From 30b303743df5a774e99938d3f4f21c9536b067ab Mon Sep 17 00:00:00 2001
From: =?utf8?q?Michel=20D=C3=A4nzer?= <michel.daenzer@amd.com>
Date: Thu, 6 Sep 2012 17:53:04 +0200
Subject: [PATCH] radeonsi: Handle TGSI_SEMANTIC_FOG.
MIME-Version: 1.0
Content-Type: text/plain; charset=utf8
Content-Transfer-Encoding: 8bit

Fixes exponential fog. The pixel shaders for linear fog seem to get
miscompiled still somehow.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
---
 src/gallium/drivers/radeonsi/radeonsi_shader.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c
index 1c330b5fd3a..9fc344607cb 100644
--- a/src/gallium/drivers/radeonsi/radeonsi_shader.c
+++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c
@@ -538,6 +538,7 @@ static void si_llvm_emit_epilogue(struct lp_build_tgsi_context * bld_base)
 					color_count++;
 				}
 				break;
+			case TGSI_SEMANTIC_FOG:
 			case TGSI_SEMANTIC_GENERIC:
 				target = V_008DFC_SQ_EXP_PARAM + param_count;
 				shader->output[i].param_offset = param_count;
-- 
2.30.2