Zebediah Figura : wined3d: Do not allocate upload bufers for resources pinned to system memory.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: f257daf390362d88972502551b6fe2d15996f0d6
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=f257daf390362d88972502551...

Author: Zebediah Figura <zfigura(a)codeweavers.com>
Date:   Thu Feb 17 23:01:36 2022 -0600

wined3d: Do not allocate upload bufers for resources pinned to system memory.

Signed-off-by: Zebediah Figura <zfigura(a)codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/wined3d/cs.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/dlls/wined3d/cs.c b/dlls/wined3d/cs.c
index 9f4a39cfe7e..027a6786717 100644
--- a/dlls/wined3d/cs.c
+++ b/dlls/wined3d/cs.c
@@ -3092,6 +3092,12 @@ static bool wined3d_cs_map_upload_bo(struct wined3d_device_context *context, str
             return NULL;
         }
 
+        if (resource->pin_sysmem)
+        {
+            TRACE("Not allocating an upload buffer because system memory is pinned for this resource.\n");
+            return NULL;
+        }
+
         if (flags & WINED3D_MAP_DISCARD)
         {
             if (!device->adapter->adapter_ops->adapter_alloc_bo(device, resource, sub_resource_idx, &addr))