compositor: Update buffer transform exclusively

The buffer transform must not be updated by both wl_surface protocol and
viewporter API at the same time. It has to be handled exclusively.

Change-Id: I89ef435298c9d5020a3df8786c6c2e2c9da283c3

diff --git a/src/bin/server/e_compositor.c b/src/bin/server/e_compositor.c
index d6d7c3286b66b87e78a9055978e7ba745ad98236..ed3259e0e016cc7ffc65476cdb1f26307dead50c 100644 (file)
--- a/src/bin/server/e_compositor.c
+++ b/src/bin/server/e_compositor.c
@@ -1138,6 +1138,13 @@ _e_surface_pending_buffer_transform_update(E_Surface *surface)
 {
    int32_t transform = surface->ds_surface->current.transform;
 
+   if (surface->viewporter.acquired)
+     {
+        ELOGF("SURFACE", "Cannot update buffer transform(%d), viewporter has been acquired.",
+              surface->ec, transform);
+        return;
+     }
+
    surface->base.pending.buffer_viewport.buffer.transform = transform;
    surface->base.pending.buffer_viewport.changed = 1;
 }