wined3d: Get rid of the user_stream field from wined3d_state.

dlls/wined3d/context.c

@@ -2298,7 +2298,7 @@ BOOL context_apply_draw_state(struct wined3d_context *context, struct wined3d_de
     device_preload_textures(device);
     if (isStateDirty(context, STATE_VDECL) || isStateDirty(context, STATE_STREAMSRC))
         device_update_stream_info(device, context->gl_info);
-    if (state->index_buffer && !state->user_stream)
+    if (state->index_buffer && !device->up_strided)
     {
         if (device->strided_streams.all_vbo)
             wined3d_buffer_preload(state->index_buffer);

dlls/wined3d/device.c

@@ -4162,12 +4162,10 @@ HRESULT CDECL wined3d_device_draw_indexed_primitive_strided(struct wined3d_devic
 
     prev_idx_format = device->stateBlock->state.index_format;
     device->stateBlock->state.index_format = index_data_format_id;
-    device->stateBlock->state.user_stream = TRUE;
     device->stateBlock->state.base_vertex_index = 0;
     device->up_strided = strided_data;
     draw_primitive(device, 0, index_count, 0, 0, TRUE, index_data);
     device->up_strided = NULL;
-    device->stateBlock->state.user_stream = FALSE;
     device->stateBlock->state.index_format = prev_idx_format;
 
     device_invalidate_state(device, STATE_VDECL);

dlls/wined3d/drawprim.c

@@ -676,7 +676,7 @@ void draw_primitive(struct wined3d_device *device, UINT start_idx, UINT index_co
 
     if (indexed)
     {
-        if (!state->user_stream)
+        if (!device->up_strided)
         {
             struct wined3d_buffer *index_buffer = state->index_buffer;
             if (!index_buffer->buffer_object || !stream_info->all_vbo)

dlls/wined3d/wined3d_private.h

@@ -2296,7 +2296,6 @@ struct wined3d_state
     struct wined3d_vertex_declaration *vertex_declaration;
     struct wined3d_stream_output stream_output[MAX_STREAM_OUT];
     struct wined3d_stream_state streams[MAX_STREAMS + 1 /* tesselated pseudo-stream */];
-    BOOL user_stream;
     struct wined3d_buffer *index_buffer;
     enum wined3d_format_id index_format;
     INT base_vertex_index;