[gtk+] Always make offscreen window rgba



commit 42c2d51ad958a02d7531929e2827296ec04568bd
Author: Alexander Larsson <alexl redhat com>
Date:   Mon Feb 13 15:04:32 2012 +0100

    Always make offscreen window rgba
    
    This fixes issues where the new default bg of transparent
    didn't work, making offscreen windows black.
    
    I don't think this is a practical performance problem.
    Offscreen windows are rarely used and generally used for
    graphics tricks like alpha anyway.

 gdk/gdkoffscreenwindow.c |    9 +--------
 1 files changed, 1 insertions(+), 8 deletions(-)
---
diff --git a/gdk/gdkoffscreenwindow.c b/gdk/gdkoffscreenwindow.c
index bc91ac0..df88931 100644
--- a/gdk/gdkoffscreenwindow.c
+++ b/gdk/gdkoffscreenwindow.c
@@ -145,19 +145,12 @@ _gdk_offscreen_window_create_surface (GdkWindow *offscreen,
 {
   cairo_surface_t *similar;
   cairo_surface_t *surface;
-  cairo_content_t  content = CAIRO_CONTENT_COLOR;
 
   g_return_val_if_fail (GDK_IS_OFFSCREEN_WINDOW (offscreen->impl), NULL);
 
   similar = _gdk_window_ref_cairo_surface (offscreen->parent);
 
-  if (gdk_window_get_visual (offscreen) ==
-      gdk_screen_get_rgba_visual (gdk_window_get_screen (offscreen)))
-    {
-      content = CAIRO_CONTENT_COLOR_ALPHA;
-    }
-
-  surface = cairo_surface_create_similar (similar, content, width, height);
+  surface = cairo_surface_create_similar (similar, CAIRO_CONTENT_COLOR_ALPHA, width, height);
 
   cairo_surface_destroy (similar);
 



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