Application: gvSIG desktop

/* $Id: lti_sampleMapTransformer.h 9099 2006-11-29 12:16:22Z mija $ */

/* //////////////////////////////////////////////////////////////////////////

//                                                                         //

// This code is Copyright (c) 2004 LizardTech, Inc, 1008 Western Avenue,   //

// Suite 200, Seattle, WA 98104.  Unauthorized use or distribution         //

// prohibited.  Access to and use of this code is permitted only under     //

// license from LizardTech, Inc.  Portions of the code are protected by    //

// US and foreign patents and other filings. All Rights Reserved.          //

//                                                                         //

////////////////////////////////////////////////////////////////////////// */

/* PUBLIC */

#ifndef LTI_SAMPLEMAPTRANSFORMER_H

#define LTI_SAMPLEMAPTRANSFORMER_H

// lt_lib_mrsid_core

#include "lti_imageFilter.h"

LT_BEGIN_NAMESPACE(LizardTech)

#if defined(LT_COMPILER_MS)

   #pragma warning(push,4)

#endif

class LTIReusableBSQBuffer;

/**

 * remaps the color bands of an image

 *

 * This class provides the ability to remap the color bands of an image, e.g.

 * from R-G-B to B-G-R.  Only proper permutations are supported; that is, the

 * number of bands may not be changed, and all bands must appear exactly once

 * in the remapped image.

 *

 * @note This class is \b deprecated.  A better way to remap the bands is to

 * manipulate the band pointers contained in the LTISceneBuffer object at the

 * end of the pipeline.

 */

class LTISampleMapTransformer : public LTIImageFilter

{

public:

   /**

    * constructor

    *

    * Creates an image stage with the bands of the source image reordered,

    * e.g. to change an image from RGB to BGR format.

    *

    * The length of the permutation array is equal to the number of bands in

    * the image and the elements must be a proper permutation of the band

    * numbers.  That is, the default map "0,1,2" may be set to "2,1,0" or

    * "1,2,0" but not "0,1,1" or "2".

    *

    * @param  sourceImage   the base image

    * @param  dstSampleMap  the band permutation array (if NULL, the default

    *                       map of "0,1,2,..." will be used)

    * @param takeOwnership  set to true to have the filter delete the \a sourceImage

    */

   LTISampleMapTransformer(LTIImageStage* sourceImage,

                           const lt_uint16* dstSampleMap,

                           bool takeOwnership);

   virtual ~LTISampleMapTransformer();

   virtual LT_STATUS initialize();

protected:

   LT_STATUS decodeBegin(const LTIScene& scene);

   LT_STATUS decodeEnd();

   LT_STATUS decodeStrip(LTISceneBuffer& stripBuffer, const LTIScene& stripScene);

private:

   typedef LTIImageFilter Super;

   const lt_uint16* m_tmpSampleMap;

   lt_uint16* m_newMap;

   bool m_isIdentity;

   LTIReusableBSQBuffer* m_buffer;

   // nope

   LTISampleMapTransformer(const LTISampleMapTransformer&);

   LTISampleMapTransformer& operator=(const LTISampleMapTransformer&);

};

LT_END_NAMESPACE(LizardTech)

#if defined(LT_COMPILER_MS)

        #pragma warning(pop)

#endif

#endif // LTI_SAMPLEMAPTRANSFORMER_H