public static unsafe Image LoadFromMemory(IntPtr pSource, int size, bool makeACopy, GCHandle?handle)
{
var stream = new BinarySerializationReader(new NativeMemoryStream((byte *)pSource, size));
// Read and check magic code
var magicCode = stream.ReadUInt32();
if (magicCode != MagicCode)
{
return(null);
}
// Read header
var imageDescription = new ImageDescription();
ImageDescriptionSerializer.Serialize(ref imageDescription, ArchiveMode.Deserialize, stream);
if (makeACopy)
{
var buffer = Utilities.AllocateMemory(size);
Utilities.CopyMemory(buffer, pSource, size);
pSource = buffer;
makeACopy = false;
}
var image = new Image(imageDescription, pSource, 0, handle, !makeACopy);
var totalSizeInBytes = stream.ReadInt32();
if (totalSizeInBytes != image.TotalSizeInBytes)
{
throw new InvalidOperationException("Image size is different than expected.");
}
// Read image data
stream.Serialize(image.DataPointer, image.TotalSizeInBytes);
return(image);
}