static void FindDisks(const char *);
static void ReadManifest(FILE *, DiskSet *);
static bool CheckManifest(const char *, DiskSet *);
static void FindDisks(const char *);
static void ReadManifest(FILE *, DiskSet *);
static bool CheckManifest(const char *, DiskSet *);
static bool HasLegalExtension(const char *);
static void DrawFilenames(SDL_Renderer *);
static void DrawCharacter(SDL_Renderer *, int, int, uint8_t, bool inv=false);
static bool HasLegalExtension(const char *);
static void DrawFilenames(SDL_Renderer *);
static void DrawCharacter(SDL_Renderer *, int, int, uint8_t, bool inv=false);