--TEST--
Bug #24155 (gdImageRotate270 rotation problem).
--SKIPIF--
<?php
	if (!extension_loaded('gd')) {
		die("skip gd extension not available\n");
	}
	if (!function_exists("imagerotate")) die("skip requires bundled GD library\n");
?>
--FILE--
<?php
	$dest = dirname(realpath(__FILE__)) . '/bug24155.png';
	@unlink($dest);

	$im = imagecreatetruecolor(30, 50);
	imagefill($im, 0, 0, (16777215 - 255));
	$im = imagerotate($im, 270, 255);
	imagepng($im, $dest);

	$im2 = imagecreatefrompng($dest);

	// Uniform fill + n x 90degrees rotation , the color value does not change
	$col = imagecolorat($im2, 20, 20);
	// 16777215 - 255 = 16776960
	echo "$col\n";

	@unlink($dest);
?>
--EXPECT--
16776960