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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);