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Omit top 32-bits for version 3

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This commit is contained in:
Matt Nadareski
2023-01-09 16:33:56 -08:00
parent 6fbb6bd8dc
commit f086e63914
1 changed files with 8 additions and 4 deletions
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12
BurnOutSharp.Builders/CFB.cs
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@@ -232,7 +232,7 @@ namespace BurnOutSharp.Builders
data.Seek(sectorOffset, SeekOrigin.Begin);
// Try to parse the sectors
var directoryEntries = ParseDirectoryEntries(data, fileHeader.SectorShift);
var directoryEntries = ParseDirectoryEntries(data, fileHeader.SectorShift, fileHeader.MajorVersion);
if (directoryEntries == null)
return null;
@@ -334,8 +334,9 @@ namespace BurnOutSharp.Builders
/// </summary>
/// <param name="data">Stream to parse</param>
/// <param name="sectorShift">Sector shift from the header</param>
/// <param name="majorVersion">Major version from the header</param>
/// <returns>Filled sector full of directory entries on success, null on error</returns>
private static DirectoryEntry[] ParseDirectoryEntries(Stream data, ushort sectorShift)
private static DirectoryEntry[] ParseDirectoryEntries(Stream data, ushort sectorShift, ushort majorVersion)
{
// TODO: Use marshalling here instead of building
const int directoryEntrySize = 64 + 2 + 1 + 1 + 4 + 4 + 4 + 16 + 4 + 8 + 8 + 4 + 8;
@@ -344,7 +345,7 @@ namespace BurnOutSharp.Builders
for (int i = 0; i < directoryEntries.Length; i++)
{
var directoryEntry = ParseDirectoryEntry(data);
var directoryEntry = ParseDirectoryEntry(data, majorVersion);
if (directoryEntry == null)
return null;
@@ -358,8 +359,9 @@ namespace BurnOutSharp.Builders
/// Parse a Stream into a directory entry
/// </summary>
/// <param name="data">Stream to parse</param>
/// <param name="majorVersion">Major version from the header</param>
/// <returns>Filled directory entry on success, null on error</returns>
private static DirectoryEntry ParseDirectoryEntry(Stream data)
private static DirectoryEntry ParseDirectoryEntry(Stream data, ushort majorVersion)
{
// TODO: Use marshalling here instead of building
DirectoryEntry directoryEntry = new DirectoryEntry();
@@ -378,6 +380,8 @@ namespace BurnOutSharp.Builders
directoryEntry.ModifiedTime = data.ReadUInt64();
directoryEntry.StartingSectorLocation = data.ReadUInt32();
directoryEntry.StreamSize = data.ReadUInt64();
if (majorVersion == 3)
directoryEntry.StreamSize &= 0x0000FFFF;
return directoryEntry;
}