From d41bc08d1ae8c4784c09d8977816c0fadab1ba52 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Thu, 17 Nov 2011 16:37:26 +0100
Subject: xserver mesa git update 17 nov 2011

---
 mesalib/src/mesa/swrast/s_texrender.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'mesalib/src/mesa/swrast/s_texrender.c')

diff --git a/mesalib/src/mesa/swrast/s_texrender.c b/mesalib/src/mesa/swrast/s_texrender.c
index 83e7a6a03..3734ce6d5 100644
--- a/mesalib/src/mesa/swrast/s_texrender.c
+++ b/mesalib/src/mesa/swrast/s_texrender.c
@@ -567,6 +567,19 @@ update_wrapper(struct gl_context *ctx, struct gl_renderbuffer_attachment *att)
    trb->Base.InternalFormat = trb->TexImage->Base.InternalFormat;
    trb->Base.Format = trb->TexImage->Base.TexFormat;
 
+   /* Set the gl_renderbuffer::Data field so that mapping the buffer
+    * in renderbuffer.c succeeds.
+    */
+   if (att->Texture->Target == GL_TEXTURE_3D ||
+       att->Texture->Target == GL_TEXTURE_2D_ARRAY_EXT) {
+      trb->Base.Data = trb->TexImage->Buffer +
+         trb->TexImage->ImageOffsets[trb->Zoffset] *
+         _mesa_get_format_bytes(trb->TexImage->Base.TexFormat);
+   }
+   else {
+      trb->Base.Data = trb->TexImage->Buffer;
+   }
+
    /* XXX may need more special cases here */
    switch (trb->TexImage->Base.TexFormat) {
    case MESA_FORMAT_Z24_S8:
-- 
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