From 0d58723cde31703f13f2e8e0747cde30b9e5d6de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= <maraeo@gmail.com>
Date: Sun, 19 Jun 2011 19:38:48 +0200
Subject: [PATCH] u_vbuf_mgr: fix uploading if format size is greater than
 stride

---
 src/gallium/auxiliary/util/u_vbuf_mgr.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gallium/auxiliary/util/u_vbuf_mgr.c b/src/gallium/auxiliary/util/u_vbuf_mgr.c
index 04149525ea7..fdfa9fcca3d 100644
--- a/src/gallium/auxiliary/util/u_vbuf_mgr.c
+++ b/src/gallium/auxiliary/util/u_vbuf_mgr.c
@@ -537,6 +537,11 @@ static void u_vbuf_upload_buffers(struct u_vbuf_mgr_priv *mgr,
          } else if (vb->stride) {
             first = vb->stride * min_index;
             size = vb->stride * count;
+
+            /* Unusual case when stride is smaller than the format size.
+             * XXX This won't work with interleaved arrays. */
+            if (mgr->ve->native_format_size[i] > vb->stride)
+               size += mgr->ve->native_format_size[i] - vb->stride;
          } else {
             first = 0;
             size = mgr->ve->native_format_size[i];