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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* main_window.h - qcam - Main application window
*/
#pragma once
#include <memory>
#include <vector>
#include <QElapsedTimer>
#include <QIcon>
#include <QMainWindow>
#include <QMutex>
#include <QObject>
#include <QQueue>
#include <QTimer>
#include <libcamera/camera.h>
#include <libcamera/camera_manager.h>
#include <libcamera/controls.h>
#include <libcamera/framebuffer.h>
#include <libcamera/framebuffer_allocator.h>
#include <libcamera/request.h>
#include <libcamera/stream.h>
#include "../cam/stream_options.h"
#include "viewfinder.h"
class QAction;
class QComboBox;
class Image;
class HotplugEvent;
enum {
OptCamera = 'c',
OptHelp = 'h',
OptRenderer = 'r',
OptStream = 's',
OptVerbose = 'v',
};
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow(libcamera::CameraManager *cm,
const OptionsParser::Options &options);
~MainWindow();
bool event(QEvent *e) override;
private Q_SLOTS:
void quit();
void updateTitle();
void switchCamera(int index);
void toggleCapture(bool start);
void saveImageAs();
void captureRaw();
void processRaw(libcamera::FrameBuffer *buffer,
const libcamera::ControlList &metadata);
void queueRequest(libcamera::FrameBuffer *buffer);
private:
int createToolbars();
std::string chooseCamera();
int openCamera();
int startCapture();
void stopCapture();
void addCamera(std::shared_ptr<libcamera::Camera> camera);
void removeCamera(std::shared_ptr<libcamera::Camera> camera);
void requestComplete(libcamera::Request *request);
void processCapture();
void processHotplug(HotplugEvent *e);
void processViewfinder(libcamera::FrameBuffer *buffer);
/* UI elements */
QToolBar *toolbar_;
QAction *startStopAction_;
QComboBox *cameraCombo_;
QAction *saveRaw_;
ViewFinder *viewfinder_;
QIcon iconPlay_;
QIcon iconStop_;
QString title_;
QTimer titleTimer_;
/* Options */
const OptionsParser::Options &options_;
/* Camera manager, camera, configuration and buffers */
libcamera::CameraManager *cm_;
std::shared_ptr<libcamera::Camera> camera_;
libcamera::FrameBufferAllocator *allocator_;
std::unique_ptr<libcamera::CameraConfiguration> config_;
std::map<libcamera::FrameBuffer *, std::unique_ptr<Image>> mappedBuffers_;
/* Capture state, buffers queue and statistics */
bool isCapturing_;
bool captureRaw_;
libcamera::Stream *vfStream_;
libcamera::Stream *rawStream_;
std::map<const libcamera::Stream *, QQueue<libcamera::FrameBuffer *>> freeBuffers_;
QQueue<libcamera::Request *> doneQueue_;
QQueue<libcamera::Request *> freeQueue_;
QMutex mutex_; /* Protects freeBuffers_, doneQueue_, and freeQueue_ */
uint64_t lastBufferTime_;
QElapsedTimer frameRateInterval_;
uint32_t previousFrames_;
uint32_t framesCaptured_;
std::vector<std::unique_ptr<libcamera::Request>> requests_;
};
|
