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freedreno/a6xx: fix vsc assert

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Fixes a debug build assert seeing with an android app.  Not quite sure
which path was passing us draw_info w/ instance_count==0.  But we should
just treat non-instanced draws as having a single instance.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5091>
This commit is contained in:
Rob Clark 2020-05-18 14:14:51 -07:00 • committed by Marge Bot
parent f6f7bc2979
commit 11470fcde2
1 changed files with 1 additions and 2 deletions
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src/gallium/drivers/freedreno/a6xx/fd6_vsc.c
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@ -114,12 +114,11 @@ draw_stream_size_bits(const struct pipe_draw_info *info, unsigned num_bins,
unsigned prim_strm_bits)
{
unsigned ndwords = prim_strm_bits / dword;
assert(info->instance_count > 0);
return (bitfield_size_bits(num_bins) /* bitfield of bins */
+ 1 /* last-instance-bit */
+ number_size_bits(ndwords) /* size of corresponding prim strm */
+ 1 /* checksum */
) * info->instance_count;
) * MAX2(1, info->instance_count);
}
void