Mir
buffer_stream_surfaces.h
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1 /*
2  * Copyright © 2012 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 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:
17  * Kevin DuBois <kevin.dubois@canonical.com>
18  */
19 
20 #ifndef MIR_COMPOSITOR_BUFFER_STREAM_SCENE_H_
21 #define MIR_COMPOSITOR_BUFFER_STREAM_SCENE_H_
22 
25 
26 #include <mutex>
27 
28 namespace mir
29 {
30 namespace compositor
31 {
32 
33 class BufferIDUniqueGenerator;
34 class BufferBundle;
35 class BackBufferStrategy;
36 
38 {
39 public:
40  BufferStreamSurfaces(std::shared_ptr<BufferBundle> const& swapper);
42 
43  //from mf::BufferStream
44  void swap_buffers(
45  graphics::Buffer* old_buffer, std::function<void(graphics::Buffer* new_buffer)> complete) override;
46  void with_most_recent_buffer_do(std::function<void(graphics::Buffer&)> const& exec) override;
47  MirPixelFormat pixel_format() const override;
48  void add_observer(std::shared_ptr<scene::SurfaceObserver> const& observer) override;
49  void remove_observer(std::weak_ptr<scene::SurfaceObserver> const& observer) override;
50  void associate_buffer(graphics::BufferID) override;
52 
53  //from mc::BufferStream
54  void acquire_client_buffer(std::function<void(graphics::Buffer* buffer)> complete);
56 
57  std::shared_ptr<graphics::Buffer>
58  lock_compositor_buffer(void const* user_id) override;
59 
60  geometry::Size stream_size() override;
61  void resize(geometry::Size const& size) override;
62  void allow_framedropping(bool) override;
63  void drop_outstanding_requests() override;
64  int buffers_ready_for_compositor(void const* user_id) const override;
65  void drop_old_buffers() override;
66  bool has_submitted_buffer() const override;
67  void set_scale(float scale) override;
68 
69 protected:
72 
73 private:
74  std::mutex mutable mutex;
75  std::shared_ptr<BufferBundle> const buffer_bundle;
76  scene::SurfaceObservers observers;
77  bool first_frame_posted;
78  geometry::Size logical_size; //physical size is maintained in the buffer_bundle
79  float scale;
80 };
81 
82 }
83 }
84 
85 #endif /* MIR_COMPOSITOR_BUFFER_STREAM_SCENE_H_ */
Definition: size.h:30
void remove_observer(std::weak_ptr< scene::SurfaceObserver > const &observer) override
Definition: buffer_stream_surfaces.cpp:144
All things Mir.
Definition: atomic_callback.h:25
void acquire_client_buffer(std::function< void(graphics::Buffer *buffer)> complete)
Definition: buffer_stream_surfaces.cpp:51
int buffers_ready_for_compositor(void const *user_id) const override
Definition: buffer_stream_surfaces.cpp:90
Definition: buffer_stream.h:40
Definition: buffer_stream_surfaces.h:37
void allow_framedropping(bool) override
Definition: buffer_stream_surfaces.cpp:85
void release_client_buffer(graphics::Buffer *buf)
Definition: buffer_stream_surfaces.cpp:57
void swap_buffers(graphics::Buffer *old_buffer, std::function< void(graphics::Buffer *new_buffer)> complete) override
Definition: buffer_stream_surfaces.cpp:100
geometry::Size stream_size() override
Definition: buffer_stream_surfaces.cpp:66
void resize(geometry::Size const &size) override
Definition: buffer_stream_surfaces.cpp:72
bool has_submitted_buffer() const override
Definition: buffer_stream_surfaces.cpp:118
~BufferStreamSurfaces()
Definition: buffer_stream_surfaces.cpp:39
void with_most_recent_buffer_do(std::function< void(graphics::Buffer &)> const &exec) override
Definition: buffer_stream_surfaces.cpp:124
MirPixelFormat pixel_format() const override
Definition: buffer_stream_surfaces.cpp:134
void add_observer(std::shared_ptr< scene::SurfaceObserver > const &observer) override
Definition: buffer_stream_surfaces.cpp:139
MirPixelFormat
32-bit pixel formats (8888): The order of components in the enum matches the order of the components ...
Definition: common.h:134
Definition: surface_observers.h:30
BufferStreamSurfaces & operator=(const BufferStreamSurfaces &)=delete
void set_scale(float scale) override
Definition: buffer_stream_surfaces.cpp:158
Definition: buffer.h:44
std::shared_ptr< graphics::Buffer > lock_compositor_buffer(void const *user_id) override
Definition: buffer_stream_surfaces.cpp:44
void drop_outstanding_requests() override
Definition: buffer_stream_surfaces.cpp:79
BufferStreamSurfaces(std::shared_ptr< BufferBundle > const &swapper)
Definition: buffer_stream_surfaces.cpp:31
int const size
Definition: make_socket_rpc_channel.cpp:51
void drop_old_buffers() override
Definition: buffer_stream_surfaces.cpp:95
void associate_buffer(graphics::BufferID) override
Definition: buffer_stream_surfaces.cpp:150
void disassociate_buffer(graphics::BufferID) override
Definition: buffer_stream_surfaces.cpp:154

Copyright © 2012-2015 Canonical Ltd.
Generated on Thu Sep 8 14:50:19 UTC 2016