tdm_error
tdm_hwc_window_get_constraints(tdm_hwc_window *hwc_window, int *constraints);
+// TODO : this will be removed...
+#define TDM_PREPARATION_BUFFER_QUEUE 1000
+#define TDM_PREPARATION_NONE 1001
+
+tdm_error
+tdm_hwc_window_get_preparation_types(tdm_hwc_window *hwc_window, int *preparation_types);
+// TODO
+
/**
* @brief Destroy a pp object
* @param[in] pp A pp object