Miracast HTPC via Software/Wifi Card?

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http://forum.xda-developers.com – For years I've run a very nice MythTV media server complete with multiseat linux, 5 hard drives, you get the idea. So the idea of buying an extra "dongle" like the ptv or other miracast adapters, while the price isn't bad at all on most of them, seems a bit silly when I've got a core i5 with 10gb of RAM running all the time as is. Long story short, is there any way to duplicate functionality of these miracast devices in software, preferably on Linux? I realize I'll need a wifi adapter (currently using ethernet but don't mind adding a wifi adapter to give me the requisite wifi dir (HowTos)