wined3d: Use resource mapping functions in process_vertices_strided().

dlls/wined3d/device.c

@@ -2885,6 +2885,8 @@ static HRESULT process_vertices_strided(const struct wined3d_device *device, DWO
         DWORD DestFVF)
 {
     struct wined3d_matrix mat, proj_mat, view_mat, world_mat;
+    struct wined3d_map_desc map_desc;
+    struct wined3d_box box = {0};
     struct wined3d_viewport vp;
     UINT vertex_size;
     unsigned int i;
@@ -2925,11 +2927,14 @@ static HRESULT process_vertices_strided(const struct wined3d_device *device, DWO
         doClip = FALSE;
 
     vertex_size = get_flexible_vertex_size(DestFVF);
-    if (FAILED(hr = wined3d_buffer_map(dest, dwDestIndex * vertex_size, dwCount * vertex_size, &dest_ptr, 0)))
+    box.left = dwDestIndex * vertex_size;
+    box.right = box.left + dwCount * vertex_size;
+    if (FAILED(hr = wined3d_resource_map(&dest->resource, 0, &map_desc, &box, 0)))
     {
         WARN("Failed to map buffer, hr %#x.\n", hr);
         return hr;
     }
+    dest_ptr = map_desc.data;
 
     wined3d_device_get_transform(device, WINED3D_TS_VIEW, &view_mat);
     wined3d_device_get_transform(device, WINED3D_TS_PROJECTION, &proj_mat);
@@ -3139,7 +3144,7 @@ static HRESULT process_vertices_strided(const struct wined3d_device *device, DWO
         }
     }
 
-    wined3d_buffer_unmap(dest);
+    wined3d_resource_unmap(&dest->resource, 0);
 
     return WINED3D_OK;
 }