From: SooChan Lim <sc1.lim@samsung.com>
Date: Mon, 12 Feb 2018 01:40:26 +0000 (+0900)
Subject: hwc: add hwc_window_get_buffer at backend function
X-Git-Tag: submit/tizen/20180212.074346~11
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=de319d72948f8839bc78b7ca8cca87fc3d0abe17;p=platform%2Fcore%2Fuifw%2Flibtdm.git

hwc: add hwc_window_get_buffer at backend function

Change-Id: I4ca3a45175259f57a2ca073293e73d13744224c3
---

diff --git a/include/tdm_backend.h b/include/tdm_backend.h
index cbd8a82f..01c02335 100644
--- a/include/tdm_backend.h
+++ b/include/tdm_backend.h
@@ -946,6 +946,21 @@ typedef struct _tdm_func_window {
 	 */
 	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 Set a flags to a window object
 	 * @param[in] hwc_window A window object