i965: refactor sample mask calculation

Haswell needs a copy of the sample mask in 3DSTATE_PS; this makes that
convenient.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i965/gen7_blorp.cpp b/src/mesa/drivers/dri/i965/gen7_blorp.cpp
index 3e97821ed6f..1af869b6b87 100644
--- a/src/mesa/drivers/dri/i965/gen7_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/gen7_blorp.cpp
@@ -864,7 +864,7 @@ gen7_blorp_exec(struct brw_context *brw,
 
    uint32_t prog_offset = params->get_wm_prog(brw, &prog_data);
    gen6_emit_3dstate_multisample(brw, params->num_samples);
-   gen6_emit_3dstate_sample_mask(brw, params->num_samples, 1.0, false, ~0u);
+   gen6_emit_3dstate_sample_mask(brw, params->num_samples > 1 ? (1 << params->num_samples) - 1 : 1);
    gen6_blorp_emit_state_base_address(brw, params);
    gen6_blorp_emit_vertices(brw, params);
    gen7_blorp_emit_urb_config(brw, params);