From b98e78d46476d8c5468c3034ee13e2dae8c83047 Mon Sep 17 00:00:00 2001
From: Derek Foreman <derekf@osg.samsung.com>
Date: Fri, 4 Mar 2016 15:46:14 -0600
Subject: [PATCH] Track whether a render is in progress or not

We'll need this to protect certain wayland operations.
---
 src/bin/e_comp.h        | 2 ++
 src/bin/e_comp_canvas.c | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/src/bin/e_comp.h b/src/bin/e_comp.h
index d34303663..1f4f2d59c 100644
--- a/src/bin/e_comp.h
+++ b/src/bin/e_comp.h
@@ -155,6 +155,8 @@ struct _E_Comp
    Eina_Bool       nocomp_want : 1;
    Eina_Bool       saver : 1;
    Eina_Bool       shape_queue_blocked : 1;
+
+   Eina_Bool       rendering : 1; // we've received a pre-render callback but no post-render yet.
 };
 
 
diff --git a/src/bin/e_comp_canvas.c b/src/bin/e_comp_canvas.c
index c5cb76d84..2506cd550 100644
--- a/src/bin/e_comp_canvas.c
+++ b/src/bin/e_comp_canvas.c
@@ -50,6 +50,9 @@ _e_comp_canvas_render_post(void *data EINA_UNUSED, Evas *e EINA_UNUSED, void *ev
         //EINA_LIST_FOREACH(ev->updated_area, l, r)
           //INF("POST RENDER: %d,%d %dx%d", r->x, r->y, r->w, r->h);
      //}
+
+   e_comp->rendering = EINA_FALSE;
+
    EINA_LIST_FREE(e_comp->post_updates, ec)
      {
         //INF("POST %p", ec);
@@ -258,6 +261,8 @@ _e_comp_canvas_prerender(void *data EINA_UNUSED, Evas *e EINA_UNUSED, void *even
    E_Comp_Cb cb;
    Eina_List *l;
 
+   e_comp->rendering = EINA_TRUE;
+
    EINA_LIST_FOREACH(e_comp->pre_render_cbs, l, cb)
      cb();
 }