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-rw-r--r--src/mesa/drivers/dri/i965/brw_cubemap_normalize.cpp16
1 files changed, 11 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_cubemap_normalize.cpp b/src/mesa/drivers/dri/i965/brw_cubemap_normalize.cpp
index 9e149f96f53..46155fb43af 100644
--- a/src/mesa/drivers/dri/i965/brw_cubemap_normalize.cpp
+++ b/src/mesa/drivers/dri/i965/brw_cubemap_normalize.cpp
@@ -32,6 +32,7 @@
#include "glsl/glsl_types.h"
#include "glsl/ir.h"
+#include "program/prog_instruction.h" /* For WRITEMASK_* */
class brw_cubemap_normalize_visitor : public ir_hierarchical_visitor {
public:
@@ -88,11 +89,16 @@ brw_cubemap_normalize_visitor::visit_leave(ir_texture *ir)
glsl_type::float_type,
expr, NULL);
- deref = new(mem_ctx) ir_dereference_variable(var);
- ir->coordinate = new(mem_ctx) ir_expression(ir_binop_mul,
- ir->coordinate->type,
- deref,
- expr);
+ /* coordinate.xyz *= expr */
+ assign = new(mem_ctx) ir_assignment(
+ new(mem_ctx) ir_dereference_variable(var),
+ new(mem_ctx) ir_expression(ir_binop_mul,
+ ir->coordinate->type,
+ new(mem_ctx) ir_dereference_variable(var),
+ expr));
+ assign->write_mask = WRITEMASK_XYZ;
+ base_ir->insert_before(assign);
+ ir->coordinate = new(mem_ctx) ir_dereference_variable(var);
progress = true;
return visit_continue;