remove separate glow modes

stepmania/src/BitmapText.cpp

@@ -482,7 +482,7 @@ void BitmapText::DrawPrimitives()
 	/* render the glow pass */
 	if( m_pTempState->glow.a > 0.0001f )
 	{
-		DISPLAY->SetTextureModeGlow(m_pTempState->glowmode);
+		DISPLAY->SetTextureModeGlow();
 
 		for( unsigned i=0; i<verts.size(); i++ )
 			verts[i].c = m_pTempState->glow;

stepmania/src/RageDisplay.h

@@ -184,7 +184,7 @@ public:
 	virtual int GetNumTextureUnits() = 0;
 	virtual void SetTexture( int iTextureUnitIndex, RageTexture* pTexture ) = 0;
 	virtual void SetTextureModeModulate() = 0;
-	virtual void SetTextureModeGlow( GlowMode m=GLOW_WHITEN ) = 0;
+	virtual void SetTextureModeGlow() = 0;
 	virtual void SetTextureModeAdd() = 0;
 	virtual void SetTextureWrapping( bool b ) = 0;
 	virtual int GetMaxTextureSize() const = 0;

stepmania/src/RageDisplay_D3D.cpp

@@ -999,7 +999,7 @@ void RageDisplay_D3D::SetTextureModeModulate()
 	g_pd3dDevice->SetTextureStageState( g_iCurrentTextureIndex, D3DTSS_ALPHAOP,   D3DTOP_MODULATE );
 }
 
-void RageDisplay_D3D::SetTextureModeGlow(GlowMode m)
+void RageDisplay_D3D::SetTextureModeGlow()
 {
 	if( g_iCurrentTextureIndex >= (int) g_DeviceCaps.MaxSimultaneousTextures )	// not supported
 		return;

stepmania/src/RageDisplay_D3D.h

@@ -33,7 +33,7 @@ public:
 	int GetNumTextureUnits();
 	void SetTexture( int iTextureUnitIndex, RageTexture* pTexture );
 	void SetTextureModeModulate();
-	void SetTextureModeGlow( GlowMode m=GLOW_WHITEN );
+	void SetTextureModeGlow();
 	void SetTextureModeAdd();
 	void SetTextureWrapping( bool b );
 	int GetMaxTextureSize() const;

stepmania/src/RageDisplay_Null.h

@@ -31,7 +31,7 @@ public:
 	int GetNumTextureUnits() { return 1; }
 	void SetTexture( int iTextureUnitIndex, RageTexture* pTexture ) { }
 	void SetTextureModeModulate() { }
-	void SetTextureModeGlow( GlowMode m=GLOW_WHITEN ) { }
+	void SetTextureModeGlow() { }
 	void SetTextureModeAdd() { }
 	void SetTextureWrapping( bool b ) { }
 	int GetMaxTextureSize() const { return 2048; }

stepmania/src/RageDisplay_OGL.cpp

@@ -1344,18 +1344,16 @@ void RageDisplay_OGL::SetTextureModeModulate()
 	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 }
 
-void RageDisplay_OGL::SetTextureModeGlow(GlowMode m)
+void RageDisplay_OGL::SetTextureModeGlow()
 {
-	if(m == GLOW_WHITEN && !g_bEXT_texture_env_combine)
+	if( !g_bEXT_texture_env_combine )
-		m = GLOW_BRIGHTEN; /* we can't do GLOW_WHITEN */
-
-	switch(m)
 	{
-	case GLOW_BRIGHTEN:
+		/* This is changing blend state, instead of texture state, which isn't
+		 * great, but it's better than doing nothing. */
 		glBlendFunc( GL_SRC_ALPHA, GL_ONE );
 		return;
+	}
 
-	case GLOW_WHITEN:
 	/* Source color is the diffuse color only: */
 	glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
 	glTexEnvi(GL_TEXTURE_ENV, GLenum(GL_COMBINE_RGB_EXT), GL_REPLACE);
@@ -1367,8 +1365,6 @@ void RageDisplay_OGL::SetTextureModeGlow(GlowMode m)
 	glTexEnvi(GL_TEXTURE_ENV, GLenum(GL_SOURCE0_ALPHA_EXT), GL_PRIMARY_COLOR_EXT);
 	glTexEnvi(GL_TEXTURE_ENV, GLenum(GL_OPERAND1_ALPHA_EXT), GL_SRC_ALPHA);
 	glTexEnvi(GL_TEXTURE_ENV, GLenum(GL_SOURCE1_ALPHA_EXT), GL_TEXTURE);
-		return;
-	}
 }
 
 void RageDisplay_OGL::SetTextureModeAdd()

stepmania/src/RageDisplay_OGL.h

@@ -34,7 +34,7 @@ public:
 	int GetNumTextureUnits();
 	void SetTexture( int iTextureUnitIndex, RageTexture* pTexture );
 	void SetTextureModeModulate();
-	void SetTextureModeGlow( GlowMode m=GLOW_WHITEN );
+	void SetTextureModeGlow();
 	void SetTextureModeAdd();
 	void SetTextureWrapping( bool b );
 	int GetMaxTextureSize() const;

stepmania/src/Sprite.cpp

@@ -511,7 +511,7 @@ void Sprite::DrawTexture( const TweenState *state )
 	//////////////////////
 	if( state->glow.a > 0.0001f )
 	{
-		DISPLAY->SetTextureModeGlow(state->glowmode);
+		DISPLAY->SetTextureModeGlow();
 		v[0].c = v[1].c = v[2].c = v[3].c = state->glow;
 		DISPLAY->DrawQuad( v );
 	}