From 63bfcd0be46413dda8c22b914d12f66ea5d5c66d Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Fri, 23 May 2014 19:36:09 +0200
Subject: libX11 mesa xserver pixman git update 23 May 2014

xserver          commit db2e708f31a162c6c66643d3559dd5f3e21ee06b
libX11           commit e3dc0d17339e61eaf0b51b8907510984e3bf23cb
pixman           commit 9cd283b2eb8279824406bfd47b020d21fc00cf82
mesa             commit 404387ecd72a4a9ace8c1fa6895823aabfd759ad
---
 xorg-server/glx/glxext.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'xorg-server/glx/glxext.c')

diff --git a/xorg-server/glx/glxext.c b/xorg-server/glx/glxext.c
index c0142fe2e..c2de3cedd 100644
--- a/xorg-server/glx/glxext.c
+++ b/xorg-server/glx/glxext.c
@@ -316,6 +316,23 @@ GlxPushProvider(__GLXprovider * provider)
     __glXProviderStack = provider;
 }
 
+static Bool
+checkScreenVisuals(void)
+{
+    int i, j;
+
+    for (i = 0; i < screenInfo.numScreens; i++) {
+        ScreenPtr screen = screenInfo.screens[i];
+        for (j = 0; j < screen->numVisuals; j++) {
+            if (screen->visuals[j].class == TrueColor ||
+                screen->visuals[j].class == DirectColor)
+                return True;
+        }
+    }
+
+    return False;
+}
+
 /*
 ** Initialize the GLX extension.
 */
@@ -334,6 +351,10 @@ GlxExtensionInit(void)
         *stack = &__glXDRISWRastProvider;
     }
 
+    /* Mesa requires at least one True/DirectColor visual */
+    if (!checkScreenVisuals())
+        return;
+
     __glXContextRes = CreateNewResourceType((DeleteType) ContextGone,
                                             "GLXContext");
     __glXDrawableRes = CreateNewResourceType((DeleteType) DrawableGone,
-- 
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