int *max_w, int *max_h, int *preferred_align);
/**
+ * @brief Get the pp vertical preferred align of a display object.
+ * @details -1 means that a TDM backend module doesn't define the value.
+ * @param[in] dpy A display object
+ * @param[out] preferred_align_vertical The preferred align height which TDM can handle
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_display_get_pp_preferred_align_vertical(tdm_display *dpy, int *preferred_align_vertical);
+
+
+/**
* @brief Get the capture capabilities of a display object.
* @param[in] dpy A display object
* @param[out] capabilities The capture capabilities
tdm_hwc_set_client_target_buffer(tdm_hwc *hwc, tbm_surface_h target_buffer, tdm_region damage);
/**
+ * @brief Set the acquire fence fd of client(relative to the TDM) target
+ * @param[in] hwc A output hwc
+ * @param[in] acquire_fence The acquire fence fd of target
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_hwc_set_client_target_acquire_fence(tdm_hwc *hwc, int acquire_fence);
+
+/**
* @brief Validate the output
* @details Instructs the backend to inspect all of the hw layer state and
* determine if there are any composition type changes necessary before
tdm_hwc_commit(tdm_hwc *hwc, int sync, tdm_hwc_commit_handler func, void *user_data);
/**
+ * @brief Get commit fence
+ * @details After all change of a window object are applied to last tdm_hwc_commit,
+ * the fence is signaled.
+ * @param[in] hwc A hwc object
+ * @param[out] commit_fence the commit fence fd of tdm_hwc_commit
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_hwc_get_commit_fence(tdm_hwc *hwc, int *commit_fence);
+
+/**
+ * @brief Get release fences
+ * @details Retrieves the windows which the backend requires setting the release fences
+ * the release fence is signaled when the backend is no longer using previous buffer.
+ * @param[in] hwc A hwc object
+ * @param[out] num_elements the number of hwc_windows
+ * @param[out] hwc_windows An array of windows
+ * @param[out] release_fences An array of release fences, each corresponding
+ * to an element of windows
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_hwc_get_release_fences(tdm_hwc *hwc, uint32_t *num_elements,
+ tdm_hwc_window **hwc_windows, int *fences);
+
+/**
* @brief Set the property which has a given id on the hwc object.
* @param[in] hwc A hwc object
* @param[in] id The property id
tdm_hwc_window_set_cursor_image(tdm_hwc_window *hwc_window, int width, int height, int stride, void *ptr);
/**
+ * @brief Set the acquire fence of hwc_window
+ * @param[in] hwc_window A hwc window object
+ * @param[in] acquire_fence the acquire fence fd of a hwc window object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+tdm_error
+tdm_hwc_window_set_acquire_fence(tdm_hwc_window *hwc_window, int acquire_fence);
+
+/**
* @brief Destroy a pp object
* @param[in] pp A pp object
* @see tdm_display_create_pp