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-rw-r--r--src/mesa/shader/prog_parameter.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/shader/prog_parameter.c b/src/mesa/shader/prog_parameter.c
index adffafdd713..2c8a3407634 100644
--- a/src/mesa/shader/prog_parameter.c
+++ b/src/mesa/shader/prog_parameter.c
@@ -532,6 +532,10 @@ _mesa_lookup_parameter_constant(const struct gl_program_parameter_list *list,
}
}
}
+ /* smear last value to remaining positions */
+ for (; j < 4; j++)
+ swz[j] = swz[j-1];
+
if (match == vSize) {
*posOut = i;
*swizzleOut = MAKE_SWIZZLE4(swz[0], swz[1], swz[2], swz[3]);