Mesa (softpipe-opt): mesa/swrast: use one fewer divide in swrast' s choose_cube_face also

[Keith Whitwell]

Module: Mesa
Branch: softpipe-opt
Commit: 67d4a5b15cfd8583c19a5776b0ec1564b60239eb
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=67d4a5b15cfd8583c19a5776b0ec1564b60239eb

Author: Keith Whitwell <keithw at vmware.com>
Date:   Sun Aug 23 23:50:27 2009 +0100

mesa/swrast: use one fewer divide in swrast's choose_cube_face also

Same change as for softpipe

---

 src/mesa/swrast/s_texfilter.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/mesa/swrast/s_texfilter.c b/src/mesa/swrast/s_texfilter.c
index 6b1f934..216c107 100644
--- a/src/mesa/swrast/s_texfilter.c
+++ b/src/mesa/swrast/s_texfilter.c
@@ -1905,8 +1905,12 @@ choose_cube_face(const struct gl_texture_object *texObj,
       }
    }
 
-   newCoord[0] = ( sc / ma + 1.0F ) * 0.5F;
-   newCoord[1] = ( tc / ma + 1.0F ) * 0.5F;
+   { 
+      const float ima = 1.0F / ma;
+      newCoord[0] = ( sc * ima + 1.0F ) * 0.5F;
+      newCoord[1] = ( tc * ima + 1.0F ) * 0.5F;
+   }
+
    return (const struct gl_texture_image **) texObj->Image[face];
 }