<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - GL Excess demo renders incorrectly on nv43" href="https://bugs.freedesktop.org/show_bug.cgi?id=92306#c13">Comment # 13</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - GL Excess demo renders incorrectly on nv43" href="https://bugs.freedesktop.org/show_bug.cgi?id=92306">bug 92306</a> from <a class="email" href="mailto:randrik@mail.ru" title="Andrew Randrianasulu <randrik@mail.ru>"> Andrew Randrianasulu</a> <pre>(In reply to Ilia Mirkin from <a href="show_bug.cgi?id=92306#c12">comment #12</a>) > (In reply to Andrew Randrianasulu from <a href="show_bug.cgi?id=92306#c11">comment #11</a>) > > "Mismatched color and zeta formats, ignoring zeta." > > Yeah, as I suspected... unfortunately there's not a ton you can do besides > fixing the issue. The problem is that you can't render to a 32-bit color > format (e.g. RGBA8) while using a 16-bit zeta (Z16), and conversely you > can't render to a 16-bit color format (e.g. RGB565) while using a 32-bit > zeta (Z24S8). > > My current solution to this problem is to just not set the zeta buffer and > move on with life. This leads to incorrect rendering, but at least no hangs. > > The proper solution is to have 2 depth textures that you copy to and fro and > set the "right" one for the given color format. Ideally while minimizing the > number of copies. Hm, but in my case it apparently worked fine... so, may be check is overrestrictive? I also tried to apply this path on top of mesa version indicated above ((git-93161be) ----patch--- diff --git a/src/gallium/drivers/nouveau/nv30/nv30_state.c b/src/gallium/drivers/nouveau/nv30/nv30_state.c index fd604c2..cceedfd 100644 --- a/src/gallium/drivers/nouveau/nv30/nv30_state.c +++ b/src/gallium/drivers/nouveau/nv30/nv30_state.c @@ -382,7 +382,7 @@ nv30_set_framebuffer_state(struct pipe_context *pipe, (util_format_get_blocksize(fb->zsbuf->format) > 2) != (util_format_get_blocksize(fb->cbufs[0]->format) > 2)) { nv30->framebuffer.zsbuf = NULL; - debug_printf("Mismatched color and zeta formats, ignoring zeta.\n"); + debug_printf("Mismatched color %d and zeta %d formats, ignoring zeta.\n", fb->cbufs[0]->format, fb->zsbuf->format); } } } --------end----- and got this in terminal: "Mismatched color 1 and zeta 16 formats, ignoring zeta." This is a bit strange, this demo from ~2002 era, and apparently was working fine on older nvidia hardware. And on nouveau, until this commit. I will retest just for making sure it doesn't flood my dmesg with errors ....</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>