gl_generic: Add null checks in some cache functions

When wayland session recovery happens, we can end up down this path
with no gl context when elm reprocesses its config file.

That callback fires long before we've re-set up our wayland connection
so we can't possibly have a valid gl context yet.

Prevent that from crashing.

diff --git a/src/modules/evas/engines/gl_generic/evas_engine.c b/src/modules/evas/engines/gl_generic/evas_engine.c
index d0c179e..4fdcced 100644 (file)
--- a/src/modules/evas/engines/gl_generic/evas_engine.c
+++ b/src/modules/evas/engines/gl_generic/evas_engine.c
@@ -1399,6 +1399,7 @@ eng_image_cache_flush(void *data)
 
    re->window_use(re->software.ob);
    gl_context = re->window_gl_context_get(re->software.ob);
+   if (!gl_context) return;
 
    tmp_size = evas_common_image_get_cache();
    evas_common_image_set_cache(0);
@@ -1418,7 +1419,7 @@ eng_image_cache_set(void *data, int bytes)
 
    evas_common_image_set_cache(bytes);
    evas_common_rgba_image_scalecache_size_set(bytes);
-   evas_gl_common_image_cache_flush(gl_context);
+   if (gl_context) evas_gl_common_image_cache_flush(gl_context);
 }
 
 static int