void ExtractImage(ArcFile arc, Entry entry, ImageFormat target_format)
{
using (var file = arc.OpenSeekableEntry(entry))
{
var src_format = ImageFormat.FindFormat(file, entry.Name);
if (null == src_format)
{
throw new InvalidFormatException(string.Format("{1}: {0}", guiStrings.MsgUnableInterpretImage, entry.Name));
}
file.Position = 0;
string target_ext = target_format.Extensions.FirstOrDefault() ?? "";
string outname = FindUniqueFileName(entry.Name, target_ext);
if (src_format.Item1 == target_format)
{
// source format is the same as a target, copy file as is
using (var output = ArchiveFormat.CreateFile(outname))
file.CopyTo(output);
return;
}
ImageData image = src_format.Item1.Read(file, src_format.Item2);
if (m_adjust_image_offset)
{
image = AdjustImageOffset(image);
}
using (var outfile = ArchiveFormat.CreateFile(outname))
{
target_format.Write(outfile, image);
}
}
}
