qbool PNG_OpenLibrary (void);
void PNG_CloseLibrary (void);
unsigned char* PNG_LoadImage_BGRA (const unsigned char *f, int filesize, int *miplevel);
qbool PNG_OpenLibrary (void);
void PNG_CloseLibrary (void);
unsigned char* PNG_LoadImage_BGRA (const unsigned char *f, int filesize, int *miplevel);