[gtk/wip/chergert/glproto] bring fix over for y-flip

[Christian Hergert <chergert src gnome org>]

commit 1ccd9c293c6dccf209d498fca73556c944ab3772
Author: Christian Hergert <chergert redhat com>
Date:   Tue Feb 16 15:47:31 2021 -0800

    bring fix over for y-flip

 gsk/next/gskglrenderjob.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gsk/next/gskglrenderjob.c b/gsk/next/gskglrenderjob.c
index 1bd7c597c4..c03cb71921 100644
--- a/gsk/next/gskglrenderjob.c
+++ b/gsk/next/gskglrenderjob.c
@@ -2501,7 +2501,7 @@ gsk_gl_render_job_visit_cross_fade_node (GskGLRenderJob      *job,
   gsk_gl_program_set_uniform1f (job->driver->cross_fade,
                                 UNIFORM_CROSS_FADE_PROGRESS, 0,
                                 progress);
-  gsk_gl_render_job_draw_offscreen_rect (job, &node->bounds);
+  gsk_gl_render_job_load_vertices_from_offscreen (job, &node->bounds, &offscreen_end);
   gsk_gl_render_job_end_draw (job);
 }