Mesa (staging/19.3): zink: disable fragment-shader texture-lod

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Module: Mesa
Branch: staging/19.3
Commit: f7d76ad80e7ff67e17ba4c7e510787ce70673c1f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=f7d76ad80e7ff67e17ba4c7e510787ce70673c1f

Author: Erik Faye-Lund <erik.faye-lund at collabora.com>
Date:   Thu Oct 31 20:05:58 2019 +0100

zink: disable fragment-shader texture-lod

We don't support nir_texop_txd, which is required by this cap. So let's
disable it for now.

Signed-off-by: Erik Faye-Lund <erik.faye-lund at collabora.com>
Fixes: 8d46e35d16e ("zink: introduce opengl over vulkan")
(cherry picked from commit b385ad0c75cf7288b278402d23e35267492e8dda)

---

 src/gallium/drivers/zink/zink_screen.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/gallium/drivers/zink/zink_screen.c b/src/gallium/drivers/zink/zink_screen.c
index 2cde08abd06..7addb9d9660 100644
--- a/src/gallium/drivers/zink/zink_screen.c
+++ b/src/gallium/drivers/zink/zink_screen.c
@@ -125,6 +125,8 @@ zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
       return 1;
 
    case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
+      return 0; /* TODO: re-enable after implementing nir_texop_txd */
+
    case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
    case PIPE_CAP_VERTEX_SHADER_SATURATE:
       return 1;