[Mesa-dev] [PATCH 6/6] st/mesa: don't modify immutable textures

[nobled]

---
 src/mesa/state_tracker/st_manager.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/src/mesa/state_tracker/st_manager.c
b/src/mesa/state_tracker/st_manager.c
index d54b7ed..5a1fb73 100644
--- a/src/mesa/state_tracker/st_manager.c
+++ b/src/mesa/state_tracker/st_manager.c
@@ -501,6 +501,14 @@ st_context_teximage(struct st_context_iface *stctxi,
    texObj = _mesa_select_tex_object(ctx, texUnit, target);
    _mesa_lock_texture(ctx, texObj);

+   if (texObj->Immutable) {
+      /* Ideally, we should not be able to get here. */
+      _mesa_problem(ctx, "Texture %u is immutable: its format and dimensions"
+                    " can't be modified.", texObj->Name);
+      _mesa_unlock_texture(ctx, texObj);
+      return FALSE;
+   }
+
    stObj = st_texture_object(texObj);
    /* switch to surface based */
    if (!stObj->surface_based) {
-- 
1.7.4.1