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-rw-r--r--indexer_JPIP/pi.c434
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diff --git a/indexer_JPIP/pi.c b/indexer_JPIP/pi.c
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+/*
+ * Copyright (c) 2001-2002, David Janssens
+ * Copyright (c) 2003, Yannick Verschueren
+ * Copyright (c) 2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "pi.h"
+#include "int.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+
+/// <summary>
+/// Create a packet iterator.
+/// </summary>
+pi_iterator_t *pi_create(j2k_image_t *img, j2k_cp_t *cp, int tileno) {
+ int p, q;
+ int compno, resno,pino, layno, precno;
+ int maxres=0;
+ pi_iterator_t *pi;
+ j2k_tcp_t *tcp;
+ j2k_tccp_t *tccp;
+
+ tcp=&cp->tcps[tileno];
+ pi=(pi_iterator_t*)malloc((tcp->numpocs+1)*sizeof(pi_iterator_t));
+
+ for (pino=0;pino<tcp->numpocs+1;pino++) // change
+ {
+ p=tileno%cp->tw;
+ q=tileno/cp->tw;
+
+ pi[pino].tx0=int_max(cp->tx0+p*cp->tdx, img->x0);
+ pi[pino].ty0=int_max(cp->ty0+q*cp->tdy, img->y0);
+ pi[pino].tx1=int_min(cp->tx0+(p+1)*cp->tdx, img->x1);
+ pi[pino].ty1=int_min(cp->ty0+(q+1)*cp->tdy, img->y1);
+ pi[pino].numcomps=img->numcomps;
+ pi[pino].comps=(pi_comp_t*)malloc(img->numcomps*sizeof(pi_comp_t));
+
+ for (compno=0; compno<pi->numcomps; compno++)
+ {
+ int tcx0, tcy0, tcx1, tcy1;
+ pi_comp_t *comp=&pi[pino].comps[compno];
+
+ tccp=&tcp->tccps[compno];
+ comp->dx=img->comps[compno].dx;
+ comp->dy=img->comps[compno].dy;
+ comp->numresolutions=tccp->numresolutions;
+ comp->resolutions=(pi_resolution_t*)malloc(comp->numresolutions*sizeof(pi_resolution_t));
+ tcx0=int_ceildiv(pi->tx0, comp->dx);
+ tcy0=int_ceildiv(pi->ty0, comp->dy);
+ tcx1=int_ceildiv(pi->tx1, comp->dx);
+ tcy1=int_ceildiv(pi->ty1, comp->dy);
+ if (comp->numresolutions>maxres) {
+ maxres=comp->numresolutions;
+ }
+ for (resno=0; resno<comp->numresolutions; resno++)
+ {
+ int levelno;
+ int rx0, ry0, rx1, ry1;
+ int px0, py0, px1, py1;
+ pi_resolution_t *res=&comp->resolutions[resno];
+ if (tccp->csty&J2K_CCP_CSTY_PRT) {
+ res->pdx=tccp->prcw[resno];
+ res->pdy=tccp->prch[resno];
+ } else {
+ res->pdx=15;
+ res->pdy=15;
+ }
+ levelno=comp->numresolutions-1-resno;
+ rx0=int_ceildivpow2(tcx0, levelno);
+ ry0=int_ceildivpow2(tcy0, levelno);
+ rx1=int_ceildivpow2(tcx1, levelno);
+ ry1=int_ceildivpow2(tcy1, levelno);
+ px0=int_floordivpow2(rx0, res->pdx)<<res->pdx;
+ py0=int_floordivpow2(ry0, res->pdy)<<res->pdy;
+ px1=int_ceildivpow2(rx1, res->pdx)<<res->pdx;
+ py1=int_ceildivpow2(ry1, res->pdy)<<res->pdy;
+ res->pw=(px1-px0)>>res->pdx;
+ res->ph=(py1-py0)>>res->pdy;
+ }
+ }
+
+ for (layno=0; layno<10; layno++)
+ {
+ for (resno=0; resno<10; resno++)
+ {
+ for (compno=0; compno<3; compno++)
+ {
+ for (precno=0; precno<99; precno++)
+ {
+ pi[pino].include[layno][resno][compno][precno]=0;
+ }
+ }
+ }
+ }
+
+ if (pino==tcp->numpocs)
+ {
+ pi[pino].first=1;
+ pi[pino].poc.resno0=0;
+ pi[pino].poc.compno0=0;
+ pi[pino].poc.layno1=tcp->numlayers;
+ pi[pino].poc.resno1=maxres;
+ pi[pino].poc.compno1=img->numcomps;
+ pi[pino].poc.prg=tcp->prg;
+ } else
+ {
+ pi[pino].first=1;
+ pi[pino].poc.resno0=tcp->pocs[pino].resno0;
+ pi[pino].poc.compno0=tcp->pocs[pino].compno0;
+ pi[pino].poc.layno1=tcp->pocs[pino].layno1;
+ pi[pino].poc.resno1=tcp->pocs[pino].resno1;
+ pi[pino].poc.compno1=tcp->pocs[pino].compno1;
+ pi[pino].poc.prg=tcp->pocs[pino].prg;
+ }
+ }
+ return pi;
+}
+
+/// <summary>
+/// Get next packet in layer=resolution-component-precinct order.
+/// </summary>
+int pi_next_lrcp(pi_iterator_t *pi) {
+ pi_comp_t *comp;
+ pi_resolution_t *res;
+
+ if (!pi->first)
+ {
+ comp=&pi->comps[pi->compno];
+ res=&comp->resolutions[pi->resno];
+ goto skip;
+ } else {
+ pi->first=0;
+ }
+ for (pi->layno=0; pi->layno<pi->poc.layno1; pi->layno++)
+ {
+ for (pi->resno=pi->poc.resno0; pi->resno<pi->poc.resno1; pi->resno++)
+ {
+ for (pi->compno=pi->poc.compno0; pi->compno<pi->poc.compno1; pi->compno++)
+ {
+
+ comp=&pi->comps[pi->compno];
+ if (pi->resno>=comp->numresolutions)
+ {
+
+ continue;
+ }
+ res=&comp->resolutions[pi->resno];
+
+ for (pi->precno=0; pi->precno<res->pw*res->ph; pi->precno++)
+ {
+
+ if (!pi->include[pi->layno][pi->resno][pi->compno][pi->precno])
+ {
+ pi->include[pi->layno][pi->resno][pi->compno][pi->precno]=1;
+ return 1;
+ }
+ skip: ;
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+/// <summary>
+/// Get next packet in resolution-layer-component-precinct order.
+/// </summary>
+int pi_next_rlcp(pi_iterator_t *pi) {
+ pi_comp_t *comp;
+ pi_resolution_t *res;
+ if (!pi->first) {
+ comp=&pi->comps[pi->compno];
+ res=&comp->resolutions[pi->resno];
+ goto skip;
+ } else {
+ pi->first=0;
+ }
+ for (pi->resno=pi->poc.resno0; pi->resno<pi->poc.resno1; pi->resno++) {
+ for (pi->layno=0; pi->layno<pi->poc.layno1; pi->layno++) {
+ for (pi->compno=pi->poc.compno0; pi->compno<pi->poc.compno1; pi->compno++) {
+ comp=&pi->comps[pi->compno];
+ if (pi->resno>=comp->numresolutions) {
+ continue;
+ }
+ res=&comp->resolutions[pi->resno];
+ for (pi->precno=0; pi->precno<res->pw*res->ph; pi->precno++) {
+ if (!pi->include[pi->layno][pi->resno][pi->compno][pi->precno])
+ {
+ pi->include[pi->layno][pi->resno][pi->compno][pi->precno]=1;
+ return 1;
+ }
+ skip: ;
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+/// <summary>
+/// Get next packet in resolution-precinct-component-layer order.
+/// </summary>
+int pi_next_rpcl(pi_iterator_t *pi) {
+ pi_comp_t *comp;
+ pi_resolution_t *res;
+ if (!pi->first) {
+ goto skip;
+ } else {
+ int compno, resno;
+ pi->first=0;
+ pi->dx=0;
+ pi->dy=0;
+ for (compno=0; compno<pi->numcomps; compno++) {
+ comp=&pi->comps[compno];
+ for (resno=0; resno<comp->numresolutions; resno++) {
+ int dx, dy;
+ res=&comp->resolutions[resno];
+ dx=comp->dx*(1<<(res->pdx+comp->numresolutions-1-resno));
+ dy=comp->dy*(1<<(res->pdy+comp->numresolutions-1-resno));
+ pi->dx=!pi->dx?dx:int_min(pi->dx, dx);
+ pi->dy=!pi->dy?dy:int_min(pi->dy, dy);
+ }
+ }
+ }
+ for (pi->resno=pi->poc.resno0; pi->resno<pi->poc.resno1; pi->resno++) {
+ for (pi->y=pi->ty0; pi->y<pi->ty1; pi->y+=pi->dy-(pi->y%pi->dy)) {
+ for (pi->x=pi->tx0; pi->x<pi->tx1; pi->x+=pi->dx-(pi->x%pi->dx)) {
+ for (pi->compno=pi->poc.compno0; pi->compno<pi->poc.compno1; pi->compno++) {
+ int levelno;
+ int trx0, try0;
+ int rpx, rpy;
+ int prci, prcj;
+ comp=&pi->comps[pi->compno];
+ if (pi->resno>=comp->numresolutions) {
+ continue;
+ }
+ res=&comp->resolutions[pi->resno];
+ levelno=comp->numresolutions-1-pi->resno;
+ trx0=int_ceildiv(pi->tx0, comp->dx<<levelno);
+ try0=int_ceildiv(pi->ty0, comp->dy<<levelno);
+ rpx=res->pdx+levelno;
+ rpy=res->pdy+levelno;
+ if (!(pi->x%(comp->dx<<rpx)==0||(pi->x==pi->tx0&&(trx0<<levelno)%(1<<rpx)))) {
+ continue;
+ }
+ if (!(pi->y%(comp->dy<<rpy)==0||(pi->y==pi->ty0&&(try0<<levelno)%(1<<rpx)))) {
+ continue;
+ }
+ prci=int_floordivpow2(int_ceildiv(pi->x, comp->dx<<levelno), res->pdx)-int_floordivpow2(trx0, res->pdx);
+ prcj=int_floordivpow2(int_ceildiv(pi->y, comp->dy<<levelno), res->pdy)-int_floordivpow2(try0, res->pdy);
+ pi->precno=prci+prcj*res->pw;
+ for (pi->layno=0; pi->layno<pi->poc.layno1; pi->layno++) {
+ if (!pi->include[pi->layno][pi->resno][pi->compno][pi->precno])
+ {
+ pi->include[pi->layno][pi->resno][pi->compno][pi->precno]=1;
+ return 1;
+ }
+ skip: ;
+ }
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+/// <summary>
+/// Get next packet in precinct-component-resolution-layer order.
+/// </summary>
+int pi_next_pcrl(pi_iterator_t *pi) {
+ pi_comp_t *comp;
+ pi_resolution_t *res;
+ if (!pi->first) {
+ comp=&pi->comps[pi->compno];
+ goto skip;
+ } else {
+ int compno, resno;
+ pi->first=0;
+ pi->dx=0;
+ pi->dy=0;
+ for (compno=0; compno<pi->numcomps; compno++) {
+ comp=&pi->comps[compno];
+ for (resno=0; resno<comp->numresolutions; resno++) {
+ int dx, dy;
+ res=&comp->resolutions[resno];
+ dx=comp->dx*(1<<(res->pdx+comp->numresolutions-1-resno));
+ dy=comp->dy*(1<<(res->pdy+comp->numresolutions-1-resno));
+ pi->dx=!pi->dx?dx:int_min(pi->dx, dx);
+ pi->dy=!pi->dy?dy:int_min(pi->dy, dy);
+ }
+ }
+ }
+ for (pi->y=pi->ty0; pi->y<pi->ty1; pi->y+=pi->dy-(pi->y%pi->dy)) {
+ for (pi->x=pi->tx0; pi->x<pi->tx1; pi->x+=pi->dx-(pi->x%pi->dx)) {
+ for (pi->compno=pi->poc.compno0; pi->compno<pi->poc.compno1; pi->compno++) {
+ comp=&pi->comps[pi->compno];
+ for (pi->resno=pi->poc.resno0; pi->resno<int_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
+ int levelno;
+ int trx0, try0;
+ int rpx, rpy;
+ int prci, prcj;
+ res=&comp->resolutions[pi->resno];
+ levelno=comp->numresolutions-1-pi->resno;
+ trx0=int_ceildiv(pi->tx0, comp->dx<<levelno);
+ try0=int_ceildiv(pi->ty0, comp->dy<<levelno);
+ rpx=res->pdx+levelno;
+ rpy=res->pdy+levelno;
+ if (!(pi->x%(comp->dx<<rpx)==0||(pi->x==pi->tx0&&(trx0<<levelno)%(1<<rpx)))) {
+ continue;
+ }
+ if (!(pi->y%(comp->dy<<rpy)==0||(pi->y==pi->ty0&&(try0<<levelno)%(1<<rpx)))) {
+ continue;
+ }
+ prci=int_floordivpow2(int_ceildiv(pi->x, comp->dx<<levelno), res->pdx)-int_floordivpow2(trx0, res->pdx);
+ prcj=int_floordivpow2(int_ceildiv(pi->y, comp->dy<<levelno), res->pdy)-int_floordivpow2(try0, res->pdy);
+ pi->precno=prci+prcj*res->pw;
+ for (pi->layno=0; pi->layno<pi->poc.layno1; pi->layno++) {
+ if (!pi->include[pi->layno][pi->resno][pi->compno][pi->precno])
+ {
+ pi->include[pi->layno][pi->resno][pi->compno][pi->precno]=1;
+ return 1;
+ }
+ skip: ;
+ }
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+/// <summary>
+/// Get next packet in component-precinct-resolution-layer order.
+/// </summary>
+int pi_next_cprl(pi_iterator_t *pi) {
+ pi_comp_t *comp;
+ pi_resolution_t *res;
+ if (!pi->first) {
+ comp=&pi->comps[pi->compno];
+ goto skip;
+ } else {
+ pi->first=0;
+ }
+ for (pi->compno=pi->poc.compno0; pi->compno<pi->poc.compno1; pi->compno++) {
+ int resno;
+ comp=&pi->comps[pi->compno];
+ pi->dx=0;
+ pi->dy=0;
+ for (resno=0; resno<comp->numresolutions; resno++) {
+ int dx, dy;
+ res=&comp->resolutions[resno];
+ dx=comp->dx*(1<<(res->pdx+comp->numresolutions-1-resno));
+ dy=comp->dy*(1<<(res->pdy+comp->numresolutions-1-resno));
+ pi->dx=!pi->dx?dx:int_min(pi->dx, dx);
+ pi->dy=!pi->dy?dy:int_min(pi->dy, dy);
+ }
+ for (pi->y=pi->ty0; pi->y<pi->ty1; pi->y+=pi->dy-(pi->y%pi->dy)) {
+ for (pi->x=pi->tx0; pi->x<pi->tx1; pi->x+=pi->dx-(pi->x%pi->dx)) {
+ for (pi->resno=pi->poc.resno0; pi->resno<int_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
+ int levelno;
+ int trx0, try0;
+ int rpx, rpy;
+ int prci, prcj;
+ res=&comp->resolutions[pi->resno];
+ levelno=comp->numresolutions-1-pi->resno;
+ trx0=int_ceildiv(pi->tx0, comp->dx<<levelno);
+ try0=int_ceildiv(pi->ty0, comp->dy<<levelno);
+ rpx=res->pdx+levelno;
+ rpy=res->pdy+levelno;
+ if (!(pi->x%(comp->dx<<rpx)==0||(pi->x==pi->tx0&&(trx0<<levelno)%(1<<rpx)))) {
+ continue;
+ }
+ if (!(pi->y%(comp->dy<<rpy)==0||(pi->y==pi->ty0&&(try0<<levelno)%(1<<rpx)))) {
+ continue;
+ }
+ prci=int_floordivpow2(int_ceildiv(pi->x, comp->dx<<levelno), res->pdx)-int_floordivpow2(trx0, res->pdx);
+ prcj=int_floordivpow2(int_ceildiv(pi->y, comp->dy<<levelno), res->pdy)-int_floordivpow2(try0, res->pdy);
+ pi->precno=prci+prcj*res->pw;
+ for (pi->layno=0; pi->layno<pi->poc.layno1; pi->layno++) {
+ if (!pi->include[pi->layno][pi->resno][pi->compno][pi->precno])
+ {
+ pi->include[pi->layno][pi->resno][pi->compno][pi->precno]=1;
+ return 1;
+ }
+ skip: ;
+ }
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+/// <summary>
+/// Get next packet.
+/// </summary>
+int pi_next(pi_iterator_t *pi) {
+ switch (pi->poc.prg) {
+ case 0:
+ return pi_next_lrcp(pi);
+ case 1:
+ return pi_next_rlcp(pi);
+ case 2:
+ return pi_next_rpcl(pi);
+ case 3:
+ return pi_next_pcrl(pi);
+ case 4:
+ return pi_next_cprl(pi);
+ }
+ return 0;
+}
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