llvmpipe: avoid flushing depth buffer cache on swapbuffers

There's no need to push out depth buffer contents on swapbuffers.

Note that this change doesn't throw away depth buffer changes, it simply
holds them in the cache over calls to swapbuffers.  The hope is
that swapbuffers will be followed by a clear() which means in that case
we won't have to write the changes out.

1 files changed, 1 insertions, 4 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_context.c b/src/gallium/drivers/llvmpipe/lp_context.c
index 8341cc1bc11..aa2159b8d5e 100644
--- a/src/gallium/drivers/llvmpipe/lp_context.c
+++ b/src/gallium/drivers/llvmpipe/lp_context.c
@@ -72,13 +72,10 @@ llvmpipe_unmap_transfers(struct llvmpipe_context *lp)
 {
    uint i;
 
-   for (i = 0; i < lp->framebuffer.nr_cbufs; i++)
-      lp_flush_tile_cache(lp->cbuf_cache[i]);
-   lp_flush_tile_cache(lp->zsbuf_cache);
-
    for (i = 0; i < lp->framebuffer.nr_cbufs; i++) {
       lp_tile_cache_unmap_transfers(lp->cbuf_cache[i]);
    }
+
    lp_tile_cache_unmap_transfers(lp->zsbuf_cache);
 }