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gbm_display_buffer.h
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1 /*
2  * Copyright © 2013 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: Alexandros Frantzis <alexandros.frantzis@canonical.com>
17  */
18 
19 #ifndef MIR_GRAPHICS_GBM_GBM_DISPLAY_BUFFER_H_
20 #define MIR_GRAPHICS_GBM_GBM_DISPLAY_BUFFER_H_
21 
23 #include "gbm_display_helpers.h"
24 
25 #include <vector>
26 #include <memory>
27 #include <atomic>
28 
29 namespace mir
30 {
31 namespace graphics
32 {
33 
34 class DisplayReport;
35 
36 namespace gbm
37 {
38 
39 class GBMPlatform;
40 class BufferObject;
41 class KMSOutput;
42 
44 {
45 public:
46  GBMDisplayBuffer(std::shared_ptr<GBMPlatform> const& platform,
47  std::shared_ptr<DisplayReport> const& listener,
48  std::vector<std::shared_ptr<KMSOutput>> const& outputs,
49  GBMSurfaceUPtr surface_gbm,
50  geometry::Rectangle const& area,
51  EGLContext shared_context);
53 
55  void make_current();
56  void release_current();
57  void post_update();
58 
59  bool can_bypass() const override;
60  void post_update(std::shared_ptr<graphics::Buffer> bypass_buf) override;
61  void schedule_set_crtc();
62 
63 private:
64  BufferObject* get_front_buffer_object();
65  BufferObject* get_buffer_object(struct gbm_bo *bo);
66  bool schedule_and_wait_for_page_flip(BufferObject* bufobj);
67 
68  BufferObject* last_flipped_bufobj;
69  std::shared_ptr<graphics::Buffer> last_flipped_bypass_buf;
70  std::shared_ptr<GBMPlatform> const platform;
71  std::shared_ptr<DisplayReport> const listener;
72  /* DRM helper from GBMPlatform */
73  helpers::DRMHelper& drm;
74  std::vector<std::shared_ptr<KMSOutput>> outputs;
75  GBMSurfaceUPtr surface_gbm;
78  std::atomic<bool> needs_set_crtc;
79 };
80 
81 }
82 }
83 }
84 
85 #endif /* MIR_GRAPHICS_GBM_GBM_DISPLAY_BUFFER_H_ */

Copyright © 2012,2013 Canonical Ltd.
Generated on Wed Oct 30 18:52:19 UTC 2013