[Mesa-dev] [PATCH 1/3] st/mesa: recreate sampler view on context change v2

[Christian König]

From: Christian König <christian.koenig at amd.com>

With shared glx contexts it is possible that a texture is create and used
in one context and then used in another one resulting in incorrect
sampler view usage.

v2: avoid template copy

Signed-off-by: Christian König <christian.koenig at amd.com>
Cc: "10.0 10.1" <mesa-stable at lists.freedesktop.org>
---
 src/mesa/state_tracker/st_atom_texture.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/mesa/state_tracker/st_atom_texture.c b/src/mesa/state_tracker/st_atom_texture.c
index 3557a3f..dc7f635 100644
--- a/src/mesa/state_tracker/st_atom_texture.c
+++ b/src/mesa/state_tracker/st_atom_texture.c
@@ -198,6 +198,13 @@ st_get_texture_sampler_view_from_stobj(struct st_texture_object *stObj,
    if (!stObj->sampler_view) {
       stObj->sampler_view =
          st_create_texture_sampler_view_from_stobj(pipe, stObj, samp, format);
+
+   } else if (stObj->sampler_view->context != pipe) {
+      /* Recreate view in correct context, use existing view as template */
+      struct pipe_sampler_view *sv =
+         pipe->create_sampler_view(pipe, stObj->pt, stObj->sampler_view);
+      pipe_sampler_view_reference(&stObj->sampler_view, NULL);
+      stObj->sampler_view = sv;
    }
 
    return stObj->sampler_view;
-- 
1.9.1