<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - Add screenshooting based testing" href="https://bugs.freedesktop.org/show_bug.cgi?id=83987#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - Add screenshooting based testing" href="https://bugs.freedesktop.org/show_bug.cgi?id=83987">bug 83987</a> from <a class="email" href="mailto:ppaalanen@gmail.com" title="Pekka Paalanen <ppaalanen@gmail.com>"> Pekka Paalanen</a> <pre>As Derek pointed out in IRC, GL is not pixel-perfect between implementations, so we cannot use checksumming there. I wonder if it would be feasible to generate the reference images with the Pixman renderer at test runtime, se don't need to store reference images in the repository? Listing checksums for each GL implementation is not feasible. I also would not want to clutter Weston repository with reference images, as that would likely be a lot of data. Some plan for the GL-renderer would be needed. Using Pixman generated images as the reference will limit GL testing to features that Pixman renderer supports, but maybe that is enough? This also reminds us, that we need to verify if the Pixman rendered results are really intended to be pixel-perfect between Pixman releases by the Pixman upstream. If we cannot do checksumming at all, I fear we need a reference image repository.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>