Mesa (master): i965: Set the destination horiz stride even for da16, as SNB seems to need it.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: 3ce2eccbfb925a3af0b91a89a9f7a3603fa45d2d
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3ce2eccbfb925a3af0b91a89a9f7a3603fa45d2d

Author: Zhenyu Wang <zhenyuw at linux.intel.com>
Date:   Fri Aug 20 15:01:11 2010 -0700

i965: Set the destination horiz stride even for da16, as SNB seems to need it.

---

 src/mesa/drivers/dri/i965/brw_eu_emit.c |    4 ++++
 src/mesa/drivers/dri/i965/brw_structs.h |    4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c
index 0d5d17f..523f119 100644
--- a/src/mesa/drivers/dri/i965/brw_eu_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c
@@ -75,6 +75,8 @@ static void brw_set_dest( struct brw_instruction *insn,
       else {
 	 insn->bits1.da16.dest_subreg_nr = dest.subnr / 16;
 	 insn->bits1.da16.dest_writemask = dest.dw1.bits.writemask;
+	 /* even ignored in da16, still need to set as '01' */
+	 insn->bits1.da16.dest_horiz_stride = 1;
       }
    }
    else {
@@ -90,6 +92,8 @@ static void brw_set_dest( struct brw_instruction *insn,
       }
       else {
 	 insn->bits1.ia16.dest_indirect_offset = dest.dw1.bits.indirect_offset;
+	 /* even ignored in da16, still need to set as '01' */
+	 insn->bits1.ia16.dest_horiz_stride = 1;
       }
    }
 
diff --git a/src/mesa/drivers/dri/i965/brw_structs.h b/src/mesa/drivers/dri/i965/brw_structs.h
index 1d6018f..cdd2998 100644
--- a/src/mesa/drivers/dri/i965/brw_structs.h
+++ b/src/mesa/drivers/dri/i965/brw_structs.h
@@ -1360,7 +1360,7 @@ struct brw_instruction
 	 GLuint dest_writemask:4;
 	 GLuint dest_subreg_nr:1;
 	 GLuint dest_reg_nr:8;
-	 GLuint pad1:2;
+	 GLuint dest_horiz_stride:2;
 	 GLuint dest_address_mode:1;
       } da16;
 
@@ -1374,7 +1374,7 @@ struct brw_instruction
 	 GLuint dest_writemask:4;
 	 GLint dest_indirect_offset:6;
 	 GLuint dest_subreg_nr:3;
-	 GLuint pad1:2;
+	 GLuint dest_horiz_stride:2;
 	 GLuint dest_address_mode:1;
       } ia16;
    } bits1;