Mesa (master): u_vbuf: Only create driver CSO if no incompatible elements

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Module: Mesa
Branch: master
Commit: 18a8c3f7f11307b348f72c64603b5761c0ce406f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=18a8c3f7f11307b348f72c64603b5761c0ce406f

Author: Paul Cercueil <paul at crapouillou.net>
Date:   Tue Nov 19 21:59:07 2019 +0100

u_vbuf: Only create driver CSO if no incompatible elements

Signed-off-by: Paul Cercueil <paul at crapouillou.net>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/2807>

---

 src/gallium/auxiliary/util/u_vbuf.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/gallium/auxiliary/util/u_vbuf.c b/src/gallium/auxiliary/util/u_vbuf.c
index 67c82a56ecd..8e67cd965f8 100644
--- a/src/gallium/auxiliary/util/u_vbuf.c
+++ b/src/gallium/auxiliary/util/u_vbuf.c
@@ -811,8 +811,12 @@ u_vbuf_create_vertex_elements(struct u_vbuf *mgr, unsigned count,
       }
    }
 
-   ve->driver_cso =
-      pipe->create_vertex_elements_state(pipe, count, driver_attribs);
+   /* Only create driver CSO if no incompatible elements */
+   if (!ve->incompatible_elem_mask) {
+      ve->driver_cso =
+         pipe->create_vertex_elements_state(pipe, count, driver_attribs);
+   }
+
    return ve;
 }