From: Joonbum Ko <joonbum.ko@samsung.com>
Date: Wed, 17 Nov 2021 04:31:12 +0000 (+0900)
Subject: Flush vblank waiting buffers when tdm error occured.
X-Git-Tag: submit/tizen/20211124.073616~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7cd541e123fec1836badb6acb13e3a66b3b37b45;p=platform%2Fcore%2Fuifw%2Flibtpl-egl.git

Flush vblank waiting buffers when tdm error occured.

 - If tdm error such as TIEMOUT occured,
  flush all vblank waiting buffers of its wl_egl_surface.
   Otherwise, only one wl_egl_buffer will be commited
  per one vblank event.

Change-Id: I8df5cb847cf77875315df6ae3ca4086992f1700e
Signed-off-by: Joonbum Ko <joonbum.ko@samsung.com>
---

diff --git a/src/tpl_wl_egl_thread.c b/src/tpl_wl_egl_thread.c
index 11c7f16..6fcce36 100755
--- a/src/tpl_wl_egl_thread.c
+++ b/src/tpl_wl_egl_thread.c
@@ -2866,12 +2866,19 @@ __cb_tdm_client_vblank(tdm_client_vblank *vblank, tdm_error error,
 
 	tpl_gmutex_lock(&wl_egl_surface->surf_mutex);
 	if (wl_egl_surface->vblank && wl_egl_surface->vblank->waiting_buffers) {
-		wl_egl_buffer = (tpl_wl_egl_buffer_t *)__tpl_list_pop_front(
-							wl_egl_surface->vblank->waiting_buffers,
-							NULL);
-
-		if (wl_egl_buffer)
-			_thread_wl_surface_commit(wl_egl_surface, wl_egl_buffer);
+		while (!__tpl_list_is_empty(wl_egl_surface->vblank->waiting_buffers)) {
+			wl_egl_buffer = (tpl_wl_egl_buffer_t *)__tpl_list_pop_front(
+								wl_egl_surface->vblank->waiting_buffers,
+								NULL);
+			if (wl_egl_buffer)
+				_thread_wl_surface_commit(wl_egl_surface, wl_egl_buffer);
+
+			/* If tdm error such as TIEMOUT occured,
+			 * flush all vblank waiting buffers of its wl_egl_surface.
+			 * Otherwise, only one wl_egl_buffer will be commited per one vblank event.
+			 */
+			if (error == TDM_ERROR_NONE) break;
+		}
 	}
 	tpl_gmutex_unlock(&wl_egl_surface->surf_mutex);
 }