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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2020, Sebastian Fricke
*
* bayer_format.cpp - BayerFormat class tests
*/
#include <iostream>
#include <libcamera/transform.h>
#include "libcamera/internal/bayer_format.h"
#include "test.h"
using namespace std;
using namespace libcamera;
class BayerFormatTest : public Test
{
protected:
int run()
{
/* An empty Bayer format has to be invalid. */
BayerFormat bayerFmt;
if (bayerFmt.isValid()) {
cerr << "An empty BayerFormat has to be invalid."
<< endl;
return TestFail;
}
/* A correct Bayer format has to be valid. */
bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None);
if (!bayerFmt.isValid()) {
cerr << "A correct BayerFormat has to be valid."
<< endl;
return TestFail;
}
/*
* Two bayer formats created with the same order and bit depth
* have to be equal.
*/
bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None);
BayerFormat bayerFmtExpect = BayerFormat(BayerFormat::BGGR, 8,
BayerFormat::Packing::None);
if (bayerFmt != bayerFmtExpect) {
cerr << "Comparison of identical formats failed."
<< endl;
return TestFail;
}
/*
* Two Bayer formats created with the same order but with a
* different bitDepth are not equal.
*/
bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None);
bayerFmtExpect = BayerFormat(BayerFormat::BGGR, 12,
BayerFormat::Packing::None);
if (bayerFmt == bayerFmtExpect) {
cerr << "Comparison of different formats failed."
<< endl;
return TestFail;
}
/*
* Create a Bayer format with a V4L2PixelFormat and check if we
* get the same format after converting back to the V4L2 Format.
*/
V4L2PixelFormat v4l2FmtExpect = V4L2PixelFormat(
V4L2_PIX_FMT_SBGGR8);
bayerFmt = BayerFormat::fromV4L2PixelFormat(v4l2FmtExpect);
V4L2PixelFormat v4l2Fmt = bayerFmt.toV4L2PixelFormat();
if (v4l2Fmt != v4l2FmtExpect) {
cerr << "Expected: '" << v4l2FmtExpect
<< "' got: '" << v4l2Fmt << "'" << endl;
return TestFail;
}
/*
* Use an empty Bayer format and verify that no matching
* V4L2PixelFormat is found.
*/
v4l2FmtExpect = V4L2PixelFormat();
bayerFmt = BayerFormat();
v4l2Fmt = bayerFmt.toV4L2PixelFormat();
if (v4l2Fmt != v4l2FmtExpect) {
cerr << "Expected: empty V4L2PixelFormat got: '"
<< v4l2Fmt << "'" << endl;
return TestFail;
}
/*
* Check if we get the expected Bayer format BGGR8
* when we convert the V4L2PixelFormat (V4L2_PIX_FMT_SBGGR8)
* to a Bayer format.
*/
bayerFmtExpect = BayerFormat(BayerFormat::BGGR, 8,
BayerFormat::Packing::None);
v4l2Fmt = V4L2PixelFormat(V4L2_PIX_FMT_SBGGR8);
bayerFmt = BayerFormat::fromV4L2PixelFormat(v4l2Fmt);
if (bayerFmt != bayerFmtExpect) {
cerr << "Expected BayerFormat '"
<< bayerFmtExpect << "', got: '"
<< bayerFmt << "'" << endl;
return TestFail;
}
/*
* Confirm that a V4L2PixelFormat that is not found in
* the conversion table, doesn't yield a Bayer format.
*/
V4L2PixelFormat v4l2FmtUnknown = V4L2PixelFormat(
V4L2_PIX_FMT_BGRA444);
bayerFmt = BayerFormat::fromV4L2PixelFormat(v4l2FmtUnknown);
if (bayerFmt.isValid()) {
cerr << "Expected empty BayerFormat got: '"
<< bayerFmt << "'" << endl;
return TestFail;
}
/*
* Test if a valid Bayer format can be converted to a
* string representation.
*/
bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None);
if (bayerFmt.toString() != "BGGR-8") {
cerr << "String representation != 'BGGR-8' (got: '"
<< bayerFmt.toString() << "' ) " << endl;
return TestFail;
}
/*
* Determine if an empty Bayer format results in no
* string representation.
*/
bayerFmt = BayerFormat();
if (bayerFmt.toString() != "INVALID") {
cerr << "String representation != 'INVALID' (got: '"
<< bayerFmt.toString() << "' ) " << endl;
return TestFail;
}
/*
* Perform a horizontal Flip and make sure that the
* order is adjusted accordingly.
*/
bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None);
bayerFmtExpect = BayerFormat(BayerFormat::GBRG, 8,
BayerFormat::Packing::None);
BayerFormat hFlipFmt = bayerFmt.transform(Transform::HFlip);
if (hFlipFmt != bayerFmtExpect) {
cerr << "Horizontal flip of 'BGGR-8' should result in '"
<< bayerFmtExpect << "', got: '"
<< hFlipFmt << "'" << endl;
return TestFail;
}
/*
* Perform a vertical Flip and make sure that
* the order is adjusted accordingly.
*/
bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None);
bayerFmtExpect = BayerFormat(BayerFormat::GRBG, 8,
BayerFormat::Packing::None);
BayerFormat vFlipFmt = bayerFmt.transform(Transform::VFlip);
if (vFlipFmt != bayerFmtExpect) {
cerr << "Vertical flip of 'BGGR-8' should result in '"
<< bayerFmtExpect << "', got: '"
<< vFlipFmt << "'" << endl;
return TestFail;
}
/*
* Perform a transposition on a pixel order with both green
* pixels on the bottom left to top right diagonal and make
* sure, that it doesn't change.
*/
bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None);
BayerFormat transposeFmt = bayerFmt.transform(
Transform::Transpose);
if (transposeFmt != bayerFmt) {
cerr << "Transpose with both green pixels on the "
<< "antidiagonal should not change the order "
<< "(got '" << transposeFmt << "')"
<< endl;
return TestFail;
}
/*
* Perform a transposition on an pixel order with red and blue
* on the bottom left to top right diagonal and make sure
* that their positions are switched.
*/
bayerFmt = BayerFormat(BayerFormat::GBRG, 8, BayerFormat::Packing::None);
bayerFmtExpect = BayerFormat(BayerFormat::GRBG, 8,
BayerFormat::Packing::None);
transposeFmt = bayerFmt.transform(Transform::Transpose);
if (transposeFmt != bayerFmtExpect) {
cerr << "Transpose with the red & blue pixels on the "
<< "antidiagonal should switch their position "
<< "(got '" << transposeFmt << "')"
<< endl;
return TestFail;
}
return TestPass;
}
};
TEST_REGISTER(BayerFormatTest)
|
