commit 410d8f7cdb40889e66f5c6794878ad9a5f572ee7
Author: Xiang, Haihao <haihao.xiang@intel.com>
Date:   Wed Aug 29 10:13:10 2007 -0400

    i965: samplers group in fours in WM_STATE. fix bug#9415

diff --git a/src/mesa/drivers/dri/i965/brw_wm_state.c b/src/mesa/drivers/dri/i965/brw_wm_state.c
index ff5cb31..5b4f2ab 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_state.c
@@ -117,7 +117,7 @@ static void upload_wm_unit(struct brw_context *brw )
    wm.thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754;
 
    /* CACHE_NEW_SAMPLER */
-   wm.wm4.sampler_count = brw->wm.sampler_count;
+   wm.wm4.sampler_count = (brw->wm.sampler_count + 1) / 4;
    wm.wm4.sampler_state_pointer = brw->wm.sampler_gs_offset >> 5;
 
    /* BRW_NEW_FRAGMENT_PROGRAM */