Mir
buffer.h
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1 /*
2  * Copyright © 2016 Canonical Ltd.
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU Lesser General Public License version 3 as
6  * 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 Lesser General Public License for more details.
12  *
13  * You should have received a copy of the GNU Lesser General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  *
16  * Authored by: Kevin DuBois <kevin.dubois@canonical.com>
17  */
18 
19 #ifndef MIR_CLIENT_BUFFER_H
20 #define MIR_CLIENT_BUFFER_H
21 
22 #include "mir_toolkit/mir_buffer.h"
23 #include "mir/geometry/size.h"
24 #include "atomic_callback.h"
25 #include "mir_buffer.h"
26 #include <memory>
27 #include <chrono>
28 #include <mutex>
29 
30 namespace mir
31 {
32 namespace client
33 {
34 class ClientBuffer;
35 class MemoryRegion;
36 class Buffer : public MirBuffer
37 {
38 public:
39  Buffer(
40  mir_buffer_callback cb, void* context,
41  int buffer_id,
42  std::shared_ptr<ClientBuffer> const& buffer,
43  MirConnection* connection,
44  MirBufferUsage usage);
45 
46  int rpc_id() const override;
47 
48  void submitted() override;
49  void received() override;
50  void received(MirBufferPackage const& update_message) override;
51 
52  MirNativeBuffer* as_mir_native_buffer() const override;
53  std::shared_ptr<ClientBuffer> client_buffer() const override;
54  MirGraphicsRegion map_region() override;
55 
56  void set_fence(MirNativeFence*, MirBufferAccess) override;
57  MirNativeFence* get_fence() const override;
58  bool wait_fence(MirBufferAccess, std::chrono::nanoseconds) override;
59 
60  MirBufferUsage buffer_usage() const override;
61  MirPixelFormat pixel_format() const override;
62  geometry::Size size() const override;
63 
64  MirConnection* allocating_connection() const override;
65 
66  void increment_age() override;
67  bool valid() const override;
68  char const* error_message() const override;
69  void set_callback(mir_buffer_callback callback, void* context) override;
70 private:
71  int const buffer_id;
72  std::shared_ptr<ClientBuffer> const buffer;
73 
75 
76  std::mutex mutex;
77  bool owned;
78  std::shared_ptr<MemoryRegion> mapped_region;
79  MirConnection* const connection;
80  MirBufferUsage const usage;
81 };
82 }
83 }
84 #endif /* MIR_CLIENT_BUFFER_H_ */
Definition: size.h:30
Definition: mir_buffer.h:34
All things Mir.
Definition: atomic_callback.h:25
void * MirNativeFence
Definition: client_types_nbs.h:34
bool valid() const override
Definition: buffer.cpp:142
Buffer(mir_buffer_callback cb, void *context, int buffer_id, std::shared_ptr< ClientBuffer > const &buffer, MirConnection *connection, MirBufferUsage usage)
Definition: buffer.cpp:25
MirGraphicsRegion map_region() override
Definition: buffer.cpp:80
MirBufferUsage buffer_usage() const override
Definition: buffer.cpp:118
Definition: mir_native_buffer.h:30
MirNativeBuffer * as_mir_native_buffer() const override
Definition: buffer.cpp:93
MirConnection * allocating_connection() const override
Definition: buffer.cpp:113
Definition: atomic_callback.h:30
MirBufferAccess
Definition: client_types_nbs.h:38
void set_callback(mir_buffer_callback callback, void *context) override
Definition: buffer.cpp:152
char const * error_message() const override
Definition: buffer.cpp:147
void increment_age() override
Definition: buffer.cpp:137
MirBufferUsage
MirBufferUsage specifies how a surface can and will be used.
Definition: client_types.h:159
MirPixelFormat
32-bit pixel formats (8888): The order of components in the enum matches the order of the components ...
Definition: common.h:134
void submitted() override
Definition: buffer.cpp:45
int rpc_id() const override
Definition: buffer.cpp:40
MirNativeFence * get_fence() const override
Definition: buffer.cpp:103
Definition: mir_connection.h:96
Retrieved information about a MirSurface.
Definition: client_types.h:236
std::shared_ptr< ClientBuffer > client_buffer() const override
Definition: buffer.cpp:132
void(* mir_buffer_callback)(MirBuffer *, void *context)
Definition: client_types_nbs.h:36
geometry::Size size() const override
Definition: buffer.cpp:128
void received() override
Definition: buffer.cpp:55
bool wait_fence(MirBufferAccess, std::chrono::nanoseconds) override
Definition: buffer.cpp:108
Definition: buffer.h:36
void set_fence(MirNativeFence *, MirBufferAccess) override
Definition: buffer.cpp:98
MirPixelFormat pixel_format() const override
Definition: buffer.cpp:123

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