From bdbb5f8170f48713b741ad68c26464231a01ca7a Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Thu, 25 Feb 2010 20:21:39 -0700
Subject: [PATCH] swrast: add 0.5 bias in tex_array_slice() per the spec

---
 src/mesa/swrast/s_texfilter.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/swrast/s_texfilter.c b/src/mesa/swrast/s_texfilter.c
index 478fb1557f6..997c2f4bb79 100644
--- a/src/mesa/swrast/s_texfilter.c
+++ b/src/mesa/swrast/s_texfilter.c
@@ -480,7 +480,7 @@ clamp_rect_coord_linear(GLenum wrapMode, GLfloat coord, GLint max,
 static INLINE GLint
 tex_array_slice(GLfloat coord, GLsizei size)
 {
-   GLint slice = IFLOOR(coord);
+   GLint slice = IFLOOR(coord + 0.5f);
    slice = CLAMP(slice, 0, size - 1);
    return slice;
 }
-- 
2.30.2