From: Xiang, Haihao <haihao.xiang@intel.com>
Date: Tue, 11 Nov 2008 05:36:32 +0000 (+0800)
Subject: mesa: restore the negate flag of dots in build_lighting.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5cfb0a4087352c22a13ca55a98ae3e2e420d4b52;p=mesa.git

mesa: restore the negate flag of dots in build_lighting.

Dots is re-used if more than one light is enabled. Previously
the negate flag of dots may affect next light.
---

diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c
index 9ac8328ef0e..b87c443fecf 100644
--- a/src/mesa/main/ffvertex_prog.c
+++ b/src/mesa/main/ffvertex_prog.c
@@ -1318,6 +1318,9 @@ static void build_lighting( struct tnl_program *p )
 	    emit_op3(p, OPCODE_MAD, res0, mask0, swizzle1(lit,Y), diffuse, _bfc0);
 	    emit_op3(p, OPCODE_MAD, res1, mask1, swizzle1(lit,Z), specular, _bfc1);
 
+            /* restore negate flag for next lighting */
+            dots = negate(dots);
+
 	    release_temp(p, ambient);
 	    release_temp(p, diffuse);
 	    release_temp(p, specular);