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gdk: enable rgba visuals by default

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Unless GDK_RGBA=0 is set.

https://bugzilla.gnome.org/show_bug.cgi?id=630217
This commit is contained in:
William Jon McCann 2014-01-22 18:48:45 -05:00
parent b617b003ef
commit a2ccb6601e
2 changed files with 17 additions and 0 deletions
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9
docs/reference/gtk/running.sgml
View File

@ -478,6 +478,15 @@ nevertheless.
</para>
</formalpara>
<formalpara>
<title><envar>GDK_RGBA</envar></title>
<para>
Since 3.12, this environment variable can be used to prevent
using RGBA visuals on the X11 backend by setting GDK_RGBA=0.
</para>
</formalpara>
<formalpara>
<title><envar>XDG_DATA_HOME</envar>, <envar>XDG_DATA_DIRS</envar></title>

8
gdk/x11/gdkvisual-x11.c
View File

@ -285,6 +285,14 @@ _gdk_x11_screen_init_visuals (GdkScreen *screen)
}
}
/* prefer the RGBA visual unless GDK_RGBA=0 */
if (x11_screen->rgba_visual)
{
const gchar *csd_env = g_getenv ("GDK_RGBA");
if (g_strcmp0 (csd_env, "0") != 0)
x11_screen->system_visual = x11_screen->rgba_visual;
}
#ifdef G_ENABLE_DEBUG
if (_gdk_debug_flags & GDK_DEBUG_MISC)
{