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-rw-r--r--libopenjpeg/pi.c442
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diff --git a/libopenjpeg/pi.c b/libopenjpeg/pi.c
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-/*
- * Copyright (c) 2001-2002, David Janssens
- * Copyright (c) 2003-2004, Yannick Verschueren
- * Copyright (c) 2003-2004, 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, i;
- int compno, resno, pino;
- 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;
- }
- }
-
- tccp = &tcp->tccps[0];
- pi[pino].step_p=1;
- pi[pino].step_c=100*pi[pino].step_p;
- pi[pino].step_r=img->numcomps*pi[pino].step_c;
- pi[pino].step_l=maxres*pi[pino].step_r;
-
- if (pino==0)
- {
- pi[pino].include = (short int*)malloc(img->numcomps*maxres*tcp->numlayers*100*sizeof(short int));
- for (i=0 ; i<img->numcomps*maxres*tcp->numlayers*100; i++)
- pi[pino].include[i]=0;
- }
- /* pi[pino].include=(short int*)calloc(img->numcomps*maxres*tcp->numlayers*1000,sizeof(short int));*/
- else
- pi[pino].include=pi[pino-1].include;
-
- if (tcp->POC == 0) {
- 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.
- *
- * pi: packet iterator to modify
- * </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->step_l+pi->resno*pi->step_r+pi->compno*pi->step_c+pi->precno*pi->step_p]){
- pi->include[pi->layno*pi->step_l+pi->resno*pi->step_r+pi->compno*pi->step_c+pi->precno*pi->step_p] = 1;
- return 1;
- }
- skip:;
- }
- }
- }
- }
- return 0;
-}
-
-/* <summary>
- * Get next packet in resolution-layer-component-precinct order.
- *
- * pi: packet iterator to modify
- * </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->step_l+pi->resno*pi->step_r+pi->compno*pi->step_c+pi->precno*pi->step_p]){
- pi->include[pi->layno*pi->step_l+pi->resno*pi->step_r+pi->compno*pi->step_c+pi->precno*pi->step_p] = 1;
- return 1;
- }
- skip:;
- }
- }
- }
- }
- return 0;
-}
-
-/* <summary>
- * Get next packet in resolution-precinct-component-layer order.
- *
- * pi: packet iterator to modify
- * </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->step_l+pi->resno*pi->step_r+pi->compno*pi->step_c+pi->precno*pi->step_p]){
- pi->include[pi->layno*pi->step_l+pi->resno*pi->step_r+pi->compno*pi->step_c+pi->precno*pi->step_p] = 1;
- return 1;
- }
- skip:;
- }
- }
- }
- }
- }
- return 0;
-}
-
-/* <summary>
- * Get next packet in precinct-component-resolution-layer order.
- *
- * pi: packet iterator to modify
- * </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->step_l+pi->resno*pi->step_r+pi->compno*pi->step_c+pi->precno*pi->step_p]){
- pi->include[pi->layno*pi->step_l+pi->resno*pi->step_r+pi->compno*pi->step_c+pi->precno*pi->step_p] = 1;
- return 1;
- }
- skip:;
- }
- }
- }
- }
- }
- return 0;
-}
-
-/* <summary>
- * Get next packet in component-precinct-resolution-layer order.
- *
- * pi: packet iterator to modify
- * </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->step_l+pi->resno*pi->step_r+pi->compno*pi->step_c+pi->precno*pi->step_p]){
- pi->include[pi->layno*pi->step_l+pi->resno*pi->step_r+pi->compno*pi->step_c+pi->precno*pi->step_p] = 1;
- return 1;
- }
- skip:;
- }
- }
- }
- }
- }
- return 0;
-}
-
-/* <summary>
- * Get next packet.
- *
- * pi: packet iterator to modify
- * </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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