commit e31481f5d37588aaf81e04e9b5ccc37617f3bc34
author Haihua Hu <jared.hu@nxp.com> Fri Nov 10 19:52:47 2017 +0800
committer Lyon Wang <lyon.wang@nxp.com> Wed Dec 19 16:09:51 2018 +0800
tree 55b71686a70c625f0e7c5bdf0e80c3cbd6dab2d1
parent 19550010cce9f877164dcacc30fddf0b7618cc49

kmssink: fix performance issue by bypass frame sync

drm setplane will block on vblank before return.
it’s a sync call. So no need do frame sync in kmssink.

sys/kms/gstkmssink.c

diff --git a/sys/kms/gstkmssink.c b/sys/kms/gstkmssink.c
index eb0dd0f..c1814c7 100644
--- a/sys/kms/gstkmssink.c
+++ b/sys/kms/gstkmssink.c
@@ -1709,7 +1709,8 @@
       goto retry_set_plane;
     }
     goto set_plane_failed;
-  }
+  } else
+    goto done;
 
 sync_frame:
   /* Wait for the previous frame to complete redraw */
@@ -1718,6 +1719,7 @@
     goto bail;
   }
 
+done:
   if (buffer != self->last_buffer)
     gst_buffer_replace (&self->last_buffer, buffer);
   g_clear_pointer (&self->tmp_kmsmem, gst_memory_unref);