Mesa (8.0): r600g: fix VS fog export

[Dave Airlie]

Module: Mesa
Branch: 8.0
Commit: 84d2bb4dfc19a9a4771177aef2e667673ea4b6d2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=84d2bb4dfc19a9a4771177aef2e667673ea4b6d2

Author: Vadim Girlin <vadimgirlin at gmail.com>
Date:   Mon Jan 23 13:47:51 2012 +0400

r600g: fix VS fog export

Signed-off-by: Vadim Girlin <vadimgirlin at gmail.com>
Signed-off-by: Dave Airlie <airlied at redhat.com>
(cherry picked from commit 13daa059c01d6dd05064e82cf67cba9cc5fe79db)

---

 src/gallium/drivers/r600/r600_shader.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index e01871d..a32288c 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1158,6 +1158,11 @@ static int r600_shader_from_tgsi(struct r600_pipe_context * rctx, struct r600_pi
 					output[j].type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_PARAM;
 				}
 				break;
+			case TGSI_SEMANTIC_FOG:
+				output[j].swizzle_y = 4; /* 0 */
+				output[j].swizzle_z = 4; /* 0 */
+				output[j].swizzle_w = 5; /* 1 */
+				break;
 			}
 			break;
 		case TGSI_PROCESSOR_FRAGMENT: