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-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_tcs.cpp7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_tcs.cpp b/src/mesa/drivers/dri/i965/brw_vec4_tcs.cpp
index 8bd150ad1b4..4bc3be70188 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_tcs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_tcs.cpp
@@ -406,6 +406,13 @@ vec4_tcs_visitor::nir_emit_intrinsic(nir_intrinsic_instr *instr)
}
}
+ unsigned first_component = nir_intrinsic_component(instr);
+ if (first_component) {
+ assert(swiz == BRW_SWIZZLE_XYZW);
+ swiz = BRW_SWZ_COMP_OUTPUT(first_component);
+ mask = mask << first_component;
+ }
+
emit_urb_write(swizzle(value, swiz), mask,
imm_offset, indirect_offset);
break;