gsk: Only use fences when supportedmatthiasc/texture-sync

1 files changed, 4 insertions, 2 deletions

diff --git a/gsk/gl/gskgldriver.c b/gsk/gl/gskgldriver.c
index faea458469..84a8937412 100644
--- a/gsk/gl/gskgldriver.c
+++ b/gsk/gl/gskgldriver.c
@@ -1576,7 +1576,8 @@ create_texture_from_texture_destroy (gpointer data)
 
   gdk_gl_context_make_current (state->context);
   glDeleteTextures (1, &state->texture_id);
-  glDeleteSync (state->sync);
+  if (state->sync)
+    glDeleteSync (state->sync);
   g_clear_object (&state->context);
   g_free (state);
 }
@@ -1603,7 +1604,8 @@ gsk_gl_driver_create_gdk_texture (GskGLDriver *self,
   state = g_new0 (GskGLTextureState, 1);
   state->texture_id = texture_id;
   state->context = g_object_ref (self->command_queue->context);
-  state->sync = glFenceSync (GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
+  if (gdk_gl_context_has_fence_sync (self->command_queue->context))
+    state->sync = glFenceSync (GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
 
   g_hash_table_steal (self->textures, GUINT_TO_POINTER (texture_id));