/// <summary>
/// Saves the given Frame into a stream
/// </summary>
/// <param name="frame">The frame to write to the stream</param>
/// <param name="stream">The stream to write the frame to</param>
protected void SaveFrameToStream(IFrame frame, Stream stream)
{
BinaryWriter writer = new BinaryWriter(stream);
// Save the space for the image size on the stream
long sizeOffset = stream.Position;
writer.Write((long)0);
// Save the frame image
frame.GetComposedBitmap().Save(stream, ImageFormat.Png);
// Skip back to the image size offset and save the size
long streamEnd = stream.Position;
stream.Position = sizeOffset;
writer.Write(streamEnd - sizeOffset - 8);
// Skip back to the end to keep saving
stream.Position = streamEnd;
// Write the frame ID
writer.Write(frame.ID);
// Write the hash now
writer.Write(frame.Hash.Length);
writer.Write(frame.Hash, 0, frame.Hash.Length);
}
/// <summary>
/// Saves the given Frame into a stream
/// </summary>
/// <param name="frame">The frame to write to the stream</param>
/// <param name="stream">The stream to write the frame to</param>
protected void SaveFrameToStream(IFrame frame, Stream stream)
{
BinaryWriter writer = new BinaryWriter(stream);
var castFrame = frame as Frame;
if (castFrame != null)
{
SaveLayersToStream(castFrame, stream);
}
else
{
using (Bitmap bitmap = frame.GetComposedBitmap())
{
PersistenceHelper.SaveImageToStream(bitmap, stream);
}
}
// Write the frame ID
writer.Write(frame.ID);
// Write the hash now
writer.Write(frame.Hash.Length);
writer.Write(frame.Hash, 0, frame.Hash.Length);
}
/// <summary>
/// Writes the given Frame into a stream
/// </summary>
/// <param name="frame">The frame to write to the stream</param>
/// <param name="stream">The stream to write the frame to</param>
public static void WriteFrameToStream(IFrame frame, Stream stream)
{
BinaryWriter writer = new BinaryWriter(stream);
long sizeOffset = stream.Position;
writer.Write((long)0);
frame.GetComposedBitmap().Save(stream, ImageFormat.Png);
// Skip back to the offset and draw the size
stream.Position = sizeOffset;
// Write the size now
writer.Write(stream.Length - sizeOffset - 8);
// Skip to the end and keep saving
stream.Position = stream.Length;
// Write the frame ID
writer.Write(frame.ID);
// Write the hash now
writer.Write(frame.Hash.Length);
writer.Write(frame.Hash, 0, frame.Hash.Length);
}
/// <summary>
/// Sets the current frame being displayed on the filter view
/// </summary>
/// <param name="frame">The </param>
private void SetDisplayFrame(IFrame frame)
{
_currentFrameBitmap?.Dispose();
_currentFrameBitmap = frame.GetComposedBitmap();
fs_filters.SetImage(_currentFrameBitmap);
}