From ee0984e299f7a48fbd3a0172ec9c471e0e8cbb92 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Tue, 18 Aug 2009 17:39:55 -0600 Subject: [PATCH] mesa: when emitting vertex program fog, set yzw=0,0,1 Fixes piglit fp-fog failure with gallium. --- src/mesa/main/ffvertex_prog.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c index 80dde4b5aa2..8e21a27f897 100644 --- a/src/mesa/main/ffvertex_prog.c +++ b/src/mesa/main/ffvertex_prog.c @@ -1306,7 +1306,9 @@ static void build_fog( struct tnl_program *p ) input = swizzle1(register_input(p, VERT_ATTRIB_FOG), X); } + /* result.fog = {abs(f),0,0,1}; */ emit_op1(p, OPCODE_ABS, fog, WRITEMASK_X, input); + emit_op1(p, OPCODE_MOV, fog, WRITEMASK_YZW, get_identity_param(p)); } -- 2.30.2