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-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_emit.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c
index 438fcc7178d..2d1d011e553 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c
@@ -125,23 +125,22 @@ void emit_delta_xy(struct brw_compile *p,
{
struct brw_reg r1 = brw_vec1_grf(1, 0);
+ if (mask == 0)
+ return;
+
+ assert(mask == WRITEMASK_XY);
+
/* Calc delta X,Y by subtracting origin in r1 from the pixel
* centers.
*/
- if (mask & WRITEMASK_X) {
- brw_ADD(p,
- dst[0],
- retype(arg0[0], BRW_REGISTER_TYPE_UW),
- negate(r1));
- }
-
- if (mask & WRITEMASK_Y) {
- brw_ADD(p,
- dst[1],
- retype(arg0[1], BRW_REGISTER_TYPE_UW),
- negate(suboffset(r1,1)));
-
- }
+ brw_ADD(p,
+ dst[0],
+ retype(arg0[0], BRW_REGISTER_TYPE_UW),
+ negate(r1));
+ brw_ADD(p,
+ dst[1],
+ retype(arg0[1], BRW_REGISTER_TYPE_UW),
+ negate(suboffset(r1,1)));
}
void emit_wpos_xy(struct brw_wm_compile *c,