Mesa (master): anv/blorp: Handle zero width/height blits in blorp_copy()

[Anuj Phogat]

Module: Mesa
Branch: master
Commit: f75a93f6102763c04858582f2d890f6d2f27ff0e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f75a93f6102763c04858582f2d890f6d2f27ff0e

Author: Anuj Phogat <anuj.phogat at gmail.com>
Date:   Mon Sep 26 10:17:49 2016 -0700

anv/blorp: Handle zero width/height blits in blorp_copy()

V2: Move the check from copy_buffer_to_image() to blorp_copy(). (Nanley)

Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
Reviewed-by: Nanley Chery <nanley.g.chery at intel.com>

---

 src/intel/blorp/blorp_blit.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/intel/blorp/blorp_blit.c b/src/intel/blorp/blorp_blit.c
index af46389..0c3ee72 100644
--- a/src/intel/blorp/blorp_blit.c
+++ b/src/intel/blorp/blorp_blit.c
@@ -1838,8 +1838,11 @@ blorp_copy(struct blorp_batch *batch,
            uint32_t src_width, uint32_t src_height)
 {
    struct blorp_params params;
-   blorp_params_init(&params);
 
+   if (src_width == 0 || src_height == 0)
+      return;
+
+   blorp_params_init(&params);
    brw_blorp_surface_info_init(batch->blorp, &params.src, src_surf, src_level,
                                src_layer, ISL_FORMAT_UNSUPPORTED, false);
    brw_blorp_surface_info_init(batch->blorp, &params.dst, dst_surf, dst_level,