From: Brian <brian.paul@tungstengraphics.com>
Date: Fri, 13 Jul 2007 18:26:09 +0000 (-0600)
Subject: set INTERP_CONSTANT when appropriate
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5810b40d6e9aae6b184879a99c67f83107fc6637;p=mesa.git

set INTERP_CONSTANT when appropriate

Not really signficant now since draw_flat stage copies the provoking
vertex color to all prim verts.
---

diff --git a/src/mesa/pipe/softpipe/sp_state_derived.c b/src/mesa/pipe/softpipe/sp_state_derived.c
index 34c893e396a..18dfb50e381 100644
--- a/src/mesa/pipe/softpipe/sp_state_derived.c
+++ b/src/mesa/pipe/softpipe/sp_state_derived.c
@@ -90,7 +90,11 @@ static void calculate_vertex_layout( struct softpipe_context *softpipe )
     */
    for (i = 1; i < FRAG_ATTRIB_TEX0; i++) {
       if (inputsRead & (i << i)) {
-	 EMIT_ATTR(frag_to_vf[i], i, INTERP_LINEAR);
+         if (softpipe->setup.flatshade
+             && (i == FRAG_ATTRIB_COL0 || i == FRAG_ATTRIB_COL1))
+            EMIT_ATTR(frag_to_vf[i], i, INTERP_CONSTANT);
+         else
+            EMIT_ATTR(frag_to_vf[i], i, INTERP_LINEAR);
       }
    }