st/mesa: Reset the constant buffers before destroying the pipe context.

Signed-off-by: Tilman Sauerbeck <tilman@code-monkey.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/mesa/state_tracker/st_context.c b/src/mesa/state_tracker/st_context.c
index b5ea6d0f80..d0dcdd4e29 100644
--- a/src/mesa/state_tracker/st_context.c
+++ b/src/mesa/state_tracker/st_context.c
@@ -238,6 +238,11 @@ void st_destroy_context( struct st_context *st )
 
    pipe->set_index_buffer(pipe, NULL);
 
+   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
+      pipe->set_constant_buffer(pipe, PIPE_SHADER_VERTEX, 0, NULL);
+      pipe_resource_reference(&st->state.constants[PIPE_SHADER_VERTEX], NULL);
+   }
+
    _mesa_delete_program_cache(st->ctx, st->pixel_xfer.cache);
 
    _vbo_DestroyContext(st->ctx);