/********************************************************
** Copyright 2004 Earth Resource Mapping Ltd.
** This document contains proprietary source code of
** Earth Resource Mapping Ltd, and can only be used under
** one of the three licenses as described in the 
** license.txt file supplied with this distribution. 
** See separate license.txt file for license details 
** and conditions.
**
** This software is covered by US patent #6,442,298,
** #6,102,897 and #6,633,688.  Rights to use these patents 
** is included in the license agreements.
**
** FILE:     $Archive: /NCS/Source/include/NCSGeoTIFFBoxUtil.h $
** CREATED:  12/07/2004 3:27:34 PM
** AUTHOR:   Tom Lynch
** PURPOSE:  Static GeoTIFF file values for JPEG 2000 GeoTIFF UUID Box (GeoJP2)
**			 GeoTIFF related #defines
**			 Utility CNCSAffineTransform class definition
** EDITS:    [xx]	ddMmmyy	NAME	COMMENTS
**			 [01]	08Jul04	tfl		Changes to write GeoJP2 headers correctly	 
**			 [02]   03Aug04 tfl	    More GeoTIFF Box header changes
**			 [03]	22Nov04 tfl		Added photometric interpretation tag to GeoJP2 data to fix ERDAS load
 *******************************************************/

#ifndef NCSGEOTIFFBOXUTIL_H
#define NCSGEOTIFFBOXUTIL_H

#define	TIFF_BIGENDIAN_CODE		0x4949	//Two byte TIFF header codes flagging endianness
#define TIFF_LITTLEENDIAN_CODE	0x4d4d	
#define TIFF_IDENTITY_CODE		0x2a	//Further magic number identifying file as a TIFF (42)

#ifndef NCSECWCLIENT_H
#include "NCSECWClient.h" //For NCSFileViewFileInfoEx
#endif
#ifndef NCSJP2FILE_H
#include "NCSJP2File.h" //For TIFFTag
#endif

#ifndef ECW_MAX_PROJECTION_LEN
#define ECW_MAX_PROJECTION_LEN 16
#endif

class CNCSAffineTransform 
{

public:
	IEEE8 fScaleX;
	IEEE8 fScaleY;
	IEEE8 fRotX;
	IEEE8 fRotY;
	IEEE8 fTransX;
	IEEE8 fTransY;
	
	CNCSAffineTransform();
	CNCSAffineTransform(IEEE4 fPrecision);
	~CNCSAffineTransform();

	BOOLEAN GetFromFileInfoEx(NCSFileViewFileInfoEx &FileInfo);
	BOOLEAN GetFromFileInfo(NCSFileViewFileInfo &FileInfo);
	BOOLEAN GetFromGeoTIFFModelTransformationTag(CNCSJP2File::CNCSJP2PCSBox::TIFFTag *pTransformTag);
	BOOLEAN PopulateFileInfoEx(NCSFileViewFileInfoEx &FileInfo);
	BOOLEAN PopulateFileInfo(NCSFileViewFileInfo &FileInfo);
	BOOLEAN IsValid();
private:
	void Standardize();
	IEEE4 m_fPrecision;
};

//This static array contains most of the default byte values in the GeoTIFF box
static UINT8 GeoTIFFInitialData[] = 
{	
					0xb1,0x4b,0xf8,0xbd,0x8,0x3d,0x4b,0x43,0xa5,0xae,0x8c,0xd7,0xd5,0xa6,0xce,0x3,//UUID
					
					//GeoTIFF file header
					0x49,0x49,//TIFF_BIGENDIAN_CODE (little-endian in accordance with GeoJP2 spec)
					0x2a,0x00,//TIFF_IDENTITY_CODE	(42 little-endian)	
					0x08,0x00,0x00,0x00,//Offset of first IFD (8 bytes so follows on immediately)

					//First IFD
					0x0c,0x00,//0x0b == 10 IFD entries

					//Entry 0
					0x00,0x01,//TIFF tag value == 256, image width
					0x03,0x00,//Type of field == 3, UINT16 
					0x01,0x00,0x00,0x00,//Only one such value					
					0x01,0x00,0x00,0x00,//Width is 1
					
					//Entry 1
					0x01,0x01,//TIFF tag value == 257, image height (otherwise same as above)
					0x03,0x00,
					0x01,0x00,0x00,0x00,
					0x01,0x00,0x00,0x00,
					
					//Entry 2
					0x02,0x01,//TIFF tag value == 258, bits per sample 
					0x03,0x00,//Type is UINT16 again
					0x01,0x00,0x00,0x00,
					0x08,0x00,0x00,0x00,//8 bits for our single pixel
					
					//Entry 3
					0x03,0x01,//TIFF tag value == 259, compression technique
					0x03,0x00,
					0x01,0x00,0x00,0x00,
					0x01,0x00,0x00,0x00,//no compression used

					//Entry 4
					0x06,0x01,		//Photometric Interpretation [03]
					0x03,0x00, 		//Type is SHORT
					0x01,0x00,0x00,0x00,
					0x01,0x00,0x00,0x00, 	//value 0x01 == BlackIsZero

					//Entry 5
					0x11,0x01,//TIFF tag value == 273, strip offsets
					0x04,0x00,//Type is UINT32 (TIFF_LONG)
					0x01,0x00,0x00,0x00,
					0x00,0x00,0x00,0x00,

					//Entry 6
					0x15,0x01,//TIFF tag value == 277, samples per pixel
					0x03,0x00,
					0x01,0x00,0x00,0x00,
					0x01,0x00,0x00,0x00,
					
					//Entry 7
					0x17,0x01,//TIFF tag value == 279, strip byte count 
					0x04,0x00,
					0x01,0x00,0x00,0x00,
					0x00,0x00,0x00,0x00,
					
					//Entry 8
					0x1c,0x01,//TIFF tag value == 284, storage organisation 
					0x03,0x00,
					0x01,0x00,0x00,0x00,
					0x01,0x00,0x00,0x00, //single contiguous image plane
					
					/*//Entry 8
					0x0e,0x83,//TIFF tag value == 33550, ModelPixelScaleTag
					0x0c,0x00,//Data type TIFF_DOUBLE, 64-bit floating point (IEEE8)
					0x03,0x00,0x00,0x00,//3 such values
					0x92,0x00,0x00,0x00,//value offset
					
					//Entry 9
					0x82,0x84,//TIFF tag value == 33922, ModelTiePointTag
					0x0c,0x00,//IEEE8 data type
					0x06,0x00,0x00,0x00,//6 values representing (XYZ)<-->(IJK)
					0xaa,0x00,0x00,0x00,//offset to values
					
					//Entry 10
					0xaf,0x87,//TIFF tag value == 34735, GeoKeyDirectoryTag
					0x03,0x00,
					0x10,0x00,0x00,0x00,//16 values
					0xda,0x00,0x00,0x00,
					//End of IFD entries
					
					0x00,0x00,//Presumably this is the pixel value
					
					//Offset here is 0x92 - pixel scale values
					0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
					0x4e,0x40,0x00,0x00,0x00,0x00,0x00,0x00,
					0x4e,0x40,0x00,0x00,0x00,0x00,0x00,0x00,

					//Offset here is 0xaa - tie point values
					0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
					0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
					0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
					0x00,0x00,0x00,0x00,0x00,0x00,0x40,0xe6,
					0x1a,0x41,0x00,0x00,0x00,0x00,0xcc,0x9e,
					0x4c,0x41,0x00,0x00,0x00,0x00,0x00,0x00,
					
					//Offset here is 0xda - GeoKeyDirectoryTag values
					0x00,0x00,
					0x01,0x00,
					0x01,0x00,
					0x00,0x00,
					0x03,0x00,
					0x00,0x04,
					0x00,0x00,
					0x01,0x00,
					0x01,0x00,
					0x01,0x04,
					0x00,0x00,
					0x01,0x00,
					0x01,0x00,
					0x00,0x0c,
					0x00,0x00,
					0x01,0x00,
					0x57,0x68*/
 };

#endif