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-rw-r--r--src/mesa/drivers/dri/i915/i915_fragprog.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i915/i915_fragprog.c b/src/mesa/drivers/dri/i915/i915_fragprog.c
index c00ee415b6..7a9fb7f088 100644
--- a/src/mesa/drivers/dri/i915/i915_fragprog.c
+++ b/src/mesa/drivers/dri/i915/i915_fragprog.c
@@ -569,10 +569,14 @@ upload_program(struct i915_fragment_program *p)
if (inst->DstReg.CondMask == COND_TR) {
tmp = i915_get_utemp(p);
+ /* The KIL instruction discards the fragment if any component of
+ * the source is < 0. Emit an immediate operand of {-1}.xywz.
+ */
i915_emit_texld(p, get_live_regs(p, inst),
tmp, A0_DEST_CHANNEL_ALL,
0, /* use a dummy dest reg */
- swizzle(tmp, ONE, ONE, ONE, ONE), /* always */
+ negate(swizzle(tmp, ONE, ONE, ONE, ONE),
+ 1, 1, 1, 1),
T0_TEXKILL);
} else {
p->error = 1;