[cogl] debug: Adds COGL_DEBUG=winsys option

[Robert Bragg <rbragg src gnome org>]

commit 9a254d82927e9316183ae86c596a369554d1e6d6
Author: Robert Bragg <robert linux intel com>
Date:   Tue Feb 7 16:53:12 2012 +0000

    debug: Adds COGL_DEBUG=winsys option
    
    Although we internally had a COGL_DEBUG_WINSYS enum we weren't providing
    a way to enable that via the COGL_DEBUG environment variable. This adds
    a "winsys" option that can be used to enable printing of winsys debug
    notes.
    
    Reviewed-by: Neil Roberts <neil linux intel com>

 cogl/cogl-debug.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/cogl/cogl-debug.c b/cogl/cogl-debug.c
index 7443222..2724e63 100644
--- a/cogl/cogl-debug.c
+++ b/cogl/cogl-debug.c
@@ -55,7 +55,8 @@ static const GDebugKey cogl_log_debug_keys[] = {
   { "offscreen", COGL_DEBUG_OFFSCREEN },
   { "texture-pixmap", COGL_DEBUG_TEXTURE_PIXMAP },
   { "bitmap", COGL_DEBUG_BITMAP },
-  { "clipping", COGL_DEBUG_CLIPPING }
+  { "clipping", COGL_DEBUG_CLIPPING },
+  { "winsys", COGL_DEBUG_WINSYS }
 };
 static const int n_cogl_log_debug_keys =
   G_N_ELEMENTS (cogl_log_debug_keys);