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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// Intel License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000, Intel Corporation, all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of Intel Corporation may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#ifndef _GRFMT_TIFF_H_
#define _GRFMT_TIFF_H_
#include "grfmt_base.h"
// native simple TIFF codec
enum TiffCompression
{
TIFF_UNCOMP = 1,
TIFF_HUFFMAN = 2,
TIFF_PACKBITS = 32773
};
enum TiffByteOrder
{
TIFF_ORDER_II = 0x4949,
TIFF_ORDER_MM = 0x4d4d
};
enum TiffTag
{
TIFF_TAG_WIDTH = 256,
TIFF_TAG_HEIGHT = 257,
TIFF_TAG_BITS_PER_SAMPLE = 258,
TIFF_TAG_COMPRESSION = 259,
TIFF_TAG_PHOTOMETRIC = 262,
TIFF_TAG_STRIP_OFFSETS = 273,
TIFF_TAG_STRIP_COUNTS = 279,
TIFF_TAG_SAMPLES_PER_PIXEL = 277,
TIFF_TAG_ROWS_PER_STRIP = 278,
TIFF_TAG_PLANAR_CONFIG = 284,
TIFF_TAG_COLOR_MAP = 320
};
enum TiffFieldType
{
TIFF_TYPE_BYTE = 1,
TIFF_TYPE_SHORT = 3,
TIFF_TYPE_LONG = 4
};
#ifdef HAVE_TIFF
// libtiff based TIFF codec
class GrFmtTiffReader : public GrFmtReader
{
public:
GrFmtTiffReader( const char* filename );
~GrFmtTiffReader();
bool CheckFormat( const char* signature );
bool ReadData( uchar* data, int step, int color );
bool ReadHeader();
void Close();
protected:
void* m_tif;
};
#else
class GrFmtTiffReader : public GrFmtReader
{
public:
GrFmtTiffReader( const char* filename );
~GrFmtTiffReader();
bool CheckFormat( const char* signature );
bool ReadData( uchar* data, int step, int color );
bool ReadHeader();
void Close();
protected:
RLByteStream m_strm;
PaletteEntry m_palette[256];
int m_bpp;
int* m_temp_palette;
int m_max_pal_length;
int* m_offsets;
int m_maxoffsets;
int m_strips;
int m_rows_per_strip;
TiffCompression m_compression;
TiffByteOrder m_byteorder;
int GetWordEx();
int GetDWordEx();
int ReadTable( int offset, int count, TiffFieldType fieldtype,
int*& array, int& arraysize );
};
#endif
// ... and writer
class GrFmtTiffWriter : public GrFmtWriter
{
public:
GrFmtTiffWriter( const char* filename );
~GrFmtTiffWriter();
bool WriteImage( const uchar* data, int step,
int width, int height, int depth, int channels );
protected:
WLByteStream m_strm;
void WriteTag( TiffTag tag, TiffFieldType fieldType,
int count, int value );
};
// TIFF filter factory
class GrFmtTiff : public GrFmtFilterFactory
{
public:
GrFmtTiff();
~GrFmtTiff();
GrFmtReader* NewReader( const char* filename );
GrFmtWriter* NewWriter( const char* filename );
bool CheckSignature( const char* signature );
};
#endif/*_GRFMT_TIFF_H_*/
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