--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraxui/cxengine/src/cxeautofocuscontrolsymbian.cpp Tue Aug 31 15:03:46 2010 +0300
@@ -0,0 +1,531 @@
+/*
+* Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#include <QMetaType>
+#include <QImage>
+#include <fbs.h>
+#include <ecam.h> // CCamera
+#include <ecam/ecamadvsettingsintf.h> // CCamera
+#include <ecamadvsettings.h>
+
+#include "cxesettings.h"
+#include "cxeautofocuscontrolsymbian.h"
+#include "cxutils.h"
+#include "cxecameradevice.h" // CxeCameraDevice
+#include "cxesettingsmappersymbian.h"
+#include "cxeerrormappingsymbian.h"
+#include "cxestate.h"
+
+#include "OstTraceDefinitions.h"
+#ifdef OST_TRACE_COMPILER_IN_USE
+#include "cxeautofocuscontrolsymbianTraces.h"
+#endif
+
+
+
+/*
+* CxeAutoFocusControlSymbian::CxeAutoFocusControlSymbian
+*/
+CxeAutoFocusControlSymbian::CxeAutoFocusControlSymbian(CxeCameraDevice &cameraDevice,
+ CxeSettings &settings)
+ : CxeStateMachine("CxeAutoFocusControlSymbian"),
+ mCameraDevice(cameraDevice),
+ mAdvancedSettings(NULL),
+ mSettings(settings),
+ mCancelled(false),
+ mFaceTrackingOverride(false)
+{
+ CX_DEBUG_ENTER_FUNCTION();
+
+ qRegisterMetaType<CxeAutoFocusControl::State>();
+
+ initializeStates();
+
+ OstTrace0(camerax_performance, CXEAUTOFOCUSCONTROLSYMBIAN_CREATE_MID1, "msg: e_CX_ENGINE_CONNECT_SIGNALS 1");
+ // connect signals from cameraDevice, so we recieve events when camera reference changes
+ QObject::connect( &cameraDevice,
+ SIGNAL(prepareForCameraDelete()),
+ this,SLOT(prepareForCameraDelete()) );
+
+ QObject::connect( &cameraDevice,
+ SIGNAL(cameraAllocated(CxeError::Id)),
+ this,SLOT(handleCameraAllocated(CxeError::Id)) );
+
+ QObject::connect( &cameraDevice,
+ SIGNAL(prepareForRelease()),
+ this,SLOT(prepareForRelease()) );
+
+ // connect scene / setting change callbacks to settings control
+ QObject::connect(&mSettings,
+ SIGNAL(settingValueChanged(const QString&,QVariant)),
+ this,
+ SLOT(handleSettingValueChanged(const QString&,QVariant)));
+
+ OstTrace0(camerax_performance, CXEAUTOFOCUSCONTROLSYMBIAN_CREATE_MID2, "msg: e_CX_ENGINE_CONNECT_SIGNALS 0");
+
+ initializeResources();
+
+ setMode(CxeAutoFocusControl::Hyperfocal);
+ // autofocus sounds should be disabled by default
+ mSoundEnabled = false;
+
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+
+/*
+* CxeAutoFocusControlSymbian::~CxeAutoFocusControlSymbian
+*/
+CxeAutoFocusControlSymbian::~CxeAutoFocusControlSymbian()
+{
+ CX_DEBUG_ENTER_FUNCTION();
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+/*
+* Start Autofocus
+* \param soundEnabled False if the auto focus sound don't need to be played
+* Default value for soundEnabled is true
+*/
+CxeError::Id CxeAutoFocusControlSymbian::start(bool soundEnabled)
+{
+ CX_ASSERT_ALWAYS(mAdvancedSettings);
+
+ CX_DEBUG( ("CxeAutoFocusControlSymbian::start() <> state: %d, sound enabled: %d",
+ state(), soundEnabled ) );
+
+ mSoundEnabled = soundEnabled;
+ CxeError::Id error = CxeError::None;
+
+ if (!isFixedFocusMode(mode())) {
+ if ( state() != CxeAutoFocusControl::InProgress && state() != CxeAutoFocusControl::Canceling ) {
+ CX_DEBUG(("CxeAutoFocusControlSymbian::start() calling SetAutoFocusType"));
+ mCancelled = false;
+ setState(InProgress);
+ setFocusRange(mAFRange);
+ setFocusType(CCamera::CCameraAdvancedSettings::EAutoFocusTypeSingle);
+ } else { // AF was started earlier, can't start until it completes
+ error = CxeError::InUse;
+ }
+ }
+
+ CX_DEBUG( ("CxeAutoFocusControlSymbian::start() <= error: %d", error ) );
+ return error;
+}
+
+
+
+/*
+* Cancel Autofocus
+*/
+void CxeAutoFocusControlSymbian::cancel()
+{
+ CX_DEBUG( ("CxeAutoFocusControlSymbian::cancel <> state: %d", state() ) );
+
+ CX_DEBUG_ASSERT(mAdvancedSettings);
+
+ if (!mCancelled && !isFixedFocusMode(mode())) {
+ if (state() == CxeAutoFocusControl::InProgress) {
+ // Need to stop current AF first. Wait for AF event to proceed.
+ setState(CxeAutoFocusControl::Canceling);
+ setFocusType(CCamera::CCameraAdvancedSettings::EAutoFocusTypeOff);
+
+ } else if (state() != CxeAutoFocusControl::Canceling) {
+ // Cancel means move to hyperfocal.
+ setState(CxeAutoFocusControl::Canceling);
+ CX_DEBUG(("CxeAutoFocusControlSymbian::cancel() moving to hyperfocal"));
+ setFocusRange(CCamera::CCameraAdvancedSettings::EFocusRangeHyperfocal);
+ setFocusType(CCamera::CCameraAdvancedSettings::EAutoFocusTypeSingle);
+ }
+ }
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+
+/*
+* Set Autofocus mode
+*/
+void CxeAutoFocusControlSymbian::setMode(CxeAutoFocusControl::Mode newMode)
+{
+ CX_DEBUG_ENTER_FUNCTION();
+
+ CX_DEBUG_ASSERT(mAdvancedSettings);
+
+ mAfMode = newMode;
+ mAFRange = CxeSettingsMapperSymbian::Map2CameraAutofocus(mAfMode);
+
+ CX_DEBUG(("CxeAutoFocusControlSymbian::setMode() mAFRange: %d", mAFRange));
+
+ mCancelled = false;
+ setFocusRange(mAFRange);
+
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+/*
+* returns Autofocus mode
+*/
+CxeAutoFocusControl::Mode CxeAutoFocusControlSymbian::mode() const
+{
+ return mAfMode;
+}
+
+/**
+* Is the given mode a fixed focus mode?
+*/
+bool CxeAutoFocusControlSymbian::isFixedFocusMode(CxeAutoFocusControl::Mode mode) const
+{
+ return (mode == CxeAutoFocusControl::Hyperfocal
+ || mode == CxeAutoFocusControl::Infinity);
+}
+
+/*
+* To check if Autofocus is supported
+*/
+bool CxeAutoFocusControlSymbian::supported() const
+{
+ CX_DEBUG_ENTER_FUNCTION();
+
+ bool supported =
+ (supportedFocusTypes() != CCamera::CCameraAdvancedSettings::EAutoFocusTypeOff);
+
+ CX_DEBUG_EXIT_FUNCTION();
+ return supported;
+}
+
+
+
+/*
+* Slot for handling ECam events
+*/
+void CxeAutoFocusControlSymbian::handleCameraEvent(int eventUid, int error)
+{
+ CX_DEBUG_ENTER_FUNCTION();
+
+ CX_DEBUG( ("CxeAutoFocusControlSymbian::handleCameraEvent <> state: %d error %d", state(), error ) );
+ CX_DEBUG( ("CxeAutoFocusControlSymbian::handleCameraEvent <> uid: %x optimalfocusuid: %x focustype2uid %x",
+ eventUid,
+ KUidECamEventCameraSettingsOptimalFocusUidValue,
+ KUidECamEventCameraSettingAutoFocusType2UidValue ));
+
+ // We're only interested in autofocus events
+ if ( eventUid == KUidECamEventCameraSettingsOptimalFocusUidValue ||
+ eventUid == KUidECamEventCameraSettingAutoFocusType2UidValue ||
+ eventUid == KUidECamEventCameraSettingFocusRangeUidValue) {
+ // Autofocus Event handle it.
+ handleAfEvent(eventUid, error);
+ }
+
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+
+
+void CxeAutoFocusControlSymbian::prepareForRelease()
+{
+
+ CX_DEBUG_ENTER_FUNCTION();
+
+ // camera is anyway released, so no need to cancel the AF anyway
+ setState(CxeAutoFocusControl::Unknown);
+ mCancelled = false;
+
+ CX_DEBUG_EXIT_FUNCTION();
+
+}
+
+
+
+/*
+* camera reference changing, release resources
+*/
+void CxeAutoFocusControlSymbian::prepareForCameraDelete()
+{
+ CX_DEBUG_ENTER_FUNCTION();
+
+ prepareForRelease();
+ mAdvancedSettings = NULL;
+
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+
+/*
+* new camera available,
+*/
+void CxeAutoFocusControlSymbian::handleCameraAllocated(CxeError::Id error)
+{
+ CX_DEBUG_ENTER_FUNCTION();
+ if (!error) {
+ setState(CxeAutoFocusControl::Unknown);
+ mCancelled = false;
+ initializeResources();
+ }
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*
+* CxeAutoFocusControlSymbian::state
+*/
+CxeAutoFocusControl::State CxeAutoFocusControlSymbian::state() const
+{
+ return static_cast<State>( stateId() );
+}
+
+/*
+* CxeAutoFocusControlSymbian::handleStateChanged
+*/
+void CxeAutoFocusControlSymbian::handleStateChanged( int newStateId, CxeError::Id error )
+{
+ emit stateChanged(static_cast<State>(newStateId), error);
+}
+
+/*
+* CxeAutoFocusControlSymbian::initializeStates
+*/
+void CxeAutoFocusControlSymbian::initializeStates()
+{
+ // addState( id, name, allowed next states )
+ addState( new CxeState( Unknown , "Unknown", InProgress | Canceling ) );
+ addState( new CxeState( InProgress , "InProgress", Unknown | Failed | Ready | Canceling ) );
+ addState( new CxeState( Failed , "Failed", InProgress | Unknown | Canceling ) );
+ addState( new CxeState( Ready , "Ready", Unknown | InProgress | Canceling ) );
+ addState( new CxeState( Canceling , "Canceling", Unknown ) );
+
+ setInitialState( Unknown );
+}
+
+/*
+* CxeAutoFocusControlSymbian::initializeResources
+*/
+void CxeAutoFocusControlSymbian::initializeResources()
+{
+ CX_DEBUG_ENTER_FUNCTION();
+
+ // No check if non-null. Not supported if zero pointer (see supported() ).
+ mAdvancedSettings = mCameraDevice.advancedSettings();
+ CX_ASSERT_ALWAYS(mAdvancedSettings);
+
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+/*
+* CxeAutoFocusControlSymbian::setFocusRange
+*/
+void CxeAutoFocusControlSymbian::setFocusRange(CCamera::CCameraAdvancedSettings::TFocusRange range)
+{
+ CX_DEBUG_ENTER_FUNCTION();
+ CX_DEBUG_ASSERT(mAdvancedSettings);
+
+ mAdvancedSettings->SetFocusRange(range);
+
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*
+* CxeAutoFocusControlSymbian::focusRange
+*/
+CCamera::CCameraAdvancedSettings::TFocusRange CxeAutoFocusControlSymbian::focusRange() const
+{
+ CX_DEBUG_ENTER_FUNCTION();
+ const CCamera::CCameraAdvancedSettings::TFocusRange range(
+ mAdvancedSettings
+ ? mAdvancedSettings->FocusRange()
+ : CCamera::CCameraAdvancedSettings::EFocusRangeAuto );
+
+ CX_DEBUG_EXIT_FUNCTION();
+ return range;
+}
+
+/*
+* CxeAutoFocusControlSymbian::setFocusType
+*/
+void CxeAutoFocusControlSymbian::setFocusType(CCamera::CCameraAdvancedSettings::TAutoFocusType type)
+{
+ CX_DEBUG_ENTER_FUNCTION();
+ CX_DEBUG_ASSERT(mAdvancedSettings);
+
+ mAdvancedSettings->SetAutoFocusType(type);
+
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*
+* CxeAutoFocusControlSymbian::supportedFocusTypes
+*/
+int CxeAutoFocusControlSymbian::supportedFocusTypes() const
+{
+ CX_DEBUG_ENTER_FUNCTION();
+
+ const int support( mAdvancedSettings
+ ? mAdvancedSettings->SupportedAutoFocusTypes()
+ : CCamera::CCameraAdvancedSettings::EAutoFocusTypeOff );
+
+ CX_DEBUG_EXIT_FUNCTION();
+ return support;
+}
+
+/*
+* CxeAutoFocusControlSymbian::focusType
+*/
+CCamera::CCameraAdvancedSettings::TAutoFocusType CxeAutoFocusControlSymbian::focusType() const
+{
+ CX_DEBUG_ENTER_FUNCTION();
+
+ const CCamera::CCameraAdvancedSettings::TAutoFocusType type(
+ mAdvancedSettings
+ ? mAdvancedSettings->AutoFocusType()
+ : CCamera::CCameraAdvancedSettings::EAutoFocusTypeOff );
+
+ CX_DEBUG_EXIT_FUNCTION();
+ return type;
+}
+
+
+/*
+* Image Scene mode changed, get the new autofocus value
+*/
+void CxeAutoFocusControlSymbian::handleSceneChanged(const QVariant& sceneData)
+{
+ CX_DEBUG_ENTER_FUNCTION();
+
+ CxeScene scene = sceneData.value<CxeScene>();
+ // whenever scene mode is changed we set the state to unknown
+ setState(CxeAutoFocusControl::Unknown);
+
+ // we are interested only in the AF range.
+ if(scene.contains(CxeSettingIds::FOCAL_RANGE) && supported() ) {
+
+ setMode(static_cast<CxeAutoFocusControl::Mode>(scene[CxeSettingIds::FOCAL_RANGE].toInt()));
+
+ if (isFixedFocusMode(mode())) {
+ // Focus now if a fixed focus mode is used.
+ setFocusType(CCamera::CCameraAdvancedSettings::EAutoFocusTypeSingle);
+ // Set state to InProgress, so we know to set it ready in ECAM callback.
+ setState(CxeAutoFocusControl::InProgress);
+ }
+ }
+
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+
+/*
+* CxeAutoFocusControlSymbian::handleAfEvent
+*/
+void CxeAutoFocusControlSymbian::handleAfEvent(int eventUid, int error)
+{
+ CX_DEBUG_ENTER_FUNCTION();
+
+ switch ( state() ) {
+ case CxeAutoFocusControl::InProgress: {
+ if (eventUid == KUidECamEventCameraSettingsOptimalFocusUidValue ) {
+ OstTrace0(camerax_performance, CXEAUTOFOCUSCONTROLSYMBIAN_AF_LOCK, "msg: e_CX_AUTOFOCUS_LOCK 0");
+
+ CX_DEBUG(("CxeAutoFocusControlSymbian::handleAfEvent <> KUidECamEventCameraSettingsOptimalFocus"));
+ if (KErrNone == error) {
+ setState(CxeAutoFocusControl::Ready);
+ } else {
+ setState(CxeAutoFocusControl::Failed, CxeErrorHandlingSymbian::map(error));
+ }
+ } else if (eventUid == KUidECamEventCameraSettingFocusRangeUidValue) {
+ // check for error, we don't need this event for anything else
+ if (error != KErrNone) {
+ CX_DEBUG(("CxeAutofocusControlSymbian::handleAfEvent <> "
+ "KUidECamEventCameraSettingFocusRangeUidValue: autofocus failed %d", error));
+ setState(CxeAutoFocusControl::Failed, CxeErrorHandlingSymbian::map(error));
+ }
+ }
+ break;
+ }
+ case CxeAutoFocusControl::Canceling: {
+ CX_DEBUG(("CxeAutoFocusControlSymbian::handleAfEvent <> Canceling"));
+ // Cancelling started by setting AF off to stop ongoing focus operation.
+ // Finalize cancelling by setting lens to hyperfocal position.
+ if (eventUid == KUidECamEventCameraSettingAutoFocusType2UidValue) {
+ if (focusType() == CCamera::CCameraAdvancedSettings::EAutoFocusTypeOff) {
+ setFocusRange(CCamera::CCameraAdvancedSettings::EFocusRangeHyperfocal);
+ setFocusType(CCamera::CCameraAdvancedSettings::EAutoFocusTypeSingle);
+ }
+ } else if (eventUid == KUidECamEventCameraSettingsOptimalFocusUidValue) {
+ mCancelled = true;
+ setState(CxeAutoFocusControl::Unknown);
+ }
+
+ break;
+ }
+ default:
+ break;
+ } // end switch
+
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+ * Public method for checking if auto focus sound is enabled
+ * \return true if enabled
+ */
+bool CxeAutoFocusControlSymbian::isSoundEnabled() const
+{
+ return mSoundEnabled;
+}
+
+/*!
+* Handle new setting value.
+* New value is set to camera.
+* \param settingId The id of the updated setting
+* \param newValue A new value for the updated setting
+*/
+void CxeAutoFocusControlSymbian::handleSettingValueChanged(const QString& settingId, QVariant newValue)
+{
+ CX_DEBUG_ENTER_FUNCTION();
+ if (settingId == CxeSettingIds::FACE_TRACKING) {
+ // Updating AF mode when face tracking is activated
+ // in scene mode which doesn't support face tracking
+ if (newValue.toInt()) {
+ //Face tracking enabled
+ if(mAfMode == CxeAutoFocusControl::Infinity ||
+ mAfMode == CxeAutoFocusControl::Hyperfocal) {
+ mPreviousAFMode = mAfMode;
+ setMode(CxeAutoFocusControl::Auto);
+ mFaceTrackingOverride = true;
+ }
+ } else {
+ //Face tracking disabled
+ if (mFaceTrackingOverride) {
+ mAfMode = mPreviousAFMode;
+ setMode(mAfMode);
+ mFaceTrackingOverride = false;
+ }
+ }
+
+ } else {
+ // do nothing
+ }
+
+ CX_DEBUG_EXIT_FUNCTION();
+}
+
+// end of file