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
129
130
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* controls.cpp - V4L2 device controls handling test
*/
#include <algorithm>
#include <array>
#include <iostream>
#include <limits.h>
#include "libcamera/internal/v4l2_videodevice.h"
#include "v4l2_videodevice_test.h"
/* These come from the vivid driver. */
#define VIVID_CID_CUSTOM_BASE (V4L2_CID_USER_BASE | 0xf000)
#define VIVID_CID_U8_4D_ARRAY (VIVID_CID_CUSTOM_BASE + 10)
/* Helper for VIVID_CID_U8_4D_ARRAY control array size: not from kernel. */
#define VIVID_CID_U8_ARRAY_SIZE (2 * 3 * 4 * 5)
using namespace std;
using namespace libcamera;
class V4L2ControlTest : public V4L2VideoDeviceTest
{
public:
V4L2ControlTest()
: V4L2VideoDeviceTest("vivid", "vivid-000-vid-cap")
{
}
protected:
int run()
{
const ControlInfoMap &infoMap = capture_->controls();
/* Test control enumeration. */
if (infoMap.empty()) {
cerr << "Failed to enumerate controls" << endl;
return TestFail;
}
if (infoMap.find(V4L2_CID_BRIGHTNESS) == infoMap.end() ||
infoMap.find(V4L2_CID_CONTRAST) == infoMap.end() ||
infoMap.find(V4L2_CID_SATURATION) == infoMap.end() ||
infoMap.find(VIVID_CID_U8_4D_ARRAY) == infoMap.end()) {
cerr << "Missing controls" << endl;
return TestFail;
}
const ControlInfo &brightness = infoMap.find(V4L2_CID_BRIGHTNESS)->second;
const ControlInfo &contrast = infoMap.find(V4L2_CID_CONTRAST)->second;
const ControlInfo &saturation = infoMap.find(V4L2_CID_SATURATION)->second;
const ControlInfo &u8 = infoMap.find(VIVID_CID_U8_4D_ARRAY)->second;
/* Test getting controls. */
ControlList ctrls = capture_->getControls({ V4L2_CID_BRIGHTNESS,
V4L2_CID_CONTRAST,
V4L2_CID_SATURATION,
VIVID_CID_U8_4D_ARRAY });
if (ctrls.empty()) {
cerr << "Failed to get controls" << endl;
return TestFail;
}
if (ctrls.infoMap() != &infoMap) {
cerr << "Incorrect infoMap for retrieved controls" << endl;
return TestFail;
}
if (ctrls.get(V4L2_CID_BRIGHTNESS).get<int32_t>() == -1 ||
ctrls.get(V4L2_CID_CONTRAST).get<int32_t>() == -1 ||
ctrls.get(V4L2_CID_SATURATION).get<int32_t>() == -1) {
cerr << "Incorrect value for retrieved controls" << endl;
return TestFail;
}
uint8_t u8Min = u8.min().get<uint8_t>();
uint8_t u8Max = u8.max().get<uint8_t>();
Span<const uint8_t> u8Span = ctrls.get(VIVID_CID_U8_4D_ARRAY).get<Span<const uint8_t>>();
bool valid = std::all_of(u8Span.begin(), u8Span.end(),
[&](uint8_t v) { return v >= u8Min && v <= u8Max; });
if (!valid) {
cerr << "Incorrect value for retrieved array control"
<< endl;
return TestFail;
}
/* Test setting controls. */
ctrls.set(V4L2_CID_BRIGHTNESS, brightness.min());
ctrls.set(V4L2_CID_CONTRAST, contrast.max());
ctrls.set(V4L2_CID_SATURATION, saturation.min());
std::array<uint8_t, VIVID_CID_U8_ARRAY_SIZE> u8Values;
std::fill(u8Values.begin(), u8Values.end(), u8.min().get<uint8_t>());
ctrls.set(VIVID_CID_U8_4D_ARRAY, Span<const uint8_t>(u8Values));
int ret = capture_->setControls(&ctrls);
if (ret) {
cerr << "Failed to set controls" << endl;
return TestFail;
}
/* Test setting controls outside of range. */
ctrls.set(V4L2_CID_BRIGHTNESS, brightness.min().get<int32_t>() - 1);
ctrls.set(V4L2_CID_CONTRAST, contrast.max().get<int32_t>() + 1);
ctrls.set(V4L2_CID_SATURATION, saturation.min().get<int32_t>() + 1);
ret = capture_->setControls(&ctrls);
if (ret) {
cerr << "Failed to set controls (out of range)" << endl;
return TestFail;
}
if (ctrls.get(V4L2_CID_BRIGHTNESS) != brightness.min() ||
ctrls.get(V4L2_CID_CONTRAST) != contrast.max() ||
ctrls.get(V4L2_CID_SATURATION) != saturation.min().get<int32_t>() + 1) {
cerr << "Controls not updated when set" << endl;
return TestFail;
}
return TestPass;
}
};
TEST_REGISTER(V4L2ControlTest);
|
