[Mesa-dev] [PATCH 3/3] i965: write layer if gl_Layer is used in VS

[Jordan Justen]

This is enabled by the AMD_vertex_shader_layer extension.

Signed-off-by: Jordan Justen <jordan.l.jus...@intel.com>
---
 src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp 
b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 2fb8482..84abffd 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -2487,6 +2487,10 @@ vec4_visitor::emit_psiz_and_flags(struct brw_reg reg)
          emit(MOV(brw_writemask(reg, WRITEMASK_W),
                   src_reg(output_reg[VARYING_SLOT_PSIZ])));
       }
+      if (prog_data->vue_map.slots_valid & VARYING_BIT_LAYER) {
+         emit(MOV(retype(brw_writemask(reg, WRITEMASK_Y), BRW_REGISTER_TYPE_D),
+                  src_reg(output_reg[VARYING_SLOT_LAYER])));
+      }
    }
 }
 
-- 
1.7.10.4

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