1--TEST-- 2Bug #61221 - imagegammacorrect function loses alpha channel 3--SKIPIF-- 4<?php 5if (!extension_loaded('gd')) die('skip gd extension not available'); 6?> 7--FILE-- 8<?php 9$imagew = 50; 10$imageh = 50; 11$img = imagecreatetruecolor($imagew, $imageh); 12$blacktransparent = imagecolorallocatealpha($img, 0, 0, 0, 127); 13$redsolid = imagecolorallocate($img, 255, 0, 0); 14imagefill($img, 0, 0, $blacktransparent); 15imageline($img, $imagew / 2, 0, $imagew / 2, $imageh - 1, $redsolid); 16imageline($img, 0, $imageh / 2, $imagew - 1, $imageh / 2, $redsolid); 17imagegammacorrect($img, 1, 1); 18$color = imagecolorat($img, 0, 0); 19var_dump($color === $blacktransparent); 20imagedestroy($img); 21?> 22--EXPECT-- 23bool(true) 24
