lordelph / icofileloader

                //we translate the BGRA to aRGB ourselves, which is twice as fast

                //as calling imagecolorallocatealpha

                $alpha7 = ((~ord($binary[$offset + 3])) & 0xff) >> 1;

                if ($alpha7 < 127) {

                    $col = ($alpha7 << 24) |

                        (ord($binary[$offset + 2]) << 16) |

                        (ord($binary[$offset + 1]) << 8) |

                        (ord($binary[$offset]));

                    imagesetpixel($im, $j, $i, $col);

                }

                $offset += 4;

            }

        }

        for ($i = $metadata['Height'] - 1; $i >= 0; --$i) {

            for ($j = 0; $j < $metadata['Width']; ++$j) {

                if ($maskBits[$bitoffset] == 0) {

                    //translate BGR to RGB

                    $col = (ord($binary[$offset + 2]) << 16) | (ord($binary[$offset + 1]) << 8) | (ord($binary[$offset]));

                    imagesetpixel($im, $j, $i, $col);

                }

                $offset += 3;

                ++$bitoffset;

            }