fix memleak

stepmania/src/RageSurface.cpp

@@ -38,6 +38,16 @@ int32_t RageSurfacePalette::FindClosestColor( const RageSurfaceColor &color ) co
 	return iBest;
 }
 
+RageSurfaceFormat::RageSurfaceFormat()
+{
+	palette = NULL;	
+}
+
+RageSurfaceFormat::~RageSurfaceFormat()
+{
+	delete palette;
+}
+
 void RageSurfaceFormat::GetRGB( uint32_t val, uint8_t *r, uint8_t *g, uint8_t *b ) const
 {
 	if( BytesPerPixel == 1 )

stepmania/src/RageSurface.h

@@ -26,6 +26,9 @@ struct RageSurfacePalette
 
 struct RageSurfaceFormat
 {
+	RageSurfaceFormat();
+	~RageSurfaceFormat();
+
 	int32_t BytesPerPixel;
 	int32_t BitsPerPixel;
 	uint32_t Rmask, Gmask, Bmask, Amask;