Mesa (master): draw: initialize prim header flags when clipping lines

[Roland Scheidegger]

Module: Mesa
Branch: master
Commit: 9db7309595309ff0835c701108827ffc8c906751
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9db7309595309ff0835c701108827ffc8c906751

Author: Roland Scheidegger <sroland at vmware.com>
Date:   Thu Jan  7 19:38:15 2016 +0100

draw: initialize prim header flags when clipping lines

Otherwise, clipped lines would have undefined stippling reset bit if line
stippling is enabled.
(Untested, and I just assume copying over the bits from the original line
is actually the right thing to do.)

Reviewed-by: Jose Fonseca <jfonseca at vmware.com>

---

 src/gallium/auxiliary/draw/draw_pipe_clip.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/gallium/auxiliary/draw/draw_pipe_clip.c b/src/gallium/auxiliary/draw/draw_pipe_clip.c
index 67d8eca..2d92d65 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_clip.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_clip.c
@@ -611,6 +611,8 @@ do_clip_line(struct draw_stage *stage,
    struct prim_header newprim;
    int viewport_index;
 
+   newprim.flags = header->flags;
+
    if (stage->draw->rasterizer->flatshade_first) {
       prov_vertex = v0;
    }