Mir
null_display_buffer_compositor_factory.h
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1 /*
2  * Copyright © 2014 Canonical Ltd.
3  *
4  * This program is free software: you can redistribute it and/or modify it
5  * under the terms of the GNU General Public License version 2 or 3,
6  * as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  *
16  * Authored by: Alexandros Frantzis <alexandros.frantzis@canonical.com>
17  */
18 
19 #ifndef MIR_TEST_DOUBLES_NULL_DISPLAY_BUFFER_COMPOSITOR_FACTORY_H_
20 #define MIR_TEST_DOUBLES_NULL_DISPLAY_BUFFER_COMPOSITOR_FACTORY_H_
21 
22 #include "mir/compositor/display_buffer_compositor_factory.h"
23 #include "mir/compositor/display_buffer_compositor.h"
24 
25 #include <thread>
26 
27 namespace mir
28 {
29 namespace test
30 {
31 namespace doubles
32 {
33 
34 class NullDisplayBufferCompositorFactory : public compositor::DisplayBufferCompositorFactory
35 {
36 public:
37  auto create_compositor_for(graphics::DisplayBuffer&)
38  -> std::unique_ptr<compositor::DisplayBufferCompositor> override
39  {
40  struct NullDisplayBufferCompositor : compositor::DisplayBufferCompositor
41  {
42  void composite(compositor::SceneElementSequence&&)
43  {
44  // yield() is needed to ensure reasonable runtime under
45  // valgrind for some tests
46  std::this_thread::yield();
47  }
48  };
49 
50  auto raw = new NullDisplayBufferCompositor{};
51  return std::unique_ptr<NullDisplayBufferCompositor>(raw);
52  }
53 };
54 
55 }
56 }
57 }
58 
59 #endif /* MIR_TEST_DOUBLES_NULL_DISPLAY_BUFFER_COMPOSITOR_FACTORY_H_ */
AutoUnblockThread is a helper thread class that can gracefully shutdown at destruction time...
Definition: blob.h:26
auto create_compositor_for(graphics::DisplayBuffer &) -> std::unique_ptr< compositor::DisplayBufferCompositor > override
Definition: null_display_buffer_compositor_factory.h:37
Definition: null_display_buffer_compositor_factory.h:34

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