mirror of
https://github.com/opencv/opencv.git
synced 2024-11-25 11:40:44 +08:00
296 lines
11 KiB
C
296 lines
11 KiB
C
/*
|
|
* 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__
|
|
*/
|
|
|
|
/*
|
|
* $Id: jpc_t1cod.h,v 1.2 2008-05-26 09:40:52 vp153 Exp $
|
|
*/
|
|
|
|
#ifndef JPC_T1COD_H
|
|
#define JPC_T1COD_H
|
|
|
|
/******************************************************************************\
|
|
* Includes.
|
|
\******************************************************************************/
|
|
|
|
#include "jasper/jas_fix.h"
|
|
#include "jasper/jas_math.h"
|
|
|
|
#include "jpc_mqcod.h"
|
|
#include "jpc_tsfb.h"
|
|
|
|
/******************************************************************************\
|
|
* Constants.
|
|
\******************************************************************************/
|
|
|
|
/* The number of bits used to index into various lookup tables. */
|
|
#define JPC_NMSEDEC_BITS 7
|
|
#define JPC_NMSEDEC_FRACBITS (JPC_NMSEDEC_BITS - 1)
|
|
|
|
/*
|
|
* Segment types.
|
|
*/
|
|
|
|
/* Invalid. */
|
|
#define JPC_SEG_INVALID 0
|
|
/* MQ. */
|
|
#define JPC_SEG_MQ 1
|
|
/* Raw. */
|
|
#define JPC_SEG_RAW 2
|
|
|
|
/* The nominal word size. */
|
|
#define JPC_PREC 32
|
|
|
|
/* Tier-1 coding pass types. */
|
|
#define JPC_SIGPASS 0 /* significance */
|
|
#define JPC_REFPASS 1 /* refinement */
|
|
#define JPC_CLNPASS 2 /* cleanup */
|
|
|
|
/*
|
|
* Per-sample state information for tier-1 coding.
|
|
*/
|
|
|
|
/* The northeast neighbour has been found to be significant. */
|
|
#define JPC_NESIG 0x0001
|
|
/* The southeast neighbour has been found to be significant. */
|
|
#define JPC_SESIG 0x0002
|
|
/* The southwest neighbour has been found to be significant. */
|
|
#define JPC_SWSIG 0x0004
|
|
/* The northwest neighbour has been found to be significant. */
|
|
#define JPC_NWSIG 0x0008
|
|
/* The north neighbour has been found to be significant. */
|
|
#define JPC_NSIG 0x0010
|
|
/* The east neighbour has been found to be significant. */
|
|
#define JPC_ESIG 0x0020
|
|
/* The south neighbour has been found to be significant. */
|
|
#define JPC_SSIG 0x0040
|
|
/* The west neighbour has been found to be significant. */
|
|
#define JPC_WSIG 0x0080
|
|
/* The significance mask for 8-connected neighbours. */
|
|
#define JPC_OTHSIGMSK \
|
|
(JPC_NSIG | JPC_NESIG | JPC_ESIG | JPC_SESIG | JPC_SSIG | JPC_SWSIG | JPC_WSIG | JPC_NWSIG)
|
|
/* The significance mask for 4-connected neighbours. */
|
|
#define JPC_PRIMSIGMSK (JPC_NSIG | JPC_ESIG | JPC_SSIG | JPC_WSIG)
|
|
|
|
/* The north neighbour is negative in value. */
|
|
#define JPC_NSGN 0x0100
|
|
/* The east neighbour is negative in value. */
|
|
#define JPC_ESGN 0x0200
|
|
/* The south neighbour is negative in value. */
|
|
#define JPC_SSGN 0x0400
|
|
/* The west neighbour is negative in value. */
|
|
#define JPC_WSGN 0x0800
|
|
/* The sign mask for 4-connected neighbours. */
|
|
#define JPC_SGNMSK (JPC_NSGN | JPC_ESGN | JPC_SSGN | JPC_WSGN)
|
|
|
|
/* This sample has been found to be significant. */
|
|
#define JPC_SIG 0x1000
|
|
/* The sample has been refined. */
|
|
#define JPC_REFINE 0x2000
|
|
/* This sample has been processed during the significance pass. */
|
|
#define JPC_VISIT 0x4000
|
|
|
|
/* The number of aggregation contexts. */
|
|
#define JPC_NUMAGGCTXS 1
|
|
/* The number of zero coding contexts. */
|
|
#define JPC_NUMZCCTXS 9
|
|
/* The number of magnitude contexts. */
|
|
#define JPC_NUMMAGCTXS 3
|
|
/* The number of sign coding contexts. */
|
|
#define JPC_NUMSCCTXS 5
|
|
/* The number of uniform contexts. */
|
|
#define JPC_NUMUCTXS 1
|
|
|
|
/* The context ID for the first aggregation context. */
|
|
#define JPC_AGGCTXNO 0
|
|
/* The context ID for the first zero coding context. */
|
|
#define JPC_ZCCTXNO (JPC_AGGCTXNO + JPC_NUMAGGCTXS)
|
|
/* The context ID for the first magnitude context. */
|
|
#define JPC_MAGCTXNO (JPC_ZCCTXNO + JPC_NUMZCCTXS)
|
|
/* The context ID for the first sign coding context. */
|
|
#define JPC_SCCTXNO (JPC_MAGCTXNO + JPC_NUMMAGCTXS)
|
|
/* The context ID for the first uniform context. */
|
|
#define JPC_UCTXNO (JPC_SCCTXNO + JPC_NUMSCCTXS)
|
|
/* The total number of contexts. */
|
|
#define JPC_NUMCTXS (JPC_UCTXNO + JPC_NUMUCTXS)
|
|
|
|
/******************************************************************************\
|
|
* External data.
|
|
\******************************************************************************/
|
|
|
|
/* These lookup tables are used by various macros/functions. */
|
|
/* Do not access these lookup tables directly. */
|
|
extern int jpc_zcctxnolut[];
|
|
extern int jpc_spblut[];
|
|
extern int jpc_scctxnolut[];
|
|
extern int jpc_magctxnolut[];
|
|
extern jpc_fix_t jpc_refnmsedec[];
|
|
extern jpc_fix_t jpc_signmsedec[];
|
|
extern jpc_fix_t jpc_refnmsedec0[];
|
|
extern jpc_fix_t jpc_signmsedec0[];
|
|
|
|
/* The initial settings for the MQ contexts. */
|
|
extern jpc_mqctx_t jpc_mqctxs[];
|
|
|
|
/******************************************************************************\
|
|
* Functions and macros.
|
|
\******************************************************************************/
|
|
|
|
/* Initialize the MQ contexts. */
|
|
void jpc_initctxs(jpc_mqctx_t *ctxs);
|
|
|
|
/* Get the zero coding context. */
|
|
int jpc_getzcctxno(int f, int orient);
|
|
#define JPC_GETZCCTXNO(f, orient) \
|
|
(jpc_zcctxnolut[((orient) << 8) | ((f) & JPC_OTHSIGMSK)])
|
|
|
|
/* Get the sign prediction bit. */
|
|
int jpc_getspb(int f);
|
|
#define JPC_GETSPB(f) \
|
|
(jpc_spblut[((f) & (JPC_PRIMSIGMSK | JPC_SGNMSK)) >> 4])
|
|
|
|
/* Get the sign coding context. */
|
|
int jpc_getscctxno(int f);
|
|
#define JPC_GETSCCTXNO(f) \
|
|
(jpc_scctxnolut[((f) & (JPC_PRIMSIGMSK | JPC_SGNMSK)) >> 4])
|
|
|
|
/* Get the magnitude context. */
|
|
int jpc_getmagctxno(int f);
|
|
#define JPC_GETMAGCTXNO(f) \
|
|
(jpc_magctxnolut[((f) & JPC_OTHSIGMSK) | ((((f) & JPC_REFINE) != 0) << 11)])
|
|
|
|
/* Get the normalized MSE reduction for significance passes. */
|
|
#define JPC_GETSIGNMSEDEC(x, bitpos) jpc_getsignmsedec_macro(x, bitpos)
|
|
jpc_fix_t jpc_getsignmsedec_func(jpc_fix_t x, int bitpos);
|
|
#define jpc_getsignmsedec_macro(x, bitpos) \
|
|
((bitpos > JPC_NMSEDEC_FRACBITS) ? jpc_signmsedec[JPC_ASR(x, bitpos - JPC_NMSEDEC_FRACBITS) & JAS_ONES(JPC_NMSEDEC_BITS)] : \
|
|
(jpc_signmsedec0[JPC_ASR(x, bitpos - JPC_NMSEDEC_FRACBITS) & JAS_ONES(JPC_NMSEDEC_BITS)]))
|
|
|
|
/* Get the normalized MSE reduction for refinement passes. */
|
|
#define JPC_GETREFNMSEDEC(x, bitpos) jpc_getrefnmsedec_macro(x, bitpos)
|
|
jpc_fix_t jpc_refsignmsedec_func(jpc_fix_t x, int bitpos);
|
|
#define jpc_getrefnmsedec_macro(x, bitpos) \
|
|
((bitpos > JPC_NMSEDEC_FRACBITS) ? jpc_refnmsedec[JPC_ASR(x, bitpos - JPC_NMSEDEC_FRACBITS) & JAS_ONES(JPC_NMSEDEC_BITS)] : \
|
|
(jpc_refnmsedec0[JPC_ASR(x, bitpos - JPC_NMSEDEC_FRACBITS) & JAS_ONES(JPC_NMSEDEC_BITS)]))
|
|
|
|
/* Arithmetic shift right (with ability to shift left also). */
|
|
#define JPC_ASR(x, n) \
|
|
(((n) >= 0) ? ((x) >> (n)) : ((x) << (-(n))))
|
|
|
|
/* Update the per-sample state information. */
|
|
#define JPC_UPDATEFLAGS4(fp, rowstep, s, vcausalflag) \
|
|
{ \
|
|
register jpc_fix_t *np = (fp) - (rowstep); \
|
|
register jpc_fix_t *sp = (fp) + (rowstep); \
|
|
if ((vcausalflag)) { \
|
|
sp[-1] |= JPC_NESIG; \
|
|
sp[1] |= JPC_NWSIG; \
|
|
if (s) { \
|
|
*sp |= JPC_NSIG | JPC_NSGN; \
|
|
(fp)[-1] |= JPC_ESIG | JPC_ESGN; \
|
|
(fp)[1] |= JPC_WSIG | JPC_WSGN; \
|
|
} else { \
|
|
*sp |= JPC_NSIG; \
|
|
(fp)[-1] |= JPC_ESIG; \
|
|
(fp)[1] |= JPC_WSIG; \
|
|
} \
|
|
} else { \
|
|
np[-1] |= JPC_SESIG; \
|
|
np[1] |= JPC_SWSIG; \
|
|
sp[-1] |= JPC_NESIG; \
|
|
sp[1] |= JPC_NWSIG; \
|
|
if (s) { \
|
|
*np |= JPC_SSIG | JPC_SSGN; \
|
|
*sp |= JPC_NSIG | JPC_NSGN; \
|
|
(fp)[-1] |= JPC_ESIG | JPC_ESGN; \
|
|
(fp)[1] |= JPC_WSIG | JPC_WSGN; \
|
|
} else { \
|
|
*np |= JPC_SSIG; \
|
|
*sp |= JPC_NSIG; \
|
|
(fp)[-1] |= JPC_ESIG; \
|
|
(fp)[1] |= JPC_WSIG; \
|
|
} \
|
|
} \
|
|
}
|
|
|
|
/* Initialize the lookup tables used by the codec. */
|
|
void jpc_initluts(void);
|
|
|
|
/* Get the nominal gain associated with a particular band. */
|
|
int JPC_NOMINALGAIN(int qmfbid, int numlvls, int lvlno, int orient);
|
|
|
|
/* Get the coding pass type. */
|
|
int JPC_PASSTYPE(int passno);
|
|
|
|
/* Get the segment type. */
|
|
int JPC_SEGTYPE(int passno, int firstpassno, int bypass);
|
|
|
|
/* Get the number of coding passess in the segment. */
|
|
int JPC_SEGPASSCNT(int passno, int firstpassno, int numpasses, int bypass,
|
|
int termall);
|
|
|
|
/* Is the coding pass terminated? */
|
|
int JPC_ISTERMINATED(int passno, int firstpassno, int numpasses, int termall,
|
|
int lazy);
|
|
|
|
#endif
|