https://bugs.freedesktop.org/show_bug.cgi?id=48131 Andreas Boll <andreas.boll.dev@xxxxxxxxx> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |WORKSFORME --- Comment #6 from Andreas Boll <andreas.boll.dev@xxxxxxxxx> 2012-08-08 18:03:21 UTC --- (In reply to comment #0) > This WebGL testcase just creates a huge blank texture and draws a quad with it: > > http://people.mozilla.org/~bjacob/webgltexture2D5k.html > > You should see only black. But here I occasionally see some corruption with > vertical yellow stripes on a rectangular part of the image. Reloading the page > a few times makes the problem go away. > > The testcase uses webgl.texImage2D with null pixel data, which causes the > browser to calloc() a buffer and pass it to glTexImage2D. So it's not just an > uninitialized texture. The application is doing what's right to properly > initialize the texture with zero'd image data. > > If there is any risk that this might be exposing uninitialized texture memory, > then please treat this as a high priority, as we'd have to find a work around. > > FWIW, on a different proprietary platform, this does expose video memory and > forced us to artificially limit the max texture size to 4k. With current firefox nightly 20120808 and current mesa 8.1-devel (git-be42a45) this site works for me. I see only black. WebGL Renderer: X.Org -- Gallium 0.4 on AMD RV770 -- 2.1 Mesa 8.1-devel (git-be42a45) Feel free to reopen this report if the issue persists. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
