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Diffstat (limited to 'src/plugins/symbian/ecam/s60cameraviewfinderengine.cpp')
| -rw-r--r-- | src/plugins/symbian/ecam/s60cameraviewfinderengine.cpp | 789 |
1 files changed, 0 insertions, 789 deletions
diff --git a/src/plugins/symbian/ecam/s60cameraviewfinderengine.cpp b/src/plugins/symbian/ecam/s60cameraviewfinderengine.cpp deleted file mode 100644 index 78810117f..000000000 --- a/src/plugins/symbian/ecam/s60cameraviewfinderengine.cpp +++ /dev/null @@ -1,789 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the Qt Mobility Components. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 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 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QApplication> -#include <QDesktopWidget> -#include <qcamera.h> -#include <qabstractvideosurface.h> -#include <qvideoframe.h> - -#include "s60cameraviewfinderengine.h" -#include "s60cameraengine.h" -#include "s60cameracontrol.h" -#include "s60videowidgetcontrol.h" -#include "s60videowidgetdisplay.h" -#include "s60videorenderercontrol.h" -#include "s60videowindowcontrol.h" -#include "s60videowindowdisplay.h" -#include "s60cameraconstants.h" - -#include <coemain.h> // CCoeEnv -#include <coecntrl.h> // CCoeControl -#include <w32std.h> - -// Helper function -TRect qRect2TRect(const QRect &qr) -{ - return TRect(TPoint(qr.left(), qr.top()), TSize(qr.width(), qr.height())); -} - - -S60CameraViewfinderEngine::S60CameraViewfinderEngine(S60CameraControl *control, - CCameraEngine *engine, - QObject *parent): - QObject(parent), - m_cameraEngine(engine), - m_cameraControl(0), - m_viewfinderOutput(0), - m_viewfinderDisplay(0), - m_viewfinderSurface(0), - m_wsSession(CCoeEnv::Static()->WsSession()), - m_screenDevice(*CCoeEnv::Static()->ScreenDevice()), - m_window(0), - m_desktopWidget(0), - m_vfState(EVFNotConnectedNotStarted), - m_viewfinderSize(KDefaultViewfinderSize), - m_actualViewFinderSize(KDefaultViewfinderSize), - m_viewfinderAspectRatio(0.0), - m_viewfinderType(OutputTypeNotSet), - m_viewfinderNativeType(EBitmapViewFinder), // Default type - m_isViewFinderVisible(true), // True by default (only QVideoWidgetControl supports being hidden) - m_uiLandscape(true), - m_vfErrorsSignalled(0) -{ - m_cameraControl = control; - - // Check whether platform supports DirectScreen ViewFinder - if (m_cameraEngine) { - if (m_cameraEngine->IsDirectViewFinderSupported()) - m_viewfinderNativeType = EDirectScreenViewFinder; - else - m_viewfinderNativeType = EBitmapViewFinder; - - MCameraViewfinderObserver *vfObserver = this; - m_cameraEngine->SetViewfinderObserver(vfObserver); - } - else - m_cameraControl->setError(KErrGeneral, tr("Unexpected camera error.")); - // From now on it is safe to assume engine exists - - // Check the UI orientation - QDesktopWidget* desktopWidget = QApplication::desktop(); - QRect screenRect = desktopWidget->screenGeometry(); - if (screenRect.width() > screenRect.height()) - m_uiLandscape = true; - else - m_uiLandscape = false; - - // Detect UI Rotations - m_desktopWidget = QApplication::desktop(); - if (m_desktopWidget) - connect(m_desktopWidget, SIGNAL(resized(int)), this, SLOT(handleDesktopResize(int))); -} - -S60CameraViewfinderEngine::~S60CameraViewfinderEngine() -{ - // No need to stop viewfinder: - // Engine has stopped it already - // Surface will be stopped by VideoRendererControl - - m_viewfinderOutput = 0; - m_viewfinderSurface = 0; -} - -void S60CameraViewfinderEngine::setNewCameraEngine(CCameraEngine *engine) -{ - m_cameraEngine = engine; - - if (m_cameraEngine) { - // And set observer to the new CameraEngine - MCameraViewfinderObserver *vfObserver = this; - m_cameraEngine->SetViewfinderObserver(vfObserver); - } -} - -void S60CameraViewfinderEngine::handleDesktopResize(int screen) -{ - Q_UNUSED(screen); - // UI Rotation is handled by the QVideoWidgetControl, thus this is needed - // only for the QVideoRendererControl - if (m_viewfinderType == OutputTypeRenderer) { - QSize newResolution(-1,-1); - if (m_viewfinderSurface) - newResolution = m_viewfinderSurface->nativeResolution(); - - if (newResolution.width() == -1 || newResolution.height() == -1) { - QDesktopWidget* desktopWidget = QApplication::desktop(); - QRect screenRect = desktopWidget->screenGeometry(); - newResolution = QSize(screenRect.width(), screenRect.height()); - } - - resetViewfinderSize(newResolution); - } - - // Rotate Camera if UI has rotated - checkAndRotateCamera(); -} - -void S60CameraViewfinderEngine::setVideoWidgetControl(QObject *viewfinderOutput) -{ - // Release old control if it has not already been done - if (m_viewfinderOutput) - releaseControl(m_viewfinderType); - - // Rotate Camera if UI has rotated - checkAndRotateCamera(); - - S60VideoWidgetControl* viewFinderWidgetControl = - qobject_cast<S60VideoWidgetControl*>(viewfinderOutput); - - if (viewFinderWidgetControl) { - // Check whether platform supports DirectScreen ViewFinder - if (m_cameraEngine) { - if (m_cameraEngine->IsDirectViewFinderSupported()) - m_viewfinderNativeType = EDirectScreenViewFinder; - else - m_viewfinderNativeType = EBitmapViewFinder; - } - else - return; - - m_viewfinderDisplay = viewFinderWidgetControl->display(); - - if (m_viewfinderNativeType == EDirectScreenViewFinder) { - m_viewfinderDisplay->setPaintingEnabled(false); // No Qt Painter painting - Direct rendering - connect(m_viewfinderDisplay, SIGNAL(windowHandleChanged(RWindow *)), this, SLOT(resetViewfinderDisplay())); - } else { - m_viewfinderDisplay->setPaintingEnabled(true); // Qt Painter painting - Bitmap rendering - connect(this, SIGNAL(viewFinderFrameReady(const CFbsBitmap &)), m_viewfinderDisplay, SLOT(setFrame(const CFbsBitmap &))); - } - - connect(m_viewfinderDisplay, SIGNAL(visibilityChanged(bool)), this, SLOT(handleVisibilityChange(bool))); - connect(m_viewfinderDisplay, SIGNAL(displayRectChanged(QRect, QRect)), this, SLOT(resetVideoWindowSize())); - connect(m_viewfinderDisplay, SIGNAL(windowHandleChanged(RWindow*)), this, SLOT(handleWindowChange(RWindow*))); - - m_viewfinderSize = m_viewfinderDisplay->extentRect().size(); - m_viewfinderOutput = viewfinderOutput; - m_viewfinderType = OutputTypeVideoWidget; - m_isViewFinderVisible = m_viewfinderDisplay->isVisible(); - - switch (m_vfState) { - case EVFNotConnectedNotStarted: - m_vfState = EVFIsConnectedNotStarted; - break; - case EVFNotConnectedIsStarted: - if (m_isViewFinderVisible) - m_vfState = EVFIsConnectedIsStartedIsVisible; - else - m_vfState = EVFIsConnectedIsStartedNotVisible; - break; - case EVFIsConnectedNotStarted: - case EVFIsConnectedIsStartedNotVisible: - case EVFIsConnectedIsStartedIsVisible: - // Already connected, state does not change - break; - default: - emit error(QCamera::CameraError, tr("General viewfinder error.")); - break; - } - - if (m_vfState == EVFIsConnectedIsStartedIsVisible) - startViewfinder(true); // Internal start (i.e. start if started externally) - } -} - -void S60CameraViewfinderEngine::setVideoRendererControl(QObject *viewfinderOutput) -{ - // Release old control if it has not already been done - if (m_viewfinderOutput) - releaseControl(m_viewfinderType); - - // Rotate Camera if UI has rotated - checkAndRotateCamera(); - - S60VideoRendererControl* viewFinderRenderControl = - qobject_cast<S60VideoRendererControl*>(viewfinderOutput); - - if (viewFinderRenderControl) { - m_viewfinderNativeType = EBitmapViewFinder; // Always Bitmap - - connect(viewFinderRenderControl, SIGNAL(viewFinderSurfaceSet()), - this, SLOT(rendererSurfaceSet())); - - Q_ASSERT(!viewFinderRenderControl->surface()); - m_viewfinderOutput = viewfinderOutput; - m_viewfinderType = OutputTypeRenderer; - // RendererControl viewfinder is "visible" when surface is set - m_isViewFinderVisible = false; - if (EVFIsConnectedIsStartedIsVisible) - m_vfState = EVFIsConnectedIsStartedNotVisible; - - // Use display resolution as default viewfinder resolution - m_viewfinderSize = QApplication::desktop()->screenGeometry().size(); - - switch (m_vfState) { - case EVFNotConnectedNotStarted: - m_vfState = EVFIsConnectedNotStarted; - break; - case EVFNotConnectedIsStarted: - m_vfState = EVFIsConnectedIsStartedIsVisible; // GraphicsItem "always visible" (FrameWork decides to draw/not draw) - break; - case EVFIsConnectedNotStarted: - case EVFIsConnectedIsStartedNotVisible: - case EVFIsConnectedIsStartedIsVisible: - // Already connected, state does not change - break; - default: - emit error(QCamera::CameraError, tr("General viewfinder error.")); - break; - } - - if (m_vfState == EVFIsConnectedIsStartedIsVisible) - startViewfinder(true); - } -} - -void S60CameraViewfinderEngine::setVideoWindowControl(QObject *viewfinderOutput) -{ - // Release old control if it has not already been done - if (m_viewfinderOutput) - releaseControl(m_viewfinderType); - - // Rotate Camera if UI has rotated - checkAndRotateCamera(); - - S60VideoWindowControl* viewFinderWindowControl = - qobject_cast<S60VideoWindowControl*>(viewfinderOutput); - - if (viewFinderWindowControl) { - // Check whether platform supports DirectScreen ViewFinder - if (m_cameraEngine) { - if (m_cameraEngine->IsDirectViewFinderSupported()) - m_viewfinderNativeType = EDirectScreenViewFinder; - else - m_viewfinderNativeType = EBitmapViewFinder; - } else { - return; - } - - m_viewfinderDisplay = viewFinderWindowControl->display(); - - if (m_viewfinderNativeType == EDirectScreenViewFinder) { - m_viewfinderDisplay->setPaintingEnabled(false); // No Qt Painter painting - Direct rendering - connect(m_viewfinderDisplay, SIGNAL(windowHandleChanged(RWindow *)), this, SLOT(resetViewfinderDisplay())); - } else { - m_viewfinderDisplay->setPaintingEnabled(true); // Qt Painter painting - Bitmap rendering - connect(this, SIGNAL(viewFinderFrameReady(const CFbsBitmap &)), m_viewfinderDisplay, SLOT(setFrame(const CFbsBitmap &))); - } - - connect(m_viewfinderDisplay, SIGNAL(displayRectChanged(QRect, QRect)), this, SLOT(resetVideoWindowSize())); - connect(m_viewfinderDisplay, SIGNAL(visibilityChanged(bool)), this, SLOT(handleVisibilityChange(bool))); - connect(m_viewfinderDisplay, SIGNAL(windowHandleChanged(RWindow*)), this, SLOT(handleWindowChange(RWindow*))); - - m_viewfinderSize = m_viewfinderDisplay->extentRect().size(); - m_viewfinderOutput = viewfinderOutput; - m_viewfinderType = OutputTypeVideoWindow; - m_isViewFinderVisible = m_viewfinderDisplay->isVisible(); - - switch (m_vfState) { - case EVFNotConnectedNotStarted: - m_vfState = EVFIsConnectedNotStarted; - break; - case EVFNotConnectedIsStarted: - if (m_isViewFinderVisible) - m_vfState = EVFIsConnectedIsStartedIsVisible; - else - m_vfState = EVFIsConnectedIsStartedNotVisible; - break; - case EVFIsConnectedNotStarted: - case EVFIsConnectedIsStartedNotVisible: - case EVFIsConnectedIsStartedIsVisible: - // Already connected, state does not change - break; - default: - emit error(QCamera::CameraError, tr("General viewfinder error.")); - break; - } - - if (m_vfState == EVFIsConnectedIsStartedIsVisible) - startViewfinder(true); // Internal start (i.e. start if started externally) - } -} - -void S60CameraViewfinderEngine::releaseControl(ViewfinderOutputType type) -{ - if (m_vfState == EVFIsConnectedIsStartedIsVisible) - stopViewfinder(true); - - if (m_viewfinderOutput) { - switch (type) { - case OutputTypeNotSet: - return; - case OutputTypeVideoWidget: - if (m_viewfinderType != OutputTypeVideoWidget) - return; - disconnect(m_viewfinderOutput); - m_viewfinderOutput->disconnect(this); - Q_ASSERT(m_viewfinderDisplay); - disconnect(m_viewfinderDisplay); - m_viewfinderDisplay->disconnect(this); - m_viewfinderDisplay = 0; - // Invalidate the extent rect - qobject_cast<S60VideoWidgetControl*>(m_viewfinderOutput)->setExtentRect(QRect()); - break; - case OutputTypeVideoWindow: - if (m_viewfinderType != OutputTypeVideoWindow) - return; - disconnect(m_viewfinderOutput); - m_viewfinderOutput->disconnect(this); - Q_ASSERT(m_viewfinderDisplay); - disconnect(m_viewfinderDisplay); - m_viewfinderDisplay->disconnect(this); - m_viewfinderDisplay = 0; - break; - case OutputTypeRenderer: - if (m_viewfinderType != OutputTypeRenderer) - return; - disconnect(m_viewfinderOutput); - m_viewfinderOutput->disconnect(this); - if (m_viewfinderSurface) - m_viewfinderSurface->disconnect(this); - disconnect(this, SIGNAL(viewFinderFrameReady(const CFbsBitmap &)), - this, SLOT(viewFinderBitmapReady(const CFbsBitmap &))); - break; - default: - emit error(QCamera::CameraError, tr("Unexpected viewfinder error.")); - return; - } - } - - Q_ASSERT(!m_viewfinderDisplay); - m_viewfinderOutput = 0; - m_viewfinderType = OutputTypeNotSet; - - // Update state - switch (m_vfState) { - case EVFNotConnectedNotStarted: - case EVFNotConnectedIsStarted: - // Do nothing - break; - case EVFIsConnectedNotStarted: - m_vfState = EVFNotConnectedNotStarted; - break; - case EVFIsConnectedIsStartedNotVisible: - case EVFIsConnectedIsStartedIsVisible: - m_vfState = EVFNotConnectedIsStarted; - break; - default: - emit error(QCamera::CameraError, tr("General viewfinder error.")); - break; - } -} - -void S60CameraViewfinderEngine::startViewfinder(const bool internalStart) -{ - if (!internalStart) { - switch (m_vfState) { - case EVFNotConnectedNotStarted: - m_vfState = EVFNotConnectedIsStarted; - break; - case EVFIsConnectedNotStarted: - if (m_isViewFinderVisible) - m_vfState = EVFIsConnectedIsStartedIsVisible; - else - m_vfState = EVFIsConnectedIsStartedNotVisible; - break; - case EVFNotConnectedIsStarted: - case EVFIsConnectedIsStartedNotVisible: - case EVFIsConnectedIsStartedIsVisible: - // Already started, state does not change - break; - default: - emit error(QCamera::CameraError, tr("General viewfinder error.")); - break; - } - } - - // Start viewfinder - if (m_vfState == EVFIsConnectedIsStartedIsVisible) { - - if (!m_cameraEngine) - return; - - if (m_viewfinderNativeType == EDirectScreenViewFinder) { - - if (RWindow *window = m_viewfinderDisplay ? m_viewfinderDisplay->windowHandle() : 0) { - m_window = window; - } else { - emit error(QCamera::CameraError, tr("Requesting window for viewfinder failed.")); - return; - } - - const QRect extentRect = m_viewfinderDisplay ? m_viewfinderDisplay->extentRect() : QRect(); - const QRect clipRect = m_viewfinderDisplay ? m_viewfinderDisplay->clipRect() : QRect(); - - TRect extentRectSymbian = qRect2TRect(extentRect); - TRect clipRectSymbian = qRect2TRect(clipRect); - TRAPD(err, m_cameraEngine->StartDirectViewFinderL(m_wsSession, m_screenDevice, *m_window, extentRectSymbian, clipRectSymbian)); - if (err) { - if (err == KErrNotSupported) { - emit error(QCamera::NotSupportedFeatureError, tr("Requested viewfinder size is not supported.")); - } else { - emit error(QCamera::CameraError, tr("Starting viewfinder failed.")); - } - return; - } - - m_actualViewFinderSize = QSize(extentRectSymbian.Size().iWidth, extentRectSymbian.Size().iHeight); - m_viewfinderAspectRatio = qreal(m_actualViewFinderSize.width()) / qreal(m_actualViewFinderSize.height()); - - } else { // Bitmap ViewFinder - TSize size = TSize(m_viewfinderSize.width(), m_viewfinderSize.height()); - - if( m_viewfinderType == OutputTypeRenderer && m_viewfinderSurface) { - if (!m_surfaceFormat.isValid()) { - emit error(QCamera::NotSupportedFeatureError, tr("Invalid surface format.")); - return; - } - - // Start rendering to surface with correct size and format - if (!m_viewfinderSurface->isFormatSupported(m_surfaceFormat) || - !m_viewfinderSurface->start(m_surfaceFormat)) { - emit error(QCamera::NotSupportedFeatureError, tr("Failed to start surface.")); - return; - } - - if (!m_viewfinderSurface->isActive()) - return; - } - - TRAPD(vfErr, m_cameraEngine->StartViewFinderL(size)); - if (vfErr) { - if (vfErr == KErrNotSupported) { - emit error(QCamera::NotSupportedFeatureError, tr("Requested viewfinder size is not supported.")); - } else { - emit error(QCamera::CameraError, tr("Starting viewfinder failed.")); - } - return; - } - - m_actualViewFinderSize = QSize(size.iWidth, size.iHeight); - m_viewfinderAspectRatio = qreal(m_actualViewFinderSize.width()) / qreal(m_actualViewFinderSize.height()); - - // Notify control about the frame size (triggers frame position calculation) - if (m_viewfinderDisplay) { - m_viewfinderDisplay->setNativeSize(m_actualViewFinderSize); - } else { - if (m_viewfinderType == OutputTypeRenderer && m_viewfinderSurface) { - m_viewfinderSurface->stop(); - QVideoSurfaceFormat format = m_viewfinderSurface->surfaceFormat(); - format.setFrameSize(QSize(m_actualViewFinderSize)); - format.setViewport(QRect(0, 0, m_actualViewFinderSize.width(), m_actualViewFinderSize.height())); - m_viewfinderSurface->start(format); - } - } - } - } -} - -void S60CameraViewfinderEngine::stopViewfinder(const bool internalStop) -{ - // Stop if viewfinder is started - if (m_vfState == EVFIsConnectedIsStartedIsVisible) { - if (m_viewfinderOutput && m_viewfinderType == OutputTypeRenderer && m_viewfinderSurface) { - // Stop surface if one still exists - m_viewfinderSurface->stop(); - } - - if (m_cameraEngine) - m_cameraEngine->StopViewFinder(); - } - - // Update state - if (!internalStop) { - switch (m_vfState) { - case EVFNotConnectedNotStarted: - case EVFIsConnectedNotStarted: - // Discard - break; - case EVFNotConnectedIsStarted: - m_vfState = EVFNotConnectedNotStarted; - break; - case EVFIsConnectedIsStartedNotVisible: - case EVFIsConnectedIsStartedIsVisible: - m_vfState = EVFIsConnectedNotStarted; - break; - default: - emit error(QCamera::CameraError, tr("General viewfinder error.")); - break; - } - } -} - -void S60CameraViewfinderEngine::MceoViewFinderFrameReady(CFbsBitmap& aFrame) -{ - emit viewFinderFrameReady(aFrame); - if (m_cameraEngine) - m_cameraEngine->ReleaseViewFinderBuffer(); -} - -void S60CameraViewfinderEngine::resetViewfinderSize(const QSize size) -{ - m_viewfinderSize = size; - - if(m_vfState != EVFIsConnectedIsStartedIsVisible) { - // Set native size to Window/Renderer Control - if (m_viewfinderDisplay) - m_viewfinderDisplay->setNativeSize(m_actualViewFinderSize); - return; - } - - stopViewfinder(true); - - startViewfinder(true); -} - -void S60CameraViewfinderEngine::resetVideoWindowSize() -{ - if (m_viewfinderDisplay) - resetViewfinderSize(m_viewfinderDisplay->extentRect().size()); -} - -void S60CameraViewfinderEngine::resetViewfinderDisplay() -{ - if (m_viewfinderNativeType == EDirectScreenViewFinder) { - - switch (m_viewfinderType) { - case OutputTypeVideoWidget: { - if (!m_viewfinderOutput) - return; - - // First stop viewfinder - stopViewfinder(true); - - RWindow *window = m_viewfinderDisplay->windowHandle(); - if (!window) { - return; - } - - // Then start it with the new WindowID - startViewfinder(true); - break; - } - case OutputTypeRenderer: - case OutputTypeVideoWindow: - // Do nothing - break; - - default: - // Not ViewFinder Output has been set, Discard - break; - } - } -} - -void S60CameraViewfinderEngine::rendererSurfaceSet() -{ - S60VideoRendererControl* viewFinderRenderControl = - qobject_cast<S60VideoRendererControl*>(m_viewfinderOutput); - - // Reset old surface if needed - if (m_viewfinderSurface) { - handleVisibilityChange(false); - disconnect(m_viewfinderSurface); - if (viewFinderRenderControl->surface()) - stopViewfinder(true); // Temporary stop - else - stopViewfinder(); // Stop for good - m_viewfinderSize = QApplication::desktop()->screenGeometry().size(); - m_viewfinderSurface = 0; - } - - // Set new surface - m_viewfinderSurface = viewFinderRenderControl->surface(); - if (!m_viewfinderSurface) - return; - if (!m_viewfinderSurface->nativeResolution().isEmpty()) { - if (m_viewfinderSurface->nativeResolution() != m_viewfinderSize) - resetViewfinderSize(m_viewfinderSurface->nativeResolution()); - } - - connect(m_viewfinderSurface, SIGNAL(nativeResolutionChanged(const QSize&)), - this, SLOT(resetViewfinderSize(QSize))); - - // Set Surface Properties - if (m_viewfinderSurface->supportedPixelFormats().contains(QVideoFrame::Format_RGB32)) - m_surfaceFormat = QVideoSurfaceFormat(m_actualViewFinderSize, QVideoFrame::Format_RGB32); - else if (m_viewfinderSurface->supportedPixelFormats().contains(QVideoFrame::Format_ARGB32)) - m_surfaceFormat = QVideoSurfaceFormat(m_actualViewFinderSize, QVideoFrame::Format_ARGB32); - else { - return; - } - m_surfaceFormat.setFrameRate(KViewfinderFrameRate); - m_surfaceFormat.setYCbCrColorSpace(QVideoSurfaceFormat::YCbCr_Undefined); // EColor16MU (compatible with EColor16MA) - m_surfaceFormat.setPixelAspectRatio(1,1); // PAR 1:1 - - - connect(this, SIGNAL(viewFinderFrameReady(const CFbsBitmap &)), - this, SLOT(viewFinderBitmapReady(const CFbsBitmap &))); - - // Surface set, viewfinder is "visible" - handleVisibilityChange(true); -} - -void S60CameraViewfinderEngine::viewFinderBitmapReady(const CFbsBitmap &bitmap) -{ - CFbsBitmap *bitmapPtr = const_cast<CFbsBitmap*>(&bitmap); - QPixmap pixmap = QPixmap::fromSymbianCFbsBitmap(bitmapPtr); - - QImage newImage = pixmap.toImage(); - if (newImage.format() != QImage::Format_ARGB32 && - newImage.format() != QImage::Format_RGB32) { - newImage = newImage.convertToFormat(QImage::Format_RGB32); - } - - if (!newImage.isNull()) { - QVideoFrame newFrame(newImage); - if (newFrame.isValid()) { - if (!m_viewfinderSurface->present(newFrame)) { - // Presenting may fail even if there are no errors (e.g. busy) - if (m_viewfinderSurface->error()) { - if (m_vfErrorsSignalled < KMaxVFErrorsSignalled) { - emit error(QCamera::CameraError, tr("Presenting viewfinder frame failed.")); - ++m_vfErrorsSignalled; - } - } - } - } else { - if (m_vfErrorsSignalled < KMaxVFErrorsSignalled) { - emit error(QCamera::CameraError, tr("Invalid viewfinder frame was received.")); - ++m_vfErrorsSignalled; - } - } - - } else { - if (m_vfErrorsSignalled < KMaxVFErrorsSignalled) { - emit error(QCamera::CameraError, tr("Failed to convert viewfinder frame to presentable image.")); - ++m_vfErrorsSignalled; - } - } -} - -void S60CameraViewfinderEngine::handleVisibilityChange(const bool isVisible) -{ - if (m_isViewFinderVisible == isVisible) - return; - - m_isViewFinderVisible = isVisible; - - if (m_isViewFinderVisible) { - switch (m_vfState) { - case EVFNotConnectedNotStarted: - case EVFIsConnectedNotStarted: - case EVFNotConnectedIsStarted: - case EVFIsConnectedIsStartedIsVisible: - // Discard - break; - case EVFIsConnectedIsStartedNotVisible: - m_vfState = EVFIsConnectedIsStartedIsVisible; - break; - default: - emit error(QCamera::CameraError, tr("General viewfinder error.")); - break; - } - startViewfinder(true); - } else { - // Stopping takes care of the state change - stopViewfinder(true); - } -} - -void S60CameraViewfinderEngine::handleWindowChange(RWindow *handle) -{ - stopViewfinder(true); - - if (handle) // New handle available, start viewfinder - startViewfinder(true); -} - -void S60CameraViewfinderEngine::checkAndRotateCamera() -{ - bool isUiNowLandscape = false; - QDesktopWidget* desktopWidget = QApplication::desktop(); - QRect screenRect = desktopWidget->screenGeometry(); - - if (screenRect.width() > screenRect.height()) - isUiNowLandscape = true; - else - isUiNowLandscape = false; - - // Rotate camera if possible - if (isUiNowLandscape != m_uiLandscape) { - stopViewfinder(true); - - // Request orientation reset - m_cameraControl->resetCameraOrientation(); - } - m_uiLandscape = isUiNowLandscape; -} - -void S60CameraViewfinderEngine::handleContentAspectRatioChange(const QSize& newSize) -{ - qreal newAspectRatio = qreal(newSize.width()) / qreal(newSize.height()); - // Check if aspect ratio changed - if (qFuzzyCompare(newAspectRatio, m_viewfinderAspectRatio)) - return; - - // Resize viewfinder by reducing either width or height to comply with the new aspect ratio - QSize newNativeResolution; - if (newAspectRatio > m_viewfinderAspectRatio) { // New AspectRatio is wider => Reduce height - newNativeResolution = QSize(m_actualViewFinderSize.width(), (m_actualViewFinderSize.width() / newAspectRatio)); - } else { // New AspectRatio is higher => Reduce width - newNativeResolution = QSize((m_actualViewFinderSize.height() * newAspectRatio), m_actualViewFinderSize.height()); - } - - // Notify aspect ratio change (use actual content size to notify that) - // This triggers item size/position re-calculation - if (m_viewfinderDisplay) - m_viewfinderDisplay->setNativeSize(newNativeResolution); -} - -// End of file |