diff options
Diffstat (limited to 'src/plugins/avfoundation/camera/avfcamerazoomcontrol.mm')
| -rw-r--r-- | src/plugins/avfoundation/camera/avfcamerazoomcontrol.mm | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/src/plugins/avfoundation/camera/avfcamerazoomcontrol.mm b/src/plugins/avfoundation/camera/avfcamerazoomcontrol.mm deleted file mode 100644 index 119a1fc0a..000000000 --- a/src/plugins/avfoundation/camera/avfcamerazoomcontrol.mm +++ /dev/null @@ -1,179 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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. -** -** 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.LGPL3 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-3.0.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 (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "avfcamerazoomcontrol.h" -#include "avfcameraservice.h" -#include "avfcamerautility.h" -#include "avfcamerasession.h" -#include "avfcameracontrol.h" -#include "avfcameradebug.h" - -#include <QtCore/qglobal.h> -#include <QtCore/qdebug.h> - -QT_BEGIN_NAMESPACE - -AVFCameraZoomControl::AVFCameraZoomControl(AVFCameraService *service) - : m_session(service->session()), - m_maxZoomFactor(1.), - m_zoomFactor(1.), - m_requestedZoomFactor(1.) -{ - Q_ASSERT(m_session); - connect(m_session, SIGNAL(stateChanged(QCamera::State)), - SLOT(cameraStateChanged())); -} - -qreal AVFCameraZoomControl::maximumOpticalZoom() const -{ - // Not supported. - return 1.; -} - -qreal AVFCameraZoomControl::maximumDigitalZoom() const -{ - return m_maxZoomFactor; -} - -qreal AVFCameraZoomControl::requestedOpticalZoom() const -{ - // Not supported. - return 1; -} - -qreal AVFCameraZoomControl::requestedDigitalZoom() const -{ - return m_requestedZoomFactor; -} - -qreal AVFCameraZoomControl::currentOpticalZoom() const -{ - // Not supported. - return 1.; -} - -qreal AVFCameraZoomControl::currentDigitalZoom() const -{ - return m_zoomFactor; -} - -void AVFCameraZoomControl::zoomTo(qreal optical, qreal digital) -{ - Q_UNUSED(optical); - Q_UNUSED(digital); - - if (qFuzzyCompare(CGFloat(digital), m_requestedZoomFactor)) - return; - - m_requestedZoomFactor = digital; - Q_EMIT requestedDigitalZoomChanged(digital); - - zoomToRequestedDigital(); -} - -void AVFCameraZoomControl::cameraStateChanged() -{ - const QCamera::State state = m_session->state(); - if (state != QCamera::ActiveState) { - if (state == QCamera::UnloadedState && m_maxZoomFactor > 1.) { - m_maxZoomFactor = 1.; - Q_EMIT maximumDigitalZoomChanged(1.); - } - return; - } - - AVCaptureDevice *captureDevice = m_session->videoCaptureDevice(); - if (!captureDevice || !captureDevice.activeFormat) { - qDebugCamera() << Q_FUNC_INFO << "camera state is active, but" - << "video capture device and/or active format is nil"; - return; - } - - if (captureDevice.activeFormat.videoMaxZoomFactor > 1.) { - if (!qFuzzyCompare(m_maxZoomFactor, captureDevice.activeFormat.videoMaxZoomFactor)) { - m_maxZoomFactor = captureDevice.activeFormat.videoMaxZoomFactor; - Q_EMIT maximumDigitalZoomChanged(m_maxZoomFactor); - } - } else if (!qFuzzyCompare(m_maxZoomFactor, CGFloat(1.))) { - m_maxZoomFactor = 1.; - - Q_EMIT maximumDigitalZoomChanged(1.); - } - - zoomToRequestedDigital(); -} - -void AVFCameraZoomControl::zoomToRequestedDigital() -{ - AVCaptureDevice *captureDevice = m_session->videoCaptureDevice(); - if (!captureDevice || !captureDevice.activeFormat) - return; - - if (qFuzzyCompare(captureDevice.activeFormat.videoMaxZoomFactor, CGFloat(1.))) - return; - - const CGFloat clampedZoom = qBound(CGFloat(1.), m_requestedZoomFactor, - captureDevice.activeFormat.videoMaxZoomFactor); - const CGFloat deviceZoom = captureDevice.videoZoomFactor; - if (qFuzzyCompare(clampedZoom, deviceZoom)) { - // Nothing to set, but check if a signal must be emitted: - if (!qFuzzyCompare(m_zoomFactor, deviceZoom)) { - m_zoomFactor = deviceZoom; - Q_EMIT currentDigitalZoomChanged(deviceZoom); - } - return; - } - - const AVFConfigurationLock lock(captureDevice); - if (!lock) { - qDebugCamera() << Q_FUNC_INFO << "failed to lock for configuration"; - return; - } - - captureDevice.videoZoomFactor = clampedZoom; - - if (!qFuzzyCompare(clampedZoom, m_zoomFactor)) { - m_zoomFactor = clampedZoom; - Q_EMIT currentDigitalZoomChanged(clampedZoom); - } -} - -QT_END_NAMESPACE - -#include "moc_avfcamerazoomcontrol.cpp" |