From b438005d961bc7fcc8cbedc34b8b15dfd09365b1 Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Mon, 6 Jun 2011 08:06:34 -0600
Subject: [PATCH] st/mesa: fix renderbuffer internal format for accum buffer

Fixes an accum buffer regression since switching to the table-based
format selection code.
---
 src/mesa/state_tracker/st_cb_fbo.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mesa/state_tracker/st_cb_fbo.c b/src/mesa/state_tracker/st_cb_fbo.c
index 64424f77634..5b9e2037423 100644
--- a/src/mesa/state_tracker/st_cb_fbo.c
+++ b/src/mesa/state_tracker/st_cb_fbo.c
@@ -270,7 +270,8 @@ st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw)
       strb->Base.InternalFormat = GL_STENCIL_INDEX8_EXT;
       break;
    case PIPE_FORMAT_R16G16B16A16_SNORM:
-      strb->Base.InternalFormat = GL_RGBA16;
+      /* accum buffer */
+      strb->Base.InternalFormat = GL_RGBA16_SNORM;
       break;
    case PIPE_FORMAT_R8_UNORM:
       strb->Base.InternalFormat = GL_R8;
-- 
2.30.2