blob: 1ea877672f362a4708fd444fc7f6245ecec9ad32 (
plain)
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
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwinrtcameraflashcontrol.h"
#include "qwinrtcameracontrol.h"
#include <QtCore/QTimer>
#include <QtCore/qfunctions_winrt.h>
#include <QtCore/private/qeventdispatcher_winrt_p.h>
#include <windows.media.devices.h>
#include <wrl.h>
#include <functional>
using namespace Microsoft::WRL;
using namespace ABI::Windows::Media::Devices;
QT_BEGIN_NAMESPACE
class QWinRTCameraFlashControlPrivate
{
public:
ComPtr<IFlashControl> flashControl;
QList<QCameraExposure::FlashModes> supportedModes;
QCameraExposure::FlashModes currentModes;
bool initialized;
};
QWinRTCameraFlashControl::QWinRTCameraFlashControl(QWinRTCameraControl *parent)
: QCameraFlashControl(parent), d_ptr(new QWinRTCameraFlashControlPrivate)
{
qCDebug(lcMMCamera) << __FUNCTION__ << parent;
Q_D(QWinRTCameraFlashControl);
d->initialized = false;
d->currentModes = QCameraExposure::FlashOff;
}
void QWinRTCameraFlashControl::initialize(Microsoft::WRL::ComPtr<IAdvancedVideoCaptureDeviceController2> &controller)
{
qCDebug(lcMMCamera) << __FUNCTION__;
Q_D(QWinRTCameraFlashControl);
d->initialized = false;
d->supportedModes.clear();
HRESULT hr;
hr = QEventDispatcherWinRT::runOnXamlThread([d, controller]() {
HRESULT hr;
hr = controller->get_FlashControl(&d->flashControl);
RETURN_HR_IF_FAILED("Could not access flash control.");
boolean oldAuto;
boolean oldEnabled;
// IFlashControl::get_Supported() is only valid for additional
// controls (RedEye, etc.) so we have to manually try to set
// and reset flash
if (SUCCEEDED(d->flashControl->get_Auto(&oldAuto))) {
hr = d->flashControl->put_Auto(!oldAuto);
if (SUCCEEDED(hr)) {
d->flashControl->put_Auto(oldAuto);
d->supportedModes.append(QCameraExposure::FlashAuto);
}
}
if (SUCCEEDED(d->flashControl->get_Enabled(&oldEnabled))) {
hr = d->flashControl->put_Enabled(!oldEnabled);
if (SUCCEEDED(hr)) {
d->flashControl->put_Enabled(oldEnabled);
d->supportedModes.append(QCameraExposure::FlashOff);
d->supportedModes.append(QCameraExposure::FlashOn);
}
}
boolean val;
hr = d->flashControl->get_Supported(&val);
if (SUCCEEDED(hr) && val) {
hr = d->flashControl->get_RedEyeReductionSupported(&val);
if (SUCCEEDED(hr) && val)
d->supportedModes.append(QCameraExposure::FlashRedEyeReduction);
// ### There is no Qt API to actually set the power values.
// However query if the camera could theoretically do it
hr = d->flashControl->get_PowerSupported(&val);
if (SUCCEEDED(hr) && val)
d->supportedModes.append(QCameraExposure::FlashManual);
}
return S_OK;
});
Q_ASSERT_SUCCEEDED(hr);
d->initialized = true;
setFlashMode(d->currentModes);
}
QCameraExposure::FlashModes QWinRTCameraFlashControl::flashMode() const
{
Q_D(const QWinRTCameraFlashControl);
return d->currentModes;
}
void QWinRTCameraFlashControl::setFlashMode(QCameraExposure::FlashModes mode)
{
qCDebug(lcMMCamera) << __FUNCTION__ << mode;
Q_D(QWinRTCameraFlashControl);
if (!d->initialized) {
d->currentModes = mode;
return;
}
if (!isFlashModeSupported(mode))
return;
QEventDispatcherWinRT::runOnXamlThread([d, mode]() {
HRESULT hr;
if (mode.testFlag(QCameraExposure::FlashAuto)) {
hr = d->flashControl->put_Enabled(true);
RETURN_OK_IF_FAILED("Could not set flash mode on.");
hr = d->flashControl->put_Auto(true);
RETURN_OK_IF_FAILED("Could not set flash mode auto.");
d->currentModes = QCameraExposure::FlashAuto;
} else if (mode.testFlag(QCameraExposure::FlashOn)) {
hr = d->flashControl->put_Enabled(true);
RETURN_OK_IF_FAILED("Could not set flash mode on.");
hr = d->flashControl->put_Auto(false);
RETURN_OK_IF_FAILED("Could not disable flash auto mode.");
d->currentModes = QCameraExposure::FlashOn;
} else if (mode.testFlag(QCameraExposure::FlashRedEyeReduction)) {
hr = d->flashControl->put_Enabled(true);
RETURN_OK_IF_FAILED("Could not set flash mode on.");
hr = d->flashControl->put_RedEyeReduction(true);
RETURN_OK_IF_FAILED("Could not set flash mode red eye reduction.");
d->currentModes = QCameraExposure::FlashRedEyeReduction;
} else {
hr = d->flashControl->put_Enabled(false);
RETURN_OK_IF_FAILED("Could not set flash mode off.");
d->currentModes = QCameraExposure::FlashOff;
}
return S_OK;
});
}
bool QWinRTCameraFlashControl::isFlashModeSupported(QCameraExposure::FlashModes mode) const
{
Q_D(const QWinRTCameraFlashControl);
qCDebug(lcMMCamera) << __FUNCTION__ << mode;
return d->initialized ? d->supportedModes.contains(mode) : false;
}
bool QWinRTCameraFlashControl::isFlashReady() const
{
qCDebug(lcMMCamera) << __FUNCTION__;
// No native API to query state
return true;
}
QT_END_NAMESPACE
|
