IMG/IMG_FileFilterTile.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * Produced by:
 *      Mark Alexander
 *      Side Effects Software Inc
 *      477 Richmond Street West
 *      Toronto, Ontario
 *      Canada   M5V 3E7
 *      416-504-9876
 *
 * NAME:        IMG_FileFilterTile ( IMG Library, C++)
 *
 * COMMENTS:
 *
 *    Allows reading and writing files using a tile interface rather than
 *    scanlines.
 */
#ifndef IMG_FILE_FILTER_TILE_H
#define IMG_FILE_FILTER_TILE_H

class UT_IntArray;

#include <UT/UT_PtrArray.h>
#include "IMG_FileFilter.h"

class IMG_API IMG_FileFilterTile : public IMG_FileFilter
{
public:
             IMG_FileFilterTile(IMG_File *file_to_filter);
    virtual ~IMG_FileFilterTile();

    virtual const char  *className() const { return "IMG_FileFilterTile"; }

    void        initTile(IMG_Interleave i);

    virtual bool readTile(const UT_InclusiveRect &rect,
                          void *data, const IMG_Plane *plane=0);
    
    virtual bool writeTile(const UT_InclusiveRect &rect,
                           const void *data,
                           const IMG_Plane *plane=0);
    
    virtual void        computeCommonData();
private:
    
    // These methods do not work with tiles. Do not call them.
    //
    virtual const void  *readPlaneScanline(int y, const IMG_Plane &pi);
    
    virtual int  writePlaneScanline(const void *data, int y,
                                    const IMG_Plane &pi);

    int myWidth;
    int myHeight;
    bool myInterleaved;
    UT_PtrArray<UT_IntArray *> myProcessedPixels;
};





#endif

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