evas/wayland_shm: Don't use a global var to store the sent buffer.

When an Ecore_Evas is hidden, it will destroy the buffer swapper. When
it's shown again, it will try to attach a new buffer, that can be same
buffer. If that global var is still pointing to the old buffer, it can
match to it again and avoid sending a new buffer. So, just put this sent
buffer var in the buffer swapper, and it will get set to NULL when the
swapper is destroyed and created again.

This should fix an intermitent problem of ecore_evas_show() not always
working after an ecore_evas_hide() on the wayland_shm engine.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/modules/evas/engines/wayland_shm/evas_swapper.c b/src/modules/evas/engines/wayland_shm/evas_swapper.c
index f9f5b3de21..1a879faece 100644
--- a/src/modules/evas/engines/wayland_shm/evas_swapper.c
+++ b/src/modules/evas/engines/wayland_shm/evas_swapper.c
@@ -29,6 +29,7 @@ struct _Wl_Buffer
 struct _Wl_Swapper
 {
    Wl_Buffer buff[3];
+   Wl_Buffer *buffer_sent;
    int in_use;
    int dx, dy, w, h, depth;
    int buff_cur, buff_num;
@@ -448,7 +449,6 @@ static void
 _evas_swapper_buffer_put(Wl_Swapper *ws, Wl_Buffer *wb, Eina_Rectangle *rects, unsigned int count)
 {
    Eina_Rectangle *rect;
-   static Wl_Buffer *sent = NULL;
 
    LOGFN(__FILE__, __LINE__, __FUNCTION__);
 
@@ -488,12 +488,12 @@ _evas_swapper_buffer_put(Wl_Swapper *ws, Wl_Buffer *wb, Eina_Rectangle *rects, u
      }
 
    /* surface attach */
-   if (sent != wb)
+   if (ws->buffer_sent != wb)
      {
         wl_surface_attach(ws->surface, wb->buffer, ws->dx, ws->dy);
         ws->dx = 0;
         ws->dy = 0;
-        sent = wb;
+        ws->buffer_sent = wb;
      }
 
    wl_surface_damage(ws->surface, rect->x, rect->y, rect->w, rect->h);