summaryrefslogtreecommitdiffstats
path: root/src/imports/multimedia/qdeclarativecameraimageprocessing.cpp
blob: 08616606377c1fcc1b2ffd80a99f06e20aa46d3b (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
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/

#include "qdeclarativecamera_p.h"
#include "qdeclarativecameraimageprocessing_p.h"

QT_BEGIN_NAMESPACE

/*!
    \qmltype CameraImageProcessing
    \instantiates QDeclarativeCameraImageProcessing
    \inqmlmodule QtMultimedia
    \brief An interface for camera capture related settings.
    \ingroup multimedia_qml
    \ingroup camera_qml

    CameraImageProcessing provides control over post-processing
    done by the camera middleware, including white balance adjustments,
    contrast, saturation, sharpening, and denoising

    It should not be constructed separately, instead the
    \c imageProcessing property of a \l Camera should be used.

    \qml

    Camera {
        id: camera

        imageProcessing {
            whiteBalanceMode: Camera.WhiteBalanceTungsten
            contrast: 0.66
            saturation: -0.5
        }
    }

    \endqml


*/
/*!
    \class QDeclarativeCameraImageProcessing
    \internal
    \brief The CameraCapture provides an interface for camera capture related settings
*/


QDeclarativeCameraImageProcessing::QDeclarativeCameraImageProcessing(QCamera *camera, QObject *parent) :
    QObject(parent)
{
    m_imageProcessing = camera->imageProcessing();

    connect(camera, QOverload<bool>::of(&QCamera::availabilityChanged),
            this, &QDeclarativeCameraImageProcessing::availableChanged);
    connect(camera, &QCamera::statusChanged, [this](QCamera::Status status) {
        if (status != QCamera::UnloadedStatus && status != QCamera::LoadedStatus
            && status != QCamera::ActiveStatus) {
            return;
        }

        emit supportedColorFiltersChanged();
        emit supportedWhiteBalanceModesChanged();
    });
}

QDeclarativeCameraImageProcessing::~QDeclarativeCameraImageProcessing()
{
}

/*!
    \qmlproperty enumeration QtMultimedia::CameraImageProcessing::whiteBalanceMode

    \table
    \header \li Value \li Description
    \row \li WhiteBalanceManual       \li Manual white balance. In this mode the manual white balance property value is used.
    \row \li WhiteBalanceAuto         \li Auto white balance mode.
    \row \li WhiteBalanceSunlight     \li Sunlight white balance mode.
    \row \li WhiteBalanceCloudy       \li Cloudy white balance mode.
    \row \li WhiteBalanceShade        \li Shade white balance mode.
    \row \li WhiteBalanceTungsten     \li Tungsten white balance mode.
    \row \li WhiteBalanceFluorescent  \li Fluorescent white balance mode.
    \row \li WhiteBalanceFlash        \li Flash white balance mode.
    \row \li WhiteBalanceSunset       \li Sunset white balance mode.
    \row \li WhiteBalanceVendor       \li Vendor defined white balance mode.
    \endtable

    \sa manualWhiteBalance
*/
QDeclarativeCameraImageProcessing::WhiteBalanceMode QDeclarativeCameraImageProcessing::whiteBalanceMode() const
{
    return WhiteBalanceMode(m_imageProcessing->whiteBalanceMode());
}

void QDeclarativeCameraImageProcessing::setWhiteBalanceMode(QDeclarativeCameraImageProcessing::WhiteBalanceMode mode) const
{
    if (whiteBalanceMode() != mode) {
        m_imageProcessing->setWhiteBalanceMode(QCameraImageProcessing::WhiteBalanceMode(mode));
        emit whiteBalanceModeChanged(whiteBalanceMode());
    }
}

/*!
    \qmlproperty qreal QtMultimedia::CameraImageProcessing::manualWhiteBalance

    The color temperature used when in manual white balance mode (WhiteBalanceManual).
    The units are Kelvin.

    \sa whiteBalanceMode
*/
qreal QDeclarativeCameraImageProcessing::manualWhiteBalance() const
{
    return m_imageProcessing->manualWhiteBalance();
}

void QDeclarativeCameraImageProcessing::setManualWhiteBalance(qreal colorTemp) const
{
    if (manualWhiteBalance() != colorTemp) {
        m_imageProcessing->setManualWhiteBalance(colorTemp);
        emit manualWhiteBalanceChanged(manualWhiteBalance());
    }
}

/*!
    \qmlproperty qreal QtMultimedia::CameraImageProcessing::brightness

    Image brightness adjustment.
    Valid brightness adjustment values range between -1.0 and 1.0, with a default of 0.

    \since 5.7
*/
qreal QDeclarativeCameraImageProcessing::brightness() const
{
    return m_imageProcessing->brightness();
}

void QDeclarativeCameraImageProcessing::setBrightness(qreal value)
{
    if (value != brightness()) {
        m_imageProcessing->setBrightness(value);
        emit brightnessChanged(brightness());
    }
}

/*!
    \qmlproperty qreal QtMultimedia::CameraImageProcessing::contrast

    Image contrast adjustment.
    Valid contrast adjustment values range between -1.0 and 1.0, with a default of 0.
*/
qreal QDeclarativeCameraImageProcessing::contrast() const
{
    return m_imageProcessing->contrast();
}

void QDeclarativeCameraImageProcessing::setContrast(qreal value)
{
    if (value != contrast()) {
        m_imageProcessing->setContrast(value);
        emit contrastChanged(contrast());
    }
}

/*!
    \qmlproperty qreal QtMultimedia::CameraImageProcessing::saturation

    Image saturation adjustment.
    Valid saturation adjustment values range between -1.0 and 1.0, the default is 0.
*/
qreal QDeclarativeCameraImageProcessing::saturation() const
{
    return m_imageProcessing->saturation();
}

void QDeclarativeCameraImageProcessing::setSaturation(qreal value)
{
    if (value != saturation()) {
        m_imageProcessing->setSaturation(value);
        emit saturationChanged(saturation());
    }
}

/*!
    \qmlproperty qreal QtMultimedia::CameraImageProcessing::sharpeningLevel

    Adjustment of sharpening level applied to image.

    Valid sharpening level values range between -1.0 for for sharpening disabled,
    0 for default sharpening level and 1.0 for maximum sharpening applied.
*/
qreal QDeclarativeCameraImageProcessing::sharpeningLevel() const
{
    return m_imageProcessing->sharpeningLevel();
}

void QDeclarativeCameraImageProcessing::setSharpeningLevel(qreal value)
{
    if (value != sharpeningLevel()) {
        m_imageProcessing->setSharpeningLevel(value);
        emit sharpeningLevelChanged(sharpeningLevel());
    }
}

/*!
    \qmlproperty qreal QtMultimedia::CameraImageProcessing::denoisingLevel

    Adjustment of denoising applied to image.

    Valid denoising level values range between -1.0 for for denoising disabled,
    0 for default denoising level and 1.0 for maximum denoising applied.
*/
qreal QDeclarativeCameraImageProcessing::denoisingLevel() const
{
    return m_imageProcessing->denoisingLevel();
}

void QDeclarativeCameraImageProcessing::setDenoisingLevel(qreal value)
{
    if (value != denoisingLevel()) {
        m_imageProcessing->setDenoisingLevel(value);
        emit denoisingLevelChanged(denoisingLevel());
    }
}

/*!
    \qmlproperty enumeration QtMultimedia::CameraImageProcessing::colorFilter

    This property holds which color filter if any will be applied to image data captured by the camera.

    It can be one of:

    \table
    \row \li CameraImageProcessing.ColorFilterNone       \li No filter is applied to images.
    \row \li CameraImageProcessing.ColorFilterGrayscale  \li A grayscale filter.
    \row \li CameraImageProcessing.ColorFilterNegative   \li A negative filter.
    \row \li CameraImageProcessing.ColorFilterSolarize   \li A solarize filter.
    \row \li CameraImageProcessing.ColorFilterSepia      \li A sepia filter.
    \row \li CameraImageProcessing.ColorFilterPosterize  \li A posterize filter.
    \row \li CameraImageProcessing.ColorFilterWhiteboard \li A whiteboard filter.
    \row \li CameraImageProcessing.ColorFilterBlackboard \li A blackboard filter.
    \row \li CameraImageProcessing.ColorFilterAqua       \li An aqua filter.
    \row \li CameraImageProcessing.ColorFilterVendor     \li The base value for vendor defined filters.
    \endtable

    \since 5.5
*/

QDeclarativeCameraImageProcessing::ColorFilter QDeclarativeCameraImageProcessing::colorFilter() const
{
    return ColorFilter(m_imageProcessing->colorFilter());
}

/*!
    \qmlproperty bool QtMultimedia::CameraImageProcessing::isAvailable

    This property holds if image processing related settings are supported by this camera.

    \since 5.11
*/
bool QDeclarativeCameraImageProcessing::isAvailable() const
{
    return m_imageProcessing->isAvailable();
}

/*!
    \qmlproperty list<ColorFilter> QtMultimedia::CameraImageProcessing::supportedColorFilters

    This property holds the supported color filters by this camera.

    \since 5.11
*/
QVariantList QDeclarativeCameraImageProcessing::supportedColorFilters() const
{
    QVariantList supportedFilters;

    for (int i = int(ColorFilterNone); i <= int(ColorFilterVendor); ++i) {
        if (m_imageProcessing->isColorFilterSupported((QCameraImageProcessing::ColorFilter) i))
            supportedFilters.append(i);
    }

    return supportedFilters;
}

/*!
    \qmlproperty list<WhiteBalanceMode> QtMultimedia::CameraImageProcessing::supportedWhiteBalanceModes

    This property holds the supported white balance modes by this camera.

    \since 5.11
*/
QVariantList QDeclarativeCameraImageProcessing::supportedWhiteBalanceModes() const
{
    QVariantList supportedModes;

    for (int i = int(WhiteBalanceAuto); i <= int(WhiteBalanceVendor); i++) {
        if (m_imageProcessing->isWhiteBalanceModeSupported(QCameraImageProcessing::WhiteBalanceMode(i)))
            supportedModes.append(i);
    }

    return supportedModes;
}

void QDeclarativeCameraImageProcessing::setColorFilter(ColorFilter filter)
{
    if (this->colorFilter() != filter) {
        m_imageProcessing->setColorFilter(QCameraImageProcessing::ColorFilter(filter));
        emit colorFilterChanged();
    }
}

/*!
    \qmlsignal QtMultimedia::Camera::whiteBalanceModeChanged()
    This signal is emitted when the \c whiteBalanceMode property is changed.

    The corresponding handler is \c onWhiteBalanceModeChanged.
*/

/*!
    \qmlsignal QtMultimedia::Camera::manualWhiteBalanceChanged()
    This signal is emitted when the \c manualWhiteBalance property is changed.

    The corresponding handler is \c onManualWhiteBalanceChanged.
*/

QT_END_NAMESPACE

#include "moc_qdeclarativecameraimageprocessing_p.cpp"