add brightness overlay

stepmania/src/PrefsManager.cpp

@@ -237,6 +237,7 @@ PrefsManager::PrefsManager() :
 	m_iCenterImageTranslateY		( "CenterImageTranslateY",		0 ),
 	m_fCenterImageAddWidth			( "CenterImageAddWidth",		0 ),
 	m_fCenterImageAddHeight			( "CenterImageAddHeight",		0 ),
+	m_fBrightnessAdd				( "BrightnessAdd",				0 ),
 	m_AttractSoundFrequency			( "AttractSoundFrequency",		ASF_EVERY_TIME ),
 	m_bAllowExtraStage				( "AllowExtraStage",			true ),
 	m_bHideDefaultNoteSkin			( "HideDefaultNoteSkin",		false ),

stepmania/src/PrefsManager.h

@@ -223,6 +223,7 @@ public:
 	Preference<int>		m_iCenterImageTranslateY;
 	Preference<int>		m_fCenterImageAddWidth;
 	Preference<int>		m_fCenterImageAddHeight;
+	Preference<float>	m_fBrightnessAdd;
 	enum AttractSoundFrequency { ASF_NEVER, ASF_EVERY_TIME, ASF_EVERY_2_TIMES, ASF_EVERY_3_TIMES, ASF_EVERY_4_TIMES, ASF_EVERY_5_TIMES };
 	Preference<AttractSoundFrequency>	m_AttractSoundFrequency;
 	Preference<bool>	m_bAllowExtraStage;

stepmania/src/ScreenSystemLayer.cpp

@@ -11,6 +11,7 @@
 #include "RageDisplay.h"
 #include "RageLog.h"
 #include "Command.h"
+#include "ScreenDimensions.h"
 
 
 REGISTER_SCREEN_CLASS( ScreenSystemLayer );
@@ -60,11 +61,11 @@ void ScreenSystemLayer::Init()
 	const float SKIP_LEFT = 320.0f, SKIP_TOP = 60.0f, 
 		SKIP_WIDTH = 160.0f, SKIP_Y_DIST = 16.0f;
 
-	m_SkipBackground.StretchTo(RectF(SKIP_LEFT-8, SKIP_TOP-8,
+	m_quadSkipBackground.StretchTo(RectF(SKIP_LEFT-8, SKIP_TOP-8,
 						SKIP_LEFT+SKIP_WIDTH, SKIP_TOP+SKIP_Y_DIST*NUM_SKIPS_TO_SHOW));
-	m_SkipBackground.SetDiffuse( RageColor(0,0,0,0.4f) );
-	m_SkipBackground.SetHidden( !PREFSMAN->m_bTimestamping );
-	this->AddChild(&m_SkipBackground);
+	m_quadSkipBackground.SetDiffuse( RageColor(0,0,0,0.4f) );
+	m_quadSkipBackground.SetHidden( !PREFSMAN->m_bTimestamping );
+	this->AddChild(&m_quadSkipBackground);
 
 	for( int i=0; i<NUM_SKIPS_TO_SHOW; i++ )
 	{
@@ -81,6 +82,13 @@ void ScreenSystemLayer::Init()
 		this->AddChild(&m_textSkips[i]);
 	}
 
+	m_quadBrightnessAdd.StretchTo( RectF(SCREEN_LEFT,SCREEN_TOP,SCREEN_RIGHT,SCREEN_BOTTOM) );
+	m_quadBrightnessAdd.SetDiffuse( RageColor(1,1,1,PREFSMAN->m_fBrightnessAdd) );
+	m_quadBrightnessAdd.SetHidden( PREFSMAN->m_fBrightnessAdd == 0 );
+	m_quadBrightnessAdd.SetBlendMode( BLEND_ADD );
+	this->AddChild( &m_quadBrightnessAdd );
+
+
 	ReloadCreditsText();
 	/* This will be done when we set up the first screen, after GAMESTATE->Reset has
 	 * been called. */

stepmania/src/ScreenSystemLayer.h

@@ -30,7 +30,8 @@ private:
 	BitmapText m_textTime;
 	BitmapText m_textSkips[NUM_SKIPS_TO_SHOW];
 	int m_LastSkip;
-	Quad m_SkipBackground;
+	Quad m_quadSkipBackground;
+	Quad m_quadBrightnessAdd;
 
 	RageTimer SkipTimer;
 	void AddTimestampLine( const CString &txt, const RageColor &color );