Mesa (10.3): util/primconvert: take ib offset into account

[Emil Velikov]

Module: Mesa
Branch: 10.3
Commit: 103fadef9d0290fd90fce2200a75643cb244cd8e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=103fadef9d0290fd90fce2200a75643cb244cd8e

Author: Ilia Mirkin <imirkin at alum.mit.edu>
Date:   Thu Dec  4 18:56:36 2014 -0500

util/primconvert: take ib offset into account

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Cc: "10.4 10.3" <mesa-stable at lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp at vmware.com>
Reviewed-by: Rob Clark <robclark at freedesktop.org>
(cherry picked from commit c3bed13604fdcd50324f3535ef38d25f1e08245d)

---

 src/gallium/auxiliary/indices/u_primconvert.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/indices/u_primconvert.c b/src/gallium/auxiliary/indices/u_primconvert.c
index ab5fc85..8cd7c91 100644
--- a/src/gallium/auxiliary/indices/u_primconvert.c
+++ b/src/gallium/auxiliary/indices/u_primconvert.c
@@ -136,7 +136,7 @@ util_primconvert_draw_vbo(struct primconvert_context *pc,
       src = ib->user_buffer;
       if (!src) {
          src = pipe_buffer_map(pc->pipe, ib->buffer,
-                               PIPE_TRANSFER_READ, &src_transfer);
+                               PIPE_TRANSFER_READ, &src_transfer) + ib->offset;
       }
    }
    else {