From 32e1e591467d9a28c2ac4d2e17af7be2dc429d43 Mon Sep 17 00:00:00 2001
From: "Xiang, Haihao" <haihao.xiang@intel.com>
Date: Wed, 1 Dec 2010 16:59:36 +0800
Subject: i965: add support for polygon mode on Sandybridge.

This fixes some mesa demos such as fslight/engine in wireframe mode.
---
 src/mesa/drivers/dri/i965/gen6_sf_state.c | 42 +++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

(limited to 'src/mesa/drivers/dri/i965/gen6_sf_state.c')

diff --git a/src/mesa/drivers/dri/i965/gen6_sf_state.c b/src/mesa/drivers/dri/i965/gen6_sf_state.c
index 471067e8f0..06ac5d49a0 100644
--- a/src/mesa/drivers/dri/i965/gen6_sf_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_sf_state.c
@@ -99,6 +99,48 @@ upload_sf_state(struct brw_context *brw)
    if (ctx->Polygon.OffsetFill)
        dw2 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_SOLID;
 
+   if (ctx->Polygon.OffsetLine)
+       dw2 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_WIREFRAME;
+
+   if (ctx->Polygon.OffsetPoint)
+       dw2 |= GEN6_SF_GLOBAL_DEPTH_OFFSET_POINT;
+
+   switch (ctx->Polygon.FrontMode) {
+   case GL_FILL:
+       dw2 |= GEN6_SF_FRONT_SOLID;
+       break;
+
+   case GL_LINE:
+       dw2 |= GEN6_SF_FRONT_WIREFRAME;
+       break;
+
+   case GL_POINT:
+       dw2 |= GEN6_SF_FRONT_POINT;
+       break;
+
+   default:
+       assert(0);
+       break;
+   }
+
+   switch (ctx->Polygon.BackMode) {
+   case GL_FILL:
+       dw2 |= GEN6_SF_BACK_SOLID;
+       break;
+
+   case GL_LINE:
+       dw2 |= GEN6_SF_BACK_WIREFRAME;
+       break;
+
+   case GL_POINT:
+       dw2 |= GEN6_SF_BACK_POINT;
+       break;
+
+   default:
+       assert(0);
+       break;
+   }
+
    /* _NEW_SCISSOR */
    if (ctx->Scissor.Enabled)
       dw3 |= GEN6_SF_SCISSOR_ENABLE;
-- 
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