ecore-evas-drm: Check if vblank is supported

Small patch to check if the video driver supports drmWaitVBlank. If
not, we can fall back to timer based animators and avoid freezing (due
to usage of vsync'd animators).

@fix

diff --git a/src/modules/ecore_evas/engines/drm/ecore_evas_drm.c b/src/modules/ecore_evas/engines/drm/ecore_evas_drm.c
index b5921b0..6988ae8 100644 (file)
--- a/src/modules/ecore_evas/engines/drm/ecore_evas_drm.c
+++ b/src/modules/ecore_evas/engines/drm/ecore_evas_drm.c
@@ -1033,6 +1033,17 @@ _ecore_evas_new_internal(const char *device, int x, int y, int w, int h, Eina_Bo
    ee->engine.func = (Ecore_Evas_Engine_Func *)&_ecore_evas_drm_engine_func;
    ee->engine.data = edata;
 
+   if (!ecore_drm2_vblank_supported(edata->dev))
+     {
+        ee->engine.func->fn_animator_register = NULL;
+        ee->engine.func->fn_animator_unregister = NULL;
+     }
+   else
+     {
+        ee->engine.func->fn_animator_register = _drm_animator_register;
+        ee->engine.func->fn_animator_unregister = _drm_animator_unregister;
+     }
+
    /* FIXME */
    /* if (edata->device) ee->name = strdup(edata->device); */