From 84b24efe8dc1bd67680f4d3c656fb4693fd405c1 Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Tue, 10 Mar 2009 19:29:45 -0600
Subject: [PATCH] swrast: fix bad optimization check

---
 src/mesa/swrast/s_texcombine.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mesa/swrast/s_texcombine.c b/src/mesa/swrast/s_texcombine.c
index 3b7bbfe2583..ef2db0dc7e3 100644
--- a/src/mesa/swrast/s_texcombine.c
+++ b/src/mesa/swrast/s_texcombine.c
@@ -604,7 +604,8 @@ texture_apply( const GLcontext *ctx,
       format = texUnit->_Current->DepthMode;
    }
 
-   if (texUnit->EnvMode != GL_REPLACE) {
+   /* skip chan->float conversion when not needed */
+   if (texUnit->EnvMode != GL_REPLACE || format != GL_RGBA) {
       /* convert GLchan colors to GLfloat */
       for (i = 0; i < n; i++) {
          rgba[i][RCOMP] = CHAN_TO_FLOAT(rgbaChan[i][RCOMP]);
-- 
2.30.2