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
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2021-2022, Ideas On Board
*
* RkISP1 Color Processing control
*/
#include "cproc.h"
#include <algorithm>
#include <cmath>
#include <libcamera/base/log.h>
#include <libcamera/control_ids.h>
/**
* \file cproc.h
*/
namespace libcamera {
namespace ipa::rkisp1::algorithms {
/**
* \class ColorProcessing
* \brief RkISP1 Color Processing control
*
* The ColorProcessing algorithm is responsible for applying brightness,
* contrast and saturation corrections. The values are directly provided
* through requests by the corresponding controls.
*/
LOG_DEFINE_CATEGORY(RkISP1CProc)
constexpr float kDefaultBrightness = 0.0f;
constexpr float kDefaultContrast = 1.0f;
constexpr float kDefaultSaturation = 1.0f;
static int convertBrightness(const float v)
{
return std::clamp<int>(std::lround(v * 128), -128, 127);
}
static int convertContrast(const float v)
{
return std::clamp<int>(std::lround(v * 128), 0, 255);
}
static int convertSaturation(const float v)
{
return std::clamp<int>(std::lround(v * 128), 0, 255);
}
/**
* \copydoc libcamera::ipa::Algorithm::init
*/
int ColorProcessing::init([[maybe_unused]] IPAContext &context,
[[maybe_unused]] const YamlObject &tuningData)
{
auto &cmap = context.ctrlMap;
cmap[&controls::Brightness] = ControlInfo(-1.0f, 0.993f, kDefaultBrightness);
cmap[&controls::Contrast] = ControlInfo(0.0f, 1.993f, kDefaultContrast);
cmap[&controls::Saturation] = ControlInfo(0.0f, 1.993f, kDefaultSaturation);
return 0;
}
/**
* \copydoc libcamera::ipa::Algorithm::configure
*/
int ColorProcessing::configure([[maybe_unused]] IPAContext &context,
[[maybe_unused]] const IPACameraSensorInfo &configInfo)
{
auto &cproc = context.activeState.cproc;
cproc.brightness = convertBrightness(kDefaultBrightness);
cproc.contrast = convertContrast(kDefaultContrast);
cproc.saturation = convertSaturation(kDefaultSaturation);
return 0;
}
/**
* \copydoc libcamera::ipa::Algorithm::queueRequest
*/
void ColorProcessing::queueRequest(IPAContext &context,
[[maybe_unused]] const uint32_t frame,
IPAFrameContext &frameContext,
const ControlList &controls)
{
auto &cproc = context.activeState.cproc;
bool update = false;
if (frame == 0)
update = true;
const auto &brightness = controls.get(controls::Brightness);
if (brightness) {
int value = convertBrightness(*brightness);
if (cproc.brightness != value) {
cproc.brightness = value;
update = true;
}
LOG(RkISP1CProc, Debug) << "Set brightness to " << value;
}
const auto &contrast = controls.get(controls::Contrast);
if (contrast) {
int value = convertContrast(*contrast);
if (cproc.contrast != value) {
cproc.contrast = value;
update = true;
}
LOG(RkISP1CProc, Debug) << "Set contrast to " << value;
}
const auto saturation = controls.get(controls::Saturation);
if (saturation) {
int value = convertSaturation(*saturation);
if (cproc.saturation != value) {
cproc.saturation = value;
update = true;
}
LOG(RkISP1CProc, Debug) << "Set saturation to " << value;
}
frameContext.cproc.brightness = cproc.brightness;
frameContext.cproc.contrast = cproc.contrast;
frameContext.cproc.saturation = cproc.saturation;
frameContext.cproc.update = update;
}
/**
* \copydoc libcamera::ipa::Algorithm::prepare
*/
void ColorProcessing::prepare([[maybe_unused]] IPAContext &context,
[[maybe_unused]] const uint32_t frame,
IPAFrameContext &frameContext,
rkisp1_params_cfg *params)
{
/* Check if the algorithm configuration has been updated. */
if (!frameContext.cproc.update)
return;
params->others.cproc_config.brightness = frameContext.cproc.brightness;
params->others.cproc_config.contrast = frameContext.cproc.contrast;
params->others.cproc_config.sat = frameContext.cproc.saturation;
params->module_en_update |= RKISP1_CIF_ISP_MODULE_CPROC;
params->module_ens |= RKISP1_CIF_ISP_MODULE_CPROC;
params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_CPROC;
}
REGISTER_IPA_ALGORITHM(ColorProcessing, "ColorProcessing")
} /* namespace ipa::rkisp1::algorithms */
} /* namespace libcamera */
|
