<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - UE4Editor crash after load project" href="https://bugs.freedesktop.org/show_bug.cgi?id=89416#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - UE4Editor crash after load project" href="https://bugs.freedesktop.org/show_bug.cgi?id=89416">bug 89416</a> from <a class="email" href="mailto:mattst88@gmail.com" title="Matt Turner <mattst88@gmail.com>"> Matt Turner</a> <pre>(In reply to Jason Ekstrand from <a href="show_bug.cgi?id=89416#c5">comment #5</a>) > (In reply to Uriy Zhuravlev from <a href="show_bug.cgi?id=89416#c4">comment #4</a>) > > Ok, alignment... maybe I can fix it. > > Uriy, > The problem here is that the code originally assumed that the destination > would always be nicely aligned but the source may not. When rgba8_copy > function started getting used for texture *download* via ReadPixels and > GetTexImage the assumption now fails and it is the source that is aligned > and not the destination. To fix this we need to do one of two things. > Either a) make the rgba8_copy function use unaligned reads (which would b > slower) or b) make two versions of the rgba8_copy function: one for upload > and one for download. Basically, this all stems from the fact that there's no guarantee that the pointer given to glReadPixels/glGetTexImage is suitably aligned? Do you have time to fix this before the release on Friday? Trying to figure if I need to work on this.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>