ecore_drm2: distinguish real flip failure from flip deferral

If we try to flip too soon we get EBUSY and should queue up the buffer
for later presentation.  Only the other errors need to be dealt with
elsewhere.

diff --git a/src/lib/ecore_drm2/ecore_drm2_fb.c b/src/lib/ecore_drm2/ecore_drm2_fb.c
index 1c1c947..b56486e 100644 (file)
--- a/src/lib/ecore_drm2/ecore_drm2_fb.c
+++ b/src/lib/ecore_drm2/ecore_drm2_fb.c
@@ -271,14 +271,18 @@ ecore_drm2_fb_flip(Ecore_Drm2_Fb *fb, Ecore_Drm2_Output *output)
    ret =
      drmModePageFlip(fb->fd, output->crtc_id, fb->id,
                      DRM_MODE_PAGE_FLIP_EVENT, output->user_data);
-   if (ret < 0)
+   if ((ret < 0) && (errno != EBUSY))
      {
         DBG("Pageflip Failed for Crtc %u on Connector %u: %m",
             output->crtc_id, output->conn_id);
-        output->next = fb;
-        fb->busy = EINA_TRUE;
         return ret;
      }
+   else if (ret < 0)
+     {
+        output->next = fb;
+        output->next->busy = EINA_TRUE;
+        return 0;
+     }
 
    if (output->current) output->current->busy = EINA_FALSE;
    output->current = fb;