From fec1d215f623221cb52f22c8f10e5de99ebc9cc2 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keith@tungstengraphics.com>
Date: Thu, 8 May 2008 22:10:15 +0100
Subject: xlib: more SP_NO_RAST support

For some resaon normal (non-display-buffer) buffers are being allocated
through Xshm...  Bypass at least for SP_NO_RAST
---
 src/gallium/winsys/xlib/fakeglx.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/gallium/winsys/xlib/fakeglx.c')

diff --git a/src/gallium/winsys/xlib/fakeglx.c b/src/gallium/winsys/xlib/fakeglx.c
index ec77e81fed..2c0075e934 100644
--- a/src/gallium/winsys/xlib/fakeglx.c
+++ b/src/gallium/winsys/xlib/fakeglx.c
@@ -1689,6 +1689,15 @@ static void
 Fake_glXSwapBuffers( Display *dpy, GLXDrawable drawable )
 {
    XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
+   static boolean firsttime = 1, no_rast = 0;
+
+   if (firsttime) {
+      no_rast = getenv("SP_NO_RAST") != NULL;
+      firsttime = 0;
+   }
+
+   if (no_rast)
+      return;
 
    if (buffer) {
       XMesaSwapBuffers(buffer);
-- 
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