161 lines
3.9 KiB
VB.net
161 lines
3.9 KiB
VB.net
Imports System
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Imports System.IO
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Public Class ISOTools
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Public Function getCDfile(ByVal ISOname As String, ByVal StartSector As Integer, ByVal FileSize As Integer)
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Dim fileArr = New List(Of Byte)
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Dim fs As New FileStream(ISOname, FileMode.Open, FileAccess.Read)
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Dim br As New BinaryReader(fs)
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If Not Form1.Mode2352.Checked Then
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Dim SectorsToRead As Integer = FileSize \ 2048
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If FileSize Mod 2048 > 0 Then SectorsToRead += 1
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Dim bytesToread = 2048
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For a = StartSector To SectorsToRead + StartSector - 1
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Dim bytepos = a * &H930 + 24
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br.BaseStream.Position = bytepos
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fileArr.AddRange(br.ReadBytes(2048))
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Next
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Else
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''''''''''READ RAW FILE WITH 2352 MODE!
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br.BaseStream.Position = StartSector * &H930
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fileArr.AddRange(br.ReadBytes(FileSize))
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End If
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br.Dispose()
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fs.Dispose()
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Return fileArr
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End Function
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Public Function saveCDfile(ByVal ISOname As String, ByVal StartSector As Integer, ByVal FileSize As Integer, ByRef bytes As Byte())
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Try
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Dim fs As New FileStream(ISOname, FileMode.Open, FileAccess.Write)
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Dim br As New BinaryWriter(fs)
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If Not Form1.Mode2352.Checked Then
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Dim SectorsToWrite As Integer = FileSize \ 2048
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If FileSize Mod 2048 > 0 Then
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SectorsToWrite += 1
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ReDim Preserve bytes(FileSize + (2048 - (FileSize Mod 2048)))
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End If
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Dim bytecounter = 0
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For a = StartSector To SectorsToWrite + StartSector - 1
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Dim bytepos = a * &H930 + 24
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br.BaseStream.Position = bytepos
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br.Write(bytes, bytecounter, 2048)
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bytecounter += 2048
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Next
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Else ''''''''''READ RAW FILE WITH 2352 MODE!
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'Todo - 2336 Mode Write
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'br.BaseStream.Position = StartSector * &H930
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'br.Write(bytes, 0, FileSize)
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End If
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br.Dispose()
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fs.Dispose()
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Catch ex As Exception
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MsgBox("Error! Exception: " & vbCrLf & ex.ToString, MsgBoxStyle.Critical)
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End Try
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End Function
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Public Sub UpdateFileListTable(ByVal ISOname As String, ByRef fileInf As List(Of fileInfo))
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Dim tab = New List(Of Byte)
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For Each fil In fileInf
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tab.AddRange(BitConverter.GetBytes(fil.Sector).ToList)
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tab.AddRange(BitConverter.GetBytes(fil.Sizw).ToList)
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Next
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saveCDfile(ISOname, &H17, &H1B88, tab.ToArray)
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End Sub
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Public Function makeFileList(ByVal ISOname As String)
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Dim a = New List(Of fileInfo)
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Dim maxFiles = 880
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Dim FilesSectors = getCDfile(ISOname, &H17, &H4000).ToArray
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If ISOname.Contains("KUDOS") Then FilesSectors = getCDfile(ISOname, &H31, &H1B88).ToArray
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If ISOname.Contains("Sumaru TV") Then maxFiles = 1124
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For x = 0 To maxFiles
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a.Add(New fileInfo With {.FileID = x, .Sector = Form1.Read32bitNum(FilesSectors, x * 8), .Sizw = Form1.Read32bitNum(FilesSectors, x * 8 + 4)})
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Next
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Return a
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End Function
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Public Sub ReallocateDown(ByVal ISOname As String, ByRef fileInf As List(Of fileInfo), ByVal StartFile As Integer, ByVal BySectors As Integer)
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'Dim lastSector = fileInf.Last.Sector + (fileInf.Last.Sizw \ 2048)
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'If fileInf.Last.Sizw Mod 2048 > 0 Then lastSector += 1
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'For a = lastSector To fileInf(StartFile).Sector Step -1
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'Next
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''Reading eachFile from end and Save it +Bysectors
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'For a = 1143 To StartFile Step -1
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' fileInf(a).Sector += BySectors
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'Next
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''UpdateFileListTable(ISOname, fileInf)
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End Sub
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End Class
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