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Diffstat (limited to 'converter/other/jpeg2000/libjasper/jpc/jpc_t1cod.c')
| -rw-r--r-- | converter/other/jpeg2000/libjasper/jpc/jpc_t1cod.c | 537 |
1 files changed, 537 insertions, 0 deletions
diff --git a/converter/other/jpeg2000/libjasper/jpc/jpc_t1cod.c b/converter/other/jpeg2000/libjasper/jpc/jpc_t1cod.c new file mode 100644 index 00000000..650cb854 --- /dev/null +++ b/converter/other/jpeg2000/libjasper/jpc/jpc_t1cod.c @@ -0,0 +1,537 @@ +/* + * 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 Software License + * + * IMAGE POWER JPEG-2000 PUBLIC LICENSE + * ************************************ + * + * GRANT: + * + * Permission is hereby granted, free of charge, to any person (the "User") + * obtaining a copy of this software and associated documentation, to deal + * in the JasPer Software without restriction, including without limitation + * the right to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the JasPer Software (in source and binary forms), + * and to permit persons to whom the JasPer Software is furnished to do so, + * provided further that the License Conditions below are met. + * + * License Conditions + * ****************** + * + * A. Redistributions of source code must retain the above copyright notice, + * and this list of conditions, and the following disclaimer. + * + * B. Redistributions in binary form must reproduce the above copyright + * notice, and this list of conditions, and the following disclaimer in + * the documentation and/or other materials provided with the distribution. + * + * C. Neither the name of Image Power, Inc. nor any other contributor + * (including, but not limited to, the University of British Columbia and + * Michael David Adams) may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * D. User agrees that it shall not commence any action against Image Power, + * Inc., the University of British Columbia, Michael David Adams, or any + * other contributors (collectively "Licensors") for infringement of any + * intellectual property rights ("IPR") held by the User in respect of any + * technology that User owns or has a right to license or sublicense and + * which is an element required in order to claim compliance with ISO/IEC + * 15444-1 (i.e., JPEG-2000 Part 1). "IPR" means all intellectual property + * rights worldwide arising under statutory or common law, and whether + * or not perfected, including, without limitation, all (i) patents and + * patent applications owned or licensable by User; (ii) rights associated + * with works of authorship including copyrights, copyright applications, + * copyright registrations, mask work rights, mask work applications, + * mask work registrations; (iii) rights relating to the protection of + * trade secrets and confidential information; (iv) any right analogous + * to those set forth in subsections (i), (ii), or (iii) and any other + * proprietary rights relating to intangible property (other than trademark, + * trade dress, or service mark rights); and (v) divisions, continuations, + * renewals, reissues and extensions of the foregoing (as and to the extent + * applicable) now existing, hereafter filed, issued or acquired. + * + * E. If User commences an infringement action against any Licensor(s) then + * such Licensor(s) shall have the right to terminate User's license and + * all sublicenses that have been granted hereunder by User to other parties. + * + * F. This software is for use only in hardware or software products that + * are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1). No license + * or right to this Software is granted for products that do not comply + * with ISO/IEC 15444-1. The JPEG-2000 Part 1 standard can be purchased + * from the ISO. + * + * THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. + * NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER + * THIS DISCLAIMER. THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND + * CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY + * OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, + * WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE, + * IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING. THOSE INTENDING + * TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE + * OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING + * PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS. + * THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE + * IS WITH THE USER. SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE + * IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY + * OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY + * OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING, + * REPAIR OR CORRECTION. UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, + * WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE + * INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC., + * MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE + * JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO + * THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR + * CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION, + * DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR + * MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF + * SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY + * OF SUCH DAMAGES. THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT + * FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR + * RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING + * FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, + * AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT + * LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE + * JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY + * TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE + * ("HIGH RISK ACTIVITIES"). LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS + * OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. USER WILL NOT + * KNOWINGLY USE, DISTRIBUTE OR RESELL THE JASPER SOFTWARE OR UNDERLYING + * TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS + * CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE + * NOTICE SPECIFIED IN THIS SECTION. + * + * __END_OF_JASPER_LICENSE__ + */ + +/* + * $Id$ + */ + +/******************************************************************************\ +* Includes. +\******************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include <math.h> + +#include "jasper/jas_types.h" +#include "jasper/jas_math.h" + +#include "jpc_bs.h" +#include "jpc_dec.h" +#include "jpc_cs.h" +#include "jpc_mqcod.h" +#include "jpc_t1cod.h" +#include "jpc_tsfb.h" + +double jpc_pow2i(int n); + +/******************************************************************************\ +* Global data. +\******************************************************************************/ + +int jpc_zcctxnolut[4 * 256]; +int jpc_spblut[256]; +int jpc_scctxnolut[256]; +int jpc_magctxnolut[4096]; + +jpc_fix_t jpc_signmsedec[1 << JPC_NMSEDEC_BITS]; +jpc_fix_t jpc_refnmsedec[1 << JPC_NMSEDEC_BITS]; +jpc_fix_t jpc_signmsedec0[1 << JPC_NMSEDEC_BITS]; +jpc_fix_t jpc_refnmsedec0[1 << JPC_NMSEDEC_BITS]; + +jpc_mqctx_t jpc_mqctxs[JPC_NUMCTXS]; + +/******************************************************************************\ +* Code. +\******************************************************************************/ + +int JPC_PASSTYPE(int passno) +{ + int passtype; + switch (passno % 3) { + case 0: + passtype = JPC_CLNPASS; + break; + case 1: + passtype = JPC_SIGPASS; + break; + case 2: + passtype = JPC_REFPASS; + break; + default: + passtype = -1; + assert(0); + break; + } + return passtype; +} + +int JPC_NOMINALGAIN(int qmfbid, int numlvls, int lvlno, int orient) +{ +if (qmfbid == JPC_COX_INS) { + return 0; +} + assert(qmfbid == JPC_COX_RFT); + if (lvlno == 0) { + assert(orient == JPC_TSFB_LL); + return 0; + } else { + switch (orient) { + case JPC_TSFB_LH: + case JPC_TSFB_HL: + return 1; + break; + case JPC_TSFB_HH: + return 2; + break; + } + } + abort(); +} + +/******************************************************************************\ +* Coding pass related functions. +\******************************************************************************/ + +int JPC_SEGTYPE(int passno, int firstpassno, int bypass) +{ + int passtype; + if (bypass) { + passtype = JPC_PASSTYPE(passno); + if (passtype == JPC_CLNPASS) { + return JPC_SEG_MQ; + } + return ((passno < firstpassno + 10) ? JPC_SEG_MQ : JPC_SEG_RAW); + } else { + return JPC_SEG_MQ; + } +} + +int JPC_SEGPASSCNT(int passno, int firstpassno, int numpasses, int bypass, int termall) +{ + int ret; + int passtype; + + if (termall) { + ret = 1; + } else if (bypass) { + if (passno < firstpassno + 10) { + ret = 10 - (passno - firstpassno); + } else { + passtype = JPC_PASSTYPE(passno); + switch (passtype) { + case JPC_SIGPASS: + ret = 2; + break; + case JPC_REFPASS: + ret = 1; + break; + case JPC_CLNPASS: + ret = 1; + break; + default: + ret = -1; + assert(0); + break; + } + } + } else { + ret = JPC_PREC * 3 - 2; + } + ret = JAS_MIN(ret, numpasses - passno); + return ret; +} + +int JPC_ISTERMINATED(int passno, int firstpassno, int numpasses, int termall, + int lazy) +{ + int ret; + int n; + if (passno - firstpassno == numpasses - 1) { + ret = 1; + } else { + n = JPC_SEGPASSCNT(passno, firstpassno, numpasses, lazy, termall); + ret = (n <= 1) ? 1 : 0; + } + + return ret; +} + +/******************************************************************************\ +* Lookup table code. +\******************************************************************************/ + +static void jpc_initmqctxs(void) +{ + jpc_initctxs(jpc_mqctxs); +} + +void jpc_initluts() +{ + int i; + int orient; + int refine; + float u; + float v; + float t; + +/* XXX - hack */ +jpc_initmqctxs(); + + for (orient = 0; orient < 4; ++orient) { + for (i = 0; i < 256; ++i) { + jpc_zcctxnolut[(orient << 8) | i] = jpc_getzcctxno(i, orient); + } + } + + for (i = 0; i < 256; ++i) { + jpc_spblut[i] = jpc_getspb(i << 4); + } + + for (i = 0; i < 256; ++i) { + jpc_scctxnolut[i] = jpc_getscctxno(i << 4); + } + + for (refine = 0; refine < 2; ++refine) { + for (i = 0; i < 2048; ++i) { + jpc_magctxnolut[(refine << 11) + i] = jpc_getmagctxno((refine ? JPC_REFINE : 0) | i); + } + } + + for (i = 0; i < (1 << JPC_NMSEDEC_BITS); ++i) { + t = i * jpc_pow2i(-JPC_NMSEDEC_FRACBITS); + u = t; + v = t - 1.5; + jpc_signmsedec[i] = jpc_dbltofix(floor((u * u - v * v) * jpc_pow2i(JPC_NMSEDEC_FRACBITS) + 0.5) / jpc_pow2i(JPC_NMSEDEC_FRACBITS)); +/* XXX - this calc is not correct */ + jpc_signmsedec0[i] = jpc_dbltofix(floor((u * u) * jpc_pow2i(JPC_NMSEDEC_FRACBITS) + 0.5) / jpc_pow2i(JPC_NMSEDEC_FRACBITS)); + u = t - 1.0; + if (i & (1 << (JPC_NMSEDEC_BITS - 1))) { + v = t - 1.5; + } else { + v = t - 0.5; + } + jpc_refnmsedec[i] = jpc_dbltofix(floor((u * u - v * v) * jpc_pow2i(JPC_NMSEDEC_FRACBITS) + 0.5) / jpc_pow2i(JPC_NMSEDEC_FRACBITS)); +/* XXX - this calc is not correct */ + jpc_refnmsedec0[i] = jpc_dbltofix(floor((u * u) * jpc_pow2i(JPC_NMSEDEC_FRACBITS) + 0.5) / jpc_pow2i(JPC_NMSEDEC_FRACBITS)); + } +} + +jpc_fix_t jpc_getsignmsedec_func(jpc_fix_t x, int bitpos) +{ + jpc_fix_t y; + assert(!(x & (~JAS_ONES(bitpos + 1)))); + y = jpc_getsignmsedec_macro(x, bitpos); + return y; +} + +int jpc_getzcctxno(int f, int orient) +{ + int h; + int v; + int d; + int n; + int t; + int hv; + + /* Avoid compiler warning. */ + n = 0; + + h = ((f & JPC_WSIG) != 0) + ((f & JPC_ESIG) != 0); + v = ((f & JPC_NSIG) != 0) + ((f & JPC_SSIG) != 0); + d = ((f & JPC_NWSIG) != 0) + ((f & JPC_NESIG) != 0) + ((f & JPC_SESIG) != 0) + ((f & JPC_SWSIG) != 0); + switch (orient) { + case JPC_TSFB_HL: + t = h; + h = v; + v = t; + case JPC_TSFB_LL: + case JPC_TSFB_LH: + if (!h) { + if (!v) { + if (!d) { + n = 0; + } else if (d == 1) { + n = 1; + } else { + n = 2; + } + } else if (v == 1) { + n = 3; + } else { + n = 4; + } + } else if (h == 1) { + if (!v) { + if (!d) { + n = 5; + } else { + n = 6; + } + } else { + n = 7; + } + } else { + n = 8; + } + break; + case JPC_TSFB_HH: + hv = h + v; + if (!d) { + if (!hv) { + n = 0; + } else if (hv == 1) { + n = 1; + } else { + n = 2; + } + } else if (d == 1) { + if (!hv) { + n = 3; + } else if (hv == 1) { + n = 4; + } else { + n = 5; + } + } else if (d == 2) { + if (!hv) { + n = 6; + } else { + n = 7; + } + } else { + n = 8; + } + break; + } + assert(n < JPC_NUMZCCTXS); + return JPC_ZCCTXNO + n; +} + +int jpc_getspb(int f) +{ + int hc; + int vc; + int n; + + hc = JAS_MIN(((f & (JPC_ESIG | JPC_ESGN)) == JPC_ESIG) + ((f & (JPC_WSIG | JPC_WSGN)) == JPC_WSIG), 1) - + JAS_MIN(((f & (JPC_ESIG | JPC_ESGN)) == (JPC_ESIG | JPC_ESGN)) + ((f & (JPC_WSIG | JPC_WSGN)) == (JPC_WSIG | JPC_WSGN)), 1); + vc = JAS_MIN(((f & (JPC_NSIG | JPC_NSGN)) == JPC_NSIG) + ((f & (JPC_SSIG | JPC_SSGN)) == JPC_SSIG), 1) - + JAS_MIN(((f & (JPC_NSIG | JPC_NSGN)) == (JPC_NSIG | JPC_NSGN)) + ((f & (JPC_SSIG | JPC_SSGN)) == (JPC_SSIG | JPC_SSGN)), 1); + if (!hc && !vc) { + n = 0; + } else { + n = (!(hc > 0 || (!hc && vc > 0))); + } + return n; +} + +int jpc_getscctxno(int f) +{ + int hc; + int vc; + int n; + + /* Avoid compiler warning. */ + n = 0; + + hc = JAS_MIN(((f & (JPC_ESIG | JPC_ESGN)) == JPC_ESIG) + ((f & (JPC_WSIG | JPC_WSGN)) == JPC_WSIG), + 1) - JAS_MIN(((f & (JPC_ESIG | JPC_ESGN)) == (JPC_ESIG | JPC_ESGN)) + + ((f & (JPC_WSIG | JPC_WSGN)) == (JPC_WSIG | JPC_WSGN)), 1); + vc = JAS_MIN(((f & (JPC_NSIG | JPC_NSGN)) == JPC_NSIG) + ((f & (JPC_SSIG | JPC_SSGN)) == JPC_SSIG), + 1) - JAS_MIN(((f & (JPC_NSIG | JPC_NSGN)) == (JPC_NSIG | JPC_NSGN)) + + ((f & (JPC_SSIG | JPC_SSGN)) == (JPC_SSIG | JPC_SSGN)), 1); + assert(hc >= -1 && hc <= 1 && vc >= -1 && vc <= 1); + if (hc < 0) { + hc = -hc; + vc = -vc; + } + if (!hc) { + if (vc == -1) { + n = 1; + } else if (!vc) { + n = 0; + } else { + n = 1; + } + } else if (hc == 1) { + if (vc == -1) { + n = 2; + } else if (!vc) { + n = 3; + } else { + n = 4; + } + } + assert(n < JPC_NUMSCCTXS); + return JPC_SCCTXNO + n; +} + +int jpc_getmagctxno(int f) +{ + int n; + + if (!(f & JPC_REFINE)) { + n = (f & (JPC_OTHSIGMSK)) ? 1 : 0; + } else { + n = 2; + } + + assert(n < JPC_NUMMAGCTXS); + return JPC_MAGCTXNO + n; +} + +void jpc_initctxs(jpc_mqctx_t *ctxs) +{ + jpc_mqctx_t *ctx; + int i; + + ctx = ctxs; + for (i = 0; i < JPC_NUMCTXS; ++i) { + ctx->mps = 0; + switch (i) { + case JPC_UCTXNO: + ctx->ind = 46; + break; + case JPC_ZCCTXNO: + ctx->ind = 4; + break; + case JPC_AGGCTXNO: + ctx->ind = 3; + break; + default: + ctx->ind = 0; + break; + } + ++ctx; + } +} + +/* Calculate the real quantity exp2(n), where x is an integer. */ +double jpc_pow2i(int n) +{ + double x; + double a; + + x = 1.0; + if (n < 0) { + a = 0.5; + n = -n; + } else { + a = 2.0; + } + while (--n >= 0) { + x *= a; + } + return x; +} |