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;
// FIXME: Should this block be here? -flibit
if (graphicsDeviceService == null)
{
graphicsDeviceService = ServiceProvider.GetService(typeof(IGraphicsDeviceService)) as IGraphicsDeviceService;
if (graphicsDeviceService == null)
{
throw new InvalidOperationException("No Graphics Device Service");
}
}
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 = FileHelpers.NormalizeFilePathSeparators(
Path.Combine(RootDirectoryFullPath, assetName)
);
if (typeof(T) == typeof(Texture2D) || typeof(T) == typeof(Texture))
{
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);
}
// 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, 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 = Texture2D.FromStream(
graphicsDeviceService.GraphicsDevice,
stream
);
texture.Name = assetName;
result = texture;
}
else if ((typeof(T) == typeof(SoundEffect)))
{
result = SoundEffect.FromStream(stream);
}
else if ((typeof(T) == typeof(Effect)))
{
byte[] data = new byte[stream.Length];
stream.Read(data, 0, (int)stream.Length);
result = new Effect(graphicsDeviceService.GraphicsDevice, data);
}
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, graphicsDeviceService.GraphicsDevice);
}
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);
}
internal ContentTypeReader[] LoadAssetReaders(ContentReader reader)
{
#pragma warning disable 0219, 0649
// Trick to prevent the linker removing the code, but not actually execute the code
if (falseflag)
{
// Dummy variables required for it to work on iDevices ** DO NOT DELETE **
// This forces the classes not to be optimized out when deploying to iDevices
var hByteReader = new ByteReader();
var hSByteReader = new SByteReader();
var hDateTimeReader = new DateTimeReader();
var hDecimalReader = new DecimalReader();
var hBoundingSphereReader = new BoundingSphereReader();
var hBoundingFrustumReader = new BoundingFrustumReader();
var hRayReader = new RayReader();
var hCharListReader = new ListReader <Char>();
var hRectangleListReader = new ListReader <Rectangle>();
var hRectangleArrayReader = new ArrayReader <Rectangle>();
var hVector3ListReader = new ListReader <Vector3>();
var hStringListReader = new ListReader <StringReader>();
var hIntListReader = new ListReader <Int32>();
var hSpriteFontReader = new SpriteFontReader();
var hTexture2DReader = new Texture2DReader();
var hCharReader = new CharReader();
var hRectangleReader = new RectangleReader();
var hStringReader = new StringReader();
var hVector2Reader = new Vector2Reader();
var hVector3Reader = new Vector3Reader();
var hVector4Reader = new Vector4Reader();
var hCurveReader = new CurveReader();
var hIndexBufferReader = new IndexBufferReader();
var hBoundingBoxReader = new BoundingBoxReader();
var hMatrixReader = new MatrixReader();
var hBasicEffectReader = new BasicEffectReader();
var hVertexBufferReader = new VertexBufferReader();
var hAlphaTestEffectReader = new AlphaTestEffectReader();
var hEnumSpriteEffectsReader = new EnumReader <Graphics.SpriteEffects>();
var hArrayFloatReader = new ArrayReader <float>();
var hArrayVector2Reader = new ArrayReader <Vector2>();
var hListVector2Reader = new ListReader <Vector2>();
var hArrayMatrixReader = new ArrayReader <Matrix>();
var hEnumBlendReader = new EnumReader <Graphics.Blend>();
var hNullableRectReader = new NullableReader <Rectangle>();
var hEffectMaterialReader = new EffectMaterialReader();
var hExternalReferenceReader = new ExternalReferenceReader();
var hSoundEffectReader = new SoundEffectReader();
var hSongReader = new SongReader();
var hModelReader = new ModelReader();
var hInt32Reader = new Int32Reader();
var hEffectReader = new EffectReader();
var hSingleReader = new SingleReader();
// At the moment the Video class doesn't exist
// on all platforms... Allow it to compile anyway.
#if ANDROID || (IOS && !TVOS) || MONOMAC || (WINDOWS && !OPENGL) || WINDOWS_UAP
var hVideoReader = new VideoReader();
#endif
}
#pragma warning restore 0219, 0649
// The first content byte i read tells me the number of content readers in this XNB file
var numberOfReaders = reader.Read7BitEncodedInt();
var contentReaders = new ContentTypeReader[numberOfReaders];
var needsInitialize = new BitArray(numberOfReaders);
_contentReaders = new Dictionary <Type, ContentTypeReader>(numberOfReaders);
// Lock until we're done allocating and initializing any new
// content type readers... this ensures we can load content
// from multiple threads and still cache the readers.
lock (_locker)
{
// For each reader in the file, we read out the length of the string which contains the type of the reader,
// then we read out the string. Finally we instantiate an instance of that reader using reflection
for (var i = 0; i < numberOfReaders; i++)
{
// This string tells us what reader we need to decode the following data
// string readerTypeString = reader.ReadString();
string originalReaderTypeString = reader.ReadString();
Func <ContentTypeReader> readerFunc;
if (typeCreators.TryGetValue(originalReaderTypeString, out readerFunc))
{
contentReaders[i] = readerFunc();
needsInitialize[i] = true;
}
else
{
//System.Diagnostics.Debug.WriteLine(originalReaderTypeString);
// Need to resolve namespace differences
string readerTypeString = originalReaderTypeString;
readerTypeString = PrepareType(readerTypeString);
var l_readerType = Type.GetType(readerTypeString);
if (l_readerType != null)
{
ContentTypeReader typeReader;
if (!_contentReadersCache.TryGetValue(l_readerType, out typeReader))
{
try
{
typeReader = l_readerType.GetDefaultConstructor().Invoke(null) as ContentTypeReader;
}
catch (TargetInvocationException ex)
{
// If you are getting here, the Mono runtime is most likely not able to JIT the type.
// In particular, MonoTouch needs help instantiating types that are only defined in strings in Xnb files.
throw new InvalidOperationException(
"Failed to get default constructor for ContentTypeReader. To work around, add a creation function to ContentTypeReaderManager.AddTypeCreator() " +
"with the following failed type string: " + originalReaderTypeString, ex);
}
needsInitialize[i] = true;
_contentReadersCache.Add(l_readerType, typeReader);
}
contentReaders[i] = typeReader;
}
else
{
throw new ContentLoadException(
"Could not find ContentTypeReader Type. Please ensure the name of the Assembly that contains the Type matches the assembly in the full type name: " +
originalReaderTypeString + " (" + readerTypeString + ")");
}
}
var targetType = contentReaders[i].TargetType;
if (targetType != null)
{
if (!_contentReaders.ContainsKey(targetType))
{
_contentReaders.Add(targetType, contentReaders[i]);
}
}
// I think the next 4 bytes refer to the "Version" of the type reader,
// although it always seems to be zero
reader.ReadInt32();
}
// Initialize any new readers.
for (var i = 0; i < contentReaders.Length; i++)
{
if (needsInitialize.Get(i))
{
contentReaders[i].Initialize(this);
}
}
} // lock (_locker)
return(contentReaders);
}