Bug #79068 [Asn->Csd]: gdTransformAffineCopy() changes interpolation method

Edit report at https://bugs.php.net/bug.php?id=79068&edit=1 ID: 79068 Updated by: cmb@php.net Reported by: cmb@php.net Summary: gdTransformAffineCopy() changes interpolation method -Status: Assigned +Status: Closed Type: Bug Package: GD related Operating System: * PHP Version: 7.3Git-2020-01-06 (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=4bec59f1751d9d1e302465b68cceffb8df93a7be Log: Fix #79068: gdTransformAffineCopy() changes interpolation method Previous Comments: ------------------------------------------------------------------------ [2020-01-06 09:28:40] cmb@php.net Description: ------------ See <https://github.com/libgd/libgd/issues/585>. Test script: --------------- <?php $src = imagecreatetruecolor(100, 100); imagefilledrectangle($src, 0, 0, 99, 99, 0xffffff); imageline($src, 10, 10, 90, 90, 0x000000); imagesetinterpolation($src, IMG_BSPLINE); $dst1 = imagerotate($src, 80, 0xffffff); imagepng($dst1, 'rot_exp.png'); imageaffine($src, [1, 1, 1, 1, 1, 1]); $dst2 = imagerotate($src, 80, 0xffffff); imagepng($dst2, 'rot_act.png'); Expected result: ---------------- both images are identical Actual result: -------------- both images are similar, but not identical ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79068&edit=1