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authorAlan Hourihane <alanh@vmware.com>2009-02-20 14:40:08 +0000
committerAlan Hourihane <alanh@vmware.com>2009-02-23 20:29:56 +0000
commit01c0c01a6d737d71a75cbd0de65c87c42b7ca230 (patch)
tree4bf02a33376a8a21b757ad5711659b4d1ed817bd /src/mesa/state_tracker
parent6b722272709abed5468428da5d2c8951c84867d2 (diff)
mesa: only call update_buffer when it's available
Diffstat (limited to 'src/mesa/state_tracker')
-rw-r--r--src/mesa/state_tracker/st_cb_viewport.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_cb_viewport.c b/src/mesa/state_tracker/st_cb_viewport.c
index 6adf3162c1..7b175288fc 100644
--- a/src/mesa/state_tracker/st_cb_viewport.c
+++ b/src/mesa/state_tracker/st_cb_viewport.c
@@ -40,7 +40,7 @@ static void st_viewport(GLcontext * ctx, GLint x, GLint y,
{
struct st_context *st = ctx->st;
- if (st->pipe->winsys)
+ if (st->pipe->winsys && st->pipe->winsys->update_buffer)
st->pipe->winsys->update_buffer( st->pipe->winsys,
st->pipe->priv );
}