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opencv/3rdparty/openjpeg/openjp2/pi.c

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/*
* The copyright in this software is being made available under the 2-clauses
* BSD License, included below. This software may be subject to other third
* party and contributor rights, including patent rights, and no such rights
* are granted under this license.
*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2007, Francois-Olivier Devaux
* Copyright (c) 2003-2014, Antonin Descampe
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* Copyright (c) 2006-2007, Parvatha Elangovan
* 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.
*/
#define OPJ_UINT32_SEMANTICALLY_BUT_INT32 OPJ_UINT32
#include "opj_includes.h"
/** @defgroup PI PI - Implementation of a packet iterator */
/*@{*/
/** @name Local static functions */
/*@{*/
/**
Get next packet in layer-resolution-component-precinct order.
@param pi packet iterator to modify
@return returns false if pi pointed to the last packet or else returns true
*/
static OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi);
/**
Get next packet in resolution-layer-component-precinct order.
@param pi packet iterator to modify
@return returns false if pi pointed to the last packet or else returns true
*/
static OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi);
/**
Get next packet in resolution-precinct-component-layer order.
@param pi packet iterator to modify
@return returns false if pi pointed to the last packet or else returns true
*/
static OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi);
/**
Get next packet in precinct-component-resolution-layer order.
@param pi packet iterator to modify
@return returns false if pi pointed to the last packet or else returns true
*/
static OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi);
/**
Get next packet in component-precinct-resolution-layer order.
@param pi packet iterator to modify
@return returns false if pi pointed to the last packet or else returns true
*/
static OPJ_BOOL opj_pi_next_cprl(opj_pi_iterator_t * pi);
/**
* Updates the coding parameters if the encoding is used with Progression order changes and final (or cinema parameters are used).
*
* @param p_cp the coding parameters to modify
* @param p_tileno the tile index being concerned.
* @param p_tx0 X0 parameter for the tile
* @param p_tx1 X1 parameter for the tile
* @param p_ty0 Y0 parameter for the tile
* @param p_ty1 Y1 parameter for the tile
* @param p_max_prec the maximum precision for all the bands of the tile
* @param p_max_res the maximum number of resolutions for all the poc inside the tile.
* @param p_dx_min the minimum dx of all the components of all the resolutions for the tile.
* @param p_dy_min the minimum dy of all the components of all the resolutions for the tile.
*/
static void opj_pi_update_encode_poc_and_final(opj_cp_t *p_cp,
OPJ_UINT32 p_tileno,
OPJ_UINT32 p_tx0,
OPJ_UINT32 p_tx1,
OPJ_UINT32 p_ty0,
OPJ_UINT32 p_ty1,
OPJ_UINT32 p_max_prec,
OPJ_UINT32 p_max_res,
OPJ_UINT32 p_dx_min,
OPJ_UINT32 p_dy_min);
/**
* Updates the coding parameters if the encoding is not used with Progression order changes and final (and cinema parameters are used).
*
* @param p_cp the coding parameters to modify
* @param p_num_comps the number of components
* @param p_tileno the tile index being concerned.
* @param p_tx0 X0 parameter for the tile
* @param p_tx1 X1 parameter for the tile
* @param p_ty0 Y0 parameter for the tile
* @param p_ty1 Y1 parameter for the tile
* @param p_max_prec the maximum precision for all the bands of the tile
* @param p_max_res the maximum number of resolutions for all the poc inside the tile.
* @param p_dx_min the minimum dx of all the components of all the resolutions for the tile.
* @param p_dy_min the minimum dy of all the components of all the resolutions for the tile.
*/
static void opj_pi_update_encode_not_poc(opj_cp_t *p_cp,
OPJ_UINT32 p_num_comps,
OPJ_UINT32 p_tileno,
OPJ_UINT32 p_tx0,
OPJ_UINT32 p_tx1,
OPJ_UINT32 p_ty0,
OPJ_UINT32 p_ty1,
OPJ_UINT32 p_max_prec,
OPJ_UINT32 p_max_res,
OPJ_UINT32 p_dx_min,
OPJ_UINT32 p_dy_min);
/**
* Gets the encoding parameters needed to update the coding parameters and all the pocs.
*
* @param p_image the image being encoded.
* @param p_cp the coding parameters.
* @param tileno the tile index of the tile being encoded.
* @param p_tx0 pointer that will hold the X0 parameter for the tile
* @param p_tx1 pointer that will hold the X1 parameter for the tile
* @param p_ty0 pointer that will hold the Y0 parameter for the tile
* @param p_ty1 pointer that will hold the Y1 parameter for the tile
* @param p_max_prec pointer that will hold the maximum precision for all the bands of the tile
* @param p_max_res pointer that will hold the maximum number of resolutions for all the poc inside the tile.
* @param p_dx_min pointer that will hold the minimum dx of all the components of all the resolutions for the tile.
* @param p_dy_min pointer that will hold the minimum dy of all the components of all the resolutions for the tile.
*/
static void opj_get_encoding_parameters(const opj_image_t *p_image,
const opj_cp_t *p_cp,
OPJ_UINT32 tileno,
OPJ_UINT32 * p_tx0,
OPJ_UINT32 * p_tx1,
OPJ_UINT32 * p_ty0,
OPJ_UINT32 * p_ty1,
OPJ_UINT32 * p_dx_min,
OPJ_UINT32 * p_dy_min,
OPJ_UINT32 * p_max_prec,
OPJ_UINT32 * p_max_res);
/**
* Gets the encoding parameters needed to update the coding parameters and all the pocs.
* The precinct widths, heights, dx and dy for each component at each resolution will be stored as well.
* the last parameter of the function should be an array of pointers of size nb components, each pointer leading
* to an area of size 4 * max_res. The data is stored inside this area with the following pattern :
* dx_compi_res0 , dy_compi_res0 , w_compi_res0, h_compi_res0 , dx_compi_res1 , dy_compi_res1 , w_compi_res1, h_compi_res1 , ...
*
* @param p_image the image being encoded.
* @param p_cp the coding parameters.
* @param tileno the tile index of the tile being encoded.
* @param p_tx0 pointer that will hold the X0 parameter for the tile
* @param p_tx1 pointer that will hold the X1 parameter for the tile
* @param p_ty0 pointer that will hold the Y0 parameter for the tile
* @param p_ty1 pointer that will hold the Y1 parameter for the tile
* @param p_max_prec pointer that will hold the maximum precision for all the bands of the tile
* @param p_max_res pointer that will hold the maximum number of resolutions for all the poc inside the tile.
* @param p_dx_min pointer that will hold the minimum dx of all the components of all the resolutions for the tile.
* @param p_dy_min pointer that will hold the minimum dy of all the components of all the resolutions for the tile.
* @param p_resolutions pointer to an area corresponding to the one described above.
*/
static void opj_get_all_encoding_parameters(const opj_image_t *p_image,
const opj_cp_t *p_cp,
OPJ_UINT32 tileno,
OPJ_UINT32 * p_tx0,
OPJ_UINT32 * p_tx1,
OPJ_UINT32 * p_ty0,
OPJ_UINT32 * p_ty1,
OPJ_UINT32 * p_dx_min,
OPJ_UINT32 * p_dy_min,
OPJ_UINT32 * p_max_prec,
OPJ_UINT32 * p_max_res,
OPJ_UINT32 ** p_resolutions);
/**
* Allocates memory for a packet iterator. Data and data sizes are set by this operation.
* No other data is set. The include section of the packet iterator is not allocated.
*
* @param p_image the image used to initialize the packet iterator (in fact only the number of components is relevant.
* @param p_cp the coding parameters.
* @param tileno the index of the tile from which creating the packet iterator.
* @param manager Event manager
*/
static opj_pi_iterator_t * opj_pi_create(const opj_image_t *p_image,
const opj_cp_t *p_cp,
OPJ_UINT32 tileno,
opj_event_mgr_t* manager);
/**
* FIXME DOC
*/
static void opj_pi_update_decode_not_poc(opj_pi_iterator_t * p_pi,
opj_tcp_t * p_tcp,
OPJ_UINT32 p_max_precision,
OPJ_UINT32 p_max_res);
/**
* FIXME DOC
*/
static void opj_pi_update_decode_poc(opj_pi_iterator_t * p_pi,
opj_tcp_t * p_tcp,
OPJ_UINT32 p_max_precision,
OPJ_UINT32 p_max_res);
/**
* FIXME DOC
*/
static OPJ_BOOL opj_pi_check_next_level(OPJ_INT32 pos,
opj_cp_t *cp,
OPJ_UINT32 tileno,
OPJ_UINT32 pino,
const OPJ_CHAR *prog);
/*@}*/
/*@}*/
/*
==========================================================
local functions
==========================================================
*/
static OPJ_BOOL opj_pi_next_lrcp(opj_pi_iterator_t * pi)
{
opj_pi_comp_t *comp = NULL;
opj_pi_resolution_t *res = NULL;
OPJ_UINT32 index = 0;
if (pi->poc.compno0 >= pi->numcomps ||
pi->poc.compno1 >= pi->numcomps + 1) {
opj_event_msg(pi->manager, EVT_ERROR,
"opj_pi_next_lrcp(): invalid compno0/compno1\n");
return OPJ_FALSE;
}
if (!pi->first) {
comp = &pi->comps[pi->compno];
res = &comp->resolutions[pi->resno];
goto LABEL_SKIP;
} else {
pi->first = 0;
}
for (pi->layno = pi->poc.layno0; 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];
if (!pi->tp_on) {
pi->poc.precno1 = res->pw * res->ph;
}
for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno *
pi->step_c + pi->precno * pi->step_p;
/* Avoids index out of bounds access with */
/* id_000098,sig_11,src_005411,op_havoc,rep_2 of */
/* https://github.com/uclouvain/openjpeg/issues/938 */
/* Not sure if this is the most clever fix. Perhaps */
/* include should be resized when a POC arises, or */
/* the POC should be rejected */
if (index >= pi->include_size) {
opj_event_msg(pi->manager, EVT_ERROR, "Invalid access to pi->include");
return OPJ_FALSE;
}
if (!pi->include[index]) {
pi->include[index] = 1;
return OPJ_TRUE;
}
LABEL_SKIP:
;
}
}
}
}
return OPJ_FALSE;
}
static OPJ_BOOL opj_pi_next_rlcp(opj_pi_iterator_t * pi)
{
opj_pi_comp_t *comp = NULL;
opj_pi_resolution_t *res = NULL;
OPJ_UINT32 index = 0;
if (pi->poc.compno0 >= pi->numcomps ||
pi->poc.compno1 >= pi->numcomps + 1) {
opj_event_msg(pi->manager, EVT_ERROR,
"opj_pi_next_rlcp(): invalid compno0/compno1\n");
return OPJ_FALSE;
}
if (!pi->first) {
comp = &pi->comps[pi->compno];
res = &comp->resolutions[pi->resno];
goto LABEL_SKIP;
} else {
pi->first = 0;
}
for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
for (pi->layno = pi->poc.layno0; 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];
if (!pi->tp_on) {
pi->poc.precno1 = res->pw * res->ph;
}
for (pi->precno = pi->poc.precno0; pi->precno < pi->poc.precno1; pi->precno++) {
index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno *
pi->step_c + pi->precno * pi->step_p;
if (index >= pi->include_size) {
opj_event_msg(pi->manager, EVT_ERROR, "Invalid access to pi->include");
return OPJ_FALSE;
}
if (!pi->include[index]) {
pi->include[index] = 1;
return OPJ_TRUE;
}
LABEL_SKIP:
;
}
}
}
}
return OPJ_FALSE;
}
static OPJ_BOOL opj_pi_next_rpcl(opj_pi_iterator_t * pi)
{
opj_pi_comp_t *comp = NULL;
opj_pi_resolution_t *res = NULL;
OPJ_UINT32 index = 0;
if (pi->poc.compno0 >= pi->numcomps ||
pi->poc.compno1 >= pi->numcomps + 1) {
opj_event_msg(pi->manager, EVT_ERROR,
"opj_pi_next_rpcl(): invalid compno0/compno1\n");
return OPJ_FALSE;
}
if (!pi->first) {
goto LABEL_SKIP;
} else {
OPJ_UINT32 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++) {
OPJ_UINT32 dx, dy;
res = &comp->resolutions[resno];
if (res->pdx + comp->numresolutions - 1 - resno < 32 &&
comp->dx <= UINT_MAX / (1u << (res->pdx + comp->numresolutions - 1 - resno))) {
dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
}
if (res->pdy + comp->numresolutions - 1 - resno < 32 &&
comp->dy <= UINT_MAX / (1u << (res->pdy + comp->numresolutions - 1 - resno))) {
dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
}
}
}
if (pi->dx == 0 || pi->dy == 0) {
return OPJ_FALSE;
}
}
if (!pi->tp_on) {
pi->poc.ty0 = pi->ty0;
pi->poc.tx0 = pi->tx0;
pi->poc.ty1 = pi->ty1;
pi->poc.tx1 = pi->tx1;
}
for (pi->resno = pi->poc.resno0; pi->resno < pi->poc.resno1; pi->resno++) {
for (pi->y = (OPJ_UINT32)pi->poc.ty0; pi->y < (OPJ_UINT32)pi->poc.ty1;
pi->y += (pi->dy - (pi->y % pi->dy))) {
for (pi->x = (OPJ_UINT32)pi->poc.tx0; pi->x < (OPJ_UINT32)pi->poc.tx1;
pi->x += (pi->dx - (pi->x % pi->dx))) {
for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
OPJ_UINT32 levelno;
OPJ_UINT32 trx0, try0;
OPJ_UINT32 trx1, try1;
OPJ_UINT32 rpx, rpy;
OPJ_UINT32 prci, prcj;
comp = &pi->comps[pi->compno];
if (pi->resno >= comp->numresolutions) {
continue;
}
res = &comp->resolutions[pi->resno];
levelno = comp->numresolutions - 1 - pi->resno;
/* Avoids division by zero */
/* Relates to id_000004,sig_06,src_000679,op_arith8,pos_49,val_-17 */
/* of https://github.com/uclouvain/openjpeg/issues/938 */
if (levelno >= 32 ||
((comp->dx << levelno) >> levelno) != comp->dx ||
((comp->dy << levelno) >> levelno) != comp->dy) {
continue;
}
if ((comp->dx << levelno) > INT_MAX ||
(comp->dy << levelno) > INT_MAX) {
continue;
}
trx0 = opj_uint_ceildiv(pi->tx0, (comp->dx << levelno));
try0 = opj_uint_ceildiv(pi->ty0, (comp->dy << levelno));
trx1 = opj_uint_ceildiv(pi->tx1, (comp->dx << levelno));
try1 = opj_uint_ceildiv(pi->ty1, (comp->dy << levelno));
rpx = res->pdx + levelno;
rpy = res->pdy + levelno;
/* To avoid divisions by zero / undefined behaviour on shift */
/* in below tests */
/* Fixes reading id:000026,sig:08,src:002419,op:int32,pos:60,val:+32 */
/* of https://github.com/uclouvain/openjpeg/issues/938 */
if (rpx >= 31 || ((comp->dx << rpx) >> rpx) != comp->dx ||
rpy >= 31 || ((comp->dy << rpy) >> rpy) != comp->dy) {
continue;
}
/* See ISO-15441. B.12.1.3 Resolution level-position-component-layer progression */
if (!((pi->y % (comp->dy << rpy) == 0) || ((pi->y == pi->ty0) &&
((try0 << levelno) % (1U << rpy))))) {
continue;
}
if (!((pi->x % (comp->dx << rpx) == 0) || ((pi->x == pi->tx0) &&
((trx0 << levelno) % (1U << rpx))))) {
continue;
}
if ((res->pw == 0) || (res->ph == 0)) {
continue;
}
if ((trx0 == trx1) || (try0 == try1)) {
continue;
}
prci = opj_uint_floordivpow2(opj_uint_ceildiv(pi->x,
(comp->dx << levelno)), res->pdx)
- opj_uint_floordivpow2(trx0, res->pdx);
prcj = opj_uint_floordivpow2(opj_uint_ceildiv(pi->y,
(comp->dy << levelno)), res->pdy)
- opj_uint_floordivpow2(try0, res->pdy);
pi->precno = prci + prcj * res->pw;
for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno *
pi->step_c + pi->precno * pi->step_p;
if (index >= pi->include_size) {
opj_event_msg(pi->manager, EVT_ERROR, "Invalid access to pi->include");
return OPJ_FALSE;
}
if (!pi->include[index]) {
pi->include[index] = 1;
return OPJ_TRUE;
}
LABEL_SKIP:
;
}
}
}
}
}
return OPJ_FALSE;
}
static OPJ_BOOL opj_pi_next_pcrl(opj_pi_iterator_t * pi)
{
opj_pi_comp_t *comp = NULL;
opj_pi_resolution_t *res = NULL;
OPJ_UINT32 index = 0;
if (pi->poc.compno0 >= pi->numcomps ||
pi->poc.compno1 >= pi->numcomps + 1) {
opj_event_msg(pi->manager, EVT_ERROR,
"opj_pi_next_pcrl(): invalid compno0/compno1\n");
return OPJ_FALSE;
}
if (!pi->first) {
comp = &pi->comps[pi->compno];
goto LABEL_SKIP;
} else {
OPJ_UINT32 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++) {
OPJ_UINT32 dx, dy;
res = &comp->resolutions[resno];
if (res->pdx + comp->numresolutions - 1 - resno < 32 &&
comp->dx <= UINT_MAX / (1u << (res->pdx + comp->numresolutions - 1 - resno))) {
dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
}
if (res->pdy + comp->numresolutions - 1 - resno < 32 &&
comp->dy <= UINT_MAX / (1u << (res->pdy + comp->numresolutions - 1 - resno))) {
dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
}
}
}
if (pi->dx == 0 || pi->dy == 0) {
return OPJ_FALSE;
}
}
if (!pi->tp_on) {
pi->poc.ty0 = pi->ty0;
pi->poc.tx0 = pi->tx0;
pi->poc.ty1 = pi->ty1;
pi->poc.tx1 = pi->tx1;
}
for (pi->y = (OPJ_UINT32)pi->poc.ty0; pi->y < (OPJ_UINT32)pi->poc.ty1;
pi->y += (pi->dy - (pi->y % pi->dy))) {
for (pi->x = (OPJ_UINT32)pi->poc.tx0; pi->x < (OPJ_UINT32)pi->poc.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 < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
OPJ_UINT32 levelno;
OPJ_UINT32 trx0, try0;
OPJ_UINT32 trx1, try1;
OPJ_UINT32 rpx, rpy;
OPJ_UINT32 prci, prcj;
res = &comp->resolutions[pi->resno];
levelno = comp->numresolutions - 1 - pi->resno;
/* Avoids division by zero */
/* Relates to id_000004,sig_06,src_000679,op_arith8,pos_49,val_-17 */
/* of https://github.com/uclouvain/openjpeg/issues/938 */
if (levelno >= 32 ||
((comp->dx << levelno) >> levelno) != comp->dx ||
((comp->dy << levelno) >> levelno) != comp->dy) {
continue;
}
if ((comp->dx << levelno) > INT_MAX ||
(comp->dy << levelno) > INT_MAX) {
continue;
}
trx0 = opj_uint_ceildiv(pi->tx0, (comp->dx << levelno));
try0 = opj_uint_ceildiv(pi->ty0, (comp->dy << levelno));
trx1 = opj_uint_ceildiv(pi->tx1, (comp->dx << levelno));
try1 = opj_uint_ceildiv(pi->ty1, (comp->dy << levelno));
rpx = res->pdx + levelno;
rpy = res->pdy + levelno;
/* To avoid divisions by zero / undefined behaviour on shift */
/* in below tests */
/* Relates to id:000019,sig:08,src:001098,op:flip1,pos:49 */
/* of https://github.com/uclouvain/openjpeg/issues/938 */
if (rpx >= 31 || ((comp->dx << rpx) >> rpx) != comp->dx ||
rpy >= 31 || ((comp->dy << rpy) >> rpy) != comp->dy) {
continue;
}
/* See ISO-15441. B.12.1.4 Position-component-resolution level-layer progression */
if (!((pi->y % (comp->dy << rpy) == 0) || ((pi->y == pi->ty0) &&
((try0 << levelno) % (1U << rpy))))) {
continue;
}
if (!((pi->x % (comp->dx << rpx) == 0) || ((pi->x == pi->tx0) &&
((trx0 << levelno) % (1U << rpx))))) {
continue;
}
if ((res->pw == 0) || (res->ph == 0)) {
continue;
}
if ((trx0 == trx1) || (try0 == try1)) {
continue;
}
prci = opj_uint_floordivpow2(opj_uint_ceildiv(pi->x,
(comp->dx << levelno)), res->pdx)
- opj_uint_floordivpow2(trx0, res->pdx);
prcj = opj_uint_floordivpow2(opj_uint_ceildiv(pi->y,
(comp->dy << levelno)), res->pdy)
- opj_uint_floordivpow2(try0, res->pdy);
pi->precno = prci + prcj * res->pw;
for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno *
pi->step_c + pi->precno * pi->step_p;
if (index >= pi->include_size) {
opj_event_msg(pi->manager, EVT_ERROR, "Invalid access to pi->include");
return OPJ_FALSE;
}
if (!pi->include[index]) {
pi->include[index] = 1;
return OPJ_TRUE;
}
LABEL_SKIP:
;
}
}
}
}
}
return OPJ_FALSE;
}
static OPJ_BOOL opj_pi_next_cprl(opj_pi_iterator_t * pi)
{
opj_pi_comp_t *comp = NULL;
opj_pi_resolution_t *res = NULL;
OPJ_UINT32 index = 0;
if (pi->poc.compno0 >= pi->numcomps ||
pi->poc.compno1 >= pi->numcomps + 1) {
opj_event_msg(pi->manager, EVT_ERROR,
"opj_pi_next_cprl(): invalid compno0/compno1\n");
return OPJ_FALSE;
}
if (!pi->first) {
comp = &pi->comps[pi->compno];
goto LABEL_SKIP;
} else {
pi->first = 0;
}
for (pi->compno = pi->poc.compno0; pi->compno < pi->poc.compno1; pi->compno++) {
OPJ_UINT32 resno;
comp = &pi->comps[pi->compno];
pi->dx = 0;
pi->dy = 0;
for (resno = 0; resno < comp->numresolutions; resno++) {
OPJ_UINT32 dx, dy;
res = &comp->resolutions[resno];
if (res->pdx + comp->numresolutions - 1 - resno < 32 &&
comp->dx <= UINT_MAX / (1u << (res->pdx + comp->numresolutions - 1 - resno))) {
dx = comp->dx * (1u << (res->pdx + comp->numresolutions - 1 - resno));
pi->dx = !pi->dx ? dx : opj_uint_min(pi->dx, dx);
}
if (res->pdy + comp->numresolutions - 1 - resno < 32 &&
comp->dy <= UINT_MAX / (1u << (res->pdy + comp->numresolutions - 1 - resno))) {
dy = comp->dy * (1u << (res->pdy + comp->numresolutions - 1 - resno));
pi->dy = !pi->dy ? dy : opj_uint_min(pi->dy, dy);
}
}
if (pi->dx == 0 || pi->dy == 0) {
return OPJ_FALSE;
}
if (!pi->tp_on) {
pi->poc.ty0 = pi->ty0;
pi->poc.tx0 = pi->tx0;
pi->poc.ty1 = pi->ty1;
pi->poc.tx1 = pi->tx1;
}
for (pi->y = (OPJ_UINT32)pi->poc.ty0; pi->y < (OPJ_UINT32)pi->poc.ty1;
pi->y += (pi->dy - (pi->y % pi->dy))) {
for (pi->x = (OPJ_UINT32)pi->poc.tx0; pi->x < (OPJ_UINT32)pi->poc.tx1;
pi->x += (pi->dx - (pi->x % pi->dx))) {
for (pi->resno = pi->poc.resno0;
pi->resno < opj_uint_min(pi->poc.resno1, comp->numresolutions); pi->resno++) {
OPJ_UINT32 levelno;
OPJ_UINT32 trx0, try0;
OPJ_UINT32 trx1, try1;
OPJ_UINT32 rpx, rpy;
OPJ_UINT32 prci, prcj;
res = &comp->resolutions[pi->resno];
levelno = comp->numresolutions - 1 - pi->resno;
/* Avoids division by zero on id_000004,sig_06,src_000679,op_arith8,pos_49,val_-17 */
/* of https://github.com/uclouvain/openjpeg/issues/938 */
if (levelno >= 32 ||
((comp->dx << levelno) >> levelno) != comp->dx ||
((comp->dy << levelno) >> levelno) != comp->dy) {
continue;
}
if ((comp->dx << levelno) > INT_MAX ||
(comp->dy << levelno) > INT_MAX) {
continue;
}
trx0 = opj_uint_ceildiv(pi->tx0, (comp->dx << levelno));
try0 = opj_uint_ceildiv(pi->ty0, (comp->dy << levelno));
trx1 = opj_uint_ceildiv(pi->tx1, (comp->dx << levelno));
try1 = opj_uint_ceildiv(pi->ty1, (comp->dy << levelno));
rpx = res->pdx + levelno;
rpy = res->pdy + levelno;
/* To avoid divisions by zero / undefined behaviour on shift */
/* in below tests */
/* Fixes reading id:000019,sig:08,src:001098,op:flip1,pos:49 */
/* of https://github.com/uclouvain/openjpeg/issues/938 */
if (rpx >= 31 || ((comp->dx << rpx) >> rpx) != comp->dx ||
rpy >= 31 || ((comp->dy << rpy) >> rpy) != comp->dy) {
continue;
}
/* See ISO-15441. B.12.1.5 Component-position-resolution level-layer progression */
if (!((pi->y % (comp->dy << rpy) == 0) || ((pi->y == pi->ty0) &&
((try0 << levelno) % (1U << rpy))))) {
continue;
}
if (!((pi->x % (comp->dx << rpx) == 0) || ((pi->x == pi->tx0) &&
((trx0 << levelno) % (1U << rpx))))) {
continue;
}
if ((res->pw == 0) || (res->ph == 0)) {
continue;
}
if ((trx0 == trx1) || (try0 == try1)) {
continue;
}
prci = opj_uint_floordivpow2(opj_uint_ceildiv(pi->x,
(comp->dx << levelno)), res->pdx)
- opj_uint_floordivpow2(trx0, res->pdx);
prcj = opj_uint_floordivpow2(opj_uint_ceildiv(pi->y,
(comp->dy << levelno)), res->pdy)
- opj_uint_floordivpow2(try0, res->pdy);
pi->precno = (OPJ_UINT32)(prci + prcj * res->pw);
for (pi->layno = pi->poc.layno0; pi->layno < pi->poc.layno1; pi->layno++) {
index = pi->layno * pi->step_l + pi->resno * pi->step_r + pi->compno *
pi->step_c + pi->precno * pi->step_p;
if (index >= pi->include_size) {
opj_event_msg(pi->manager, EVT_ERROR, "Invalid access to pi->include");
return OPJ_FALSE;
}
if (!pi->include[index]) {
pi->include[index] = 1;
return OPJ_TRUE;
}
LABEL_SKIP:
;
}
}
}
}
}
return OPJ_FALSE;
}
static void opj_get_encoding_parameters(const opj_image_t *p_image,
const opj_cp_t *p_cp,
OPJ_UINT32 p_tileno,
OPJ_UINT32 * p_tx0,
OPJ_UINT32 * p_tx1,
OPJ_UINT32 * p_ty0,
OPJ_UINT32 * p_ty1,
OPJ_UINT32 * p_dx_min,
OPJ_UINT32 * p_dy_min,
OPJ_UINT32 * p_max_prec,
OPJ_UINT32 * p_max_res)
{
/* loop */
OPJ_UINT32 compno, resno;
/* pointers */
const opj_tcp_t *l_tcp = 00;
const opj_tccp_t * l_tccp = 00;
const opj_image_comp_t * l_img_comp = 00;
/* position in x and y of tile */
OPJ_UINT32 p, q;
/* non-corrected (in regard to image offset) tile offset */
OPJ_UINT32 l_tx0, l_ty0;
/* preconditions */
assert(p_cp != 00);
assert(p_image != 00);
assert(p_tileno < p_cp->tw * p_cp->th);
/* initializations */
l_tcp = &p_cp->tcps [p_tileno];
l_img_comp = p_image->comps;
l_tccp = l_tcp->tccps;
/* here calculation of tx0, tx1, ty0, ty1, maxprec, dx and dy */
p = p_tileno % p_cp->tw;
q = p_tileno / p_cp->tw;
/* find extent of tile */
l_tx0 = p_cp->tx0 + p *
p_cp->tdx; /* can't be greater than p_image->x1 so won't overflow */
*p_tx0 = opj_uint_max(l_tx0, p_image->x0);
*p_tx1 = opj_uint_min(opj_uint_adds(l_tx0, p_cp->tdx), p_image->x1);
l_ty0 = p_cp->ty0 + q *
p_cp->tdy; /* can't be greater than p_image->y1 so won't overflow */
*p_ty0 = opj_uint_max(l_ty0, p_image->y0);
*p_ty1 = opj_uint_min(opj_uint_adds(l_ty0, p_cp->tdy), p_image->y1);
/* max precision is 0 (can only grow) */
*p_max_prec = 0;
*p_max_res = 0;
/* take the largest value for dx_min and dy_min */
*p_dx_min = 0x7fffffff;
*p_dy_min = 0x7fffffff;
for (compno = 0; compno < p_image->numcomps; ++compno) {
/* arithmetic variables to calculate */
OPJ_UINT32 l_level_no;
OPJ_UINT32 l_rx0, l_ry0, l_rx1, l_ry1;
OPJ_UINT32 l_px0, l_py0, l_px1, py1;
OPJ_UINT32 l_pdx, l_pdy;
OPJ_UINT32 l_pw, l_ph;
OPJ_UINT32 l_product;
OPJ_UINT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
l_tcx0 = opj_uint_ceildiv(*p_tx0, l_img_comp->dx);
l_tcy0 = opj_uint_ceildiv(*p_ty0, l_img_comp->dy);
l_tcx1 = opj_uint_ceildiv(*p_tx1, l_img_comp->dx);
l_tcy1 = opj_uint_ceildiv(*p_ty1, l_img_comp->dy);
if (l_tccp->numresolutions > *p_max_res) {
*p_max_res = l_tccp->numresolutions;
}
/* use custom size for precincts */
for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
OPJ_UINT32 l_dx, l_dy;
/* precinct width and height */
l_pdx = l_tccp->prcw[resno];
l_pdy = l_tccp->prch[resno];
l_dx = l_img_comp->dx * (1u << (l_pdx + l_tccp->numresolutions - 1 - resno));
l_dy = l_img_comp->dy * (1u << (l_pdy + l_tccp->numresolutions - 1 - resno));
/* take the minimum size for dx for each comp and resolution */
*p_dx_min = opj_uint_min(*p_dx_min, l_dx);
*p_dy_min = opj_uint_min(*p_dy_min, l_dy);
/* various calculations of extents */
l_level_no = l_tccp->numresolutions - 1 - resno;
l_rx0 = opj_uint_ceildivpow2(l_tcx0, l_level_no);
l_ry0 = opj_uint_ceildivpow2(l_tcy0, l_level_no);
l_rx1 = opj_uint_ceildivpow2(l_tcx1, l_level_no);
l_ry1 = opj_uint_ceildivpow2(l_tcy1, l_level_no);
l_px0 = opj_uint_floordivpow2(l_rx0, l_pdx) << l_pdx;
l_py0 = opj_uint_floordivpow2(l_ry0, l_pdy) << l_pdy;
l_px1 = opj_uint_ceildivpow2(l_rx1, l_pdx) << l_pdx;
py1 = opj_uint_ceildivpow2(l_ry1, l_pdy) << l_pdy;
l_pw = (l_rx0 == l_rx1) ? 0 : ((l_px1 - l_px0) >> l_pdx);
l_ph = (l_ry0 == l_ry1) ? 0 : ((py1 - l_py0) >> l_pdy);
l_product = l_pw * l_ph;
/* update precision */
if (l_product > *p_max_prec) {
*p_max_prec = l_product;
}
}
++l_img_comp;
++l_tccp;
}
}
static void opj_get_all_encoding_parameters(const opj_image_t *p_image,
const opj_cp_t *p_cp,
OPJ_UINT32 tileno,
OPJ_UINT32 * p_tx0,
OPJ_UINT32 * p_tx1,
OPJ_UINT32 * p_ty0,
OPJ_UINT32 * p_ty1,
OPJ_UINT32 * p_dx_min,
OPJ_UINT32 * p_dy_min,
OPJ_UINT32 * p_max_prec,
OPJ_UINT32 * p_max_res,
OPJ_UINT32 ** p_resolutions)
{
/* loop*/
OPJ_UINT32 compno, resno;
/* pointers*/
const opj_tcp_t *tcp = 00;
const opj_tccp_t * l_tccp = 00;
const opj_image_comp_t * l_img_comp = 00;
/* to store l_dx, l_dy, w and h for each resolution and component.*/
OPJ_UINT32 * lResolutionPtr;
/* position in x and y of tile*/
OPJ_UINT32 p, q;
/* non-corrected (in regard to image offset) tile offset */
OPJ_UINT32 l_tx0, l_ty0;
/* preconditions in debug*/
assert(p_cp != 00);
assert(p_image != 00);
assert(tileno < p_cp->tw * p_cp->th);
/* initializations*/
tcp = &p_cp->tcps [tileno];
l_tccp = tcp->tccps;
l_img_comp = p_image->comps;
/* position in x and y of tile*/
p = tileno % p_cp->tw;
q = tileno / p_cp->tw;
/* here calculation of tx0, tx1, ty0, ty1, maxprec, l_dx and l_dy */
l_tx0 = p_cp->tx0 + p *
p_cp->tdx; /* can't be greater than p_image->x1 so won't overflow */
*p_tx0 = opj_uint_max(l_tx0, p_image->x0);
*p_tx1 = opj_uint_min(opj_uint_adds(l_tx0, p_cp->tdx), p_image->x1);
l_ty0 = p_cp->ty0 + q *
p_cp->tdy; /* can't be greater than p_image->y1 so won't overflow */
*p_ty0 = opj_uint_max(l_ty0, p_image->y0);
*p_ty1 = opj_uint_min(opj_uint_adds(l_ty0, p_cp->tdy), p_image->y1);
/* max precision and resolution is 0 (can only grow)*/
*p_max_prec = 0;
*p_max_res = 0;
/* take the largest value for dx_min and dy_min*/
*p_dx_min = 0x7fffffff;
*p_dy_min = 0x7fffffff;
for (compno = 0; compno < p_image->numcomps; ++compno) {
/* aritmetic variables to calculate*/
OPJ_UINT32 l_level_no;
OPJ_UINT32 l_rx0, l_ry0, l_rx1, l_ry1;
OPJ_UINT32 l_px0, l_py0, l_px1, py1;
OPJ_UINT32 l_product;
OPJ_UINT32 l_tcx0, l_tcy0, l_tcx1, l_tcy1;
OPJ_UINT32 l_pdx, l_pdy, l_pw, l_ph;
lResolutionPtr = p_resolutions ? p_resolutions[compno] : NULL;
l_tcx0 = opj_uint_ceildiv(*p_tx0, l_img_comp->dx);
l_tcy0 = opj_uint_ceildiv(*p_ty0, l_img_comp->dy);
l_tcx1 = opj_uint_ceildiv(*p_tx1, l_img_comp->dx);
l_tcy1 = opj_uint_ceildiv(*p_ty1, l_img_comp->dy);
if (l_tccp->numresolutions > *p_max_res) {
*p_max_res = l_tccp->numresolutions;
}
/* use custom size for precincts*/
l_level_no = l_tccp->numresolutions;
for (resno = 0; resno < l_tccp->numresolutions; ++resno) {
OPJ_UINT32 l_dx, l_dy;
--l_level_no;
/* precinct width and height*/
l_pdx = l_tccp->prcw[resno];
l_pdy = l_tccp->prch[resno];
if (lResolutionPtr) {
*lResolutionPtr++ = l_pdx;
*lResolutionPtr++ = l_pdy;
}
if (l_pdx + l_level_no < 32 &&
l_img_comp->dx <= UINT_MAX / (1u << (l_pdx + l_level_no))) {
l_dx = l_img_comp->dx * (1u << (l_pdx + l_level_no));
/* take the minimum size for l_dx for each comp and resolution*/
*p_dx_min = opj_uint_min(*p_dx_min, l_dx);
}
if (l_pdy + l_level_no < 32 &&
l_img_comp->dy <= UINT_MAX / (1u << (l_pdy + l_level_no))) {
l_dy = l_img_comp->dy * (1u << (l_pdy + l_level_no));
*p_dy_min = opj_uint_min(*p_dy_min, l_dy);
}
/* various calculations of extents*/
l_rx0 = opj_uint_ceildivpow2(l_tcx0, l_level_no);
l_ry0 = opj_uint_ceildivpow2(l_tcy0, l_level_no);
l_rx1 = opj_uint_ceildivpow2(l_tcx1, l_level_no);
l_ry1 = opj_uint_ceildivpow2(l_tcy1, l_level_no);
l_px0 = opj_uint_floordivpow2(l_rx0, l_pdx) << l_pdx;
l_py0 = opj_uint_floordivpow2(l_ry0, l_pdy) << l_pdy;
l_px1 = opj_uint_ceildivpow2(l_rx1, l_pdx) << l_pdx;
py1 = opj_uint_ceildivpow2(l_ry1, l_pdy) << l_pdy;
l_pw = (l_rx0 == l_rx1) ? 0 : ((l_px1 - l_px0) >> l_pdx);
l_ph = (l_ry0 == l_ry1) ? 0 : ((py1 - l_py0) >> l_pdy);
if (lResolutionPtr) {
*lResolutionPtr++ = l_pw;
*lResolutionPtr++ = l_ph;
}
l_product = l_pw * l_ph;
/* update precision*/
if (l_product > *p_max_prec) {
*p_max_prec = l_product;
}
}
++l_tccp;
++l_img_comp;
}
}
static opj_pi_iterator_t * opj_pi_create(const opj_image_t *image,
const opj_cp_t *cp,
OPJ_UINT32 tileno,
opj_event_mgr_t* manager)
{
/* loop*/
OPJ_UINT32 pino, compno;
/* number of poc in the p_pi*/
OPJ_UINT32 l_poc_bound;
/* pointers to tile coding parameters and components.*/
opj_pi_iterator_t *l_pi = 00;
opj_tcp_t *tcp = 00;
const opj_tccp_t *tccp = 00;
/* current packet iterator being allocated*/
opj_pi_iterator_t *l_current_pi = 00;
/* preconditions in debug*/
assert(cp != 00);
assert(image != 00);
assert(tileno < cp->tw * cp->th);
/* initializations*/
tcp = &cp->tcps[tileno];
l_poc_bound = tcp->numpocs + 1;
/* memory allocations*/
l_pi = (opj_pi_iterator_t*) opj_calloc((l_poc_bound),
sizeof(opj_pi_iterator_t));
if (!l_pi) {
return NULL;
}
l_current_pi = l_pi;
for (pino = 0; pino < l_poc_bound ; ++pino) {
l_current_pi->manager = manager;
l_current_pi->comps = (opj_pi_comp_t*) opj_calloc(image->numcomps,
sizeof(opj_pi_comp_t));
if (! l_current_pi->comps) {
opj_pi_destroy(l_pi, l_poc_bound);
return NULL;
}
l_current_pi->numcomps = image->numcomps;
for (compno = 0; compno < image->numcomps; ++compno) {
opj_pi_comp_t *comp = &l_current_pi->comps[compno];
tccp = &tcp->tccps[compno];
comp->resolutions = (opj_pi_resolution_t*) opj_calloc(tccp->numresolutions,
sizeof(opj_pi_resolution_t));
if (!comp->resolutions) {
opj_pi_destroy(l_pi, l_poc_bound);
return 00;
}
comp->numresolutions = tccp->numresolutions;
}
++l_current_pi;
}
return l_pi;
}
static void opj_pi_update_encode_poc_and_final(opj_cp_t *p_cp,
OPJ_UINT32 p_tileno,
OPJ_UINT32 p_tx0,
OPJ_UINT32 p_tx1,
OPJ_UINT32 p_ty0,
OPJ_UINT32 p_ty1,
OPJ_UINT32 p_max_prec,
OPJ_UINT32 p_max_res,
OPJ_UINT32 p_dx_min,
OPJ_UINT32 p_dy_min)
{
/* loop*/
OPJ_UINT32 pino;
/* tile coding parameter*/
opj_tcp_t *l_tcp = 00;
/* current poc being updated*/
opj_poc_t * l_current_poc = 00;
/* number of pocs*/
OPJ_UINT32 l_poc_bound;
OPJ_ARG_NOT_USED(p_max_res);
/* preconditions in debug*/
assert(p_cp != 00);
assert(p_tileno < p_cp->tw * p_cp->th);
/* initializations*/
l_tcp = &p_cp->tcps [p_tileno];
/* number of iterations in the loop */
l_poc_bound = l_tcp->numpocs + 1;
/* start at first element, and to make sure the compiler will not make a calculation each time in the loop
store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
l_current_poc = l_tcp->pocs;
l_current_poc->compS = l_current_poc->compno0;
l_current_poc->compE = l_current_poc->compno1;
l_current_poc->resS = l_current_poc->resno0;
l_current_poc->resE = l_current_poc->resno1;
l_current_poc->layE = l_current_poc->layno1;
/* special treatment for the first element*/
l_current_poc->layS = 0;
l_current_poc->prg = l_current_poc->prg1;
l_current_poc->prcS = 0;
l_current_poc->prcE = p_max_prec;
l_current_poc->txS = (OPJ_UINT32)p_tx0;
l_current_poc->txE = (OPJ_UINT32)p_tx1;
l_current_poc->tyS = (OPJ_UINT32)p_ty0;
l_current_poc->tyE = (OPJ_UINT32)p_ty1;
l_current_poc->dx = p_dx_min;
l_current_poc->dy = p_dy_min;
++ l_current_poc;
for (pino = 1; pino < l_poc_bound ; ++pino) {
l_current_poc->compS = l_current_poc->compno0;
l_current_poc->compE = l_current_poc->compno1;
l_current_poc->resS = l_current_poc->resno0;
l_current_poc->resE = l_current_poc->resno1;
l_current_poc->layE = l_current_poc->layno1;
l_current_poc->prg = l_current_poc->prg1;
l_current_poc->prcS = 0;
/* special treatment here different from the first element*/
l_current_poc->layS = (l_current_poc->layE > (l_current_poc - 1)->layE) ?
l_current_poc->layE : 0;
l_current_poc->prcE = p_max_prec;
l_current_poc->txS = (OPJ_UINT32)p_tx0;
l_current_poc->txE = (OPJ_UINT32)p_tx1;
l_current_poc->tyS = (OPJ_UINT32)p_ty0;
l_current_poc->tyE = (OPJ_UINT32)p_ty1;
l_current_poc->dx = p_dx_min;
l_current_poc->dy = p_dy_min;
++ l_current_poc;
}
}
static void opj_pi_update_encode_not_poc(opj_cp_t *p_cp,
OPJ_UINT32 p_num_comps,
OPJ_UINT32 p_tileno,
OPJ_UINT32 p_tx0,
OPJ_UINT32 p_tx1,
OPJ_UINT32 p_ty0,
OPJ_UINT32 p_ty1,
OPJ_UINT32 p_max_prec,
OPJ_UINT32 p_max_res,
OPJ_UINT32 p_dx_min,
OPJ_UINT32 p_dy_min)
{
/* loop*/
OPJ_UINT32 pino;
/* tile coding parameter*/
opj_tcp_t *l_tcp = 00;
/* current poc being updated*/
opj_poc_t * l_current_poc = 00;
/* number of pocs*/
OPJ_UINT32 l_poc_bound;
/* preconditions in debug*/
assert(p_cp != 00);
assert(p_tileno < p_cp->tw * p_cp->th);
/* initializations*/
l_tcp = &p_cp->tcps [p_tileno];
/* number of iterations in the loop */
l_poc_bound = l_tcp->numpocs + 1;
/* start at first element, and to make sure the compiler will not make a calculation each time in the loop
store a pointer to the current element to modify rather than l_tcp->pocs[i]*/
l_current_poc = l_tcp->pocs;
for (pino = 0; pino < l_poc_bound ; ++pino) {
l_current_poc->compS = 0;
l_current_poc->compE = p_num_comps;/*p_image->numcomps;*/
l_current_poc->resS = 0;
l_current_poc->resE = p_max_res;
l_current_poc->layS = 0;
l_current_poc->layE = l_tcp->numlayers;
l_current_poc->prg = l_tcp->prg;
l_current_poc->prcS = 0;
l_current_poc->prcE = p_max_prec;
l_current_poc->txS = p_tx0;
l_current_poc->txE = p_tx1;
l_current_poc->tyS = p_ty0;
l_current_poc->tyE = p_ty1;
l_current_poc->dx = p_dx_min;
l_current_poc->dy = p_dy_min;
++ l_current_poc;
}
}
static void opj_pi_update_decode_poc(opj_pi_iterator_t * p_pi,
opj_tcp_t * p_tcp,
OPJ_UINT32 p_max_precision,
OPJ_UINT32 p_max_res)
{
/* loop*/
OPJ_UINT32 pino;
/* encoding prameters to set*/
OPJ_UINT32 l_bound;
opj_pi_iterator_t * l_current_pi = 00;
opj_poc_t* l_current_poc = 0;
OPJ_ARG_NOT_USED(p_max_res);
/* preconditions in debug*/
assert(p_pi != 00);
assert(p_tcp != 00);
/* initializations*/
l_bound = p_tcp->numpocs + 1;
l_current_pi = p_pi;
l_current_poc = p_tcp->pocs;
for (pino = 0; pino < l_bound; ++pino) {
l_current_pi->poc.prg = l_current_poc->prg; /* Progression Order #0 */
l_current_pi->first = 1;
l_current_pi->poc.resno0 =
l_current_poc->resno0; /* Resolution Level Index #0 (Start) */
l_current_pi->poc.compno0 =
l_current_poc->compno0; /* Component Index #0 (Start) */
l_current_pi->poc.layno0 = 0;
l_current_pi->poc.precno0 = 0;
l_current_pi->poc.resno1 =
l_current_poc->resno1; /* Resolution Level Index #0 (End) */
l_current_pi->poc.compno1 =
l_current_poc->compno1; /* Component Index #0 (End) */
l_current_pi->poc.layno1 = opj_uint_min(l_current_poc->layno1,
p_tcp->numlayers); /* Layer Index #0 (End) */
l_current_pi->poc.precno1 = p_max_precision;
++l_current_pi;
++l_current_poc;
}
}
static void opj_pi_update_decode_not_poc(opj_pi_iterator_t * p_pi,
opj_tcp_t * p_tcp,
OPJ_UINT32 p_max_precision,
OPJ_UINT32 p_max_res)
{
/* loop*/
OPJ_UINT32 pino;
/* encoding prameters to set*/
OPJ_UINT32 l_bound;
opj_pi_iterator_t * l_current_pi = 00;
/* preconditions in debug*/
assert(p_tcp != 00);
assert(p_pi != 00);
/* initializations*/
l_bound = p_tcp->numpocs + 1;
l_current_pi = p_pi;
for (pino = 0; pino < l_bound; ++pino) {
l_current_pi->poc.prg = p_tcp->prg;
l_current_pi->first = 1;
l_current_pi->poc.resno0 = 0;
l_current_pi->poc.compno0 = 0;
l_current_pi->poc.layno0 = 0;
l_current_pi->poc.precno0 = 0;
l_current_pi->poc.resno1 = p_max_res;
l_current_pi->poc.compno1 = l_current_pi->numcomps;
l_current_pi->poc.layno1 = p_tcp->numlayers;
l_current_pi->poc.precno1 = p_max_precision;
++l_current_pi;
}
}
static OPJ_BOOL opj_pi_check_next_level(OPJ_INT32 pos,
opj_cp_t *cp,
OPJ_UINT32 tileno,
OPJ_UINT32 pino,
const OPJ_CHAR *prog)
{
OPJ_INT32 i;
opj_tcp_t *tcps = &cp->tcps[tileno];
opj_poc_t *tcp = &tcps->pocs[pino];
if (pos >= 0) {
for (i = pos; pos >= 0; i--) {
switch (prog[i]) {
case 'R':
if (tcp->res_t == tcp->resE) {
if (opj_pi_check_next_level(pos - 1, cp, tileno, pino, prog)) {
return OPJ_TRUE;
} else {
return OPJ_FALSE;
}
} else {
return OPJ_TRUE;
}
break;
case 'C':
if (tcp->comp_t == tcp->compE) {
if (opj_pi_check_next_level(pos - 1, cp, tileno, pino, prog)) {
return OPJ_TRUE;
} else {
return OPJ_FALSE;
}
} else {
return OPJ_TRUE;
}
break;
case 'L':
if (tcp->lay_t == tcp->layE) {
if (opj_pi_check_next_level(pos - 1, cp, tileno, pino, prog)) {
return OPJ_TRUE;
} else {
return OPJ_FALSE;
}
} else {
return OPJ_TRUE;
}
break;
case 'P':
switch (tcp->prg) {
case OPJ_LRCP: /* fall through */
case OPJ_RLCP:
if (tcp->prc_t == tcp->prcE) {
if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
return OPJ_TRUE;
} else {
return OPJ_FALSE;
}
} else {
return OPJ_TRUE;
}
break;
default:
if (tcp->tx0_t == tcp->txE) {
/*TY*/
if (tcp->ty0_t == tcp->tyE) {
if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
return OPJ_TRUE;
} else {
return OPJ_FALSE;
}
} else {
return OPJ_TRUE;
}/*TY*/
} else {
return OPJ_TRUE;
}
break;
}/*end case P*/
}/*end switch*/
}/*end for*/
}/*end if*/
return OPJ_FALSE;
}
/*
==========================================================
Packet iterator interface
==========================================================
*/
opj_pi_iterator_t *opj_pi_create_decode(opj_image_t *p_image,
opj_cp_t *p_cp,
OPJ_UINT32 p_tile_no,
opj_event_mgr_t* manager)
{
OPJ_UINT32 numcomps = p_image->numcomps;
/* loop */
OPJ_UINT32 pino;
OPJ_UINT32 compno, resno;
/* to store w, h, dx and dy fro all components and resolutions */
OPJ_UINT32 * l_tmp_data;
OPJ_UINT32 ** l_tmp_ptr;
/* encoding prameters to set */
OPJ_UINT32 l_max_res;
OPJ_UINT32 l_max_prec;
OPJ_UINT32 l_tx0, l_tx1, l_ty0, l_ty1;
OPJ_UINT32 l_dx_min, l_dy_min;
OPJ_UINT32 l_bound;
OPJ_UINT32 l_step_p, l_step_c, l_step_r, l_step_l ;
OPJ_UINT32 l_data_stride;
/* pointers */
opj_pi_iterator_t *l_pi = 00;
opj_tcp_t *l_tcp = 00;
const opj_tccp_t *l_tccp = 00;
opj_pi_comp_t *l_current_comp = 00;
opj_image_comp_t * l_img_comp = 00;
opj_pi_iterator_t * l_current_pi = 00;
OPJ_UINT32 * l_encoding_value_ptr = 00;
/* preconditions in debug */
assert(p_cp != 00);
assert(p_image != 00);
assert(p_tile_no < p_cp->tw * p_cp->th);
/* initializations */
l_tcp = &p_cp->tcps[p_tile_no];
l_bound = l_tcp->numpocs + 1;
l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
l_tmp_data = (OPJ_UINT32*)opj_malloc(
l_data_stride * numcomps * sizeof(OPJ_UINT32));
if
(! l_tmp_data) {
return 00;
}
l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
numcomps * sizeof(OPJ_UINT32 *));
if
(! l_tmp_ptr) {
opj_free(l_tmp_data);
return 00;
}
/* memory allocation for pi */
l_pi = opj_pi_create(p_image, p_cp, p_tile_no, manager);
if (!l_pi) {
opj_free(l_tmp_data);
opj_free(l_tmp_ptr);
return 00;
}
l_encoding_value_ptr = l_tmp_data;
/* update pointer array */
for
(compno = 0; compno < numcomps; ++compno) {
l_tmp_ptr[compno] = l_encoding_value_ptr;
l_encoding_value_ptr += l_data_stride;
}
/* get encoding parameters */
opj_get_all_encoding_parameters(p_image, p_cp, p_tile_no, &l_tx0, &l_tx1,
&l_ty0, &l_ty1, &l_dx_min, &l_dy_min, &l_max_prec, &l_max_res, l_tmp_ptr);
/* step calculations */
l_step_p = 1;
l_step_c = l_max_prec * l_step_p;
l_step_r = numcomps * l_step_c;
l_step_l = l_max_res * l_step_r;
/* set values for first packet iterator */
l_current_pi = l_pi;
/* memory allocation for include */
/* prevent an integer overflow issue */
/* 0 < l_tcp->numlayers < 65536 c.f. opj_j2k_read_cod in j2k.c */
l_current_pi->include = 00;
if (l_step_l <= (UINT_MAX / (l_tcp->numlayers + 1U))) {
l_current_pi->include_size = (l_tcp->numlayers + 1U) * l_step_l;
l_current_pi->include = (OPJ_INT16*) opj_calloc(
l_current_pi->include_size, sizeof(OPJ_INT16));
}
if (!l_current_pi->include) {
opj_free(l_tmp_data);
opj_free(l_tmp_ptr);
opj_pi_destroy(l_pi, l_bound);
return 00;
}
/* special treatment for the first packet iterator */
l_current_comp = l_current_pi->comps;
l_img_comp = p_image->comps;
l_tccp = l_tcp->tccps;
l_current_pi->tx0 = l_tx0;
l_current_pi->ty0 = l_ty0;
l_current_pi->tx1 = l_tx1;
l_current_pi->ty1 = l_ty1;
/*l_current_pi->dx = l_img_comp->dx;*/
/*l_current_pi->dy = l_img_comp->dy;*/
l_current_pi->step_p = l_step_p;
l_current_pi->step_c = l_step_c;
l_current_pi->step_r = l_step_r;
l_current_pi->step_l = l_step_l;
/* allocation for components and number of components has already been calculated by opj_pi_create */
for
(compno = 0; compno < numcomps; ++compno) {
opj_pi_resolution_t *l_res = l_current_comp->resolutions;
l_encoding_value_ptr = l_tmp_ptr[compno];
l_current_comp->dx = l_img_comp->dx;
l_current_comp->dy = l_img_comp->dy;
/* resolutions have already been initialized */
for
(resno = 0; resno < l_current_comp->numresolutions; resno++) {
l_res->pdx = *(l_encoding_value_ptr++);
l_res->pdy = *(l_encoding_value_ptr++);
l_res->pw = *(l_encoding_value_ptr++);
l_res->ph = *(l_encoding_value_ptr++);
++l_res;
}
++l_current_comp;
++l_img_comp;
++l_tccp;
}
++l_current_pi;
for (pino = 1 ; pino < l_bound ; ++pino) {
l_current_comp = l_current_pi->comps;
l_img_comp = p_image->comps;
l_tccp = l_tcp->tccps;
l_current_pi->tx0 = l_tx0;
l_current_pi->ty0 = l_ty0;
l_current_pi->tx1 = l_tx1;
l_current_pi->ty1 = l_ty1;
/*l_current_pi->dx = l_dx_min;*/
/*l_current_pi->dy = l_dy_min;*/
l_current_pi->step_p = l_step_p;
l_current_pi->step_c = l_step_c;
l_current_pi->step_r = l_step_r;
l_current_pi->step_l = l_step_l;
/* allocation for components and number of components has already been calculated by opj_pi_create */
for
(compno = 0; compno < numcomps; ++compno) {
opj_pi_resolution_t *l_res = l_current_comp->resolutions;
l_encoding_value_ptr = l_tmp_ptr[compno];
l_current_comp->dx = l_img_comp->dx;
l_current_comp->dy = l_img_comp->dy;
/* resolutions have already been initialized */
for
(resno = 0; resno < l_current_comp->numresolutions; resno++) {
l_res->pdx = *(l_encoding_value_ptr++);
l_res->pdy = *(l_encoding_value_ptr++);
l_res->pw = *(l_encoding_value_ptr++);
l_res->ph = *(l_encoding_value_ptr++);
++l_res;
}
++l_current_comp;
++l_img_comp;
++l_tccp;
}
/* special treatment*/
l_current_pi->include = (l_current_pi - 1)->include;
l_current_pi->include_size = (l_current_pi - 1)->include_size;
++l_current_pi;
}
opj_free(l_tmp_data);
l_tmp_data = 00;
opj_free(l_tmp_ptr);
l_tmp_ptr = 00;
if
(l_tcp->POC) {
opj_pi_update_decode_poc(l_pi, l_tcp, l_max_prec, l_max_res);
} else {
opj_pi_update_decode_not_poc(l_pi, l_tcp, l_max_prec, l_max_res);
}
return l_pi;
}
OPJ_UINT32 opj_get_encoding_packet_count(const opj_image_t *p_image,
const opj_cp_t *p_cp,
OPJ_UINT32 p_tile_no)
{
OPJ_UINT32 l_max_res;
OPJ_UINT32 l_max_prec;
OPJ_UINT32 l_tx0, l_tx1, l_ty0, l_ty1;
OPJ_UINT32 l_dx_min, l_dy_min;
/* preconditions in debug*/
assert(p_cp != 00);
assert(p_image != 00);
assert(p_tile_no < p_cp->tw * p_cp->th);
/* get encoding parameters*/
opj_get_all_encoding_parameters(p_image, p_cp, p_tile_no, &l_tx0, &l_tx1,
&l_ty0, &l_ty1, &l_dx_min, &l_dy_min, &l_max_prec, &l_max_res, NULL);
return p_cp->tcps[p_tile_no].numlayers * l_max_prec * p_image->numcomps *
l_max_res;
}
opj_pi_iterator_t *opj_pi_initialise_encode(const opj_image_t *p_image,
opj_cp_t *p_cp,
OPJ_UINT32 p_tile_no,
J2K_T2_MODE p_t2_mode,
opj_event_mgr_t* manager)
{
OPJ_UINT32 numcomps = p_image->numcomps;
/* loop*/
OPJ_UINT32 pino;
OPJ_UINT32 compno, resno;
/* to store w, h, dx and dy fro all components and resolutions*/
OPJ_UINT32 * l_tmp_data;
OPJ_UINT32 ** l_tmp_ptr;
/* encoding prameters to set*/
OPJ_UINT32 l_max_res;
OPJ_UINT32 l_max_prec;
OPJ_UINT32 l_tx0, l_tx1, l_ty0, l_ty1;
OPJ_UINT32 l_dx_min, l_dy_min;
OPJ_UINT32 l_bound;
OPJ_UINT32 l_step_p, l_step_c, l_step_r, l_step_l ;
OPJ_UINT32 l_data_stride;
/* pointers*/
opj_pi_iterator_t *l_pi = 00;
opj_tcp_t *l_tcp = 00;
const opj_tccp_t *l_tccp = 00;
opj_pi_comp_t *l_current_comp = 00;
opj_image_comp_t * l_img_comp = 00;
opj_pi_iterator_t * l_current_pi = 00;
OPJ_UINT32 * l_encoding_value_ptr = 00;
/* preconditions in debug*/
assert(p_cp != 00);
assert(p_image != 00);
assert(p_tile_no < p_cp->tw * p_cp->th);
/* initializations*/
l_tcp = &p_cp->tcps[p_tile_no];
l_bound = l_tcp->numpocs + 1;
l_data_stride = 4 * OPJ_J2K_MAXRLVLS;
l_tmp_data = (OPJ_UINT32*)opj_malloc(
l_data_stride * numcomps * sizeof(OPJ_UINT32));
if (! l_tmp_data) {
return 00;
}
l_tmp_ptr = (OPJ_UINT32**)opj_malloc(
numcomps * sizeof(OPJ_UINT32 *));
if (! l_tmp_ptr) {
opj_free(l_tmp_data);
return 00;
}
/* memory allocation for pi*/
l_pi = opj_pi_create(p_image, p_cp, p_tile_no, manager);
if (!l_pi) {
opj_free(l_tmp_data);
opj_free(l_tmp_ptr);
return 00;
}
l_encoding_value_ptr = l_tmp_data;
/* update pointer array*/
for (compno = 0; compno < numcomps; ++compno) {
l_tmp_ptr[compno] = l_encoding_value_ptr;
l_encoding_value_ptr += l_data_stride;
}
/* get encoding parameters*/
opj_get_all_encoding_parameters(p_image, p_cp, p_tile_no, &l_tx0, &l_tx1,
&l_ty0, &l_ty1, &l_dx_min, &l_dy_min, &l_max_prec, &l_max_res, l_tmp_ptr);
/* step calculations*/
l_step_p = 1;
l_step_c = l_max_prec * l_step_p;
l_step_r = numcomps * l_step_c;
l_step_l = l_max_res * l_step_r;
/* set values for first packet iterator*/
l_pi->tp_on = (OPJ_BYTE)p_cp->m_specific_param.m_enc.m_tp_on;
l_current_pi = l_pi;
/* memory allocation for include*/
l_current_pi->include_size = l_tcp->numlayers * l_step_l;
l_current_pi->include = (OPJ_INT16*) opj_calloc(l_current_pi->include_size,
sizeof(OPJ_INT16));
if (!l_current_pi->include) {
opj_free(l_tmp_data);
opj_free(l_tmp_ptr);
opj_pi_destroy(l_pi, l_bound);
return 00;
}
/* special treatment for the first packet iterator*/
l_current_comp = l_current_pi->comps;
l_img_comp = p_image->comps;
l_tccp = l_tcp->tccps;
l_current_pi->tx0 = l_tx0;
l_current_pi->ty0 = l_ty0;
l_current_pi->tx1 = l_tx1;
l_current_pi->ty1 = l_ty1;
l_current_pi->dx = l_dx_min;
l_current_pi->dy = l_dy_min;
l_current_pi->step_p = l_step_p;
l_current_pi->step_c = l_step_c;
l_current_pi->step_r = l_step_r;
l_current_pi->step_l = l_step_l;
/* allocation for components and number of components has already been calculated by opj_pi_create */
for (compno = 0; compno < numcomps; ++compno) {
opj_pi_resolution_t *l_res = l_current_comp->resolutions;
l_encoding_value_ptr = l_tmp_ptr[compno];
l_current_comp->dx = l_img_comp->dx;
l_current_comp->dy = l_img_comp->dy;
/* resolutions have already been initialized */
for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
l_res->pdx = *(l_encoding_value_ptr++);
l_res->pdy = *(l_encoding_value_ptr++);
l_res->pw = *(l_encoding_value_ptr++);
l_res->ph = *(l_encoding_value_ptr++);
++l_res;
}
++l_current_comp;
++l_img_comp;
++l_tccp;
}
++l_current_pi;
for (pino = 1 ; pino < l_bound ; ++pino) {
l_current_comp = l_current_pi->comps;
l_img_comp = p_image->comps;
l_tccp = l_tcp->tccps;
l_current_pi->tx0 = l_tx0;
l_current_pi->ty0 = l_ty0;
l_current_pi->tx1 = l_tx1;
l_current_pi->ty1 = l_ty1;
l_current_pi->dx = l_dx_min;
l_current_pi->dy = l_dy_min;
l_current_pi->step_p = l_step_p;
l_current_pi->step_c = l_step_c;
l_current_pi->step_r = l_step_r;
l_current_pi->step_l = l_step_l;
/* allocation for components and number of components has already been calculated by opj_pi_create */
for (compno = 0; compno < numcomps; ++compno) {
opj_pi_resolution_t *l_res = l_current_comp->resolutions;
l_encoding_value_ptr = l_tmp_ptr[compno];
l_current_comp->dx = l_img_comp->dx;
l_current_comp->dy = l_img_comp->dy;
/* resolutions have already been initialized */
for (resno = 0; resno < l_current_comp->numresolutions; resno++) {
l_res->pdx = *(l_encoding_value_ptr++);
l_res->pdy = *(l_encoding_value_ptr++);
l_res->pw = *(l_encoding_value_ptr++);
l_res->ph = *(l_encoding_value_ptr++);
++l_res;
}
++l_current_comp;
++l_img_comp;
++l_tccp;
}
/* special treatment*/
l_current_pi->include = (l_current_pi - 1)->include;
l_current_pi->include_size = (l_current_pi - 1)->include_size;
++l_current_pi;
}
opj_free(l_tmp_data);
l_tmp_data = 00;
opj_free(l_tmp_ptr);
l_tmp_ptr = 00;
if (l_tcp->POC && (OPJ_IS_CINEMA(p_cp->rsiz) || p_t2_mode == FINAL_PASS)) {
opj_pi_update_encode_poc_and_final(p_cp, p_tile_no, l_tx0, l_tx1, l_ty0, l_ty1,
l_max_prec, l_max_res, l_dx_min, l_dy_min);
} else {
opj_pi_update_encode_not_poc(p_cp, numcomps, p_tile_no, l_tx0, l_tx1,
l_ty0, l_ty1, l_max_prec, l_max_res, l_dx_min, l_dy_min);
}
return l_pi;
}
void opj_pi_create_encode(opj_pi_iterator_t *pi,
opj_cp_t *cp,
OPJ_UINT32 tileno,
OPJ_UINT32 pino,
OPJ_UINT32 tpnum,
OPJ_INT32 tppos,
J2K_T2_MODE t2_mode)
{
const OPJ_CHAR *prog;
OPJ_INT32 i;
OPJ_UINT32 incr_top = 1, resetX = 0;
opj_tcp_t *tcps = &cp->tcps[tileno];
opj_poc_t *tcp = &tcps->pocs[pino];
prog = opj_j2k_convert_progression_order(tcp->prg);
pi[pino].first = 1;
pi[pino].poc.prg = tcp->prg;
if (!(cp->m_specific_param.m_enc.m_tp_on && ((!OPJ_IS_CINEMA(cp->rsiz) &&
!OPJ_IS_IMF(cp->rsiz) &&
(t2_mode == FINAL_PASS)) || OPJ_IS_CINEMA(cp->rsiz) || OPJ_IS_IMF(cp->rsiz)))) {
pi[pino].poc.resno0 = tcp->resS;
pi[pino].poc.resno1 = tcp->resE;
pi[pino].poc.compno0 = tcp->compS;
pi[pino].poc.compno1 = tcp->compE;
pi[pino].poc.layno0 = tcp->layS;
pi[pino].poc.layno1 = tcp->layE;
pi[pino].poc.precno0 = tcp->prcS;
pi[pino].poc.precno1 = tcp->prcE;
pi[pino].poc.tx0 = tcp->txS;
pi[pino].poc.ty0 = tcp->tyS;
pi[pino].poc.tx1 = tcp->txE;
pi[pino].poc.ty1 = tcp->tyE;
} else {
for (i = tppos + 1; i < 4; i++) {
switch (prog[i]) {
case 'R':
pi[pino].poc.resno0 = tcp->resS;
pi[pino].poc.resno1 = tcp->resE;
break;
case 'C':
pi[pino].poc.compno0 = tcp->compS;
pi[pino].poc.compno1 = tcp->compE;
break;
case 'L':
pi[pino].poc.layno0 = tcp->layS;
pi[pino].poc.layno1 = tcp->layE;
break;
case 'P':
switch (tcp->prg) {
case OPJ_LRCP:
case OPJ_RLCP:
pi[pino].poc.precno0 = tcp->prcS;
pi[pino].poc.precno1 = tcp->prcE;
break;
default:
pi[pino].poc.tx0 = tcp->txS;
pi[pino].poc.ty0 = tcp->tyS;
pi[pino].poc.tx1 = tcp->txE;
pi[pino].poc.ty1 = tcp->tyE;
break;
}
break;
}
}
if (tpnum == 0) {
for (i = tppos; i >= 0; i--) {
switch (prog[i]) {
case 'C':
tcp->comp_t = tcp->compS;
pi[pino].poc.compno0 = tcp->comp_t;
pi[pino].poc.compno1 = tcp->comp_t + 1;
tcp->comp_t += 1;
break;
case 'R':
tcp->res_t = tcp->resS;
pi[pino].poc.resno0 = tcp->res_t;
pi[pino].poc.resno1 = tcp->res_t + 1;
tcp->res_t += 1;
break;
case 'L':
tcp->lay_t = tcp->layS;
pi[pino].poc.layno0 = tcp->lay_t;
pi[pino].poc.layno1 = tcp->lay_t + 1;
tcp->lay_t += 1;
break;
case 'P':
switch (tcp->prg) {
case OPJ_LRCP:
case OPJ_RLCP:
tcp->prc_t = tcp->prcS;
pi[pino].poc.precno0 = tcp->prc_t;
pi[pino].poc.precno1 = tcp->prc_t + 1;
tcp->prc_t += 1;
break;
default:
tcp->tx0_t = tcp->txS;
tcp->ty0_t = tcp->tyS;
pi[pino].poc.tx0 = tcp->tx0_t;
pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx);
pi[pino].poc.ty0 = tcp->ty0_t;
pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
break;
}
break;
}
}
incr_top = 1;
} else {
for (i = tppos; i >= 0; i--) {
switch (prog[i]) {
case 'C':
pi[pino].poc.compno0 = tcp->comp_t - 1;
pi[pino].poc.compno1 = tcp->comp_t;
break;
case 'R':
pi[pino].poc.resno0 = tcp->res_t - 1;
pi[pino].poc.resno1 = tcp->res_t;
break;
case 'L':
pi[pino].poc.layno0 = tcp->lay_t - 1;
pi[pino].poc.layno1 = tcp->lay_t;
break;
case 'P':
switch (tcp->prg) {
case OPJ_LRCP:
case OPJ_RLCP:
pi[pino].poc.precno0 = tcp->prc_t - 1;
pi[pino].poc.precno1 = tcp->prc_t;
break;
default:
pi[pino].poc.tx0 = tcp->tx0_t - tcp->dx - (tcp->tx0_t % tcp->dx);
pi[pino].poc.tx1 = tcp->tx0_t ;
pi[pino].poc.ty0 = tcp->ty0_t - tcp->dy - (tcp->ty0_t % tcp->dy);
pi[pino].poc.ty1 = tcp->ty0_t ;
break;
}
break;
}
if (incr_top == 1) {
switch (prog[i]) {
case 'R':
if (tcp->res_t == tcp->resE) {
if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
tcp->res_t = tcp->resS;
pi[pino].poc.resno0 = tcp->res_t;
pi[pino].poc.resno1 = tcp->res_t + 1;
tcp->res_t += 1;
incr_top = 1;
} else {
incr_top = 0;
}
} else {
pi[pino].poc.resno0 = tcp->res_t;
pi[pino].poc.resno1 = tcp->res_t + 1;
tcp->res_t += 1;
incr_top = 0;
}
break;
case 'C':
if (tcp->comp_t == tcp->compE) {
if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
tcp->comp_t = tcp->compS;
pi[pino].poc.compno0 = tcp->comp_t;
pi[pino].poc.compno1 = tcp->comp_t + 1;
tcp->comp_t += 1;
incr_top = 1;
} else {
incr_top = 0;
}
} else {
pi[pino].poc.compno0 = tcp->comp_t;
pi[pino].poc.compno1 = tcp->comp_t + 1;
tcp->comp_t += 1;
incr_top = 0;
}
break;
case 'L':
if (tcp->lay_t == tcp->layE) {
if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
tcp->lay_t = tcp->layS;
pi[pino].poc.layno0 = tcp->lay_t;
pi[pino].poc.layno1 = tcp->lay_t + 1;
tcp->lay_t += 1;
incr_top = 1;
} else {
incr_top = 0;
}
} else {
pi[pino].poc.layno0 = tcp->lay_t;
pi[pino].poc.layno1 = tcp->lay_t + 1;
tcp->lay_t += 1;
incr_top = 0;
}
break;
case 'P':
switch (tcp->prg) {
case OPJ_LRCP:
case OPJ_RLCP:
if (tcp->prc_t == tcp->prcE) {
if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
tcp->prc_t = tcp->prcS;
pi[pino].poc.precno0 = tcp->prc_t;
pi[pino].poc.precno1 = tcp->prc_t + 1;
tcp->prc_t += 1;
incr_top = 1;
} else {
incr_top = 0;
}
} else {
pi[pino].poc.precno0 = tcp->prc_t;
pi[pino].poc.precno1 = tcp->prc_t + 1;
tcp->prc_t += 1;
incr_top = 0;
}
break;
default:
if (tcp->tx0_t >= tcp->txE) {
if (tcp->ty0_t >= tcp->tyE) {
if (opj_pi_check_next_level(i - 1, cp, tileno, pino, prog)) {
tcp->ty0_t = tcp->tyS;
pi[pino].poc.ty0 = tcp->ty0_t;
pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
incr_top = 1;
resetX = 1;
} else {
incr_top = 0;
resetX = 0;
}
} else {
pi[pino].poc.ty0 = tcp->ty0_t;
pi[pino].poc.ty1 = tcp->ty0_t + tcp->dy - (tcp->ty0_t % tcp->dy);
tcp->ty0_t = (OPJ_UINT32)pi[pino].poc.ty1;
incr_top = 0;
resetX = 1;
}
if (resetX == 1) {
tcp->tx0_t = tcp->txS;
pi[pino].poc.tx0 = tcp->tx0_t;
pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx);
tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
}
} else {
pi[pino].poc.tx0 = tcp->tx0_t;
pi[pino].poc.tx1 = tcp->tx0_t + tcp->dx - (tcp->tx0_t % tcp->dx);
tcp->tx0_t = (OPJ_UINT32)pi[pino].poc.tx1;
incr_top = 0;
}
break;
}
break;
}
}
}
}
}
}
void opj_pi_destroy(opj_pi_iterator_t *p_pi,
OPJ_UINT32 p_nb_elements)
{
OPJ_UINT32 compno, pino;
opj_pi_iterator_t *l_current_pi = p_pi;
if (p_pi) {
if (p_pi->include) {
opj_free(p_pi->include);
p_pi->include = 00;
}
for (pino = 0; pino < p_nb_elements; ++pino) {
if (l_current_pi->comps) {
opj_pi_comp_t *l_current_component = l_current_pi->comps;
for (compno = 0; compno < l_current_pi->numcomps; compno++) {
if (l_current_component->resolutions) {
opj_free(l_current_component->resolutions);
l_current_component->resolutions = 00;
}
++l_current_component;
}
opj_free(l_current_pi->comps);
l_current_pi->comps = 0;
}
++l_current_pi;
}
opj_free(p_pi);
}
}
void opj_pi_update_encoding_parameters(const opj_image_t *p_image,
opj_cp_t *p_cp,
OPJ_UINT32 p_tile_no)
{
/* encoding parameters to set */
OPJ_UINT32 l_max_res;
OPJ_UINT32 l_max_prec;
OPJ_UINT32 l_tx0, l_tx1, l_ty0, l_ty1;
OPJ_UINT32 l_dx_min, l_dy_min;
/* pointers */
opj_tcp_t *l_tcp = 00;
/* preconditions */
assert(p_cp != 00);
assert(p_image != 00);
assert(p_tile_no < p_cp->tw * p_cp->th);
l_tcp = &(p_cp->tcps[p_tile_no]);
/* get encoding parameters */
opj_get_encoding_parameters(p_image, p_cp, p_tile_no, &l_tx0, &l_tx1, &l_ty0,
&l_ty1, &l_dx_min, &l_dy_min, &l_max_prec, &l_max_res);
if (l_tcp->POC) {
opj_pi_update_encode_poc_and_final(p_cp, p_tile_no, l_tx0, l_tx1, l_ty0, l_ty1,
l_max_prec, l_max_res, l_dx_min, l_dy_min);
} else {
opj_pi_update_encode_not_poc(p_cp, p_image->numcomps, p_tile_no, l_tx0, l_tx1,
l_ty0, l_ty1, l_max_prec, l_max_res, l_dx_min, l_dy_min);
}
}
OPJ_BOOL opj_pi_next(opj_pi_iterator_t * pi)
{
switch (pi->poc.prg) {
case OPJ_LRCP:
return opj_pi_next_lrcp(pi);
case OPJ_RLCP:
return opj_pi_next_rlcp(pi);
case OPJ_RPCL:
return opj_pi_next_rpcl(pi);
case OPJ_PCRL:
return opj_pi_next_pcrl(pi);
case OPJ_CPRL:
return opj_pi_next_cprl(pi);
case OPJ_PROG_UNKNOWN:
return OPJ_FALSE;
}
return OPJ_FALSE;
}
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