add ShowMasks

stepmania/Themes/default/Languages/en.ini

@@ -1015,6 +1015,7 @@ Screen Test Mode=Screen Test Mode
 Send Off To Screen=Send Off To Screen
 Send On To Screen=Send On To Screen
 Send Notes Ended=Send Notes Ended
+Show Masks=Show Masks
 Slow=Slow
 Song=Song
 Tempo=Tempo

stepmania/src/Actor.cpp

@@ -13,6 +13,9 @@
 #include "MessageManager.h"
 #include "LightsManager.h" // for NUM_CabinetLight
 #include "ActorUtil.h"
+#include "Preference.h"
+
+static Preference<bool> g_bShowMasks("ShowMasks", false);
 
 /* It's useful to be able to construct a basic Actor in XML, in
  * order to simply delay a Transition, or receive and send broadcasts.
@@ -500,7 +503,8 @@ void Actor::BeginDraw()		// set the world matrix and calculate actor properties
 void Actor::SetGlobalRenderStates()
 {
 	// set Actor-defined render states
-	DISPLAY->SetBlendMode( m_BlendMode );
+	if( !g_bShowMasks.Get() || m_BlendMode != BLEND_NO_EFFECT )
+		DISPLAY->SetBlendMode( m_BlendMode );
 	DISPLAY->SetZWrite( m_bZWrite );
 	DISPLAY->SetZTestMode( m_ZTestMode );
 	

stepmania/src/ScreenDebugOverlay.cpp

@@ -483,6 +483,7 @@ static LocalizedString RENDERING_STATS		( "ScreenDebugOverlay", "Rendering Stats
 static LocalizedString VSYNC			( "ScreenDebugOverlay", "Vsync" );
 static LocalizedString MULTITEXTURE		( "ScreenDebugOverlay", "Multitexture" );
 static LocalizedString SCREEN_TEST_MODE		( "ScreenDebugOverlay", "Screen Test Mode" );
+static LocalizedString SCREEN_SHOW_MASKS	( "ScreenDebugOverlay", "Show Masks" );
 static LocalizedString PROFILE			( "ScreenDebugOverlay", "Profile" );
 static LocalizedString CLEAR_PROFILE_STATS	( "ScreenDebugOverlay", "Clear Profile Stats" );
 static LocalizedString FILL_PROFILE_STATS	( "ScreenDebugOverlay", "Fill Profile Stats" );
@@ -711,6 +712,27 @@ class DebugLineScreenTestMode : public IDebugLine
 	}
 };
 
+class DebugLineShowMasks : public IDebugLine
+{
+	virtual RString GetDisplayTitle() { return SCREEN_SHOW_MASKS.GetValue(); }
+	virtual bool IsEnabled() { return GetPref()->Get(); }
+	virtual RString GetPageName() const { return "Theme"; }
+	virtual void DoAndMakeSystemMessage( RString &sMessageOut )
+	{
+		GetPref()->Set( !GetPref()->Get() );
+		IDebugLine::DoAndMakeSystemMessage( sMessageOut );
+	}
+
+	Preference<bool> *GetPref()
+	{
+		IPreference *pPref = IPreference::GetPreferenceByName("ShowMasks");
+		ASSERT( pPref );
+		Preference<bool> *pRet = dynamic_cast<Preference<bool> *>(pPref);
+		ASSERT( pRet );
+		return pRet;
+	}
+};
+
 static ProfileSlot g_ProfileSlot = ProfileSlot_Machine;
 static bool IsSelectProfilePersistent()
 {
@@ -1072,6 +1094,7 @@ DECLARE_ONE( DebugLineStats );
 DECLARE_ONE( DebugLineVsync );
 DECLARE_ONE( DebugLineAllowMultitexture );
 DECLARE_ONE( DebugLineScreenTestMode );
+DECLARE_ONE( DebugLineShowMasks );
 DECLARE_ONE( DebugLineProfileSlot );
 DECLARE_ONE( DebugLineClearProfileStats );
 DECLARE_ONE( DebugLineFillProfileStats );