/* * Copyright (c) 1999-2000 Image Power, Inc. and the University of *   British Columbia. * Copyright (c) 2001-2002 Michael David Adams. * All rights reserved. */ /* __START_OF_JASPER_LICENSE__ *  * JasPer License Version 2.0 *  * Copyright (c) 2001-2006 Michael David Adams * Copyright (c) 1999-2000 Image Power, Inc. * Copyright (c) 1999-2000 The University of British Columbia *  * All rights reserved. *  * Permission is hereby granted, free of charge, to any person (the * "User") 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, 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: *  * 1.  The above copyright notices and this permission notice (which * includes the disclaimer below) shall be included in all copies or * substantial portions of the Software. *  * 2.  The name of a copyright holder shall not be used to endorse or * promote products derived from the Software without specific prior * written permission. *  * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS * LICENSE.  NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER * THIS DISCLAIMER.  THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS * "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 OF THIRD PARTY RIGHTS.  IN NO * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.  NO ASSURANCES ARE * PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE * THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY. * EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS * BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL * PROPERTY RIGHTS OR OTHERWISE.  AS A CONDITION TO EXERCISING THE RIGHTS * GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE * ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY.  THE SOFTWARE * IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL * SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES, * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL * SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH * THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH, * PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH * RISK ACTIVITIES").  THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY * EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. *  * __END_OF_JASPER_LICENSE__ */ /* * JPEG-2000 Code Stream Library * * $Id$ */ #ifndef JPC_CS_H#define JPC_CS_H /******************************************************************************\* Includes.\******************************************************************************/ #include "jasper/jas_stream.h" /******************************************************************************\* Constants and Types.\******************************************************************************/ /* The maximum number of resolution levels. */#define	JPC_MAXRLVLS	33 /* The maximum number of bands. */#define	JPC_MAXBANDS	(3 * JPC_MAXRLVLS + 1) /* The maximum number of layers. */#define JPC_MAXLYRS	16384 /**************************************\* Code stream.\**************************************/ /* * Code stream states. */ /* Initial. */#define	JPC_CS_INIT	0/* Main header. */#define	JPC_CS_MHDR	1/* Tile-part header. */#define	JPC_CS_THDR	2/* Main trailer. */#define	JPC_CS_MTLR	3/* Tile-part data. */#define	JPC_CS_TDATA	4 /* * Unfortunately, the code stream syntax was not designed in such a way that * any given marker segment can be correctly decoded without additional state * derived from previously decoded marker segments. * For example, a RGN/COC/QCC marker segment cannot be decoded unless the * number of components is known. */ /* * Code stream state information. */ typedef struct { 	/* The number of components. */	uint_fast16_t numcomps; } jpc_cstate_t; /**************************************\* SOT marker segment parameters.\**************************************/ typedef struct { 	/* The tile number. */	uint_fast16_t tileno; 	/* The combined length of the marker segment and its auxilary data	  (i.e., packet data). */	uint_fast32_t len; 	/* The tile-part instance. */	uint_fast8_t partno; 	/* The number of tile-parts. */	uint_fast8_t numparts; } jpc_sot_t; /**************************************\* SIZ marker segment parameters.\**************************************/ /* Per component information. */ typedef struct { 	/* The precision of the samples. */	uint_fast8_t prec; 	/* The signedness of the samples. */	uint_fast8_t sgnd; 	/* The horizontal separation of samples with respect to the reference	  grid. */	uint_fast8_t hsamp; 	/* The vertical separation of samples with respect to the reference	  grid. */	uint_fast8_t vsamp; } jpc_sizcomp_t; /* SIZ marker segment parameters. */ typedef struct { 	/* The code stream capabilities. */	uint_fast16_t caps; 	/* The width of the image in units of the reference grid. */	uint_fast32_t width; 	/* The height of the image in units of the reference grid. */	uint_fast32_t height; 	/* The horizontal offset from the origin of the reference grid to the	  left side of the image area. */	uint_fast32_t xoff; 	/* The vertical offset from the origin of the reference grid to the	  top side of the image area. */	uint_fast32_t yoff; 	/* The nominal width of a tile in units of the reference grid. */	uint_fast32_t tilewidth; 	/* The nominal height of a tile in units of the reference grid. */	uint_fast32_t tileheight; 	/* The horizontal offset from the origin of the reference grid to the	  left side of the first tile. */	uint_fast32_t tilexoff; 	/* The vertical offset from the origin of the reference grid to the	  top side of the first tile. */	uint_fast32_t tileyoff; 	/* The number of components. */	uint_fast16_t numcomps; 	/* The per-component information. */	jpc_sizcomp_t *comps; } jpc_siz_t; /**************************************\* COD marker segment parameters.\**************************************/ /* * Coding style constants. */ /* Precincts may be used. */#define	JPC_COX_PRT	0x01/* SOP marker segments may be used. */#define	JPC_COD_SOP	0x02/* EPH marker segments may be used. */#define	JPC_COD_EPH	0x04 /* * Progression order constants. */ /* Layer-resolution-component-precinct progressive  (i.e., progressive by fidelity). */#define	JPC_COD_LRCPPRG	0/* Resolution-layer-component-precinct progressive  (i.e., progressive by resolution). */#define	JPC_COD_RLCPPRG	1/* Resolution-precinct-component-layer progressive. */#define	JPC_COD_RPCLPRG	2/* Precinct-component-resolution-layer progressive. */#define	JPC_COD_PCRLPRG	3/* Component-position-resolution-layer progressive. */#define	JPC_COD_CPRLPRG	4 /* * Code block style constants. */ #define	JPC_COX_LAZY	0x01 /* Selective arithmetic coding bypass. */#define	JPC_COX_RESET	0x02 /* Reset context probabilities. */#define	JPC_COX_TERMALL	0x04 /* Terminate all coding passes. */#define	JPC_COX_VSC		0x08 /* Vertical stripe causal context formation. */#define	JPC_COX_PTERM	0x10 /* Predictable termination. */#define	JPC_COX_SEGSYM	0x20 /* Use segmentation symbols. */ /* Transform constants. */#define	JPC_COX_INS	0x00 /* Irreversible 9/7. */#define	JPC_COX_RFT	0x01 /* Reversible 5/3. */ /* Multicomponent transform constants. */#define	JPC_COD_NOMCT	0x00 /* No multicomponent transform. */#define	JPC_COD_MCT		0x01 /* Multicomponent transform. */ /* Get the code block size value from the code block size exponent. */JAS_ATTRIBUTE_CONSTstatic inline unsigned JPC_COX_CBLKSIZEEXPN(unsigned x){	return x - 2;} /* Get the code block size exponent from the code block size value. */JAS_ATTRIBUTE_CONSTstatic inline unsigned JPC_COX_GETCBLKSIZEEXPN(unsigned x){	return x + 2;} /* Per resolution-level information. */ typedef struct { 	/* The packet partition width. */	uint_fast8_t parwidthval; 	/* The packet partition height. */	uint_fast8_t parheightval; } jpc_coxrlvl_t; /* Per component information. */ typedef struct { 	/* The coding style. */	uint_fast8_t csty; 	/* The number of decomposition levels. */	uint_fast8_t numdlvls; 	/* The nominal code block width specifier. */	uint_fast8_t cblkwidthval; 	/* The nominal code block height specifier. */	uint_fast8_t cblkheightval; 	/* The style of coding passes. */	uint_fast8_t cblksty; 	/* The QMFB employed. */	uint_fast8_t qmfbid; 	/* The number of resolution levels. */	int numrlvls; 	/* The per-resolution-level information. */	jpc_coxrlvl_t rlvls[JPC_MAXRLVLS]; } jpc_coxcp_t; /* COD marker segment parameters. */ typedef struct { 	/* The general coding style. */	uint_fast8_t csty; 	/* The progression order. */	uint_fast8_t prg; 	/* The number of layers. */	uint_fast16_t numlyrs; 	/* The multicomponent transform. */	uint_fast8_t mctrans; 	/* Component-related parameters. */	jpc_coxcp_t compparms; } jpc_cod_t; /* COC marker segment parameters. */ typedef struct { 	/* The component number. */	uint_fast16_t compno; 	/* Component-related parameters. */	jpc_coxcp_t compparms; } jpc_coc_t; /**************************************\* RGN marker segment parameters.\**************************************/ /* The maxshift ROI style. */#define	JPC_RGN_MAXSHIFT	0x00 typedef struct { 	/* The component to which the marker applies. */	uint_fast16_t compno; 	/* The ROI style. */	uint_fast8_t roisty; 	/* The ROI shift value. */	uint_fast8_t roishift; } jpc_rgn_t; /**************************************\* QCD/QCC marker segment parameters.\**************************************/ /* * Quantization style constants. */ #define	JPC_QCX_NOQNT	0 /* No quantization. */#define	JPC_QCX_SIQNT	1 /* Scalar quantization, implicit. */#define	JPC_QCX_SEQNT	2 /* Scalar quantization, explicit. */ /* * Stepsize manipulation macros. */ JAS_ATTRIBUTE_CONSTstatic inline unsigned JPC_QCX_GETEXPN(unsigned x){	return x >> 11;} JAS_ATTRIBUTE_CONSTstatic inline unsigned JPC_QCX_GETMANT(unsigned x){	return x & 0x7ff;} JAS_ATTRIBUTE_CONSTstatic inline uint_fast16_t JPC_QCX_EXPN(unsigned x){	assert(!(x & (~0x1f))); 	return (x & 0x1f) << 11;} JAS_ATTRIBUTE_CONSTstatic inline uint_fast16_t JPC_QCX_MANT(unsigned x){	assert(!(x & (~0x7ff))); 	return x & 0x7ff;} /* Per component information. */ typedef struct { 	/* The quantization style. */	uint_fast8_t qntsty; 	/* The number of step sizes. */	int numstepsizes; 	/* The step sizes. */	uint_fast16_t *stepsizes; 	/* The number of guard bits. */	uint_fast8_t numguard; } jpc_qcxcp_t; /* QCC marker segment parameters. */ typedef struct { 	/* The component associated with this marker segment. */	uint_fast16_t compno; 	/* The parameters. */	jpc_qcxcp_t compparms; } jpc_qcc_t; /* QCD marker segment parameters. */ typedef struct { 	/* The parameters. */	jpc_qcxcp_t compparms; } jpc_qcd_t; /**************************************\* POD marker segment parameters.\**************************************/ typedef struct { 	/* The progression order. */	uint_fast8_t prgord; 	/* The lower bound (inclusive) on the resolution level for the	  progression order volume. */	uint_fast8_t rlvlnostart; 	/* The upper bound (exclusive) on the resolution level for the	  progression order volume. */	uint_fast8_t rlvlnoend; 	/* The lower bound (inclusive) on the component for the progression	  order volume. */	uint_fast16_t compnostart; 	/* The upper bound (exclusive) on the component for the progression	  order volume. */	uint_fast16_t compnoend; 	/* The upper bound (exclusive) on the layer for the progression	  order volume. */	uint_fast16_t lyrnoend; } jpc_pocpchg_t; /* An alias for the above type. */typedef jpc_pocpchg_t jpc_pchg_t; /* POC marker segment parameters. */ typedef struct { 	/* The number of progression order changes. */	int numpchgs;

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