138 lines
3.6 KiB
C
138 lines
3.6 KiB
C
/*
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* Copyright (c) 2001-2002, David Janssens
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* Copyright (c) 2003, Yannick Verschueren
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* Copyright (c) 2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __TCD_H
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#define __TCD_H
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#include "j2k.h"
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#include "tgt.h"
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typedef struct {
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int numpasses;
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int len;
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unsigned char *data;
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int maxpasses;
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int numnewpasses;
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int newlen;
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} tcd_seg_t;
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typedef struct {
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int rate;
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double distortiondec;
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} tcd_pass_t;
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typedef struct {
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int numpasses;
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int len;
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unsigned char *data;
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} tcd_layer_t;
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typedef struct {
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int x0, y0, x1, y1;
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int numbps;
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int numlenbits;
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int len;
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int numpasses;
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int numnewpasses;
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int numsegs;
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tcd_seg_t segs[100];
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unsigned char data[8192];
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int numpassesinlayers;
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tcd_layer_t layers[100];
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int totalpasses;
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tcd_pass_t passes[100];
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} tcd_cblk_t;
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typedef struct {
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int x0, y0, x1, y1;
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int cw, ch;
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tcd_cblk_t *cblks;
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tgt_tree_t *incltree;
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tgt_tree_t *imsbtree;
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} tcd_precinct_t;
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typedef struct {
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int x0, y0, x1, y1;
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int bandno;
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tcd_precinct_t *precincts;
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int numbps;
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int stepsize;
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} tcd_band_t;
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typedef struct {
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int x0, y0, x1, y1;
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int previous_x0, previous_y0, previous_x1, previous_y1; // usefull for the DWT
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int cas_col, cas_row; // usefull for the DWT
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int pw, ph;
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int numbands;
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tcd_band_t bands[3];
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} tcd_resolution_t;
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typedef struct {
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int x0, y0, x1, y1;
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int previous_row, previous_col; // usefull for the DWT
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int numresolutions;
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tcd_resolution_t *resolutions;
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int *data;
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} tcd_tilecomp_t;
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typedef struct {
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int x0, y0, x1, y1;
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int numcomps;
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//int PPT;
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//int len_ppt;
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tcd_tilecomp_t *comps;
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} tcd_tile_t;
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typedef struct {
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int tw, th;
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tcd_tile_t *tiles;
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} tcd_image_t;
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/*
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* Initialize the tile coder/decoder
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* img: raw image
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* cp: coding parameters
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* imgg: creation of index file
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*/
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void tcd_init(j2k_image_t *img, j2k_cp_t *cp, info_image_t *imgg);
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void tcd_free(j2k_image_t *img, j2k_cp_t *cp);
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/*
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* Decode a tile from a buffer into a raw image
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* src: source buffer
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* len: length of the source buffer
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* tileno: number that identifies the tile that will be decoded
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* imgg : Structure for index file
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*/
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int tcd_decode_tile(unsigned char *src, int len, int tileno, info_image_t *imgg);
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#endif
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