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
212
213
|
/* This file is part of the KDE project
SPDX-FileCopyrightText: 2024 Xaver Hugl <xaver.hugl@gmail.com>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include "kwinbrightness.h"
#include <KLocalizedString>
#include <KScreen/ConfigMonitor>
#include <KScreen/EDID>
#include <KScreen/GetConfigOperation>
KWinDisplayDetector::KWinDisplayDetector(QObject *parent)
: DisplayBrightnessDetector(parent)
{
m_setConfigTimer.setInterval(0);
m_setConfigTimer.setSingleShot(true);
connect(&m_setConfigTimer, &QTimer::timeout, this, &KWinDisplayDetector::setConfig);
}
KWinDisplayDetector::~KWinDisplayDetector()
{
}
void KWinDisplayDetector::detect()
{
const auto op = new KScreen::GetConfigOperation(KScreen::GetConfigOperation::Option::NoOptions, this);
connect(op, &KScreen::GetConfigOperation::finished, this, [this](KScreen::ConfigOperation *configOp) {
if (configOp->hasError()) {
Q_EMIT detectionFinished(false);
return;
}
m_config = static_cast<KScreen::GetConfigOperation *>(configOp)->config();
KScreen::ConfigMonitor::instance()->addConfig(m_config);
connect(KScreen::ConfigMonitor::instance(), &KScreen::ConfigMonitor::configurationChanged, this, &KWinDisplayDetector::checkOutputs);
checkOutputs();
Q_EMIT detectionFinished(true);
});
}
QList<DisplayBrightness *> KWinDisplayDetector::displays() const
{
return m_displayList;
}
void KWinDisplayDetector::checkOutputs()
{
const KScreen::OutputList outputs = m_config->outputs();
bool changed = false;
// remove all actually removed outputs
changed |= std::erase_if(m_displays, [&outputs](const auto &pair) {
return std::ranges::none_of(outputs, [output = pair.first](const auto &other) {
return output == other.get();
});
});
// remove all that can't do brightness control (anymore)
changed |= std::erase_if(m_displays, [](const auto &pair) {
return !(pair.first->capabilities() & KScreen::Output::Capability::BrightnessControl) || !pair.first->isEnabled();
});
for (const auto &output : outputs) {
if (!(output->capabilities() & KScreen::Output::Capability::BrightnessControl) || !output->isEnabled()) {
continue;
}
auto &brightness = m_displays[output.get()];
if (!brightness) {
brightness = std::make_unique<KWinDisplayBrightness>(output, this);
changed = true;
}
}
if (changed) {
QMap<uint32_t, DisplayBrightness *> newList; // ordered by priority
for (const auto &[output, brightness] : m_displays) {
newList.insert(output->priority(), brightness.get());
}
m_displayList = newList.values();
Q_EMIT displaysChanged();
}
}
void KWinDisplayDetector::scheduleSetConfig()
{
if (m_setConfigOp) {
m_setConfigOutOfDate = true;
}
m_setConfigTimer.start();
}
void KWinDisplayDetector::setConfig()
{
if (m_setConfigOp) {
return;
}
m_setConfigOutOfDate = false;
for (const auto &[output, display] : m_displays) {
display->applyPendingBrightness();
}
m_setConfigOp = new KScreen::SetConfigOperation(m_config);
connect(m_setConfigOp, &KScreen::SetConfigOperation::finished, this, &KWinDisplayDetector::setConfigDone);
}
void KWinDisplayDetector::setConfigDone()
{
m_setConfigOp = nullptr;
if (m_setConfigOutOfDate) {
setConfig();
} else {
for (const auto &[output, display] : m_displays) {
display->setConfigOperationDone();
}
}
}
KWinDisplayBrightness::KWinDisplayBrightness(const KScreen::OutputPtr &output, KWinDisplayDetector *detector)
: m_output(output)
, m_detector(detector)
, m_desiredBrightness(m_output->brightness())
, m_desiredDimming(m_output->dimming())
{
connect(m_output.get(), &KScreen::Output::brightnessChanged, this, &KWinDisplayBrightness::handleBrightnessChanged);
}
QString KWinDisplayBrightness::id() const
{
return m_output->name();
}
QString KWinDisplayBrightness::label() const
{
if (isInternal()) {
// FIXME: use KWin's output name once it returns a nicer name for internal outputs
return i18nc("Display label", "Built-in Screen");
}
if (KScreen::Edid *edid = m_output->edid()) {
if (!edid->vendor().isEmpty() || !edid->name().isEmpty()) {
return i18nc("Display label: vendor + product name", "%1 %2", edid->vendor(), edid->name()).simplified();
}
}
return m_output->name();
}
int KWinDisplayBrightness::knownSafeMinBrightness() const
{
return 0;
}
int KWinDisplayBrightness::maxBrightness() const
{
return 10'000;
}
int KWinDisplayBrightness::brightness() const
{
return std::round(m_output->brightness() * 10'000);
}
void KWinDisplayBrightness::setBrightness(int brightness, bool allowAnimations)
{
m_desiredBrightness = brightness / 10'000.0;
m_detector->scheduleSetConfig();
}
bool KWinDisplayBrightness::isInternal() const
{
return m_output->type() == KScreen::Output::Panel;
}
std::optional<QByteArray> KWinDisplayBrightness::edidData() const
{
KScreen::Edid *edid = m_output->edid();
return edid ? std::make_optional(edid->rawData()) : std::nullopt;
}
void KWinDisplayBrightness::handleBrightnessChanged()
{
if (m_inhibitChangeSignal) {
return;
}
m_desiredBrightness = m_output->brightness();
Q_EMIT externalBrightnessChangeObserved(this, std::round(m_output->brightness() * 10'000));
}
void KWinDisplayBrightness::applyPendingBrightness()
{
m_inhibitChangeSignal = true;
// this will trigger handleBrightnessChanged
m_output->setBrightness(m_desiredBrightness);
m_output->setDimming(m_desiredDimming);
}
void KWinDisplayBrightness::setConfigOperationDone()
{
m_inhibitChangeSignal = false;
if (m_desiredBrightness != m_output->brightness()) {
handleBrightnessChanged();
}
}
bool KWinDisplayBrightness::supportsDimmingMultiplier() const
{
return true;
}
void KWinDisplayBrightness::setDimmingMultiplier(double multiplier)
{
if (m_desiredDimming == multiplier) {
return;
}
m_desiredDimming = multiplier;
m_detector->scheduleSetConfig();
}
#include "moc_kwinbrightness.cpp"
|
