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st/mesa: recreate sampler view on context change v3

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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
v3: add XXX comment

Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: "10.0 10.1" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Christian König 2014-03-22 21:30:07 +01:00
parent eabfadf4af
commit 92e543c45d
1 changed files with 10 additions and 0 deletions
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10
src/mesa/state_tracker/st_atom_texture.c
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@ -198,6 +198,16 @@ 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 */
/* XXX: This isn't optimal, we should try to use more than one view.
Otherwise we create/destroy the view all the time
*/
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;