diff options
Diffstat (limited to 'src/plugins/avfoundation/camera/avfcameraflashcontrol.mm')
| -rw-r--r-- | src/plugins/avfoundation/camera/avfcameraflashcontrol.mm | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/src/plugins/avfoundation/camera/avfcameraflashcontrol.mm b/src/plugins/avfoundation/camera/avfcameraflashcontrol.mm deleted file mode 100644 index 42303ce17..000000000 --- a/src/plugins/avfoundation/camera/avfcameraflashcontrol.mm +++ /dev/null @@ -1,233 +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 "avfcameraflashcontrol.h" -#include "avfcamerautility.h" -#include "avfcamerasession.h" -#include "avfcameraservice.h" -#include "avfcameradebug.h" - -#include <QtCore/qdebug.h> - -#include <AVFoundation/AVFoundation.h> - - -AVFCameraFlashControl::AVFCameraFlashControl(AVFCameraService *service) - : m_service(service) - , m_session(nullptr) - , m_supportedModes(QCameraExposure::FlashOff) - , m_flashMode(QCameraExposure::FlashOff) -{ - Q_ASSERT(service); - m_session = m_service->session(); - Q_ASSERT(m_session); - - connect(m_session, SIGNAL(stateChanged(QCamera::State)), SLOT(cameraStateChanged(QCamera::State))); -} - -QCameraExposure::FlashModes AVFCameraFlashControl::flashMode() const -{ - return m_flashMode; -} - -void AVFCameraFlashControl::setFlashMode(QCameraExposure::FlashModes mode) -{ - if (m_flashMode == mode) - return; - - if (m_session->state() == QCamera::ActiveState && !isFlashModeSupported(mode)) { - qDebugCamera() << Q_FUNC_INFO << "unsupported mode" << mode; - return; - } - - m_flashMode = mode; - - if (m_session->state() != QCamera::ActiveState) - return; - - applyFlashSettings(); -} - -bool AVFCameraFlashControl::isFlashModeSupported(QCameraExposure::FlashModes mode) const -{ - // From what QCameraExposure has, we can support only these: - // FlashAuto = 0x1, - // FlashOff = 0x2, - // FlashOn = 0x4, - // AVCaptureDevice has these flash modes: - // AVCaptureFlashModeAuto - // AVCaptureFlashModeOff - // AVCaptureFlashModeOn - // QCameraExposure also has: - // FlashTorch = 0x20, --> "Constant light source." - // FlashVideoLight = 0x40. --> "Constant light source." - // AVCaptureDevice: - // AVCaptureTorchModeOff (no mapping) - // AVCaptureTorchModeOn --> FlashVideoLight - // AVCaptureTorchModeAuto (no mapping) - - return m_supportedModes & mode; -} - -bool AVFCameraFlashControl::isFlashReady() const -{ - if (m_session->state() != QCamera::ActiveState) - return false; - - AVCaptureDevice *captureDevice = m_session->videoCaptureDevice(); - if (!captureDevice) - return false; - - if (!captureDevice.hasFlash && !captureDevice.hasTorch) - return false; - - if (!isFlashModeSupported(m_flashMode)) - return false; - -#ifdef Q_OS_IOS - // AVCaptureDevice's docs: - // "The flash may become unavailable if, for example, - // the device overheats and needs to cool off." - if (m_flashMode != QCameraExposure::FlashVideoLight) - return [captureDevice isFlashAvailable]; - - return [captureDevice isTorchAvailable]; -#endif - - return true; -} - -void AVFCameraFlashControl::cameraStateChanged(QCamera::State newState) -{ - if (newState == QCamera::UnloadedState) { - m_supportedModes = QCameraExposure::FlashOff; - Q_EMIT flashReady(false); - } else if (newState == QCamera::ActiveState) { - m_supportedModes = QCameraExposure::FlashOff; - AVCaptureDevice *captureDevice = m_session->videoCaptureDevice(); - if (!captureDevice) { - qDebugCamera() << Q_FUNC_INFO << "no capture device in 'Active' state"; - Q_EMIT flashReady(false); - return; - } - - if (captureDevice.hasFlash) { - if ([captureDevice isFlashModeSupported:AVCaptureFlashModeOn]) - m_supportedModes |= QCameraExposure::FlashOn; - if ([captureDevice isFlashModeSupported:AVCaptureFlashModeAuto]) - m_supportedModes |= QCameraExposure::FlashAuto; - } - - if (captureDevice.hasTorch && [captureDevice isTorchModeSupported:AVCaptureTorchModeOn]) - m_supportedModes |= QCameraExposure::FlashVideoLight; - - Q_EMIT flashReady(applyFlashSettings()); - } -} - -bool AVFCameraFlashControl::applyFlashSettings() -{ - Q_ASSERT(m_session->requestedState() == QCamera::ActiveState); - - AVCaptureDevice *captureDevice = m_session->videoCaptureDevice(); - if (!captureDevice) { - qDebugCamera() << Q_FUNC_INFO << "no capture device found"; - return false; - } - - if (!isFlashModeSupported(m_flashMode)) { - qDebugCamera() << Q_FUNC_INFO << "unsupported mode" << m_flashMode; - return false; - } - - if (!captureDevice.hasFlash && !captureDevice.hasTorch) { - // FlashOff is the only mode we support. - // Return false - flash is not ready. - return false; - } - - const AVFConfigurationLock lock(captureDevice); - - if (m_flashMode != QCameraExposure::FlashVideoLight) { - if (captureDevice.torchMode != AVCaptureTorchModeOff) { -#ifdef Q_OS_IOS - if (![captureDevice isTorchAvailable]) { - qDebugCamera() << Q_FUNC_INFO << "torch is not available at the moment"; - return false; - } -#endif - captureDevice.torchMode = AVCaptureTorchModeOff; - } -#ifdef Q_OS_IOS - if (![captureDevice isFlashAvailable]) { - // We'd like to switch flash (into some mode), but it's not available: - qDebugCamera() << Q_FUNC_INFO << "flash is not available at the moment"; - return false; - } -#endif - } else { - if (captureDevice.flashMode != AVCaptureFlashModeOff) { -#ifdef Q_OS_IOS - if (![captureDevice isFlashAvailable]) { - qDebugCamera() << Q_FUNC_INFO << "flash is not available at the moment"; - return false; - } -#endif - captureDevice.flashMode = AVCaptureFlashModeOff; - } - -#ifdef Q_OS_IOS - if (![captureDevice isTorchAvailable]) { - qDebugCamera() << Q_FUNC_INFO << "torch is not available at the moment"; - return false; - } -#endif - } - - if (m_flashMode == QCameraExposure::FlashOff) - captureDevice.flashMode = AVCaptureFlashModeOff; - else if (m_flashMode == QCameraExposure::FlashOn) - captureDevice.flashMode = AVCaptureFlashModeOn; - else if (m_flashMode == QCameraExposure::FlashAuto) - captureDevice.flashMode = AVCaptureFlashModeAuto; - else if (m_flashMode == QCameraExposure::FlashVideoLight) - captureDevice.torchMode = AVCaptureTorchModeOn; - - return true; -} |