Package: python-pygame Version: 1.9.1release+dfsg-2 Severity: wishlist On Sat, Dec 24, 2011 at 3:19 PM, Jeff Breidenbach <j...@jab.org> wrote: > pygame.transform.get_smoothscale_backend() returns GENERIC and > pygame.transform.set_smoothscale_backend( 'MMX') throws an exception. > The reason is pygame is compiled with -D_NO_MMX_FOR_X86_64 > in Setup.in. According to random internet searching, this compile flag is > a workaround for an old SDL bug that has been fixed since libsdl1.2.10. > If so, let's please turn MMX scaling back on. Here's the note I found on > the internet. > > "If your CPU supports MMX and SSE instructions (if you have procfs, > see contents of /proc/cpuinfo), smooth stretching images should be working > swiftly. To check things out, run cgview with -i, and see what smooth scaling > “backend” is. If it's not what you expect, you need to compile pygame, after > removing -D_NO_MMX_FOR_X86_64 from CFLAGS for transform.c (edit > Setup.in and run config.py). You need to get a recent version of SDL > (>=1.2.10) if you do so, since _NO_MMX_FOR_X86_64 was introduced > as a workaround for a bug in SDL (see RedHat bugzilla #487720)" > > I've tested this myself and it appears to work fine. The speed difference is > significant for my program. > > -Jeff
Hi Jeff, I'm filing a new bug report to keep track of progress on this. Please consider using reportbug or manually submitting a bug report via e-mail for any future requests, rather than directly contacting the maintainers/uploaders of a package. Have you already contacted the upstream pygame developers and notified them of this issue? Ideally, instead of applying another Debian-specific patch to pygame, you should ask upstream to remove -D_NO_MMX_FOR_X86_64 prior to their next release so that all downstream distributions can benefit from the change, not just Debian. Vincent -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
