1562          png_uint_32 reciprocal = 0;  in png_write_image_16bit()  local
1573             reciprocal = ((0xffff<<15)+(alpha>>1))/alpha;  in png_write_image_16bit()
1595                png_uint_32 calc = component * reciprocal;  in png_write_image_16bit()
1628    png_uint_32 reciprocal/*from the above macro*/)  in png_unpremultiply()  argument
1655          component *= reciprocal;  in png_unpremultiply()
1714             png_uint_32 reciprocal = 0;  in png_write_image_8bit()  local
1721                reciprocal = UNP_RECIPROCAL(alpha);  in png_write_image_8bit()
1725                *out_ptr++ = png_unpremultiply(*in_ptr++, alpha, reciprocal);  in png_write_image_8bit()
1832             png_uint_32 reciprocal = 0;  in png_image_set_PLTE()  local
1839                reciprocal = (((0xffff*0xff)<<7)+(alpha>>1))/alpha;  in png_image_set_PLTE()
1848                   alpha, reciprocal);  in png_image_set_PLTE()
1850                   reciprocal);  in png_image_set_PLTE()
1852                   reciprocal);  in png_image_set_PLTE()
1857                   png_unpremultiply(entry[afirst], alpha, reciprocal);  in png_image_set_PLTE()