Bug #64641 [Opn->Ana]: imagefilledpolygon doesn't draw horizontal line

Edit report at https://bugs.php.net/bug.php?id=64641&edit=1 ID: 64641 Updated by: cmb@php.net Reported by: temposeb at free dot fr Summary: imagefilledpolygon doesn't draw horizontal line -Status: Open +Status: Analyzed Type: Bug Package: GD related -Operating System: Win XP Pro SP3 +Operating System: * -PHP Version: 5.3.24 +PHP Version: 5.6.11 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: I can confirm this issue. The solution would be simple: just handle the special case of 1D polygons by delegating to gdImagePolygon(); there's nothing to fill anyway. The attached patch "git-am" does this, but it also breaks several PHPTs. This demands further investigation on whether this is caused by major behavioral changes (it doesn't appear so), and maybe some discussion. Previous Comments: ------------------------------------------------------------------------ [2015-07-20 22:06:46] cmb@php.net The following patch has been added/updated: Patch Name: git-am Revision: 1437430006 URL: https://bugs.php.net/patch-display.php?bug=64641&patch=git-am&revision=1437430006 ------------------------------------------------------------------------ [2013-04-12 19:08:46] temposeb at free dot fr Description: ------------ At worst imagefilledpolygon( ) doesn't render at all object composed exclusively of horizontal lines. No problem with vertical/diagonal lines or imagepolygon( ). Test script: --------------- $image = imagecreatetruecolor(640, 480) ; // Vertical line, drawn $points = array(100, 100, 100, 200, 100, 300) ; imagefilledpolygon($image, $points, 3, 0xFFFF00) ; // Horizontal line, not drawn $points = array(300, 200, 400, 200, 500, 200) ; imagefilledpolygon($image, $points, 3, 0xFFFF00) ; header('Content-Type: image/png') ; imagepng($image) ; Expected result: ---------------- Two objects rendered : 1 vertical line, 1 horizontal line. Actual result: -------------- One object rendered : 1 vertical line. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=64641&edit=1