CVT_PTR_NOCHECK  1616 third_party/libpng/pngconf.h #  define CVT_PTR_NOCHECK(ptr) (png_far_to_near(png_ptr,ptr,NOCHECK))
CVT_PTR_NOCHECK  1624 third_party/libpng/pngconf.h #  define CVT_PTR_NOCHECK(ptr) (ptr)