big changes here:

- Eliminate the useless check for cpu modifications option from efb to ram as it must be enabled always
- use constant names in dx11 for buffer length calculation instead to simplify code reading
- implemented scaled efb copy in opengl, still bugy in some games, the option is not in the gui but will add it when it works perfect
- Change the depth calculation behavior:
if the game use z textures is exactly the same as before.
if the game do not use z texture calculate z values in the vertex shader. the advantage id this approach is that early z culling is applied,
improving fill rate. this mus speed up things, even with ssaa and msaa enabled.
please test for regression and enjoy.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5896 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Plugins/Plugin_VideoDX9/Src/DlgSettings.h

@@ -112,7 +112,6 @@ class GFXConfigDialogDX : public wxDialog
 		wxCheckBox *m_OverlayFPS;
 		wxCheckBox *m_CopyEFB;
 		wxRadioButton *m_Radio_CopyEFBToRAM;
-		wxCheckBox *m_VerifyTextureModification;
 		wxRadioButton *m_Radio_CopyEFBToGL;
 		wxCheckBox *m_EnableHotkeys;
 		wxCheckBox *m_WireFrame;
@@ -150,7 +149,6 @@ class GFXConfigDialogDX : public wxDialog
 			ID_OVERLAYFPS,
 			ID_ENABLEEFBCOPY,
 			ID_EFBTORAM,
-			ID_VERIFYTEXTUREMODIFICATIONS,
 			ID_EFBTOTEX,
 			ID_ENABLEHOTKEY,
 			ID_WIREFRAME,