From: Brian <brian.paul@tungstengraphics.com>
Date: Thu, 8 Nov 2007 16:33:13 +0000 (-0700)
Subject: set sampler state for shadow test
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a736670219c67a45483f58b07ab9d55095efdbbd;p=mesa.git

set sampler state for shadow test
---

diff --git a/src/mesa/state_tracker/st_atom_sampler.c b/src/mesa/state_tracker/st_atom_sampler.c
index bdc60244776..67a91590691 100644
--- a/src/mesa/state_tracker/st_atom_sampler.c
+++ b/src/mesa/state_tracker/st_atom_sampler.c
@@ -153,6 +153,14 @@ update_samplers(struct st_context *st)
 
 	 sampler.max_anisotropy = texobj->MaxAnisotropy;
 
+         /* only care about ARB_shadow, not SGI shadow */
+         if (texobj->CompareMode == GL_COMPARE_R_TO_TEXTURE) {
+            sampler.compare = 1;
+            sampler.compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE;
+            sampler.compare_func
+               = st_compare_func_to_pipe(texobj->CompareFunc);
+         }
+
          /* XXX more sampler state here */
       }