fallback present mode

diff --git a/src/vkh_presenter.c b/src/vkh_presenter.c
index 063e00cd8f5671a21f9a2a94968d85bfa01a109a..7f5fa2e65b042acdb7c191f15cd69c167010983b 100644 (file)
--- a/src/vkh_presenter.c
+++ b/src/vkh_presenter.c
@@ -184,7 +184,9 @@ void _init_phy_surface(VkhPresenter r, VkFormat preferedFormat, VkPresentModeKHR
                        break;
                }
        }
-       assert (r->presentMode >= 0);
+       if (r->presentMode < 0)
+               r->presentMode = presentModes[0];//take first as fallback
+
        free(formats);
        free(presentModes);
 }