From 8136b7380278aeb51c9eb103ff5f0bcc31d1cf85 Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Mon, 3 Apr 2023 19:26:36 +0200
Subject: Print some bounds of opaque regions

---
 gdk/gdksurface.c       | 9 +++++++++
 gsk/gl/gskglrenderer.c | 9 +++++++++
 2 files changed, 18 insertions(+)

diff --git a/gdk/gdksurface.c b/gdk/gdksurface.c
index 7120da78db..469f37a9ed 100644
--- a/gdk/gdksurface.c
+++ b/gdk/gdksurface.c
@@ -2707,6 +2707,15 @@ gdk_surface_set_opaque_region (GdkSurface      *surface,
   if (region != NULL)
     surface->opaque_region = cairo_region_reference (region);
 
+  if (!region)
+    g_print (">>> no opaque region\n");
+  else
+    {
+      GdkRectangle opaque;
+      cairo_region_get_extents (region, &opaque);
+      g_print (">>> opaque region: %d %d %d %d (%d)\n", opaque.x, opaque.y, opaque.width, opaque.height, cairo_region_num_rectangles (region));
+    }
+
   class = GDK_SURFACE_GET_CLASS (surface);
   if (class->set_opaque_region)
     class->set_opaque_region (surface, region);
diff --git a/gsk/gl/gskglrenderer.c b/gsk/gl/gskglrenderer.c
index 8451ad9563..bb43605e32 100644
--- a/gsk/gl/gskglrenderer.c
+++ b/gsk/gl/gskglrenderer.c
@@ -319,6 +319,15 @@ gsk_gl_renderer_render (GskRenderer          *renderer,
 
   gsk_gl_driver_after_frame (self->driver);
 
+  {
+    graphene_rect_t opaque;
+
+    if (!gsk_render_node_get_opaque (root, &opaque))
+      g_print ("no opaque region\n");
+    else
+      g_print ("opaque region: %g %g %g %g\n", opaque.origin.x, opaque.origin.y, opaque.size.width, opaque.size.height);
+  }
+
   cairo_region_destroy (render_region);
 }
 
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