From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Fri, 7 Nov 2008 17:23:22 +0000 (-0700)
Subject: mesa: use _bfc0 instead of _col0 when building back face lighting.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=eb459814b7e7adc8b5f0062128f4ea4ff68b07cf;p=mesa.git

mesa: use _bfc0 instead of _col0 when building back face lighting.

cherry-picked from master: 4550b0562d5b59890fccb0e7eb0dbef967d1ccf9
---

diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c
index dff4306322d..9ac8328ef0e 100644
--- a/src/mesa/main/ffvertex_prog.c
+++ b/src/mesa/main/ffvertex_prog.c
@@ -1308,14 +1308,13 @@ static void build_lighting( struct tnl_program *p )
             }
             else if (!p->state->material_shininess_is_zero) {
                emit_op1(p, OPCODE_LIT, lit, 0, dots);
-               emit_op2(p, OPCODE_ADD, _col0, 0, ambient, _col0);
+               emit_op2(p, OPCODE_ADD, _bfc0, 0, ambient, _bfc0);
             } 
             else {
                emit_degenerate_lit(p, lit, dots);
-               emit_op2(p, OPCODE_ADD, _col0, 0, ambient, _col0);
+               emit_op2(p, OPCODE_ADD, _bfc0, 0, ambient, _bfc0);
             }
 
-	    emit_op2(p, OPCODE_ADD, _bfc0, 0, ambient, _bfc0);
 	    emit_op3(p, OPCODE_MAD, res0, mask0, swizzle1(lit,Y), diffuse, _bfc0);
 	    emit_op3(p, OPCODE_MAD, res1, mask1, swizzle1(lit,Z), specular, _bfc1);