/*
 * The copyright in this software is being made available under the 2-clauses 
 * BSD License, included below. This software may be subject to other third 
 * party and contributor rights, including patent rights, and no such rights
 * are granted under this license.
 *
 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
 * Copyright (c) 2002-2014, Professor Benoit Macq
 * Copyright (c) 2001-2003, David Janssens
 * Copyright (c) 2002-2003, Yannick Verschueren
 * Copyright (c) 2003-2007, Francois-Olivier Devaux 
 * Copyright (c) 2003-2014, Antonin Descampe
 * Copyright (c) 2005, Herve Drolon, FreeImage Team
 * Copyright (c) 2006-2007, Parvatha Elangovan
 * Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
 * Copyright (c) 2010-2011, Kaori Hagihara
 * Copyright (c) 2011-2012, Centre National d'Etudes Spatiales (CNES), France 
 * Copyright (c) 2012, CS Systemes d'Information, France
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions 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.
 *
 * 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 COPYRIGHT OWNER 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.
 */
#ifndef OPENJPEG_H
#define OPENJPEG_H


/* 
==========================================================
   Compiler directives
==========================================================
*/

/*
The inline keyword is supported by C99 but not by C90. 
Most compilers implement their own version of this keyword ... 
*/
#ifndef INLINE
	#if defined(_MSC_VER)
		#define INLINE __forceinline
	#elif defined(__GNUC__)
		#define INLINE __inline__
	#elif defined(__MWERKS__)
		#define INLINE inline
	#else 
		/* add other compilers here ... */
		#define INLINE 
	#endif /* defined(<Compiler>) */
#endif /* INLINE */

/* deprecated attribute */
#ifdef __GNUC__
	#define OPJ_DEPRECATED(func) func __attribute__ ((deprecated))
#elif defined(_MSC_VER)
	#define OPJ_DEPRECATED(func) __declspec(deprecated) func
#else
	#pragma message("WARNING: You need to implement DEPRECATED for this compiler")
	#define OPJ_DEPRECATED(func) func
#endif

// PDFium doesn't need to export any of these methods.
#define OPJ_API
#define OPJ_LOCAL
#define OPJ_CALLCONV

typedef int OPJ_BOOL;
#define OPJ_TRUE 1
#define OPJ_FALSE 0

typedef char          OPJ_CHAR;
typedef float         OPJ_FLOAT32;
typedef double        OPJ_FLOAT64;
typedef unsigned char OPJ_BYTE;

#include "opj_stdint.h"

typedef int8_t   OPJ_INT8;
typedef uint8_t  OPJ_UINT8;
typedef int16_t  OPJ_INT16;
typedef uint16_t OPJ_UINT16;
typedef int32_t  OPJ_INT32;
typedef uint32_t OPJ_UINT32;
typedef int64_t  OPJ_INT64;
typedef uint64_t OPJ_UINT64;

typedef int64_t  OPJ_OFF_T; /* 64-bit file offset type */

#include <stdio.h>
typedef size_t   OPJ_SIZE_T;

/* Avoid compile-time warning because parameter is not used */
#define OPJ_ARG_NOT_USED(x) (void)(x)

/* 
==========================================================
   Useful constant definitions
==========================================================
*/

#define OPJ_PATH_LEN 4096 /**< Maximum allowed size for filenames */

#define OPJ_J2K_MAXRLVLS 33					/**< Number of maximum resolution level authorized */
#define OPJ_J2K_MAXBANDS (3*OPJ_J2K_MAXRLVLS-2)	/**< Number of maximum sub-band linked to number of resolution level */

#define OPJ_J2K_DEFAULT_NB_SEGS				10
#define OPJ_J2K_STREAM_CHUNK_SIZE			0x100000 /** 1 mega by default */
#define OPJ_J2K_DEFAULT_HEADER_SIZE			1000
#define OPJ_J2K_MCC_DEFAULT_NB_RECORDS		10
#define OPJ_J2K_MCT_DEFAULT_NB_RECORDS		10

/* UniPG>> */ /* NOT YET USED IN THE V2 VERSION OF OPENJPEG */
#define JPWL_MAX_NO_TILESPECS	16 /**< Maximum number of tile parts expected by JPWL: increase at your will */
#define JPWL_MAX_NO_PACKSPECS	16 /**< Maximum number of packet parts expected by JPWL: increase at your will */
#define JPWL_MAX_NO_MARKERS	512 /**< Maximum number of JPWL markers: increase at your will */
#define JPWL_PRIVATEINDEX_NAME "jpwl_index_privatefilename" /**< index file name used when JPWL is on */
#define JPWL_EXPECTED_COMPONENTS 3 /**< Expect this number of components, so you'll find better the first EPB */
#define JPWL_MAXIMUM_TILES 8192 /**< Expect this maximum number of tiles, to avoid some crashes */
#define JPWL_MAXIMUM_HAMMING 2 /**< Expect this maximum number of bit errors in marker id's */
#define JPWL_MAXIMUM_EPB_ROOM 65450 /**< Expect this maximum number of bytes for composition of EPBs */
/* <<UniPG */

/**
 * EXPERIMENTAL FOR THE MOMENT
 * Supported options about file information used only in j2k_dump
*/
#define OPJ_IMG_INFO		1	/**< Basic image information provided to the user */
#define OPJ_J2K_MH_INFO		2	/**< Codestream information based only on the main header */
#define OPJ_J2K_TH_INFO		4	/**< Tile information based on the current tile header */
#define OPJ_J2K_TCH_INFO	8	/**< Tile/Component information of all tiles */
#define OPJ_J2K_MH_IND		16	/**< Codestream index based only on the main header */
#define OPJ_J2K_TH_IND		32	/**< Tile index based on the current tile */
/*FIXME #define OPJ_J2K_CSTR_IND	48*/	/**<  */
#define OPJ_JP2_INFO		128	/**< JP2 file information */
#define OPJ_JP2_IND			256	/**< JP2 file index */

/**
 * JPEG 2000 Profiles, see Table A.10 from 15444-1 (updated in various AMD)
 * These values help chosing the RSIZ value for the J2K codestream.
 * The RSIZ value triggers various encoding options, as detailed in Table A.10.
 * If OPJ_PROFILE_PART2 is chosen, it has to be combined with one or more extensions
 * described hereunder.
 *   Example: rsiz = OPJ_PROFILE_PART2 | OPJ_EXTENSION_MCT;
 * For broadcast profiles, the OPJ_PROFILE value has to be combined with the targeted
 * mainlevel (3-0 LSB, value between 0 and 11):
 *   Example: rsiz = OPJ_PROFILE_BC_MULTI | 0x0005; (here mainlevel 5)
 * For IMF profiles, the OPJ_PROFILE value has to be combined with the targeted mainlevel
 * (3-0 LSB, value between 0 and 11) and sublevel (7-4 LSB, value between 0 and 9):
 *   Example: rsiz = OPJ_PROFILE_IMF_2K | 0x0040 | 0x0005; (here main 5 and sublevel 4)
 * */
#define OPJ_PROFILE_NONE        0x0000 /** no profile, conform to 15444-1 */
#define OPJ_PROFILE_0           0x0001 /** Profile 0 as described in 15444-1,Table A.45 */
#define OPJ_PROFILE_1           0x0002 /** Profile 1 as described in 15444-1,Table A.45 */
#define OPJ_PROFILE_PART2       0x8000 /** At least 1 extension defined in 15444-2 (Part-2) */
#define OPJ_PROFILE_CINEMA_2K   0x0003 /** 2K cinema profile defined in 15444-1 AMD1 */
#define OPJ_PROFILE_CINEMA_4K   0x0004 /** 4K cinema profile defined in 15444-1 AMD1 */
#define OPJ_PROFILE_CINEMA_S2K  0x0005 /** Scalable 2K cinema profile defined in 15444-1 AMD2 */
#define OPJ_PROFILE_CINEMA_S4K  0x0006 /** Scalable 4K cinema profile defined in 15444-1 AMD2 */
#define OPJ_PROFILE_CINEMA_LTS  0x0007 /** Long term storage cinema profile defined in 15444-1 AMD2 */
#define OPJ_PROFILE_BC_SINGLE   0x0100 /** Single Tile Broadcast profile defined in 15444-1 AMD3 */
#define OPJ_PROFILE_BC_MULTI    0x0200 /** Multi Tile Broadcast profile defined in 15444-1 AMD3 */
#define OPJ_PROFILE_BC_MULTI_R  0x0300 /** Multi Tile Reversible Broadcast profile defined in 15444-1 AMD3 */
#define OPJ_PROFILE_IMF_2K      0x0400 /** 2K Single Tile Lossy IMF profile defined in 15444-1 AMD 8 */
#define OPJ_PROFILE_IMF_4K      0x0401 /** 4K Single Tile Lossy IMF profile defined in 15444-1 AMD 8 */
#define OPJ_PROFILE_IMF_8K      0x0402 /** 8K Single Tile Lossy IMF profile defined in 15444-1 AMD 8 */
#define OPJ_PROFILE_IMF_2K_R    0x0403 /** 2K Single/Multi Tile Reversible IMF profile defined in 15444-1 AMD 8 */
#define OPJ_PROFILE_IMF_4K_R    0x0800 /** 4K Single/Multi Tile Reversible IMF profile defined in 15444-1 AMD 8 */
#define OPJ_PROFILE_IMF_8K_R    0x0801  /** 8K Single/Multi Tile Reversible IMF profile defined in 15444-1 AMD 8 */

/**
 * JPEG 2000 Part-2 extensions
 * */
#define OPJ_EXTENSION_NONE      0x0000 /** No Part-2 extension */
#define OPJ_EXTENSION_MCT       0x0100  /** Custom MCT support */

/**
 * JPEG 2000 profile macros
 * */
#define OPJ_IS_CINEMA(v)     (((v) >= OPJ_PROFILE_CINEMA_2K)&&((v) <= OPJ_PROFILE_CINEMA_S4K))
#define OPJ_IS_STORAGE(v)    ((v) == OPJ_PROFILE_CINEMA_LTS)
#define OPJ_IS_BROADCAST(v)  (((v) >= OPJ_PROFILE_BC_SINGLE)&&((v) <= ((OPJ_PROFILE_BC_MULTI_R) | (0x000b))))
#define OPJ_IS_IMF(v)        (((v) >= OPJ_PROFILE_IMF_2K)&&((v) <= ((OPJ_PROFILE_IMF_8K_R) | (0x009b))))
#define OPJ_IS_PART2(v)      ((v) & OPJ_PROFILE_PART2)

/**
 * JPEG 2000 codestream and component size limits in cinema profiles
 * */
#define OPJ_CINEMA_24_CS     1302083   	/** Maximum codestream length for 24fps */
#define OPJ_CINEMA_48_CS     651041     /** Maximum codestream length for 48fps */
#define OPJ_CINEMA_24_COMP   1041666    /** Maximum size per color component for 2K & 4K @ 24fps */
#define OPJ_CINEMA_48_COMP   520833		/** Maximum size per color component for 2K @ 48fps */

/* 
==========================================================
   enum definitions
==========================================================
*/

/**
 * DEPRECATED: use RSIZ, OPJ_PROFILE_* and OPJ_EXTENSION_* instead
 * Rsiz Capabilities
 * */
typedef enum RSIZ_CAPABILITIES {
    OPJ_STD_RSIZ = 0,		/** Standard JPEG2000 profile*/
    OPJ_CINEMA2K = 3,		/** Profile name for a 2K image*/
    OPJ_CINEMA4K = 4,		/** Profile name for a 4K image*/
    OPJ_MCT = 0x8100
} OPJ_RSIZ_CAPABILITIES;

/**
 * DEPRECATED: use RSIZ, OPJ_PROFILE_* and OPJ_EXTENSION_* instead
 * Digital cinema operation mode
 * */
typedef enum CINEMA_MODE {
    OPJ_OFF = 0,			/** Not Digital Cinema*/
    OPJ_CINEMA2K_24 = 1,	/** 2K Digital Cinema at 24 fps*/
    OPJ_CINEMA2K_48 = 2,	/** 2K Digital Cinema at 48 fps*/
    OPJ_CINEMA4K_24 = 3		/** 4K Digital Cinema at 24 fps*/
}OPJ_CINEMA_MODE;

/** 
 * Progression order
 * */
typedef enum PROG_ORDER {
	OPJ_PROG_UNKNOWN = -1,	/**< place-holder */
	OPJ_LRCP = 0,			/**< layer-resolution-component-precinct order */
	OPJ_RLCP = 1,			/**< resolution-layer-component-precinct order */
	OPJ_RPCL = 2,			/**< resolution-precinct-component-layer order */
	OPJ_PCRL = 3,			/**< precinct-component-resolution-layer order */
	OPJ_CPRL = 4			/**< component-precinct-resolution-layer order */
} OPJ_PROG_ORDER;

/**
 * Supported image color spaces
*/
typedef enum COLOR_SPACE {
    OPJ_CLRSPC_UNKNOWN = -1,	/**< not supported by the library */
    OPJ_CLRSPC_UNSPECIFIED = 0,	/**< not specified in the codestream */
    OPJ_CLRSPC_SRGB = 1,		/**< sRGB */
    OPJ_CLRSPC_GRAY = 2,		/**< grayscale */
    OPJ_CLRSPC_SYCC = 3,		/**< YUV */
    OPJ_CLRSPC_EYCC = 4,        /**< e-YCC */
    OPJ_CLRSPC_CMYK = 5         /**< CMYK */
} OPJ_COLOR_SPACE;

/**
 * Supported codec
*/
typedef enum CODEC_FORMAT {
	OPJ_CODEC_UNKNOWN = -1,	/**< place-holder */
	OPJ_CODEC_J2K  = 0,		/**< JPEG-2000 codestream : read/write */
	OPJ_CODEC_JPT  = 1,		/**< JPT-stream (JPEG 2000, JPIP) : read only */
    OPJ_CODEC_JP2  = 2,		/**< JP2 file format : read/write */
    OPJ_CODEC_JPP  = 3,		/**< JPP-stream (JPEG 2000, JPIP) : to be coded */
    OPJ_CODEC_JPX  = 4		/**< JPX file format (JPEG 2000 Part-2) : to be coded */
} OPJ_CODEC_FORMAT;


/* 
==========================================================
   event manager typedef definitions
==========================================================
*/

/**
 * Callback function prototype for events
 * @param msg               Event message
 * @param client_data       Client object where will be return the event message 
 * */
typedef void (*opj_msg_callback) (const char *msg, void *client_data);

/* 
==========================================================
   codec typedef definitions
==========================================================
*/

/**
 * Progression order changes
 * 
 */
typedef struct opj_poc {
	/** Resolution num start, Component num start, given by POC */
	OPJ_UINT32 resno0, compno0;
	/** Layer num end,Resolution num end, Component num end, given by POC */
	OPJ_UINT32 layno1, resno1, compno1;
	/** Layer num start,Precinct num start, Precinct num end */
	OPJ_UINT32 layno0, precno0, precno1;
	/** Progression order enum*/
	OPJ_PROG_ORDER prg1,prg;
	/** Progression order string*/
	OPJ_CHAR progorder[5];
	/** Tile number */
	OPJ_UINT32 tile;
	/** Start and end values for Tile width and height*/
	OPJ_INT32 tx0,tx1,ty0,ty1;
	/** Start value, initialised in pi_initialise_encode*/
	OPJ_UINT32 layS, resS, compS, prcS;
	/** End value, initialised in pi_initialise_encode */
	OPJ_UINT32 layE, resE, compE, prcE;
	/** Start and end values of Tile width and height, initialised in pi_initialise_encode*/
	OPJ_UINT32 txS,txE,tyS,tyE,dx,dy;
	/** Temporary values for Tile parts, initialised in pi_create_encode */
	OPJ_UINT32 lay_t, res_t, comp_t, prc_t,tx0_t,ty0_t;
} opj_poc_t;

/**
 * Compression parameters
 * */
typedef struct opj_cparameters {
	/** size of tile: tile_size_on = false (not in argument) or = true (in argument) */
	OPJ_BOOL tile_size_on;
	/** XTOsiz */
	int cp_tx0;
	/** YTOsiz */
	int cp_ty0;
	/** XTsiz */
	int cp_tdx;
	/** YTsiz */
	int cp_tdy;
	/** allocation by rate/distortion */
	int cp_disto_alloc;
	/** allocation by fixed layer */
	int cp_fixed_alloc;
	/** add fixed_quality */
	int cp_fixed_quality;
	/** fixed layer */
	int *cp_matrice;
	/** comment for coding */
	char *cp_comment;
	/** csty : coding style */
	int csty;
	/** progression order (default OPJ_LRCP) */
	OPJ_PROG_ORDER prog_order;
	/** progression order changes */
	opj_poc_t POC[32];
	/** number of progression order changes (POC), default to 0 */
	OPJ_UINT32 numpocs;
	/** number of layers */
	int tcp_numlayers;
    /** rates of layers - might be subsequently limited by the max_cs_size field */
	float tcp_rates[100];
	/** different psnr for successive layers */
	float tcp_distoratio[100];
	/** number of resolutions */
	int numresolution;
	/** initial code block width, default to 64 */
 	int cblockw_init;
	/** initial code block height, default to 64 */
	int cblockh_init;
	/** mode switch (cblk_style) */
	int mode;
	/** 1 : use the irreversible DWT 9-7, 0 : use lossless compression (default) */
	int irreversible;
	/** region of interest: affected component in [0..3], -1 means no ROI */
	int roi_compno;
	/** region of interest: upshift value */
	int roi_shift;
	/* number of precinct size specifications */
	int res_spec;
	/** initial precinct width */
	int prcw_init[OPJ_J2K_MAXRLVLS];
	/** initial precinct height */
	int prch_init[OPJ_J2K_MAXRLVLS];

	/**@name command line encoder parameters (not used inside the library) */
	/*@{*/
	/** input file name */
	char infile[OPJ_PATH_LEN];
	/** output file name */
	char outfile[OPJ_PATH_LEN];
	/** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */
	int index_on;
	/** DEPRECATED. Index generation is now handeld with the opj_encode_with_info() function. Set to NULL */
	char index[OPJ_PATH_LEN];
	/** subimage encoding: origin image offset in x direction */
	int image_offset_x0;
	/** subimage encoding: origin image offset in y direction */
	int image_offset_y0;
	/** subsampling value for dx */
	int subsampling_dx;
	/** subsampling value for dy */
	int subsampling_dy;
	/** input file format 0: PGX, 1: PxM, 2: BMP 3:TIF*/
	int decod_format;
	/** output file format 0: J2K, 1: JP2, 2: JPT */
	int cod_format;
	/*@}*/

/* UniPG>> */ /* NOT YET USED IN THE V2 VERSION OF OPENJPEG */
	/**@name JPWL encoding parameters */
	/*@{*/
	/** enables writing of EPC in MH, thus activating JPWL */
	OPJ_BOOL jpwl_epc_on;
	/** error protection method for MH (0,1,16,32,37-128) */
	int jpwl_hprot_MH;
	/** tile number of header protection specification (>=0) */
	int jpwl_hprot_TPH_tileno[JPWL_MAX_NO_TILESPECS];
	/** error protection methods for TPHs (0,1,16,32,37-128) */
	int jpwl_hprot_TPH[JPWL_MAX_NO_TILESPECS];
	/** tile number of packet protection specification (>=0) */
	int jpwl_pprot_tileno[JPWL_MAX_NO_PACKSPECS];
	/** packet number of packet protection specification (>=0) */
	int jpwl_pprot_packno[JPWL_MAX_NO_PACKSPECS];
	/** error protection methods for packets (0,1,16,32,37-128) */
	int jpwl_pprot[JPWL_MAX_NO_PACKSPECS];
	/** enables writing of ESD, (0=no/1/2 bytes) */
	int jpwl_sens_size;
	/** sensitivity addressing size (0=auto/2/4 bytes) */
	int jpwl_sens_addr;
	/** sensitivity range (0-3) */
	int jpwl_sens_range;
	/** sensitivity method for MH (-1=no,0-7) */
	int jpwl_sens_MH;
	/** tile number of sensitivity specification (>=0) */
	int jpwl_sens_TPH_tileno[JPWL_MAX_NO_TILESPECS];
	/** sensitivity methods for TPHs (-1=no,0-7) */
	int jpwl_sens_TPH[JPWL_MAX_NO_TILESPECS];
	/*@}*/
/* <<UniPG */

    /**
     * DEPRECATED: use RSIZ, OPJ_PROFILE_* and MAX_COMP_SIZE instead
     * Digital Cinema compliance 0-not compliant, 1-compliant
     * */
    OPJ_CINEMA_MODE cp_cinema;
    /**
     * Maximum size (in bytes) for each component.
     * If == 0, component size limitation is not considered
     * */
	int max_comp_size;
    /**
     * DEPRECATED: use RSIZ, OPJ_PROFILE_* and OPJ_EXTENSION_* instead
     * Profile name
     * */
    OPJ_RSIZ_CAPABILITIES cp_rsiz;
	/** Tile part generation*/
	char tp_on;
	/** Flag for Tile part generation*/
	char tp_flag;
	/** MCT (multiple component transform) */
	char tcp_mct;
	/** Enable JPIP indexing*/
	OPJ_BOOL jpip_on;
	/** Naive implementation of MCT restricted to a single reversible array based 
        encoding without offset concerning all the components. */
	void * mct_data;
    /**
     * Maximum size (in bytes) for the whole codestream.
     * If == 0, codestream size limitation is not considered
     * If it does not comply with tcp_rates, max_cs_size prevails
     * and a warning is issued.
     * */
    int max_cs_size;
    /** RSIZ value
        To be used to combine OPJ_PROFILE_*, OPJ_EXTENSION_* and (sub)levels values. */
    OPJ_UINT16 rsiz;
} opj_cparameters_t;  

#define OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG	0x0001

/**
 * Decompression parameters
 * */
typedef struct opj_dparameters {
	/** 
	Set the number of highest resolution levels to be discarded. 
	The image resolution is effectively divided by 2 to the power of the number of discarded levels. 
	The reduce factor is limited by the smallest total number of decomposition levels among tiles.
	if != 0, then original dimension divided by 2^(reduce); 
	if == 0 or not used, image is decoded to the full resolution 
	*/
	OPJ_UINT32 cp_reduce;
	/** 
	Set the maximum number of quality layers to decode. 
	If there are less quality layers than the specified number, all the quality layers are decoded.
	if != 0, then only the first "layer" layers are decoded; 
	if == 0 or not used, all the quality layers are decoded 
	*/
	OPJ_UINT32 cp_layer;

	/**@name command line decoder parameters (not used inside the library) */
	/*@{*/
	/** input file name */
	char infile[OPJ_PATH_LEN];
	/** output file name */
	char outfile[OPJ_PATH_LEN];
	/** input file format 0: J2K, 1: JP2, 2: JPT */
	int decod_format;
	/** output file format 0: PGX, 1: PxM, 2: BMP */
	int cod_format;

	/** Decoding area left boundary */
	OPJ_UINT32 DA_x0;
	/** Decoding area right boundary */
	OPJ_UINT32 DA_x1;
	/** Decoding area up boundary */
	OPJ_UINT32 DA_y0;
	/** Decoding area bottom boundary */
	OPJ_UINT32 DA_y1;
	/** Verbose mode */
	OPJ_BOOL m_verbose;

	/** tile number ot the decoded tile*/
	OPJ_UINT32 tile_index;
	/** Nb of tile to decode */
	OPJ_UINT32 nb_tile_to_decode;

	/*@}*/

/* UniPG>> */ /* NOT YET USED IN THE V2 VERSION OF OPENJPEG */
	/**@name JPWL decoding parameters */
	/*@{*/
	/** activates the JPWL correction capabilities */
	OPJ_BOOL jpwl_correct;
	/** expected number of components */
	int jpwl_exp_comps;
	/** maximum number of tiles */
	int jpwl_max_tiles;
	/*@}*/
/* <<UniPG */

	unsigned int flags;

} opj_dparameters_t;


/**
 * JPEG2000 codec V2.
 * */
typedef void * opj_codec_t;

/* 
==========================================================
   I/O stream typedef definitions
==========================================================
*/

/**
 * Stream open flags.
 * */
/** The stream was opened for reading. */
#define OPJ_STREAM_READ	OPJ_TRUE
/** The stream was opened for writing. */
#define OPJ_STREAM_WRITE OPJ_FALSE

/*
 * Callback function prototype for read function
 */
typedef OPJ_SIZE_T (* opj_stream_read_fn) (void * p_buffer, OPJ_SIZE_T p_nb_bytes, void * p_user_data) ;

/*
 * Callback function prototype for write function
 */
typedef OPJ_SIZE_T (* opj_stream_write_fn) (void * p_buffer, OPJ_SIZE_T p_nb_bytes, void * p_user_data) ;

/*
 * Callback function prototype for skip function
 */
typedef OPJ_OFF_T (* opj_stream_skip_fn) (OPJ_OFF_T p_nb_bytes, void * p_user_data) ;

/*
 * Callback function prototype for seek function
 */
typedef OPJ_BOOL (* opj_stream_seek_fn) (OPJ_OFF_T p_nb_bytes, void * p_user_data) ;

/*
 * Callback function prototype for free user data function
 */
typedef void (* opj_stream_free_user_data_fn) (void * p_user_data) ;

/*
 * JPEG2000 Stream.
 */
typedef void * opj_stream_t;

/* 
==========================================================
   image typedef definitions
==========================================================
*/

/**
 * Defines a single image component
 * */
typedef struct opj_image_comp {
	/** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
	OPJ_UINT32 dx;
	/** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
	OPJ_UINT32 dy;
	/** data width */
	OPJ_UINT32 w;
	/** data height */
	OPJ_UINT32 h;
	/** x component offset compared to the whole image */
	OPJ_UINT32 x0;
	/** y component offset compared to the whole image */
	OPJ_UINT32 y0;
	/** precision */
	OPJ_UINT32 prec;
	/** image depth in bits */
	OPJ_UINT32 bpp;
	/** signed (1) / unsigned (0) */
	OPJ_UINT32 sgnd;
	/** number of decoded resolution */
	OPJ_UINT32 resno_decoded;
	/** number of division by 2 of the out image compared to the original size of image */
	OPJ_UINT32 factor;
	/** image component data */
	OPJ_INT32 *data;
  /** alpha channel */
  OPJ_UINT16 alpha;
} opj_image_comp_t;

/** 
 * Defines image data and characteristics
 * */
typedef struct opj_image {
	/** XOsiz: horizontal offset from the origin of the reference grid to the left side of the image area */
	OPJ_UINT32 x0;
	/** YOsiz: vertical offset from the origin of the reference grid to the top side of the image area */
	OPJ_UINT32 y0;
	/** Xsiz: width of the reference grid */
	OPJ_UINT32 x1;
	/** Ysiz: height of the reference grid */
	OPJ_UINT32 y1;
	/** number of components in the image */
	OPJ_UINT32 numcomps;
	/** color space: sRGB, Greyscale or YUV */
	OPJ_COLOR_SPACE color_space;
	/** image components */
	opj_image_comp_t *comps;
	/** 'restricted' ICC profile */
	OPJ_BYTE *icc_profile_buf;
	/** size of ICC profile */
	OPJ_UINT32 icc_profile_len;
} opj_image_t;


/**
 * Component parameters structure used by the opj_image_create function
 * */
typedef struct opj_image_comptparm {
	/** XRsiz: horizontal separation of a sample of ith component with respect to the reference grid */
	OPJ_UINT32 dx;
	/** YRsiz: vertical separation of a sample of ith component with respect to the reference grid */
	OPJ_UINT32 dy;
	/** data width */
	OPJ_UINT32 w;
	/** data height */
	OPJ_UINT32 h;
	/** x component offset compared to the whole image */
	OPJ_UINT32 x0;
	/** y component offset compared to the whole image */
	OPJ_UINT32 y0;
	/** precision */
	OPJ_UINT32 prec;
	/** image depth in bits */
	OPJ_UINT32 bpp;
	/** signed (1) / unsigned (0) */
	OPJ_UINT32 sgnd;
} opj_image_cmptparm_t;


/* 
==========================================================
   Information on the JPEG 2000 codestream
==========================================================
*/
/* QUITE EXPERIMENTAL FOR THE MOMENT */

/**
 * Index structure : Information concerning a packet inside tile
 * */
typedef struct opj_packet_info {
	/** packet start position (including SOP marker if it exists) */
	OPJ_OFF_T start_pos;
	/** end of packet header position (including EPH marker if it exists)*/
	OPJ_OFF_T end_ph_pos;
	/** packet end position */
	OPJ_OFF_T end_pos;
	/** packet distorsion */
	double disto;
} opj_packet_info_t;


/* UniPG>> */
/**
 * Marker structure
 * */
typedef struct opj_marker_info {
	/** marker type */
	unsigned short int type;
	/** position in codestream */
	OPJ_OFF_T pos;
	/** length, marker val included */
	int len;
} opj_marker_info_t;
/* <<UniPG */

/**
 * Index structure : Information concerning tile-parts
*/
typedef struct opj_tp_info {
	/** start position of tile part */
	int tp_start_pos;
	/** end position of tile part header */
	int tp_end_header;
	/** end position of tile part */
	int tp_end_pos;
	/** start packet of tile part */
	int tp_start_pack;
	/** number of packets of tile part */
	int tp_numpacks;
} opj_tp_info_t;

/**
 * Index structure : information regarding tiles
*/
typedef struct opj_tile_info {
	/** value of thresh for each layer by tile cfr. Marcela   */
	double *thresh;
	/** number of tile */
	int tileno;
	/** start position */
	int start_pos;
	/** end position of the header */
	int end_header;
	/** end position */
	int end_pos;
	/** precinct number for each resolution level (width) */
	int pw[33];
	/** precinct number for each resolution level (height) */
	int ph[33];
	/** precinct size (in power of 2), in X for each resolution level */
	int pdx[33];
	/** precinct size (in power of 2), in Y for each resolution level */
	int pdy[33];
	/** information concerning packets inside tile */
	opj_packet_info_t *packet;
	/** add fixed_quality */
	int numpix;
	/** add fixed_quality */
	double distotile;
  	/** number of markers */
	int marknum;
	/** list of markers */
	opj_marker_info_t *marker;
	/** actual size of markers array */
	int maxmarknum;
	/** number of tile parts */
	int num_tps;
	/** information concerning tile parts */
	opj_tp_info_t *tp;
} opj_tile_info_t;

/**
 * Index structure of the codestream
*/
typedef struct opj_codestream_info {
	/** maximum distortion reduction on the whole image (add for Marcela) */
	double D_max;
	/** packet number */
	int packno;
	/** writing the packet in the index with t2_encode_packets */
	int index_write;
	/** image width */
	int image_w;
	/** image height */
	int image_h;
	/** progression order */
	OPJ_PROG_ORDER prog;
	/** tile size in x */
	int tile_x;
	/** tile size in y */
	int tile_y;
	/** */
	int tile_Ox;
	/** */
	int tile_Oy;
	/** number of tiles in X */
	int tw;
	/** number of tiles in Y */
	int th;
	/** component numbers */
	int numcomps;
	/** number of layer */
	int numlayers;
	/** number of decomposition for each component */
	int *numdecompos;
/* UniPG>> */
	/** number of markers */
	int marknum;
	/** list of markers */
	opj_marker_info_t *marker;
	/** actual size of markers array */
	int maxmarknum;
/* <<UniPG */
	/** main header position */
	int main_head_start;
	/** main header position */
	int main_head_end;
	/** codestream's size */
	int codestream_size;
	/** information regarding tiles inside image */
	opj_tile_info_t *tile;
} opj_codestream_info_t;

/* <----------------------------------------------------------- */
/* new output managment of the codestream information and index */

/**
 * Tile-component coding parameters information
 */
typedef struct opj_tccp_info
{
	/** component index */
	OPJ_UINT32 compno;
	/** coding style */
	OPJ_UINT32 csty;
	/** number of resolutions */
	OPJ_UINT32 numresolutions;
	/** code-blocks width */
	OPJ_UINT32 cblkw;
	/** code-blocks height */
	OPJ_UINT32 cblkh;
	/** code-block coding style */
	OPJ_UINT32 cblksty;
	/** discrete wavelet transform identifier */
	OPJ_UINT32 qmfbid;
	/** quantisation style */
	OPJ_UINT32 qntsty;
	/** stepsizes used for quantization */
	OPJ_UINT32 stepsizes_mant[OPJ_J2K_MAXBANDS];
	/** stepsizes used for quantization */
	OPJ_UINT32 stepsizes_expn[OPJ_J2K_MAXBANDS];
	/** number of guard bits */
	OPJ_UINT32 numgbits;
	/** Region Of Interest shift */
	OPJ_INT32 roishift;
	/** precinct width */
	OPJ_UINT32 prcw[OPJ_J2K_MAXRLVLS];
	/** precinct height */
	OPJ_UINT32 prch[OPJ_J2K_MAXRLVLS];
}
opj_tccp_info_t;

/**
 * Tile coding parameters information
 */
typedef struct opj_tile_v2_info {

	/** number (index) of tile */
	int tileno;
	/** coding style */
	OPJ_UINT32 csty;
	/** progression order */
	OPJ_PROG_ORDER prg;
	/** number of layers */
	OPJ_UINT32 numlayers;
	/** multi-component transform identifier */
	OPJ_UINT32 mct;

	/** information concerning tile component parameters*/
	opj_tccp_info_t *tccp_info;

} opj_tile_info_v2_t;

/**
 * Information structure about the codestream (FIXME should be expand and enhance)
 */
typedef struct opj_codestream_info_v2 {
	/* Tile info */
	/** tile origin in x = XTOsiz */
	OPJ_UINT32 tx0;
	/** tile origin in y = YTOsiz */
	OPJ_UINT32 ty0;
	/** tile size in x = XTsiz */
	OPJ_UINT32 tdx;
	/** tile size in y = YTsiz */
	OPJ_UINT32 tdy;
	/** number of tiles in X */
	OPJ_UINT32 tw;
	/** number of tiles in Y */
	OPJ_UINT32 th;

	/** number of components*/
	OPJ_UINT32 nbcomps;

	/** Default information regarding tiles inside image */
	opj_tile_info_v2_t m_default_tile_info;

	/** information regarding tiles inside image */
	opj_tile_info_v2_t *tile_info; /* FIXME not used for the moment */

} opj_codestream_info_v2_t;


/**
 * Index structure about a tile part
 */
typedef struct opj_tp_index {
	/** start position */
	OPJ_OFF_T start_pos;
	/** end position of the header */
	OPJ_OFF_T end_header;
	/** end position */
	OPJ_OFF_T end_pos;

} opj_tp_index_t;

/**
 * Index structure about a tile
 */
typedef struct opj_tile_index {
	/** tile index */
	OPJ_UINT32 tileno;

	/** number of tile parts */
	OPJ_UINT32 nb_tps;
	/** current nb of tile part (allocated)*/
	OPJ_UINT32 current_nb_tps;
	/** current tile-part index */
	OPJ_UINT32 current_tpsno;
	/** information concerning tile parts */
	opj_tp_index_t *tp_index;

	/* UniPG>> */ /* NOT USED FOR THE MOMENT IN THE V2 VERSION */
		/** number of markers */
		OPJ_UINT32 marknum;
		/** list of markers */
		opj_marker_info_t *marker;
		/** actual size of markers array */
		OPJ_UINT32 maxmarknum;
	/* <<UniPG */

	/** packet number */
	OPJ_UINT32 nb_packet;
	/** information concerning packets inside tile */
	opj_packet_info_t *packet_index;

} opj_tile_index_t;

/**
 * Index structure of the codestream (FIXME should be expand and enhance)
 */
typedef struct opj_codestream_index {
	/** main header start position (SOC position) */
	OPJ_OFF_T main_head_start;
	/** main header end position (first SOT position) */
	OPJ_OFF_T main_head_end;

	/** codestream's size */
	OPJ_UINT64 codestream_size;

/* UniPG>> */ /* NOT USED FOR THE MOMENT IN THE V2 VERSION */
	/** number of markers */
	OPJ_UINT32 marknum;
	/** list of markers */
	opj_marker_info_t *marker;
	/** actual size of markers array */
	OPJ_UINT32 maxmarknum;
/* <<UniPG */

	/** */
	OPJ_UINT32 nb_of_tiles;
	/** */
	opj_tile_index_t *tile_index; /* FIXME not used for the moment */

}opj_codestream_index_t;
/* -----------------------------------------------------------> */

/*
==========================================================
   Metadata from the JP2file
==========================================================
*/

/**
 * Info structure of the JP2 file
 * EXPERIMENTAL FOR THE MOMENT
 */
typedef struct opj_jp2_metadata {
	/** */
	OPJ_INT32	not_used;

} opj_jp2_metadata_t;

/**
 * Index structure of the JP2 file
 * EXPERIMENTAL FOR THE MOMENT
 */
typedef struct opj_jp2_index {
	/** */
	OPJ_INT32	not_used;

} opj_jp2_index_t;


#ifdef __cplusplus
extern "C" {
#endif


/* 
==========================================================
   openjpeg version
==========================================================
*/

/* Get the version of the openjpeg library*/
OPJ_API const char * OPJ_CALLCONV opj_version(void);

/* 
==========================================================
   image functions definitions
==========================================================
*/

/**
 * Create an image
 *
 * @param numcmpts      number of components
 * @param cmptparms     components parameters
 * @param clrspc        image color space
 * @return returns      a new image structure if successful, returns NULL otherwise
 * */
OPJ_API opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);

/**
 * Deallocate any resources associated with an image
 *
 * @param image         image to be destroyed
 */
OPJ_API void OPJ_CALLCONV opj_image_destroy(opj_image_t *image);

/**
 * Creates an image without allocating memory for the image (used in the new version of the library).
 *
 * @param	numcmpts    the number of components
 * @param	cmptparms   the components parameters
 * @param	clrspc      the image color space
 *
 * @return	a new image structure if successful, NULL otherwise.
*/
OPJ_API opj_image_t* OPJ_CALLCONV opj_image_tile_create(OPJ_UINT32 numcmpts, opj_image_cmptparm_t *cmptparms, OPJ_COLOR_SPACE clrspc);

/* 
==========================================================
   stream functions definitions
==========================================================
*/

/**
 * Creates an abstract stream. This function does nothing except allocating memory and initializing the abstract stream.
 *
 * @param	p_is_input		if set to true then the stream will be an input stream, an output stream else.
 *
 * @return	a stream object.
*/
OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_default_create(OPJ_BOOL p_is_input);

/**
 * Creates an abstract stream. This function does nothing except allocating memory and initializing the abstract stream.
 *
 * @param	p_buffer_size  FIXME DOC
 * @param	p_is_input		if set to true then the stream will be an input stream, an output stream else.
 *
 * @return	a stream object.
*/
OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create(OPJ_SIZE_T p_buffer_size, OPJ_BOOL p_is_input);

/**
 * Destroys a stream created by opj_create_stream. This function does NOT close the abstract stream. If needed the user must
 * close its own implementation of the stream.
 *
 * @param	p_stream	the stream to destroy.
 */
OPJ_API void OPJ_CALLCONV opj_stream_destroy(opj_stream_t* p_stream);
 
/**
 * Sets the given function to be used as a read function.
 * @param		p_stream	the stream to modify
 * @param		p_function	the function to use a read function.
*/
OPJ_API void OPJ_CALLCONV opj_stream_set_read_function(opj_stream_t* p_stream, opj_stream_read_fn p_function);

/**
 * Sets the given function to be used as a write function.
 * @param		p_stream	the stream to modify
 * @param		p_function	the function to use a write function.
*/
OPJ_API void OPJ_CALLCONV opj_stream_set_write_function(opj_stream_t* p_stream, opj_stream_write_fn p_function);

/**
 * Sets the given function to be used as a skip function.
 * @param		p_stream	the stream to modify
 * @param		p_function	the function to use a skip function.
*/
OPJ_API void OPJ_CALLCONV opj_stream_set_skip_function(opj_stream_t* p_stream, opj_stream_skip_fn p_function);

/**
 * Sets the given function to be used as a seek function, the stream is then seekable.
 * @param		p_stream	the stream to modify
 * @param		p_function	the function to use a skip function.
*/
OPJ_API void OPJ_CALLCONV opj_stream_set_seek_function(opj_stream_t* p_stream, opj_stream_seek_fn p_function);

/**
 * Sets the given data to be used as a user data for the stream.
 * @param		p_stream	the stream to modify
 * @param		p_data		the data to set.
 * @param		p_function	the function to free p_data when opj_stream_destroy() is called.
*/
OPJ_API void OPJ_CALLCONV opj_stream_set_user_data (opj_stream_t* p_stream, void * p_data, opj_stream_free_user_data_fn p_function);

/**
 * Sets the length of the user data for the stream.
 *
 * @param p_stream    the stream to modify
 * @param data_length length of the user_data.
*/
OPJ_API void OPJ_CALLCONV opj_stream_set_user_data_length(opj_stream_t* p_stream, OPJ_UINT64 data_length);

/**
 * Create a stream from a file identified with its filename with default parameters (helper function)
 * @param fname             the filename of the file to stream
 * @param p_is_read_stream  whether the stream is a read stream (true) or not (false)
*/
OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create_default_file_stream (const char *fname, OPJ_BOOL p_is_read_stream);
 
/** Create a stream from a file identified with its filename with a specific buffer size
 * @param fname             the filename of the file to stream
 * @param p_buffer_size     size of the chunk used to stream
 * @param p_is_read_stream  whether the stream is a read stream (true) or not (false)
*/
OPJ_API opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream (const char *fname,
                                                                     OPJ_SIZE_T p_buffer_size,
                                                                     OPJ_BOOL p_is_read_stream);
 
/* 
==========================================================
   event manager functions definitions
==========================================================
*/
/**
 * Set the info handler use by openjpeg.
 * @param p_codec       the codec previously initialise
 * @param p_callback    the callback function which will be used
 * @param p_user_data   client object where will be returned the message
*/
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_info_handler(opj_codec_t * p_codec, 
                                                   opj_msg_callback p_callback,
                                                   void * p_user_data);
/**
 * Set the warning handler use by openjpeg.
 * @param p_codec       the codec previously initialise
 * @param p_callback    the callback function which will be used
 * @param p_user_data   client object where will be returned the message
*/
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_warning_handler(opj_codec_t * p_codec,
                                                      opj_msg_callback p_callback,
                                                      void * p_user_data);
/**
 * Set the error handler use by openjpeg.
 * @param p_codec       the codec previously initialise
 * @param p_callback    the callback function which will be used
 * @param p_user_data   client object where will be returned the message
*/
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_error_handler(opj_codec_t * p_codec, 
                                                    opj_msg_callback p_callback,
                                                    void * p_user_data);

/* 
==========================================================
   codec functions definitions
==========================================================
*/

/**
 * Creates a J2K/JP2 decompression structure
 * @param format 		Decoder to select
 *
 * @return Returns a handle to a decompressor if successful, returns NULL otherwise
 * */
OPJ_API opj_codec_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT format);

/**
 * Destroy a decompressor handle
 *
 * @param	p_codec			decompressor handle to destroy
 */
OPJ_API void OPJ_CALLCONV opj_destroy_codec(opj_codec_t * p_codec);

/**
 * Read after the codestream if necessary
 * @param	p_codec			the JPEG2000 codec to read.
 * @param	p_stream		the JPEG2000 stream.
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_end_decompress (	opj_codec_t *p_codec,
													opj_stream_t *p_stream);


/**
 * Set decoding parameters to default values
 * @param parameters Decompression parameters
 */
OPJ_API void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters);

/**
 * Setup the decoder with decompression parameters provided by the user and with the message handler
 * provided by the user.
 *
 * @param p_codec 		decompressor handler
 * @param parameters 	decompression parameters
 *
 * @return true			if the decoder is correctly set
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_setup_decoder(opj_codec_t *p_codec,
												opj_dparameters_t *parameters );

/**
 * Decodes an image header.
 *
 * @param	p_stream		the jpeg2000 stream.
 * @param	p_codec			the jpeg2000 codec to read.
 * @param	p_image			the image structure initialized with the characteristics of encoded image.
 *
 * @return true				if the main header of the codestream and the JP2 header is correctly read.
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_read_header (	opj_stream_t *p_stream,
												opj_codec_t *p_codec,
												opj_image_t **p_image);

/**
 * Sets the given area to be decoded. This function should be called right after opj_read_header and before any tile header reading.
 *
 * @param	p_codec			the jpeg2000 codec.
 * @param	p_image         the decoded image previously setted by opj_read_header
 * @param	p_start_x		the left position of the rectangle to decode (in image coordinates).
 * @param	p_end_x			the right position of the rectangle to decode (in image coordinates).
 * @param	p_start_y		the up position of the rectangle to decode (in image coordinates).
 * @param	p_end_y			the bottom position of the rectangle to decode (in image coordinates).
 *
 * @return	true			if the area could be set.
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_decode_area(	opj_codec_t *p_codec,
													opj_image_t* p_image,
													OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
													OPJ_INT32 p_end_x, OPJ_INT32 p_end_y );

/**
 * Decode an image from a JPEG-2000 codestream
 *
 * @param p_decompressor 	decompressor handle
 * @param p_stream			Input buffer stream
 * @param p_image 			the decoded image
 * @return 					true if success, otherwise false
 * */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_decode(   opj_codec_t *p_decompressor,
                                            opj_stream_t *p_stream,
                                            opj_image_t *p_image);

/**
 * Get the decoded tile from the codec
 *
 * @param	p_codec			the jpeg2000 codec.
 * @param	p_stream		input streamm
 * @param	p_image			output image
 * @param	tile_index		index of the tile which will be decode
 *
 * @return					true if success, otherwise false
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_get_decoded_tile(	opj_codec_t *p_codec,
													opj_stream_t *p_stream,
													opj_image_t *p_image,
													OPJ_UINT32 tile_index);

/**
 * Set the resolution factor of the decoded image
 * @param	p_codec			the jpeg2000 codec.
 * @param	res_factor		resolution factor to set
 *
 * @return					true if success, otherwise false
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_decoded_resolution_factor(opj_codec_t *p_codec, OPJ_UINT32 res_factor);

/**
 * Writes a tile with the given data.
 *
 * @param	p_codec		        the jpeg2000 codec.
 * @param	p_tile_index		the index of the tile to write. At the moment, the tiles must be written from 0 to n-1 in sequence.
 * @param	p_data				pointer to the data to write. Data is arranged in sequence, data_comp0, then data_comp1, then ... NO INTERLEAVING should be set.
 * @param	p_data_size			this value os used to make sure the data being written is correct. The size must be equal to the sum for each component of 
 *                              tile_width * tile_height * component_size. component_size can be 1,2 or 4 bytes, depending on the precision of the given component.
 * @param	p_stream			the stream to write data to.
 *
 * @return	true if the data could be written.
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_write_tile (	opj_codec_t *p_codec,
												OPJ_UINT32 p_tile_index,
												OPJ_BYTE * p_data,
												OPJ_UINT32 p_data_size,
												opj_stream_t *p_stream );

/**
 * Reads a tile header. This function is compulsory and allows one to know the size of the tile thta will be decoded.
 * The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
 *
 * @param	p_codec			the jpeg2000 codec.
 * @param	p_tile_index	pointer to a value that will hold the index of the tile being decoded, in case of success.
 * @param	p_data_size		pointer to a value that will hold the maximum size of the decoded data, in case of success. In case
 *							of truncated codestreams, the actual number of bytes decoded may be lower. The computation of the size is the same
 *							as depicted in opj_write_tile.
 * @param	p_tile_x0		pointer to a value that will hold the x0 pos of the tile (in the image).
 * @param	p_tile_y0		pointer to a value that will hold the y0 pos of the tile (in the image).
 * @param	p_tile_x1		pointer to a value that will hold the x1 pos of the tile (in the image).
 * @param	p_tile_y1		pointer to a value that will hold the y1 pos of the tile (in the image).
 * @param	p_nb_comps		pointer to a value that will hold the number of components in the tile.
 * @param	p_should_go_on	pointer to a boolean that will hold the fact that the decoding should go on. In case the
 *							codestream is over at the time of the call, the value will be set to false. The user should then stop
 *							the decoding.
 * @param	p_stream		the stream to decode.
 * @return	true			if the tile header could be decoded. In case the decoding should end, the returned value is still true.
 *							returning false may be the result of a shortage of memory or an internal error.
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_read_tile_header(	opj_codec_t *p_codec,
												opj_stream_t * p_stream,
												OPJ_UINT32 * p_tile_index,
												OPJ_UINT32 * p_data_size,
												OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
												OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
												OPJ_UINT32 * p_nb_comps,
												OPJ_BOOL * p_should_go_on );

/**
 * Reads a tile data. This function is compulsory and allows one to decode tile data. opj_read_tile_header should be called before.
 * The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
 *
 * @param	p_codec			the jpeg2000 codec.
 * @param	p_tile_index	the index of the tile being decoded, this should be the value set by opj_read_tile_header.
 * @param	p_data			pointer to a memory block that will hold the decoded data.
 * @param	p_data_size		size of p_data. p_data_size should be bigger or equal to the value set by opj_read_tile_header.
 * @param	p_stream		the stream to decode.
 *
 * @return	true			if the data could be decoded.
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_decode_tile_data(	opj_codec_t *p_codec,
													OPJ_UINT32 p_tile_index,
													OPJ_BYTE * p_data,
													OPJ_UINT32 p_data_size,
													opj_stream_t *p_stream );

/* COMPRESSION FUNCTIONS*/

/**
 * Creates a J2K/JP2 compression structure
 * @param 	format 		Coder to select
 * @return 				Returns a handle to a compressor if successful, returns NULL otherwise
 */
OPJ_API opj_codec_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT format);

/**
Set encoding parameters to default values, that means : 
<ul>
<li>Lossless
<li>1 tile
<li>Size of precinct : 2^15 x 2^15 (means 1 precinct)
<li>Size of code-block : 64 x 64
<li>Number of resolutions: 6
<li>No SOP marker in the codestream
<li>No EPH marker in the codestream
<li>No sub-sampling in x or y direction
<li>No mode switch activated
<li>Progression order: LRCP
<li>No index file
<li>No ROI upshifted
<li>No offset of the origin of the image
<li>No offset of the origin of the tiles
<li>Reversible DWT 5-3
</ul>
@param parameters Compression parameters
*/
OPJ_API void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters);

/**
 * Setup the encoder parameters using the current image and using user parameters.
 * @param p_codec 		Compressor handle
 * @param parameters 	Compression parameters
 * @param image 		Input filled image
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_setup_encoder(opj_codec_t *p_codec, 
												opj_cparameters_t *parameters, 
												opj_image_t *image);

/**
 * Start to compress the current image.
 * @param p_codec 		Compressor handle
 * @param image 	    Input filled image
 * @param p_stream 		Input stgream
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_start_compress (	opj_codec_t *p_codec,
													opj_image_t * p_image,
													opj_stream_t *p_stream);

/**
 * End to compress the current image.
 * @param p_codec 		Compressor handle
 * @param p_stream 		Input stgream
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_end_compress (opj_codec_t *p_codec,
												opj_stream_t *p_stream);

/**
 * Encode an image into a JPEG-2000 codestream
 * @param p_codec 		compressor handle
 * @param p_stream 		Output buffer stream
 *
 * @return 				Returns true if successful, returns false otherwise
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_encode(opj_codec_t *p_codec,
                                         opj_stream_t *p_stream);
/*
==========================================================
   codec output functions definitions
==========================================================
*/
/* EXPERIMENTAL FUNCTIONS FOR NOW, USED ONLY IN J2K_DUMP*/

/**
Destroy Codestream information after compression or decompression
@param cstr_info Codestream information structure
*/
OPJ_API void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_v2_t **cstr_info);


/**
 * Dump the codec information into the output stream
 *
 * @param	p_codec			the jpeg2000 codec.
 * @param	info_flag		type of information dump.
 * @param	output_stream	output stream where dump the informations get from the codec.
 *
 */
OPJ_API void OPJ_CALLCONV opj_dump_codec(	opj_codec_t *p_codec,
											OPJ_INT32 info_flag,
											FILE* output_stream);

/**
 * Get the codestream information from the codec
 *
 * @param	p_codec			the jpeg2000 codec.
 *
 * @return					a pointer to a codestream information structure.
 *
 */
OPJ_API opj_codestream_info_v2_t* OPJ_CALLCONV opj_get_cstr_info(opj_codec_t *p_codec);

/**
 * Get the codestream index from the codec
 *
 * @param	p_codec			the jpeg2000 codec.
 *
 * @return					a pointer to a codestream index structure.
 *
 */
OPJ_API opj_codestream_index_t * OPJ_CALLCONV opj_get_cstr_index(opj_codec_t *p_codec);

OPJ_API void OPJ_CALLCONV opj_destroy_cstr_index(opj_codestream_index_t **p_cstr_index);


/**
 * Get the JP2 file information from the codec FIXME
 *
 * @param	p_codec			the jpeg2000 codec.
 *
 * @return					a pointer to a JP2 metadata structure.
 *
 */
OPJ_API opj_jp2_metadata_t* OPJ_CALLCONV opj_get_jp2_metadata(opj_codec_t *p_codec);

/**
 * Get the JP2 file index from the codec FIXME
 *
 * @param	p_codec			the jpeg2000 codec.
 *
 * @return					a pointer to a JP2 index structure.
 *
 */
OPJ_API opj_jp2_index_t* OPJ_CALLCONV opj_get_jp2_index(opj_codec_t *p_codec);


/*
==========================================================
   MCT functions
==========================================================
*/

/**
 * Sets the MCT matrix to use.
 *
 * @param	parameters		the parameters to change.
 * @param	pEncodingMatrix	the encoding matrix.
 * @param	p_dc_shift		the dc shift coefficients to use.
 * @param	pNbComp			the number of components of the image.
 *
 * @return	true if the parameters could be set.
 */
OPJ_API OPJ_BOOL OPJ_CALLCONV opj_set_MCT( opj_cparameters_t *parameters,
		                               	   OPJ_FLOAT32 * pEncodingMatrix,
		                               	   OPJ_INT32 * p_dc_shift,
		                               	   OPJ_UINT32 pNbComp);



#ifdef __cplusplus
}
#endif

#endif /* OPENJPEG_H */