d3d9: Don't upload unused system memory vertex buffers.

dlls/d3d9/d3d9_private.h

@@ -251,6 +251,7 @@ struct d3d9_vertex_declaration
     LONG refcount;
     D3DVERTEXELEMENT9 *elements;
     UINT element_count;
+    DWORD stream_map;
     struct wined3d_vertex_declaration *wined3d_declaration;
     DWORD fvf;
     IDirect3DDevice9Ex *parent_device;

dlls/d3d9/device.c

@@ -2730,9 +2730,11 @@ static void d3d9_generate_auto_mipmaps(struct d3d9_device *device)
 static void d3d9_device_upload_sysmem_vertex_buffers(struct d3d9_device *device,
         int base_vertex, unsigned int start_vertex, unsigned int vertex_count)
 {
+    struct wined3d_vertex_declaration *wined3d_decl;
     struct wined3d_box box = {0, 0, 0, 1, 0, 1};
     struct d3d9_vertexbuffer *d3d9_buffer;
     struct wined3d_resource *dst_resource;
+    struct d3d9_vertex_declaration *decl;
     unsigned int i, offset, stride, map;
     struct wined3d_buffer *dst_buffer;
     struct wined3d_resource_desc desc;
@@ -2740,13 +2742,17 @@ static void d3d9_device_upload_sysmem_vertex_buffers(struct d3d9_device *device,
 
     if (!device->sysmem_vb)
         return;
+    wined3d_decl = wined3d_device_get_vertex_declaration(device->wined3d_device);
+    if (!wined3d_decl)
+        return;
 
     if (base_vertex >= 0 || start_vertex >= -base_vertex)
         start_vertex += base_vertex;
     else
         FIXME("System memory vertex data offset is negative.\n");
 
-    map = device->sysmem_vb;
+    decl = wined3d_vertex_declaration_get_parent(wined3d_decl);
+    map = decl->stream_map & device->sysmem_vb;
     while (map)
     {
         i = wined3d_bit_scan(&map);

dlls/d3d9/vertexdeclaration.c

@@ -321,7 +321,7 @@ static const struct wined3d_parent_ops d3d9_vertexdeclaration_wined3d_parent_ops
 };
 
 static HRESULT convert_to_wined3d_declaration(const D3DVERTEXELEMENT9 *d3d9_elements,
-        struct wined3d_vertex_element **wined3d_elements, UINT *element_count)
+        struct wined3d_vertex_element **wined3d_elements, UINT *element_count, DWORD *stream_map)
 {
     const D3DVERTEXELEMENT9* element;
     UINT count = 1;
@@ -329,6 +329,8 @@ static HRESULT convert_to_wined3d_declaration(const D3DVERTEXELEMENT9 *d3d9_elem
 
     TRACE("d3d9_elements %p, wined3d_elements %p, element_count %p\n", d3d9_elements, wined3d_elements, element_count);
 
+    *stream_map = 0;
+
     element = d3d9_elements;
     while (element++->Stream != 0xff && count++ < 128);
 
@@ -360,6 +362,7 @@ static HRESULT convert_to_wined3d_declaration(const D3DVERTEXELEMENT9 *d3d9_elem
         (*wined3d_elements)[i].method = d3d9_elements[i].Method;
         (*wined3d_elements)[i].usage = d3d9_elements[i].Usage;
         (*wined3d_elements)[i].usage_idx = d3d9_elements[i].UsageIndex;
+        *stream_map |= 1u << d3d9_elements[i].Stream;
     }
 
     *element_count = count;
@@ -375,7 +378,8 @@ static HRESULT vertexdeclaration_init(struct d3d9_vertex_declaration *declaratio
     UINT element_count;
     HRESULT hr;
 
-    hr = convert_to_wined3d_declaration(elements, &wined3d_elements, &wined3d_element_count);
+    hr = convert_to_wined3d_declaration(elements, &wined3d_elements, &wined3d_element_count,
+            &declaration->stream_map);
     if (FAILED(hr))
     {
         WARN("Failed to create wined3d vertex declaration elements, hr %#x.\n", hr);