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i965/urb: fixes division by zero

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Fixes regression introduced by af5ca43f26

Reviewed-by: Matt Turner <mattst88@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95419
This commit is contained in:
Ardinartsev Nikita
2016-05-17 02:27:22 +03:00
committed by Matt Turner
parent caab3cd536
commit 2a8aa1e3de
1 changed files with 5 additions and 19 deletions
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src/mesa/drivers/dri/i965/gen7_urb.c
+5 -19
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@@ -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. */