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Diffstat (limited to 'src/plugins/avfoundation/camera/avfcamerawindowcontrol.mm')
| -rw-r--r-- | src/plugins/avfoundation/camera/avfcamerawindowcontrol.mm | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/src/plugins/avfoundation/camera/avfcamerawindowcontrol.mm b/src/plugins/avfoundation/camera/avfcamerawindowcontrol.mm new file mode 100644 index 000000000..5154d0646 --- /dev/null +++ b/src/plugins/avfoundation/camera/avfcamerawindowcontrol.mm @@ -0,0 +1,262 @@ +/**************************************************************************** +** +** Copyright (C) 2020 The Qt Company Ltd and/or its subsidiary(-ies). +** 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 "avfcamerawindowcontrol.h" + +#import <AVFoundation/AVFoundation.h> +#import <QuartzCore/CATransaction.h> + +#if QT_HAS_INCLUDE(<AppKit/AppKit.h>) +#import <AppKit/AppKit.h> +#endif + +#if QT_HAS_INCLUDE(<UIKit/UIKit.h>) +#import <UIKit/UIKit.h> +#endif + +QT_USE_NAMESPACE + +AVFCameraWindowControl::AVFCameraWindowControl(QObject *parent) + : QVideoWindowControl(parent) +{ + setObjectName(QStringLiteral("AVFCameraWindowControl")); +} + +AVFCameraWindowControl::~AVFCameraWindowControl() +{ + releaseNativeLayer(); +} + +WId AVFCameraWindowControl::winId() const +{ + return m_winId; +} + +void AVFCameraWindowControl::setWinId(WId id) +{ + if (m_winId == id) + return; + + m_winId = id; + + detachNativeLayer(); + m_nativeView = (NativeView*)m_winId; + attachNativeLayer(); +} + +QRect AVFCameraWindowControl::displayRect() const +{ + return m_displayRect; +} + +void AVFCameraWindowControl::setDisplayRect(const QRect &rect) +{ + if (m_displayRect != rect) { + m_displayRect = rect; + updateCaptureLayerBounds(); + } +} + +bool AVFCameraWindowControl::isFullScreen() const +{ + return m_fullscreen; +} + +void AVFCameraWindowControl::setFullScreen(bool fullscreen) +{ + if (m_fullscreen != fullscreen) { + m_fullscreen = fullscreen; + Q_EMIT fullScreenChanged(fullscreen); + } +} + +void AVFCameraWindowControl::repaint() +{ + if (m_captureLayer) + [m_captureLayer setNeedsDisplay]; +} + +QSize AVFCameraWindowControl::nativeSize() const +{ + return m_nativeSize; +} + +void AVFCameraWindowControl::setNativeSize(QSize size) +{ + if (m_nativeSize != size) { + m_nativeSize = size; + Q_EMIT nativeSizeChanged(); + } +} + +Qt::AspectRatioMode AVFCameraWindowControl::aspectRatioMode() const +{ + return m_aspectRatioMode; +} + +void AVFCameraWindowControl::setAspectRatioMode(Qt::AspectRatioMode mode) +{ + if (m_aspectRatioMode != mode) { + m_aspectRatioMode = mode; + updateAspectRatio(); + } +} + +int AVFCameraWindowControl::brightness() const +{ + return 0; +} + +void AVFCameraWindowControl::setBrightness(int brightness) +{ + if (0 != brightness) + qWarning("AVFCameraWindowControl doesn't support changing Brightness"); +} + +int AVFCameraWindowControl::contrast() const +{ + return 0; +} + +void AVFCameraWindowControl::setContrast(int contrast) +{ + if (0 != contrast) + qWarning("AVFCameraWindowControl doesn't support changing Contrast"); +} + +int AVFCameraWindowControl::hue() const +{ + return 0; +} + +void AVFCameraWindowControl::setHue(int hue) +{ + if (0 != hue) + qWarning("AVFCameraWindowControl doesn't support changing Hue"); +} + +int AVFCameraWindowControl::saturation() const +{ + return 0; +} + +void AVFCameraWindowControl::setSaturation(int saturation) +{ + if (0 != saturation) + qWarning("AVFCameraWindowControl doesn't support changing Saturation"); +} + +void AVFCameraWindowControl::setLayer(AVCaptureVideoPreviewLayer *capturePreviewLayer) +{ + if (m_captureLayer == capturePreviewLayer) + return; + + releaseNativeLayer(); + + m_captureLayer = capturePreviewLayer; + + if (m_captureLayer) + retainNativeLayer(); +} + +void AVFCameraWindowControl::updateAspectRatio() +{ + if (m_captureLayer) { + switch (m_aspectRatioMode) { + case Qt::IgnoreAspectRatio: + [m_captureLayer setVideoGravity:AVLayerVideoGravityResize]; + break; + case Qt::KeepAspectRatio: + [m_captureLayer setVideoGravity:AVLayerVideoGravityResizeAspect]; + break; + case Qt::KeepAspectRatioByExpanding: + [m_captureLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill]; + break; + default: + break; + } + } +} + +void AVFCameraWindowControl::updateCaptureLayerBounds() +{ + if (m_captureLayer && m_nativeView) { + [CATransaction begin]; + [CATransaction setDisableActions: YES]; // disable animation/flicks + m_captureLayer.frame = m_displayRect.toCGRect(); + [CATransaction commit]; + } +} + +void AVFCameraWindowControl::retainNativeLayer() +{ + [m_captureLayer retain]; + + updateAspectRatio(); + attachNativeLayer(); +} + +void AVFCameraWindowControl::releaseNativeLayer() +{ + if (m_captureLayer) { + detachNativeLayer(); + [m_captureLayer release]; + m_captureLayer = nullptr; + } +} + +void AVFCameraWindowControl::attachNativeLayer() +{ + if (m_captureLayer && m_nativeView) { +#if defined(Q_OS_MACOS) + m_nativeView.wantsLayer = YES; +#endif + CALayer *nativeLayer = m_nativeView.layer; + [nativeLayer addSublayer:m_captureLayer]; + updateCaptureLayerBounds(); + } +} + +void AVFCameraWindowControl::detachNativeLayer() +{ + if (m_captureLayer && m_nativeView) + [m_captureLayer removeFromSuperlayer]; +} + +#include "moc_avfcamerawindowcontrol.cpp" |