wined3d: Drop the "vbo" check in wined3d_device_process_vertices().

dlls/wined3d/device.c

@@ -3452,11 +3452,12 @@ HRESULT CDECL wined3d_device_process_vertices(struct wined3d_device *device,
         const struct wined3d_vertex_declaration *declaration, DWORD flags, DWORD dst_fvf)
 {
     struct wined3d_state *state = &device->stateBlock->state;
-    BOOL vbo = FALSE, streamWasUP = state->user_stream;
     struct wined3d_stream_info stream_info;
     const struct wined3d_gl_info *gl_info;
+    BOOL streamWasUP = state->user_stream;
     struct wined3d_context *context;
     struct wined3d_shader *vs;
+    unsigned int i;
     HRESULT hr;
 
     TRACE("device %p, src_start_idx %u, dst_idx %u, vertex_count %u, "
@@ -3477,23 +3478,21 @@ HRESULT CDECL wined3d_device_process_vertices(struct wined3d_device *device,
     vs = state->vertex_shader;
     state->vertex_shader = NULL;
     state->user_stream = FALSE;
-    device_stream_info_from_declaration(device, &stream_info, &vbo);
+    device_stream_info_from_declaration(device, &stream_info, NULL);
     state->user_stream = streamWasUP;
     state->vertex_shader = vs;
 
-    if (vbo || src_start_idx)
-    {
-        unsigned int i;
-        /* ProcessVertices can't convert FROM a vbo, and vertex buffers used to source into ProcessVertices are
-         * unlikely to ever be used for drawing. Release vbos in those buffers and fix up the stream_info structure
+    /* We can't convert FROM a VBO, and vertex buffers used to source into
+     * process_vertices() are unlikely to ever be used for drawing. Release
+     * VBOs in those buffers and fix up the stream_info structure.
      *
-         * Also get the start index in, but only loop over all elements if there's something to add at all.
-         */
+     * Also apply the start index. */
     for (i = 0; i < (sizeof(stream_info.elements) / sizeof(*stream_info.elements)); ++i)
     {
         struct wined3d_stream_info_element *e;
 
-            if (!(stream_info.use_map & (1 << i))) continue;
+        if (!(stream_info.use_map & (1 << i)))
+            continue;
 
         e = &stream_info.elements[i];
         if (e->data.buffer_object)
@@ -3509,7 +3508,6 @@ HRESULT CDECL wined3d_device_process_vertices(struct wined3d_device *device,
         if (e->data.addr)
             e->data.addr += e->stride * src_start_idx;
     }
-    }
 
     hr = process_vertices_strided(device, dst_idx, vertex_count,
             &stream_info, dst_buffer, flags, dst_fvf);