blob: 21a1ec4c574e1ee2b9f9cf56f20ee47c4c4d65b4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* buffer.h - Buffer handling
*/
#ifndef __LIBCAMERA_BUFFER_H__
#define __LIBCAMERA_BUFFER_H__
#include <vector>
#include <libcamera/signal.h>
namespace libcamera {
class BufferPool;
class Plane final
{
public:
Plane();
~Plane();
int dmabuf() const { return fd_; }
int setDmabuf(int fd, unsigned int length);
void *mem();
unsigned int length() const { return length_; }
private:
int mmap();
int munmap();
int fd_;
unsigned int length_;
void *mem_;
};
class Buffer final
{
public:
Buffer();
unsigned int index() const { return index_; }
std::vector<Plane> &planes() { return planes_; }
Signal<Buffer *> completed;
private:
friend class BufferPool;
unsigned int index_;
std::vector<Plane> planes_;
};
class BufferPool final
{
public:
~BufferPool();
void createBuffers(unsigned int count);
void destroyBuffers();
unsigned int count() const { return buffers_.size(); }
std::vector<Buffer> &buffers() { return buffers_; }
private:
std::vector<Buffer> buffers_;
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_BUFFER_H__ */
|
