We can get into a situation where many BLT operations after a draw
cause a force flush of the current command stream. Calling
etna_state_update(..) without an active draw results in a segfault
due to inconsistent context state.
Track whether we're currently in draw_vbo to avoid updating derived
states during force flush outside of draw operations.
Passes dEQP-GLES3.functional.samplers.multi_tex_3d.* on GC7000.
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36506>
Christian Gmeiner
ef55869dc8