DXT3Compression   450 Magick++/lib/Magick++/Include.h   using MagickCore::DXT3Compression;
DXT3Compression  1733 coders/dds.c             compression = DXT3Compression;
DXT3Compression   871 magick/option.c     { "DXT3", DXT3Compression, UndefinedOptionFlag, MagickFalse },