TEST TEST TEST

Add some random updates to the GL Area, so that funky testing can be
done with the GLArea and Gears gtk-demo.

1 files changed, 15 insertions, 0 deletions

diff --git a/gtk/gtkglarea.c b/gtk/gtkglarea.c
index f547a4995f..1e2f6b5535 100644
--- a/gtk/gtkglarea.c
+++ b/gtk/gtkglarea.c
@@ -770,6 +770,20 @@ gtk_gl_area_snapshot (GtkWidget   *widget,
 
       texture = priv->texture;
       priv->texture = NULL;
+
+      if (priv->textures)
+        gdk_gl_texture_builder_set_update_texture (texture->builder, ((Texture *) priv->textures->data)->holder);
+      {
+        cairo_region_t *region = cairo_region_create ();
+        cairo_region_union_rectangle (region, &(cairo_rectangle_int_t) { 0, 0, 300, 300 });
+        cairo_region_union_rectangle (region, &(cairo_rectangle_int_t) { 0, 600, 300, 300 });
+        cairo_region_union_rectangle (region, &(cairo_rectangle_int_t) { 300, 300, 300, 300 });
+        cairo_region_union_rectangle (region, &(cairo_rectangle_int_t) { 600, 0, 300, 300 });
+        cairo_region_union_rectangle (region, &(cairo_rectangle_int_t) { 600, 600, 300, 300 });
+        gdk_gl_texture_builder_set_update_region (texture->builder, region);
+        cairo_region_destroy (region);
+      }
+
       priv->textures = g_list_prepend (priv->textures, texture);
 
       if (gdk_gl_context_has_sync (priv->context))
@@ -781,6 +795,7 @@ gtk_gl_area_snapshot (GtkWidget   *widget,
                                                       release_texture,
                                                       texture);
 
+      gdk_gl_texture_builder_set_update_texture (texture->builder, NULL);
       /* Our texture is rendered by OpenGL, so it is upside down,
        * compared to what GSK expects, so flip it back.
        */