Mesa (master): st/mesa: check in advance in st_draw_vbo whether the bitmap cache is empty

[Marek Olšák]

Module: Mesa
Branch: master
Commit: 86f99c1e4c9aec6433ae1c6a68f8f9d395cbfac6
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=86f99c1e4c9aec6433ae1c6a68f8f9d395cbfac6

Author: Marek Olšák <marek.olsak at amd.com>
Date:   Sun Apr  9 16:48:40 2017 +0200

st/mesa: check in advance in st_draw_vbo whether the bitmap cache is empty

Reviewed-by: Ilia Mirkin <imirkin at alum.mit.edu>
Reviewed-by: Brian Paul <brianp at vmware.com>

---

 src/mesa/state_tracker/st_draw.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/mesa/state_tracker/st_draw.c b/src/mesa/state_tracker/st_draw.c
index 8069f10788..d16160b656 100644
--- a/src/mesa/state_tracker/st_draw.c
+++ b/src/mesa/state_tracker/st_draw.c
@@ -182,7 +182,9 @@ st_draw_vbo(struct gl_context *ctx,
    /* Mesa core state should have been validated already */
    assert(ctx->NewState == 0x0);
 
-   st_flush_bitmap_cache(st);
+   if (unlikely(!st->bitmap.cache.empty))
+      st_flush_bitmap_cache(st);
+
    st_invalidate_readpix_cache(st);
 
    /* Validate state. */