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/*
 * Copyright (c) 2002-2003 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__
 */


#include <assert.h>
#include "jas_config.h"
#include "jas_types.h"
#include "jas_malloc.h"
#include "jas_debug.h"
#include "jas_icc.h"
#include "jas_cm.h"
#include "jas_stream.h"

#include <stdlib.h>
#include <ctype.h>

#define jas_iccputuint8(out, val)       jas_iccputuint(out, 1, val)
#define jas_iccputuint16(out, val)      jas_iccputuint(out, 2, val)
#define jas_iccputsint32(out, val)      jas_iccputsint(out, 4, val)
#define jas_iccputuint32(out, val)      jas_iccputuint(out, 4, val)
#define jas_iccputuint64(out, val)      jas_iccputuint(out, 8, val)

static jas_iccattrval_t *jas_iccattrval_create0(void);

static int jas_iccgetuint(jas_stream_t *in, int n, ulonglong *val);
static int jas_iccgetuint8(jas_stream_t *in, jas_iccuint8_t *val);
static int jas_iccgetuint16(jas_stream_t *in, jas_iccuint16_t *val);
static int jas_iccgetsint32(jas_stream_t *in, jas_iccsint32_t *val);
static int jas_iccgetuint32(jas_stream_t *in, jas_iccuint32_t *val);
static int jas_iccgetuint64(jas_stream_t *in, jas_iccuint64_t *val);
static int jas_iccputuint(jas_stream_t *out, int n, ulonglong val);
static int jas_iccputsint(jas_stream_t *out, int n, longlong val);
static jas_iccprof_t *jas_iccprof_create(void);
static int jas_iccprof_readhdr(jas_stream_t *in, jas_icchdr_t *hdr);
static int jas_iccprof_writehdr(jas_stream_t *out, jas_icchdr_t *hdr);
static int jas_iccprof_gettagtab(jas_stream_t *in, jas_icctagtab_t *tagtab);
static void jas_iccprof_sorttagtab(jas_icctagtab_t *tagtab);
static int jas_iccattrtab_lookup(jas_iccattrtab_t *attrtab, jas_iccuint32_t name);
static jas_iccattrtab_t *jas_iccattrtab_copy(jas_iccattrtab_t *attrtab);
static jas_iccattrvalinfo_t *jas_iccattrvalinfo_lookup(jas_iccsig_t name);
static int jas_iccgettime(jas_stream_t *in, jas_icctime_t *time);
static int jas_iccgetxyz(jas_stream_t *in, jas_iccxyz_t *xyz);
static int jas_icctagtabent_cmp(const void *src, const void *dst);

static void jas_icccurv_destroy(jas_iccattrval_t *attrval);
static int jas_icccurv_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval);
static int jas_icccurv_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_icccurv_getsize(jas_iccattrval_t *attrval);
static int jas_icccurv_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_icccurv_dump(jas_iccattrval_t *attrval, FILE *out);

static void jas_icctxtdesc_destroy(jas_iccattrval_t *attrval);
static int jas_icctxtdesc_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval);
static int jas_icctxtdesc_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_icctxtdesc_getsize(jas_iccattrval_t *attrval);
static int jas_icctxtdesc_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_icctxtdesc_dump(jas_iccattrval_t *attrval, FILE *out);

static void jas_icctxt_destroy(jas_iccattrval_t *attrval);
static int jas_icctxt_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval);
static int jas_icctxt_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_icctxt_getsize(jas_iccattrval_t *attrval);
static int jas_icctxt_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_icctxt_dump(jas_iccattrval_t *attrval, FILE *out);

static int jas_iccxyz_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_iccxyz_getsize(jas_iccattrval_t *attrval);
static int jas_iccxyz_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_iccxyz_dump(jas_iccattrval_t *attrval, FILE *out);

static jas_iccattrtab_t *jas_iccattrtab_create(void);
static void jas_iccattrtab_destroy(jas_iccattrtab_t *tab);
static int jas_iccattrtab_resize(jas_iccattrtab_t *tab, int maxents);
static int jas_iccattrtab_add(jas_iccattrtab_t *attrtab, int i,
  jas_iccuint32_t name, jas_iccattrval_t *val);
static int jas_iccattrtab_replace(jas_iccattrtab_t *attrtab, int i,
  jas_iccuint32_t name, jas_iccattrval_t *val);
static void jas_iccattrtab_delete(jas_iccattrtab_t *attrtab, int i);
static long jas_iccpadtomult(long x, long y);
static int jas_iccattrtab_get(jas_iccattrtab_t *attrtab, int i,
  jas_iccattrname_t *name, jas_iccattrval_t **val);
static int jas_iccprof_puttagtab(jas_stream_t *out, jas_icctagtab_t *tagtab);

static void jas_icclut16_destroy(jas_iccattrval_t *attrval);
static int jas_icclut16_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval);
static int jas_icclut16_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_icclut16_getsize(jas_iccattrval_t *attrval);
static int jas_icclut16_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_icclut16_dump(jas_iccattrval_t *attrval, FILE *out);

static void jas_icclut8_destroy(jas_iccattrval_t *attrval);
static int jas_icclut8_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval);
static int jas_icclut8_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt);
static int jas_icclut8_getsize(jas_iccattrval_t *attrval);
static int jas_icclut8_output(jas_iccattrval_t *attrval, jas_stream_t *out);
static void jas_icclut8_dump(jas_iccattrval_t *attrval, FILE *out);

static int jas_iccputtime(jas_stream_t *out, jas_icctime_t *ctime);
static int jas_iccputxyz(jas_stream_t *out, jas_iccxyz_t *xyz);

static long jas_iccpowi(int x, int n);

static char *jas_iccsigtostr(int sig, char *buf);


jas_iccattrvalinfo_t jas_iccattrvalinfos[] = {
        {JAS_ICC_TYPE_CURV, {jas_icccurv_destroy, jas_icccurv_copy,
          jas_icccurv_input, jas_icccurv_output, jas_icccurv_getsize,
          jas_icccurv_dump}},
        {JAS_ICC_TYPE_XYZ, {0, 0, jas_iccxyz_input, jas_iccxyz_output,
          jas_iccxyz_getsize, jas_iccxyz_dump}},
        {JAS_ICC_TYPE_TXTDESC, {jas_icctxtdesc_destroy,
          jas_icctxtdesc_copy, jas_icctxtdesc_input, jas_icctxtdesc_output,
          jas_icctxtdesc_getsize, jas_icctxtdesc_dump}},
        {JAS_ICC_TYPE_TXT, {jas_icctxt_destroy, jas_icctxt_copy,
          jas_icctxt_input, jas_icctxt_output, jas_icctxt_getsize,
          jas_icctxt_dump}},
        {JAS_ICC_TYPE_LUT8, {jas_icclut8_destroy, jas_icclut8_copy,
          jas_icclut8_input, jas_icclut8_output, jas_icclut8_getsize,
          jas_icclut8_dump}},
        {JAS_ICC_TYPE_LUT16, {jas_icclut16_destroy, jas_icclut16_copy,
          jas_icclut16_input, jas_icclut16_output, jas_icclut16_getsize,
          jas_icclut16_dump}},
        {0, {0, 0, 0, 0, 0, 0}}
};

typedef struct {
        jas_iccuint32_t tag;
        char *name;
} jas_icctaginfo_t;

/******************************************************************************\
* profile class
\******************************************************************************/


static jas_iccprof_t *jas_iccprof_create()
{
        jas_iccprof_t *prof;
        prof = 0;
        if (!(prof = jas_malloc(sizeof(jas_iccprof_t)))) {
                goto error;
        }
        if (!(prof->attrtab = jas_iccattrtab_create()))
                goto error;
        memset(&prof->hdr, 0, sizeof(jas_icchdr_t));
        prof->tagtab.numents = 0;
        prof->tagtab.ents = 0;
        return prof;
error:
        if (prof)
                jas_iccprof_destroy(prof);
        return 0;
}

jas_iccprof_t *jas_iccprof_copy(jas_iccprof_t *prof)
{
        jas_iccprof_t *newprof;
        newprof = 0;
        if (!(newprof = jas_iccprof_create()))
                goto error;
        newprof->hdr = prof->hdr;
        newprof->tagtab.numents = 0;
        newprof->tagtab.ents = 0;
        assert(newprof->attrtab);
        jas_iccattrtab_destroy(newprof->attrtab);
        if (!(newprof->attrtab = jas_iccattrtab_copy(prof->attrtab)))
                goto error;
        return newprof;
error:
        if (newprof)
                jas_iccprof_destroy(newprof);
        return 0;
}

void jas_iccprof_destroy(jas_iccprof_t *prof)
{
        if (prof->attrtab)
                jas_iccattrtab_destroy(prof->attrtab);
        if (prof->tagtab.ents)
                jas_free(prof->tagtab.ents);
        jas_free(prof);
}

void jas_iccprof_dump(jas_iccprof_t *prof, FILE *out)
{
        jas_iccattrtab_dump(prof->attrtab, out);
}

jas_iccprof_t *jas_iccprof_load(jas_stream_t *in)
{
        jas_iccprof_t *prof;
        int numtags;
        long curoff;
        long reloff;
        long prevoff;
        jas_iccsig_t type;
        jas_iccattrval_t *attrval;
        jas_iccattrval_t *prevattrval;
        jas_icctagtabent_t *tagtabent;
        jas_iccattrvalinfo_t *attrvalinfo;
        int i;
        int len;

        prof = 0;
        attrval = 0;

        if (!(prof = jas_iccprof_create())) {
                goto error;
        }

        if (jas_iccprof_readhdr(in, &prof->hdr)) {
                jas_eprintf("cannot get header\n");
                goto error;
        }
        if (jas_iccprof_gettagtab(in, &prof->tagtab)) {
                jas_eprintf("cannot get tab table\n");
                goto error;
        }
        jas_iccprof_sorttagtab(&prof->tagtab);

        numtags = prof->tagtab.numents;
        curoff = JAS_ICC_HDRLEN + 4 + 12 * numtags;
        prevoff = 0;
        prevattrval = 0;
        for (i = 0; i < numtags; ++i) {
                tagtabent = &prof->tagtab.ents[i];
                if (tagtabent->off == JAS_CAST(jas_iccuint32_t, prevoff)) {
                        if (prevattrval) {
                                if (!(attrval = jas_iccattrval_clone(prevattrval)))
                                        goto error;
                                if (jas_iccprof_setattr(prof, tagtabent->tag, attrval))
                                        goto error;
                                jas_iccattrval_destroy(attrval);
                        } else {
#if 0
                                jas_eprintf("warning: skipping unknown tag type\n");
#endif
                        }
                        continue;
                }
                reloff = tagtabent->off - curoff;
                if (reloff > 0) {
                        if (jas_stream_gobble(in, reloff) != reloff)
                                goto error;
                        curoff += reloff;
                } else if (reloff < 0) {
                        /* This should never happen since we read the tagged
                        element data in a single pass. */

                        abort();
                }
                prevoff = curoff;
                if (jas_iccgetuint32(in, &type)) {
                        goto error;
                }
                if (jas_stream_gobble(in, 4) != 4) {
                        goto error;
                }
                curoff += 8;
                if (!(attrvalinfo = jas_iccattrvalinfo_lookup(type))) {
#if 0
                        jas_eprintf("warning: skipping unknown tag type\n");
#endif
                        prevattrval = 0;
                        continue;
                }
                if (!(attrval = jas_iccattrval_create(type))) {
                        goto error;
                }
                len = tagtabent->len - 8;
                if ((*attrval->ops->input)(attrval, in, len)) {
                        goto error;
                }
                curoff += len;
                if (jas_iccprof_setattr(prof, tagtabent->tag, attrval)) {
                        goto error;
                }
                prevattrval = attrval; /* This is correct, but slimey. */
                jas_iccattrval_destroy(attrval);
                attrval = 0;
        }

        return prof;

error:
        if (prof)
                jas_iccprof_destroy(prof);
        if (attrval)
                jas_iccattrval_destroy(attrval);
        return 0;
}

int jas_iccprof_save(jas_iccprof_t *prof, jas_stream_t *out)
{
        long curoff;
        long reloff;
        long newoff;
        int i;
        int j;
        jas_icctagtabent_t *tagtabent;
        jas_icctagtabent_t *sharedtagtabent;
        jas_icctagtabent_t *tmptagtabent;
        jas_iccuint32_t attrname;
        jas_iccattrval_t *attrval;
        jas_icctagtab_t *tagtab;

        tagtab = &prof->tagtab;
        if (!(tagtab->ents = jas_malloc(prof->attrtab->numattrs *
          sizeof(jas_icctagtabent_t))))
                goto error;
        tagtab->numents = prof->attrtab->numattrs;
        curoff = JAS_ICC_HDRLEN + 4 + 12 * tagtab->numents;
        for (i = 0; i < JAS_CAST(int, tagtab->numents); ++i) {
                tagtabent = &tagtab->ents[i];
                if (jas_iccattrtab_get(prof->attrtab, i, &attrname, &attrval))
                        goto error;
                assert(attrval->ops->output);
                tagtabent->tag = attrname;
                tagtabent->data = &attrval->data;
                sharedtagtabent = 0;
                for (j = 0; j < i; ++j) {
                        tmptagtabent = &tagtab->ents[j];
                        if (tagtabent->data == tmptagtabent->data) {
                                sharedtagtabent = tmptagtabent;
                                break;
                        }
                }
                if (sharedtagtabent) {
                        tagtabent->off = sharedtagtabent->off;
                        tagtabent->len = sharedtagtabent->len;
                        tagtabent->first = sharedtagtabent;
                } else {
                        tagtabent->off = curoff;
                        tagtabent->len = (*attrval->ops->getsize)(attrval) + 8;
                        tagtabent->first = 0;
                        if (i < JAS_CAST(int, tagtab->numents - 1)) {
                                curoff = jas_iccpadtomult(curoff + tagtabent->len, 4);
                        } else {
                                curoff += tagtabent->len;
                        }
                }
                jas_iccattrval_destroy(attrval);
        }
        prof->hdr.size = curoff;
        if (jas_iccprof_writehdr(out, &prof->hdr))
                goto error;
        if (jas_iccprof_puttagtab(out, &prof->tagtab))
                goto error;
        curoff = JAS_ICC_HDRLEN + 4 + 12 * tagtab->numents;
        for (i = 0; i < JAS_CAST(int, tagtab->numents);) {
                tagtabent = &tagtab->ents[i];
                assert(curoff == JAS_CAST(long, tagtabent->off));
                if (jas_iccattrtab_get(prof->attrtab, i, &attrname, &attrval))
                        goto error;
                if (jas_iccputuint32(out, attrval->type) || jas_stream_pad(out,
                  4, 0) != 4)
                        goto error;
                if ((*attrval->ops->output)(attrval, out))
                        goto error;
                jas_iccattrval_destroy(attrval);
                curoff += tagtabent->len;
                ++i;
                while (i < JAS_CAST(int, tagtab->numents) &&
                  tagtab->ents[i].first)
                        ++i;
                newoff = (i < JAS_CAST(int, tagtab->numents)) ?
                  tagtab->ents[i].off : prof->hdr.size;
                reloff = newoff - curoff;
                assert(reloff >= 0);
                if (reloff > 0) {
                        if (jas_stream_pad(out, reloff, 0) != reloff)
                                goto error;
                        curoff += reloff;
                }
        }      
        return 0;
error:
        /* XXX - need to free some resources here */
        return -1;
}

static int jas_iccprof_writehdr(jas_stream_t *out, jas_icchdr_t *hdr)
{
        if (jas_iccputuint32(out, hdr->size) ||
          jas_iccputuint32(out, hdr->cmmtype) ||
          jas_iccputuint32(out, hdr->version) ||
          jas_iccputuint32(out, hdr->clas) ||
          jas_iccputuint32(out, hdr->colorspc) ||
          jas_iccputuint32(out, hdr->refcolorspc) ||
          jas_iccputtime(out, &hdr->ctime) ||
          jas_iccputuint32(out, hdr->magic) ||
          jas_iccputuint32(out, hdr->platform) ||
          jas_iccputuint32(out, hdr->flags) ||
          jas_iccputuint32(out, hdr->maker) ||
          jas_iccputuint32(out, hdr->model) ||
          jas_iccputuint64(out, hdr->attr) ||
          jas_iccputuint32(out, hdr->intent) ||
          jas_iccputxyz(out, &hdr->illum) ||
          jas_iccputuint32(out, hdr->creator) ||
          jas_stream_pad(out, 44, 0) != 44)
                return -1;
        return 0;
}

static int jas_iccprof_puttagtab(jas_stream_t *out, jas_icctagtab_t *tagtab)
{
        int i;
        jas_icctagtabent_t *tagtabent;
        if (jas_iccputuint32(out, tagtab->numents))
                goto error;
        for (i = 0; i < JAS_CAST(int, tagtab->numents); ++i) {
                tagtabent = &tagtab->ents[i];
                if (jas_iccputuint32(out, tagtabent->tag) ||
                  jas_iccputuint32(out, tagtabent->off) ||
                  jas_iccputuint32(out, tagtabent->len))
                        goto error;
        }
        return 0;
error:
        return -1;
}

static int jas_iccprof_readhdr(jas_stream_t *in, jas_icchdr_t *hdr)
{
        if (jas_iccgetuint32(in, &hdr->size) ||
          jas_iccgetuint32(in, &hdr->cmmtype) ||
          jas_iccgetuint32(in, &hdr->version) ||
          jas_iccgetuint32(in, &hdr->clas) ||
          jas_iccgetuint32(in, &hdr->colorspc) ||
          jas_iccgetuint32(in, &hdr->refcolorspc) ||
          jas_iccgettime(in, &hdr->ctime) ||
          jas_iccgetuint32(in, &hdr->magic) ||
          jas_iccgetuint32(in, &hdr->platform) ||
          jas_iccgetuint32(in, &hdr->flags) ||
          jas_iccgetuint32(in, &hdr->maker) ||
          jas_iccgetuint32(in, &hdr->model) ||
          jas_iccgetuint64(in, &hdr->attr) ||
          jas_iccgetuint32(in, &hdr->intent) ||
          jas_iccgetxyz(in, &hdr->illum) ||
          jas_iccgetuint32(in, &hdr->creator) ||
          jas_stream_gobble(in, 44) != 44)
                return -1;
        return 0;
}

static int jas_iccprof_gettagtab(jas_stream_t *in, jas_icctagtab_t *tagtab)
{
        int i;
        jas_icctagtabent_t *tagtabent;

        if (tagtab->ents) {
                jas_free(tagtab->ents);
                tagtab->ents = 0;
        }
        if (jas_iccgetuint32(in, &tagtab->numents))
                goto error;
        if (!(tagtab->ents = jas_malloc(tagtab->numents *
          sizeof(jas_icctagtabent_t))))
                goto error;
        tagtabent = tagtab->ents;
        for (i = 0; i < JAS_CAST(long, tagtab->numents); ++i) {
                if (jas_iccgetuint32(in, &tagtabent->tag) ||
                jas_iccgetuint32(in, &tagtabent->off) ||
                jas_iccgetuint32(in, &tagtabent->len))
                        goto error;
                ++tagtabent;
        }
        return 0;
error:
        if (tagtab->ents) {
                jas_free(tagtab->ents);
                tagtab->ents = 0;
        }
        return -1;
}

jas_iccattrval_t *jas_iccprof_getattr(jas_iccprof_t *prof,
  jas_iccattrname_t name)
{
        int i;
        jas_iccattrval_t *attrval;
        if ((i = jas_iccattrtab_lookup(prof->attrtab, name)) < 0)
                goto error;
        if (!(attrval = jas_iccattrval_clone(prof->attrtab->attrs[i].val)))
                goto error;
        return attrval;
error:
        return 0;
}

int jas_iccprof_setattr(jas_iccprof_t *prof, jas_iccattrname_t name,
  jas_iccattrval_t *val)
{
        int i;
        if ((i = jas_iccattrtab_lookup(prof->attrtab, name)) >= 0) {
                if (val) {
                        if (jas_iccattrtab_replace(prof->attrtab, i, name, val))
                                goto error;
                } else {
                        jas_iccattrtab_delete(prof->attrtab, i);
                }
        } else {
                if (val) {
                        if (jas_iccattrtab_add(prof->attrtab, -1, name, val))
                                goto error;
                } else {
                        /* NOP */
                }
        }
        return 0;
error:
        return -1;
}

int jas_iccprof_gethdr(jas_iccprof_t *prof, jas_icchdr_t *hdr)
{
        *hdr = prof->hdr;
        return 0;
}

int jas_iccprof_sethdr(jas_iccprof_t *prof, jas_icchdr_t *hdr)
{
        prof->hdr = *hdr;
        return 0;
}

static void jas_iccprof_sorttagtab(jas_icctagtab_t *tagtab)
{
        qsort(tagtab->ents, tagtab->numents, sizeof(jas_icctagtabent_t),
          jas_icctagtabent_cmp);
}

static int jas_icctagtabent_cmp(const void *src, const void *dst)
{
        jas_icctagtabent_t *srctagtabent = JAS_CAST(jas_icctagtabent_t *, src);
        jas_icctagtabent_t *dsttagtabent = JAS_CAST(jas_icctagtabent_t *, dst);
        if (srctagtabent->off > dsttagtabent->off) {
                return 1;
        } else if (srctagtabent->off < dsttagtabent->off) {
                return -1;
        }
        return 0;
}

static jas_iccattrvalinfo_t *jas_iccattrvalinfo_lookup(jas_iccsig_t type)
{
        jas_iccattrvalinfo_t *info;
        info = jas_iccattrvalinfos;
        for (info = jas_iccattrvalinfos; info->type; ++info) {
                if (info->type == type) {
                        return info;
                }
        }
        return 0;
}

static int jas_iccgettime(jas_stream_t *in, jas_icctime_t *time)
{
        if (jas_iccgetuint16(in, &time->year) ||
          jas_iccgetuint16(in, &time->month) ||
          jas_iccgetuint16(in, &time->day) ||
          jas_iccgetuint16(in, &time->hour) ||
          jas_iccgetuint16(in, &time->min) ||
          jas_iccgetuint16(in, &time->sec)) {
                return -1;
        }
        return 0;
}

static int jas_iccgetxyz(jas_stream_t *in, jas_iccxyz_t *xyz)
{
        if (jas_iccgetsint32(in, &xyz->x) ||
          jas_iccgetsint32(in, &xyz->y) ||
          jas_iccgetsint32(in, &xyz->z)) {
                return -1;
        }
        return 0;
}

static int jas_iccputtime(jas_stream_t *out, jas_icctime_t *time)
{
        jas_iccputuint16(out, time->year);
        jas_iccputuint16(out, time->month);
        jas_iccputuint16(out, time->day);
        jas_iccputuint16(out, time->hour);
        jas_iccputuint16(out, time->min);
        jas_iccputuint16(out, time->sec);
        return 0;
}

static int jas_iccputxyz(jas_stream_t *out, jas_iccxyz_t *xyz)
{
        jas_iccputuint32(out, xyz->x);
        jas_iccputuint32(out, xyz->y);
        jas_iccputuint32(out, xyz->z);
        return 0;
}

/******************************************************************************\
* attribute table class
\******************************************************************************/


static jas_iccattrtab_t *jas_iccattrtab_create()
{
        jas_iccattrtab_t *tab;
        tab = 0;
        if (!(tab = jas_malloc(sizeof(jas_iccattrtab_t))))
                goto error;
        tab->maxattrs = 0;
        tab->numattrs = 0;
        tab->attrs = 0;
        if (jas_iccattrtab_resize(tab, 32))
                goto error;
        return tab;
error:
        if (tab)
                jas_iccattrtab_destroy(tab);
        return 0;
}

static jas_iccattrtab_t *jas_iccattrtab_copy(jas_iccattrtab_t *attrtab)
{
        jas_iccattrtab_t *newattrtab;
        int i;
        if (!(newattrtab = jas_iccattrtab_create()))
                goto error;
        for (i = 0; i < attrtab->numattrs; ++i) {
                if (jas_iccattrtab_add(newattrtab, i, attrtab->attrs[i].name,
                  attrtab->attrs[i].val))
                        goto error;
        }
        return newattrtab;
error:
        return 0;
}

static void jas_iccattrtab_destroy(jas_iccattrtab_t *tab)
{
        if (tab->attrs) {
                while (tab->numattrs > 0) {
                        jas_iccattrtab_delete(tab, 0);
                }
                jas_free(tab->attrs);
        }
        jas_free(tab);
}

void jas_iccattrtab_dump(jas_iccattrtab_t *attrtab, FILE *out)
{
        int i;
        jas_iccattr_t *attr;
        jas_iccattrval_t *attrval;
        jas_iccattrvalinfo_t *info;
        char buf[16];
        fprintf(out, "numattrs=%d\n", attrtab->numattrs);
        fprintf(out, "---\n");
        for (i = 0; i < attrtab->numattrs; ++i) {
                attr = &attrtab->attrs[i];
                attrval = attr->val;
                info = jas_iccattrvalinfo_lookup(attrval->type);
                if (!info) abort();
                fprintf(out, "attrno=%d; attrname=\"%s\"(0x%08x); attrtype=\"%s\"(0x%08x)\n",
                  i,
                  jas_iccsigtostr(attr->name, &buf[0]),
                  attr->name,
                  jas_iccsigtostr(attrval->type, &buf[8]),
                  attrval->type
                  );
                jas_iccattrval_dump(attrval, out);
                fprintf(out, "---\n");
        }
}

static int jas_iccattrtab_resize(jas_iccattrtab_t *tab, int maxents)
{
        jas_iccattr_t *newattrs;
        assert(maxents >= tab->numattrs);
        newattrs = tab->attrs ? jas_realloc(tab->attrs, maxents *
          sizeof(jas_iccattr_t)) : jas_malloc(maxents * sizeof(jas_iccattr_t));
        if (!newattrs)
                return -1;
        tab->attrs = newattrs;
        tab->maxattrs = maxents;
        return 0;
}

static int jas_iccattrtab_add(jas_iccattrtab_t *attrtab, int i,
  jas_iccuint32_t name, jas_iccattrval_t *val)
{
        int n;
        jas_iccattr_t *attr;
        jas_iccattrval_t *tmpattrval;
        tmpattrval = 0;
        if (i < 0) {
                i = attrtab->numattrs;
        }
        assert(i >= 0 && i <= attrtab->numattrs);
        if (attrtab->numattrs >= attrtab->maxattrs) {
                if (jas_iccattrtab_resize(attrtab, attrtab->numattrs + 32)) {
                        goto error;
                }
        }
        if (!(tmpattrval = jas_iccattrval_clone(val)))
                goto error;
        n = attrtab->numattrs - i;
        if (n > 0)
                memmove(&attrtab->attrs[i + 1], &attrtab->attrs[i],
                  n * sizeof(jas_iccattr_t));
        attr = &attrtab->attrs[i];
        attr->name = name;
        attr->val = tmpattrval;
        ++attrtab->numattrs;
        return 0;
error:
        if (tmpattrval)
                jas_iccattrval_destroy(tmpattrval);
        return -1;
}

static int jas_iccattrtab_replace(jas_iccattrtab_t *attrtab, int i,
  jas_iccuint32_t name, jas_iccattrval_t *val)
{
        jas_iccattrval_t *newval;
        jas_iccattr_t *attr;
        if (!(newval = jas_iccattrval_clone(val)))
                goto error;
        attr = &attrtab->attrs[i];
        jas_iccattrval_destroy(attr->val);
        attr->name = name;
        attr->val = newval;
        return 0;
error:
        return -1;
}

static void jas_iccattrtab_delete(jas_iccattrtab_t *attrtab, int i)
{
        int n;
        jas_iccattrval_destroy(attrtab->attrs[i].val);
        if ((n = attrtab->numattrs - i - 1) > 0)
                memmove(&attrtab->attrs[i], &attrtab->attrs[i + 1],
                  n * sizeof(jas_iccattr_t));
        --attrtab->numattrs;
}

static int jas_iccattrtab_get(jas_iccattrtab_t *attrtab, int i,
  jas_iccattrname_t *name, jas_iccattrval_t **val)
{
        jas_iccattr_t *attr;
        if (i < 0 || i >= attrtab->numattrs)
                goto error;
        attr = &attrtab->attrs[i];
        *name = attr->name;
        if (!(*val = jas_iccattrval_clone(attr->val)))
                goto error;
        return 0;
error:
        return -1;
}

static int jas_iccattrtab_lookup(jas_iccattrtab_t *attrtab,
  jas_iccuint32_t name)
{
        int i;
        jas_iccattr_t *attr;
        for (i = 0; i < attrtab->numattrs; ++i) {
                attr = &attrtab->attrs[i];
                if (attr->name == name)
                        return i;
        }
        return -1;
}

/******************************************************************************\
* attribute value class
\******************************************************************************/


jas_iccattrval_t *jas_iccattrval_create(jas_iccuint32_t type)
{
        jas_iccattrval_t *attrval;
        jas_iccattrvalinfo_t *info;

        if (!(info = jas_iccattrvalinfo_lookup(type)))
                goto error;
        if (!(attrval = jas_iccattrval_create0()))
                goto error;
        attrval->ops = &info->ops;
        attrval->type = type;
        ++attrval->refcnt;
        memset(&attrval->data, 0, sizeof(attrval->data));
        return attrval;
error:
        return 0;
}

jas_iccattrval_t *jas_iccattrval_clone(jas_iccattrval_t *attrval)
{
        ++attrval->refcnt;
        return attrval;
}

void jas_iccattrval_destroy(jas_iccattrval_t *attrval)
{
#if 0
fprintf(stderr, "refcnt=%d\n", attrval->refcnt);
#endif
        if (--attrval->refcnt <= 0) {
                if (attrval->ops->destroy)
                        (*attrval->ops->destroy)(attrval);
                jas_free(attrval);
        }
}

void jas_iccattrval_dump(jas_iccattrval_t *attrval, FILE *out)
{
        char buf[8];
        jas_iccsigtostr(attrval->type, buf);
        fprintf(out, "refcnt = %d; type = 0x%08x %s\n", attrval->refcnt,
          attrval->type, jas_iccsigtostr(attrval->type, &buf[0]));
        if (attrval->ops->dump) {
                (*attrval->ops->dump)(attrval, out);
        }
}

int jas_iccattrval_allowmodify(jas_iccattrval_t **attrvalx)
{
        jas_iccattrval_t *newattrval;
        jas_iccattrval_t *attrval = *attrvalx;
        newattrval = 0;
        if (attrval->refcnt > 1) {
                if (!(newattrval = jas_iccattrval_create0()))
                        goto error;
                newattrval->ops = attrval->ops;
                newattrval->type = attrval->type;
                ++newattrval->refcnt;
                if (newattrval->ops->copy) {
                        if ((*newattrval->ops->copy)(newattrval, attrval))
                                goto error;
                } else {
                        memcpy(&newattrval->data, &attrval->data,
                          sizeof(newattrval->data));
                }
                *attrvalx = newattrval;
        }
        return 0;
error:
        if (newattrval) {
                jas_free(newattrval);
        }
        return -1;
}

static jas_iccattrval_t *jas_iccattrval_create0()
{
        jas_iccattrval_t *attrval;
        if (!(attrval = jas_malloc(sizeof(jas_iccattrval_t))))
                return 0;
        memset(attrval, 0, sizeof(jas_iccattrval_t));
        attrval->refcnt = 0;
        attrval->ops = 0;
        attrval->type = 0;
        return attrval;
}

/******************************************************************************\
*
\******************************************************************************/


static int jas_iccxyz_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int len)
{
        if (len != 4 * 3) abort();
        return jas_iccgetxyz(in, &attrval->data.xyz);
}

static int jas_iccxyz_output(jas_iccattrval_t *attrval, jas_stream_t *out)
{
        jas_iccxyz_t *xyz = &attrval->data.xyz;
        if (jas_iccputuint32(out, xyz->x) ||
          jas_iccputuint32(out, xyz->y) ||
          jas_iccputuint32(out, xyz->z))
                return -1;
        return 0;
}

static int jas_iccxyz_getsize(jas_iccattrval_t *attrval)
{
        /* Avoid compiler warnings about unused parameters. */
        attrval = 0;

        return 12;
}

static void jas_iccxyz_dump(jas_iccattrval_t *attrval, FILE *out)
{
        jas_iccxyz_t *xyz = &attrval->data.xyz;
        fprintf(out, "(%f, %f, %f)\n", xyz->x / 65536.0, xyz->y / 65536.0, xyz->z / 65536.0);
}

/******************************************************************************\
* attribute table class
\******************************************************************************/


static void jas_icccurv_destroy(jas_iccattrval_t *attrval)
{
        jas_icccurv_t *curv = &attrval->data.curv;
        if (curv->ents)
                jas_free(curv->ents);
}

static int jas_icccurv_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval)
{
        /* Avoid compiler warnings about unused parameters. */
        attrval = 0;
        othattrval = 0;

        /* Not yet implemented. */
        abort();
        return -1;
}

static int jas_icccurv_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt)
{
        jas_icccurv_t *curv = &attrval->data.curv;
        unsigned int i;

        curv->numents = 0;
        curv->ents = 0;

        if (jas_iccgetuint32(in, &curv->numents))
                goto error;
        if (!(curv->ents = jas_malloc(curv->numents * sizeof(jas_iccuint16_t))))
                goto error;
        for (i = 0; i < curv->numents; ++i) {
                if (jas_iccgetuint16(in, &curv->ents[i]))
                        goto error;
        }

        if (JAS_CAST(int, 4 + 2 * curv->numents) != cnt)
                goto error;
        return 0;

error:
        jas_icccurv_destroy(attrval);
        return -1;
}

static int jas_icccurv_getsize(jas_iccattrval_t *attrval)
{
        jas_icccurv_t *curv = &attrval->data.curv;
        return 4 + 2 * curv->numents;
}

static int jas_icccurv_output(jas_iccattrval_t *attrval, jas_stream_t *out)
{
        jas_icccurv_t *curv = &attrval->data.curv;
        unsigned int i;

        if (jas_iccputuint32(out, curv->numents))
                goto error;
        for (i = 0; i < curv->numents; ++i) {
                if (jas_iccputuint16(out, curv->ents[i]))
                        goto error;
        }
        return 0;
error:
        return -1;
}

static void jas_icccurv_dump(jas_iccattrval_t *attrval, FILE *out)
{
        int i;
        jas_icccurv_t *curv = &attrval->data.curv;
        fprintf(out, "number of entires = %d\n", curv->numents);
        if (curv->numents == 1) {
                fprintf(out, "gamma = %f\n", curv->ents[0] / 256.0);
        } else {
                for (i = 0; i < JAS_CAST(int, curv->numents); ++i) {
                        if (i < 3 || i >= JAS_CAST(int, curv->numents) - 3) {
                                fprintf(out, "entry[%d] = %f\n", i, curv->ents[i] / 65535.0);
                        }
                }
        }
}

/******************************************************************************\
*
\******************************************************************************/


static void jas_icctxtdesc_destroy(jas_iccattrval_t *attrval)
{
        jas_icctxtdesc_t *txtdesc = &attrval->data.txtdesc;
        if (txtdesc->ascdata)
                jas_free(txtdesc->ascdata);
        if (txtdesc->ucdata)
                jas_free(txtdesc->ucdata);
}

static int jas_icctxtdesc_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval)
{
        jas_icctxtdesc_t *txtdesc = &attrval->data.txtdesc;

        /* Avoid compiler warnings about unused parameters. */
        attrval = 0;
        othattrval = 0;
        txtdesc = 0;

        /* Not yet implemented. */
        abort();
        return -1;
}

static int jas_icctxtdesc_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt)
{
        int n;
        int c;
        jas_icctxtdesc_t *txtdesc = &attrval->data.txtdesc;
        txtdesc->ascdata = 0;
        txtdesc->ucdata = 0;
        if (jas_iccgetuint32(in, &txtdesc->asclen))
                goto error;
        if (!(txtdesc->ascdata = jas_malloc(txtdesc->asclen)))
                goto error;
        if (jas_stream_read(in, txtdesc->ascdata, txtdesc->asclen) !=
          JAS_CAST(int, txtdesc->asclen))
                goto error;
        txtdesc->ascdata[txtdesc->asclen - 1] = '\0';
        if (jas_iccgetuint32(in, &txtdesc->uclangcode) ||
          jas_iccgetuint32(in, &txtdesc->uclen))
                goto error;
        if (!(txtdesc->ucdata = jas_malloc(txtdesc->uclen * 2)))
                goto error;
        if (jas_stream_read(in, txtdesc->ucdata, txtdesc->uclen * 2) !=
          JAS_CAST(int, txtdesc->uclen * 2))
                goto error;
        if (jas_iccgetuint16(in, &txtdesc->sccode))
                goto error;
        if ((c = jas_stream_getc(in)) == EOF)
                goto error;
        txtdesc->maclen = c;
        if (jas_stream_read(in, txtdesc->macdata, 67) != 67)
                goto error;
        txtdesc->asclen = strlen(txtdesc->ascdata) + 1;
#define WORKAROUND_BAD_PROFILES
#ifdef WORKAROUND_BAD_PROFILES
        n = txtdesc->asclen + txtdesc->uclen * 2 + 15 + 67;
        if (n > cnt) {
                return -1;
        }
        if (n < cnt) {
                if (jas_stream_gobble(in, cnt - n) != cnt - n)
                        goto error;
        }
#else
        if (txtdesc->asclen + txtdesc->uclen * 2 + 15 + 67 != cnt)
                return -1;
#endif
        return 0;
error:
        jas_icctxtdesc_destroy(attrval);
        return -1;
}

static int jas_icctxtdesc_getsize(jas_iccattrval_t *attrval)
{
        jas_icctxtdesc_t *txtdesc = &attrval->data.txtdesc;
        return strlen(txtdesc->ascdata) + 1 + txtdesc->uclen * 2 + 15 + 67;
}

static int jas_icctxtdesc_output(jas_iccattrval_t *attrval, jas_stream_t *out)
{
        jas_icctxtdesc_t *txtdesc = &attrval->data.txtdesc;
        if (jas_iccputuint32(out, txtdesc->asclen) ||
          jas_stream_puts(out, txtdesc->ascdata) ||
          jas_stream_putc(out, 0) == EOF ||
          jas_iccputuint32(out, txtdesc->uclangcode) ||
          jas_iccputuint32(out, txtdesc->uclen) ||
          jas_stream_write(out, txtdesc->ucdata, txtdesc->uclen * 2) != JAS_CAST(int, txtdesc->uclen * 2) ||
          jas_iccputuint16(out, txtdesc->sccode) ||
          jas_stream_putc(out, txtdesc->maclen) == EOF)
                goto error;
        if (txtdesc->maclen > 0) {
                if (jas_stream_write(out, txtdesc->macdata, 67) != 67)
                        goto error;
        } else {
                if (jas_stream_pad(out, 67, 0) != 67)
                        goto error;
        }
        return 0;
error:
        return -1;
}

static void jas_icctxtdesc_dump(jas_iccattrval_t *attrval, FILE *out)
{
        jas_icctxtdesc_t *txtdesc = &attrval->data.txtdesc;
        fprintf(out, "ascii = \"%s\"\n", txtdesc->ascdata);
        fprintf(out, "uclangcode = %d; uclen = %d\n", txtdesc->uclangcode,
          txtdesc->uclen);
        fprintf(out, "sccode = %d\n", txtdesc->sccode);
        fprintf(out, "maclen = %d\n", txtdesc->maclen);
}

/******************************************************************************\
*
\******************************************************************************/


static void jas_icctxt_destroy(jas_iccattrval_t *attrval)
{
        jas_icctxt_t *txt = &attrval->data.txt;
        if (txt->string)
                jas_free(txt->string);
}

static int jas_icctxt_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval)
{
        jas_icctxt_t *txt = &attrval->data.txt;
        jas_icctxt_t *othtxt = &othattrval->data.txt;
        if (!(txt->string = strdup(othtxt->string)))
                return -1;
        return 0;
}

static int jas_icctxt_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt)
{
        jas_icctxt_t *txt = &attrval->data.txt;
        txt->string = 0;
        if (!(txt->string = jas_malloc(cnt)))
                goto error;
        if (jas_stream_read(in, txt->string, cnt) != cnt)
                goto error;
        txt->string[cnt - 1] = '\0';
        if (JAS_CAST(int, strlen(txt->string)) + 1 != cnt)
                goto error;
        return 0;
error:
        if (txt->string)
                jas_free(txt->string);
        return -1;
}

static int jas_icctxt_getsize(jas_iccattrval_t *attrval)
{
        jas_icctxt_t *txt = &attrval->data.txt;
        return strlen(txt->string) + 1;
}

static int jas_icctxt_output(jas_iccattrval_t *attrval, jas_stream_t *out)
{
        jas_icctxt_t *txt = &attrval->data.txt;
        if (jas_stream_puts(out, txt->string) ||
          jas_stream_putc(out, 0) == EOF)
                return -1;
        return 0;
}

static void jas_icctxt_dump(jas_iccattrval_t *attrval, FILE *out)
{
        jas_icctxt_t *txt = &attrval->data.txt;
        fprintf(out, "string = \"%s\"\n", txt->string);
}

/******************************************************************************\
*
\******************************************************************************/


static void jas_icclut8_destroy(jas_iccattrval_t *attrval)
{
        jas_icclut8_t *lut8 = &attrval->data.lut8;
        if (lut8->clut)
                jas_free(lut8->clut);
        if (lut8->intabs)
                jas_free(lut8->intabs);
        if (lut8->intabsbuf)
                jas_free(lut8->intabsbuf);
        if (lut8->outtabs)
                jas_free(lut8->outtabs);
        if (lut8->outtabsbuf)
                jas_free(lut8->outtabsbuf);
}

static int jas_icclut8_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval)
{
        jas_icclut8_t *lut8 = &attrval->data.lut8;
        /* Avoid compiler warnings about unused parameters. */
        attrval = 0;
        othattrval = 0;
        lut8 = 0;
        abort();
        return -1;
}

static int jas_icclut8_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt)
{
        int i;
        int j;
        int clutsize;
        jas_icclut8_t *lut8 = &attrval->data.lut8;
        lut8->clut = 0;
        lut8->intabs = 0;
        lut8->intabsbuf = 0;
        lut8->outtabs = 0;
        lut8->outtabsbuf = 0;
        if (jas_iccgetuint8(in, &lut8->numinchans) ||
          jas_iccgetuint8(in, &lut8->numoutchans) ||
          jas_iccgetuint8(in, &lut8->clutlen) ||
          jas_stream_getc(in) == EOF)
                goto error;
        for (i = 0; i < 3; ++i) {
                for (j = 0; j < 3; ++j) {
                        if (jas_iccgetsint32(in, &lut8->e[i][j]))
                                goto error;
                }
        }
        if (jas_iccgetuint16(in, &lut8->numintabents) ||
          jas_iccgetuint16(in, &lut8->numouttabents))
                goto error;
        clutsize = jas_iccpowi(lut8->clutlen, lut8->numinchans) * lut8->numoutchans;
        if (!(lut8->clut = jas_malloc(clutsize * sizeof(jas_iccuint8_t))) ||
          !(lut8->intabsbuf = jas_malloc(lut8->numinchans *
          lut8->numintabents * sizeof(jas_iccuint8_t))) ||
          !(lut8->intabs = jas_malloc(lut8->numinchans *
          sizeof(jas_iccuint8_t *))))
                goto error;
        for (i = 0; i < lut8->numinchans; ++i)
                lut8->intabs[i] = &lut8->intabsbuf[i * lut8->numintabents];
        if (!(lut8->outtabsbuf = jas_malloc(lut8->numoutchans *
          lut8->numouttabents * sizeof(jas_iccuint8_t))) ||
          !(lut8->outtabs = jas_malloc(lut8->numoutchans *
          sizeof(jas_iccuint8_t *))))
                goto error;
        for (i = 0; i < lut8->numoutchans; ++i)
                lut8->outtabs[i] = &lut8->outtabsbuf[i * lut8->numouttabents];
        for (i = 0; i < lut8->numinchans; ++i) {
                for (j = 0; j < JAS_CAST(int, lut8->numintabents); ++j) {
                        if (jas_iccgetuint8(in, &lut8->intabs[i][j]))
                                goto error;
                }
        }
        for (i = 0; i < lut8->numoutchans; ++i) {
                for (j = 0; j < JAS_CAST(int, lut8->numouttabents); ++j) {
                        if (jas_iccgetuint8(in, &lut8->outtabs[i][j]))
                                goto error;
                }
        }
        for (i = 0; i < clutsize; ++i) {
                if (jas_iccgetuint8(in, &lut8->clut[i]))
                        goto error;
        }
        if (JAS_CAST(int, 44 + lut8->numinchans * lut8->numintabents +
          lut8->numoutchans * lut8->numouttabents +
          jas_iccpowi(lut8->clutlen, lut8->numinchans) * lut8->numoutchans) !=
          cnt)
                goto error;
        return 0;
error:
        jas_icclut8_destroy(attrval);
        return -1;
}

static int jas_icclut8_getsize(jas_iccattrval_t *attrval)
{
        jas_icclut8_t *lut8 = &attrval->data.lut8;
        return 44 + lut8->numinchans * lut8->numintabents +
          lut8->numoutchans * lut8->numouttabents +
          jas_iccpowi(lut8->clutlen, lut8->numinchans) * lut8->numoutchans;
}

static int jas_icclut8_output(jas_iccattrval_t *attrval, jas_stream_t *out)
{
        jas_icclut8_t *lut8 = &attrval->data.lut8;
        int i;
        int j;
        int n;
        lut8->clut = 0;
        lut8->intabs = 0;
        lut8->intabsbuf = 0;
        lut8->outtabs = 0;
        lut8->outtabsbuf = 0;
        if (jas_stream_putc(out, lut8->numinchans) == EOF ||
          jas_stream_putc(out, lut8->numoutchans) == EOF ||
          jas_stream_putc(out, lut8->clutlen) == EOF ||
          jas_stream_putc(out, 0) == EOF)
                goto error;
        for (i = 0; i < 3; ++i) {
                for (j = 0; j < 3; ++j) {
                        if (jas_iccputsint32(out, lut8->e[i][j]))
                                goto error;
                }
        }
        if (jas_iccputuint16(out, lut8->numintabents) ||
          jas_iccputuint16(out, lut8->numouttabents))
                goto error;
        n = lut8->numinchans * lut8->numintabents;
        for (i = 0; i < n; ++i) {
                if (jas_iccputuint8(out, lut8->intabsbuf[i]))
                        goto error;
        }
        n = lut8->numoutchans * lut8->numouttabents;
        for (i = 0; i < n; ++i) {
                if (jas_iccputuint8(out, lut8->outtabsbuf[i]))
                        goto error;
        }
        n = jas_iccpowi(lut8->clutlen, lut8->numinchans) * lut8->numoutchans;
        for (i = 0; i < n; ++i) {
                if (jas_iccputuint8(out, lut8->clut[i]))
                        goto error;
        }
        return 0;
error:
        return -1;
}

static void jas_icclut8_dump(jas_iccattrval_t *attrval, FILE *out)
{
        jas_icclut8_t *lut8 = &attrval->data.lut8;
        int i;
        int j;
        fprintf(out, "numinchans=%d, numoutchans=%d, clutlen=%d\n",
          lut8->numinchans, lut8->numoutchans, lut8->clutlen);
        for (i = 0; i < 3; ++i) {
                for (j = 0; j < 3; ++j) {
                        fprintf(out, "e[%d][%d]=%f ", i, j, lut8->e[i][j] / 65536.0);
                }
                fprintf(out, "\n");
        }
        fprintf(out, "numintabents=%d, numouttabents=%d\n",
          lut8->numintabents, lut8->numouttabents);
}

/******************************************************************************\
*
\******************************************************************************/


static void jas_icclut16_destroy(jas_iccattrval_t *attrval)
{
        jas_icclut16_t *lut16 = &attrval->data.lut16;
        if (lut16->clut)
                jas_free(lut16->clut);
        if (lut16->intabs)
                jas_free(lut16->intabs);
        if (lut16->intabsbuf)
                jas_free(lut16->intabsbuf);
        if (lut16->outtabs)
                jas_free(lut16->outtabs);
        if (lut16->outtabsbuf)
                jas_free(lut16->outtabsbuf);
}

static int jas_icclut16_copy(jas_iccattrval_t *attrval,
  jas_iccattrval_t *othattrval)
{
        /* Avoid compiler warnings about unused parameters. */
        attrval = 0;
        othattrval = 0;
        /* Not yet implemented. */
        abort();
        return -1;
}

static int jas_icclut16_input(jas_iccattrval_t *attrval, jas_stream_t *in,
  int cnt)
{
        int i;
        int j;
        int clutsize;
        jas_icclut16_t *lut16 = &attrval->data.lut16;
        lut16->clut = 0;
        lut16->intabs = 0;
        lut16->intabsbuf = 0;
        lut16->outtabs = 0;
        lut16->outtabsbuf = 0;
        if (jas_iccgetuint8(in, &lut16->numinchans) ||
          jas_iccgetuint8(in, &lut16->numoutchans) ||
          jas_iccgetuint8(in, &lut16->clutlen) ||
          jas_stream_getc(in) == EOF)
                goto error;
        for (i = 0; i < 3; ++i) {
                for (j = 0; j < 3; ++j) {
                        if (jas_iccgetsint32(in, &lut16->e[i][j]))
                                goto error;
                }
        }
        if (jas_iccgetuint16(in, &lut16->numintabents) ||
          jas_iccgetuint16(in, &lut16->numouttabents))
                goto error;
        clutsize = jas_iccpowi(lut16->clutlen, lut16->numinchans) * lut16->numoutchans;
        if (!(lut16->clut = jas_malloc(clutsize * sizeof(jas_iccuint16_t))) ||
          !(lut16->intabsbuf = jas_malloc(lut16->numinchans *
          lut16->numintabents * sizeof(jas_iccuint16_t))) ||
          !(lut16->intabs = jas_malloc(lut16->numinchans *
          sizeof(jas_iccuint16_t *))))
                goto error;
        for (i = 0; i < lut16->numinchans; ++i)
                lut16->intabs[i] = &lut16->intabsbuf[i * lut16->numintabents];
        if (!(lut16->outtabsbuf = jas_malloc(lut16->numoutchans *
          lut16->numouttabents * sizeof(jas_iccuint16_t))) ||
          !(lut16->outtabs = jas_malloc(lut16->numoutchans *
          sizeof(jas_iccuint16_t *))))
                goto error;
        for (i = 0; i < lut16->numoutchans; ++i)
                lut16->outtabs[i] = &lut16->outtabsbuf[i * lut16->numouttabents];
        for (i = 0; i < lut16->numinchans; ++i) {
                for (j = 0; j < JAS_CAST(int, lut16->numintabents); ++j) {
                        if (jas_iccgetuint16(in, &lut16->intabs[i][j]))
                                goto error;
                }
        }
        for (i = 0; i < lut16->numoutchans; ++i) {
                for (j = 0; j < JAS_CAST(int, lut16->numouttabents); ++j) {
                        if (jas_iccgetuint16(in, &lut16->outtabs[i][j]))
                                goto error;
                }
        }
        for (i = 0; i < clutsize; ++i) {
                if (jas_iccgetuint16(in, &lut16->clut[i]))
                        goto error;
        }
        if (JAS_CAST(int, 44 + 2 * (lut16->numinchans * lut16->numintabents +
          lut16->numoutchans * lut16->numouttabents +
          jas_iccpowi(lut16->clutlen, lut16->numinchans) *
          lut16->numoutchans)) != cnt)
                goto error;
        return 0;
error:
        jas_icclut16_destroy(attrval);
        return -1;
}

static int jas_icclut16_getsize(jas_iccattrval_t *attrval)
{
        jas_icclut16_t *lut16 = &attrval->data.lut16;
        return 44 + 2 * (lut16->numinchans * lut16->numintabents +
          lut16->numoutchans * lut16->numouttabents +
          jas_iccpowi(lut16->clutlen, lut16->numinchans) * lut16->numoutchans);
}

static int jas_icclut16_output(jas_iccattrval_t *attrval, jas_stream_t *out)
{
        jas_icclut16_t *lut16 = &attrval->data.lut16;
        int i;
        int j;
        int n;
        if (jas_stream_putc(out, lut16->numinchans) == EOF ||
          jas_stream_putc(out, lut16->numoutchans) == EOF ||
          jas_stream_putc(out, lut16->clutlen) == EOF ||
          jas_stream_putc(out, 0) == EOF)
                goto error;
        for (i = 0; i < 3; ++i) {
                for (j = 0; j < 3; ++j) {
                        if (jas_iccputsint32(out, lut16->e[i][j]))
                                goto error;
                }
        }
        if (jas_iccputuint16(out, lut16->numintabents) ||
          jas_iccputuint16(out, lut16->numouttabents))
                goto error;
        n = lut16->numinchans * lut16->numintabents;
        for (i = 0; i < n; ++i) {
                if (jas_iccputuint16(out, lut16->intabsbuf[i]))
                        goto error;
        }
        n = lut16->numoutchans * lut16->numouttabents;
        for (i = 0; i < n; ++i) {
                if (jas_iccputuint16(out, lut16->outtabsbuf[i]))
                        goto error;
        }
        n = jas_iccpowi(lut16->clutlen, lut16->numinchans) * lut16->numoutchans;
        for (i = 0; i < n; ++i) {
                if (jas_iccputuint16(out, lut16->clut[i]))
                        goto error;
        }
        return 0;
error:
        return -1;
}

static void jas_icclut16_dump(jas_iccattrval_t *attrval, FILE *out)
{
        jas_icclut16_t *lut16 = &attrval->data.lut16;
        int i;
        int j;
        fprintf(out, "numinchans=%d, numoutchans=%d, clutlen=%d\n",
          lut16->numinchans, lut16->numoutchans, lut16->clutlen);
        for (i = 0; i < 3; ++i) {
                for (j = 0; j < 3; ++j) {
                        fprintf(out, "e[%d][%d]=%f ", i, j, lut16->e[i][j] / 65536.0);
                }
                fprintf(out, "\n");
        }
        fprintf(out, "numintabents=%d, numouttabents=%d\n",
          lut16->numintabents, lut16->numouttabents);
}

/******************************************************************************\
*
\******************************************************************************/


static int jas_iccgetuint(jas_stream_t *in, int n, ulonglong *val)
{
        int i;
        int c;
        ulonglong v;
        v = 0;
        for (i = n; i > 0; --i) {
                if ((c = jas_stream_getc(in)) == EOF)
                        return -1;
                v = (v << 8) | c;
        }
        *val = v;
        return 0;
}

static int jas_iccgetuint8(jas_stream_t *in, jas_iccuint8_t *val)
{
        int c;
        if ((c = jas_stream_getc(in)) == EOF)
                return -1;
        *val = c;
        return 0;
}

static int jas_iccgetuint16(jas_stream_t *in, jas_iccuint16_t *val)
{
        ulonglong tmp;
        if (jas_iccgetuint(in, 2, &tmp))
                return -1;
        *val = tmp;
        return 0;
}

static int jas_iccgetsint32(jas_stream_t *in, jas_iccsint32_t *val)
{
        ulonglong tmp;
        if (jas_iccgetuint(in, 4, &tmp))
                return -1;
        *val = (tmp & 0x80000000) ? (-JAS_CAST(longlong, (((~tmp) &
          0x7fffffff) + 1))) : JAS_CAST(longlong, tmp);
        return 0;
}

static int jas_iccgetuint32(jas_stream_t *in, jas_iccuint32_t *val)
{
        ulonglong tmp;
        if (jas_iccgetuint(in, 4, &tmp))
                return -1;
        *val = tmp;
        return 0;
}

static int jas_iccgetuint64(jas_stream_t *in, jas_iccuint64_t *val)
{
        ulonglong tmp;
        if (jas_iccgetuint(in, 8, &tmp))
                return -1;
        *val = tmp;
        return 0;
}

static int jas_iccputuint(jas_stream_t *out, int n, ulonglong val)
{
        int i;
        int c;
        for (i = n; i > 0; --i) {
                c = (val >> (8 * (i - 1))) & 0xff;
                if (jas_stream_putc(out, c) == EOF)
                        return -1;
        }
        return 0;
}

static int jas_iccputsint(jas_stream_t *out, int n, longlong val)
{
        ulonglong tmp;
        tmp = (val < 0) ? (abort(), 0) : val;
        return jas_iccputuint(out, n, tmp);
}

/******************************************************************************\
*
\******************************************************************************/


static char *jas_iccsigtostr(int sig, char *buf)
{
        int n;
        int c;
        char *bufptr;
        bufptr = buf;
        for (n = 4; n > 0; --n) {
                c = (sig >> 24) & 0xff;
                if (isalpha(c) || isdigit(c)) {
                        *bufptr++ = c;
                }
                sig <<= 8;
        }
        *bufptr = '\0';
        return buf;
}

static long jas_iccpadtomult(long x, long y)
{
        return ((x + y - 1) / y) * y;
}

static long jas_iccpowi(int x, int n)
{
        long y;
        y = 1;
        while (--n >= 0)
                y *= x;
        return y;
}


jas_iccprof_t *jas_iccprof_createfrombuf(uchar *buf, int len)
{
        jas_stream_t *in;
        jas_iccprof_t *prof;
        if (!(in = jas_stream_memopen(JAS_CAST(char *, buf), len)))
                goto error;
        if (!(prof = jas_iccprof_load(in)))
                goto error;
        jas_stream_close(in);
        return prof;
error:
        return 0;
}

jas_iccprof_t *jas_iccprof_createfromclrspc(int clrspc)
{
        jas_iccprof_t *prof;
        switch (clrspc) {
        case JAS_CLRSPC_SRGB:
                prof = jas_iccprof_createfrombuf(jas_iccprofdata_srgb,
                  jas_iccprofdata_srgblen);
                break;
        case JAS_CLRSPC_SGRAY:
                prof = jas_iccprof_createfrombuf(jas_iccprofdata_sgray,
                  jas_iccprofdata_sgraylen);
                break;
        default:
                prof = 0;
                break;
        }
        return prof;
}