TScalerCaps Class Reference

#include <icl/imageconversionextension.h>

class TScalerCaps

Public Member Functions
	TScalerCaps()
	TScalerCaps(TInt, TInt, TBool)
IMPORT_C TInt	MaxDownscaleLimit()
IMPORT_C TInt	MaxUpscaleLimit()
IMPORT_C TBool	MustPreserveAspectRatio()
IMPORT_C TBool	PowerOfTwoScalingOnly()
IMPORT_C TUint	Size()
IMPORT_C TUint	Version()

Detailed Description

Represents scaling capabilities of the code plugin.

Constructor & Destructor Documentation

TScalerCaps ( )

IMPORT_C

TScalerCaps

(

)

Constructor

TScalerCaps ( TInt, TInt, TBool )

IMPORT_C	TScalerCaps	(	TInt	aMaxUpscaleLimit,
			TInt	aMaxDownscaleLimit,
			TBool	aPreserveAspectRatioIsNeeded
		)

Constructor

Parameters
aMaxUpscaleLimit	Maximum upscaling possible.
aMaxDownscaleLimit	Maximum downscaling possible.
aPreserveAspectRatioIsNeeded	ETrue if only support preservation of aspect ratio.

Member Function Documentation

MaxDownscaleLimit ( )

IMPORT_C TInt

MaxDownscaleLimit

(

)

const

Maximum downscaling possible.

Return Value: value <= -1 : -1 means cannot downscale, -2 means half original size

MaxUpscaleLimit ( )

IMPORT_C TInt

MaxUpscaleLimit

(

)

const

Maximum upscaling possible.

Return Value: value >= 1 : 1 means cannot upscale, 2 means twice original size

MustPreserveAspectRatio ( )

IMPORT_C TBool

MustPreserveAspectRatio

(

)

const

Returns ETrue if the codec must preserve aspect ratio during scaling.

Return Value: ETrue if scaling is only possible if preservation of aspect ratio is requested. EFalse if scaling without preserving aspect ratio is possible.

PowerOfTwoScalingOnly ( )

IMPORT_C TBool

PowerOfTwoScalingOnly

(

)

const

Type of scaling which is supported.

Return Value: ETrue if can only do 1/2, 1/4, 1/8 etc downscale (limit depends on iMaxDownscaleLimit) 2, 4, 8 etc upscale (limit depends on iMaxUpscaleLimit) EFalse if can do arbitrary scaling between iMaxDownscaleLimit and iMaxUpscaleLimit

Size ( )

IMPORT_C TUint

Size

(

)

const

Compatibility - internal use only

Version ( )

IMPORT_C TUint

Version

(

)

const

Compatibility - internal use only