Bug #77200 [Asn->Csd]: imagecropauto(…, GD_CROP_SIDES) crops left but not right

Edit report at https://bugs.php.net/bug.php?id=77200&edit=1 ID: 77200 Updated by: cmb@php.net Reported by: cmb@php.net Summary: imagecropauto(…, GD_CROP_SIDES) crops left but not right -Status: Assigned +Status: Closed Type: Bug Package: GD related Operating System: * PHP Version: 7.2Git-2018-11-25 (Git) Assigned To: cmb Block user comment: N Private report: N New Comment: Automatic comment on behalf of cmbecker69@gmx.de Revision: http://git.php.net/?p=php-src.git;a=commit;h=a1aaec08b5a3fc0f36cf91f034b4232285c6e793 Log: Fix #77200: imagecropauto(…, GD_CROP_SIDES) crops left but not right Previous Comments: ------------------------------------------------------------------------ [2018-11-25 17:02:56] cmb@php.net Description: ------------ Forwarding from upstream[1], since our bundled libgd is affected as well. The test script creates an image with four unicolored quadrants. If the same color is used for the top left and bottom left quadrants, imagecropauto(…, GD_CROP_SIDES) works as expected. If the same color is used for the top right and bottom right quadrants, imagecropauto(…, GD_CROP_SIDES) fails to crop, though. [1] <https://github.com/libgd/libgd/issues/486> Test script: --------------- <?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)); Expected result: ---------------- int(4) int(4) Actual result: -------------- int(4) int(8) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77200&edit=1