1 // Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __PPMCONVERT_H__

    17 #define __PPMCONVERT_H__

    18 

    19 #include "icl/imageplugin.h"

    20 #include "PPM1Codec.h"

    21 #include "icl/imageconversionextension.h"

    22 #include "pluginextensionmanager.h"

    23 

    24 // Decoder.

    25 class CPpmReadCodec;

    26 class CPpmDecoder : public CImageDecoderPlugin

    27 	{

    28 friend class CPpmReadCodec;

    29 

    30 public:

    31 	static CPpmDecoder* NewL();

    32 	virtual ~CPpmDecoder();

    33 

    34 	virtual void ImageType(TInt aFrameNumber, TUid& aImageType, TUid& aImageSubType) const;

    35 	CFrameInfoStrings* FrameInfoStringsL(RFs& aFs, TInt aFrameNumber);

    36 	virtual void GetExtensionL(TUid aExtUid, MImageConvExtension*& aExtPtr);

    37 	virtual void SetClippingRectL(const TRect* aClipRect);

    38 	virtual TInt GetDestinationSize(TSize& aSize, TInt aFrameNumber);

    39 

    40 private:

    41 	CPpmDecoder();

    42 

    43 	void InternalizeHeaderL(TLex8& aLex);

    44 	void SkipCommentAndWhiteSpaceL(TLex8& aLex);

    45 	void DoSkipCommentL(TLex8& aLex);

    46 

    47 	TBool Compressed() const;

    48 	void SetCompressed(TBool aCompressed);

    49 	TBool InComment() const;

    50 	void SetInComment(TBool aInComment);

    51 	TInt DataShift() const;

    52 

    53 	// From CImageDecoderPlugin

    54 	void ScanDataL();

    55 	// Called by ScanDataL.

    56 	// Opens file, scans header and validates format.

    57 	void ReadFormatL();

    58 

    59 private:

    60 	TInt iDataShift;

    61 	TInt iMaxValue;

    62 	TUint iFlags;

    63 	enum TFlags

    64 		{

    65 		EFlagCompressed=0x01,

    66 		EFlagInComment=0x02

    67 		};

    68 	CPluginExtensionManager* iExtensionManager; // owned

    69 	};

    70 

    71 // CPpmEncoder

    72 class CPpmEncoder : public CImageEncoderPlugin

    73 	{

    74 public:

    75 	static CPpmEncoder* NewL();

    76 	virtual ~CPpmEncoder();

    77 protected:

    78 	// from CImageEncoderPlugin

    79 	void PrepareEncoderL(const CFrameImageData* aFrameImageData);

    80 	void UpdateHeaderL();

    81 private:

    82 	CPpmEncoder();

    83 	};

    84 

    85 #include "Ppm1Convert.inl"

    86 

    87 #endif // __PPMCONVERT_H__

    88