st/nine: Handle READONLY for buffer MANAGED pool

READONLY won't trigger an upload.

Cc: "11.2" <mesa-stable@lists.freedesktop.org>

Signed-off-by: Axel Davy <axel.davy@ens.fr>

1 files changed, 10 insertions, 7 deletions

diff --git a/src/gallium/state_trackers/nine/buffer9.c b/src/gallium/state_trackers/nine/buffer9.c
index e066fc5..8efb4ce 100644
--- a/src/gallium/state_trackers/nine/buffer9.c
+++ b/src/gallium/state_trackers/nine/buffer9.c
@@ -174,13 +174,16 @@ NineBuffer9_Lock( struct NineBuffer9 *This,
     u_box_1d(OffsetToLock, SizeToLock, &box);
 
     if (This->base.pool == D3DPOOL_MANAGED) {
-        if (!This->managed.dirty) {
-            assert(LIST_IS_EMPTY(&This->managed.list));
-            list_add(&This->managed.list, &This->base.base.device->update_buffers);
-            This->managed.dirty = TRUE;
-            This->managed.dirty_box = box;
-        } else {
-            u_box_union_2d(&This->managed.dirty_box, &This->managed.dirty_box, &box);
+        /* READONLY doesn't dirty the buffer */
+        if (!(Flags & D3DLOCK_READONLY)) {
+            if (!This->managed.dirty) {
+                assert(LIST_IS_EMPTY(&This->managed.list));
+                list_add(&This->managed.list, &This->base.base.device->update_buffers);
+                This->managed.dirty = TRUE;
+                This->managed.dirty_box = box;
+            } else {
+                u_box_union_2d(&This->managed.dirty_box, &This->managed.dirty_box, &box);
+            }
         }
         *ppbData = (char *)This->managed.data + OffsetToLock;
         DBG("returning pointer %p\n", *ppbData);