nvc0: don't set NEW_IDXBUF in nvc0_switch_pipe_context if none is bound

diff --git a/src/gallium/drivers/nvc0/nvc0_state_validate.c b/src/gallium/drivers/nvc0/nvc0_state_validate.c
index c2d115e..e35aae5 100644 (file)
--- a/src/gallium/drivers/nvc0/nvc0_state_validate.c
+++ b/src/gallium/drivers/nvc0/nvc0_state_validate.c
@@ -463,6 +463,8 @@ nvc0_switch_pipe_context(struct nvc0_context *ctx_to)
 
    if (!ctx_to->vertex)
       ctx_to->dirty &= ~(NVC0_NEW_VERTEX | NVC0_NEW_ARRAYS);
+   if (!ctx_to->idxbuf.buffer)
+      ctx_to->dirty &= ~NVC0_NEW_IDXBUF;
 
    if (!ctx_to->vertprog)
       ctx_to->dirty &= ~NVC0_NEW_VERTPROG;