From 715715e230bbe3e90fed566230b4a10ed0e89e90 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Wed, 18 Jun 2008 09:30:13 -0600
Subject: [PATCH] mesa: fix ReadBuffer initialization

---
 src/mesa/main/context.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 19dd55f9d94..ed0addcdbbf 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1037,6 +1037,8 @@ init_attrib_groups(GLcontext *ctx)
    _mesa_init_multisample( ctx );
 #if FEATURE_pixel_transfer
    _mesa_init_pixel( ctx );
+#else
+   ctx->Pixel.ReadBuffer = ctx->Visual.doubleBufferMode ? GL_BACK : GL_FRONT;
 #endif
    _mesa_init_pixelstore( ctx );
    _mesa_init_point( ctx );
-- 
2.30.2