Mesa (master): st/mesa: fix renderbuffer internal format for accum buffer

[Brian Paul]

Module: Mesa
Branch: master
Commit: b438005d961bc7fcc8cbedc34b8b15dfd09365b1
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b438005d961bc7fcc8cbedc34b8b15dfd09365b1

Author: Brian Paul <brianp at vmware.com>
Date:   Mon Jun  6 08:06:34 2011 -0600

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 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/src/mesa/state_tracker/st_cb_fbo.c b/src/mesa/state_tracker/st_cb_fbo.c
index 64424f7..5b9e203 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;