gl renderer: Remove superfluous modelview matrix changes

diff --git a/gsk/gl/gskglrenderops.c b/gsk/gl/gskglrenderops.c
index 517ce851c46f6306f2919223457eb80789659102..998b12a568274a56a36ee375cb2fa91d1a622899 100644 (file)
--- a/gsk/gl/gskglrenderops.c
+++ b/gsk/gl/gskglrenderops.c
@@ -97,6 +97,10 @@ ops_set_modelview (RenderOpBuilder         *builder,
   graphene_matrix_t prev_mv;
   RenderOp *last_op;
 
+  if (memcmp (&builder->program_state[builder->current_program->index].modelview, modelview,
+              sizeof (graphene_matrix_t)) == 0)
+    return *modelview;
+
   last_op = &g_array_index (builder->render_ops, RenderOp, builder->render_ops->len - 1);
   if (last_op->op == OP_CHANGE_MODELVIEW)
     {