[gtk+] gdk: Fix a variable

[Benjamin Otte <otte src gnome org>]

commit c162b87ebd50e82907006c13ae64d7c7828d0fa4
Author: Benjamin Otte <otte redhat com>
Date:   Thu Nov 17 22:03:04 2016 +0100

    gdk: Fix a variable
    
    The passed in surface is the current_paint surface, so I guess this
    usage hasn't been noticed.

 gdk/gdkgl.c                |    6 ++----
 gdk/x11/gdkglcontext-x11.c |    2 +-
 2 files changed, 3 insertions(+), 5 deletions(-)
---
diff --git a/gdk/gdkgl.c b/gdk/gdkgl.c
index 2005cec..b62fc2d 100644
--- a/gdk/gdkgl.c
+++ b/gdk/gdkgl.c
@@ -741,10 +741,8 @@ gdk_gl_texture_from_surface (cairo_surface_t *surface,
   gdk_window_get_unscaled_size (window, NULL, &unscaled_window_height);
 
   sx = sy = 1;
-  cairo_surface_get_device_scale (window->current_paint.surface, &sx, &sy);
-
-  cairo_surface_get_device_offset (surface,
-                                   &device_x_offset, &device_y_offset);
+  cairo_surface_get_device_scale (surface, &sx, &sy);
+  cairo_surface_get_device_offset (surface, &device_x_offset, &device_y_offset);
 
   glGenTextures (1, &texture_id);
   if (use_texture_rectangle)
diff --git a/gdk/x11/gdkglcontext-x11.c b/gdk/x11/gdkglcontext-x11.c
index 5f16baf..77103b5 100644
--- a/gdk/x11/gdkglcontext-x11.c
+++ b/gdk/x11/gdkglcontext-x11.c
@@ -463,7 +463,7 @@ gdk_x11_gl_context_texture_from_surface (GdkGLContext *paint_context,
   gdk_window_get_unscaled_size (window, NULL, &unscaled_window_height);
 
   sx = sy = 1;
-  cairo_surface_get_device_scale (window->current_paint.surface, &sx, &sy);
+  cairo_surface_get_device_scale (surface, &sx, &sy);
   cairo_surface_get_device_offset (surface, &device_x_offset, &device_y_offset);
 
   /* Ensure all the X stuff are synced before we read it back via texture-from-pixmap */