protected T ReadAsset <T>(string assetName, Action <IDisposable> recordDisposableObject)
{
if (string.IsNullOrEmpty(assetName))
{
throw new ArgumentNullException("assetName");
}
if (disposed)
{
throw new ObjectDisposedException("ContentManager");
}
object result = null;
Stream stream = null;
string modifiedAssetName = String.Empty; // Will be used if we have to guess a filename
try
{
stream = OpenStream(assetName);
}
catch (Exception e)
{
// Okay, so we couldn't open it. Maybe it needs a different extension?
// FIXME: This only works for files on the disk, what about custom streams? -flibit
modifiedAssetName = MonoGame.Utilities.FileHelpers.NormalizeFilePathSeparators(
Path.Combine(RootDirectoryFullPath, assetName)
);
if (typeof(T) == typeof(Texture2D) || typeof(T) == typeof(Texture))
{
modifiedAssetName = Texture2DReader.Normalize(modifiedAssetName);
}
else if (typeof(T) == typeof(TextureCube))
{
modifiedAssetName = Texture2DReader.Normalize(modifiedAssetName);
}
else if ((typeof(T) == typeof(SoundEffect)))
{
modifiedAssetName = SoundEffectReader.Normalize(modifiedAssetName);
}
else if ((typeof(T) == typeof(Effect)))
{
modifiedAssetName = EffectReader.Normalize(modifiedAssetName);
}
else if ((typeof(T) == typeof(Song)))
{
modifiedAssetName = SongReader.Normalize(modifiedAssetName);
}
else if ((typeof(T) == typeof(Video)))
{
modifiedAssetName = VideoReader.Normalize(modifiedAssetName);
}
else
{
// No raw format available, disregard!
modifiedAssetName = null;
}
// Did we get anything...?
if (String.IsNullOrEmpty(modifiedAssetName))
{
// Nope, nothing we're aware of!
throw new ContentLoadException(
"Could not load asset " + assetName + "! Error: " + e.Message,
e
);
}
stream = TitleContainer.OpenStream(modifiedAssetName);
}
// Check for XNB header
stream.Read(xnbHeader, 0, xnbHeader.Length);
if (xnbHeader[0] == 'X' &&
xnbHeader[1] == 'N' &&
xnbHeader[2] == 'B' &&
targetPlatformIdentifiers.Contains((char)xnbHeader[3]))
{
using (BinaryReader xnbReader = new BinaryReader(stream))
using (ContentReader reader = GetContentReaderFromXnb(assetName, ref stream, xnbReader, (char)xnbHeader[3], recordDisposableObject))
{
result = reader.ReadAsset <T>();
GraphicsResource resource = result as GraphicsResource;
if (resource != null)
{
resource.Name = assetName;
}
}
}
else
{
// It's not an XNB file. Try to load as a raw asset instead.
// FIXME: Assuming seekable streams! -flibit
stream.Seek(0, SeekOrigin.Begin);
if (typeof(T) == typeof(Texture2D) || typeof(T) == typeof(Texture))
{
Texture2D texture;
if (xnbHeader[0] == 'D' &&
xnbHeader[1] == 'D' &&
xnbHeader[2] == 'S' &&
xnbHeader[3] == ' ')
{
texture = Texture2D.DDSFromStreamEXT(
GetGraphicsDevice(),
stream
);
}
else
{
texture = Texture2D.FromStream(
GetGraphicsDevice(),
stream
);
}
texture.Name = assetName;
result = texture;
}
else if (typeof(T) == typeof(TextureCube))
{
TextureCube texture = TextureCube.DDSFromStreamEXT(
GetGraphicsDevice(),
stream
);
texture.Name = assetName;
result = texture;
}
else if (typeof(T) == typeof(SoundEffect))
{
SoundEffect effect = SoundEffect.FromStream(stream);
effect.Name = assetName;
result = effect;
}
else if (typeof(T) == typeof(Effect))
{
byte[] data = new byte[stream.Length];
stream.Read(data, 0, (int)stream.Length);
Effect effect = new Effect(GetGraphicsDevice(), data);
effect.Name = assetName;
result = effect;
}
else if (typeof(T) == typeof(Song))
{
// FIXME: Not using the stream! -flibit
result = new Song(modifiedAssetName);
}
else if (typeof(T) == typeof(Video))
{
// FIXME: Not using the stream! -flibit
result = new Video(modifiedAssetName, GetGraphicsDevice());
FNALoggerEXT.LogWarn(
"Video " +
modifiedAssetName +
" does not have an XNB file! Hacking Duration property!"
);
}
else
{
stream.Close();
throw new ContentLoadException("Could not load " + assetName + " asset!");
}
/* Because Raw Assets skip the ContentReader step, they need to have their
* disposables recorded here. Doing it outside of this catch will
* result in disposables being logged twice.
*/
IDisposable disposableResult = result as IDisposable;
if (disposableResult != null)
{
if (recordDisposableObject != null)
{
recordDisposableObject(disposableResult);
}
else
{
disposableAssets.Add(disposableResult);
}
}
/* Because we're not using a BinaryReader for raw assets, we
* need to close the stream ourselves.
* -flibit
*/
stream.Close();
}
return((T)result);
}