rusticl/mesa: fix `set_constant_buffer` when passing an empty buffer

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Emma Anholt <emma@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25303>

diff --git a/src/gallium/frontends/rusticl/mesa/pipe/context.rs b/src/gallium/frontends/rusticl/mesa/pipe/context.rs
index 13d6589..70814d7 100644 (file)
--- a/src/gallium/frontends/rusticl/mesa/pipe/context.rs
+++ b/src/gallium/frontends/rusticl/mesa/pipe/context.rs
@@ -389,7 +389,7 @@ impl PipeContext {
                 pipe_shader_type::PIPE_SHADER_COMPUTE,
                 idx,
                 false,
-                &cb,
+                if data.is_empty() { ptr::null() } else { &cb },
             )
         }
     }