.LastSectorNum)
{
continue;
}
if (pars.Image.Sectors[diskSectorNum] == SectorProcessResult.Good)
{
continue;
}
bool badWritten = pars.Image.Sectors[diskSectorNum] == SectorProcessResult.Bad;
skip = 0;
pars.Image.Map?.ClearHighlight(MapCell.Processing);
pars.Image.Map?.MarkAsProcessing(diskSectorNum);
WinApi.RtlZeroMemory(memoryHandle, (UIntPtr)diskSector.SizeBytes);
int error = Driver.ReadSector(DriverHandle, memoryHandle, track, diskSector.SectorNumber, pars.UpperSideHead, diskSector.SizeCode);
double curTimeSinceSync = pars.CurrentTrackFormat.Timer.ElapsedMs;
if (error == 0)
{
pars.CurrentTrackFormat.Sync(track, diskSector.SectorNumber);
pars.Image.WriteGoodSectors(diskSectorNum, memoryHandle, 1);
wasCorrectHead = true;
if (Aborted)
{
return;
}
// Проверка несовпадения расположения секторов с заданным. Работает только для TR-DOS.
if (pars.ReadMode == ReadMode.Fast &&
pars.TrackLayoutAutodetect &&
sync &&
!formatScanned &&
!missedHeaders &&
curTimeSinceSync < 2 * pars.CurrentTrackFormat.SpinTime)
{
double remainderTime = curTimeSinceSync;
for (int t = 0; remainderTime > 0 && t < 20; remainderTime -= pars.CurrentTrackFormat.SpinTime, t++)
{
// 6 - половина времени сектора TR-DOS (около 12 мс).
if (Math.Abs(remainderTime - timeAfterSync) <= 6)
{
goto skip;
}
}
Log.Trace?.Out($"Несовпадение расположения секторов. Calculated Time: {GP.ToString(timeAfterSync, 2)} | Real Time: {GP.ToString(curTimeSinceSync, 2)}");
formatScanned = true;
bool scanResult = ScanFormat(workTrackFormat, track, true);
if (Aborted)
{
return;
}
if (scanResult)
{
Log.Trace?.Out($"Формат трека {track}: {workTrackFormat.FormatName} | {workTrackFormat.Layout.Cnt} sectors | {workTrackFormat.ToStringAsSectorArray()}");
if (workTrackFormat.FormatName <= TrackFormatName.TrDosGeneric)
{
pars.CurrentTrackFormat.Assign(workTrackFormat);
}
}
//pars.Image.Map?.ClearHighlight(MapCell.Scanning);
//findex = pars.TrackFormat.GetNextSectorIndex(track);
skip :;
}
}
else
{
wasError = true;
bool writeBad = true;
bool noHeader = error == 21 || error == 1112 || error == 1122 || (error == 27 /* && curTimeSinceSync > pars.CurrentTrackFormat.SpinTime*/);
if (noHeader)
{
Make30HeadPositionings(error, track);
// Проверка параметра Head верхней стороны.
bool scanWholeTrack = true;
int scanHeadResult = 0;
if (track % 2 == 1 && !headScanned && !wasCorrectHead && pars.UpperSideHeadAutodetect)
{
headScanned = true;
UpperSideHead head = pars.UpperSideHead;
scanHeadResult = ScanHeadParameter(ref head, track, pars.CurrentTrackFormat);
if (scanHeadResult == 0)
{
if (head != pars.UpperSideHead)
{
Log.Trace?.Out($"Параметр Head верхней стороны для трека {track} определен: {(int)head}");
pars.UpperSideHead = head;
writeBad = false;
sectors[sectorIndex] = 0;
processedSectors--;
scanWholeTrack = false;
}
else
{
Log.Trace?.Out($"Параметр Head верхней стороны для трека {track} определен и совпадает с предыдущим: {(int)head}");
}
}
else
{
Log.Trace?.Out($"Параметр Head верхней стороны для трека {track} определить не удалось.");
}
}
// Чтение неформатных областей.
// Если встретился NoHeader, то предполагается что на этом треке может быть еще много случаев NoHeader,
// поэтому они проверяются сканированием трека целиком. Это происходит быстрее, чем если пытаться читать их по-отдельности.
if (scanWholeTrack && !trackScanned)
{
int sec0Num = Math.Max(track * pars.SectorsOnTrack, pars.FirstSectorNum);
int sec0NtNum = Math.Min((track + 1) * pars.SectorsOnTrack, pars.LastSectorNum);
// sectorsToCheck - число секторов которые надо проверить на предмет отсутствия заголовков.
// Если подозреваемый сектор только один (т.е. только что прочитанный) и число попыток чтения 1, то sectorsToCheck после цикла будет нулём.
bool ignoreCurSector = pars.SectorReadAttempts == 1;
writeBad = ignoreCurSector;
int sectorsToCheck = ignoreCurSector ? 0 : 1; // Учет только что обработанного сектора.
// Далее к sectorsToCheck добавляются только необработанные сектора.
for (int sn = sec0Num, si = sn - track * pars.SectorsOnTrack; sn < sec0NtNum; sn++, si++)
{
if (pars.Image.Sectors[sn] != SectorProcessResult.Good && (sectors[si] & 1) == 0)
{
sectorsToCheck++;
}
}
if (sectorsToCheck > 0)
{
trackScanned = true;
int foundHeaders = 0;
bool scanResult = false;
int maxExtraSectors = 0;
if (!ignoreCurSector)
{
sectors[sectorIndex] &= ~1;
}
int attempts = !ignoreCurSector && sectorsToCheck == 1 ? pars.SectorReadAttempts - 1 : pars.SectorReadAttempts;
for (int attemptnh = 0; attemptnh < attempts; attemptnh++)
{
scanResult = false;
if (scanHeadResult == 1 && attemptnh == 0)
{
workTrackFormat.Layout.Cnt = 0;
}
else
{
scanResult = ScanFormat(workTrackFormat, track, true);
}
if (workTrackFormat.Layout.Cnt == 0)
{
Log.Info?.Out($"На треке {track} заголовки не найдены.");
}
else
{
Log.Trace?.Out($"Формат трека {track}: {workTrackFormat.FormatName} | {workTrackFormat.Layout.Cnt} sectors | {workTrackFormat.ToStringAsSectorArray()}");
}
for (int sn = sec0Num, si = sn - track * pars.SectorsOnTrack; sn < sec0NtNum; sn++, si++)
{
if (pars.Image.Sectors[sn] == SectorProcessResult.Good || (sectors[si] & 1) == 1 || (sectors[si] & 2) != 0)
{
continue;
}
int dSector = pars.Image.StandardFormat.Layout.Data[si].SectorNumber;
int sindex = workTrackFormat.FindSectorIndex(dSector);
int head = pars.UpperSideHead == UpperSideHead.Head1 ? track & 1 : 0;
int sizeCode = pars.CurrentTrackFormat.Layout.Data[pars.CurrentTrackFormat.FindSectorIndex(dSector)].SizeCode;
if (sindex >= 0 && workTrackFormat.Layout.Data[sindex].SizeCode == sizeCode)
{
if (workTrackFormat.Layout.Data[sindex].Cylinder == track / 2 &&
workTrackFormat.Layout.Data[sindex].Head == head)
{
sectors[si] |= 2;
foundHeaders++;
}
else
{
Log.Info?.Out($"Не совпадает Cylinder или Head в заголовке сектора {dSector} на треке {track} (цилиндр {track / 2} сторона {track % 2}): {workTrackFormat.Layout.Data[sindex]}");
}
}
}
// Поиск экстра-секторов на треке.
int extraSectors = 0;
for (int ii = 0; ii < workTrackFormat.Layout.Cnt; ii++)
{
for (int jj = 0; jj < pars.CurrentTrackFormat.Layout.Cnt; jj++)
{
if (pars.CurrentTrackFormat.Layout.Data[jj].SectorNumber == workTrackFormat.Layout.Data[ii].SectorNumber &&
pars.CurrentTrackFormat.Layout.Data[jj].SizeCode == workTrackFormat.Layout.Data[ii].SizeCode)
{
goto found;
}
}
extraSectors++;
found :;
}
if (extraSectors > maxExtraSectors)
{
maxExtraSectors = extraSectors;
longestTrackFormat.Assign(workTrackFormat);
}
if (foundHeaders == sectorsToCheck)
{
break;
}
}
int noHeaderCnt = 0;
for (int sn = sec0Num, si = sn - track * pars.SectorsOnTrack; sn < sec0NtNum; sn++, si++)
{
if (pars.Image.Sectors[sn] == SectorProcessResult.Good || (sectors[si] & 1) == 1)
{
continue;
}
if ((sectors[si] & 2) == 0)
{
// 4 (100b) означает что заголовок не найден за нужное число попыток
// и больше читать этот сектор не надо, т.к. все попытки исчерпаны.
sectors[si] |= 4;
if (!badWritten)
{
pars.Image.WriteBadSectors(sn, 1, true);
}
noHeaderCnt++;
}
}
if (scanResult)
{
pars.CurrentTrackFormat.Sync(workTrackFormat);
}
Log.Trace?.Out($"На треке {track} не найдены заголовки {noHeaderCnt} секторов.");
if (noHeaderCnt > 0)
{
missedHeaders = true;
}
if (maxExtraSectors > 0)
{
Log.Info?.Out($"Трек {track} имеет несоответствующий формат: {longestTrackFormat.GetFormatName()} | {longestTrackFormat.Layout.Cnt} sectors | {longestTrackFormat.ToStringAsSectorArray()}");
}
}
}
}
else if (error == 23)
{
writeBad = false;
pars.Image.WriteBadSectors(diskSectorNum, memoryHandle, 1, false);
}
if (writeBad && !badWritten)
{
pars.Image.WriteBadSectors(diskSectorNum, 1, noHeader);
}
}
if (Aborted)
{
return;
}
}
Log.Trace?.Out($"Время чтения трека: {GP.ToString(trackTimer.ElapsedMs, 2)}");
trackTimer.Restart();
if (!wasError)
{
break;
}
}
}
public DiskReader(DiskReaderParams pars)
{
Params = pars;
}
public ReaderBase(Control parent, int sectorSize, int sectorsOnTrack, DiskReaderParams dparams)
{
Parent = parent;
SectorSize = sectorSize;
SectorsOnTrack = sectorsOnTrack;
parent.SuspendLayout();
Params = dparams;
readSide = new GroupBox()
{
Parent = parent, Left = 202, Top = 9, Width = 105, Height = 83, Text = "Read Side"
};
side0 = new RadioButton()
{
Parent = readSide, Left = 6, Top = 19, Text = "Side 0", AutoSize = true
};
side1 = new RadioButton()
{
Parent = readSide, Left = 6, Top = 39, Text = "Side 1", AutoSize = true
};
sideBoth = new RadioButton()
{
Parent = readSide, Left = 6, Top = 60, Text = "Both", AutoSize = true, Checked = true
};
sectorReadAttemptsL = new Label()
{
Parent = parent, Left = 312, Top = 3, Text = "Sector Read Attempts", AutoSize = true
};
sectorReadAttempts = new TextBox()
{
Parent = parent, Left = 315, Top = 19, Text = "1"
};
firstTrackL = new Label()
{
Parent = parent, Left = 313, Top = 44, Text = "First Track", AutoSize = true
};
lastTrackL = new Label()
{
Parent = parent, Left = 375, Top = 44, Text = "Last Track", AutoSize = true
};
firstTrack = new TextBox()
{
Parent = parent, Left = 315, Top = 61, Width = 56, Text = "0"
};
lastTrack = new TextBox()
{
Parent = parent, Left = 378, Top = 61, Width = 56, Text = MainForm.MaxTrack.ToString()
};
imageGB = new GroupBox()
{
Parent = parent, Left = 651, Top = 5, Width = 381, Height = 213, Text = "Образ"
};
newImage = new Button()
{
Parent = imageGB, Left = 300, Top = 37, Width = 75, Height = 23, Text = "New"
};
loadImage = new Button()
{
Parent = imageGB, Left = 300, Top = 66, Width = 75, Height = 23, Text = "Load"
};
saveImage = new Button()
{
Parent = imageGB, Left = 300, Top = 94, Width = 75, Height = 23, Text = "Save"
};
showCatalogue = new Button()
{
Parent = imageGB, Left = 170, Top = 184, Width = 75, Height = 23, Text = "Catalogue"
};
showCatFromTrack = new Button()
{
Parent = imageGB, Left = 250, Top = 184, Width = 128, Height = 23, Text = "Catalogue From Track"
};
setSize = new Button()
{
Parent = imageGB, Left = 10, Top = 184, Width = 75, Height = 23, Text = "Set Size"
};
mergeImage = new Button()
{
Parent = imageGB, Left = 90, Top = 184, Width = 75, Height = 23, Text = "Merge"
};
readForward = new Button()
{
Parent = parent, Left = 549, Top = 10, Width = 96, Height = 23, Text = "Read Forward"
};
readBackward = new Button()
{
Parent = parent, Left = 549, Top = 36, Width = 96, Height = 23, Text = "Read Backward"
};
readRandomSectors = new Button()
{
Parent = parent, Left = 511, Top = 72, Width = 134, Height = 23, Text = "Read Random Sectors"
};
abortButton = new Button()
{
Parent = parent, Left = 568, Top = 193, Width = 75, Height = 23, Text = "Abort"
};
readCatalogue = new Button()
{
Parent = parent, Left = 6, Top = 50, Width = 144, Height = 23, Text = "Read Catalogue"
};
dataRateL = new Label()
{
Parent = parent, Left = 3, Top = 10, Text = "Data Rate", AutoSize = true
};
dataRate = new ComboBox()
{
Parent = parent, Left = 6, Top = 26, Width = 121, Height = 21, DropDownStyle = ComboBoxStyle.DropDownList
};
upperSidePanel = new GroupBox()
{
Parent = parent, Left = 316, Top = 99, Width = 156, Height = 89, Text = "Upper Side Head Parameter"
};
upperSide0 = new RadioButton()
{
Parent = upperSidePanel, Left = 6, Top = 20, Text = "Head = 0", AutoSize = true
};
upperSide1 = new RadioButton()
{
Parent = upperSidePanel, Left = 6, Top = 43, Text = "Head = 1", AutoSize = true
};
upperSideAutodetect = new RadioButton()
{
Parent = upperSidePanel, Left = 6, Top = 66, Text = "Autodetect", AutoSize = true, Checked = true
};
readModePanel = new GroupBox()
{
Parent = parent, Left = 202, Top = 99, Width = 105, Height = 62, Text = "Read Mode"
};
readModeStandard = new RadioButton()
{
Parent = readModePanel, Left = 6, Top = 19, Text = "Standard", AutoSize = true, Checked = !Timer.IsHighResolution
};
readModeFast = new RadioButton()
{
Parent = readModePanel, Left = 6, Top = 39, Text = "Fast", AutoSize = true, Checked = Timer.IsHighResolution, Enabled = Timer.IsHighResolution
};
trackLayoutL = new Label()
{
Parent = parent, Left = 0, Top = 205, Text = "Sector Layout:", AutoSize = true
};
trackLayoutLV = new Label()
{
Parent = parent, Left = 75, Top = 205, Text = "...", AutoSize = true
};
drivePanel = new GroupBox()
{
Parent = parent, Left = 152, Top = 9, Width = 46, Height = 62, Text = "Drive"
};
driveA = new RadioButton()
{
Parent = drivePanel, Left = 6, Top = 19, Text = "A:", AutoSize = true, Checked = Params.Drive == Drive.A
};
driveB = new RadioButton()
{
Parent = drivePanel, Left = 6, Top = 39, Text = "B:", AutoSize = true, Checked = Params.Drive == Drive.B
};
trackLayoutL.Visible = MainForm.Dev;
trackLayoutLV.Visible = MainForm.Dev;
for (int i = 0; i < DataRateArray.Length; i++)
{
dataRate.Items.Add(DataRateArray[i].ToString().Replace("FD_RATE_", ""));
}
dataRate.MouseWheel += DataRate_MouseWheel;
FillControls();
stats = new ImageStatsTable(imageGB, SystemColors.Window, SystemColors.ControlText);
stats.SetPosition(6, 16);
stats.Repaint();
map = new Map(MainForm.MaxTrack, SectorSize, SectorsOnTrack, parent, Color.White, stats);
map.SetPosition(0, 227);
map.ReadBoundsChanged += Map_ReadBoundsChanged;
map.FirstTrack = Params.FirstTrack;
map.LastTrack = Params.LastTrack;
map.Repaint();
sectorReadAttempts.TextChanged += SectorReadAttempts_TextChanged;
firstTrack.TextChanged += SectorReadAttempts_TextChanged;
lastTrack.TextChanged += SectorReadAttempts_TextChanged;
side0.CheckedChanged += SectorReadAttempts_TextChanged;
side1.CheckedChanged += SectorReadAttempts_TextChanged;
sideBoth.CheckedChanged += SectorReadAttempts_TextChanged;
dataRate.SelectedIndexChanged += SectorReadAttempts_TextChanged;
upperSide0.CheckedChanged += SectorReadAttempts_TextChanged;
upperSide1.CheckedChanged += SectorReadAttempts_TextChanged;
readModeStandard.CheckedChanged += SectorReadAttempts_TextChanged;
readModeFast.CheckedChanged += SectorReadAttempts_TextChanged;
driveA.CheckedChanged += SectorReadAttempts_TextChanged;
driveB.CheckedChanged += SectorReadAttempts_TextChanged;
abortButton.Click += AbortButton;
setSize.Click += SetSize;
parent.ResumeLayout(false);
}