Application: gvSIG desktop

/* $Id: lti_colorCompositeFilter.h 3539 2006-01-09 12:23:20Z nacho $ */

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

//                                                                         //

// 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_COLORCOMPOSITEFILTER_H

#define LTI_COLORCOMPOSITEFILTER_H

// lt_lib_mrsid_core

#include "lti_imageFilter.h"

LT_BEGIN_NAMESPACE(LizardTech)

#if defined(LT_COMPILER_MS)

   #pragma warning(push,4)

#endif

/**

 * combine N separate bands into one image

 *

 * This class creates a single N-banded image which is a composition of N single-banded

 * images.  That is, an RGB image can be created from three (nominally

 * grayscale) images which represent the red, green, and blue bands of a

 * dataset.

 */

class LTIColorCompositeFilter : public LTIImageFilter

{

public:

   /**

    * constructor

    *

    * Creates an image stage which composes the bands of the input images.

    *

    * The \a sourceImages array contains the input images.  The composed image

    * is comprised of these images, in the given order.  A NULL element in

    * this array will result in samples of 0 for the corresponding band.

    *

    * @param  sourceImages    the base images; these must be single-banded images

    * @param  numImages       the number of input images

    * @param  colorSpace      the colorspace of the new image

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

    */

   LTIColorCompositeFilter(LTIImageStage** sourceImages,

                           lt_uint16 numImages,

                           LTIColorSpace colorSpace,

                           bool takeOwnership);

   virtual ~LTIColorCompositeFilter();

   virtual LT_STATUS initialize();

   lt_int64 getPhysicalFileSize() const;

   bool isSelective() const;

protected:

   LT_STATUS decodeBegin(const LTIScene& scene);

   LT_STATUS decodeEnd();

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

private:

   typedef LTIImageFilter Super;

   LT_STATUS updateMetadata();

   LTIImageStage** m_imageReaders;

   LTIImageStage* m_refReader;

   const lt_uint16 m_numImages;

   const LTIColorSpace m_colorSpace;

   // nope

   LTIColorCompositeFilter(const LTIColorCompositeFilter&);

   LTIColorCompositeFilter& operator=(const LTIColorCompositeFilter&);

};

LT_END_NAMESPACE(LizardTech)

#if defined(LT_COMPILER_MS)

        #pragma warning(pop)

#endif

#endif // LTI_COLORCOMPOSITEFILTER_H