/*
 * 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__
 */

/*
 * Tree-Structured Filter Bank (TSFB) Library
 *
 * $Id$
 */

/******************************************************************************\
* Includes.
\******************************************************************************/

#include <assert.h>

#include "jasper/jas_malloc.h"
#include "jasper/jas_seq.h"

#include "jpc_tsfb.h"
#include "jpc_cod.h"
#include "jpc_cs.h"
#include "jpc_util.h"

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

#define bandnotovind(tsfbnode, x)       ((x) / (tsfbnode)->numhchans)
#define bandnotohind(tsfbnode, x)       ((x) % (tsfbnode)->numhchans)

static jpc_tsfb_t *jpc_tsfb_create(void);
static jpc_tsfbnode_t *jpc_tsfbnode_create(void);
static void jpc_tsfbnode_destroy(jpc_tsfbnode_t *node);
static void jpc_tsfbnode_synthesize(jpc_tsfbnode_t *node, int flags, jas_seq2d_t *x);
static void jpc_tsfbnode_analyze(jpc_tsfbnode_t *node, int flags, jas_seq2d_t *x);
static void qmfb2d_getbands(jpc_qmfb1d_t *hqmfb, jpc_qmfb1d_t *vqmfb,
  uint_fast32_t xstart, uint_fast32_t ystart, uint_fast32_t xend,
  uint_fast32_t yend, int maxbands, int *numbandsptr, jpc_tsfbnodeband_t *bands);
static void jpc_tsfbnode_getbandstree(jpc_tsfbnode_t *node, uint_fast32_t posxstart,
  uint_fast32_t posystart, uint_fast32_t xstart, uint_fast32_t ystart,
  uint_fast32_t xend, uint_fast32_t yend, jpc_tsfb_band_t **bands);
static int jpc_tsfbnode_findchild(jpc_tsfbnode_t *parnode, jpc_tsfbnode_t *cldnode);
static int jpc_tsfbnode_getequivfilters(jpc_tsfbnode_t *tsfbnode, int cldind,
  int width, int height, jas_seq_t **vfilter, jas_seq_t **hfilter);

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

jpc_tsfb_t *jpc_tsfb_wavelet(jpc_qmfb1d_t *hqmfb, jpc_qmfb1d_t *vqmfb, int numdlvls)
{
        jpc_tsfb_t *tsfb;
        int dlvlno;
        jpc_tsfbnode_t *curnode;
        jpc_tsfbnode_t *prevnode;
        int childno;
        if (!(tsfb = jpc_tsfb_create())) {
                return 0;
        }
        prevnode = 0;
        for (dlvlno = 0; dlvlno < numdlvls; ++dlvlno) {
                if (!(curnode = jpc_tsfbnode_create())) {
                        jpc_tsfb_destroy(tsfb);
                        return 0;
                }
                if (prevnode) {
                        prevnode->children[0] = curnode;
                        ++prevnode->numchildren;
                        curnode->parent = prevnode;
                } else {
                        tsfb->root = curnode;
                        curnode->parent = 0;
                }
                if (hqmfb) {
                        curnode->numhchans = jpc_qmfb1d_getnumchans(hqmfb);
                        if (!(curnode->hqmfb = jpc_qmfb1d_copy(hqmfb))) {
                                jpc_tsfb_destroy(tsfb);
                                return 0;
                        }
                } else {
                        curnode->hqmfb = 0;
                        curnode->numhchans = 1;
                }
                if (vqmfb) {
                        curnode->numvchans = jpc_qmfb1d_getnumchans(vqmfb);
                        if (!(curnode->vqmfb = jpc_qmfb1d_copy(vqmfb))) {
                                jpc_tsfb_destroy(tsfb);
                                return 0;
                        }
                } else {
                        curnode->vqmfb = 0;
                        curnode->numvchans = 1;
                }
                curnode->maxchildren = curnode->numhchans * curnode->numvchans;
                for (childno = 0; childno < curnode->maxchildren;
                  ++childno) {
                        curnode->children[childno] = 0;
                }
                prevnode = curnode;
        }
        return tsfb;
}

static jpc_tsfb_t *jpc_tsfb_create()
{
        jpc_tsfb_t *tsfb;
        if (!(tsfb = jas_malloc(sizeof(jpc_tsfb_t)))) {
                return 0;
        }
        tsfb->root = 0;
        return tsfb;
}

void jpc_tsfb_destroy(jpc_tsfb_t *tsfb)
{
        if (tsfb->root) {
                jpc_tsfbnode_destroy(tsfb->root);
        }
        jas_free(tsfb);
}

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

void jpc_tsfb_analyze(jpc_tsfb_t *tsfb, int flags, jas_seq2d_t *x)
{
        if (tsfb->root) {
                jpc_tsfbnode_analyze(tsfb->root, flags, x);
        }
}

static void jpc_tsfbnode_analyze(jpc_tsfbnode_t *node, int flags, jas_seq2d_t *x)
{
        jpc_tsfbnodeband_t nodebands[JPC_TSFB_MAXBANDSPERNODE];
        int numbands;
        jas_seq2d_t *y;
        int bandno;
        jpc_tsfbnodeband_t *band;

        if (node->vqmfb) {
                jpc_qmfb1d_analyze(node->vqmfb, flags | JPC_QMFB1D_VERT, x);
        }
        if (node->hqmfb) {
                jpc_qmfb1d_analyze(node->hqmfb, flags, x);
        }
        if (node->numchildren > 0) {
                qmfb2d_getbands(node->hqmfb, node->vqmfb, jas_seq2d_xstart(x),
                  jas_seq2d_ystart(x), jas_seq2d_xend(x), jas_seq2d_yend(x),
                  JPC_TSFB_MAXBANDSPERNODE, &numbands, nodebands);
                y = jas_seq2d_create(0, 0, 0, 0);
                assert(y);
                for (bandno = 0, band = nodebands; bandno < numbands; ++bandno, ++band) {
                        if (node->children[bandno]) {
                                if (band->xstart != band->xend && band->ystart != band->yend) {
                                        jas_seq2d_bindsub(y, x, band->locxstart, band->locystart,
                                          band->locxend, band->locyend);
                                        jas_seq2d_setshift(y, band->xstart, band->ystart);
                                        jpc_tsfbnode_analyze(node->children[bandno], flags, y);
                                }
                        }
                }
                jas_matrix_destroy(y);
        }
}

void jpc_tsfb_synthesize(jpc_tsfb_t *tsfb, int flags, jas_seq2d_t *x)
{
        if (tsfb->root) {
                jpc_tsfbnode_synthesize(tsfb->root, flags, x);
        }
}

static void jpc_tsfbnode_synthesize(jpc_tsfbnode_t *node, int flags, jas_seq2d_t *x)
{
        jpc_tsfbnodeband_t nodebands[JPC_TSFB_MAXBANDSPERNODE];
        int numbands;
        jas_seq2d_t *y;
        int bandno;
        jpc_tsfbnodeband_t *band;

        if (node->numchildren > 0) {
                qmfb2d_getbands(node->hqmfb, node->vqmfb, jas_seq2d_xstart(x),
                  jas_seq2d_ystart(x), jas_seq2d_xend(x), jas_seq2d_yend(x),
                  JPC_TSFB_MAXBANDSPERNODE, &numbands, nodebands);
                y = jas_seq2d_create(0, 0, 0, 0);
                for (bandno = 0, band = nodebands; bandno < numbands; ++bandno, ++band) {
                        if (node->children[bandno]) {
                                if (band->xstart != band->xend && band->ystart != band->yend) {
                                        jas_seq2d_bindsub(y, x, band->locxstart, band->locystart,
                                          band->locxend, band->locyend);
                                        jas_seq2d_setshift(y, band->xstart, band->ystart);
                                        jpc_tsfbnode_synthesize(node->children[bandno], flags, y);
                                }
                        }
                }
                jas_seq2d_destroy(y);
        }
        if (node->hqmfb) {
                jpc_qmfb1d_synthesize(node->hqmfb, flags, x);
        }
        if (node->vqmfb) {
                jpc_qmfb1d_synthesize(node->vqmfb, flags | JPC_QMFB1D_VERT, x);
        }
}

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


int jpc_tsfb_getbands(jpc_tsfb_t *tsfb, uint_fast32_t xstart, uint_fast32_t ystart,
  uint_fast32_t xend, uint_fast32_t yend, jpc_tsfb_band_t *bands)
{
        jpc_tsfb_band_t *savbands;
        savbands = bands;
        if (!tsfb->root) {
                bands[0].xstart = xstart;
                bands[0].ystart = ystart;
                bands[0].xend = xend;
                bands[0].yend = yend;
                bands[0].locxstart = xstart;
                bands[0].locystart = ystart;
                bands[0].locxend = xend;
                bands[0].locyend = yend;
                bands[0].orient = JPC_TSFB_LL;
                bands[0].synenergywt = JPC_FIX_ONE;
                ++bands;
        } else {
                jpc_tsfbnode_getbandstree(tsfb->root, xstart, ystart,
                  xstart, ystart, xend, yend, &bands);
        }
        return bands - savbands;
}

static void jpc_tsfbnode_getbandstree(jpc_tsfbnode_t *node, uint_fast32_t posxstart,
  uint_fast32_t posystart, uint_fast32_t xstart, uint_fast32_t ystart,
  uint_fast32_t xend, uint_fast32_t yend, jpc_tsfb_band_t **bands)
{
        jpc_tsfbnodeband_t nodebands[JPC_TSFB_MAXBANDSPERNODE];
        jpc_tsfbnodeband_t *nodeband;
        int nodebandno;
        int numnodebands;
        jpc_tsfb_band_t *band;
        jas_seq_t *hfilter;
        jas_seq_t *vfilter;

        qmfb2d_getbands(node->hqmfb, node->vqmfb, xstart, ystart, xend, yend,
          JPC_TSFB_MAXBANDSPERNODE, &numnodebands, nodebands);
        if (node->numchildren > 0) {
                for (nodebandno = 0, nodeband = nodebands;
                  nodebandno < numnodebands; ++nodebandno, ++nodeband) {
                        if (node->children[nodebandno]) {
                                jpc_tsfbnode_getbandstree(node->children[
                                  nodebandno], posxstart +
                                  nodeband->locxstart - xstart, posystart +
                                  nodeband->locystart - ystart, nodeband->xstart,
                                  nodeband->ystart, nodeband->xend,
                                  nodeband->yend, bands);

                        }
                }
        }
assert(numnodebands == 4 || numnodebands == 3);
        for (nodebandno = 0, nodeband = nodebands; nodebandno < numnodebands;
          ++nodebandno, ++nodeband) {
                if (!node->children[nodebandno]) {
                        band = *bands;
                        band->xstart = nodeband->xstart;
                        band->ystart = nodeband->ystart;
                        band->xend = nodeband->xend;
                        band->yend = nodeband->yend;
                        band->locxstart = posxstart + nodeband->locxstart -
                          xstart;
                        band->locystart = posystart + nodeband->locystart -
                          ystart;
                        band->locxend = band->locxstart + band->xend -
                          band->xstart;
                        band->locyend = band->locystart + band->yend -
                          band->ystart;
                        if (numnodebands == 4) {
                                switch (nodebandno) {
                                case 0:
                                        band->orient = JPC_TSFB_LL;
                                        break;
                                case 1:
                                        band->orient = JPC_TSFB_HL;
                                        break;
                                case 2:
                                        band->orient = JPC_TSFB_LH;
                                        break;
                                case 3:
                                        band->orient = JPC_TSFB_HH;
                                        break;
                                default:
                                        abort();
                                        break;
                                }
                        } else {
                                switch (nodebandno) {
                                case 0:
                                        band->orient = JPC_TSFB_HL;
                                        break;
                                case 1:
                                        band->orient = JPC_TSFB_LH;
                                        break;
                                case 2:
                                        band->orient = JPC_TSFB_HH;
                                        break;
                                default:
                                        abort();
                                        break;
                                }
                        }
                        jpc_tsfbnode_getequivfilters(node, nodebandno, band->xend - band->xstart, band->yend - band->ystart, &hfilter, &vfilter);
                        band->synenergywt = jpc_fix_mul(jpc_seq_norm(hfilter),
                          jpc_seq_norm(vfilter));
                        jas_seq_destroy(hfilter);
                        jas_seq_destroy(vfilter);
                        ++(*bands);
                }
        }
}

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

static jpc_tsfbnode_t *jpc_tsfbnode_create()
{
        jpc_tsfbnode_t *node;
        if (!(node = jas_malloc(sizeof(jpc_tsfbnode_t)))) {
                return 0;
        }
        node->numhchans = 0;
        node->numvchans = 0;
        node->numchildren = 0;
        node->maxchildren = 0;
        node->hqmfb = 0;
        node->vqmfb = 0;
        node->parent = 0;
        return node;
}

static void jpc_tsfbnode_destroy(jpc_tsfbnode_t *node)
{
        jpc_tsfbnode_t **child;
        int childno;
        for (childno = 0, child = node->children; childno < node->maxchildren;
          ++childno, ++child) {
                if (*child) {
                        jpc_tsfbnode_destroy(*child);
                }
        }
        if (node->hqmfb) {
                jpc_qmfb1d_destroy(node->hqmfb);
        }
        if (node->vqmfb) {
                jpc_qmfb1d_destroy(node->vqmfb);
        }
        jas_free(node);
}








static void qmfb2d_getbands(jpc_qmfb1d_t *hqmfb, jpc_qmfb1d_t *vqmfb,
  uint_fast32_t xstart, uint_fast32_t ystart, uint_fast32_t xend,
  uint_fast32_t yend, int maxbands, int *numbandsptr, jpc_tsfbnodeband_t *bands)
{
        jpc_qmfb1dband_t hbands[JPC_QMFB1D_MAXCHANS];
        jpc_qmfb1dband_t vbands[JPC_QMFB1D_MAXCHANS];
        int numhbands;
        int numvbands;
        int numbands;
        int bandno;
        int hbandno;
        int vbandno;
        jpc_tsfbnodeband_t *band;

        if (hqmfb) {
                jpc_qmfb1d_getbands(hqmfb, 0, xstart, ystart, xend, yend,
                  JPC_QMFB1D_MAXCHANS, &numhbands, hbands);
        } else {
                numhbands = 1;
                hbands[0].start = xstart;
                hbands[0].end = xend;
                hbands[0].locstart = xstart;
                hbands[0].locend = xend;
        }
        if (vqmfb) {
                jpc_qmfb1d_getbands(vqmfb, JPC_QMFB1D_VERT, xstart, ystart, xend,
                  yend, JPC_QMFB1D_MAXCHANS, &numvbands, vbands);
        } else {
                numvbands = 1;
                vbands[0].start = ystart;
                vbands[0].end = yend;
                vbands[0].locstart = ystart;
                vbands[0].locend = yend;
        }
        numbands = numhbands * numvbands;
        *numbandsptr = numbands;
        for (bandno = 0, band = bands; bandno < numbands; ++bandno, ++band) {
                hbandno = bandno % numhbands;
                vbandno = bandno / numhbands;
                band->xstart = hbands[hbandno].start;
                band->ystart = vbands[vbandno].start;
                band->xend = hbands[hbandno].end;
                band->yend = vbands[vbandno].end;
                band->locxstart = hbands[hbandno].locstart;
                band->locystart = vbands[vbandno].locstart;
                band->locxend = hbands[hbandno].locend;
                band->locyend = vbands[vbandno].locend;
                assert(band->xstart <= band->xend &&
                  band->ystart <= band->yend);
                if (band->xstart == band->xend) {
                        band->yend = band->ystart;
                        band->locyend = band->locystart;
                } else if (band->ystart == band->yend) {
                        band->xend = band->xstart;
                        band->locxend = band->locxstart;
                }
        }
}

static int jpc_tsfbnode_getequivfilters(jpc_tsfbnode_t *tsfbnode, int cldind,
  int width, int height, jas_seq_t **hfilter, jas_seq_t **vfilter)
{
        jas_seq_t *hseq;
        jas_seq_t *vseq;
        jpc_tsfbnode_t *node;
        jas_seq2d_t *hfilters[JPC_QMFB1D_MAXCHANS];
        jas_seq2d_t *vfilters[JPC_QMFB1D_MAXCHANS];
        int numhchans;
        int numvchans;
        jas_seq_t *tmpseq;

        hseq = 0;
        vseq = 0;

        if (!(hseq = jas_seq_create(0, 1))) {
                goto error;
        }
        jas_seq_set(hseq, 0, jpc_inttofix(1));
        if (!(vseq = jas_seq_create(0, 1))) {
                goto error;
        }
        jas_seq_set(vseq, 0, jpc_inttofix(1));

        node = tsfbnode;
        while (node) {
                if (node->hqmfb) {
                        numhchans = jpc_qmfb1d_getnumchans(node->hqmfb);
                        if (jpc_qmfb1d_getsynfilters(node->hqmfb, width, hfilters)) {
                                goto error;
                        }
                        if (!(tmpseq = jpc_seq_upsample(hseq, numhchans))) {
                                goto error;
                        }
                        jas_seq_destroy(hseq);
                        hseq = tmpseq;
                        if (!(tmpseq = jpc_seq_conv(hseq, hfilters[bandnotohind(node, cldind)]))) {
                                goto error;
                        }
                        jas_seq_destroy(hfilters[0]);
                        jas_seq_destroy(hfilters[1]);
                        jas_seq_destroy(hseq);
                        hseq = tmpseq;
                }
                if (node->vqmfb) {
                        numvchans = jpc_qmfb1d_getnumchans(node->vqmfb);
                        if (jpc_qmfb1d_getsynfilters(node->vqmfb, height, vfilters)) {
                                abort();
                        }
                        if (!(tmpseq = jpc_seq_upsample(vseq, numvchans))) {
                                goto error;
                        }
                        jas_seq_destroy(vseq);
                        vseq = tmpseq;
                        if (!(tmpseq = jpc_seq_conv(vseq, vfilters[bandnotovind(node, cldind)]))) {
                                goto error;
                        }
                        jas_seq_destroy(vfilters[0]);
                        jas_seq_destroy(vfilters[1]);
                        jas_seq_destroy(vseq);
                        vseq = tmpseq;
                }
                if (node->parent) {
                        cldind = jpc_tsfbnode_findchild(node->parent, node);
                }
                node = node->parent;
        }

        *hfilter = hseq;
        *vfilter = vseq;

        return 0;

error:
        if (hseq) {
                jas_seq_destroy(hseq);
        }
        if (vseq) {
                jas_seq_destroy(vseq);
        }
        return -1;

}

static int jpc_tsfbnode_findchild(jpc_tsfbnode_t *parnode, jpc_tsfbnode_t *cldnode)
{
        int i;

        for (i = 0; i < parnode->maxchildren; i++) {
                if (parnode->children[i] == cldnode)
                        return i;
        }
        assert(0);
        return -1;
}

jpc_tsfb_t *jpc_cod_gettsfb(int qmfbid, int numlevels)
{
        jpc_tsfb_t *tsfb;

        switch (qmfbid) {
        case JPC_COX_RFT:
                qmfbid = JPC_QMFB1D_FT;
                break;
        case JPC_COX_INS:
                qmfbid = JPC_QMFB1D_NS;
                break;
        default:
                assert(0);
                qmfbid = 10;
                break;
        }

{
        jpc_qmfb1d_t *hqmfb;
        hqmfb = jpc_qmfb1d_make(qmfbid);
        assert(hqmfb);
        tsfb = jpc_tsfb_wavelet(hqmfb, hqmfb, numlevels);
        assert(tsfb);
        jpc_qmfb1d_destroy(hqmfb);
}

        return tsfb;
}
