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archived-php-src/ext/gd/tests/bug72913.phpt
Michael Orlitzky 065b4ec125 ext/gd/tests: backport optional PNG support
- Three of our gd tests could be skipped with a message about requiring
bundled GD, but those tests don't actually require bundled GD. We
update the messages to mention the specific functions that are
required.

- add SKIPIF stanzas for missing PNG support

The bundled libgd always has PNG support, but an external one may not.

- imagerotate() is always available

Following 59ec80c5, the imagerotate() function is always available. We
may therefore remove its function_exists() checks without harm.

close GH-17894
2025-02-23 16:01:30 +00:00

31 lines
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PHP

--TEST--
Bug #72913 (imagecopy() loses single-color transparency on palette images)
--EXTENSIONS--
gd
--SKIPIF--
<?php
if (!(imagetypes() & IMG_PNG)) {
die("skip No PNG support");
}
?>
--FILE--
<?php
$base64 = 'iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAIAAACRXR/mAAAABnRSTlMAAAAAAABu'
. 'pgeRAAAAVklEQVRYw+3UQQqAMBAEwf3/p9eTBxEPiWAmWMU8oGFJqgAAuOpzWTX3'
. 'xQUti+uRJTZ9V5aY1bOTFZLV7yZr9zt6ibv/qPXfrMpsGipbIy7oqQ8AYJED1plD'
. 'y5PCu2sAAAAASUVORK5CYII=';
$src = imagecreatefromstring(base64_decode($base64));
$dst = imagecreate(50, 50);
$transparent = imagecolorallocatealpha($dst, 255, 255, 255, 127);
imagealphablending($dst, false);
imagesavealpha($dst, true);
imagecopy($dst, $src, 0,0, 0,0, 50,50);
include_once __DIR__ . '/func.inc';
test_image_equals_file(__DIR__ . '/bug72913.png', $dst);
?>
--EXPECT--
The images are equal.