From 3bf1edb8b9a3efe8accfab3c5810647d84af9ef3 Mon Sep 17 00:00:00 2001
From: Kai-Uwe Behrmann <ku.b@gmx.de>
Date: Tue, 20 May 2014 11:40:53 +0200
Subject: disable shadows on 30-bit visuals

---
 src/main.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/main.c')

diff --git a/src/main.c b/src/main.c
index 5012c4c..51bd0c8 100644
--- a/src/main.c
+++ b/src/main.c
@@ -17,6 +17,8 @@
  *
  */
 
+#include <gdk/gdk.h>
+
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif
@@ -4740,6 +4742,7 @@ static XFixed *create_gaussian_kernel(double radius,
 static int update_shadow(frame_settings * fs)
 {
     Display *xdisplay = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ());
+    GdkVisual *visual = gdk_visual_get_best_with_depth(32);
     XRenderPictFormat *format;
     GdkPixmap *pixmap;
     Picture src, dst, tmp;
@@ -4753,6 +4756,11 @@ static int update_shadow(frame_settings * fs)
     bzero(&d, sizeof(decor_t));
     window_settings *ws = fs->ws;
 
+    // TODO shadows show strong artefacts with 30-bit setups
+    // meanwhile disable here as a workaround
+    if (gdk_visual_get_bits_per_rgb(visual) == 10)
+	ws->shadow_radius = 0;
+
     //    double        save_decoration_alpha;
     static XRenderColor color;
     static XRenderColor clear = { 0x0000, 0x0000, 0x0000, 0x0000 };
-- 
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