fixed screen clearing and simplify drawClearQuad a little
put some nice code from dx11 that i like in dx9.
modify plugin spec preparing for implementing efb poke (is not used often but is a missing functionality so..)
please test.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5710 8ced0084-cf51-0410-be5f-012b33b47a6e
Might or might not work for you, yet.
Anyway, read the soon to be created forum thread on this plugin before asking any questions.
Huge thanks to rodolfoosvaldobogado for helping me out in various areas.
Also, thanks to everyone on IRC who supported me during development ;)
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5680 8ced0084-cf51-0410-be5f-012b33b47a6e
