SabreTools/BinaryObjectScanner
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Code Issues 295 Packages Projects Releases 20 Wiki Activity

Slight reorganization

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This commit is contained in:
Matt Nadareski
2023-01-09 22:17:58 -08:00
parent 068ee76983
commit cc6a65d5e4
1 changed files with 23 additions and 19 deletions
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42
BurnOutSharp.Wrappers/CFB.cs
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@@ -159,7 +159,7 @@ namespace BurnOutSharp.Wrappers
#endregion
#region Data
#region FAT Sector Data
/// <summary>
/// Get the ordered FAT sector chain for a given starting sector
@@ -210,7 +210,7 @@ namespace BurnOutSharp.Wrappers
for (int i = 0; i < sectorChain.Count; i++)
{
// Try to get the sector data offset
int sectorDataOffset = (int)ToFileOffset(sectorChain[i]);
int sectorDataOffset = (int)FATSectorToFileOffset(sectorChain[i]);
if (sectorDataOffset < 0 || sectorDataOffset >= GetEndOfFile())
return null;
@@ -227,6 +227,25 @@ namespace BurnOutSharp.Wrappers
return data.ToArray();
}
/// <summary>
/// Convert a FAT sector value to a byte offset
/// </summary>
/// <param name="sector">Sector to convert</param>
/// <returns>File offset in bytes, -1 on error</returns>
public long FATSectorToFileOffset(Models.CFB.SectorNumber sector)
{
// If we have an invalid sector number
if (sector > Models.CFB.SectorNumber.MAXREGSECT)
return -1;
// Convert based on the sector shift value
return (long)((long)(sector + 1) * Math.Pow(2, SectorShift));
}
#endregion
#region Mini FAT Sector Data
/// <summary>
/// Get the ordered Mini FAT sector chain for a given starting sector
/// </summary>
@@ -276,7 +295,7 @@ namespace BurnOutSharp.Wrappers
for (int i = 0; i < sectorChain.Count; i++)
{
// Try to get the sector data offset
int sectorDataOffset = (int)ToMiniFileOffset(sectorChain[i]);
int sectorDataOffset = (int)MiniFATSectorToFileOffset(sectorChain[i]);
if (sectorDataOffset < 0 || sectorDataOffset >= GetEndOfFile())
return null;
@@ -293,27 +312,12 @@ namespace BurnOutSharp.Wrappers
return data.ToArray();
}
/// <summary>
/// Convert a FAT sector value to a byte offset
/// </summary>
/// <param name="sector">Sector to convert</param>
/// <returns>File offset in bytes, -1 on error</returns>
public long ToFileOffset(Models.CFB.SectorNumber sector)
{
// If we have an invalid sector number
if (sector > Models.CFB.SectorNumber.MAXREGSECT)
return -1;
// Convert based on the sector shift value
return (long)((long)(sector + 1) * Math.Pow(2, SectorShift));
}
/// <summary>
/// Convert a Mini FAT sector value to a byte offset
/// </summary>
/// <param name="sector">Sector to convert</param>
/// <returns>File offset in bytes, -1 on error</returns>
public long ToMiniFileOffset(Models.CFB.SectorNumber sector)
public long MiniFATSectorToFileOffset(Models.CFB.SectorNumber sector)
{
// If we have an invalid sector number
if (sector > Models.CFB.SectorNumber.MAXREGSECT)