From: Ardinartsev Nikita Date: Mon, 16 May 2016 23:27:22 +0000 (+0300) Subject: i965/urb: fixes division by zero X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2a8aa1e3deb99a1ae16d942318da648c1327ece5;p=mesa.git i965/urb: fixes division by zero Fixes regression introduced by af5ca43f2676bff7499f93277f908b681cb821d0 Reviewed-by: Matt Turner Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95419 --- diff --git a/src/mesa/drivers/dri/i965/gen7_urb.c b/src/mesa/drivers/dri/i965/gen7_urb.c index a412a4263b3..6d9aa028e95 100644 --- a/src/mesa/drivers/dri/i965/gen7_urb.c +++ b/src/mesa/drivers/dri/i965/gen7_urb.c @@ -292,25 +292,11 @@ gen7_upload_urb(struct brw_context *brw) if (remaining_space > total_wants) remaining_space = total_wants; if (remaining_space > 0) { - unsigned vs_additional = (unsigned) - roundf(vs_wants * (((float) remaining_space) / total_wants)); - vs_chunks += vs_additional; - remaining_space -= vs_additional; - total_wants -= vs_wants; - - unsigned hs_additional = (unsigned) - round(hs_wants * (((double) remaining_space) / total_wants)); - hs_chunks += hs_additional; - remaining_space -= hs_additional; - total_wants -= hs_wants; - - unsigned ds_additional = (unsigned) - round(ds_wants * (((double) remaining_space) / total_wants)); - ds_chunks += ds_additional; - remaining_space -= ds_additional; - total_wants -= ds_wants; - - gs_chunks += remaining_space; + float ratio = ((float) remaining_space) / total_wants; + vs_chunks += lroundf(vs_wants * ratio); + hs_chunks += lroundf(hs_wants * ratio); + ds_chunks += lroundf(ds_wants * ratio); + gs_chunks += lroundf(gs_wants * ratio); } /* Sanity check that we haven't over-allocated. */