Backport custom song support. Prefs are CustomSongsEnable, CustomSongsMaxCount, CustomSongsLoadTimeout, CustomSongsMaxSeconds, CustomSongsMaxMegabytes. Metrics are NumProfileSongGroupColors and the colors with it. Profile custom load function is passed PlayerNumber now. Stepmania must run as root to save USB profile scores. (#1470)

src/Profile.h

@@ -14,6 +14,7 @@
 #include "TrailUtil.h"	// for TrailID
 #include "StyleUtil.h"	// for StyleID
 #include "LuaReference.h"
+#include "PlayerNumber.h"
 
 class XNode;
 struct lua_State;
@@ -134,6 +135,10 @@ public:
 				m_CategoryHighScores[st][rc].Init();
 	}
 
+
+	~Profile();
+	void ClearSongs();
+
 	// smart accessors
 	RString GetDisplayNameOrHighScoreName() const;
 	Character *GetCharacter() const;
@@ -196,6 +201,7 @@ public:
 	RString m_sGuid;
 	map<RString,RString> m_sDefaultModifiers;
 	SortOrder m_SortOrder;
+	std::vector<Song*> m_songs;
 	Difficulty m_LastDifficulty;
 	CourseDifficulty m_LastCourseDifficulty;
 	StepsType m_LastStepsType;
@@ -376,7 +382,8 @@ public:
 		InitCourseScores(); 
 		InitCategoryScores(); 
 		InitScreenshotData(); 
-		InitCalorieData(); 
+		InitCalorieData();
+		ClearSongs();
 	}
 	void InitEditableData(); 
 	void InitGeneralData(); 
@@ -393,8 +400,9 @@ public:
 	void HandleStatsPrefixChange(RString dir, bool require_signature);
 	ProfileLoadResult LoadAllFromDir( RString sDir, bool bRequireSignature );
 	ProfileLoadResult LoadStatsFromDir(RString dir, bool require_signature);
+	void LoadSongsFromDir(RString const& dir, ProfileSlot prof_slot);
 	void LoadTypeFromDir(RString dir);
-	void LoadCustomFunction( RString sDir );
+	void LoadCustomFunction(RString sDir, PlayerNumber pn);
 	bool SaveAllToDir( RString sDir, bool bSignData ) const;
 
 	ProfileLoadResult LoadEditableDataFromDir( RString sDir );