* @return #TDM_ERROR_NONE if success. Otherwise, error value.
* @since 2.0.0
*/
- tdm_error (*output_hwc_set_client_target_buffer)(tdm_output *output, tbm_surface_h target_buffer,
- tdm_hwc_region damage, tdm_hwc_window **composited_wnds,
- uint32_t num_wnds);
+ tdm_error (*output_hwc_set_client_target_buffer)(tdm_output *output, tbm_surface_h target_buffer, tdm_hwc_region damage);
+
+ /**
+ * @brief Unset the client(relative to the TDM) target buffer
+ * @details TODO
+ * @param[in] output A output object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @since 2.0.0
+ */
+ tdm_error (*output_hwc_unset_client_target_buffer)(tdm_output *output);
+
+ /**
+ * @brief Get the layer associated with the client target buffer
+ * @details TODO:
+ * @param[in] output A output object
+ * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @return A layer object.
+ * @since 2.0.0
+ */
+ tdm_layer *(*output_hwc_get_client_target_buffer_layer)(tdm_output *output, tdm_error *error);
+
+ /**
+ * @brief Get the buffer which is set to the client target buffer
+ * @details TODO:
+ * @param[in] output A output object
+ * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @return A layer object.
+ * @since 2.0.0
+ */
+ tbm_surface_h (*output_hwc_get_client_target_buffer)(tdm_output *output, tdm_error *error);
/**
* @brief Validate the output
* @return #TDM_ERROR_NONE if success. Otherwise, error value.
* @since 2.0.0
*/
- tdm_error (*output_hwc_validate)(tdm_output *output, uint32_t *num_types);
+ tdm_error (*output_hwc_validate)(tdm_output *output, tdm_hwc_window **composited_wnds, uint32_t num_wnds,
+ uint32_t *num_types);
/**
* @brief Get changed composition types
tdm_error *error);
/**
- * @brief Sets the desired Z order (height) of the given window. A window with
- * a greater Z value occludes a window with a lesser Z value.
- * @param[in] hwc_window A window object
- * @param[in] z the new Z order
- * @return #TDM_ERROR_NONE if success. Otherwise, error value.
- */
- tdm_error (*hwc_window_set_zpos)(tdm_hwc_window *hwc_window, uint32_t zpos);
-
- /**
* @brief Sets the desired composition type of the given window.
* @details During output_hwc_validate(), the device may request changes to
* the composition types of any of the layers as described in the definition
tdm_hwc_window_info *info);
/**
+ * @brief Get the geometry information to a layer object
+ * @param[in] layer A layer object
+ * @param[out] info The geometry information
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ */
+ tdm_error (*hwc_window_get_info)(tdm_hwc_window *hwc_window,
+ tdm_hwc_window_info *info);
+
+ /**
* @brief Set a TDM buffer to a window object
* @details A TDM buffer will be applied when the output object
* of a layer object is committed.
tbm_surface_h buffer);
/**
+ * @brief Unset a TDM buffer to a window object
+ * @details A TDM buffer will be applied when the output object
+ * of a layer object is committed.
+ * @param[in] hwc_window A window object
+ * @return #TDM_ERROR_NONE if success. Otherwise, error value.
+ *
+ * Implementation should return #TDM_ERROR_BUSY if #hwc_window can't
+ * be updated right now, this won't be interpreted like some critical
+ * error.
+ */
+ tdm_error (*hwc_window_unset_buffer)(tdm_hwc_window *hwc_window);
+
+ /**
+ * @brief Get a buffer which is set to a window object
+ * @details A TDM buffer will be applied when the output object
+ * of a layer object is committed.
+ * @param[in] hwc_window A window object
+ * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @return A buffer which is @b assigend to a window object
+ *
+ * Implementation should return #TDM_ERROR_BUSY if #hwc_window can't
+ * be updated right now, this won't be interpreted like some critical
+ * error.
+ */
+ tbm_surface_h (*hwc_window_get_buffer)(tdm_hwc_window *hwc_window,
+ tdm_error *error);
+
+ /**
+ * @brief Get a layer associated with a window object
+ * @param[in] hwc_window A window object
+ * @param[out] error #TDM_ERROR_NONE if success. Otherwise, error value.
+ * @return A layer which is @b assigend to a window object
+ * @remark
+ * A backend module @b SHOULD implement this function. The backend should
+ * return the tdm_layer assoicated with a hwc_window which must be assigend
+ * hw overlay.\n
+ */
+ tdm_layer *(*hwc_window_get_layer)(tdm_hwc_window *hwc_window,
+ tdm_error *error);
+
+ /**
* @brief Set a flags to a window object
* @param[in] hwc_window A window object
* @param[in] flags A hwc_window flags