public void Serialize(ref byte[] buffer, ref int offset, Bitmap img)
{
// Let the image serialize itself to the memory stream
// Its unfortunate that there's only a stream-based api...
// The alternative would be manually locking the bits.
// That would be easy, but we'd potentially lose some information (animation frames etc?)
// Prepare buffer stream
if (_sharedMemoryStream == null)
{
_sharedMemoryStream = new MemoryStream(200 * 1024);
}
var stream = _sharedMemoryStream;
// Encode image into stream
stream.Position = 0;
var format = BitmapModeToImgFormat(BitmapMode);
img.Save(stream, format);
long sizeLong = stream.Length;
if (sizeLong > int.MaxValue)
{
throw new InvalidOperationException("image too large");
}
int size = (int)sizeLong;
stream.Position = 0;
var streamBuffer = stream.GetBuffer();
// Write Size
SerializerBinary.WriteUInt32Fixed(ref buffer, ref offset, (uint)size);
// Write stream data to serialization buffer
if (size > 0)
{
SerializerBinary.EnsureCapacity(ref buffer, offset, size);
SerializerBinary.FastCopy(streamBuffer, 0, buffer, (uint)offset, (uint)size);
}
offset += size;
}
public void Serialize(ref byte[] buffer, ref int offset, Bitmap img)
{
// Let the image serialize itself to the memory stream
// Its unfortunate that there's only a stream-based api...
// The alternative would be manually locking the bits.
// That would be easy, but we'd potentially lose some information (animation frames etc?)
var mode = BitmapMode;
var format = BitmapModeToImgFormat(mode);
if (_sharedMemoryStream == null)
{
_sharedMemoryStream = new MemoryStream((int)(4 * (img.Width * img.Height) * 1.35));
}
var ms = _sharedMemoryStream;
ms.Position = 0;
img.Save(ms, format);
long sizeLong = ms.Position;
if (sizeLong > int.MaxValue)
{
throw new InvalidOperationException("image too large");
}
int size = (int)sizeLong;
ms.Position = 0;
var memoryStreamBuffer = ms.GetBuffer();
// Write Size
SerializerBinary.WriteUInt32Fixed(ref buffer, ref offset, (uint)size);
// Write data into serialization buffer
if (size > 0)
{
SerializerBinary.EnsureCapacity(ref buffer, offset, size);
SerializerBinary.FastCopy(memoryStreamBuffer, 0, buffer, offset, size);
}
offset += size;
}
