public TagAnalyzer(TagCache cache, HaloTag tag)
{
_cache = cache;
_tag = tag;
_tagMap = BuildTagMap(tag);
_dataFixupsByWriteOffset = _tag.DataFixups.ToDictionary(f => f.WriteOffset);
_resourceFixupsByWriteOffset = _tag.ResourceFixups.ToDictionary(f => f.WriteOffset);
}
/// <summary>
/// Builds a memory map for a tag.
/// </summary>
/// <param name="tag">The tag to build a memory map for.</param>
/// <returns>The built map.</returns>
private static MemoryMap BuildTagMap(TagInstance tag)
{
// Create a memory map with a boundary at each fixup target
// and at the main structure
var result = new MemoryMap(0, (uint)tag.DataSize);
result.AddBoundary(tag.MainStructOffset);
result.AddBoundaries(tag.DataFixups.Select(f => f.TargetOffset));
return result;
}
/// <summary>
/// Builds a memory map for a tag.
/// </summary>
/// <param name="data">The tag data to build a memory map for.</param>
/// <returns>The built map.</returns>
private static MemoryMap BuildTagMap(TagData data)
{
// Create a memory map with a boundary at each fixup target
// and at the main structure
var result = new MemoryMap(0, (uint)data.Data.Length);
result.AddBoundary(data.MainStructOffset);
result.AddBoundaries(data.PointerFixups.Select(f => f.TargetOffset));
return result;
}
public TagAnalyzer(TagCache cache, TagInstance tag)
{
_cache = cache;
_tag = tag;
_tagMap = BuildTagMap(tag);
_dataFixupsByWriteOffset = _tag.DataFixups.ToDictionary(f => f.WriteOffset);
_resourceFixupsByWriteOffset = _tag.ResourceFixups.ToDictionary(f => f.WriteOffset);
foreach (var group in cache.Tags.NonNull().Select(t => t.GroupTag).Distinct())
_tagGroups.Add(group);
}
public TagLayoutGuess Analyze(TagData data)
{
_tagMap = BuildTagMap(data);
_dataFixupsByWriteOffset = data.PointerFixups.ToDictionary(f => f.WriteOffset);
_resourceFixupsByWriteOffset = new HashSet<uint>(data.ResourcePointerOffsets);
using (var reader = new BinaryReader(new MemoryStream(data.Data)))
{
reader.BaseStream.Position = data.MainStructOffset;
return AnalyzeStructure(reader, 1);
}
}
