Hi all, This workaround just helps me to avoid the graphical corruption on SNB but I not sure is it good idea.
Regards, Andrii. On Wed, Aug 15, 2018 at 6:20 PM, <[email protected]> wrote: > From: Andrii Simiklit <[email protected]> > > When the SVBI Payload Enable is false I guess the register R1.4 > which contains the Maximum Streamed Vertex Buffer Index is filled by zero > and GS stops to write transform feedback when the transform feedback > is not active. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107579 > Signed-off-by: Andrii Simiklit <[email protected]> > --- > src/mesa/drivers/dri/i965/genX_state_upload.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/src/mesa/drivers/dri/i965/genX_state_upload.c > b/src/mesa/drivers/dri/i965/genX_state_upload.c > index ea5ad55..0f82500 100644 > --- a/src/mesa/drivers/dri/i965/genX_state_upload.c > +++ b/src/mesa/drivers/dri/i965/genX_state_upload.c > @@ -2806,7 +2806,7 @@ genX(upload_gs_state)(struct brw_context *brw) > #if GEN_GEN < 7 > gs.SOStatisticsEnable = true; > if (gs_prog->info.has_transform_feedback_varyings) > - gs.SVBIPayloadEnable = true; > + gs.SVBIPayloadEnable = _mesa_is_xfb_active_and_unpaused(ctx); > > /* GEN6_GS_SPF_MODE and GEN6_GS_VECTOR_MASK_ENABLE are enabled > as it > * was previously done for gen6. > -- > 2.7.4 > >
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