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/*****************************************************************************
* $Id: IntergraphBand.h 25785 2013-03-23 11:34:53Z rouault $
*
* Project: Intergraph Raster Format support
* Purpose: Read selected types of Intergraph Raster Format
* Author: Ivan Lucena [ivan.lucena@pmldnet.com]
*
******************************************************************************
* Copyright (c) 2007, Ivan Lucena
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files ( the "Software" ),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#include "IngrTypes.h"
// ----------------------------------------------------------------------------
// Intergraph IntergraphRasterBand
// ----------------------------------------------------------------------------
class IntergraphRasterBand : public GDALPamRasterBand
{
friend class IntergraphDataset;
protected:
GDALColorTable *poColorTable;
uint32 nDataOffset;
uint32 nBlockBufSize;
uint32 nBandStart;
uint8 nRGBIndex;
INGR_Format eFormat;
bool bTiled;
int nFullBlocksX;
int nFullBlocksY;
GByte *pabyBlockBuf;
uint32 nTiles;
INGR_TileItem *pahTiles;
INGR_HeaderOne hHeaderOne;
INGR_HeaderTwoA hHeaderTwo;
INGR_TileHeader hTileDir;
int nRLEOffset;
public:
IntergraphRasterBand( IntergraphDataset *poDS,
int nBand,
int nBandOffset,
GDALDataType eType = GDT_Unknown);
~IntergraphRasterBand();
virtual double GetMinimum( int *pbSuccess = NULL );
virtual double GetMaximum( int *pbSuccess = NULL );
virtual GDALColorTable *GetColorTable();
virtual GDALColorInterp GetColorInterpretation();
virtual CPLErr IReadBlock( int nBlockXOff, int nBlockYOff, void *pImage );
virtual CPLErr IWriteBlock( int nBlockXOff, int nBlockYOff, void *pImage );
virtual CPLErr SetColorTable( GDALColorTable *poColorTable );
virtual CPLErr SetStatistics( double dfMin, double dfMax, double dfMean, double dfStdDev );
protected:
int HandleUninstantiatedTile( int nBlockXOff, int nBlockYOff, void* pImage);
int LoadBlockBuf( int nBlockXOff, int nBlockYOff, int nBlockBytes, GByte *pabyBlock );
void ReshapeBlock( int nBlockXOff, int nBlockYOff, int nBlockBytes, GByte *pabyBlock );
void FlushBandHeader( void );
void BlackWhiteCT( bool bReverse = false );
};
// ----------------------------------------------------------------------------
// Intergraph IntergraphRGBBand
// ----------------------------------------------------------------------------
class IntergraphRGBBand : public IntergraphRasterBand
{
public:
IntergraphRGBBand( IntergraphDataset *poDS,
int nBand,
int nBandOffset,
int nRGorB );
virtual CPLErr IReadBlock( int nBlockXOff, int nBlockYOff, void *pImage );
};
// ----------------------------------------------------------------------------
// Intergraph IntergraphBitmapBand
// ----------------------------------------------------------------------------
class IntergraphBitmapBand : public IntergraphRasterBand
{
friend class IntergraphDataset;
private:
GByte *pabyBMPBlock;
uint32 nBMPSize;
int nQuality;
int nRGBBand;
public:
IntergraphBitmapBand( IntergraphDataset *poDS,
int nBand,
int nBandOffset,
int nRGorB = 1 );
~IntergraphBitmapBand();
virtual CPLErr IReadBlock( int nBlockXOff, int nBlockYOff, void *pImage );
virtual GDALColorInterp GetColorInterpretation();
};
// ----------------------------------------------------------------------------
// Intergraph IntergraphRLEBand
// ----------------------------------------------------------------------------
class IntergraphRLEBand : public IntergraphRasterBand
{
friend class IntergraphDataset;
private:
GByte *pabyRLEBlock;
uint32 nRLESize;
int bRLEBlockLoaded;
uint32 *panRLELineOffset;
public:
IntergraphRLEBand( IntergraphDataset *poDS,
int nBand,
int nBandOffset,
int nRGorB = 0);
~IntergraphRLEBand();
virtual CPLErr IReadBlock( int nBlockXOff, int nBlockYOff, void *pImage );
};
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