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Fix #77200: imagecropauto(…, GD_CROP_SIDES) crops left but not right

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We apply the upstream patch[1].

[1] <https://github.com/libgd/libgd/commit/6613094e5d218dc4d4372757aef5e58c6462a9f7>
This commit is contained in:
Christoph M. Becker
2018-11-25 19:00:50 +01:00
parent b47b8886dd
commit a1aaec08b5
3 changed files with 40 additions and 1 deletions
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NEWS
+2
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@@ -12,6 +12,8 @@ PHP NEWS
- GD:
. Fixed bug #77195 (Incorrect error handling of imagecreatefromjpeg()). (cmb)
. Fixed bug #77198 (auto cropping has insufficient precision). (cmb)
. Fixed bug #77200 (imagecropauto(…, GD_CROP_SIDES) crops left but not right).
(cmb)
- Sockets:
. Fixed bug #77136 (Unsupported IPV6_RECVPKTINFO constants on macOS).
ext/gd/libgd/gd_crop.c
+1 -1
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@@ -315,7 +315,7 @@ static int gdGuessBackgroundColorFromCorners(gdImagePtr im, int *color)
} else if (tl == tr || tl == bl || tl == br) {
*color = tl;
return 2;
} else if (tr == bl) {
} else if (tr == bl || tr == br) {
*color = tr;
return 2;
} else if (br == bl) {
ext/gd/tests/bug77200.phpt
+37
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@@ -0,0 +1,37 @@
--TEST--
Bug #77200 (imagecropauto(…, GD_CROP_SIDES) crops left but not right)
--SKIPIF--
<?php
if (!extension_loaded('gd')) die('skip gd extension not available');
if (!GD_BUNDLED) die('upstream bugfix has not been released');
?>
--FILE--
<?php
$orig = imagecreatetruecolor(8, 8);
$red = imagecolorallocate($orig, 255, 0, 0);
$green = imagecolorallocate($orig, 0, 255, 0);
$blue = imagecolorallocate($orig, 0, 0, 255);
imagefilledrectangle($orig, 0, 0, 3, 3, $green); // tl
imagefilledrectangle($orig, 4, 0, 7, 3, $red); // tr
imagefilledrectangle($orig, 0, 4, 3, 7, $green); // bl
imagefilledrectangle($orig, 4, 4, 7, 7, $blue); // br
$cropped = imagecropauto($orig, IMG_CROP_SIDES);
var_dump(imagesx($cropped));
imagefilledrectangle($orig, 0, 0, 3, 3, $red); // tl
imagefilledrectangle($orig, 4, 0, 7, 3, $green); // tr
imagefilledrectangle($orig, 0, 4, 3, 7, $blue); // bl
imagefilledrectangle($orig, 4, 4, 7, 7, $green); // br
$cropped = imagecropauto($orig, IMG_CROP_SIDES);
var_dump(imagesx($cropped));
?>
===DONE===
--EXPECT--
int(4)
int(4)
===DONE===