internal void Read(GifReader reader)
{
left = reader.ReadUInt16();
top = reader.ReadUInt16();
width = reader.ReadUInt16();
height = reader.ReadUInt16();
Byte flags = reader.ReadByte();
localColorTableFlag = 0x80 == (flags & 0x80);
interlaced = 0x40 == (flags & 0x40);
localColorTableSorted = 0x20 == (flags & 0x20);
localColorTableSize = (UInt16)(2 << (flags & 0x07));
}
internal void Read(GifReader reader)
{
width = reader.ReadUInt16();
height = reader.ReadUInt16();
Byte flags = reader.ReadByte();
globalColorTableFlag = 0x80 == (flags & 0x80);
colorResolution = (Byte)(((flags & 0x70) >> 4) + 1);
globalColorTableSorted = 0x08 == (flags & 0x08);
globalColorTableSize = (UInt16)(2 << (flags & 0x07));
backgroundColorIndex = reader.ReadByte();
pixelAspectRatio = reader.ReadByte();
}
internal void Read(GifReader reader)
{
Byte size = reader.ReadByte();
if (size != 4)
{
System.Diagnostics.Debug.WriteLine("Wrong size of " + ToString());
}
Byte flags = reader.ReadByte();
disposalMethod = (GifDisposalMethod)((flags & 0x1C) >> 2);
userInputExpected = 0x02 == (flags & 0x02);
transparency = 0x01 == (flags & 0x01);
delay = reader.ReadUInt16();
transparencyIndex = reader.ReadByte();
Byte terminator = reader.ReadByte();
if (terminator != 0x00)
{
throw new Exception("Unknown extension terminator: 0x" + terminator.ToString("X2"));
}
}
internal void Read(GifReader reader)
{
Byte size = reader.ReadByte();
if (size != 12)
{
System.Diagnostics.Debug.WriteLine("Wrong size of " + ToString());
}
left = reader.ReadUInt16();
top = reader.ReadUInt16();
width = reader.ReadUInt16();
height = reader.ReadUInt16();
cellWidth = reader.ReadByte();
cellHeight = reader.ReadByte();
foregroundColor = reader.ReadByte();
backgroundColor = reader.ReadByte();
text = reader.ReadTextSubBlocks();
}