/// <summary>
/// Writes a text entry of a Subtitle Packet to a Stream.
/// </summary>
/// <param name="Writer">The writer of the output Stream</param>
/// <param name="PacketText">The text entry to be written</param>
public static void ToStream(EndianBinaryWriter Writer, SubtitlePacketText PacketText)
{
byte[] TextBuffer = new byte[0];
if (PacketText.Text != null)
{
PacketText.Text = PacketText.Text.Replace("\\n", Environment.NewLine);
TextBuffer = MGSText.Text2Buffer(PacketText.Text, MGSGame.MGS4);
}
int Length = TextBuffer.Length + 1;
if ((Length & 3) != 0)
{
Length = (Length & ~3) + 4;
}
Writer.Write(PacketText.StartTime);
Writer.Write(PacketText.EndTime);
Writer.Write(0u);
Writer.Write((ushort)(Length + 0x10));
Writer.Write((ushort)PacketText.LanguageId);
Writer.Write(TextBuffer);
Writer.Write((byte)0);
while ((Writer.BaseStream.Position & 3) != 0)
{
Writer.Write((byte)0);
}
}
/// <summary>
/// Writes a Subtitle Packet to a Stream.
/// </summary>
/// <param name="Writer">The writer of the output Stream</param>
/// <param name="Packet">The packet to be written</param>
public static void ToStream(EndianBinaryWriter Writer, SubtitlePacket Packet)
{
using (MemoryStream Content = new MemoryStream())
{
EndianBinaryWriter CWriter = new EndianBinaryWriter(Content, Writer.Endian);
foreach (SubtitlePacketText Text in Packet.Texts)
{
SubtitlePacketText.ToStream(CWriter, Text);
}
int Length = (int)Content.Length + 0x14 + 1;
if ((Length & 0xf) != 0)
{
Length = (Length & ~0xf) + 0x10;
}
Writer.Endian = Endian.Little;
Writer.Write(0u);
Writer.Write(Length);
Writer.Write(Packet.BaseStartTime);
Writer.Endian = Endian.Big;
Writer.Write(0u);
Writer.Write((int)Content.Length);
Writer.Write(Content.ToArray());
Writer.Write((byte)0);
while ((Writer.BaseStream.Position & 0xf) != 0)
{
Writer.Write((byte)0);
}
}
}
/// <summary>
/// Reads a Subtitle Packet from a Stream.
/// </summary>
/// <param name="Reader">The reader of the Stream where the data is located</param>
/// <returns>The packet as a object</returns>
public static SubtitlePacket FromStream(EndianBinaryReader Reader)
{
SubtitlePacket Packet = new SubtitlePacket();
long BasePosition = Reader.BaseStream.Position;
Reader.Endian = Endian.Little;
uint Signature = Reader.ReadUInt32();
uint PacketLength = Reader.ReadUInt32();
long EndPosition = BasePosition + PacketLength;
if (PacketLength == 0 || Signature != 0)
{
return(null);
}
Packet.BaseStartTime = Reader.ReadUInt32();
Reader.Endian = Endian.Big;
uint Dummy = Reader.ReadUInt32();
uint DataLength = Reader.ReadUInt32();
while (Reader.BaseStream.Position + 0x10 < EndPosition)
{
Packet.Texts.Add(SubtitlePacketText.FromStream(Reader));
}
Reader.Seek(EndPosition, SeekOrigin.Begin);
return(Packet);
}
/// <summary>
/// Reads a text entry of a Subtitle Packet from a Stream.
/// </summary>
/// <param name="Reader">The reader of the Stream where the data is located</param>
/// <returns>The entry as a object</returns>
public static SubtitlePacketText FromStream(EndianBinaryReader Reader)
{
SubtitlePacketText PacketText = new SubtitlePacketText();
PacketText.StartTime = Reader.ReadUInt32();
PacketText.EndTime = Reader.ReadUInt32();
uint Dummy = Reader.ReadUInt32();
ushort TextLength = Reader.ReadUInt16();
PacketText.LanguageId = Reader.ReadUInt16();
byte[] TextBuffer = new byte[TextLength - 0x10];
Reader.Read(TextBuffer, 0, TextBuffer.Length);
PacketText.Text = MGSText.Buffer2Text(Unpad(TextBuffer), MGSGame.MGS4);
PacketText.Text = PacketText.Text.Replace(Environment.NewLine, "\\n");
return(PacketText);
}
