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authorBrian Paul <brianp@vmware.com>2009-08-18 17:39:55 -0600
committerBrian Paul <brianp@vmware.com>2009-08-18 17:39:55 -0600
commitee0984e299f7a48fbd3a0172ec9c471e0e8cbb92 (patch)
tree1ccc413c8fe2c71989322ca0fcab42165482defa /src/mesa
parente8957f4800e8257ec6cdff88b87a69bbceb7d0c6 (diff)
mesa: when emitting vertex program fog, set yzw=0,0,1
Fixes piglit fp-fog failure with gallium.
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/main/ffvertex_prog.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c
index 80dde4b5aa..8e21a27f89 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));
}