bool EncodeVariantBlob(FileStream fs,
KBlam.RuntimeData.Variants.GameEngineVariant gev)
{
var megalo_variant = gev.TryGetMegaloVariant();
var blf_result = KBlam.Blob.Transport.BlobChunkVerificationResultInfo.ValidResult;
long blffile_length = KBlam.Blob.GameEngineVariantBlob.GetBlfFileLength(mGameBuildAndTarget);
using (var blf = new KBlam.Blob.Transport.BlobTransportStream())
{
blf.GameTarget = mGameBuildAndTarget;
var blob_system = mRequiredSystems.BlobSystemRef.System;
if (fs.Length < blffile_length)
{
fs.SetLength(blffile_length);
}
blf_result = blf.OpenForWrite(fs, mFileOffset, blffile_length);
if (blf_result.IsValid)
{
blf.UnderlyingStream.StreamMode = FileAccess.Write;
int engine_version_to_write = mEngineVersion;
if (megalo_variant != null)
{
if (megalo_variant.EngineVersion <= 0)
{
megalo_variant.EngineVersion = engine_version_to_write;
}
else
{
engine_version_to_write = megalo_variant.EngineVersion;
}
}
var chdr = (KBlam.Blob.ContentHeaderBlob)blob_system.CreateObject(mGameBuildAndTarget, KBlam.Blob.WellKnownBlob.ContentHeader);
chdr.ChangeData(gev.Variant.BaseVariant.Header, engine_version_to_write);
var mpvr = (KBlam.Blob.GameEngineVariantBlob)blob_system.CreateObject(mGameBuildAndTarget, KBlam.Blob.WellKnownBlob.GameVariant);
mpvr.ChangeData(gev);
blf_result = blf.WriteChunksSansAuthentication(chdr, mpvr);
}
}
if (blf_result.IsInvalid)
{
Console.WriteLine("Error: Failed to encode variant file{0}{1}", System.Environment.NewLine,
blf_result.BuildErrorMessage());
}
return(blf_result.IsValid);
}
bool DecodeVariantBlob(FileStream fs,
out KBlam.RuntimeData.Variants.GameEngineVariant gev)
{
gev = null;
KBlam.Blob.GameEngineVariantBlob gevb = null;
var blf_result = KBlam.Blob.Transport.BlobChunkVerificationResultInfo.ValidResult;
long blffile_length = KBlam.Blob.GameEngineVariantBlob.GetBlfFileLength(mGameBuildAndTarget);
using (var blf = new KBlam.Blob.Transport.BlobTransportStream())
{
blf.GameTarget = mGameBuildAndTarget;
var blob_system = mGameEngineBlobSystemRef.System;
blf_result = blf.OpenRange(fs, mFileOffset, mFileOffset + blffile_length, FileAccess.Read);
if (blf_result.IsValid)
{
blf.UnderlyingStream.StreamMode = FileAccess.Read;
IEnumerable <KBlam.Blob.BlobObject> objects;
blf_result = blf.EnumerateChunks(blob_system, out objects);
if (blf_result.IsValid)
{
gevb = (from bo in objects
where bo is KBlam.Blob.GameEngineVariantBlob
select bo).FirstOrDefault() as KBlam.Blob.GameEngineVariantBlob;
}
}
}
if (blf_result.IsInvalid)
{
Console.WriteLine("Error: Failed to decode variant file{0}{1}", System.Environment.NewLine,
blf_result.BuildErrorMessage());
}
else if (gevb == null)
{
Console.WriteLine("Error: Not a game variant file");
}
else if (KBlam.Blob.GameEngineVariantBlob.RequireValidHashes && gevb.InvalidData)
{
Console.WriteLine("Error: Game variant file's bitstream is corrupt");
}
else
{
gev = gevb.Data;
}
return(blf_result.IsValid);
}
