protected static SwfStreamReader GetSwfStreamReader(SwfFileInfo info, Stream stream)
{
if (info.Format == SwfFormat.Unknown)
{
throw new NotSupportedException("Illegal file format");
}
if (info.Format == SwfFormat.FWS)
{
return(new SwfStreamReader(stream));
}
var mem = new MemoryStream();
SwfZip.Decompress(stream, mem, info.Format);
return(new SwfStreamReader(mem));
}
private static Stream DecompressIfNeeded(SwfFileInfo info, Stream stream)
{
if (info.Format == SwfFormat.Unknown)
{
throw new NotSupportedException("Illegal file format");
}
if (info.Format == SwfFormat.FWS)
{
return(stream);
}
var mem = new MemoryStream();
SwfZip.Decompress(stream, mem, info.Format);
return(mem);
}
protected static Bitmap SetAlphas(Bitmap bmp, byte[] compressedAlpha)
{
var alpha = SwfZip.Decompress(compressedAlpha, SwfFormat.CWS);
var index = 0;
var res = new Bitmap(bmp.Width, bmp.Height, PixelFormat.Format32bppArgb);
for (var y = 0; y < bmp.Height; y++)
{
for (var x = 0; x < bmp.Width; x++)
{
var clr = bmp.GetPixel(x, y);
clr = Color.FromArgb(alpha[index], clr);
res.SetPixel(x, y, clr);
index++;
}
}
return(res);
}