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/*
* Copyright (c) 2001-2002, David Janssens
* 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.
*/
#ifndef __PI_H
#define __PI_H
#include "j2k.h"
#include "tcd.h"
typedef struct {
int pdx, pdy;
int pw, ph;
} pi_resolution_t;
typedef struct {
int dx, dy;
int numresolutions;
pi_resolution_t *resolutions;
} pi_comp_t;
typedef struct {
short int *include; /* precise if the packet has been already used (usefull for progression order change) */
int step_l, step_r, step_c, step_p; /* different steps (layer, resolution, component, precinct) to localize the packet in the include vector */
int compno, resno, precno, layno; /* component, resolution, precinct and layer that indentify the packet */
int first; /* 0 if the first packet */
j2k_poc_t poc;
int numcomps;
pi_comp_t *comps;
int tx0, ty0, tx1, ty1;
int x, y, dx, dy;
} pi_iterator_t; /* packet iterator */
/*
* Create a packet iterator
* img: raw image for which the packets will be listed
* cp: coding paremeters
* tileno: number that identifies the tile for which to list the packets
* return value: returns a packet iterator that points to the first packet of the tile
*/
pi_iterator_t *pi_create(j2k_image_t * img, j2k_cp_t * cp, int tileno);
/*
* Modify the packet iterator to point to the next packet
* pi: packet iterator to modify
* return value: returns 0 if pi pointed to the last packet or else returns 1
*/
int pi_next(pi_iterator_t * pi);
#endif
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