Collapse all Symbian^3 Application Developer Library

MCameraImageProcessing2 Class Reference

class MCameraImageProcessing2

Mixin class for implementation of extended features like color swap and color accent processing by providers of the Image Processing Camera Extension API.

Public Member Functions
void	CancelColorAccentL ()
void	CancelColorSwappingL ()
void	GetColorAccentCapabilitiesL ( TInt , CCamera::CCameraImageProcessing::TColorOperationCapabilities &)
void	GetColorAccentEntryL ( TInt , CCamera::CCameraImageProcessing::TColorOperationEntry &)
void	GetColorSwapCapabilitiesL ( TInt , CCamera::CCameraImageProcessing::TColorOperationCapabilities &)
void	GetColorSwapEntryL ( TInt , CCamera::CCameraImageProcessing::TColorOperationEntry &)
void	GetConcurrentColorAccentSupportedL ( TInt &)
void	GetConcurrentColorSwappingsSupportedL ( TInt &)
void	Release ()
void	RemoveColorAccentEntry ( TInt )
void	RemoveColorSwapEntry ( TInt )
void	SetColorAccentEntry ( TInt , const CCamera::CCameraImageProcessing::TColorOperationEntry &)
void	SetColorSwapEntry ( TInt , const CCamera::CCameraImageProcessing::TColorOperationEntry &)
void	StartColorAccent ()
void	StartColorSwapping ()

Member Functions Documentation

CancelColorAccentL()

void

CancelColorAccentL

(

)

[pure virtual]

Cancel the color accent process.

leave: May leave as a result of some error.

Note:

Used to cancel the color accent process which might have been just started. If the issued StartColorAccentL() gets cancelled, its event should report KErrCancel.

CancelColorSwappingL()

void

CancelColorSwappingL

(

)

[pure virtual]

Cancel the color swapping process.

leave: May leave as a result of some error.

Note:

Used to cancel the color swapping process which might have been just started. If the issued StartColorSwappingL() gets cancelled, its event should report KErrCancel.

GetColorAccentCapabilitiesL(TInt, CCamera::CCameraImageProcessing::TColorOperationCapabilities &)

void	GetColorAccentCapabilitiesL	(	TInt	aIndex,
			CCamera::CCameraImageProcessing::TColorOperationCapabilities &	aColorAccentCapabilities
		)	const [pure virtual]

Retrieves the color accent capabilites per entry, if different entries have different capabilities otherwise the same capabilities retrieved for a particular entry can be assumed to be valid for every entry

leave: May leave as a result of some error.

Parameters

TInt aIndex	This is a value from 0 to numOfSimultaneousColorAccent -1. Color accent capabilities specific to a particular entry are retrieved. If uniform capability exists for every entry, then this method need not be called per entry.
CCamera::CCameraImageProcessing::TColorOperationCapabilities & aColorAccentCapabilities	This retrieves the color accent capabilities.

GetColorAccentEntryL(TInt, CCamera::CCameraImageProcessing::TColorOperationEntry &)

void	GetColorAccentEntryL	(	TInt	aIndex,
			CCamera::CCameraImageProcessing::TColorOperationEntry &	aColorAccentParameters
		)	const [pure virtual]

Get the details of the color accent entry corresponding to the given index

leave: May leave as a result of some error.

Parameters

TInt aIndex	This gives the color accent entry whose information has to be retrieved.
CCamera::CCameraImageProcessing::TColorOperationEntry & aColorAccentParameters	This contains the parameters currently being used by the color accent operation for the given entry. The parameters defined for target colors in TColorOperationEntry are redundant for color accent.

GetColorSwapCapabilitiesL(TInt, CCamera::CCameraImageProcessing::TColorOperationCapabilities &)

void	GetColorSwapCapabilitiesL	(	TInt	aIndex,
			CCamera::CCameraImageProcessing::TColorOperationCapabilities &	aColorSwapCapabilities
		)	const [pure virtual]

Retrieves the color swapping capabilites per entry, if different entries have different capabilities otherwise the same capabilities retrieved for a particular entry can be assumed to be valid for every entry

leave: May leave as a result of some error.

Parameters

TInt aIndex	This is a value from 0 to numOfSimultaneousColorSwappings -1. Color swapping capabilities specific to a particular entry are retrieved. If uniform capability exists for every entry, then this method need not be called per entry.
CCamera::CCameraImageProcessing::TColorOperationCapabilities & aColorSwapCapabilities	This retrieves the color swap capabilities.

GetColorSwapEntryL(TInt, CCamera::CCameraImageProcessing::TColorOperationEntry &)

void	GetColorSwapEntryL	(	TInt	aIndex,
			CCamera::CCameraImageProcessing::TColorOperationEntry &	aColorSwapParameters
		)	const [pure virtual]

Get the details of the color swap entry corresponding to the given index

leave: May leave as a result of some error.

Parameters

TInt aIndex	This gives the color swapping entry whose information has to be retrieved.
CCamera::CCameraImageProcessing::TColorOperationEntry & aColorSwapParameters	This contains the parameters currently being used by the color swapping operation for the given entry.

GetConcurrentColorAccentSupportedL(TInt &)

void

GetConcurrentColorAccentSupportedL

(

TInt &

aConcurrentColorAccentSupported

)

const [pure virtual]

Retrieves the maximum number of color entries on which simultaneous color accent process is possible.

leave: May leave as a result of some error.

Parameters

TInt & aConcurrentColorAccentSupported

Retrieves the number of color entries on which simultaneous color accent process is possible. Retrieves 0 when color accent process is not supported.

GetConcurrentColorSwappingsSupportedL(TInt &)

void

GetConcurrentColorSwappingsSupportedL

(

TInt &

aConcurrentColorSwappingSupported

)

const [pure virtual]

Retrieves the maximum number of simultaneous color swapping possible.

leave: May leave as a result of some error.

Parameters

TInt & aConcurrentColorSwappingSupported

Retrieves the number of simultaneous color swapping supported. Retrieves 0 when swapping feature is not supported.

Release()

void

Release

(

)

[pure virtual]

Releases the interface.

RemoveColorAccentEntry(TInt)

void

RemoveColorAccentEntry

(

TInt

aIndex

)

[pure virtual]

Removes the color accent entry corresponding to the given index

Note:

Triggers KUidECamEventCIPRemoveColorAccentEntry to all MCameraObserver2 clients of the camera. HandleEvent is used to report the result or any possible error. TECAMEvent2 class should be used in order to provide the entry no. of the color being removed. Implementation Hint: On success, entry status (iEntryStatus) for that entry should be set to TValueInfo::ENotActive and saved on the implementation side.

Parameters

TInt aIndex

This gives the color accent entry to be removed.

RemoveColorSwapEntry(TInt)

void

RemoveColorSwapEntry

(

TInt

aIndex

)

[pure virtual]

Removes the color swap entry corresponding to the given index

Note:

Triggers KUidECamEventCIPRemoveColorSwapEntry to all MCameraObserver2 clients of the camera. HandleEvent is used to report the result or any possible error. TECAMEvent2 class should be used in order to provide the entry no. of the color being removed. Implementation Hint: On success, entry status (iEntryStatus) for that entry should be set to TValueInfo::ENotActive and saved on the implementation side.

Parameters

TInt aIndex

This gives the color swapping entry to be removed.

SetColorAccentEntry(TInt, const CCamera::CCameraImageProcessing::TColorOperationEntry &)

void	SetColorAccentEntry	(	TInt	aIndex,
			const CCamera::CCameraImageProcessing::TColorOperationEntry &	aColorAccentParameters
		)	[pure virtual]

Set the color accent entries

Note:

Triggers KUidECamEventCIPSetColorAccentEntry to all MCameraObserver2 clients of the camera. HandleEvent is used to report the result or any possible error. TECAMEvent2 class should be used in order to provide the entry no. of the color being set. Implementation Hint: On success, entry status (iEntryStatus) for that entry should be set to TValueInfo::EDiscreteSteps and saved on the implementation side.

Parameters

TInt aIndex	This is a value from 0 to numOfSimultaneousColorAccent -1. This helps in managing the limited no. of simultaneous color accent. If parameters are already set for the given entry, then it's up to the implementation to replace the existing one or discard it.
const CCamera::CCameraImageProcessing::TColorOperationEntry & aColorAccentParameters	The parameters necessary to define clearly the color accent operation for the given entry. iEntryStatus has to be updated by the implementation as per the result of the setting operation. So, iEntryStatus value is redundant at this point. The parameters defined for target colors in TColorOperationEntry are redundant for color accent.

SetColorSwapEntry(TInt, const CCamera::CCameraImageProcessing::TColorOperationEntry &)

void	SetColorSwapEntry	(	TInt	aIndex,
			const CCamera::CCameraImageProcessing::TColorOperationEntry &	aColorSwapParameters
		)	[pure virtual]

Set the color swap entries

Note:

Triggers KUidECamEventCIPSetColorSwapEntry to all MCameraObserver2 clients of the camera. HandleEvent is used to report the result or any possible error. TECAMEvent2 class should be used in order to provide the entry no. of the color being set. Implementation Hint: On success, entry status (iEntryStatus) for that entry should be set to TValueInfo::EDiscreteSteps and saved on the implementation side.

Parameters

TInt aIndex	This is a value from 0 to numOfSimultaneousColorSwappings -1. This helps in managing the limited no. of simultaneous color swaps. If parameters are already set for the given entry, then it's up to the implementation to replace the existing one or discard it.
const CCamera::CCameraImageProcessing::TColorOperationEntry & aColorSwapParameters	The parameters necessary to define clearly the color swapping operation for the given entry. iEntryStatus has to be updated by the implementation as per the result of the setting operation. So, iEntryStatus value is redundant at this point.

StartColorAccent()

void

StartColorAccent

(

)

[pure virtual]

Starts the color accent process after taking into account the color accent entries updated up to this point.

Note:

Triggers KUidECamEventCIPStartColorAccent to all MCameraObserver2 clients of the camera. HandleEvent is used to report the result or any possible error.

StartColorSwapping()

void

StartColorSwapping

(

)

[pure virtual]

Starts the color swapping process after taking into account the color swap entries updated up to this point.

Note:

Triggers KUidECamEventCIPStartColorSwap to all MCameraObserver2 clients of the camera. HandleEvent is used to report the result or any possible error. One possible error case is when more than one entry describe the same color source. New ecam error KErrECamColorOperationConflict used in such a case.