From: Nicolai Hähnle <nicolai.haeh...@amd.com>
At least st/mesa ensures this, so I'd rather not handle deviations in radeonsi.
---
src/gallium/drivers/radeonsi/si_state.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/gallium/drivers/radeonsi/si_state.c
b/src/gallium/drivers/radeonsi/si_state.c
index ee92f15..df6b610 100644
--- a/src/gallium/drivers/radeonsi/si_state.c
+++ b/src/gallium/drivers/radeonsi/si_state.c
@@ -3193,6 +3193,12 @@ static void si_emit_sample_mask(struct si_context *sctx,
struct r600_atom *atom)
struct radeon_winsys_cs *cs = sctx->b.gfx.cs;
unsigned mask = sctx->sample_mask.sample_mask;
+ /* Needed for line and polygon smoothing as well as for the Polaris
+ * small primitive filter. We expect the state tracker to take care of
+ * this for us.
+ */
+ assert(mask == 0xffff || sctx->framebuffer.nr_samples > 1);
+
radeon_set_context_reg_seq(cs, R_028C38_PA_SC_AA_MASK_X0Y0_X1Y0, 2);
radeon_emit(cs, mask | (mask << 16));
radeon_emit(cs, mask | (mask << 16));
--
2.7.4
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