[gtk] gl renderer: Avoid copying a matrix

[Timm Bäder <baedert src gnome org>]

commit c0d4a6fc8151852c298751d58f0702487c289292
Author: Timm Bäder <mail baedert org>
Date:   Thu Dec 19 13:03:22 2019 +0100

    gl renderer: Avoid copying a matrix

 gsk/gl/gskglrenderops.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)
---
diff --git a/gsk/gl/gskglrenderops.c b/gsk/gl/gskglrenderops.c
index de326db30c..a4b7786d30 100644
--- a/gsk/gl/gskglrenderops.c
+++ b/gsk/gl/gskglrenderops.c
@@ -369,7 +369,6 @@ ops_set_modelview_internal (RenderOpBuilder *builder,
                             GskTransform    *transform)
 {
   ProgramState *current_program_state = get_current_program_state (builder);
-  graphene_matrix_t matrix;
   OpMatrix *op;
 
 #if 0
@@ -379,12 +378,10 @@ ops_set_modelview_internal (RenderOpBuilder *builder,
     return;
 #endif
 
-  gsk_transform_to_matrix (transform, &matrix);
-
   if (!(op = op_buffer_peek_tail_checked (&builder->render_ops, OP_CHANGE_MODELVIEW)))
     op = op_buffer_add (&builder->render_ops, OP_CHANGE_MODELVIEW);
 
-  op->matrix = matrix;
+  gsk_transform_to_matrix (transform, &op->matrix);
 
   if (builder->current_program != NULL)
     {