-int png_apply_filter_32(unsigned char*dest, unsigned char*src, int width, int y);
-void png_inverse_filter_32(int mode, unsigned char*src, unsigned char*old, unsigned char*dest, int width);
+int png_apply_filter_32(unsigned char*dest, unsigned char*src, unsigned width, int y);
+void png_inverse_filter_32(int mode, unsigned char*src, unsigned char*old, unsigned char*dest, unsigned width);