Mesa (master): i965/gen9: Don' t use fast copy blit in case of non power of 2 cpp

[Anuj Phogat]

Module: Mesa
Branch: master
Commit: 3c8b97a45b824712452b1425ed5cac3b97286439
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3c8b97a45b824712452b1425ed5cac3b97286439

Author: Anuj Phogat <anuj.phogat at gmail.com>
Date:   Tue Jul 28 10:47:35 2015 -0700

i965/gen9: Don't use fast copy blit in case of non power of 2 cpp

Fast copy blit is currently enabled for use only with Yf/Ys tiling.

Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>

---

 src/mesa/drivers/dri/i965/intel_blit.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/intel_blit.c b/src/mesa/drivers/dri/i965/intel_blit.c
index bd204aa..474a476 100644
--- a/src/mesa/drivers/dri/i965/intel_blit.c
+++ b/src/mesa/drivers/dri/i965/intel_blit.c
@@ -427,8 +427,10 @@ can_fast_copy_blit(struct brw_context *brw,
    if ((dst_offset | src_offset) & 63)
       return false;
 
-   /* Color depth greater than 128 bits not supported. */
-   if (cpp > 16)
+   /* Color depths which are not power of 2 or greater than 128 bits are
+    * not supported.
+    */
+   if (!_mesa_is_pow_two(cpp) || cpp > 16)
       return false;
 
    /* For Fast Copy Blits the pitch cannot be a negative number. So, bit 15